JP6544801B2 - Injection direction display device of auxiliary nozzle of air jet room - Google Patents

Description

The present invention relates to a jet direction display device for an auxiliary nozzle of an air jet room that performs weft insertion using a weir and an auxiliary nozzle that has a lateral recess that is open toward the woven front.
In particular, the present invention relates to a small and light jet direction display device of an auxiliary nozzle of an air jet room suitable for carrying.
More particularly, the present invention relates to a jet direction display device of an auxiliary nozzle of an air jet room, which is small and light and can graphically display the air flow velocity along the weft insertion direction immediately after measurement of the flow velocity of the air flow.
More specifically, it is small and light, and the jet direction of the auxiliary nozzle of the air jet room can be graphically displayed, which can be graphically displayed along with the flow velocity of the air flow along the weft insertion direction measured immediately after measuring the flow velocity of the air flow. It relates to the device.

As a first prior art, an auxiliary nozzle according to the applicant's application, comprising a measuring head shaped to be fitted from the near side of the reed just in the guide groove of the reed, and trying to measure at one end face of this measuring head An auxiliary nozzle dirt measuring device is known, characterized in that a large number of pitot tubes pointing to the side are arranged at intervals between the tubes (Patent Document 1).
Next, the performance measurement and display device of the auxiliary nozzle of the air jet room, which is an improvement technique of the first prior art by the applicant using this first prior art, will be described with reference to FIGS. (Non-Patent Document 1).
The lower end portion of the weir 16 in which the air flow guide groove 14 is formed is squeezed by arranging the weirs 12 having the transversely oriented concave portions 10 opened to the front side of weaving (not shown) at predetermined intervals in the weft inserting direction. It is inserted into the upward groove 22 of -18 and firmly fixed to the sleeve 18 by the weir 24. After discharging the weft yarn 26 into the air flow guide groove 14 together with the air injection from the main nozzle 20, the auxiliary nozzles 28 arranged at predetermined intervals in the slot 18 are in the weft insertion direction in a relay manner, The air flow toward the air flow guide groove 14 is injected to perform weft insertion. As shown in FIG. 16A, the upper wall 36 which is substantially vertical, the upper wall 36 which is the lower edge of the upper convex portion 34 having a right triangle shape, and the upper edge of the lower convex portion 38 having an inverted right triangle shape. A laterally facing trapezoidal recess 10 is formed by the lower wall 42 which is The auxiliary nozzle 28 is in a penetrating state in the mounting block 44 fixed to the sleeve 18, and is at least rotatably provided about its axis, and the injection direction to the air flow guide groove 14 is determined, It is fixed by 46. Therefore, the woven front edge of the upper convex portion 34 is formed on the front lower slope 48 which descends downward toward the woven front. The jet flow from the auxiliary nozzle 28 passes through the back wall 32, the upper wall 36, and the center CE of the inscribed circle IC of the lower wall 42 and is directed to the corner 52 of the back wall 32 and the upper wall 36. .
A cube-shaped carrier 54 is provided so as to be movable along the airflow guide groove 14, and on the side opposite to the main nozzle 20 of the carrier 54, in the airflow guide groove 14, the first pitot tube in the first prior art The second pitot tube 58 and the third pitot tube 62 are disposed, and their tips are disposed in the same plane in the cross section of the airflow guide groove 14.
Furthermore, on the upper surface of the carrier 54, a first analog micro pressure gauge 64, a second analog micro pressure gauge 66, and the like connected to the first pitot tube 56, the second pitot tube 58, and the third pitot tube 62, respectively. The third analog micro pressure gauge 68 is fixed. Furthermore, a scale 72 is attached to the lower end of the front surface of the carrier 54, and the zero point thereof is aligned with the tip positions of the first pitot tube 56, the second pitot tube 58, and the third pitot tube 62. As disclosed in the first prior art, the first pitot tube 56 is near the lower corner portion 74 of the back wall 32 and the lower wall 42 and the second pitot tube 58 is the center CE of the inscribed circle IC. In the vicinity, the third pitot tube 62 is arranged near the opening 76 of the recess 10.
Next, a usage example of the performance measurement display device of the auxiliary nozzle 28 which is an improved technique of the first technique will be described. First, the back surface of the carrier 54 is placed on the lower front slope 48 to move the carrier 54 while positioning the first to third pitot pipes 56 to 62 in the airflow guide groove 14, and the zero point of the scale 72 In the state where the auxiliary nozzle 28 is positioned at a position of a predetermined distance on the nozzle 20 side, the nozzle is stopped. The position separated by the predetermined distance is a position where the jet flow from the auxiliary nozzle 28 directly flows into the first pitot pipe 56 to the third pitot pipe 62.
When air is jetted from the nozzle port 78 of the auxiliary nozzle 28 in this state, it travels to the airflow guide groove 14 while diffusing along the directional line D, and directly flows into the first pitot pipe 54 to the third pitot pipe 58 Do. The air flow introduced into the first to third pitot tubes 54 to 58 is processed by the pressure-rotation conversion mechanism of the corresponding first analog fine pressure gauge 64, second analog fine pressure gauge 66, and third analog fine pressure gauge 68. The head is converted to a pressure head, and further, the pressure head is converted to rotational movement of the analog needle 82 and displayed.
The operator indicates the numerical value (magnitude) indicated by the analog needle 82 in the first analog micro pressure gauge 64, the second analog micro pressure gauge 66, and the third analog micro pressure gauge 68, and the position (flow velocity) of the three analog needles 82 It is judged whether the directionality of the jet flow from the auxiliary nozzle 28 is good or not by the balance etc. of the auxiliary nozzle 28, and if improvement is required, the screw 46 is slightly loosened and the auxiliary nozzle 28 is rotated about its axis. It adjusts so that the injection direction of the injection flow from may become suitable.
As a second prior art, weft insertion passage is provided with a weir for forming weft flight passage by arranging a large number of weirs in weft insertion direction, and for weft insertion in the weft flight passage consisting of upper wall surface, back wall surface and lower wall surface In a jet direction-to-be-directed measurement apparatus for use in an air jet room for injecting air from an auxiliary nozzle, a plurality of pitot pipes for detecting a plurality of jet strength reflecting elements are arranged along the back wall from the upper wall surface of the weft flight passage. A digital display device for displaying the value of the jet flow intensity reflecting element measured by the pitot tube disposed in the vicinity of the upper corner of the weft flight passage among the plurality of pitot tubes; Jet directional direction measuring device in an air jet room provided with a bar graph display device for displaying the level difference of the values of jet intensity reflecting elements at other plural positions from the value of the jet intensity reflecting element near the upper corner portion Known (e.g., see Patent Document 2).
As a third prior art, an inspection apparatus main body movable along a guide rail provided in a latitudinal direction, a holder attached to the inspection apparatus main body so as to be movable in a longitudinal direction, and an holder At each weft direction measurement point determined from the flow velocity in the weir groove measured by the flow velocity detector for each of a plurality of lateral direction measurement points at the flow velocity detector for measuring the flow velocity in the weir groove A weft insertion inspection device for an air jet room is known that is characterized by including a controller that performs inspection based on a longitudinal flow velocity distribution (see, for example, Patent Document 3).

