JP2008038329A - Multiple-color weft inserting device of fluid jet loom - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the operation rate of a multiple-color fluid jet loom by suppressing the frequency of the stop of the loom which is caused by the detection signal of yarn supply abnormality. <P>SOLUTION: The multiple-color weft inserting device of a fluid jet loom includes at least three weft supply lines each having a weft feeding package, a weft length measurement storage device, a weft insertion nozzle and a yarn feed sensor, and is provided with a weft-insertion controlling device. The weft-insertion controlling device performs grouping of a plurality of weft supply lines of a number smaller than the number of total weft supply lines to actually hold the weft as a group to hold the same kind of weft, performs multiple-color weft insertion in accordance with a predetermined weft-insertion pattern using the grouped weft supply lines and other weft supply lines, and performs the insertion of weft of the kind corresponding to the group while successively changing the weft supply lines operating in the group. When the weft supply sensor detects the weft supply abnormality in either one of the weft supply lines in the group, the line is excluded and the weft insertion is continued only by using the other lines in the group. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a multi-color weft insertion device for a fluid jet loom in which wefts of different types are inserted according to a predetermined weft insertion pattern.

  A multi-color weft insertion device of a fluid jet loom includes a weft supply system having a yarn feeding package, a weft length measuring and storing device, a weft inserting nozzle, and a yarn feeding sensor disposed upstream of the weft length measuring and storing device. The wefts of each weft supply line are conveyed to the warp opening and inserted by weft injection from the respective weft insertion nozzles ejected according to a predetermined weft insertion pattern.

  The yarn feeding sensor detects yarn feeding abnormality such as yarn breakage of the yarn feeding package or the completion of weft consumption, and outputs a detection signal to the weft insertion control device, and the loom stops each time. For this reason, in the case of wefts with low strength, wefts with a lot of fluff, short wefts with high bulk, etc. in the yarn supply package, abnormalities in yarn supply are frequently detected, the loom stops, and the loom operation rate decreases. At the same time, a stop stage occurs and the quality of the woven fabric is impaired.

In order to suppress frequent stoppage of the loom, and to suppress a decrease in the loom operation rate and occurrence of a stop stage, in the publication of Patent Document 1, a multicolor weft insertion device is replaced with a single color weft insertion device, that is, all the weft supply systems Used as a weft insertion device for supplying the same type of weft, the weft supply system to be inserted is sequentially changed, and the weft supply system in which an abnormality in the supply such as thread breakage is detected The loom continues to operate without being stopped until it is excluded from the change and all the weft supply system yarn feed sensors detect the yarn feed abnormality.
Japanese Patent No. 2673447

  However, in the apparatus of Patent Document 1, when weaving a multi-colored woven fabric in which different types of wefts are inserted, different types of wefts are set in each weft supply system. Each time the yarn is stopped based on a yarn feeding abnormality detection signal from a yarn feeding sensor of the weft supply system, a decrease in the loom operating rate and a stop stage of the woven fabric occur.

  In view of the above-described problems of the prior art, the object of the present invention is to provide yarn feeding such as yarn breakage of a yarn feeding sensor in a multicolor fluid jet loom in which different types of wefts are inserted according to a predetermined weft insertion pattern. An object of the present invention is to reduce the number of loom stops based on an abnormality detection signal, thereby improving the loom operating rate and obtaining a high-quality woven fabric without a stop stage.

  The present invention has been made to achieve the above object, and includes a yarn feeding package, a weft length measuring and storing device, a weft insertion nozzle, and a yarn feeding sensor disposed upstream of the weft length measuring and storing device. A multi-color weft insertion device of a fluid jet loom in which weft insertion from each weft supply sequence is inserted according to a predetermined weft insertion pattern, and a weft insertion control device is provided. The weft insertion control device sets a plurality of weft supply lines smaller than the total number of weft supply lines on which wefts are actually set as a group in which the same type of wefts are set, and the plurality of grouped weft supply lines And other weft supply lines perform multi-color weft insertion according to a predetermined weft insertion pattern, and weft insertion of the type of weft corresponding to the group while sequentially changing the weft supply lines operating in the group When a yarn feed sensor detects a yarn feed abnormality in one of the weft supply lines in the group, weft insertion of the type of weft corresponding to the group is excluded only in the other line in the group, excluding the line (Claim 1).

  Further, the weft insertion control device aims at the grouping, and for other weft supply series, one or more other groups, or one or more single weft supply series not constituting a group, or the other The operation mode of the weft insertion in all the weft supply systems can be changed by setting as any one of the group and the combination of the single weft supply systems and changing the number of weft supply systems constituting the group. At the same time, in each group and a single weft supply system, the types of wefts to be set are different from each other (claim 2).

  The weft insertion control device further includes a setting device for setting the operation mode of the weft insertion. The setting device can individually select a weft supply system and groups a plurality of selected weft supply systems. A first function and a second function for setting the selected weft supply system as a single weft supply system are provided.

  Further, the weft insertion control device includes a storage device and a setting device for storing a plurality of wetting operation modes, and the setting device selectively sets a predetermined operation mode from a plurality of operation modes.

  Further, the setting device includes a display screen provided with respective display areas corresponding to all the weft supply series, and the respective display areas corresponding to the respective weft supply series of the same group are all the same color. It is displayed in a color different from the color of the other weft supply series.

  Further, the display areas corresponding to the weft supply lines that are excluded due to the detection of the yarn feeding abnormality in the group are displayed in the same color and in different forms with respect to the weft supply lines that are sequentially changed. Item 6).

  Furthermore, a remaining number monitoring means is provided, which means that the number of weft supply lines in the group for which weft insertion is continued is determined by the exclusion of the weft supply series upon detection of a yarn feeding abnormality in the group. When the remaining number is reached, a loom operation stop signal is output (claim 7).

  Further, a manually operated return means is connected to the weft insertion control device, and the weft insertion control device corresponds to the signal output from the return means, the excluded weft supply series corresponding to the group weft weft. Return to ON (Claim 8).

