JP2001295149A - Method and apparatus for producing twisted fancy yarn and twisted fancy yarn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide both a method and an apparatus for producing a twisted fancy yarn freely changing the number of twists of a winding yarn per unit length of a core yarn in the twisted fancy yarn in the longitudinal direction, and to provide the twisted fancy yarn for knitted and woven texture capable of giving a specific design in weaving. SOLUTION: In this apparatus for producing the twisted fancy yarn 10, comprising a hollow spindle 2 which is rotatably supported and has an inner hole through which the core yarn 3 is passed, a bobbin 5 which is attached to the spindle 2 and wound with the winding yarn 4, a spindle rotation apparatus 7 for rotating the spindle 2, a winding yarn guide auxiliary tool 6 for guiding the winding yarn 4 on the bobbing 5 in the direction of the tip of the spindle 2 and a twisted yarn sending apparatus 9 for twisting the winding yarn 4 on the core yarn 3 in the vicinity of the tip of the spindle 2 to form a twisted yarn 8 and sending out the twisted yarn at a fixed speed, a change gear 12 for changing the sending out velocity of the twisted yarn 8 from a low-speed side to a high-speed side is attached to the twisted yarn sending out apparatus 9 and a program setting apparatus 13 for outputting a speed change signal of the sending out speed of the twisted yarn 8 based on a fixed program is connected to the change gear 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a twisted decorative yarn for producing a gold-silver yarn or other decorative yarn by twisting a flat yarn or other winding yarn on a core yarn. The present invention relates to a twisted decorative yarn manufacturing apparatus and a twisted decorative yarn obtained by the manufacturing method.

[0002]

2. Description of the Related Art As a method for producing a twisted decorative yarn, for example, as disclosed in Japanese Patent No. 2818770 invented by the same inventor as the present invention, the base hole is provided in an inner hole of a hollow spindle rotatably supported. A core yarn is inserted from the end to the tip, and a bobbin around which a winding is wound is mounted on the spindle concentrically, and the spindle is rotated at a required speed in the winding direction of the winding and the winding on the bobbin is rotated. A method in which the yarn is guided in the direction of the spindle tip via a winding yarn guide aid, and the wound yarn is twisted to the core yarn in the vicinity of the spindle end to form a twisted yarn and send the twisted yarn at a required speed, which has been more widely used than before. It is used.

Further, as an apparatus for manufacturing a twisted decorative yarn for carrying out the above-mentioned manufacturing method, for example, as disclosed in the above-mentioned patent gazette, a core is rotatably supported and inserted into an inner hole from a base end to a front end thereof. A hollow spindle through which the thread is inserted, a bobbin around which the bobbin is wound concentrically with the spindle and a spindle rotating device for rotating the spindle at a required speed in the winding direction of the bobbin; Normally used is a winding guide device that guides the winding yarn toward the spindle tip, and a twist yarn sending device that sends the twist yarn formed by twisting the winding yarn to the core yarn near the tip of the spindle at a required speed. Have been.

[0004]

However, in the embodiment of the method and the apparatus for manufacturing a twisted decorative yarn disclosed in the above-mentioned patent gazette, the number of twists of the core yarn per unit length is determined by the length of the core yarn. Since the winding direction is always constant, the winding state of the winding yarn in the obtained twisted decorative yarn is regular and has little change.Therefore, when weaving using the twisted decorative yarn, it is possible to give a unique design change to the knitting structure. It was difficult. The problem to be solved by the present invention is to provide a method and an apparatus for manufacturing a twisted decorative yarn capable of freely changing the number of twists of the core yarn per unit length of the twisted decorative yarn in the length direction of the core yarn. In addition, it is an object of the present invention to provide a twisted decorative yarn capable of giving a unique design change to a knitting structure during weaving.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided a method for manufacturing a twisted decorative yarn, comprising inserting a core yarn from a base end to a distal end into an inner hole of a rotatably supported hollow spindle, and simultaneously inserting the core yarn into the hollow spindle. A bobbin around which the winding is wound concentrically is mounted, the spindle is rotated at a required speed in the winding direction of the winding, and the winding on the bobbin is guided toward the tip of the spindle via a winding guide aid, In a method for manufacturing a twisted decorative yarn in which a wound yarn is twisted around a core yarn near a tip of a spindle to form a twisted yarn and send the twisted yarn at a required speed, the sending speed of the twisted yarn is adjusted based on a predetermined program. By alternately shifting the speed to the low speed side and the high speed side, the number of twists of the core yarn per unit length is varied in the length direction of the core yarn in a manner based on the program. It is set to. In the above configuration, when the sending speed of the twisted yarn is on the low speed side, the number of twists of the core yarn per unit length is relatively large, and the wound yarn exhibits a relatively fine winding mode. When the delivery speed is on the high speed side, the number of twists of the core yarn per unit length is relatively small, and the winding yarn has a relatively coarse winding mode. In accordance with the density of such twisting of the winding yarn, the winding gap of the winding yarn changes, and accordingly, the visual recognition mode of the core yarn passing through the gap also slightly changes.