Utility model registration No. 2593335 (Figures 1 to 5, paragraph numbers 0005 to 0023) Patent No. 3103758 (FIGS. 1 to 13, Paragraph Nos. 0009 to 0050) JP 6-73641 (FIGS. 1 to 5, paragraph numbers 0011 to 0055)

Takayama Reed Co., Ltd. Website Product Information Maintenance Tool Series Nozzle Inspector Model Name TR-7700 (http://www.takayamareed.co.jp/page/kokunai/nozzleinspector.htm)

The first prior art improved technology converts the velocity water head of the air flow that has flowed into the first pitot pipe 56 to the third pitot pipe 62 into a pressure head using a pitot pipe, and further, a first analog micro pressure gauge 64, By converting the pressure head into the rotational movement of the analog needle by the second analog micro pressure gauge 66 and the third analog micro pressure gauge 68, it is possible to visualize the injection direction of the jet flow from the auxiliary nozzle 28, and further Since it is not used, it is a practical auxiliary nozzle injection direction measurement display device. However, since the display of the first analog micro pressure gauge 64 to the third analog micro pressure gauge 68 is an analog mechanical display, it is necessary to write or input in a predetermined form in order to leave it as a record. There is a problem that is extremely complicated. Also, since the analog micro pressure type measures the slight pressure through the pitot tube, the first pitot tube 56 to the third pitot tube 62 are mistakenly exposed to the jet stream in the vicinity of the nozzle opening 78 of the auxiliary nozzle 28 If you do, there is a problem that it will be damaged at the worst because you will receive a large pressure.

In the second prior art, the velocity head of the air flow introduced into it is converted into a pressure head by a pitot tube, and then converted into an electrical signal by a gauge pressure sensor, and numerical display based on the electrical signal, Since bar graph display is performed, there is an advantage that the jet direction state of the jet flow from the auxiliary nozzle can be easily visualized.
However, Pitot tubes for measuring the air flow velocity are precisely arranged along the back wall from the upper wall surface of the weft flight passage and moved so as not to damage the fine Pitot tubes and the weirs At the laboratory level, there are problems that are not practical at the weaving factory. That is, the second prior art has the problem of being expensive and large. In other words, the second prior art has problems that are not practical in a textile factory where ease of use and low cost are required.

In the third prior art, although the flow velocity detector moving in the furrow groove is one pitot tube, the pitot tube is automatically moved in the weft insertion direction (longitudinal direction of weir) and in the warp direction. Since the flow velocity is measured at a plurality of positions in both the weft inserting direction and the warp direction, the apparatus becomes extremely large, and as in the second prior art, it is expensive, large, and not practical.

The combination of a pitot tube and an analog micro pressure gauge in the improved technique of the first prior art in combination with the piezoelectric element and the two-dimensional display in the second or third prior art makes the operation complicated. The problems in the prior art improvement techniques can be solved.
However, the jet flow from the auxiliary nozzle actually fluctuates in flow velocity, as in the case of the breathing phenomenon in relation to the surrounding air flow. There is a problem that the air flow velocity can not be measured, and the injection direction of the auxiliary nozzle according to the actual situation can not be displayed.

The first object which is the basic object of the present invention is to provide a jet direction display device of an auxiliary nozzle of an air jet room which is lightweight, compact and portable and easy to use in a textile factory.
The second object of the present invention is to provide, in addition to the first object, an apparatus for displaying the jet direction of an auxiliary nozzle of an air jet room which can easily recognize the jet direction of the auxiliary nozzle.
The third object of the present invention is to provide, in addition to the first object, a device for displaying the jet direction of an auxiliary nozzle of an air jet room capable of displaying the jet direction of the auxiliary nozzle matched to the substance. .
It is a fourth object of the present invention to provide, in addition to the first object, an apparatus for displaying the jet direction of an auxiliary nozzle of an air jet room which can easily store the measured air flow rate.
The fifth object of the present invention is to provide a jet direction display device for auxiliary nozzles of an air jet room that can be easily deleted if the stored air flow velocity is inadequate.
It is a sixth object of the present invention to provide, in addition to the first object, a device for displaying the jet direction of auxiliary nozzles of an air jet room which can visualize the jet directions of a plurality of auxiliary nozzles.
The seventh object of the present invention is, in addition to the first object, an auxiliary nozzle of an air jet room that can be easily erased completely if the stored electric signal related to the jetting direction of the auxiliary nozzle is not suitable. It is an object of the present invention to provide an injection direction display device.
The eighth object of the present invention is to provide a jet direction display device for the auxiliary nozzle of the air jet room, which makes it easy to determine whether the jet direction of the auxiliary nozzle is good or not.
The ninth object of the present invention is to provide a jet direction display device of the auxiliary nozzle of the air jet room which makes it easier to judge the quality of the jet direction of the auxiliary nozzle.

In order to achieve this object, the first invention according to the present invention is configured as follows.
From the auxiliary nozzles disposed at a predetermined interval along the weir, which is formed by arranging air flow guide grooves by arranging lathers in which lateral concave portions are formed on the weaving front at predetermined intervals in the weft insertion direction An injection direction measuring device of an auxiliary nozzle of an air jet room for performing weft insertion by injecting an air flow which is in an oblique weft insertion direction and directed to the air flow guiding groove,
A carrier capable of moving along the air flow guide groove, an air flow velocity detecting device moving while being located in the air flow guide groove, at least a back portion of the air flow guide groove in the same cross section in the air flow guide groove Direction of the auxiliary nozzles of the air jet room disposed at the central portion and the open side so as to display the air flow velocity data from the air flow velocity detecting devices on separate display devices integrally provided on the carrier In the display,
The air flow rate detection device includes an air flow electrical conversion device that converts air flow rate into an electrical signal,
The display device is a two-dimensional display device integrally provided on the carrier, and air flow velocity data for each of the air flow velocity detection devices is determined based on an output from the pressure-electricity conversion device. It is an injection direction display apparatus of the auxiliary | assistant nozzle of the air jet room characterized by being separately displayed on a position.

According to a second aspect of the invention, in the individual display, the display facing the air flow velocity detection device at the central portion is disposed at the central portion of the two-dimensional display device and is relative to the air flow velocity detection device at the back and the open side According to the first aspect of the present invention, there is provided the jet direction display device for the auxiliary nozzle of the air jet room according to the first aspect of the present invention, wherein

A third invention is characterized in that a statistical processing device for statistically processing an electrical signal related to the air flow velocity data sampled a plurality of times by the operation of a data storage switch is disposed on the carrier. It is an injection direction display apparatus of the auxiliary | assistant nozzle of the air jet room as described in this invention.

According to a fourth invention, in the air jet room according to the third invention, a storage device for storing an electrical signal related to the air flow velocity data subjected to the statistical processing device is disposed in the carrier. It is an injection direction display apparatus of an auxiliary | assistant nozzle.

A fifth invention is characterized in that the carrier is provided with a latest data deletion switch for deleting an electrical signal related to the air flow velocity data stored in the storage device by the immediately preceding operation. It is an injection direction display apparatus of the auxiliary | assistant nozzle of the air jet room as described in these.

According to a sixth invention, the air jet room according to the fourth or the fifth invention is characterized in that the storage device can store an electrical signal related to the air flow rate data for each operation of a data storage switch plural times. The auxiliary nozzle jet direction display device of

A seventh invention according to the sixth invention is characterized in that the carrier is provided with an all data deletion switch for deleting an electrical signal related to the air flow velocity data stored for a plurality of times stored in the storage device. The jet direction display device of the auxiliary nozzle of the air jet room of

An eighth invention is the injection direction display device for the auxiliary nozzle of the air jet room according to any one of the first to seventh inventions, wherein the individual display is a circular analog meter type.

A ninth invention is the injection direction display device of the auxiliary nozzle of the air jet room according to any one of the first to seventh inventions, wherein the individual display is a bar graph type.