  According to the first aspect of the present invention, in the multi-color weft insertion device of the fluid jet loom, the weft insertion control device sets a plurality of weft supply systems as a group, and sequentially switches the weft supply systems operating in the group. When weft insertion of the type of weft corresponding to is performed and the yarn feed sensor detects a yarn feed abnormality in any of the weft supply lines in the group, only the other line in the group excludes the line. Since weft insertion of the type of weft corresponding to the group is continued, even if a yarn feed abnormality such as yarn breakage of the yarn feed package or completion of weft consumption is detected in the group weft supply series, the weft supply in the normal weft supply series Will continue. Therefore, the loom is prevented from being stopped every time an abnormality in yarn feeding is detected, the loom operating rate is improved, and a high-quality woven fabric can be obtained.

  According to the second aspect, since the operation mode of the weft insertion in the entire weft supply system can be changed, the operation mode can be changed to the operation mode of the weft insertion suitable for the weaving condition, and the stop caused by the abnormality detection of the yarn feeding Can be suppressed. In other words, even if wefts with low strength, wefts with a lot of fluff, wefts with high bulkiness and short lengths, etc. are provided in a single weft type supply package, a plurality of weft supply series of the weft types are prepared and grouped together. The weft insertion of the wefts is sequentially changed, and when an abnormality in the yarn feeding is detected, the corresponding weft insertion can be continued only with the normal weft supply system.

  According to claim 3, since the setting device can individually select the weft supply system, it is possible to change the operation mode of the weft insertion according to the change of the weaving conditions, and the yarn supply package. After setting, the weft supply series may be grouped. Therefore, when setting the yarn supplying package, it is not necessary to specify the weft supply system based on the type of weft, and it is not necessary to re-work the yarn supplying package due to a setting error. Also, one or more yarn supply packages that have been set up during the previous weaving can be used.

  According to the fourth aspect, since the setting device selectively sets a predetermined operation mode from a plurality of operation modes, it is possible to change the operation mode of the weft insertion accurately and easily with the change of the weaving conditions. .

  According to the fifth aspect, the display areas corresponding to the weft supply lines of the same group are all displayed in the same color and different from the colors of the other weft supply lines. Grouping of the weft supply series can be confirmed, and setting errors can be avoided.

  According to the sixth aspect of the present invention, the display areas corresponding to the weft supply lines that are excluded due to the detection of the yarn feeding abnormality in the group are displayed in the same color and in different forms with respect to the weft supply lines that are sequentially changed. Therefore, the excluded weft supply line can be identified instantly and easily from the color vision, and the yarn supply package that needs to be repaired or replaced can be accurately known. In addition to using flashing, changing illuminance, symbols, pictures, etc., as a method of displaying the weft supply series that are sequentially changed in the display area, the lamp corresponding to each weft supply series is used as the display area, Displayed by lighting or blinking of the lamp.

  The weft length measuring and storing device has a rotating yarn guide and a motor that drives the rotating yarn guide, and the weft from the yarn supply package is inserted into the rotating yarn guide, and the motor rotates the rotating yarn guide. As a result, the weft is wound around the storage portion of the weft length measuring storage device. The number of weft supply lines that continue weft insertion decreases due to the exclusion of the weft supply series accompanying the detection of a yarn feeding abnormality in the group. However, to continue weft insertion, the motor increases the rotational speed. In the case of intermittent rotation, it is necessary to shorten the stop time so as not to decrease the weft supply capacity or to decrease the loom operating speed by the amount of the decrease. According to claim 7, the remaining number monitoring means outputs the operation stop signal of the loom when the number of weft supply series for continuing weft insertion reaches a predetermined remaining number, and the loom is stopped. The motors of the weft supply system are not driven under harsh conditions in order to continue weft insertion, and do not reduce the loom operating speed more than necessary. When the number of weft supply lines that continue weft insertion reaches a predetermined remaining number, in order to stop the operation of the loom, the remaining number monitoring means sets a predetermined remaining number and the weft supply series that continues weft insertion When the number reaches the set number, in addition to outputting a loom stop signal, a number that is one more than the predetermined remaining number is set, and the number of weft supply lines that continue weft insertion is one less than the set number The loom stop signal is output. Alternatively, the number of weft supply lines excluded may be set, and when the number of weft supply lines excluded is one or more than the set number, the number of weft supply lines that continue weft insertion is determined. When the predetermined remaining number is reached, a loom stop signal is output.

  According to claim 8, since the excluded weft supply line is re-added to the weft insertion, in the weft supply line that continues the weft insertion, the operating condition of the motor of the weft length measuring storage device is eased, With the weft, the unwinding speed from the yarn feeding package and the winding speed around the weft length measuring storage device are reduced, so that the occurrence of fluff or the like is suppressed and damage is avoided. Further, even if a yarn feeding abnormality occurs in the weft supply system in the group thereafter, the loom can avoid the stop.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show a multi-color weft insertion device 60 according to a first embodiment of the present invention used for an air jet loom. 1 is a control block diagram of the multi-color weft insertion device 60, FIG. 2 is an input screen 15a and display screen 15b of the setting device 15, and FIG. 3 is a schematic diagram of the multi-color weft insertion device 60 when weft C breaks. 4 and 4 show an input screen 15a and a display screen 15b of the setter 15 when the weft C is broken.

  As shown in FIG. 3, the multi-color weft insertion device 60 includes eight weft supply lines L from a first weft supply line L1 to an eighth weft supply line L8 as a plurality of weft supply lines. Is an eight-color weft insertion device capable of inserting a maximum of eight different wefts C.

