JP5415501B2 - Yarn feeder for flat knitting machine - Google Patents

Description

  The present invention relates to a yarn feeding device for a flat knitting machine, and more particularly, to a yarn feeding device for an interlocking bar type flat knitting machine.

  When weaving the fabric with a flat knitting machine, a special motif pattern is knitted on the fabric using a plurality of motif pattern yarn feeders. In order to effectively knit a complex motif pattern on the fabric, a normal flat knitting machine controls the movement operation of the motif pattern yarn feeder using a computer. To prevent the lower weaving needle from hooking the yarn guided by the yarn guide part of the motif pattern yarn feeder when the motif pattern yarn feeder moves or after finishing the pattern knitting, the motif pattern In designing the yarn feeding device, the yarn guide yarn is supplied to the weaving needle and at the same time the motif pattern is knitted, and the yarn guide is removed from the position so that the knitting needle does not catch the yarn guide yarn. Prepare the state.

  The traditional motif pattern yarn feeder mainly removes the yarn of the yarn guide from the position of the knitting needle using a method of swinging in a biased manner. For example, US Pat. No. 6,981,393 of Patent Document 1 discloses a yarn feeder for a flat knitting machine (Yarn Feeders of Flat Knitting Machine), and an outer shell body of the yarn feeder included therein is disclosed. In addition, it is combined on the guide rail of the road thread arranged in the upper part of the needle bed in a slidable state, and the interlocking mechanism is provided with a mechanism for performing interlocking with selectivity. The outer shell of the yarn feeding device is provided with a conversion mechanism that converts the yarn supply port into a yarn supply position and a standby position and swings, and the conversion mechanism swings with the outer shell of the yarn feeder. And an intermediate portion for supporting the yarn supply rod by moving the pivot up and down. In addition, a yarn supply port is formed at the lower end of the yarn supply rod, a swing operation portion is formed at the middle portion, and the elastic force that rises is overcome at the upper end, and the yarn supply port is lowered to the yarn supply position. A pressing operation part is formed. In addition, a setting device is provided to set the lifting and returning direction of the swing operation part. When the thread supply rod at the thread supply port at the thread supply position is lowered, the setting is changed to the lifting and returning direction of the swing operation part set by the setting device. To do.

  There is a design in which the yarn supply rod is moved by, for example, following the yarn supply rod by a gear, in addition to causing the yarn supply rod to swing unbalanced by using the oscillation of the pressing selection rod as described above. The yarn feeding device for a flat knitting machine disclosed in European Patent No. EP1788132 of Patent Document 2 moves in the vertical direction along a guide rail of the yarn feeding device by a transmission pulley arranged on a slide of a triangular seat. And a yarn feeding arm that moves from the work position to at least one work stop position and returns to the original position. The yarn feeding device includes an adjusting member used for at least one yarn feeding arm. The adjusting member is provided with a tooth portion, and acts on the second adjusting member by a small gear to adjust the movement of the yarn feeding arm.

  As can be understood from the various designs that follow the above-mentioned yarn feeding arm, the operation system of the traditional motif pattern yarn feeding device is complicated, and various adjustment parts must be designed, and they are connected to each other. The yarn feeding arm can be swung for the first time. Therefore, an increase in manufacturing cost and processing cost is caused. Further, since there are many kinds of adjusting parts, it is easy to cause the parts to be caught in the operation process and stop the yarn feeding arm.

US Pat. No. 6,981,393 European Patent No. EP 1788132

  The main object of the present invention is to overcome the problem of increased cost caused by the complicated design and the large number of parts of traditional motif pattern yarn feeders.

  In order to achieve the above-described object, the present invention provides a yarn feeding device for a flat knitting machine that is arranged on a yarn feeding device rail and moves in a lateral direction with respect to the yarn feeding device rail. A yarn feeding device of a flat knitting machine includes a substrate that is connected to and slides on a yarn feeding device rail, a first swinging rod that is disposed on the substrate, a second swinging rod, and a yarn guide portion. The first rocking rod and the second rocking rod are supported by the first pivoting end and the second pivoting end, which are connected to the substrate, respectively, and by receiving a horizontal force. As a first press pulling end and a second press pulling end swinging in a biased manner. The yarn guide portion includes a yarn guide arm disposed between the first swing rod and the second swing rod, a first interlocking rod that is interlocked with the yarn guide arm and the first swing rod, and a yarn A guide arm and a second interlocking rod interlocked with the second swinging rod are included. The thread guide arm includes a working position in which the first press pulling end of the first swinging rod or the second press pulling end of the second swinging rod is not swinging, and the first press pulling end or the first pressing pulling end of the first swinging rod. The second press pulling end of the two swinging bars receives a horizontal force and swings eccentrically, and the first interlocking bar and the second interlocking bar interlocked thereby follow the thread guide arm and at least one stop where it tilts Includes location.