The tenth invention is the display device according to any one of the first to seventh inventions, wherein the reference measurement data stored in the storage device is graphically displayed on the two-dimensional display together with the individual display. The jet direction display device of the auxiliary nozzle of the air jet room of

In the first invention, the carrier movable along the ridge is movable while being positioned in the airflow guide groove, and the back portion, the central portion, and the opening in the same cross section of the groove. An air flow rate detection device is arranged at the side of which the tips are located. Those air flow rate detectors convert the air flow rate into an electrical signal by means of a pressure-to-electricity converter. The two-dimensional display device can be configured to be small and lightweight because the flow velocity is graphically displayed at a predetermined position individually based on these electrical signals, so it is suitable for portable use and use in a textile factory. Being suitable, there is an advantage that the first object, which is the basic object of the present invention, can be achieved.
In the second to tenth inventions, in addition to the first object which is the basic object of the present invention, other objects can be achieved, but at least the first object can be achieved. It belongs to the technical scope.

In the second invention, as in the first invention, the air flow velocity data for each air flow velocity detection device is individually displayed on the two-dimensional display device based on the output from the pressure-electricity conversion device. There is an advantage that the first object, which is the basic object, can be achieved.
Furthermore, in the second aspect of the invention, the display of the air flow velocity corresponding to the air flow velocity detecting device disposed at the central portion of the airflow guide groove is disposed at the central portion of the two-dimensional display and at the back and opening side. Since the display of the air flow velocity corresponding to the air flow velocity detection device is arranged on both sides of the central portion, it is easy to recognize that the arrangement is viewed from the main nozzle side or the non-main nozzle side. The present invention is advantageous in that the jetting direction of the auxiliary nozzle can be easily recognized, and the second object of the present invention can be achieved.

In the third invention, as in the first invention, the air flow velocity data for each air flow velocity detecting device is individually displayed on the two-dimensional display device based on the output from the pressure-electricity conversion device. There is an advantage that the first object, which is the basic object, can be achieved.
Furthermore, in the third invention, since an average value, an intermediate value, or a value obtained by statistical processing such as a mode value of air flow velocity data acquired by the air flow velocity detector is used as the air flow velocity data, sudden occurrence It is possible to achieve the third object, which is a subsidiary object of the present invention, because it is possible to display data based on the air flow velocity conforming to the substance without adopting such air flow velocity data.

In the fourth invention, as in the first invention, the air flow velocity data for each air flow velocity detecting device is individually displayed on the two-dimensional display device based on the output from the pressure-electricity conversion device. There is an advantage that the first object, which is the basic object, can be achieved.
Furthermore, in the fourth invention, since the air flow velocity data statistically processed by the statistical processing device is stored in the storage device by the operation of the data storage switch, the measured air flow velocity data can be easily stored. There is an advantage that the fourth objective, which is the secondary objective of

In the fifth invention, as in the first invention, the air flow velocity data for each air flow velocity detection device is individually displayed on the two-dimensional display device based on the output from the pressure-electricity conversion device. There is an advantage that the first object, which is the basic object, can be achieved.
Furthermore, the air flow rate data stored in the storage device can be deleted by operating the nearest data deletion switch. For example, the number of auxiliary nozzles for the entire length of one crucible or the air for a part of auxiliary nozzles Although the flow velocity data is stored, when the measurement data is measured by the injection from the injection nozzle based on the air pressure different from the specification, it is unnecessary data because it can not be used for the determination. Therefore, unnecessary data can be deleted by operating the latest data deletion switch, so that there is an advantage that the fifth object of the present invention can be achieved.

In the sixth invention, as in the first invention, the air flow velocity data for each air flow velocity detecting device is individually displayed on the two-dimensional display device based on the output from the pressure-electricity conversion device. There is an advantage that the first object, which is the basic object, can be achieved.
Further, the storage device can store a plurality of air flow rate data based on the operation of the storage switch. Specifically, ejection direction data of a plurality of auxiliary nozzles can be stored. By visualizing and displaying on the two-dimensional display the display based on the plurality of air flow velocity data, it is possible to sequentially confirm the injection directions of the plurality of auxiliary nozzles, thereby achieving the sixth object of the present invention. There are advantages that can be done.

In the seventh invention, as in the first invention, the air flow velocity data for each air flow velocity detecting device is individually displayed on the two-dimensional display device based on the output from the pressure-electricity conversion device. There is an advantage that the first object, which is the basic object, can be achieved.
Furthermore, by operating the all data deletion switch, a plurality of air flow rate data can be deleted at one time, and unnecessary data can be deleted at once, so that there is an advantage that the seventh object of the present invention can be achieved. .

In the eighth invention, as in the first invention, the air flow velocity data for each air flow velocity detecting device is individually displayed on the two-dimensional display device based on the output from the pressure-electricity conversion device. There is an advantage that the first object, which is the basic object, can be achieved.
Furthermore, since the display in the display device is a circular analog meter type, the magnitude of the flow velocity can be easily recognized and the comparison thereof can be easily made, so that the ejection direction of the auxiliary nozzle can be easily discriminated. There is an advantage that the objective 8th objective can be achieved.

In the ninth invention, as in the first invention, the air flow velocity data for each air flow velocity detecting device is individually displayed on the two-dimensional display device based on the output from the pressure-electricity conversion device. There is an advantage that the first object, which is the basic object, can be achieved.
Furthermore, since the display on the display device is a bar graph type, the magnitude of the flow velocity can be easily recognized and the contrast thereof can be easily compared, so that the ejection direction of the auxiliary nozzle can be easily discriminated. There is an advantage that the eighth object can be achieved.

In the tenth invention, as in the first invention, the air flow velocity data for each air flow velocity detecting device is individually displayed on the two-dimensional display device based on the output from the pressure-electricity conversion device. There is an advantage that the first object, which is the basic object, can be achieved.
Furthermore, since the measurement display based on the air flow velocity data measured this time and the reference measurement data as a reference can be displayed on the same two-dimensional display device, the ejection direction of the auxiliary nozzle is determined in comparison with the reference measurement data. As a result, there is an advantage that the ninth object of the present invention can be achieved.

FIG. 1 is a perspective view of a state in which measurement is performed using an injection direction display device of an auxiliary nozzle of an air jet room according to a first embodiment of the present invention. FIG. 2 is a front view of the jet direction display device of the auxiliary nozzle of the air jet room according to the first embodiment of the present invention. FIG. 3 is a plan view of the jet direction display device of the auxiliary nozzle of the air jet room according to the first embodiment of the present invention. FIG. 4 is a bottom view of the jet direction display device of the auxiliary nozzle of the air jet room according to the first embodiment of the present invention. FIG. 5 is a right side view of the jet direction display device of the auxiliary nozzle of the air jet room in the state of being mounted on the crucible according to the first embodiment of the present invention. FIG. 6 is a left side view of the jet direction display device of the auxiliary nozzle of the air jet room in the state of being mounted on the crucible of the first embodiment according to the present invention. FIG. 7 is a rear view of the jet direction display device of the auxiliary nozzle of the air jet room according to the first embodiment of the present invention. FIG. 8 is a cross-sectional view taken along line AA in FIG. 7 of the injection direction display device of the auxiliary nozzle of the air jet room according to the first embodiment of the present invention. FIG. 9 is an enlarged view of a state in which the air flow velocity detection device is positioned in the air flow guide groove. FIG. 10 is an operation explanatory view of the air flow velocity detection device of the injection direction display device of the auxiliary nozzle of the air jet room according to the first embodiment of the present invention. FIG. 11 is a block diagram of a control device of an injection direction display device of the auxiliary nozzle of the air jet room according to the first embodiment of the present invention. FIG. 12 is a flowchart of a control device of the control unit of the jet direction of the auxiliary nozzle of the air jet room according to the first embodiment of the present invention. FIG. 13 is a meter display screen of the jet direction display device of the auxiliary nozzle of the air jet room according to the first embodiment of the present invention, wherein (A) is a display screen during non-measurement and (B) is a display during measurement It is a screen. FIG. 14 is a bar graph display screen of the jet direction display device of the auxiliary nozzle of the air jet room according to the first embodiment of the present invention, in which (A) is a display screen during non-measurement, and (B) is during measurement. It is a display screen. FIG. 15 is a schematic perspective view showing an improved technique of the first prior art. FIG. 16 is a schematic explanatory view of the flow velocity measuring device in the first prior art improved technique, wherein (A) is a layout diagram of the air flow velocity measuring device viewed from the main nozzle side, and (B) is an operation explanatory diagram. is there.

