JP2015127460A - Yarn feeding device for flat knitting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a yarn feeding device for a flat knitting machine which enables a knitting needle to reliably catch a yarn.SOLUTION: A yarn feeding device 1 for a flat knitting machine includes a yarn feeding arm 12 extending downward from a base stand sliding on a travel rail, and the yarn feeding arm 12 is provided with a plating yarn feeding port 14. The yarn feeding device 1 for a flat knitting machine further includes: a swing arm 2 which is supported in a freely swingable manner in a front-and-back direction with respect to the yarn feeding arm 12 and is provided with the plating yarn feeding port 14 at the lower end part thereof; a displacement member 31 which is supported in a freely slidable manner in a vertical direction with respect to the yarn feeding arm 12; and displacement operation means 37 which displaces the plating yarn feeding port 14 between a reference position and a swing position at the back via the swing arm 2 with the sliding of the displacement member 31 in the vertical direction.

Description

  The present invention relates to a yarn feeding device for a flat knitting machine, and more particularly to a yarn feeding device that can reliably perform yarn biting with a knitting needle when feeding a knitting yarn to a knitting needle.

  A yarn feeding device of a flat knitting machine includes a single yarn feeding arm that extends downward from a base that slides with respect to a running rail, and a yarn feeder is provided in the yarn feeding arm (see, for example, Patent Document 1). ). The knitting yarn from the yarn feeder is fed so as to be located in the locus when the hook that has advanced from the front and back needle beds into the tooth mouth retracts, and is taken into the hook when the knitting needle retracts. And eaten.

Japanese Patent Laid-Open No. 5-25758

By the way, depending on the knitting, it may be difficult to feed the knitting yarn from the yarn feeder into the retraction locus of the hook that has advanced into the tooth mouth.
As an example, when a knitting is performed between knit knittings in one knitting course in knitting a pattern in the middle of a knitted fabric, the knitting yarn from the yarn feeder at the time of transition from this mis knitting to knit knitting. However, the yarn tends to be fed to a high position with respect to the retraction locus of the hook. This makes it easier for the knitting yarn to come off from the retraction trajectory of the hook of the knitting needle that has advanced to the tooth opening, and there is a possibility that the yarn knitting with the knitting needle cannot be reliably performed.

  An object of the present invention is to provide a yarn feeding device for a flat knitting machine that can reliably perform yarn biting with a knitting needle.

  In order to achieve the above object, in the present invention, there is provided a yarn feeding arm that extends downward from a base that is slidably supported with respect to the running rail, and the yarn feeding arm is provided with a yarn feeding port. The yarn device is assumed. A swing arm supported so as to be swingable in a front-rear direction (hereinafter simply referred to as a front-rear direction) of a needle bed which is the front and back direction with respect to the yarn supply arm, and the yarn feeder is provided at a lower end portion; A displacement mechanism provided so as to be capable of being displaced with respect to the yarn feeding arm, and displacing the yarn feeder between a reference position serving as a reference and a forward or backward swing position via the swing arm during the displacement operation; It is characterized by comprising.

  Further, the displacement mechanism is supported by a displacement member that is slidable in the vertical direction with respect to the yarn feeding arm, and the yarn feeder is moved forward or backward from the reference position as the displacement member slides in the vertical direction. Displacement operation means for displacing between the first and second swing positions may be provided.

  Also, the displacement operating means is provided at a lower end portion of the displacement member, and supports a vertically middle portion of the swinging arm whose upper end is attached to the yarn feeding arm so as to be slidable in the vertical direction. A member, and an inclined surface portion that is provided on the yarn feeding arm and slides and guides the support member in the front-rear direction. Then, the yarn feeder is displaced between the reference position and the forward or rearward swing position along with the support member that is slidably guided along the inclined surface portion by sliding the displacement member in the vertical direction. May be.

  On the other hand, the displacement operating means is inserted through the middle part in the vertical direction of the swinging arm that opens at the lower end of the displacement member and has the upper end attached to the yarn supply arm. And a support pin that is provided at a lower end portion of the yarn feeding arm and reverses the bending of the swing arm in the front-rear direction. Then, the bending in the front-rear direction of the swinging arm accompanying the sliding of the displacement member in the up-down direction is reversed by the support pin, and the yarn feeder is moved between the reference position and the front or rear swing position. It may be displaced between.

  In addition, as the yarn feeder, an additional yarn feeder for supplying additional yarn may be applied separately from the main yarn feeder for supplying the main yarn by plating knitting.

  Furthermore, an eccentric mechanism is provided that includes an eccentric member that rotates about a horizontal shaft portion extending in the front and back direction with respect to the swing arm and has an eccentric shaft portion that is eccentric with respect to the horizontal shaft portion. The splicing yarn feeder may be located above the main yarn feeder, and may be detachably connected to the main yarn feeder via the eccentric shaft portion. Good.