  In the embodiment, the yarn guide arm includes a guide portion, and the substrate corresponding to the guide portion includes a guide rail.

  In the embodiment, the guide rail includes two shift stages and a position limit stage arranged between the shift stages, and the position limit stage has a recess.

  In the embodiment, the guide unit is a guide roller.

  In the embodiment, the guide rail is disposed on a guide protrusion that is in close contact with the guide portion.

  In the embodiment, an elastic piece is provided on the substrate, and the yarn guide arm is provided with an upper pulling member that presses against the elastic piece and adheres the guide portion to the guide rail.

  In the embodiment, the first press pulling end includes a first switching unit, the second press pulling end includes a second switching unit, and the first switching unit and the second switching unit are connected by an interlocking spring. .

  In the embodiment, the substrate is provided with a first fixed plug and a second fixed plug, and the first switch and the second switch are respectively in the first switch and the second switch when the thread guide arm is in the working position. An adhesion surface that presses and contacts the stereotaxic plug and a hooking surface that fits the first stereotactic plug and the second stereotaxic plug when the yarn guide arm is at the stop position.

  In the embodiment, the thread guide arm is provided with a slide opening, and the substrate is provided with a fixing member that is inserted into the slide opening and restricts the stroke of the thread guide arm that rotates and tilts.

  The embodiment further includes a cover plate connected to the substrate, and the cover plate covers the first swing bar, the second swing bar, and the thread guide portion.

According to the present invention, the thread guide arm is driven by the interlocking bar structure arranged on the substrate, and the thread guide arm is pivoted to switch the working position and the stop position of the thread guide arm. Next, the effect of the yarn feeding device of the flat knitting machine of the present invention will be described.
(1) Simplify the structure of a yarn feeding device that drives and swings the yarn guide arm to reduce manufacturing and processing costs.
(2) It prevents the influence on the normal operation between the members due to the mutual interference between the structures that drives and swings the yarn guide arm, and reduces the failure rate.

It is an external view of the Example of this invention. It is a structure exploded view of the Example of this invention. It is a continuous operation | movement figure of the Example of this invention. It is a continuous operation | movement figure of the Example of this invention.

  Next, the detailed description and technical contents of the present invention will be described in combination with the drawings.

1 and 2 are an external view and a structural exploded view of an embodiment relating to a yarn feeding device of a flat knitting machine of the present invention. In the present invention applied to a flat knitting machine, at least one yarn feeder rail 10 is arranged on the flat knitting machine. The yarn feeder rail 10 is for moving the yarn feeder 20 in the lateral direction, and the yarn feeder 20 slides to a position where the yarn is fed relative to the yarn feeder rail 10. The yarn feeding device 20 of the flat knitting machine mainly includes a substrate 21 that is connected to and slides on the yarn feeding device rail 10, a first swinging rod 22, a second swinging rod 23, and a yarn that are arranged on the substrate 21. A guide unit 24 is provided. The first swing rod 22 includes a first pivot end 221 connected to the substrate 21 and a first press pulling end 222 swinging around the first pivot end 221 by receiving a horizontal force. The second swing rod 23 includes a second pivot end 231 connected to the base plate 21 and a second press pulling end 232 that swings around the second pivot end 231 as a fulcrum upon receiving a horizontal force. The thread guide portion 24 is connected to the thread guide arm 25 disposed between the first rocking bar 22 and the second rocking bar 23, and the thread guide arm 25 and the first rocking bar 22 are interlocked with each other. One interlocking rod 241 and a second interlocking rod 242 that interlocks and pivots the thread guide arm 25 and the second swinging rod 23 are included. The thread guide arm 25 includes a working position in which the first pressing pulling end 222 of the first swinging rod 22 and the second pressing pulling end 232 of the second swinging rod 23 are not swinging, and a first position of the first swinging rod 22. The first pressing pulling end 222 and the second pressing pulling end 232 of the second swinging rod 23 receive a horizontal force and swing in a biased manner, and the first interlocking rod 241 and the second interlocking rod 242 interlocked thereby are the thread guide arm. 25 includes at least one stop position where it tilts. The yarn guide arm 25 is provided with a slide opening 253, and the substrate 21 is provided with a fixing member 30 that is inserted into the slide opening 253 and restricts the tilting and rotating stroke of the yarn guide arm 25, and the yarn guide arm 25 is fixed. It swings between the working position and the stop position with the member 30 as a fulcrum.