According to the best mode of the present invention, lathers having lateral recesses formed on the woven side are arranged in a weft insertion direction at predetermined intervals to form an airflow guide groove, and the woven side is formed on the woven side. An apparatus for measuring the jet direction of an auxiliary nozzle of an air jet room, wherein weft insertion is performed by injecting an air flow from the auxiliary nozzles arranged at intervals in the oblique weft insertion direction and toward the air flow guide groove,
A carrier capable of moving along the air flow guide groove, an air flow velocity detecting device moving while being located in the air flow guide groove, at least a back portion of the air flow guide groove in the same cross section in the air flow guide groove Direction of the auxiliary nozzles of the air jet room disposed at the central portion and the open side so as to display the air flow velocity data from the air flow velocity detecting devices on separate display devices integrally provided on the carrier In the display device, each of the air flow rate detection devices includes an air flow electrical conversion device that converts the air flow rate into an electrical signal, and the air flow rate converted into the electrical signal is sampled multiple times by operation of a data storage switch A statistical processing is performed by a processing device and stored as respective air flow velocity data, and the display device is a two-dimensional table integrally provided on the carrier. The air flow rate data for each air flow rate detection device stored in the storage device is displayed as a circular analog meter type, and a display facing the air flow rate detection device at the central portion is a central portion of the two-dimensional display device. And the display facing the air flow velocity detecting device at the back and the opening side is displayed on the left and right across the central portion, and an electric signal related to the air flow velocity data stored in the storage device by the last operation. The latest data deletion switch for deleting an all-data deletion switch for deleting electric signals related to the air flow velocity data stored for a plurality of times stored in the storage device is disposed. It is a display device.

First, the mechanical structure of the jet direction display device 100 of the auxiliary nozzle of the air jet room according to the first embodiment will be described with reference to FIGS. 1 to 9.
First, a weir 102 of an air jet room in which the auxiliary nozzle jet direction indicator 100 is used will be described with reference to FIG.
The weirs 102 are provided with air flow guide grooves 108 in which wedging directions D are formed at predetermined intervals on the weaving front side (right side in FIG. 1), and the air flow guide grooves 108 are formed. It is inserted into the upward groove 112 of -110 and firmly fixed to the thread -110 by the weir 114. After the weft yarn 120 is ejected into the air flow guide groove 108 together with the air injection from the main nozzle 118, the auxiliary nozzles 122 arranged at predetermined intervals in the slot 110 are in a diagonal weft insertion direction in a relay manner and The air flow toward the air flow guide groove 108 is injected to perform weft insertion. As shown in FIG. 9, the recess 104 has a substantially vertically standing back wall 124, an upper wall 128 which is a lower edge of a right triangle shaped upper protrusion 126, and an upper side of an inverted right triangle shaped lower protrusion 130. An edge lower wall 132 is formed in the laterally oriented recess 104, and an opening 182 is formed on the woven side. The auxiliary nozzle 122 is rotatably provided at least about its axis with respect to the mounting block 134 fixed to the thread 110, and after the injection direction to the air flow guide groove 108 is determined, the auxiliary nozzle 122 is fixed by the screw 136. . Therefore, the woven front edge of the upper convex portion 126 is formed on the front lower slope 138 which descends downward toward the woven front.

Next, the ejection direction display device 100 for the auxiliary nozzle will be described mainly with reference to FIGS.
The auxiliary nozzle ejection direction display device 100 detects at least the flow velocity of the air flow spouted from the auxiliary nozzle 122 toward the air flow guiding groove 108 by the plurality of air flow velocity detection devices 144, and detects each air flow velocity detected After being converted to Y, the two-dimensional display device has a function of visual display based on the electric signal. In the first embodiment, at least the carrier 142, the air flow velocity detection device 144, the airflow electric signal conversion device 146, the arithmetic device 148, and the two-dimensional display device 150.
When the two-dimensional display device 150 is integrated with the carrier 142, the ejection direction of the auxiliary nozzle 122 can be visualized by two-dimensional display while measuring the air flow velocity, so the ejection direction of the auxiliary nozzle 122 is finely adjusted. There is an advantage that the adjustment result can be confirmed.

First, the carrier 142 will be described.
The carrier 142 is movable along the air flow guide groove 108 of the weir 102 and necessary devices, specifically at least the air flow velocity detection device 144, the air flow electrical signal conversion device 146, the arithmetic device 148, and The two-dimensional display device 150 and the first guide 152 disposed on the front side in the traveling direction are attached. In addition, the 2nd guide body 154 can be arrange | positioned at the advancing direction back side side as needed.
In the first embodiment, the carrier 142 has a rectangular flat plate shape, and the front surface (before weaving) side is substantially flat, and the back surface 156 conforms to the woven front shape of the ridge 102, that is, the front lower inclined surface 138 of the upper convex portion 126. And the display device recess 162 for attaching the two-dimensional display device 150 on the woven side, and the control device recess 168 for storing the control device 164 and the battery 166 on the back surface 156 side. ing. In addition, it is preferable that a permanent magnet be attached to the inclined portion 158 of the carrier 142, and the magnetic force of the permanent magnet causes the carrier 142 to be adsorbed to the crucible 102, thereby stabilizing the state of the carrier 142 at the time of measurement.

Next, the first guiding body 152 will be described.
The first guiding member 152 has a function of holding the forward end of the carrier 142 in the advancing direction at a predetermined position, and in the first embodiment, the leading end of the first guiding member 152 is the same as the second guiding member 154 described later. And the second guide body 154 is formed wider in the lateral direction than the second guide body 154. Specifically, the first guide 152 is a cube-shaped thick plate having a thickness slightly thinner than the heights of the upper and lower portions of the recess 104, and the tip thereof is formed in a semicircular shape so that the air flow The guide groove 108 can be in contact with the back wall 124, and the base thereof is fixed to the lower surface on the anterior side in the traveling direction of the carrier 142. However, the first guide 152 is not limited to the form of the first embodiment, and can be changed in the range in which the above function is exhibited.
With these configurations, the inclined portion 158 of the back surface 156 of the carrier 142 contacts the lower front slope 138 of the ridge 102, and the tip of the first guide 152 and the second guide 154 forms the recess 104. While being guided by the upper wall 128 and the lower wall 132, it can be moved with a light force along the longitudinal direction of the crucible 102. That is, the first guide 152 and the second guide 154 move in the airflow guide groove 108. Usually, the ejection direction display device 100 of the auxiliary nozzle 122 is manually moved to the right in FIGS. 1 and 3. Therefore, in the present specification, unless otherwise specified, the downstream side or the forward direction forward means the right direction in the figure, and the upstream side or the backward direction means the left direction in the figure .

