JP2006274465A - Device for partially inserting weft yarn, storage medium and fabric - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for partially inserting weft yarns solving problems such as hard to industrialize, requires time and effort or causing loss of threads, or a limit exists for applicable kind of looms, and not requiring an exclusive loom, partially inserting weft yarns by adding to a currently possessed loom. <P>SOLUTION: An inserting plate 1c which guides weft yarn 86 to be inserted by a yarn guide 1d on the tip, is rotated by an inserting driver 1a and inserted into a shed K during opening of the warp 81 (B). A positioning needle 2a with sharp tip is inserted into the warp 81 by a selvage controlling device 2 and the weft 86 is inserted between warp yarn 81 by the reverse rotation of the inserting plate 1c. The fabric with partially inserted weft yarn 86 is obtained by beating while evacuating the inserting plate 1c, inserting driver 1a and the selvage controlling device 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is used in a weaving machine provided with a weft supplying means for supplying a weft through a shed, and a reed for forming a woven fabric by striking the weft supplied by the weft supplying means. A partial weft insertion device that inserts an insertion weft different from the weft supplied by the supply means into a part of the fabric in the width direction, a storage medium that can be used to control the partial weft insertion device, and the insertion weft The present invention relates to a fabric inserted in a part in the width direction.

  Heretofore, several methods are known as methods for producing a woven fabric in which wefts are partially inserted between warp yarns. First, there is a method in which wefts are inserted manually to express a pattern and weaving the woven fabric, as is known in Goblan weaving. However, this method is labor intensive and difficult to industrialize, and its use is limited to the production of Japanese clothing and traditional crafts.

  As a mechanical method, a jacquard loom is used, a pattern is expressed by wefts, and the wefts other than the pattern are floated without being organized on the back of the fabric and cut after weaving. However, this method has the inconvenience that the operation of cutting off the wefts other than the pattern portion must be performed manually, and the disadvantage that a lot of yarn loss occurs.

Next, a sewing weaving machine is known. This is a loom having a mechanism for rotating and inserting a bobbin wound with a thread to be inserted between open warp yarns. However, this has the disadvantages that the bobbin needs to be made small and that the amount of yarn to be wound is limited and the pattern is limited. In addition, a method has been proposed in which only the warp to be inserted is selectively opened by jacquard and the weft is inserted into the portion before weaving (see, for example, Patent Document 1). However, this method also has a drawback that it can be applied only to a limited organization even if the applicable loom is a jacquard loom or dobby loom. There is also an invention of a loom capable of weaving Cobran weave or Kerim weave (see, for example, Patent Document 2). However, this also requires the use of a dedicated loom.
JP-A-48-85870 Japanese Patent Publication No. 2002-513867

  As described above, the conventional methods have problems in that industrialization is difficult, labor and yarn loss occur, and the types of looms that can be applied are limited. Therefore, the present invention has been made to solve these problems, and to make it possible to partially insert a weft thread by adding it to an existing loom without requiring a new dedicated loom.

  The partial weft insertion device of the present invention made to achieve the above object forms a woven fabric by punching the weft supplied by the weft supplying means for supplying the weft through the shed and the weft supplied by the weft supplying means. A partial weft insertion device for inserting an insertion weft that is different from the weft supplied by the weft supply means into a part of the fabric in the width direction. At this time, it is characterized by comprising weft insertion means for inserting the insertion weft into the shed through the gap between the warp yarns on one side constituting the shed.

  In this way, the weft insertion means provided in the present invention, when the shed is opened, the insertion into the shed through the gap of the warp on one side (usually upper or lower) constituting the shed. Insert the weft thread. For this reason, if the beating is performed after the insertion weft is inserted by the weft insertion means, a fabric in which the weft (insertion weft) is partially inserted between the warps can be mechanically manufactured. Moreover, since the weft insertion means inserts the weft for insertion through the gap of the warp on one side constituting the shed, the present invention can be applied regardless of the weft insertion method or the opening method, Moreover, there is no restriction | limiting also in a woven structure.

  Therefore, in the partial weft insertion device of the present invention, a new dedicated loom is not required, and the weft can be partially inserted by adding to the existing loom, and the structure is not limited. In the present invention, since the insertion weft can be inserted only in a part of the fabric in the width direction, it is possible to eliminate the trouble of cutting off the weft other than the pattern portion and the loss of the yarn.

  The present invention is not particularly limited to the configuration of the weft insertion means, but the weft insertion means inserts the insertion weft by reciprocating in the shed through the warp gap, Thread end control means for defining the return position of the insertion weft inserted into the shed through the other gap of one side of the warp constituting the shed and inserted by the weft insertion means is further provided. May be. In this case, the insertion width of the insertion weft can be accurately controlled by the cooperation of the weft insertion means and the yarn end control means.