  The knitting yarn is positioned at a high position by swinging the yarn feeder between the reference position and the front or rear swing position via the swing arm during the displacement operation of the displacement mechanism with respect to the yarn supply arm. However, it becomes easy to allow the knitting yarn from the yarn feeder to enter the retraction locus of the hook of the knitting needle that advances to the tooth mouth, so that the yarn can be reliably caught by the knitting needle.

  Further, the yarn feeder can be easily displaced by displacing the yarn feeder between the reference position and the forward or rearward swing position as the displacement member slides in the vertical direction with respect to the yarn feeder arm. .

  Further, the yarn feeder is displaced between the reference position and the forward or rearward swing position along with the support member that is slidably guided along the inclined surface portion by the sliding of the displacement member in the vertical direction. The yarn mouth can be reliably displaced.

  On the other hand, the yarn feeder is displaced between the reference position and the front or rear swing position by reversing the front-rear deflection of the swing arm accompanying the sliding of the displacement member in the vertical direction with the support pin. Thus, the yarn feeder can be reliably displaced.

  In addition, by applying it to the yarn feeder for splicing, which is used to feed the splicing yarn during plating knitting, the splicing yarn that is at a higher position than the main yarn is allowed to enter the retraction trajectory of the hook of the knitting needle that has advanced to the spout. It becomes easy, and the yarn wiping with the knitting needle can be performed reliably. Moreover, the splicing yarn entrapped by the knitting needle is always located on the back side of the hook from the main yarn, so that the splicing of the splicing yarn with respect to the main yarn is eliminated, and bleeding of the knitted fabric can be reliably prevented.

  Further, as the eccentric shaft is moved in the left-right direction with the horizontally long hole by rotating the eccentric member around the horizontal shaft, the connecting plate is moved vertically with respect to the shaft in the vertically long hole, and the yarn is applied to the lower end. By configuring an eccentric mechanism that slides the connecting plate having the yarn feeder in the vertical direction with respect to the yarn feeding arm, the vertical adjustment of the yarn feeder for splicing by rotation of the eccentric member can be performed smoothly. As a result, the fine adjustment of the interval and angle between the main yarn and the splicing yarn fed to the knitting needle can be performed according to the thickness, yarn type, knitting conditions, and the like of both the yarns.

It is a front view of the yarn supplying apparatus of the flat knitting machine according to the first embodiment of the present invention. FIGS. 2A and 2B are cross-sectional views taken along the line A-A in FIG. 1, in which FIG. 1A shows a state in which a splicing yarn feeder close to the main yarn feeding port is displaced to a reference position, and FIG. A state in which the splicing yarn feeder close to the yarn spout is displaced to the backward swing position, and (c) is a state in which the splicing yarn feeder separated from the main yarn splicing port is displaced to the reference position. , (D) respectively show a state in which the splicing yarn feeder separated from the main yarn feeder is displaced to the rear swing position. FIG. 2 is an explanatory diagram of a state in which the main yarn from the main yarn feeder and the splicing yarn from the splicing yarn feeder of the yarn feeding device of FIG. The latch needle hook is in the advanced state, and (b) shows the latch needle hook in the retracted state. It is a vertical side view of the eccentric member of the yarn feeder of FIG. It is a front view of the vicinity of the yarn feeding arm of the yarn feeding device of the flat knitting machine according to the second embodiment of the present invention. FIG. 6 is a cross-sectional view taken along line BB in FIG. 5, where (a) is a state in which a splicing yarn feeder close to the main yarn feeder is displaced to a reference position, and (b) is a main yarn feeding. A state in which the splicing yarn feeder close to the yarn spout is displaced to the backward swing position, and (c) is a state in which the splicing yarn feeder separated from the main yarn splicing port is displaced to the reference position. , (D) respectively show a state in which the splicing yarn feeder separated from the main yarn feeder is displaced to the rear swing position. It is a front view of the vicinity of the yarn feeding arm of the yarn feeding device of the flat knitting machine according to the third embodiment of the present invention. FIGS. 8A and 8B are cross-sectional views taken along the line CC of FIG. 7, in which FIG. 7A is a state in which a splicing yarn feeder that is close to the main yarn feeding port is displaced to a reference position, and FIG. A state in which the splicing yarn feeder close to the yarn spout is displaced to the backward swing position, and (c) is a state in which the splicing yarn feeder separated from the main yarn splicing port is displaced to the reference position. , (D) respectively show a state in which the splicing yarn feeder separated from the main yarn feeder is displaced to the rear swing position.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a front view of a yarn feeding device of a flat knitting machine according to a first embodiment of the present invention. 2 is a cross-sectional view taken along the line AA in FIG. 1, wherein (a) is a state in which the splicing yarn feeder close to the main yarn feeder is displaced to the reference position, (b). Is a state in which the splicing yarn feeder close to the main yarn feeder is displaced to the backward swing position, and (c) is a reference position of the splicing yarn feeder separated from the main yarn feeder. (D) shows a state in which the splicing yarn feeder separated from the main yarn feeder is displaced to the backward swing position.