[0006] In the above-mentioned manufacturing method, the core yarn is a staged yarn, a plurality of single yarns dyed in a single color, different colors or shades are aligned and combined, and the aligned yarn is twisted. Or a core yarn having a non-uniform thickness in its length direction. In these cases, the winding gap of the winding yarn is reduced. The visual recognition mode of the passed core yarn is further unique. On the other hand, the wound yarn may be a flat foil yarn having a metallic luster, and in this case, the metallic luster of the wound yarn and the visual recognition mode of the core yarn passing through the winding gap of the wound yarn are synergistic. Work in a more effective way.

An apparatus for manufacturing a twisted decorative yarn according to the present invention is an apparatus for performing the method for manufacturing a twisted decorative yarn, wherein the core yarn is rotatably supported and has an inner hole from a base end to a front end thereof. A hollow spindle that has been inserted, a bobbin around which a winding thread is wound concentrically with the spindle,
A spindle rotating device that rotates the spindle at the required speed in the winding direction of the winding thread, a winding guide aid that guides the winding thread on the bobbin in the direction of the spindle tip, and twists the winding thread to the core thread near the spindle tip. In a twisted yarn manufacturing device comprising a twisted yarn sending device for sending a twisted yarn formed at a required speed, a transmission device for shifting the sending speed of the twisted yarn to a low speed side and a high speed side is attached to the twisted yarn sending device. A program setting device for outputting a speed change signal of the sending speed of the twisted yarn based on a predetermined program is connected to the speed change device. In the manufacturing apparatus, the transmission is operated by a shift signal output from the program setting device, and the sending speed of the twisted yarn by the twisted yarn sending device is shifted to a low speed side or a high speed side based on a predetermined program.

[0008] As a specific example of the manufacturing apparatus, a twisting yarn sending device includes a twisting yarn driving roller that contacts and runs the twisting yarn, a low speed driving shaft for rotating the twisting yarn driving roller at low speed, and a high speed rotation of the twisting yarn driving roller. A high-speed drive shaft for causing the transmission device to rotate, and a low-speed-side clutch interposed between the rotation shaft of the twist drive roller and the low-speed drive shaft; and a transmission between the rotation shaft of the twist drive roller and the high-speed drive shaft. And a program setting device for outputting a speed change signal of the twisting yarn sending speed to the low speed clutch and / or the high speed clutch for connecting or disconnecting the power. You may. In the case of the above configuration, a shift signal of the sending speed of the twisted yarn is input to the low speed side clutch and the high speed side clutch from the program setting device, whereby the twisted yarn drive roller is power-connected to one of the low speed drive shaft and the high speed drive shaft. At the same time, the other is cut off, and the sending speed of the twisted yarn is shifted to a low speed side or a high speed side based on a predetermined program.

As the program setting device, for example,
A timing plate that is rotated at a constant speed and whose on-off patterns are arranged in a ring concentrically with the center of rotation based on a predetermined program, an on-off pattern on the timing plate is detected at a predetermined position, and the detection signal is twisted. And a detector that outputs the transmission speed as a shift signal. In the case of the above configuration, the transmission is operated by a detection signal composed of an on-off pattern output from the detector of the program setting device, whereby the sending speed of the twisted yarn by the twisted yarn sending device is reduced according to the on-off pattern. The speed is shifted to the high-speed side or the high-speed side. When the timing plate is used, the same on-off pattern is repeatedly generated for each rotation.