  In this case, the apparatus further comprises a folding position moving means for moving the yarn end control means in the width direction of the fabric, and an insertion position moving means for moving the weft insertion means in the width direction of the fabric. Also good. In this case, the insertion position and the insertion width of the insertion weft can be changed by moving the yarn end control means and the weft insertion means by the folding position moving means and the insertion position moving means.

  Further, in the case where the weft insertion means and the yarn end control means as described above are provided, at the time of punching, the weft insertion means and the yarn end control means are retracted to a position where they do not interfere with the wrinkles, A retraction means may further be provided for projecting the weft insertion means and the yarn end control means to a position where the insertion wefts can be inserted and the return position can be defined when opened. In this case, it is possible to satisfactorily prevent the weft insertion means and the yarn end control means from being retracted at the time of lashing so that they interfere with the heel. Further, when the shed is opened, the weft insertion means and the yarn end control means can be protruded, so that the insertion of the insertion weft and the definition of the turn-back position can be executed satisfactorily.

  Further, in the case where the weft insertion means and the yarn end control means as described above are provided, the weft insertion means is a circle around a rotation axis provided along the length direction of the fabric on the outside of the shed. You may reciprocate in an arc. In this case, when the weft insertion means passes through the gap between the warps, the direction of movement of the weft insertion means is close to perpendicular to the surface of the warp, and after the weft insertion means enters the shed, The moving direction of the weft insertion means changes in a direction along the surface formed by the warp. Therefore, in such a configuration, the weft can be inserted more satisfactorily.

  Furthermore, the partial weft insertion device of each of the above inventions may further comprise tension control means for controlling the tension of the insertion weft inserted by the weft insertion means. In this case, even when the insertion weft is supplied from a cone or the like provided outside the apparatus, the tension of the inserted insertion weft can be properly controlled. Therefore, in this case, the insertion weft can be stably inserted.

  Still further, the partial weft insertion device of each of the above inventions includes a sensor for detecting the amount of rotation of the crankshaft of the loom, and a drive control means for controlling the driving of each means based on a sequential program based on a detection signal of the sensor. And may be further provided. In this case, each of the above-described means such as the weft insertion means can be driven and controlled based on the amount of rotation of the crankshaft that is synchronized with the timing of beating. Therefore, in this case, the insertion weft can be inserted more satisfactorily.

  The storage medium of the present invention is a storage medium storing a software program for creating a sequential program used in the partial weft control device of the present invention, and is used for the insertion in the band-like region associated with the fabric. When an insertion area into which a weft is to be inserted is drawn, the lengthwise and widthwise coordinates in the band-like area at both ends of the insertion area are converted into coordinates representing the insertion position and the folding position of the insertion weft. A software program for executing a coordinate conversion process and a transmission process for transmitting the converted coordinate value to the drive control means is stored.

  For this reason, if the computer executes the software program stored in the present invention after drawing the insertion area in the band-shaped area associated with the fabric, the following processing can be performed. That is, the length direction and width direction coordinates of the both ends of the insertion area in the band-like area are converted into coordinates indicating the insertion position and the return position of the insertion weft (coordinate conversion process), and the converted coordinates Can be transmitted to the drive control means (transmission process). Therefore, if the coordinate value is transmitted to the drive control means by the software program stored in the storage medium of the present invention, the drive control means drives and controls each of the means based on the coordinate value. An insertion weft can be inserted into the fabric along the insertion region.

  Further, the woven fabric of the present invention is a woven fabric formed by supplying a weft thread through a shed and beating the weft yarn. An insertion weft different from the weft yarn is used in the width direction of the woven fabric. It is characterized by being partly inserted. Such a fabric is extremely excellent in design and has a very high utility value. In addition, since the weft for insertion is inserted only in a part of the fabric in the width direction, the fabric of the present invention can be reduced in weight while ensuring the design.

  In addition, as described above, such a woven fabric has a high manufacturing cost because it takes time to manufacture, a lot of yarn loss occurs, and a special loom must be used. However, when the insertion weft is inserted by the partial weft insertion device according to any one of the inventions, these problems can be solved and the manufacturing cost can be reduced well.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view schematically showing the configuration of a loom 51 equipped with a partial weft insertion device to which the present invention is applied. First, the configuration of the loom 51 will be described.

  The loom 51 is a so-called dobby-type loom that opens the warp 81 by moving the reed frame 53 up and down, and serves as a weft supply means for supplying the weft 82 by reciprocating through the reed port K formed by the opening operation. There is provided a reed 55 and a reed 57 that forms a fabric 83 by striking the weft yarn 82 supplied by the reed 55.