  1 and 2, a yarn feeding device 1 performs plating knitting, and includes a base 11 that slides on a traveling rail that extends in parallel with a traveling direction of a carriage (not shown), and a lower portion than the base 11. And a single yarn supplying arm 12 attached to the lower end of the flange piece 111 extending in the direction. The yarn feeding arm 12 is provided with a main yarn feeding port 13 and an additional yarn feeding port 14 positioned above the main yarn feeding port 13, respectively. The lower end of the yarn supplying arm 12 branches left and right and extends downward, and the upper end of a substantially V-shaped main yarn supplying guide 16 is connected to the outer edge of each branch piece 15. The main yarn feeder 13 opens at the lower end of a main yarn guide hole 161 that passes through the crotch portion of the main yarn feed guide 16 in the vertical direction. Further, the yarn supplying arm 12 is fastened to the base 11 with a screw through a vertically long hole so that the main yarn supplying port 13 can be adjusted in the vertical direction.

  The yarn feeding device 1 is provided with a swing arm 2 supported so as to be swingable in the front-rear direction of the needle bed, which is the front and back direction with respect to the yarn feed arm 12, and a displacement operation with respect to the yarn feed arm 12. At the time of the displacement operation, the lower end of the swing arm 2 is set at the reference position (position shown in FIGS. 2A and 2C) and the rear swing position (position shown in FIGS. 2B and 2D). And a displacement mechanism 3 that is displaced between the two. In this case, the reference position is a position where the splicing yarn feeder 14 coincides with the main yarn feeder 13 in the front-rear direction when viewed from the side, and the rear swing position is The splicing yarn feeder 14 is the position farthest away from the main yarn feeder 13 and is closer to the reference position than the rearward swing position shown in FIGS. 2 (b) and 2 (d). Any nearby swing position is also included.

  The displacement mechanism 3 includes a displacement member 31 supported so as to be slidable in the vertical direction with respect to the yarn feeding arm 12. The displacement member 31 has a long hole 32 which is long in the vertical direction at the upper end portion thereof, and has a pair of left and right branch pieces 33 which branch left and right from a substantially central portion and extend downward substantially in parallel. The upper end portion of the displacement member 31 is fastened by a bolt 34 and a nut 35 inserted through the elongated hole 32 on one side in the left-right direction (left side in FIG. 1) of the yarn feeding arm 12. In addition, an operation piece 36 is provided at the upper end of the displacement member 31 so as to protrude forward (in FIG. 1, the front side in the drawing).

  The swing arm 2 is connected via a connecting tool 21 to a lower end portion of a connecting member 20 that is slidably supported in the vertical direction on the other side (right side in FIG. 1) of the surface of the yarn supplying arm 12. Yes. The connecting member 20 has a long hole 22 which is long in the vertical direction at the lower end portion thereof, and is screwed onto the upper portion of the connecting tool 21 by a screw member 23 inserted through the long hole 22. In addition, guide grooves 211 are provided at the left and right ends of the upper portion of the coupling tool 21 so as to slidably guide the branch piece 33 of the displacement member 31 from the front-rear direction. A hole 212 that opens downward is provided in the lower portion of the connector 21. The upper end of the swing arm 2 is inserted into the hole 212, and the swing arm 2 is fixed by a pin 213 extending in the left-right direction. Further, a yarn feeding guide 24 for splicing yarn is provided at the lower end of the swing arm 2. The splicing yarn feeder 14 opens at the lower end of a splicing guide hole 25 penetrating in the vertical direction of the splicing yarn feeding guide 24.

  Furthermore, the displacement mechanism 3 displaces the splicing yarn feeder 14 at the lower end of the swing arm 2 between the reference position and the rear swing position as the displacement member 31 slides in the vertical direction. Means 37 are provided. The displacement operation means 37 is provided at the lower end portion of the displacement member 31 and supports a support member 38 that slidably supports a midway portion in the vertical direction of the swing arm 2 and a branch piece of the yarn feeding arm 12. And an inclined surface portion 39 that slides and guides the left and right ends of the support member 38 in the front-rear direction. The upper and lower surfaces of the inclined surface portion 39 are inclined so as to be positioned rearward as they approach the lower side. The support member 38 has grooves 381 along the inclined surface portion 39 at both left and right ends thereof, and is slidably guided with respect to the inclined surface portion 39 as the displacement member 31 slides in the vertical direction.