  In order to stabilize the movement stroke of the yarn guide arm 25 between the working position and the stop position, the yarn guide arm 25 is provided with a guide portion 251, and the guide portion 251 is pressed and connected to the substrate 21 corresponding to the guide portion 251. A guide protrusion 26 is provided. The guide protrusion 26 includes a guide rail 261 for moving the guide portion 251. The guide rail 261 includes two shift stages 262 and 262a, and a position limit stage 263 disposed between the shift stages 262 and 262a. The position limiting step 263 has a hollow structure. In this embodiment, the guide unit 251 is a guide roller, and the guide roller moves between the shift stages 262 and 262 a and the position limit stage 263 along the guide rail 261. Further, an elastic piece 27 is provided on the substrate 21, and an upper pulling member 252 that applies a pulling force to the guide portion 251 so as to press the elastic piece 27 against the elastic piece 27 and closely contact the guide piece 261. Is provided.

  The first press pulling end 222 is provided with a first switching part 223, the second press pulling end 232 is provided with a second switching part 233, and the interlocking spring 28 is provided between the first switching part 223 and the second switching part 233. Connect with The first switching unit 223 and the second switching unit 233 include a contact surface 224, a contact surface 234, a hooking surface 225, and a hooking surface 235, respectively. On the outside of the first switching unit 223 and the second switching unit 233 of the substrate 21, a first fixed plug 291 and a second localization plug 292 are provided, respectively. When the yarn guide arm 25 is in the working position, the contact surface 224 and the contact surface 234 of the first switching unit 223 and the second switching unit 233 are in close contact with the first fixed plug 291 and the second localization plug 292, respectively. In addition, when the yarn guide arm 25 is at the stop position, either one of the hooking surface 225 or the hooking surface 235 of the first switching unit 223 or the second switching unit 233 inserts the first fixed plug 291 or the second fixed plug 292. To do.

  In order to protect the first swing bar 22, the second swing bar 23 and the yarn guide portion 24, the yarn feeding device 20 of the flat knitting machine further includes a cover plate 40 connected to the substrate 21. As shown in FIG. 2, the cover plate 40 covers the first rocking rod 22, the second rocking rod 23, and the yarn guide portion 24.

  3 and 4 are diagrams illustrating continuous operation according to an embodiment of the present invention. When the first press pulling end 222 of the first swing bar 22 and the second press pulling end 232 of the second swing bar 23 are not receiving a horizontal force by a switching bar (not shown) on the flat knitting machine, 3, the first switching portion 223 of the first swinging rod 22 or the second switching portion 233 of the second swinging rod 23 is located on the contact surface 224 or the contact surface 234 at the first fixed position plug 291 and the second switch 291. The working position of the thread guide arm 25 is maintained because it is in close contact with the stereotaxic plug 292. At this time, since the elastic piece 27 provides a force for pulling upward with respect to the upper pulling member 252, the guide portion 251 of the yarn guide arm 25 presses and closely contacts the position limit step 263, and temporarily the position limit step 263. It is localized in the hollow structure. When the first switching portion 223 of the first rocking rod 22 or the second switching portion 233 of the second rocking rod 23 receives the action of a switching rod (not shown), the first switching corresponding to the first press pulling end 222 is performed. The second switching portion 233 corresponding to the portion 223 or the second pressing pulling end 232 rotates and moves in the direction of the first fixed plug 291 or the second fixed plug 292. The first fixed plug 291 or the second fixed plug 292 is either the first switching unit 223 or the second switching unit 233 from the position where the first fixed plug 291 or the second positioning plug 292 is in close contact with the contact surface 224 or the second contact unit 233. It enters the surface 235 and forms a mating state therewith. Further, the first rocking rod 22 and the second rocking rod 23 are driven to tilt and rotate. When the first rocking rod 22 and the second rocking rod 23 are tilted and rotated, the thread guide that connects the first rocking rod 241 and the second rocking rod 242, the first rocking rod 22 and the second rocking rod 23. The arm 25 also swings correspondingly and changes from the working position to the stop position. This is as shown in FIG. At this time, the guide portion 251 of the yarn guide arm 25 leaves the recess structure of the position limiting step 263 and enters the shift steps 262 and 262a. In this embodiment, the shift stages 262 and 262a have an inclined structure, whereby the yarn guide arm 25 is rotationally fixed with the fixing member 30 as a fulcrum, and indicates a stop position in an inclined swinging state. If it is desired to return the yarn guide arm 25 to the original working position, the first swing bar 22 is generated by a reverse horizontal force provided to the first press pulling end 222 or the second press pulling end 232 by a switching bar (not shown). The second rocking rod 23 is rotated in the opposite direction, and the first interlocking rod 241 and the second interlocking rod 242 are interlocked to return the thread guide arm 25 to the original working position.

