JP4292285B2 - Belt-like weft supply device and method - Google Patents

Description

  The present invention relates to a belt-like weft supply apparatus and method for producing a woven fabric by supplying a belt-like weft such as a spread yarn obtained by opening a fiber bundle to a weaving machine.

  Conventionally, carbon fibers, aramid fibers, glass fibers, and the like used as reinforcing materials in fiber reinforced composite materials are provided in a state in which a single fiber having a diameter of several μm is bundled in the thousands to tens of thousands. . Since the strength of the fiber is exhibited in the length direction, it is necessary to arrange the single fibers in different directions in order to perform planar reinforcement, and the fabric is used as a reinforcing material in the form of a fabric. In a woven fabric, since the weft and the warp intersect, it is considered that the weft and the warp are preferably flat (see, for example, Patent Document 1).

  As a process for making the fiber bundle into a flat shape, there is a fiber opening process in which the thickness is set to one to several pieces and arranged in a width of several mm to several tens mm. An apparatus and a method for manufacturing a woven fabric using a spread yarn subjected to the spread treatment for warp and weft are also disclosed (for example, see Patent Documents 2 and 3). There has also been proposed an apparatus for supplying a strip-shaped fiber bundle that has been subjected to a fiber opening process to a weaving machine as wefts by a certain length (for example, see Patent Document 4).

Japanese Patent Laid-Open No. 7-300739 Japanese Patent No. 2983531 JP 2003-253547 A JP 2003-82564 A

  At the time of weaving, it is necessary to cross the weft yarns one by one sequentially with the warp yarns in which a plurality of yarns are arranged beforehand. Even if the yarn is wound and supplied in a reel-like state, a plurality of warp yarns may be supplied at the same time, whereas weft yarns must be supplied one by one. A general automatic loom is provided with a mechanism for automatically replenishing the weft.

  However, a mechanism such as that used in an automatic loom cannot be used for flat wefts such as a strip-shaped fiber bundle that has been subjected to fiber opening treatment. If the weft supply device as disclosed in Patent Document 4 is used, weft can be stably supplied in the range of one reel, but the reel must be replaced manually, and weaving It cannot be automated.

  An object of the present invention is to provide a belt-like weft supply device and method that can continuously supply belt-like wefts such as spread yarns from a plurality of reels.

The present invention is a belt-like weft supply device for supplying a belt-like weft to a weaving machine,
A holding means capable of holding a plurality of windings of the wefts wound on the reel and capable of moving the wefts to the weft drawing position one by one;
From the reel at the pulling position of the holding means, the sending means for sending out a predetermined length to the weaving machine in advance,
Detection means for detecting the remaining amount of weft with the reel in the drawer position;
A gripping means for gripping the weft drawn from the reel at an interval when the remaining amount of the weft detected by the detection means falls below a preset condition;
Cutting means for cutting the weft gripped by the gripping means;
While holding the reel side of the disconnected weft, and controls the holding means to move the reel from a drawn-out position, and control means for controlling to move the other reel the drawer position,
A belt-like weft supply device comprising joining means for joining the tip of the weft drawn from the other reel to the end of the weft cut by the cutting means.

According to the present invention, a belt-like weft supply device for supplying a belt-like weft to a weaving machine includes a holding means, a sending means, a detecting means, a gripping means, a cutting means, a control means, and a joining means. . The holding means can hold a plurality of windings of the weft wound around the reel, and can move the wefts drawn around the plurality of reels one by one. It can be moved to the drawer position. Since the feeding means feeds the weaving machine by a predetermined length from the reel at the drawing position of the holding means, it is possible to feed the weft yarn necessary for the weaving machine. The detecting means detects the remaining amount of the weft with the reel at the drawing position, and therefore can detect whether or not the reel at the drawing position is empty. The gripping means grips the wefts drawn from the reel at an interval when the remaining amount of wefts detected by the detection means falls below a preset condition, so that the cutting means can easily cut the wefts. it can. Control means, while holding the reel side of the weft is disconnected, and controls the holding means to move the reel from a drawn-out position, and controls to move the other reel in extended position, the extended position The reel can be replaced with a reel from which the weft has not yet been drawn from the emptied reel. Since the joining means joins the ends of the wefts drawn from the other reels to the ends of the wefts cut by the cutting means, the supply of the wefts can be continuously supplied between the reels without interruption. it can.