  Each weft supply line L includes a yarn supply package 1 mounted on a yarn supply peg (not shown), and yarn guides 11 and 12 for guiding the yarn (weft C) unwound from the yarn supply package 1 downstream in the weft travel direction. The tensioner 2 disposed between the yarn guides 11 and 12, the weft length measuring and storing device 30, the yarn feeding sensor 3 disposed between the yarn guide 12 and the weft length measuring and storing device 30, and the weft A yarn guide 13 disposed downstream of the length measuring storage device 30 and a weft insertion nozzle 9 disposed downstream of the yarn guide 13 are provided, and the tip of the weft insertion nozzle 9 faces the warp opening. The weft length measuring and storing device 30 is inserted into the storage drum 4 and the weft C formed in a pipe shape from the yarn supply package 1, and is disposed upstream of the storage drum 4 and the downstream end is the outer peripheral surface of the storage drum 4. A rotating yarn guide 5 that faces the rotating drum guide 5, a feeder motor 6 that drives the rotating yarn guide 5, and a solenoid that is disposed downstream of the storing drum 4 and is driven by a solenoid to move forward and backward with respect to the storing drum 4. It has a locking pin 7 that can unwind and unwound the weft C wound around the outer peripheral surface, and the storage drum 4 is wound with a weft C longer than the length supplied by one weft insertion. It is done. The weft length measuring and accumulating device 30 further includes an unillustrated unwinding sensor, which detects the weft C that is disposed at the downstream end of the storage drum 4 and is unwound from the storage drum 4. Each weft supply line L includes a push button 10 as a manually operated return means for the weft supply line excluded from the weft insertion. In this embodiment, the push button 10 is provided outside the feeder motor 6. It is attached to the frame. The yarn feed sensor 3 used in the present embodiment is a yarn breakage sensor that outputs a yarn feed abnormality signal when the contact pressure of the weft C is measured and falls below a predetermined threshold value. The yarn breakage of the weft C detected by the yarn feeding sensor 3 is caused by the unraveling of the weft C from the yarn feeding package 1, that is, with the rotation of the rotary yarn guide 5, and more than the wound yarn on the outer peripheral surface of the storage drum 4. As shown in FIG. 3, for example, the yarn breakage occurs between the yarn supply sensor 3 and the rotary yarn guide 5.

  As shown in FIG. 1, the weft insertion control device 65 of the multicolor weft insertion device 60 includes a weft insertion control circuit 21, a setting device 15, a remaining number monitoring means 35, and a weft insertion pattern setting device 24. The setting device 15 includes an input screen 15a, a display screen 15b, and an arithmetic circuit 15c, and sets a wetting operation mode. The remaining number monitoring means 35 includes an input device 22 and a comparator 23, and the weft supply series L is excluded when the yarn feeding abnormality is detected, so that the number of weft supply series to continue weft insertion is predetermined. When the remaining number is reached, a loom operation stop signal is output to stop the loom operation.

  As shown in FIG. 2, the input screen 15a and the display screen 15b of the setting device 15 are provided on the same screen in the operating condition input / display liquid crystal panel installed on the operation panel. The input screen 15a is provided with a “weft supply line No.” column 15ad as a selection unit for selecting individual weft supply lines L, and touches a circular area with a corresponding number in the “weft supply line No.” column 15ad. Thus, the weft supply line L with that number is selected. The column of the weft C on the input screen 15a, that is, “first weft C1,” “second weft C2,” “third weft C3,” “fourth weft C4,” “fifth weft C5,” “sixth weft. A circular mark indicating the identification color of each weft C is provided on the left side of each of the “C6”, “7th weft C7”, and “8th weft C8” fields. Are red, blue, yellow, brown, purple, green, pink, and orange as identification colors. However, for convenience, each color is expressed by a pattern in a circle. The display screen 15b has eight circular areas on which numbers 1 to 8 are displayed. The first circular area corresponds to the first weft supply line L1, and the second circular area corresponds to the first circular area. In order to correspond to the two weft supply series L2, each circular area is provided so as to be displayed corresponding to the weft supply series L of each number, and for each weft C corresponding to the identification color of each weft C. Lights in the same color. Thus, the operator can recognize by color vision which weft C is placed on the weft supply line L of that number.

  Next, a method for setting the wetting operation mode will be described. The number of weft supply lines L to be set for each weft C is determined based on the weaving specifications and taking into account the weft insertion frequency and the physical properties of the weft (for example, many wefts that are weak and easily break). An example of the fabric specification of the present embodiment is a four-color fabric in which the type of weft C is a first weft C1, a second weft C2, a third weft C3, and a fourth weft C4, and C1 → C2 → C3 → C4 → This is an example in which weft insertion in the order of C1 → C2 → C1 → C3 takes a weft insertion pattern that is one repetition. In this weft insertion pattern, the weft insertion frequency of the first weft C1 is the highest and the weft insertion frequency of the fourth weft C4 is the lowest. Accordingly, in this embodiment, the weft supply series L of the first weft C1 is set in three series in consideration of the weft insertion frequency, and the two weft supply series L of the second weft C2 and the third weft C3 is set up in each two series. One weft supply line L of four wefts C4 is set, and the weft C having a higher weft insertion frequency is set to more weft supply lines L. In this embodiment, three weft supply lines L for the first weft C1, two weft supply lines L for the second and third wefts C2 and C3, and one weft supply line L for the fourth weft C4. Each weft C is set up by the number of the above-mentioned series by the operator based on the instruction to set up. As a result, the first weft C1 is set on the first weft supply line L1, the second weft supply line L2, and the fifth weft supply line L5, respectively, and the second weft C2 is set on the third weft supply line L3 and the sixth weft supply line. The third weft C3 is set on the fourth weft supply line L4 and the seventh weft supply line L7, respectively, and the fourth weft C4 is set on the eighth weft supply line L8.