  The partial weft insertion device according to the present embodiment partially applies the weft 86 as the weft for insertion supplied from the yarn cone 85 to the gap where the warp 81 is opened from the pre-weaving 84 (see FIG. 2) of the loom 51. As shown in FIG. 1, it is composed of the following main components.

  That is, the partial weft insertion device of the present embodiment includes an insertion device 1 that partially inserts the weft 86 between the opened warps 81, a yarn end control device 2 that controls the return position of the inserted weft 86, The weft insertion positioning device 3 for determining the insertion position of the weft 86 to be inserted by moving the apparatus 1 in the width direction of the fabric 83, and the weft for determining the return position of the weft 86 by moving the yarn end control device 2 in the width direction of the fabric 83. In order to prevent the folding positioning device 4, the insertion device 1 and the yarn end control device 2 from interfering with the beating motion of the loom 51, they are moved to the fabric 83 side at the time of beating, and when the reed 57 is retreated and the warp 81 is opened, Yarn for controlling the tension of the weft 86 inserted during one cycle in which the weft 86 is partially inserted, the insertion device back-and-forth moving device 5 and the yarn end control device 6 moving to the 84 side. A force control device 7, a control device 8 having a built-in sequential program for driving each device described above in synchronization with various sensor signals to be described later for detecting the amount of rotation of the crankshaft 59 of the loom 51, and a partial The pattern data generating device 9 generates pattern data for expressing various patterns by the weft 86 inserted into the pattern and transfers it to the control device 8. Each component of the present invention will be described below.

  As shown in FIG. 2, the insertion device 1 has a rod-like rotating body 1b attached to the tip of the rotating shaft of an insertion drive body 1a having a rotating mechanism such as a rotary air cylinder or a rotary solenoid, and the tip of the rotating body 1b is attached. An insertion plate 1c made of an arc-shaped thin plate having a radius and an arc length as the length of the rotating body 1b is attached. A thread guide 1d as a hole for guiding the weft 86 is formed at the tip of the insertion plate 1c.

  In the insertion device 1, the insertion driver 1 a rotates by a predetermined amount by a signal synchronized with the rotation of the loom 51, that is, by a predetermined synchronization signal of the proximity sensor 10 and the rotary encoder 11 attached to the crankshaft 59 of the loom 51. Hereinafter, these are referred to as a synchronization signal of the loom 51. The rotational direction for insertion may be either clockwise (CW direction) or counterclockwise (CCW direction). Here, the operation mechanism will be described on the assumption that the rotary body 1b rotates in the CCW direction when viewed from the weave 84 and the weft 86 is inserted between the warps 81. As the insertion driving body 1a rotates by a predetermined amount from the state shown in FIG. 2A to the state shown in FIG. 2B, the insertion plate 1c at the tip of the rotating body 1b has a turning radius (the length of the rotating body 1b). The weft 86 is guided between the opened warp 81 by the yarn guide 1d.

  Details of this operation are shown in an enlarged manner in FIG. 3A and 3B are views of the vicinity of the yarn guide 1d in the state of FIGS. 2A and 2B, respectively, as viewed from the fabric 83 side. As shown in FIG. 3 (B), the weft 86 is inserted into the shed K through the gap of the warp 81 constituting the upper surface of the shed K as the rotating body 1b rotates.

  The weft 86 inserted by the rotating body 1b is pulled out from the yarn cone 85, and sequentially passes through the yarn tension control device 7 and the yarn guide 1d and is connected to the yarn end 88 of the fabric 83 woven just before. Therefore, for example, when the rotating body 1b rotates in the CCW direction and the yarn guide 1d is inserted between the opened warps 81, the weft 86 is composed of the yarn tension control device 7, the yarn guide 1d, and the yarn end 88 of the fabric 83. Draw a “reverse character” that passes through the dots. Next, after the weft 86 is turned back by the yarn end control device 2 described below by the synchronization signal of the loom 51, the rotating body 1b rotates in the CW direction, and as shown in FIG. 3A, the yarn guide 1d Escapes from the opened warp 81.

  The configuration and operation of the yarn end control device 2 are shown in FIGS. 4 (A) and 4 (B). As shown in FIG. 4B, the yarn end control device 2 is configured so that the insertion plate 1c of the rotating body 1b is inserted between the warp yarns 81 and rotated in the CW direction to escape from between the warp yarns 81. In response to the synchronization signal, the pointed positioning needle 2a is inserted into the region of the tip portion of the “inverted letter” shape of the weft 86. The insertion position of the positioning needle 2a is the return position of the inserted weft 86. The yarn end control device 2 can be configured using, for example, an air cylinder or a solenoid.