  In the present invention, the reel side of the weft of the gripping means is provided for each reel, and gripping means is provided for the reel at the drawing position by movement of the holding means under the control of the control means. When performing the cutting by the cutting means, the reel side of the weft is gripped.

  According to the present invention, since the reel side of the gripping means is provided for each reel, the holding means holds the tip from the reel that is not in the drawing position, or the weft thread that has been cut with a reel that is almost empty. Can be gripped.

  In the present invention, the holding means is disk-shaped, and detachably holds the plurality of reels at predetermined angles on a circumference of a predetermined diameter around a central axis, and is controlled by the control means. Thus, the angle is displaced around the central axis by the predetermined angle.

  According to the present invention, a plurality of reels are mounted on the disc-shaped holding means, and the reels are sequentially moved to the drawing position by angular displacement around the central axis by a predetermined angle, and the weft yarns from the plurality of reels are continuously provided. Can be supplied automatically.

Further, the present invention is a method for supplying a weaving machine as a weft with a spread yarn in a flat band shape of a bundle of fibers,
Prepare several rolls of the open yarn wound around the reel,
The reels of the multiple-winding yarns are moved one by one to the weft drawing position, the opening yarns are drawn from the reels, and supplied to the weaving machine by a predetermined length,
When the remaining amount of spread yarn remaining on the reel is equal to or less than a predetermined condition, while holding the spread yarn drawn from the reel at intervals, the middle of the grip is cut,
While holding the reel side of the cut open yarn, move the reel on the end side of the open yarn from the draw position, move the other reel to the draw position,
This is a belt-like weft supply method characterized in that the tip of the opened yarn drawn from the other reel is joined to the end of the cut weft and the supply to the weaving machine is continued.

According to the present invention, in order to supply the weaving machine as a weft with a bundle of fibers in a flat band shape, a plurality of the unfolded yarns wound around a reel are prepared. Move the reel of multi-winding yarn to the weft draw position one by one, pull the opening yarn from the reel and supply it to the weaving machine by a predetermined length, and the remaining fiber on the reel When the remaining amount of the yarn becomes equal to or less than a predetermined condition, the middle of the grip is cut while gripping the opened yarn drawn from the reel with an interval. While holding the reel side of the cut open yarn, move the reel on the end side of the open yarn from the pull-out position, move the other reel to the pull-out position, and pull the tip of the open yarn drawn from the other reel. Are joined to the ends of the cut wefts, and the supply to the weaving machine is continued, so that the spread yarns can be continuously supplied from a plurality of reels.

  According to the present invention, the belt-like wefts wound around a plurality of reels are sequentially moved to the drawing position, the wefts necessary for the weaving machine are sent out, and when the reel at the drawing position becomes empty, the reel is cut and pulled out. Next, the next reel is moved and the front end of the weft is joined to the end of the cut weft so that the supply of the weft can be continuously supplied between the reels without interruption.

  Further, according to the present invention, the holding means provided on the reel side of the gripping means provided for each reel holds the tip from the reel that is not in the drawing position, or the reel is almost empty and cut. The end of the weft can be gripped.

  Further, according to the present invention, the disc-shaped gripping means can be angularly displaced around the central axis by a predetermined angle so that a plurality of reels can be sequentially moved to the drawing position. It can be easily exchanged at a position different from the position.

Further, according to the present invention, in a state where the spread yarn in which the bundle of fibers is formed into a flat belt is wound around the reel, it is moved to the drawing position of the weft one by one, and the spread yarn is continuously used as the weft. Can be fed to a weaving machine. When the remaining amount of spread yarn remaining on the reel falls below a predetermined condition, the middle of the grip is cut while holding the spread yarn drawn from the reel at intervals, and the reel side of the cut spread yarn is cut while holding the, the terminal side of the reel of the opened yarn is moved from the extended position to move the other reel in extended position, the tip of the opened yarn drawn from another reel, the ends of the weft being cut And the supply to the weaving machine is continued, so that the spread yarn can be continuously supplied from a plurality of reels.