  Next, the operator sets the operation mode of weft insertion in the weft insertion control device 65, one group composed of three weft supply series L, and one group composed of two weft supply series L. Two independent weft supply lines L that do not constitute a group are set. Specifically, the first weft supply series L1, the second weft supply series L2, and the fifth weft supply series L5 on which the first weft C1 is set are set in one group composed of three weft supply series L. Then, it corresponds to the weft insertion of the first weft C1. Further, the third weft supply line L3 and the sixth weft supply line L6 on which the second weft C2 is set are set to one group composed of two weft supply lines L, and the weft insertion of the second weft C2 is performed. To correspond to. Further, the fourth weft supply line L4 and the seventh weft supply line L7 on which the third weft C3 is set are set in one group composed of two weft supply lines L, and the weft insertion of the third weft C3 is performed. To correspond to. Furthermore, one eighth weft supply line L8 on which the fourth weft C4 is set is set as a single weft supply line L that does not constitute a group, and corresponds to the weft insertion of the fourth weft C4.

  The setting of the operation mode of the weft insertion to the weft insertion control device 65 is performed from the input screen 15a. The operator first touches the “setting start” column 15aa of “first weft” on the input screen 15a. Thereby, the setting of the first weft C1, that is, the weft supply line L to be inserted corresponding to the selection of the first weft C1 of the weft insertion pattern can be set. Next, after touching and selecting the circular area of the number 1 in the “weft supply series NO.” Column 15ad, the “joining” column 15ac is touched. As a result, the first weft supply line L1 is set to the weft supply line L inserted in response to the selection of the first weft C1, and the first circular area of the display screen 15b changes to red. Similarly, after touching the circular area of the number 2 in the “weft supply series NO.” Field 15ad, touch the “joining” field 15ac, touch the circular area of the number 5 and then touch the “joining” field 15ac. touch. It is confirmed that the circular areas of the number 1, the number 2, and the number 5 on the display screen 15 b are all lit red, and the circular areas of other numbers are not lit red. When the circular area of another number is lit in red, the circular area of the number in the “weft supply series NO.” Column 15ad is selected by touching, and then the “delete” column 15ae is touched. The red lighting of the numbered circular area of the display screen 15b changes to the blue lighting that is the identification color of the next second weft C2. Next, the “setting complete” column 15ab of “first weft” is touched. As a result, the setting of the weft supply series L that is inserted corresponding to the selection of the first weft C1 is determined in the first weft supply series L1, the second weft supply series L2, and the fifth weft supply series L5. In other words, the first weft supply line L1, the second weft supply line L2, and the fifth weft supply line L5 correspond to the selection of the first weft C1 of the weft insertion pattern, and the weft supply line L group that is alternately inserted in order. Grouped as For the “second weft” on the input screen 15a, the same operation as for the “first weft” is performed, and both the number 3 and the number 6 circular area on the display screen 15b are lit in blue. After confirmation, the “setting complete” field 15ab of “second weft” is touched. As a result, the third weft supply line L3 and the sixth weft supply line L6 are grouped as a weft supply line L group that is alternately inserted correspondingly when the second weft C2 of the weft insertion pattern is selected. . The same operation is performed for “third weft” on the input screen 15a, and it is confirmed that both the number 4 and the number 7 circular area on the display screen 15b are lit yellow. Then, the “setting completed” field 15ab of “third weft” is touched. As a result, the fourth weft supply line L4 and the seventh weft supply line L7 are grouped as a weft supply line L group that is alternately inserted in accordance with the selection of the third weft C3 of the weft insertion pattern. . Next, after touching the “setting start” field 15aa of the “fourth weft” on the input screen 15a, the circular area of the number 8 in the “weft supply series NO.” Field 15ad is touched, and then the “joining” field Touch 15ac. As a result, the eighth weft supply line L8 is set to the weft supply line L inserted when the fourth weft C4 is selected, and the eighth circular area of the display screen 15b changes to brown. After confirming that the numeral 8 on the display screen 15b is lit in brown, the “setting completed” column 15ab of “fourth weft” is touched. As a result, the setting of the weft supply line L to be inserted corresponding to the selection of the fourth weft C4 is determined only for the eighth weft supply line L8. That is, the eighth weft supply line L8 is set as a single weft supply line L that does not constitute a group, and is inserted every time the fourth weft C4 is selected in the weft insertion pattern. Thus, the setter 15 has a second function of setting the selected weft supply line L as a single weft supply line L in addition to the first function of grouping the selected plurality of weft supply lines L. . It should be noted that each weft supply line L is selected and set to the corresponding weft C. However, a part of the previous weaving conditions coincides with the current weaving conditions, so that the corresponding weft C is already set. In the weft supply line L, the selection operation and the joining operation may be omitted.

  Next, using the input device 22 of the remaining number monitoring means 35, the remaining number of the weft supply series L whose operation is stopped is set in each of the wefts C1, C2, C3, and C4. The input device 22 of the remaining number monitoring means 35 is provided on the same screen as the input screen 15a and the display screen 15b of the setting device 15, and includes a “loom stop remaining number” column 22a. Since the weft insertion frequency of the first weft C1 is high, the number of weft supply lines L excluded in accordance with the detection of the yarn feeding abnormality increases, and when the number of normal weft supply lines that continue weft insertion decreases to 1, That is, when the remaining number is 1 and the weft insertion of the first weft C1 is continued with only one weft supply line L, the feeder motor 6 of the weft supply line L that continues the weft insertion has severe operating conditions. It becomes. For example, when the weft insertion of the first weft C1 is sequentially changed in three weft supply lines L, if each feeder motor 6 is operated at a rotational speed of 1000 rpm, the remaining number becomes 1 and one weft supply line If the weft insertion of the first weft C1 is continued only with L, the feeder motor 6 needs to be operated at a rotational speed of 3000 rpm, which is three times 1000 rpm, if the stop time is not shortened. Even if the time is shortened, the maximum rotation speed of the feeder motor 6 is exceeded. In such a case, the operating speed of the loom must be reduced. In the weft supply line L group of the group in which the first wefts C1 are sequentially changed in order, in order to avoid the severe operation of the feeder motor 6, the operator must stop the operation of the weft supply line L. Set the remaining number.