  When the insertion plate 1c rotates in the CW direction and escapes from between the warps 81, the weft 86 is caught by the positioning needle 2a and held between the warps 81. The operation at this time is schematically shown in FIGS. As shown in FIG. 5 (B), the length in which the partially inserted weft 86 is woven into the fabric 83 is such that the positioning needle 2a is inserted from the insertion position P1 between the warp yarns 81 of the yarn guide 1d. The length is up to the folding position P2. The maximum length of the weft 86 inserted between the warps 81 is the opening amount of the warp 81 at the insertion point and the size of the device that can be inserted between the warps 81, that is, the length of the rotating body 1b and the insertion plate 1c. Determined by hardware constraints such as arc length. Furthermore, the insertion length of the weft 86 can be controlled from 0 to the maximum length by the operating positions of the insertion device 1 and the yarn end control device 2.

  The weft insertion positioning device 3 is a device that moves the insertion device 1 in the width direction of the fabric 83 and freely changes the insertion position P1 (see FIG. 5) of the weft 86 to be partially inserted in accordance with predetermined pattern information. is there. As shown in FIG. 6, this is composed of a weft insertion positioning device driver 3a and a stage 3b, and is inserted by moving the stage 3b on which the insertion device 1 is installed to the left and right by a known ball screw mechanism. Positioning of the weft 86 is performed.

  The weft return positioning device 4 can change the length of the inserted weft 86 according to the pattern by moving the yarn end control device 2 to the left and right with respect to the stage 3b by a known ball screw mechanism. It is a device to do. The length in which the partially inserted weft 86 is woven into the fabric 83 is from the insertion position P1 where the insertion device 1 is inserted between the warps 81 opened to the folding position P2 where the positioning needle 2a is inserted and turned back. (P2-P1). Therefore, the turn-back position P2 can be changed by the weft turn-back positioning device 4 that can move the yarn end control device 2 left and right, and the length of the weft 86 to be woven can be controlled.

  The insertion device back-and-forth movement device 5 synchronizes the movement of the reed 57 to the fabric 83 side and the warp 81 side back and forth so that the insertion device 1 does not interfere with the beating motion of the loom 51, and the insertion device 1 is moved to the fabric 83. It is a device that moves back and forth up and on the warp 81. That is, when the weft 86 is inserted between the warps 81 opened by the rotation of the insertion plate 1c, the position of the insertion device 1 needs to be on the open warps 81. Further, at the time of hammering, the insertion device 1 needs to be on the fabric 83 side so as not to come into contact with the collar 57. The device that performs this operation is the insertion device back-and-forth movement device 5.

  The yarn end control device back-and-forth movement device 6 synchronizes with the movement of the reed 57 moving back and forth in the fabric 83 side and the warp 81 side so that the yarn end control device 2 does not interfere with the beating motion of the loom 51. This is a device that moves the control device 2 back and forth on the fabric 83 and the warp 81. That is, the operation position for determining the return position of the weft 86 into which the yarn end control device 2 is partially inserted needs to be on the opened warp 81. Further, at the time of lashing, the yarn end control device 2 needs to be on the fabric 83 side so as not to contact the heel 57. A device that performs this operation is the yarn end control device forward / backward moving device 6. The insertion device back-and-forth moving device 5 and the yarn end control device back-and-forth moving device 6 can be configured using, for example, an air cylinder or a solenoid.

  The yarn tension control device 7 is a device that controls the tension of the weft 86 that is partially inserted. The partially inserted weft 86 is supplied from the yarn cone 85 to the inserting device 1 and is partially inserted because the tension applied to the weft 86 changes in the series of operation steps of each device described above. In order to express the design pattern with the weft 86, it is necessary to perform various tension controls. In order to do this, the yarn tension control device 7 uses a mechanism that generates a suction force using compressed air. The yarn tension is controlled in two steps: strong and weak.

  FIG. 7 is an explanatory diagram schematically showing the configuration of the yarn tension control device 7. As shown in FIG. 7, the yarn tension control device 7 has a configuration in which an air supply port 7c communicating with the hollow portion 7a is protruded from the side surface of a cylindrical main body 7b having the hollow portion 7a. Since the air supply port 7c is provided so as to be offset in the longitudinal direction of the main body 7b, when compressed air is introduced from the air supply port 7c in the direction of arrow A, the end of the hollow portion 7a on the side close to the air supply port 7c is A vacuum port 7d is formed, and the opposite end is an exhaust port 7e. Therefore, when the weft 86 is supplied to the hollow portion 7a in the direction of arrow B, tension can be applied to the weft 86 by the air pressure of the compressed air introduced into the air supply port 7c.