[0010] The on-off pattern is formed of a large number of holes formed in the timing plate in a ring at a predetermined pitch, and pins inserted into specific holes in the row of holes. May be detected as an on-off pattern. In this case, the on-off pattern is changed by changing the arrangement of the pins with respect to the row of holes, thereby changing the setting of the shift program.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic side view for explaining the structure of an apparatus for manufacturing a twisted decorative yarn according to the present invention. In FIG. 1, a tapered hollow spindle 2 is rotatably supported on a support table 1, and a core thread 3 is inserted into the inner hole of the spindle 2 from its base end to its tip.
A bobbin 5 around which the winding thread 4 is wound is mounted, and above the bobbin 5 is mounted a winding thread guide aid 6 for guiding the winding thread 4 on the bobbin 5 toward the distal end of the spindle 2.

A spindle rotating device 7 composed of a drive belt for rotating the spindle 2 at a required speed in the winding direction of the winding yarn 4 is disposed below and below the spindle 2 so as to be able to come and go. On the upper side, a twisted yarn sending device 9 for sending a twisted yarn 8 formed by twisting the winding yarn 4 to the core yarn 3 at a required speed is arranged, and downstream thereof,
A winding bobbin 11 for winding the twisted decorative yarn 10 as a finished product is arranged.

Further, the twisted yarn sending device 9 has a twisted yarn 8
Transmission 12 for shifting the sending speed of the gear to a low speed side and a high speed side
The transmission 12 is connected to a program setting device 13 for outputting a transmission signal of the sending speed of the twisted yarn 8 based on a predetermined program.

In the above construction, the spindle 2 is rotated at a required speed in the winding direction of the winding thread 4 by the spindle rotating device 7, and the bobbin 5 and the winding thread guide aid 6 are also rotated integrally therewith. The core yarn 3 is pulled out from the tip through an inner hole of the spindle 2 and is rotated by a bobbin 5.
The upper winding yarn 4 is twisted around the core yarn 3 near the tip of the spindle 2 via the winding yarn guide aid 6, and the thus formed twisted yarn 8 is twisted at a required speed by the twisted yarn sending device 9. It is sent out and finally wound up on the winding bobbin 11.

On the other hand, a transmission signal of the sending speed of the twisted yarn 8 is input to the transmission device 12 from the program setting device 13, whereby the twisting yarn sending device 9 changes the sending speed of the twisted yarn 8 to the lower speed or the higher speed based on a predetermined program. Side, and the winding pattern of the winding thread 4 on the core thread 3 becomes uneven in a predetermined pattern. FIG. 4 is a schematic front view illustrating a twisted decorative yarn obtained by the decorative yarn manufacturing method according to the present invention. For convenience of illustration, the diameter of the core yarn 3 is slightly exaggerated with respect to that of the wound yarn 4. I have. In the figure, (A) is a twisted decorative yarn 10 in which a winding yarn 4 (indicated by a thick solid line) is twisted around a core yarn 3 obtained by aligning and combining a plurality of single yarns, and (B) is a long yarn. 1 shows a twisted decorative yarn 10 using a core yarn 3 having a non-uniform thickness in the width direction, and in each case, a winding pattern of the winding yarn 4 on the core yarn 3 has a predetermined pattern of density. In addition, the core yarn 3 may be a yarn other than the combined yarn, and the winding yarn 4 may be a flat foil yarn.

[0016]

FIG. 2 is a schematic side view of an apparatus for manufacturing a twisted decorative yarn according to an embodiment of the present invention. In the same drawing, on the extension of the tip of the spindle 2, there is disposed a twisting yarn drive roller 15 which comes into contact with and runs on the twisting yarn 8, and a winding bobbin 11 is arranged downstream thereof. A low-speed drive shaft 17 and a high-speed drive shaft 18 are individually arranged in parallel with the rotation shaft 16 of the twisting yarn drive roller 15 (all shafts are rotated by 90 degrees for easy understanding of the arrangement between the shafts). Are constantly rotating at a low speed and a high speed, respectively, by a driving source (not shown). Rotary shaft 1 of twisted yarn drive roller 15
A first belt-pulley transmission 20 and a second belt-pulley transmission 21 are interposed on the low speed drive shaft 5, the low speed drive shaft 17 and the high speed drive shaft 18, respectively. The members cooperate to constitute the twisted yarn sending device 9 of the present invention.