Next, the second guiding body 154 will be described.
The second guiding member 154 has a function of holding the rear end in the direction of movement of the carrier 142 at a predetermined position, and in the first embodiment, the leading end is formed into a size that fits into the airflow guiding groove 108 almost closely. It is done. Specifically, the second guiding member 154 is a cube-shaped piece, the thickness of which is slightly smaller than the height of the upper and lower portions of the recess 104, the tip of which is formed in a semicircular shape, and the air flow guiding The groove 108 can be in contact with the back wall 124, and the base thereof is fixed to the lower surface of the rear end in the traveling direction of the carrier 142.

A scale 172 having the same function as that described in the prior art is disposed below the horizontally long rectangular two-dimensional display device 150 at the lower front of the carrier 142. The scale 172 can be formed by attaching a commercially available scale made of a rigid body or a seal-like scale, or by imprinting or integrally forming the surface of the carrier 142.

Next, the air flow velocity detection device 144 will be described mainly with reference to FIGS. 9 and 10.
The air flow velocity detecting device 144 has a function of detecting the flow velocity of the air flow from the auxiliary nozzle 122, and in the first embodiment, the first pitot tube 174-1, the second pitot tube 174-2, and Three pitot tubes 174-3 are provided. Although the pitot tube may be configured by four or more tubes, it is preferable to use three tubes, as this is disadvantageous in terms of cost. In the first embodiment, the first pitot pipe 174-1, the second pitot pipe 174-2, and the third pitot pipe 174-3 are attached to the side of the first guide body 152 facing the main nozzle 118. . Specifically, the first pitot pipe 174-1, the second pitot pipe 174-2, and the third pitot pipe 174-3 are straight thin tubes, and are disposed on the main nozzle 118 side of the first guiding body 152. Each of the end faces is independently fixed in parallel. The axes thereof are set parallel to a center line CL connecting the center of the inscribed circle IC inscribed in the back wall 124, the upper wall 128, and the lower wall 132. Furthermore, their tips are disposed so as to be located in a plane P orthogonal to the center line CL, in other words, in the same cross section of the airflow guiding groove 108. The first pitot tube 174-1 is disposed in the vicinity of the lower corner portion 176 formed by the back wall 124 and the lower wall 132. The second pitot tube 174-2 is disposed at the center CE of the inscribed circle IC. The third pitot tube 174-3 is disposed in the vicinity of the opening 182 of the recess 104. Therefore, the first pitot tube 174-1, the second pitot tube 174-2, and the third pitot tube 174-3 are arranged along a straight line SL connecting the lower corner 176 and the tip of the upper protrusion 126, It is arranged. The distance L1 between the first pitot tube 174 and the second pitot tube 174-2 and the distance L2 between the second pitot tube 174-2 and the third pitot tube 174-3 are set to be the same. Further, the jet direction line JDL from the nozzle port 183 of the auxiliary nozzle 122 and the straight line SL are set to be approximately perpendicular. Therefore, a part of the jet flow from the nozzle port 183 of the auxiliary nozzle 122 flows into the first pitot pipe 174-1, the second pitot pipe 174-2, and the third pitot pipe 174-3. The flow rate is converted to air pressure and detected. When the injection direction from the nozzle port 183 is appropriate because the injection direction line JDL is directed to the second pitot pipe 174-2 by these arrangement settings, for example, the second pitot pipe The fastest flow velocity is detected by 174-2 and the first pitot tube 174-1 and the third pitot tube 174-3 arranged at equal distances on both sides thereof detect the same flow velocity. Therefore, the detected air flow velocity in the first pitot pipe 174-1, the second pitot pipe 174-2, and the third pitot pipe 174-3 is predetermined at a position away from the nozzle port 183 by the predetermined distance PD. If the relationship between their sizes is such a relationship, the jet flow from the auxiliary nozzle 122 can be estimated to be along the set injection direction line JDL, which is a preferable setting. I can say that. For example, as shown in FIG. 10, the second flow velocity FS-2 of the second pitot tube 174-2 is in the range of the first allowable range AR1, and the first flow velocity FS-1 of the first pitot tube 174-1 And, when the third flow velocity FS-3 of the third pitot tube 174-3 is in the second tolerance range AR2, it is a preferable setting. However, the second flow velocity FS-2, the first flow velocity FS-1, and the third flow velocity FS-3 are not limited to the example shown in FIG.
On the other hand, the first to third flow velocities FS-1 to FS-3 in the first pitot pipe 174-1, the second pitot pipe 174-2 and the third pitot pipe 174-3 at the set predetermined distance PD are The first flow rate FS-1 in the first pitot tube 174-1, the second pitot tube 174-2, and the third pitot tube 174-3 is out of the range of the first tolerance range AR1 or the second tolerance range AR2. If the relationship between the third flow velocity FS-3 and the third flow velocity FS-3 is different from the above, it can be estimated that the injection direction line JDL of the injection flow from the nozzle port 183 deviates from the normal injection direction line JDL.

Next, the airflow electrical signal converter 146 will be described mainly with reference to FIG.
The airflow electrical signal conversion device 146 has a function of converting the flow velocity of the air flow introduced into the air flow velocity detection device 144 into an electrical signal, and in the first embodiment, the first pitot tube 174-1 to the third pitot It comprises a piezoelectric element 184 and an amplifier 186 arranged relative to the other end of the tube 174-3, but can be modified to other devices with similar functions. That is, the air flow that has flowed into the first pitot tube 174-1 to the third pitot tube 174-3 is converted into air pressure inside each of the first pitot tube 174-1 to the third pitot tube 174-3, and the air pressure As a result, the piezoelectric element 184 is deformed and an electrical signal proportional to the amount of deformation is output, so the electrical signal is amplified by the amplifier 186 and output to the control device 164.
In the first embodiment, since the air flow velocity detecting device 144 is constituted by the first pitot pipe 174-1, the second pitot pipe 174-2, and the third pitot pipe 174-3, the first pitot pipe 174- The first piezoelectric element 184-1, the second piezoelectric element 184-2, and the third piezoelectric element 184-3 are connected to each of the first to third pitot tubes 174-3, and further, the first amplifier 186-1, The second amplifier 186-2 and the third amplifier 186-3 are connected.

The controller 164 will now be described with reference to FIG.
The control device 164 has a function of processing an electrical signal corresponding to the flow velocity from the airflow electrical signal conversion device 146 and performing arithmetic processing for displaying on the two-dimensional display device 150.
In the first embodiment, the arithmetic unit 148, the storage unit 190, the data storage switch 192, the screen switching switch 194, the zero point adjustment switch 196, the nearest data deletion switch 198, the all data deletion data switch 202, and the statistical processing unit 204. However, at least a data storage switch 192 and a zero point adjustment switch 196 may be included.
In addition, since the number of switches that can be arranged on the carrier 142 is limited, one switch can be configured to exhibit two functions. For example, in the first embodiment, when pressed momentarily (0.5 seconds or more), it functions as the nearest data delete switch 198, and when it is pressed long, for example, 2 seconds or more, it functions as the all data delete data switch 202. It is configured.

First, the arithmetic unit 148 will be described.
The arithmetic unit 148 has a function of performing a logical operation, and in the first embodiment, an arithmetic circuit 188, a so-called microprocessor, is used. The microprocessor reads the information into the RAM at any time based on the program stored in the ROM (not shown) and executes the flowchart based on FIG. 12, for example, and executes the predetermined processing while writing or erasing the information. Have.