  Returning to FIG. 1, the control device 8 takes the signal of the sensor that obtains the synchronization signal of the loom 51 as an input signal, outputs an output signal for driving each device described above, and performs the overall operation of the partial weft insertion device. It is something to control. In the present embodiment, as a sensor for obtaining the synchronization signal of the loom 51, the proximity sensor 10 that receives the rotation origin signal from the crank shaft 59 of the loom 51 and the rotary encoder 11 for obtaining the rotation angle of the crank shaft 59 are provided. used. In the present embodiment, the interface 12 is used to relay the signal from the control device 8 to the drive unit of each device described above. The interface 12 includes a motor driver when the driving unit is a motor, a solenoid valve when the driving unit is a pneumatic control device, and a relay when the driving unit is a solenoid.

  The pattern data creation device 9 is a personal computer including a CPU 9a, a ROM 9b, a RAM 9c, and a hard disk device (HDD) 9d, as shown in FIG. 8, to which a display 91, a keyboard 92, and a mouse 93 are connected. The pattern data creation device 9 has two types of serial interfaces (USB port 9e and RS232C port 9f) for transmitting data to the control device 8. The USB port 9e transfers control software running on the control device 8, and the RS232C port 9f transfers control data from the pattern data creation device 9 to the control device 8, respectively. The control software is software that sequentially controls the various devices described above based on data of various sensors synchronized with the operation of the loom 51. The control data includes position data in the length direction of the fabric 83 (the number of picks of the weft yarn 82), positioning data of the insertion position P1 of the weft yarn 86 to be partially inserted, and the return position P2 of the inserted weft yarn 86.

  The control data is the design data creation device 9 and the design that freely draws the partial weft insertion pattern that you want to express with the input device such as the mouse 93 within the functional range of this system, and the existing photos and illustrations with the scanner digital camera etc. The read design is converted into a format in which positioning data in the width direction and length direction of the fabric 83 can be recognized by the control device 8.

  Next, the contents of the sequential control of the partial weft insertion device will be described based on a signal synchronized with the rotation of the loom 51. In the operation of the system, the control software and control data created by the pattern data creation device 9 are stored in the memory of the control device 8, and sequential control of each device is performed according to the program. The control flow will be described next.

  As described above, in the present embodiment, two sensors are attached to the crankshaft 59 of the loom 51 in order to synchronize the apparatus with the operation of the loom 51. One is a proximity sensor 10 that inputs the timing at which the loom beats to the control device 8. Using this signal as a trigger, one cycle of the sequential program starts. The other sensor is the rotary encoder 11. When the crankshaft 59 rotates once, the rotary encoder 11 also rotates one time, and a pulse train is output according to the rotation. The number of pulses per rotation is constant. The control device 8 counts the number of pulses, obtains the rotation angle of the crankshaft from the integrated value, determines the drive timing of each device, and outputs a drive signal to each device. The signals from these two sensors are input to the input port of the control device 8. In particular, the data of the rotary encoder 11 is input to the high-speed counter of the control device 8.

  The weft insertion positioning device 3 is a ball screw transmission mechanism using a pulse (or servo) motor, and the insertion device 1 accurately moves the stage 3b placed thereon from side to side. The insertion position P1 inserted between the warp yarns 81 opened by the insertion device 1 is calculated in advance by the pattern data creation device 9 according to the width of the fabric 83, and the amount of movement of the stage 3b is calculated from the insertion position P1. The The control device 8 controls the right and left movement of the insertion device 1 based on the insertion position P1 transferred from the pattern data creation device 9 as control data and stored in the memory.

  The weft return positioning device 4 is a ball screw transmission mechanism using a pulse (or servo) motor, and accurately moves the yarn end control device 2 from side to side. For the turn-back position P2 of the weft 86 by the yarn end control device 2, the weft insertion length is calculated from the pattern data calculated in advance by the pattern data creation device 9, and the movement amount of the yarn end control device 2 is calculated based on this. The The control device 8 controls the left and right movement of the yarn end control device 2 based on the folding position P2 transferred as control data from the pattern data creation device 9 and stored in the memory.

  Next, the sequential control executed by the control device 8 will be described using the timing chart of FIG. As shown in FIG. 9, the proximity sensor 10 is turned on at the beat timing T0 of the loom 51 and the sequential program of the control device 8 is started. At the start of this sequential program, the weft insertion positioning device 3 and the weft return positioning device 4 are not moved, and the yarn tension control device 7 controls the tension of the weft 86 with “weak”.