  1, 2, and 3 show a schematic configuration of a belt-like weft supply device 1 that is an embodiment of the present invention. 1 is a front view, FIG. 2 is a plan view, and FIG. 3 is a view taken in the III-III direction of FIG. In the belt-like weft supply device 1, each part is supported by a frame 2, and a disk-like changer mount 3 rotates around a central axis. The changer mount 3 is rotationally driven by a changer motor 4 and is rotatably supported by a bearing 5. A clamp 6, a stamp 7 and a cutter 8 are provided in the middle of the path for sending the weft to the weaving machine. The changer gantry 3 can take six positions by, for example, angular displacement by 60 °. These six positions can be detected by the position sensor 9, for example. Each position can be identified by, for example, a 3-bit code, and the position sensor 9 detects the identification code at that position in a state where one of the six positions is a drawer position. A reel 10 can be mounted at each position, and a terminal clamp 11, a terminal fixing cylinder 12, and a pulley 13 are provided for each reel 10. An open yarn 14 can be wound around each reel 10.

  The spread yarn 14 is, for example, bundled with several thousand to several tens of thousands of single carbon fibers having a diameter of about several μm, and further spread flatly to maintain the opened shape. The size processing is also done. The open yarn 14 pulled out from the reel 10 mounted at each position of the changer mount 3 is held near the tip by the end clamp 11. The tip of the spread yarn 14 is protruded from the end clamp 11 and a double-sided adhesive tape 15 is pasted on the protruding portion. As the spread yarn 14, not only carbon fibers but also fibers that can be used as a reinforcing material in fiber reinforced composite materials such as aramid fibers and glass fibers can be used similarly. Further, not only the spread yarn 14 but also a synthetic resin film cut into a strip shape by slit processing or a ribbon-shaped woven fabric can be continuously supplied in the same manner. A reel empty sensor 16 is provided to detect whether the opened yarn 14 is sufficiently left on the reel 10 or is nearly empty. In a state or a position where the spread yarn 14 is not pulled out from the reel 10, a reel pin 17 is inserted into the reel 10 so as not to freely rotate.

  Further, the end of the belt-like weft cut and the tip pulled out from the new reel 10 are joined by using a double-sided adhesive tape 15 previously attached to the tip side. You may make it supply an adhesive agent in a part. Moreover, if it is a thermoplastic fiber, it can also be made to weld using a heating or an ultrasonic wave. It should be noted that the length of the joining portion is adjusted so that it does not enter the woven fabric but is cut off as an ear on the outside in the width direction.

  In order to continuously supply the spread yarn 14 from the reel 10, a reel drive motor 20 is provided, and the reel 10 is rotationally driven in the clockwise direction in FIG. The reel drive motor 20 is a reel drive motor moving cylinder 21 and can reciprocate in a direction approaching the reel 10 and a direction away from the reel 10. A reel pin 17 is inserted into the reel 10 at a position that is not in the drawer position of the changer mount 3 to prevent free rotation. In the drawing position, a reel pin clamp cylinder 22 and a reel pin moving cylinder 23 are provided for inserting and extracting the reel pin 17.

  The clamp 6 for the spread yarn 14 drawn from the reel 10 at the drawing position is opened and closed by a clamp cylinder 26. The stamp 7 is opened and closed by a stamp cylinder 27. The cutter 8 is operated by a cutter actuator 28.

  FIG. 4 shows the configuration of the reel 10. (A) is a front view, and (b) is a plan sectional view. The center shaft 30 is erected on the surface of the changer mount 3 in FIG. Two side plates 31 and 32 are arranged with an interval in the axial direction of the center shaft 30, and the center shaft 30 penetrates the center member 33 arranged at the center of the side plates 31 and 32. The distance between the side plates 31 and 32 is set by a spacer 34. The thickness of the spacer 34 is made to correspond to the spread width of the spread yarn 14 to be wound. In addition, you may make it the spacer 34 combine a some board | plate material. A combination of plate materials can be used for a plurality of spread widths. The side plates 31 and 32 and the spacer 34 are also provided with pin insertion holes 35. A reel pin 17 as shown in FIG. 2 can be inserted into the pin insertion hole 35.

  FIG. 5 shows an electrical configuration for controlling the belt-like weft supply device 1 of FIG. The control unit 40 includes a microcomputer and controls the operation of the belt-like weft supply device 1 according to a program created in advance. Detection signals from the position sensor 9 and the reel empty sensor 16 are input to the control unit 40. Further, from the control unit 40, the changer motor 4, the terminal fixing cylinder 12, the reel drive motor 20, the reel drive motor moving cylinder 21, the reel pin clamp cylinder 22, the reel pin moving cylinder 23, the clamp cylinder 26, the stamp cylinder 27, and the cutter actuator. A signal for controlling each of 28 is output. Further, the control unit 40 performs information communication with a weaving machine or the like via the communication interface 41, and performs operations such as driving the reel drive motor 20 in accordance with the demand for weft.