  As described above, the yarn feeding device of the flat knitting machine of the present invention uses the interlocking bar system to swing the yarn guide arm between the working position and the stop position, and is compared with a conventional motif pattern yarn feeding device. Then, the structure is relatively simple, and the manufacturing and processing costs can be effectively reduced. Further, mutual interference between members that tilt and swing the yarn guide arm is prevented, and the failure rate is reduced.

DESCRIPTION OF SYMBOLS 10 Yarn feeder rail 20 Yarn feeder 21 Substrate 22 First swing rod 221 First pivot attachment end 222 First press pull end 223 First switching part 224 Contact surface 225 Hook surface 23 Second swing rod 231 Second pivot Landing end 232 Second pressing pulling end 233 Second switching portion 234 Contact surface 235 Hooking surface 24 Thread guide portion 241 First interlocking rod 242 Second interlocking rod 25 Thread guide arm 251 Guide portion 252 Upper pulling member 253 Slide opening 26 Guide protrusion Body 261 Guide rail 262, 262a Shift stage 263 Position limit stage 27 Elastic piece 28 Interlocking spring 291 First fixed plug 292 Second fixed plug 30 Fixing member

Claims (11)

The yarn feeding device of the flat knitting machine, which is arranged on the yarn feeding device rail and moves in the lateral direction with respect to the yarn feeding device rail,
A substrate connected to the yarn feeder rail and sliding it;
First pivot end and second pivot end connected on the substrate, first pressing pulling end and second pressing which receive a horizontal force and swing with the first pivot end and second pivot end as fulcrums first swing rod and a tow end and a second rocker arm,
A thread guide arm disposed between the first rocking bar and the second rocking bar, a first interlocking bar interlocked with the thread guide arm and the first rocking bar, a thread guide arm and a second And a second interlocking rod pivotally connected to the swinging rod, and the thread guide arm has a first pressing pulling end of the first swinging rod and a second pressing pulling end of the second swinging rod not yet provided. The first interlocking rod interlocked by the swinging work position, the first pressing pulling end of the first swinging rod, and the second pressing pulling end of the second swinging rod receiving a horizontal force and swinging partially When the second interlock rod driven the yarn guide arm, the yarn feeding device of the flat knitting machine, wherein the yarn guide section, that it is constituted by including at least one stop position yarn guide arm is inclined.   The yarn supplying device for a flat knitting machine according to claim 1, wherein the yarn guide arm includes a guide portion, and the substrate corresponding to the guide portion includes a guide rail.   The yarn feeding device for a flat knitting machine according to claim 2, wherein the guide rail includes two shift stages and a position limiting stage provided between the shift stages.   The yarn feeding device for a flat knitting machine according to claim 3, wherein the position limiting step has a structure with a depression.   The yarn feeding device for a flat knitting machine according to claim 2, wherein the guide portion is a guide roller.   The yarn feeding device for a flat knitting machine according to claim 2, wherein the guide rail is disposed on a guide protrusion that is in close contact with the guide portion.   The flat knitting according to claim 2, wherein an elastic piece is provided on the substrate, and the yarn guide arm is provided with an upper pulling member that presses against the elastic piece and closely contacts the guide portion with the guide rail. Machine yarn feeder.   The first press pulling end includes a first switching unit, the second press pulling end includes a second switching unit, and the first switching unit and the second switching unit are connected by an interlocking spring. A yarn feeding device for a flat knitting machine according to claim 1.   The substrate is provided with a first fixed plug and a second fixed plug, and the first switch and the second switch are respectively provided with the first fixed plug and the second fixed plug when the thread guide arm is in the working position. The flat knitting machine according to claim 8, further comprising: a close contact surface that is pressed and contacted; and a hooking surface that fits the first fixed plug and the second fixed plug when the yarn guide arm is at the stop position. Yarn feeding device.   2. The flat knitting according to claim 1, wherein the yarn guide arm is provided with a slide opening, and the substrate is provided with a fixing member that is inserted into the slide opening and restricts a stroke in which the yarn guide arm tilts and rotates. Machine yarn feeder.   2. The yarn feeding device according to claim 1, further comprising a cover plate coupled to the substrate, wherein the cover plate covers the first swing bar, the second swing bar, and the yarn guide portion. Yarn feeder for flat knitting machines.

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