  The rotation angle R1 of the crankshaft 59 (at the timing T1 at which the reed 57 is beaten and retreats toward the warp 81, the insertion device back-and-forth moving device 5 and the yarn end control device back-and-forth moving device 6 are driven. 57, the insertion device 1 and the yarn end control device 2 that have been on the fabric 83 advance toward the warp yarn 81. Also at this time, the yarn tension control device 7 reduces the tension of the weft 86 to “weak”. Set.

  The insertion drive body 1a of the insertion device 1 rotates by a predetermined amount at the rotation angle R2 of the crankshaft 59 (timing T2 at which the warp 81 begins to open). Along with this, the insertion plate 1c at the tip of the rotating body 1b rotates, and the weft 86 is guided between the opened warps 81 by the yarn guide 1d at the tip. At this time, the yarn tension control device 7 sets the tension of the weft 86 to “strong”.

  The weft partially inserted by the yarn guide 1d of the insertion device 1 at the rotation angle R3 of the crankshaft 59 (timing T3 when the opening of the warp 81 is completed and the rotation of the rotating body 1b of the insertion device 1 is completed). The positioning needle 2 a of the yarn end control device 2 is inserted into the “vertical“ U ”-shaped tip portion 86 of the yarn 86, that is, the turn-back position P 2 of the weft 86. Also at this time, the yarn tension control device 7 sets the tension of the weft 86 to “strong”.

  At a rotation angle R4 of the crankshaft 59 (timing T4 when the insertion of the positioning needle 2a of the yarn end control device 2 is completed), the rotating body 1b of the insertion device 1 rotates in the direction opposite to the insertion direction, and between the warps 81 The insertion plate 1c is made to escape from. At this time, the weft 86 is caught by the inserted positioning needle 2 a and held between the warps 81. Also at this time, the yarn tension control device 7 sets the tension of the weft 86 to “strong”.

  At a rotation angle R5 of the crankshaft 59 shaft (timing T5 when the reverse rotation of the rotating body 1b of the insertion device 1 is completed), a backward signal is output to the insertion device back-and-forth movement device 5, and the insertion device 1 moves from the warp 81 side. , Retreat to the fabric 83 side. Also at this time, the yarn tension control device 7 sets the tension of the weft 86 to “strong”.

  At a rotation angle R6 of the crankshaft 59 (timing T6 when the insertion device 1 completes retraction from the warp 81 side to the fabric 83 side), a retraction signal is output to the yarn end control device forward / backward movement device 6 to control the yarn end. The apparatus 2 moves backward from the warp 81 side to the fabric 83 side. Also at this time, the yarn tension control device 7 sets the tension of the weft 86 to “strong”.

  Thread end control that is inserted between the warps 81 and hooks the wefts 86 at the rotation angle R7 of the crankshaft 59 (timing T7 when the yarn end control device 2 starts retreating from the warp 81 side to the fabric 83 side). The positioning needle 2a of the device 2 is raised. At this time, the yarn tension control device 7 sets the tension of the weft 86 to “weak”. In addition, after this timing T7, the closing of the warp 81 is started, and the hammering is performed after the closing.

  Also, during this time T7 to the next timing T2, the weft insertion positioning device 3 and the weft turn-back positioning device 4 are driven, and the insertion device 1 and the yarn end control device 2 are moved to the left and right in preparation for the next insertion of the weft 86. Moved in the direction. By repeating the above control, wefts 86 can be appropriately inserted into the fabric 83 according to the pattern data.

  Next, control data creation processing in the pattern data creation device 9 will be described. Control data for controlling the weft insertion positioning device 3 and the weft return positioning device 4 is created in advance by the pattern data creating device 9 and transferred to the control device 8. The data created by the pattern data creation device 9 can be input by a design desired to be created by an input means such as a mouse 93, or can be handled by design data input from an external input device such as a scanner or a digital camera. The pattern data creation device 9 converts these input images into geometric pattern data that can be expressed by this device, and creates data of the insertion position P1 by the weft insertion positioning device 3 and the folding position P2 by the weft folding positioning device 4. To the control device 8.

  FIG. 10 is a flowchart showing processing executed by the CPU 9a of the pattern data creation device 9 based on a program stored in the hard disk device 9d. In the band-like area displayed on the display 91 in association with the fabric 83, the design (insertion area into which the weft 86 is to be inserted) is input as described above, and a predetermined transmission command is input from the keyboard 92 or the mouse 93. This process is started.

  When the process is started, first, in S1 (S represents a step: the same applies hereinafter), the symbol data input as described above is read. In subsequent S2 and S3, the coordinates of the insertion position P1 and the folding position P2 are calculated as follows based on the position of the insertion area in the band-shaped area corresponding to the fabric 83.