  FIG. 6 shows a control procedure for continuously supplying the spread yarn 14 from the belt-like weft supply device 1 shown in FIGS. 1 to 3 by the control unit 40 of FIG. The operation of the belt-like weft supply device 1 is started from step s0. As shown in FIG. 1, one reel 10 is manually set at the drawing position of the opened yarn 14, and the reel 10 around which the opened yarn 14 is wound is set at another position. To do. When the reel 10 is set, the end fixing cylinders 12 at other positions can be controlled manually, and the end clamp 11 is manually opened and closed until the open yarn 14 is clamped.

  In step s1, it is determined whether or not the reel empty sensor 16 detects an empty state in which the remaining amount of the spread yarn 14 remaining on the reel 10 at the drawing position decreases. If not empty, the supply of the spread yarn 14 as a weft is continued. When it is determined in step s1 that the reel 10 is empty, in step s2, a notification to interrupt the weft supply is sent to the weaving machine or the like via the communication interface 41 of FIG. In step s3, the spread yarn 14 is clamped by the clamp 6 and the end clamp 11. There is a gap between the clamp 6 and the end clamp 11. The clamp 6 operates the clamp cylinder 26 to clamp the spread yarn 14. The end clamp 11 operates the end fixing cylinder 12 to fix the end of the spread yarn 14. In step s 4, the cutter actuator 28 is operated, and the spread yarn 14 is cut by the cutter 8. Since the cutter 8 shears the spread yarn 14 that is gripped by the clamp 6 and the end clamp 11 that are gripping means, the cutter 8 can be cut reliably. The rear side of the spread yarn 14 that is cut off by the cutting continues to be gripped by the clamp 6, and the terminal side continues to be gripped by the terminal clamp 11.

  In step s5, the reel 10 is angularly displaced to the reference angle by the reel drive motor 20. The reference angle is an angle at which the reel pin 17 can be inserted into or removed from the reel 10 by the reel pin clamp cylinder 21 and the reel pin moving cylinder 23. In step s6, the reel pin 17 clamped by the drive by the reel pin clamp cylinder 21 is pushed into the pin insertion port 35 of the reel 10 by the reel pin moving cylinder 23 and inserted. In step s7, the reel drive motor 20 is moved backward by the reel drive motor moving cylinder 21 so as to be separated from the reel 10. In step s8, the changer motor 4 is driven to displace the changer mount 3 by 60 ° in the clockwise direction of FIG. The next reel 10 moves to the drawing position. When the reel 10 moves, the double-sided adhesive tape 15 attached to the tip of the opened yarn 14 held by the end clamp 11 overlaps the end of the cut opened yarn 14 held by the clamp 6. . When the stamp cylinder 27 is actuated in step s9 to close the stamp 7, the tip of the opened yarn 14 drawn from the reel 10 at the drawing position and the opened yarn 14 held by the clamp 6 by the double-sided adhesive tape 15. The end is joined. Further, the reel pin clamp cylinder 22 and the reel pin moving cylinder 23 are operated from the reel 10 newly moved to the drawing position, and the reel pin 17 is removed. Further, the reel drive motor 20 is advanced by the reel drive motor moving cylinder 21, and the pins 61 and 62 of the jig 60 attached to the tip of the rotation shaft of the reel drive motor 20 are inserted into the pin insertion holes 35 of the reel 10. And drive.

  In step s10, the clamp cylinder 26 and the end fixing cylinder 12 at the withdrawal position are controlled to open the clamp 6 and the end clamp 11 at the withdrawal position, respectively. In step s11, the weaving machine or the like is notified of the resumption of weft supply via the communication interface 41, and the weft supply is started while controlling the reel drive motor 20 in step s12, and the process returns to step s1.

  FIG. 7 shows a state in which six reels 10 are mounted on the changer base 3. It is assumed that the reel 10a from which the opened yarn 14 has not yet been drawn is held at three positions upstream of the drawing position with respect to the angular displacement in the clockwise direction. It is assumed that the reel 10b from which the opened yarn 14 is partially pulled out is held at the drawing position. It is assumed that the reel 10c determined to be empty is held on the downstream side from the drawing position. The opened yarn 14 drawn from the drawing position is supplied as a weft to the weaving machine via the dancer device 50 and the like.