Further, a low-speed electromagnetic clutch 22 and a high-speed electromagnetic clutch 23 are respectively provided on the rotating shaft 16 of the yarn driving roller 15 and the first belt-pulley transmission 20 and the second belt-pulley transmission 21. It is interposed. These members cooperate to constitute the transmission 12 of the present invention. The low speed side electromagnetic clutch 22 and the high speed side electromagnetic clutch 23 receive a speed change signal of the sending speed of the twisted yarn 8 from the program setting device 13, whereby the twisted yarn drive roller 15 is driven by one of the low speed drive shaft 17 and the high speed drive shaft 18. The transmission speed of the twisted yarn 8 is shifted to a low speed side or a high speed side based on a predetermined program. The configuration other than the above in the present embodiment is the same as that shown in FIG.
Description is omitted.

FIG. 3 is a schematic side view including a cross-sectional view of a timing plate of an example of a program setting device which can be used in the device for manufacturing a twisted decorative yarn according to the present invention. In the figure,
A large number of holes 26 (shown only in a part of the lower region in the drawing) are formed in the timing plate 25 rotated at a constant speed in a ring at a predetermined pitch in the plate thickness direction. The pin 27 is fitted into the specific hole 26, so that an on-off pattern is annularly arranged on the timing plate 25 concentrically with the center of rotation based on a predetermined program.

A swing arm 28 is arranged along the outer periphery of the timing plate 25, and the swing arm 28 can swing around a support shaft 30 at a base end parallel to the rotation shaft 29 of the timing plate 25. The tip roller 31 is constantly urged by a spring (not shown) in a direction in contact with the outer periphery of the timing plate 25. Therefore, the swinging arm 28 has a solid line and an alternate long and short dash line depending on whether or not the tip roller 31 contacts the pin 27 on the outer periphery of the timing plate 25, that is, depending on the presence or absence of the pin 27 on the outer periphery of the timing plate 25. In this case, two swing positions shown by are taken.

A support 33 for supporting a movable contact 32 connected to a power supply is connected to the middle of the swing arm 28, and two fixed contacts 34 and 35 are arranged with the movable contact 32 interposed therebetween. The fixed contacts 34 and 35 are connected to a low-speed side shift signal input portion and a high-speed side shift signal input portion of the transmission 12, respectively. The low speed side shift signal input portion and the high speed side shift signal input portion in the transmission 12 correspond to the low speed side electromagnetic clutch 22 and the high speed side electromagnetic clutch 23 in the embodiment shown in FIG.

In the above configuration, the swing arm 28 adopts two swing positions according to an on-off pattern depending on the presence or absence of the pin 27 on the timing plate 25, and therefore, based on a predetermined program, whereby the support 33 is And the movable contact 32 is displaced so as to come into contact with one of the fixed contacts 34, 35, and the transmission 12 operates to the low speed side or the high speed side, whereby the twisting yarn sending device 9 sets the sending speed of the twisting yarn 8 to a predetermined value. The speed is shifted to the low speed side or the high speed side based on the program. The swing arm 28, the movable contact 32 and the fixed contacts 34, 35, etc., cooperate to detect an on-off pattern on the timing plate 25 at a predetermined position and to transmit a detection signal to change the sending speed of the twisted yarn 8. This constitutes a detector that outputs a signal.

[0022]

According to the present invention, there is provided a twisted decorative yarn capable of freely changing the number of twists per unit length of the core yarn in the twisted decorative yarn in the length direction of the core yarn. A manufacturing method and a manufacturing apparatus can be provided, and thereby, a twisted decorative yarn that gives a unique design change to a knitting structure during weaving can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic side view illustrating the configuration of a twist decorative yarn manufacturing apparatus according to the present invention.

FIG. 2 is a schematic side view of a twist decorative yarn manufacturing apparatus according to an embodiment of the present invention.

FIG. 3 is a schematic side view including a cross-sectional view of a timing plate of an example of a program setting device that can be used in the apparatus for manufacturing a twist decorative yarn according to the present invention.