  The position set by the weft insertion positioning device 3 is the insertion position P1 (X1, Y1) of the weft 86 that is partially inserted by the insertion device 1. Here, assuming that the left end is 1 when the warp 81 is viewed from the pre-weaving 84 and the right end is represented by the total number of warps Xn, X1 represents the value of the number of warps during this period. If Y1 represents the number of wefts of one repeat in the longitudinal direction of the fabric 83 as 1 to Yn, Y1 represents the value of the number of wefts in the meantime.

  However, when a plurality of insertion devices 1 are installed in the loom 51, all the devices move in principle, so that the insertion position P1 can be set by setting the coordinates of one insertion device 1 and other devices. Positioning is performed in conjunction. However, it is also possible to control each device individually. In S2, the coordinates of the insertion position P1 of each insertion position of the weft 86 are sequentially calculated in this way.

  The position set by the weft return positioning device 4 is a return position P2 (X2, Y1) at which the weft 86 is turned back by the yarn end control device 2. Here, assuming that the left end is 1 when the warp 81 is viewed from the front 84, and the right end is represented by the total number of warps Xn, X2 represents the value of the warp during this period. If Y1 represents the number of wefts of one repeat in the longitudinal direction of the fabric 83 as 1 to Yn, Y1 represents the value of the number of wefts in the meantime. When the insertion device 1 rotates in the CCW direction as viewed from the weave 84 and the weft 86 is inserted, X2 is larger than X1.

  However, when a plurality of yarn end control devices 2 are installed in the loom 51, in principle, each device moves in the same manner as the insertion device 1, so the folding position P2 sets the coordinates of one insertion device 1. As a result, positioning is also performed in conjunction with other devices. Since the turn-back position P2 can control the plurality of weft turn-back positioning devices 4 independently or independently, X2 can be freely set by a plurality of devices. In S3, the coordinates of the folding position P2 of each insertion position of the weft 86 are sequentially calculated in this way.

  Thus, when all the coordinates of P1 and P2 are calculated, the process proceeds to S4, the calculated coordinates are transmitted to the control device 8 as control data, and the process ends. By the above processing, for example, as illustrated in FIGS. 11A, 11B, and 11C, a woven fabric 83 rich in design in which various designs are formed by the wefts 86 different from the wefts 82 is obtained. be able to. Moreover, since the weft 83 obtained in this way has the wefts 86 inserted only in a part in the width direction, it is possible to reduce the weight while ensuring the above-described design. Furthermore, by using a functional material having light transmission and heat generation as the weft 86, it is possible to obtain a woven fabric 83 that can efficiently perform its function. A woven fabric 83 that can also be obtained.

  In the above embodiment, the insertion device 1 is the weft insertion means, the yarn end control device 2 is the yarn end control means, the weft insertion positioning device 3 is the insertion position moving means, and the weft return positioning device 4 is the return position moving. The insertion device back-and-forth moving device 5 and the yarn end control device back-and-forth moving device 6 are used as retracting means, the yarn tension control device 7 is used as tension control means, the proximity sensor 10 and the rotary encoder 11 are driven as sensors, and the control device 8 is driven. The control device corresponds to the hard disk device 9d as a storage medium. Of the above-described processing by the pattern data creation device 9, S2 and S3 correspond to coordinate conversion processing, and S4 corresponds to transmission processing.

  Furthermore, the present invention is not limited to the above embodiment, and can be implemented in various forms without departing from the gist of the present invention. For example, in the above embodiment, the case where the partial weft insertion device of the present invention is applied to a so-called dobby-type shuttle loom has been described as an example, but in various looms such as a jacquard loom, a gripper loom, a rapier loom, a jet loom, Moreover, it can be applied with almost no change in configuration. For example, by mounting the insertion device 1 and the yarn end control device 2 on the existing various looms integrally with the weft insertion positioning device 3 and the like, the same operations and effects as in the above embodiment can be obtained.

  In the above embodiment, the insertion device 1 and the yarn end control device 2 are moved back and forth to prevent interference with the collar 57. However, the rotation direction of the insertion driver 1a and the insertion direction of the positioning needle 2a are prevented. It is also conceivable to prevent interference with the reed 57 without moving the insertion device 1 and the yarn end control device 2 back and forth by arranging them diagonally.

  Furthermore, the weft insertion means may insert a weft by reciprocating linearly, for example. However, in the above-described embodiment, the rotating body 1b and the insertion plate 1c reciprocate in an arc shape around the rotation axis provided outside the shed K along the length direction of the fabric 83. Can be inserted into the shed K from the direction perpendicular to the surface formed by the upper warp 81, and after insertion into the shed K, the weft 86 can be inserted in the direction along the upper and lower surfaces formed by the warp 81. The weft 86 can be guided. For this reason, in the said embodiment, the insertion of the weft 86 can be performed very efficiently. Furthermore, as the storage medium of the present invention, various forms can be considered in addition to elements such as ROM and RAM. For example, it may be a CD-ROM, floppy disk, or the like, a program cartridge that can be inserted into a card slot, or a file server on the Internet.