  The operator touches the “setting start” column 15aa of “first weft” on the input screen 15a. Thereby, the first weft C1 can be set. Next, the “number of looms remaining” column 22a is touched. Each time the touch is repeated, the displayed number is changed, and numbers from 0 to 1 are sequentially displayed as 0 → 1 → 2 → 3 → 0 → 1 → 2 → 3. After changing the number to 1, the “setting complete” column 15ab is touched. As a result, in the first weft C1, the remaining number of weft supply lines that sequentially change the weft insertion is set to 1. As described above, in the input device 22 of the remaining number monitoring means 35, the “setting start” column 15aa and the “setting completion” column 15ab are also used as the input screen 15a of the setting device 15. Since the weft insertion frequency is not high except for the first weft C1, the remaining number is set to 0, and the loom is not stopped until there is no weft supply line L for inserting the weft C. In this way, when the predetermined remaining number is set and the number of weft supply lines that continue weft insertion reaches the set number, in addition to outputting a loom stop signal, a number one more than the predetermined remaining number is set, A loom stop signal may be output when the number of weft supply lines that continue to enter is less than the set number by one. Alternatively, the number of weft supply lines excluded may be set. In that case, when the number of weft supply lines excluded is one or more than the set number or the set number, the number of weft supply lines that continue weft insertion reaches a predetermined remaining number, and a loom stop signal is output. The

  The weft insertion control device will be described based on the control block diagram of the multicolor weft insertion device 60 of FIG. In the setting device 15, the weft supply series L selected for each weft C on the input screen 15 a is a plurality of weft supply series L grouped for each weft C or a single weft supply series L by the arithmetic circuit 15 c. Set to More specifically, the first weft supply series L1, the second weft supply series L2, and the fifth weft supply series L5 are set to one group composed of three weft supply series L, and the first weft C1 is inserted. To correspond to. Further, the third weft supply series L3 and the sixth weft supply series L6 are set to one group composed of two weft supply series L, and correspond to the weft insertion of the second weft C2. Further, the fourth weft supply line L4 and the seventh weft supply line L7 are set to one group composed of two weft supply lines L, and correspond to the weft insertion of the third weft C3. Further, one eighth weft supply line L8 is set as a single weft supply line L that does not constitute a group, and corresponds to the weft insertion of the fourth weft C4. In addition, the arithmetic circuit 15c displays each weft supply line L on the display screen 15b with a predetermined identification color different for each weft C. The weft insertion control circuit 21 determines the order of the weft supply series L that sequentially changes the weft insertion for each group of wefts C based on the information on the operation mode of such weft insertions input from the arithmetic circuit 15c. . In this embodiment, in the weft insertion of the first weft C1, the weft insertion control circuit 21 has the first weft supply line L1 → the second weft supply line L2 → the fifth weft supply line L5 → the first weft supply line L1 → the first. The order of the weft supply line L that sequentially changes the weft insertion is determined in the order of the 2 weft supply line L2 → the fifth weft supply line L5 and L1 → L2 → L5. In the weft insertion of the second weft C2, the weft insertion is performed in the order of the third weft supply line L3 → the sixth weft supply line L6 → the third weft supply line L3 → the sixth weft supply line L6 and L3 → L6. The order of the weft supply line L to be sequentially changed is determined. Furthermore, in the weft insertion of the third weft C3, the fourth weft supply line L4 → the seventh weft supply line L7 → the fourth weft supply line L4 → the seventh weft supply line L7 and the weft supply line in the order L4 → L7. The order in which L sequentially changes the wetting is determined. However, by changing the setting of the weft insertion control circuit 21, L1 → L1 → L2 → L2 → L5 → L5 in the weft insertion of the first weft C1, and L3 → L3 in the weft insertion of the second weft C2. The order of L6 → L6 and the weft insertion of the third weft C3 may be in the order of L4 → L4 → L7 → L7, and the same weft supply line L may be used twice in succession. The weft insertion control circuit 21 has a storage unit (not shown), and stores the weft insertion pattern information input from the weft insertion pattern setting unit 24. Further, the weft insertion control circuit 21 includes air from a push button 10, a yarn feed sensor 3, a feeder motor 6, a solenoid of a locking pin 7, and a pressure air source (not shown) provided for each weft supply line L. Are connected to the weft insertion nozzle 9 in an intermittent manner.

  When the operation of the loom is started, the weft insertion control circuit 21 reads the weft thread C that is inserted from the stored weft insertion pattern information, and the order of the weft supply line L that sequentially changes the weft insertion in that weft C. Based on the above, the weft supply line L for performing the weft insertion operation is obtained every rotation of the loom main shaft (weft insertion cycle). The weft insertion control circuit 21 includes an electromagnetic on-off valve of a predetermined weft supply series L that performs a weft insertion operation based on the loom main shaft rotation angle information from an encoder EN connected to a main motor M that drives a loom main shaft (not shown). Driven at a predetermined time, air injection start and air injection end are performed from the weft insertion nozzle 9. In this embodiment, the type of weft C is a four-color woven fabric composed of a first weft C1, a second weft C2, a third weft C3, and a fourth weft C4. C1-> C2-> C3-> C4-> C1-> C2-> C1 Since the weft insertion in the order of C3 takes a weft insertion pattern that is repeated one time, the weft insertion control circuit 21 has a weft corresponding to the number described in each weft insertion as shown in FIG. Weft insertion is performed using the supply line L.

  In the weft supply series L, when a yarn feeding abnormality such as a yarn breakage is detected by the yarn feeding sensor 3 and a yarn feeding abnormality signal is input, the weft insertion control circuit 21 excludes the weft supply series L and remains. The weft insertion is continued using another normal weft supply line L. In the example shown in FIG. 5, after the 21st weft insertion, a yarn feeding abnormality is detected in the second weft supply system L2, and therefore the second weft supply system L2 is excluded. As a result, the 29th weft insertion is performed using the fifth weft supply line L5 instead of the second weft supply line L2. Thereafter, the first weft supply line L1 and the fifth weft supply line L5 are sequentially changed to perform weft insertion, and the weft insertion corresponding to the first weft C1 of the weft insertion pattern is continued.