Next, the storage device 190 will be described.
The storage device 190 has a function of storing an electrical signal related to the flow velocity data from the arithmetic circuit 188, and in the first embodiment, in particular, stores the flow velocity data converted into the electrical signal in the airflow electrical signal converter 146. A storage circuit, such as an EEPROM or a flash memory, which has a function to erase the stored electric signal flow velocity data is used. The storage device 190 can also be provided with a reference measurement data storage area 200 to store reference measurement data. As the reference measurement data, for example, when the weft insertion is in a very good state, the flow velocity of the jet flow from the auxiliary nozzle 122 in that state is measured by the auxiliary nozzle injection direction display device 100. Or, it is stored in the storage area of the personal computer. As described above, by storing the flow velocity data of the injection flow in a state in which the weft insertion is good, when adjusting the injection direction of the auxiliary nozzle 122 thereafter, the adjustment is performed by adjusting to the same state. There is an advantage to be easy.

The data storage switch 192 will now be described.
When the data storage switch 192 is pressed, the arithmetic circuit 188 generates a first electric signal from the piezoelectric element 184 (the first piezoelectric element 184-1 to the third piezoelectric element 184-3) when the data storage switch 192 is pressed. A first amplified electrical signal ES-1 to a third amplified electrical signal ES-3 obtained by amplifying the S1 to the third electrical signal S3 by the amplifier 186 (the first amplifier 186-1 to the third amplifier 186-3) It has a function of taking in as flow velocity data of the pitot tube 174-1 to the third pitot tube 174-3 and then storing them in the storage device 190 respectively.
In the first embodiment, although it is possible to store the flow velocity data measured first immediately after the data storage switch 192 is pressed, it is also possible to store the flow velocity data statistically processed by the later described statistical processing device 204 as an electric signal. Store in 190.

Next, the screen switching switch 194 will be described.
The screen switching switch 194 has a function of selecting a screen to be displayed on the two-dimensional display device 150. In the first embodiment, a circular analog meter type screen G1 in FIG. 13 and a bar graph screen G2 in FIG. Each time the screen switching switch 194 is pressed, the screen is switched to the circular analog meter type screen G1 and the bar graph screen G2.

Next, the zero point adjustment switch 196 will be described.
The zero point adjustment switch 196 has a function of storing the output of the airflow electric signal conversion device 146 in a state where the zero point adjustment switch 196 is pressed as a zero level in the storage circuit 190. In the first embodiment, the first amplified electrical signal ES-1 to the third amplified electrical signal ES which are the outputs of the first amplifier 186-1 to the third amplifier 186-3 when the zero point adjustment switch 196 is pressed. Each -3 is stored as a zero point.

Next, the latest data deletion switch 198 will be described.
When the latest data deletion switch 198 is pressed, the arithmetic circuit 188 deletes the flow velocity data stored in the storage device 190 immediately before it, in other words, performs processing for deleting the flow velocity data from the storage device 190. This is to enable re-measurement and storage when the operator determines that the flow velocity data stored immediately before the position is not consistent.

Next, the all data deletion data switch 202 will be described.
When the all data deletion data switch 202 is pressed, the arithmetic circuit 188 deletes all the flow velocity data stored in the storage device 190. This is to be performed before the operator starts the measurement of the flow velocity so as not to display the previous flow velocity data by mistake. In the first embodiment, when the zero point adjustment switch 196 and the data deletion switch 198 are simultaneously pressed long, the all data deletion data switch 202 is selected. In this case, the long press is, for example, 2 seconds or more, and in the case of less than 2 seconds, no function is exhibited.

Next, the statistical processing device 204 will be described.
The statistical processing device 204 has a function of performing statistical processing on the flow velocity data from the airflow electrical signal conversion device 146 and outputting it. In the first embodiment, step S4 described later corresponds to the statistical processing device 204. However, the statistical processing device 204 can also be configured to have the same function by an electrical circuit. In the first embodiment, the time for which the data storage switch 192 is pressed is assumed to be, for example, at least 0.5 seconds, and during that time, the first pitot tube 174-1 to the third pitot tube are plural times, for example, 10 to 100 times. The flow rate from 174-3, in other words, the first amplified electrical signal ES-1 to the third amplified electrical signal ES-3 from the first amplifier 186-1 to the third amplifier 186-3 is sampled, and the sampled data Are statistically processed to be output as an electrical signal related to the flow velocity in the first pitot tube 174-1 to the third pitot tube 174-3. The jet flow from the auxiliary nozzle 122 is high speed, and is considered to be under a turbulent state since it advances to pierce the surrounding stationary air. Therefore, the air velocity also changes rapidly like the breath-taking phenomenon at the same place. Therefore, in the case of instantaneous flow velocity data, the flow velocity of the injection flow from the auxiliary nozzle 122 may not be correctly reflected, and in the case of statistical processing, for example, averaging, sudden abnormal flow velocity data is leveled. This is because that. As the statistical processing, in addition to the average value processing, intermediate value processing or mode value processing can be used. The proper use of these can be made by measuring flow velocity data and taking into consideration the occurrence of outliers, etc., to select the most suitable statistical processing.

Next, the two-dimensional display device 150 will be described.
The two-dimensional display device 150 has a function of at least graphically displaying and visualizing the flow rate data stored in the storage device 190 based on the output from the control circuit 164 (arithmetic circuit 188). As graphic display, gauge display, graph display, etc. can be selected. In the first embodiment, the two-dimensional display device 150 is a small-sized standardized liquid crystal display device 206, but a known two-dimensional display device 150 such as electroluminescence, a CRT, or a printer can be used. Further, in the first embodiment, it is an essential requirement that the two-dimensional display device 150 be integrated with the carrier 142. This is because the injection direction of the auxiliary nozzle 122 is confirmed on the spot, and if the injection direction is abnormal, adjustment can be made on the spot.

  As display on the two-dimensional display device 150, it is possible to select a circular analog meter type screen G1 shown in FIG. 13 or a bar graph type screen G2 shown in FIG. The circular analog meter type screen G1 shown in FIG. 13 will be described. The second analog meter 212-2 related to the second pitot tube 174-2 is at the center, and the third analog meter 212 related to the third pitot tube 174-3 is on the left side. The third analog meter 212-1 related to the first pitot tube 212-1 can be displayed on the right side thereof. In this case, it can be easily understood that the flow velocity state of the air flow in the recess 104 when the air flow guide groove 108 is viewed from the downstream side in the weft insertion direction, that is, from the right side. Since the first analog meter 212-1 to the third analog meter 212-3 have the same configuration, the meter hand 214-1, the circular scale portion 216-1, numerical values can be described as a representative of the first analog meter 212-1. A display unit 218-1 and a unit display unit 222-1 are provided. In FIG. 13, (A) shows a state immediately after pressing the zero point adjustment switch 196, and the first meter hand 214-1 to the third meter hand of the first analog meter 212-1 to the third analog meter 212-3. 214-3 points to the zero point at the 8 o'clock position on the watch. In addition, 0.0 is displayed on the first numerical value display unit 218-1 to the third numerical value display unit 218-3, and the pressure is applied to the first unit display unit 222-1 to the third unit display unit 222-3. KPa is displayed. Therefore, as shown in FIG. 13, the first analog meter 212-1 displayed at the right end of the two-dimensional display device 150 is an air flow velocity measured by the first pitot tube 182-1 near the lower corner 176. The first meter hand 214-1 is rotated and displayed in correspondence with. The second analog meter 212-2 displayed at the center of the two-dimensional display 150 corresponds to the air flow velocity measured by the second pitot tube 182-2 disposed at the center CE of the inscribed circle IC in the recess 102. The second meter hand 214-2 is rotated and displayed. The third analog meter 212-3 displayed at the left end of the two-dimensional display device 150 corresponds to the third air flow rate measured by the third pitot tube 182-3 disposed near the upper side of the opening 182 of the recess 102. The 3-meter needle 214-3 is rotated and displayed. Along with these meter hand displays, digital numerical values corresponding to the amount of rotation of the first meter hand 214-1 to the third meter hand 214-3 are displayed on the first numeral display portion 218-1 to the third numeral display portion 218-3. Is displayed.