FIG. 4 is a schematic front view illustrating a twisted decorative yarn obtained by the decorative yarn manufacturing method according to the present invention.

[Explanation of symbols]

 Reference Signs List 2 spindle 3 core thread 4 winding thread 5 bobbin 6 winding thread guide aid 7 spindle rotating device 8 twist thread 9 twist thread sending device 10 twist decoration thread 12 transmission device 13 program setting device

Claims (9)

[Claims] 1. A core thread is inserted from the base end to the tip of an inner hole of a hollow spindle rotatably supported, and a bobbin wound with a winding thread is mounted on the spindle concentrically with the spindle. The yarn is rotated at the required speed in the winding direction of the winding yarn, and the winding yarn on the bobbin is guided in the direction of the spindle tip via the winding yarn guide aid, and the winding yarn is twisted to the core yarn near the tip of the spindle to form a twisted yarn. In the method for manufacturing a twisted decorative yarn in which the twisted yarn is sent at a required speed while being formed, the sending speed of the twisted yarn is alternately shifted to a low speed side and a high speed side based on a predetermined program, thereby forming a core yarn. A method for manufacturing a twisted decorative yarn, characterized in that the number of twists per unit length is varied in the length direction of the core yarn in a manner based on the program. 2. A yarn prepared by arranging and combining a plurality of single yarns whose core yarns are dyed in stages, dyed in a single color, different colors, or shades, and a twisted yarn obtained by twisting the aligned yarns. The method for producing a twisted decorative yarn according to claim 1, which is selected from the group consisting of: 3. The method for producing a twist decorative yarn according to claim 1, wherein the core yarn has an uneven thickness in a length direction thereof. 4. The method according to claim 1, wherein the winding yarn is a flat foil yarn having a metallic luster. 5. An apparatus for carrying out the method for manufacturing a twisted decorative yarn according to claim 1, 2, 3 or 4, wherein the core yarn is rotatably supported and is provided in an inner hole from a base end to a front end thereof. , A bobbin wound concentrically mounted on the spindle and wound with a bobbin, a spindle rotating device for rotating the spindle at a required speed in a winding direction of the bobbin, and a bobbin on the bobbin. Manufacture of twisted decorative yarn consisting of a winding yarn guide aid that guides the yarn in the direction of the spindle tip, and a twisted yarn sending device that sends out a twisted yarn formed by twisting the wound yarn around the tip of the spindle to the core yarn at a required speed In the apparatus, a transmission for shifting the sending speed of the twisted yarn to a low speed side and a high speed side is attached to the twisted yarn sending device, and a shift signal of the sending speed of the twisted yarn is output based on a predetermined program. Twisted fancy yarn production apparatus, wherein a program setting device linked to the transmission. 6. A twist yarn driving roller for causing the twist yarn sending device to contact and run the twist yarn, a low speed drive shaft for rotating the twist yarn drive roller at a low speed, and a high speed drive shaft for rotating the twist yarn drive roller at a high speed. A low-speed-side clutch interposed between the rotation axis of the twist drive roller and the low-speed drive axis, and a high-speed clutch interposed between the rotation axis of the twist drive roller and the high-speed drive axis. 6. The program setting device according to claim 5, comprising a side clutch, wherein the program setting device outputs a speed change signal of the sending speed of the twisted yarn to the low speed side clutch and / or the high speed side clutch for connecting or disconnecting the power. Equipment for the production of twisted decorative yarn. 7. A timing plate, wherein the program setting device is rotated at a constant speed, and an on-off pattern is circularly arranged on the basis of a predetermined program concentrically with the center of rotation;
7. The apparatus according to claim 5, further comprising a detector for detecting an on / off pattern on the timing plate at a predetermined position and outputting a detection signal as a speed change signal of the sending speed of the twisted yarn. 8. An on-off pattern is formed by a number of holes formed in a timing board in a ring at a predetermined pitch and pins inserted into specific holes in the row of holes. The apparatus according to claim 7, wherein the presence or absence of the upper pin is detected as an on-off pattern. 9. A twisted decorative yarn produced by the method for producing a twisted decorative yarn according to claim 1, 2, 3, or 4.