  Information on the excluded weft supply line L is input from the weft insertion control circuit 21 to the display screen 15b via the arithmetic circuit 15c, and the excluded weft supply line L is displayed on the display screen 15b. In this embodiment, the lighting mode of the identification color in the circular area of the weft supply line L excluded from the display screen 15b changes from continuous lighting to flashing lighting. Therefore, as shown in FIG. 4, the circular area corresponding to the second weft supply line L2 having the number 2 blinks in red. The operator continues the weft insertion of the first weft C1 from the remaining two red continuous lighting and the setting value 1 in the “number of looms remaining” column 22a of the same red “first weft”. In either of the two weft supply lines L, it is known that the weaving machine will stop when the next yarn feeding abnormality is detected, and the yarn supply package 1 of the second weft supply line L2 needs to be repaired or replaced immediately. Learn about things based on color vision.

  The operator repairs the weft C of the excluded weft supply line L or replaces the yarn supply package 1 while operating without stopping the loom. The yarn breakage of the weft C occurs with the unwinding of the weft C from the yarn supply package 1, that is, with the rotation of the rotary yarn guide 5, and is upstream of the wound yarn on the outer peripheral surface of the storage drum 4, for example, in FIG. As shown, yarn breakage occurs between the yarn supply sensor 3 and the rotary yarn guide 5. The operator removes the cause of the unwinding failure of the weft C from the yarn supplying package 1 or replaces the yarn supplying package 1, and then the weft C from the yarn supplying package 1 and the winding yarn on the outer peripheral surface of the storage drum 4. After the yarn is tied with the weft C connected to the yarn, the slack in the vicinity of the yarn feeding sensor 3 is eliminated. In some cases, the feeder motor 6 is rotated to form a winding yarn on the outer peripheral surface of the storage drum 4. When such a series of operations is completed, the push button 10 attached to the outer frame of the feeder motor 6 is operated. The weft insertion control circuit 21 identifies the weft supply line L that has been repaired based on the repair completion signal from the push button 10, and returns the weft supply line L to the weft insertion of the corresponding weft C. Based on the weft insertion return information of the weft supply line L input from the weft insertion control circuit 21, the arithmetic circuit 15c returns the lighting state of the identification color in the circular area of the weft supply line L to continuous lighting on the display screen 15b. .

  If the number of normal weft supply lines L to continue weft insertion is excluded before reaching the set remaining number, and the repair work or replacement work of the yarn supply package 1 of the weft supply line L is not performed, Next, when the yarn feeding abnormality occurs, the loom is stopped. That is, the arithmetic circuit 15c performs the weft insertion corresponding to the weft C based on the weft supply series L for each group of weft C and the information of the exclusion and return weft supply series L input from the weft insertion control circuit 21. The number of weft supply lines that are continued is calculated for each group of weft C and output to the comparator 23 of the remaining number monitoring means 35. The comparator 23 compares the remaining number set by the input unit 22 with the number of weft supply lines that have been continuously inserted from the arithmetic circuit 15c for each weft C group. In this group, when the number of weft supply lines continuing weft insertion reaches a predetermined remaining number, the remaining number set in the “remaining loom stop” column 22a in this embodiment, the weft insertion control circuit A loom stop signal is output to 21 to stop the loom. In this embodiment, the weft C inserted by the single weft supply line L is also set as the remaining number 0 in the “number of looms remaining” column 22a, and there is a yarn feeding abnormality in the single weft supply line L. When detected, the remaining number monitoring means 35 determines that the number of weft supply lines that continue weft insertion has reached a predetermined remaining number of 0, and outputs a loom stop signal. However, the loom stop due to the yarn feeding abnormality detection in the single weft supply line L may be performed without using the remaining number monitoring means 35. In that case, the weft insertion control circuit 21 stops the loom based on the yarn feeding abnormality detection signal from the yarn feeding sensor 3 of the single weft supply line L.

  In this embodiment, the weft insertion control circuit 21 reads the weft thread C that is inserted from the stored weft insertion pattern information, and in the determined order of the weft supply line L that sequentially changes the weft insertion in the weft C. On the basis of this, a weft supply line L for performing the weft insertion operation is obtained every rotation (weft insertion cycle) of the main shaft of the loom. Every time a weft abnormality is detected and the weft supply line L is excluded, it is excluded again. Every time L is restored and returned, the order of the weft supply line L that alternates is changed. However, based on the weft insertion pattern information and the order of the weft supply series L in the weft C, the weft insertion control circuit 21 performs the weft supply series L for executing the weft insertion for each weft insertion in a plurality of weft insertion cycles. It may be programmed over time and predetermined. In that case, every time a weft supply abnormality is detected and the weft supply line L is excluded, and every time the weft supply line L is removed and restored, the programming is changed.

  The weft insertion control device 65 of the present embodiment can freely select the weft supply line L that constitutes the group of wefts C, and therefore can freely set the number of weft supply lines that sequentially alternate the weft insertion of the wefts C. In addition, a single weft supply line L corresponding to the weft C can be freely selected. Accordingly, the number of groups, the number of weft supply lines L constituting one group, and the number of independent weft supply lines L can be freely set. Thereby, the operation mode of weft insertion can be freely set according to the weaving conditions. For example, as shown in FIG. 2, three groups and one single weft supply line L are set, or eight weft supply lines L are all set as a single weft supply line L and different wefts C are set. The operation mode of weft insertion can be freely set according to the weaving conditions, such as setting four groups each having two weft supply lines to constitute and not setting a single weft supply line L. However, as in the second embodiment, the weft insertion control device may be a weft insertion control device that can set only a plurality of predetermined weft insertion operation modes, and is optimal for weaving conditions. The wetting operation mode is selected and set.