Furthermore, as a display on the two-dimensional display device 150, the bar graph screen G2 shown in FIG. 14 can be selected. A first bar graph 224-1 corresponding to the first pitot tube 174-1 is displayed at the right end, and a numerical value related to the flow velocity corresponding to the first bar graph is displayed below the first bar graph 224-1 Is displayed. A second bar graph 224-2 corresponding to the second pitot tube 174-2 is displayed in the center, and a second numerical value display unit 226-2 corresponding to the second bar graph 224-2 is displayed below the second bar graph 224-2. . A third bar graph 224-3 corresponding to the third pitot tube 174-3 is displayed at the left end, and a third numerical value display portion 226-3 is displayed below the third bar graph 224-3.
FIG. 14A shows a state immediately after pressing the zero point adjustment switch 196, and the heights of the first bar graph 224-1 to the third bar graph 224-3 are substantially zero. Further, 0.0 is displayed on the first numerical value display section 226-1 to the third numerical value display section 226-3. When the data storage switch 192 is pressed, the heights of the bars in the first bar graph 224-1 to the third bar graph 224-3 are displayed at a height proportional to the measured flow velocity, and the first numerical value is displayed. On the display unit 218-1 to the third numerical value display unit 218-3, numbers corresponding to the heights of the bars of the first bar graph 224-1 to the third bar graph 224-3 are displayed.

Next, the USB connector 208 will be described.
Connect a USB memory or the like to the USB connector 208 connected to the control device 164, download the flow velocity data stored in the storage circuit 190, or move it to a storage device of a separately installed PC via a wireless communication device or the like. Can be displayed on a separate two-dimensional display. Also, reference measurement data stored in another personal computer can be stored in the reference measurement data storage area 200 via the USB connector 208. The USB connector 208 is disposed at a predetermined position on the outer surface of the carrier 142.

Next, a method of using the air guide state display device 100 in the first embodiment will be described with reference to the flowchart shown in FIG. In the first embodiment, the ejection directions of the plurality of auxiliary nozzles 122 arranged along the weir 102 are measured. If the weave width is 190 cm, it will be about 25 and the flow velocity data at 25 locations will be stored.
The present air guidance status display device 100 is generally used in the on-room, but can also be used with the weir 102 removed from the air jet room. In the first embodiment, an example used in the on-room will be described. For example, it is an example in the case where it is determined whether or not the state of the auxiliary nozzle 122 is normal when the stop due to the weft insertion failure increases rapidly. Therefore, after stopping the air jet room, after manually moving the weir 102 to the retracted position farthest from the front of weaving, it becomes stationary. The warp is then loosened and pushed down until the lowermost position of the weir 102 so that the movement of the carrier 142 is not impeded. Note that this measurement may be performed at the timing of the upswing. Then, when it is determined that the auxiliary nozzle 122 is abnormal, the screw 136 is loosened and rotated about its axis to adjust the ejection direction from the nozzle port 183 and fixed again by the screw 136 or the auxiliary nozzle 122 is replaced Used to adjust the injection direction of the replaced auxiliary nozzle 122 to be optimal.

Next, the first guide 152 and the second guide 154 are inserted into the airflow guide groove 108, and the inclined portion 158 of the back surface 156 is applied to the front lower slope 138 of the weir 102 to first measure the auxiliary nozzle 122. Align. That is, since the zero indication on the scale 172 is the tip position of the pitot tube 182, the carrier 142 is moved along the weir 102 so that the auxiliary nozzle 122 is positioned a predetermined distance upstream from that position.
Next, in a state where the air flow is not jetted from the auxiliary nozzle 122, the zero point adjustment switch 196 is pressed to exert the zero point adjustment function. That is, the first piezoelectric element 184-1 to the third piezoelectric element 184-3 at the time when the zero point adjustment switch 196 is pressed, and accordingly, the first amplified electrical signal ES1 to the third amplified electrical signal ES-3 are set as the zero point. It is stored in the storage device 190.
In addition, the procedure of the preparatory work so far can be replaced.

Next, the method of use will be described with reference to the flowchart of FIG.
First, in step S1, it is determined whether the screen switching switch 194 is pressed. If it is pressed, the process proceeds to step S2, and if it is not pressed, the process proceeds to step S3.

In step S2, the screen is switched to the circular analog meter type screen G1 of FIG. 13 or the bar graph type screen G2 of FIG. 14 according to the preference or work of the operator, and the process proceeds to step S3. That is, when the screen is the analog meter type screen G1, the screen is switched to the bar graph screen G2, and when the screen is the bar graph type screen G2, the mode is switched to the analog meter type screen G1. Of course, it is not necessary to switch the screen.

Next, air set to a predetermined pressure is injected from the auxiliary nozzle 122 at the supply source. This air pressure setting is very important because the wall thickness of the auxiliary nozzle 122 is so thin that the direction of injection is changed by the supply pressure.
As a result, the air flow ejected from the auxiliary nozzle 122 travels along the injection direction line JDL and advances from the opening 182 to the air flow guide groove 108, and a part of this high-speed injection flow is the first pitot tube 174-1. Each of the velocity heads is converted into a pressure head, and the pressure heads are respectively used by the first piezoelectric element 184-1 to the third piezoelectric element 184-3. And outputs the first electric signal S1 to the third electric signal S3 in proportion to. The first to third electric signals S1 to S3 are amplified by the first to third amplifiers 186-1 to 186-3, respectively, to obtain the first to third amplified electric signals ES-1 to ES-3. Are output to the arithmetic circuit 188 as

In step S3, it is determined whether the data storage switch 192 is pressed. If it is pressed, the process proceeds to step S4, and if it is not pressed, the process proceeds to step S5.

In step S4, flow velocity data is fetched. In other words, after the first amplified electrical signal ES-1 to the third amplified electrical signal ES-3 are sampled a predetermined number of times, for example, 20 times with a predetermined time lag, and their flow velocity data are statistically processed , And proceeds to step S6. In the first embodiment, an average value is adopted as statistical processing. That is, in the case of storing data, it is ruled that the data storage switch 192 is pressed for, for example, one second or more. In the first embodiment, each of the first amplified electric signal ES-1 to the third amplified electric signal ES-3 from the airflow electric signal conversion device 146 is sampled 20 times in 0.5 seconds, and is statistically processed. That is, the average value AV-1 of the first amplified electrical signal ES-1, the average value AV-2 of the second amplified electrical signal ES-2, and the average value AV-3 of the third amplified electrical signal ES-3. Hold each temporarily.

In step S6, the first average value AV-1 to the third average value AV-3 suspended in step S4 are stored in the storage device 190, and then the process proceeds to step S5.

  In step S5, it is determined whether or not the latest data deletion switch 198 is pressed. If it is pressed, the process proceeds to step S7. If it is not pressed, the process proceeds to step S8.

After the first average value AV-1 to the third average value AV-3, which are the flow velocity data stored in the previous step S6, are deleted in step S7, the process proceeds to step S8.

  In step S8, if the all data deletion data switch 202 is pressed, the process proceeds to step S9, and if not, the routine ends. Even if the routine is ended, it means that the process in steps S1 to S9 has made one round, and not all the processes are ended, and the process returns to step S1 again.