It is explanatory drawing which represents roughly the structure of the loom with which the partial weft insertion apparatus to which this invention was applied was mounted | worn. It is explanatory drawing showing the structure and operation | movement of the insertion apparatus of the partial weft insertion apparatus. It is explanatory drawing which expands and represents the thread guide vicinity of the insertion apparatus. It is explanatory drawing showing a structure and operation | movement of the yarn end control apparatus of the said partial weft insertion apparatus. It is explanatory drawing which represents typically the operation | movement of insertion of a weft and a return | turnback. It is a top view showing the structure of the weft insertion positioning device and the weft return positioning device of the partial weft insertion device. It is explanatory drawing showing the structure of the thread tension control apparatus of the partial weft insertion apparatus. It is a block diagram showing the structure of the pattern data creation apparatus. It is a timing chart showing the sequential control of the said partial weft insertion apparatus. It is a flowchart showing the process in the said pattern data creation apparatus. It is a top view which illustrates the textile fabric in which the pattern was formed by insertion of a weft.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Insertion device 1a ... Insertion drive body 1b ... Rotating body 1c ... Insertion board 1d ... Yarn guide 2 ... Yarn end control device 2a ... Positioning needle 3 ... Weft insertion positioning device 4 ... Weft return positioning device 5 ... Insertion device back-and-forth movement device DESCRIPTION OF SYMBOLS 6 ... Yarn end control device Back-and-forth movement device 7 ... Yarn tension control device 8 ... Control device 9 ... Pattern data creation device 9d ... Hard disk device 10 ... Proximity sensor 11 ... Rotary encoder 51 ... Loom 55 ... ５７ 57 ... ８１ 81 ... Warp 82 , 86 ... Weft 83 ... Textile K ... Higuchi

Claims (10)

Used in a loom comprising a weft supply means for supplying wefts through a shed and a reed for striking the wefts supplied by the weft supply means to form a woven fabric, supplied by the weft supply means A partial weft insertion device for inserting an insertion weft different from the weft to be inserted into a part of the fabric in the width direction,
A weft insertion means for inserting the insertion weft into the shed through a gap between one side of the shed constituting the shed when the shed is opened;
A partial weft insertion device comprising: The weft insertion means inserts the insertion weft by reciprocating in the shed through the warp gap,
Thread end control means for defining the return position of the insertion weft inserted through the other gap of the warp on one side constituting the shed and inserted into the shed and inserted by the weft insertion means;
The partial weft insertion device according to claim 1, further comprising: A folding position moving means for moving the yarn end control means in the width direction of the fabric;
An insertion position moving means for moving the weft insertion means in the width direction of the fabric;
The partial weft insertion device according to claim 2, further comprising: At the time of beating, the weft insertion means and the yarn end control means are retracted to a position where they do not interfere with the reed, and when the reed opening is opened, the weft insertion means and the yarn end control means are inserted into the insertion weft. And retracting means for projecting to a position where the folding position can be defined,
The partial weft insertion device according to claim 2 or 3, further comprising: The said weft insertion means reciprocates in an arc shape centering on the rotating shaft provided along the length direction of the said textile fabric on the outer side of the said shed. Partial weft insertion device. 6. The partial weft insertion device according to claim 1, further comprising tension control means for controlling the tension of the insertion weft inserted by the weft insertion means. A sensor for detecting the rotation amount of the crankshaft of the loom;
Drive control means for driving and controlling each means based on a sequential program based on the detection signal of the sensor;
The partial weft insertion device according to any one of claims 1 to 6, further comprising: A storage medium storing a software program for creating a sequential program used in the partial weft control device according to claim 7,
When an insertion region in which the insertion weft is to be inserted is drawn in the belt-shaped region associated with the woven fabric, the lengthwise and widthwise coordinates in the belt-shaped region of the both ends of the insertion region are expressed as the insertion weft. A coordinate conversion process for converting to the coordinates representing the insertion position and the folding position of
A transmission process for transmitting the converted coordinate value to the drive control means;
A storage medium storing a software program for executing the program. A woven fabric formed by supplying wefts through the shed and hammering the wefts,
A woven fabric characterized in that an insertion weft different from the weft is inserted into a part of the woven fabric in the width direction. The woven fabric according to claim 9, wherein the insertion weft is inserted by the partial weft insertion device according to any one of claims 1 to 7.