  Based on FIGS. 6 to 9, the multi-color weft insertion according to the second embodiment of the present invention having a weft insertion control device 75 as a weft insertion control device capable of setting only a plurality of predetermined wetting operation modes. The device 70 will be described. The multi-color weft insertion device 70 includes six weft supply lines L from a first weft supply line L1 to a sixth weft supply line L6 as a plurality of weft supply lines. This is a six-color weft insertion device capable of inserting weft C.

  As shown in the control block diagram of FIG. 6, the weft insertion control device 75 of the multi-color weft insertion device 70 includes a weft insertion control circuit 21, a setting device 25, a remaining number monitoring means 35, and a weft insertion pattern setting device. 24 and a storage device 20, and the storage device 20 is connected to the arithmetic circuit 25 c of the setting device 25.

  As shown in FIG. 7, the input screen 25a and the display screen 25b of the setting device 25 and the input device 22 of the remaining number monitoring means 35 are the same screen in the operating condition input / display liquid crystal panel installed on the operation panel. It is provided above. The input screen 25a is provided with a selection section for selecting one of the wetting operation modes shown in FIGS. 8 and 9, and touching the “previous” column 25ab or the “next” column 25ac of the selection section. Thus, the selected weft insertion operation mode is sequentially changed. The display screen 25b has six circular areas on which numbers 1 to 6 are displayed. The first circular area corresponds to the first weft supply line L1, and the second circular area corresponds to the first circular area. The circular regions are provided corresponding to the respective weft supply lines L of the respective numbers so as to correspond to the two weft supply lines L2, and “wefts”, that is, “first” of the input device 22 of the remaining number monitoring means 35. The identification color of the weft C marked on the left of each of the "weft", "second weft", "third weft", "fourth weft", "fifth weft", and "sixth weft" Each C lights up in the same color, and the wetting operation mode selected on the input screen 25a is displayed with color vision.

  Next, a method for setting the wetting operation mode will be described. The operator first touches the “selection start” column 25aa on the input screen 25a. This makes it possible to set the wetting operation mode. Next, the “previous” column 25ab or the “next” column 25ac of the selection unit is touched. By repeating the touch, the operation modes 1 to 20 shown in FIGS. 8 and 9 are sequentially selected, and the selected operation mode is displayed on the display screen 25b. In FIG. 7, the display screen 25b shows a state in which the No. 15 operation mode shown in FIG. 9 is selected, and the first weft supply line L1 and the second weft supply line L2 are grouped into the first weft. The weft insertion of C1 is performed in turn, the fourth weft supply line L4 and the fifth weft supply line L5 are grouped and the weft insertion of the third weft C3 is performed in turn, and the third weft supply line L3 wefts the second weft C2 alone, and the sixth weft supply line L6 wefts the fourth weft C4 alone. After the display of the operation mode on the display screen 25b is switched to the desired wetting operation mode, the “selection completion” column 25ad of the input screen 25a is touched. The storage device 20 stores the operation modes Nos. 1 to 20 shown in FIGS. 8 and 9, and the arithmetic circuit 15c stores information on the operation mode of the weft insertion from the input screen 25a, for example, the operation mode. Based on the number, the corresponding wetting operation mode is read from the storage device 20 and output to the weft insertion control circuit 21. The weft insertion control circuit 21 determines the order of the weft supply series L that sequentially changes the weft insertion in the group of wefts C based on the information of the weft supply series L of the group of wefts C input from the arithmetic circuit 25c.

  Next, using the input device 22 of the remaining number monitoring means 35, the remaining number of the weft supply series L whose operation is stopped is set in each of the wefts C1, C2, C3, and C4. The input device 22 of the remaining number monitoring means 35 is provided on the same screen as the input screen 25a and the display screen 25b of the setting device 25. The “setting start” column 22a, “the remaining number of loom stops” column 22b, “ A “setting complete” column 22c is provided. The operator touches the “setting start” column 22a of “first weft”. Thereby, the first weft C1 can be set. Next, the “Loom stop remaining number” column 22b is touched. Each time the touch is repeated, the displayed number is changed, and 0 → 1 → 2 → 3 → 0 → 1 → 2 → 3 and the numbers from 0 to 3 are sequentially displayed. After changing the number to 1, the “setting completed” column 22c is touched. As a result, in the first weft C1, the remaining number of weft supply lines that continue weft insertion is set to 1. In the second weft C2, the third weft C3, and the fourth weft C4, the remaining number is set similarly to the first weft C1.

  When the operation of the loom is started, the weft insertion control circuit 21 reads the weft thread C that is inserted from the stored weft insertion pattern information, and the order of the weft supply line L that sequentially changes the weft insertion in that weft C. Based on the above, the weft supply line L for performing the weft insertion operation is obtained every rotation of the loom main shaft (weft insertion cycle). The weft insertion control circuit 21 drives an electromagnetic on-off valve of a predetermined weft supply system L that performs a weft insertion operation at a predetermined time based on the loom main shaft rotation angle information from the encoder EN connected to the main motor M of the loom. Then, the air injection start and the air injection end are performed from the weft insertion nozzle 9. Each time the weft insertion control circuit 21 detects a yarn feeding abnormality and the weft supply line L is excluded, and every time the weft supply line L is removed and restored and restored, the weft supply line L is sequentially changed. Change the order.

  In this embodiment, as in the first embodiment, the wetting supply line L that has been excluded due to the yarn feeding abnormality is changed from the continuous lighting to the blinking lighting in the identification color in the circular area of the display screen 25b. When it is restored and restored, it returns to continuous lighting.