  FIG. 8 shows a schematic procedure for exchanging to the next reel from the state of FIG. A is the state shown in FIG. 7, and when the reel at the drawing position becomes empty, the state B is obtained. Therefore, gripping by the clamp 6 and the terminal clamp 11 is performed, and a state C is obtained. The end clamp 11 is closed from the time when the reel 10a is mounted on the changer base 3. Next, cutting by the cutter 8 is performed and the state D is obtained. When the cutter 8 is opened, the state E is entered. When the changer gantry 3 starts angular displacement in the clockwise direction, the state F is obtained. When the next reel 10a moves to the drawer position, the state of G is entered. H indicates a state in which the stamp 7 performs bonding using the double-sided adhesive tape 15. I indicates a state where the joining is completed and the stamp 7 is opened. Next, when the stamp 6 and the end clamp 11 are opened, the state shown in J is obtained. K indicates a state in which weft supply is started.

It is a front view which shows schematic structure of the strip | belt-shaped weft supply apparatus 1 which is one Embodiment of this invention. It is a top view which shows schematic structure of the strip | belt-shaped weft supply apparatus 1 which is one Embodiment of this invention. It is the side view seen from the III-III direction of FIG. It is the front view and top sectional view which show the structure of the reel 10 of FIGS. It is a block diagram which shows the electric constitution which controls the strip | belt-shaped weft supply apparatus 1 of FIG. 6 is a flowchart showing a control procedure for continuously supplying the spread yarn 14 from the belt-like weft supply device 1 shown in FIGS. 1 to 3 by the control unit 40 of FIG. 5. It is a front view which shows the state which has mounted | wore six reels 10 with the changer mount frame 3 of FIG. FIG. 8 is a front view showing a schematic procedure for exchanging with the next reel from the state of FIG. 7.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Belt-like weft supply apparatus 3 Changer mount frame 4 Changer motor 6 Clamp 7 Stamp 8 Cutter 9 Position sensor 10, 10a, 10b, 10c Reel 11 End clamp 12 End fixing cylinder 14 Opening yarn 16 Reel empty sensor 17 Reel pin 20 Reel drive motor 21 Reel drive motor moving cylinder 22 Reel pin clamp cylinder 23 Reel pin moving cylinder 26 Clamp cylinder 27 Stamp cylinder 28 Cutter actuator 40 Control unit

Claims (4)

A belt-like weft supply device for supplying a belt-like weft to a weaving machine,
A holding means capable of holding a plurality of windings of the wefts wound on the reel and capable of moving the wefts to the weft drawing position one by one;
From the reel at the pulling position of the holding means, the sending means for sending out a predetermined length to the weaving machine in advance,
Detection means for detecting the remaining amount of weft with the reel in the drawer position;
A gripping means for gripping the weft drawn from the reel at an interval when the remaining amount of the weft detected by the detection means falls below a preset condition;
Cutting means for cutting the weft gripped by the gripping means;
While holding the reel side of the disconnected weft, and controls the holding means to move the reel from a drawn-out position, and control means for controlling to move the other reel the drawer position,
A belt-like weft supply device comprising joining means for joining the tip of the weft drawn from the other reel to the end of the weft cut by the cutting means.   The reel side of the weft of the gripping means is provided for each reel, and the gripping means provided for the reel at the drawing position is cut by the cutting means by the movement of the holding means under the control of the control means. 2. A belt-like weft supply device according to claim 1, wherein the reel side of the weft is gripped when performing the operation.   The holding means is disc-shaped, and removably holds the reels at predetermined angles on a circumference of a predetermined diameter around a central axis, and the predetermined means is controlled by the control means. The belt-like weft supply device according to claim 1 or 2, wherein the belt is displaced angularly around the central axis by an angle. A method of supplying a weaving machine as a weft to a weaving machine as a weft with a bundle of fibers in a flat band shape,
Prepare several rolls of the open yarn wound around the reel,
The reels of the multiple-winding yarns are moved one by one to the weft drawing position, the opening yarns are drawn from the reels, and supplied to the weaving machine by a predetermined length,
When the remaining amount of spread yarn remaining on the reel is equal to or less than a predetermined condition, while holding the spread yarn drawn from the reel at intervals, the middle of the grip is cut,
While holding the reel side of the cut open yarn, move the reel on the end side of the open yarn from the draw position, move the other reel to the draw position,
A belt-like weft supply method, characterized in that the tip of the opened yarn drawn from the other reel is joined to the end of the cut weft and the supply to the weaving machine is continued.

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