In step S9, after all flow rate data stored in the storage device 190 is deleted, the routine is ended. That is, as described above, the process returns to step S1.

When the routine is finished without pressing the latest data deletion switch 198 and the all data deletion data switch 202, the flow velocity data of the first auxiliary nozzle 122 is stored in the storage device 190. Based on the stored flow velocity data, the flow velocity data of the two-dimensional display device 150 is transmitted from the first meter needle 214-1 to the third meter needle 214 in the first analog meter 212-1 to the third analog meter 212-3. It is displayed as a rotation amount of -3. Therefore, the worker sees the amount of rotation of the first meter hand 214-1 to the third meter hand 214-3 in the first analog meter 212-1 to the third analog meter 212-3, and determines the flow velocity value and their values. It is possible to determine whether the injection direction of the auxiliary nozzle 122 is normal or abnormal based on the relativity. That is, when the injection direction of the auxiliary nozzle 122 is suitable, for example, as shown in FIG. 10, the central flow of the injection flow from the auxiliary nozzle 122 flows into the second pitot pipe 174-2 and the first pitot pipe 174-. Since the diffusion flow flows into the first and third pitot tubes 174-3, the flow velocity is the highest in the flow velocity appearing in the second analog meter 212-2 and a value within a predetermined range is displayed. As shown in FIG. 13 (B), the flow velocity appearing in the first analog meter 212-1 and the third analog meter 212-3 is relatively low with respect to the flow velocity of the second analog meter 212-2, and Indicates a value in a predetermined range of degree. On the other hand, for example, when the third analog meter 212-3 shows the highest flow velocity, the injection direction of the auxiliary nozzle 122 is directed to the third pitot tube 174-3. In this case, after the auxiliary nozzle 122 is slightly rotated about its axis so that the highest flow rate appears in the second analog meter 212-2, and the flow rate value is adjusted to be within a predetermined range, Tighten and fix the screw 136 to complete the adjustment.
Even when a new auxiliary nozzle 122 is replaced, the injection direction is determined and fixed to the mounting block 134 in the same manner.

  Next, the carrier 142 is slid and moved to a position facing the next auxiliary nozzle 122. That is, after the position of the auxiliary nozzle 122 is moved to be positioned on the predetermined scale of the scale 172, pressure air of a predetermined pressure is supplied to the auxiliary nozzle 122 to start the injection, and then the data storage switch 192 is pressed. In the same manner as described above, it is determined whether or not the injection direction of the auxiliary nozzle 122 is correct, adjustment is necessary if necessary, and if not necessary, the next auxiliary nozzle 122 is measured. This operation is repeated, and the measurement adjustment operation of the injection direction of all the auxiliary nozzles 122 is completed. In the case where the weft insertion defect frequently occurs at the position of the auxiliary nozzle 122 at a specific location, the injection direction of only the auxiliary nozzle 122 may be similarly adjusted, and the adjustment of the other auxiliary nozzles may not be performed.

  If the nearest data deletion switch 198 is pressed and the all data deletion data switch 202 is not pressed, the carrier 142 is not moved, and then the data storage switch 192 is pressed, and the deleted data is measured at the position measured. Again, measure and store flow rate data.

  If the nearest data deletion switch 198 is not pressed and the all data deletion data switch 202 is pressed, all the flow velocity data stored in the storage unit 190 are erased, so the carrier 142 is moved to the first auxiliary nozzle position. Return and perform measurement again.

  Furthermore, when the reference measurement data is stored in the reference measurement data storage area 200 in the storage circuit 190, the first meter hand 214-1 to the third meter hand at the time of measurement are displayed as indicated by the dashed line in FIG. The first reference measurement meter needle 228-1 to the third reference measurement meter needle 228-3 can be displayed together with 214-3. In this case, since the newly measured meter needle and the reference measurement meter needle can be compared on the same screen, there is an advantage that the judgment of the ejection direction of the auxiliary nozzle 122 becomes easier.

100 Air Guidance Status Display
102 筬
104 Recess in horizontal direction
106 Awaha
108 Air flow guide groove
122 Auxiliary nozzle
142 career
144 Air flow rate detector
146 Air flow electrical signal converter
150 Two-dimensional Display
174-1 First Pitot Tube
174-2 second pitot tube
174-3 Third Pitot Tube
182 opening
184-1 First piezoelectric element
184-2 Second Piezoelectric Element
184-3 Third Piezoelectric Element
186-1 first amplifier
186-2 Second amplifier
186-3 third amplifier
188 arithmetic circuit
190 storage device
191 Reference measurement data storage area
192 data storage switch
198 Recent Data Delete Switch
202 All data deletion switch
204 Statistical Processing Unit

Claims (10)

An air flow guide groove is formed by arranging in a weft insertion direction at predetermined intervals a weft wing having a transversely oriented recess having an opening on the woven front side by a generally vertical back wall, an upper wall and a lower wall. In an air jet room in which weft insertion is performed by injecting an air stream directed obliquely to the air flow guide groove from an auxiliary nozzle arranged at a predetermined interval on the weaving side along a weir and at an oblique weft insertion direction A device for measuring the injection direction of the auxiliary nozzle,
The apparatus for measuring the injection direction of the auxiliary nozzle is provided on a carrier movable along the air guiding groove, and includes an air flow velocity detecting apparatus which moves while being located in the air guiding groove.
The air flow rate detecting device, in the same transverse plane of the air flow guide groove, at least the central portion of the air flow guide groove, inner portion positioned on the back wall and the lower wall side of the central portion, and , than the central portion is disposed in an opening of the upper wall side and the opening side,
The air flow rate detection device includes an air flow electrical conversion device that converts air flow rate into an electrical signal,
Air jet flow velocity data from each of the air flow velocity detecting devices are individually displayed on a display device integrally provided on the carrier In the individual display on the display device, the display facing the air flow velocity detection device at the central portion is disposed at the central portion of the two-dimensional display device, and the display facing the air flow velocity detection device at the back and the opening side The apparatus as claimed in claim 1, wherein the two-dimensional display unit is displayed on the left and right sides of the central portion of the two-dimensional display unit. The air jet room according to claim 1 or 2, wherein a statistical processing device for statistically processing an electrical signal related to the air flow velocity data sampled a plurality of times is disposed on the carrier by operation of a data storage switch. Auxiliary nozzle jet direction display device. 4. The apparatus according to claim 3, wherein a storage unit for storing an electrical signal related to the air flow velocity data subjected to the statistical processing unit is disposed on the carrier. . 5. The air jet room according to claim 4, wherein the carrier is provided with a latest data deletion switch for deleting an electrical signal related to the air flow velocity data stored in the storage device by a previous operation. Auxiliary nozzle injection direction display device. The apparatus according to claim 4 or 5, wherein the storage device can store an electrical signal related to the air flow rate data for each operation of a data storage switch a plurality of times. . The air jet room auxiliary nozzle according to claim 6, wherein the carrier is provided with an all data deletion switch for deleting an electrical signal related to the air flow velocity data stored for a plurality of times stored in the storage device. Injection direction display device. The said separate display is a circular analog meter type, The injection direction display apparatus of the auxiliary | assistant nozzle of the air jet room in any one of the Claims 1 thru | or 7 characterized by the above-mentioned. The said separate display is a bar graph type, The injection direction display apparatus of the auxiliary | assistant nozzle of the air jet room in any one of the Claims 1 thru | or 7 characterized by the above-mentioned. 8. The auxiliary nozzle for an air jet room according to any one of claims 4 to 7, wherein the reference measurement data stored in the storage device is displayed graphically on the two-dimensional display together with the individual display. Injection direction display device.

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