  The number of operation modes of weft insertion is increased or decreased according to the number of weft supply lines L of the multicolor weft insertion device. As for the operation mode of the weft insertion of this embodiment, the operation modes of the 1st to 20th weft insertion shown in FIGS. 8 and 9 can be implemented in correspondence with the multi-color weft insertion device having 6 series. The number may be reduced only as a plurality of operation modes that may be implemented. For example, only the two wetting operation modes No. 1 and No. 5 shown in FIG. 8 may be settable. That is, an operation mode in which all six weft supply lines L are a single weft supply line L and only one group is formed, and the group is composed of two weft supply lines L, and all the remaining four are supplied. The operation mode in which the weft supply line L is a single weft supply line L can be set.

  Various devices and various methods can be used for the input screens 15a and 25a, the display screens 15b and 25b, and the input method and display method thereof in the first and second embodiments. For example, normally only the display screen is provided, and the input screen and the display screen are provided on the same screen only when setting by touching the setting field on the screen, instead of using the input screen, a keyboard, etc. You may use the method of inputting by.

  The present invention is not limited to any of the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

It is a control block diagram of the multi-color weft insertion device 60 of the first embodiment of the present invention. The input screen 15a, the display screen 15b, and the input device 22 of the setting device 15 of the first embodiment are shown. The schematic diagram of the multi-color weft insertion device 60 at the time of the yarn breakage of the weft C is shown. The display screen 15b at the time of occurrence of yarn breakage of the weft C is shown. The weft supply line L that performs the weft insertion operation in each weft insertion is indicated by a number corresponding to each weft supply line L. It is a control block diagram of the multi-color weft insertion apparatus 70 of the 2nd Example of this invention. The input screen 25a, the display screen 25b, and the input device 22 of the setting device 25 of the 2nd Example of this invention are shown. The operation mode of weft insertion that can be set in the multi-color weft insertion device 70 of the second embodiment is shown. The operation mode of weft insertion that can be set in the multi-color weft insertion device 70 of the second embodiment is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Yarn supply package 2 Tensor 3 Yarn supply sensor 4 Storage drum 5 Rotating yarn guide 6 Feeder motor 7 Locking pin 9 Weft insertion nozzle 10 Push button 11 Yarn guide 12 Yarn guide 13 Yarn guide 15 Setting device 15a Input screen 15b Display screen 15c Arithmetic circuit 20 Storage unit 21 Weft insertion control circuit 22 Input unit 23 Comparator 24 Weft insertion pattern setting unit 25 Setting unit 25a Input screen 25b Display screen 25c Arithmetic circuit 30 Weft length measuring storage device 35 Remaining number monitoring means 60 Multi-color weft insertion Device 65 Weft insertion control device 70 Multicolor weft insertion device 75 Weft insertion control device C Weft C1 1st weft C2 2nd weft C3 3rd weft C4 4th weft EN Encoder L Weft supply series L1 1st weft supply series L2 2nd Weft supply series L3 Third weft supply series L4 Fourth weft supply series L5 Fifth weft supply series L6 Sixth weft supply series 7 The seventh weft supply line L8 eighth weft supply line M main motor

Claims (8)

Three or more weft supply lines each having a yarn feeding package, a weft length measuring and storing device, a weft insertion nozzle, and a yarn feeding sensor disposed upstream of the weft length measuring and storing device, In the multi-color weft insertion device of a fluid jet loom in which wefts are inserted according to a predetermined weft insertion pattern,
A weft insertion control device is provided, and the weft insertion control device sets a plurality of weft supply lines that are smaller than the total number of weft supply lines on which wefts are actually set as a group in which the same type of weft is set, and groups them Multi-color weft insertion according to a predetermined weft insertion pattern by the plurality of weft supply series and other weft supply series, and a type corresponding to a group while sequentially changing the weft supply series operating in the group When weft insertion of the weft is executed and the yarn feed sensor detects a yarn feed abnormality in any of the weft supply series in the group, only the other series in the group corresponds to the group, excluding the series A multi-color weft insertion device for a fluid jet loom characterized by continuing the weft insertion of various types of wefts.   The weft insertion control device aims at the grouping, and for other weft supply series, one or more other groups, or one or more single weft supply series not constituting a group, or the other groups and By setting as any one of the combinations of the single weft supply series and changing the number of weft supply series constituting the group, the operation mode of the weft insertion in all the weft supply series can be changed, 2. The multi-color weft insertion device for a fluid jet loom according to claim 1, wherein each group and a single weft supply system have different weft types.   The weft insertion control device includes a setting device for setting the operation mode of weft insertion. The setting device is capable of individually selecting a weft supply series, and a first grouping group of a plurality of selected weft supply series. 3. The multi-color weft insertion device for a fluid jet loom according to claim 2, further comprising: a second function of setting the selected weft supply system as a single weft supply system.   The said insertion control apparatus is provided with the memory | storage device and setting device which memorize | store the several operation mode of weft insertion, This setting device selects and sets a predetermined operation mode from several operation modes, The setting device is characterized by the above-mentioned. Multi-color weft insertion device for fluid jet looms.   The setting device includes a display screen in which respective display areas are provided corresponding to all the weft supply series, and each display area corresponding to each weft supply series of the same group has the same color and other 5. The multi-color weft insertion device for a fluid jet loom according to claim 3, wherein the color is displayed in a color different from the color of the weft supply series.   The display area corresponding to the weft supply series excluded in accordance with the detection of the yarn feeding abnormality in the group is displayed in the same color and different form with respect to the weft supply series which are sequentially changed. The multi-color weft insertion device for a fluid jet loom according to claim 5.   A remaining number monitoring means is provided, which means that the number of weft supply lines in the group that continues weft insertion is determined to be a predetermined remaining number when a weft supply series is excluded upon detection of a yarn feeding abnormality in the group. The multicolor weft insertion device for a fluid jet loom according to any one of claims 1 to 6, wherein an operation stop signal of the loom is output when the number is reached.   A manually operated return means is connected to the weft insertion control device, and the weft insertion control device converts the excluded weft supply line into the weft insertion corresponding to the group in response to the signal output from the return means. The multi-color weft insertion device for a fluid jet loom according to any one of claims 1 to 7, wherein the multi-color weft insertion device is returned.

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