  FIG. 3 is an explanatory diagram of a state in which the main yarn from the main yarn feeder 13 and the splicing yarn from the splicing yarn feeder 14 of the yarn feeding device 1 are entangled by the latch needle that has advanced from the front needle bed, (A) shows the state in which the hook of the latch needle has advanced, and (b) shows the state in which the hook of the latch needle has started to retract. In FIG. 3A, when performing the plating knitting with the main yarn 51 and the splicing yarn 52 respectively fed from the main yarn feeder 13 and the splicing yarn feeder 14, the knit knitting in one knitting course is performed. If a miss knitting is performed in the meantime, the splicing yarn 52 from the splicing yarn feeder 14 when shifting from the mis knitting to the knit knitting advances from the front needle bed to the tooth spout 50 and the hook 56 of the latch needle 55 The yarn tends to be fed to a high position (a position indicated by a two-dot chain line) with respect to the retraction locus. In FIG. 3, 50a is the center of the mouth.

At this time, the connecting member 20 and the displacement member 31 are deflected in the front-rear direction and elastically deformed, whereby the splicing yarn feeder 14 is displaced from the reference position to the backward swinging position. With the downward sliding, the splicing yarn feeder 14 can be easily displaced to the rear swing position. Thereby, the spun yarn 52 fed from the splicing yarn feeder 14 is moved from the position indicated by the two-dot chain line to the position indicated by the solid line in FIG. It becomes easy to enter the retreat locus, and the thread biting with the latch needle 55 can be reliably performed. In addition, as shown in FIG. 3B, the splicing yarn 52 entrapped by the latch needle 55 is always located on the back side of the hook 56 relative to the main yarn 51, and the splicing yarn 52 is inverted relative to the main yarn 51. Thus, the bleeding of the knitted fabric caused by the reversal of the splicing yarn 52 can be reliably prevented.
In the present embodiment, the latch needle 55 is used as the knitting needle, but it goes without saying that it can also be applied to a compound needle.

  Further, a scale 19 for displaying the sliding amount of the displacement member 31 in the vertical direction is provided on the inner edge of one branch piece 15 of the yarn feeding arm 12. The scale 19 is composed of projecting pieces that protrude in a chevron shape along with three inner edges of one branch piece 15. One branch piece 33 of the displacement member 31 is provided with a substantially triangular pointer 331 protruding toward the inner edge of the one branch piece 15, and the displacement member 31 is based on the position of the scale 19 pointed to by the pointer 331. The amount of sliding in the vertical direction can be visually confirmed.

  FIG. 4 shows a longitudinal side view of the eccentric member of the yarn feeding device 1. In FIG. 4, an eccentric mechanism 4 having an eccentric member 41 is provided on the upper portion of the connecting member 20. The eccentric member 41 includes an eccentric shaft n that rotates about a horizontal axis m extending in the front and back direction on the other side in the left-right direction with respect to the yarn feeding arm 12 and is eccentric with respect to the horizontal axis m. The eccentric member 41 includes a horizontal shaft portion 42 whose center is located on the horizontal axis m and an eccentric shaft portion 43 whose center is located on the eccentric shaft n. The connecting member 20 is provided so as to be displaceable in the vertical direction with respect to the yarn supplying arm 12 via the eccentric shaft portion 43 of the eccentric member 41, and the splicing yarn supply port 14 at the lower end portion of the swing arm 2 is connected to the main yarn. It can be separated from the yarn feeder 13 in the vertical direction. As a result, the yarn feeding position of the splicing yarn 52 from the splicing yarn feeder 14 is changed in the vertical direction by the eccentric mechanism 4 and the main yarn 51 from the main yarn feeder 13 fed to the latch needle 55 is added. Subtle adjustments of the vertical distance from the splicing yarn 52 from the yarn feeder 14 and the feeding angle of each other can be made according to the thicknesses, yarn types, knitting conditions, etc. of the yarns 51 and 52.

  The horizontal shaft portion 42 is integrally protruded from the enlarged diameter portion 421 accommodated between the yarn supplying arm 12 and the connecting member 20 and the back side (right side in FIG. 4) of the enlarged diameter portion 421. It consists of a head 422 having a hexagonal hole recessed at the tip that protrudes behind the thread arm 12. The head 422 is inserted through a hole 122 provided in the yarn supplying arm 12. Further, the eccentric shaft portion 43 protrudes integrally on the surface side (left side in FIG. 4) of the enlarged diameter portion 421.

  Further, the eccentric mechanism 4 includes a screwing member 44 for screwing the connecting member 20 to the yarn supplying arm 12. The screw member 44 is inserted from the back side into a screw member 442 for inserting a shaft portion 441 extending in parallel with the eccentric shaft n from the front surface side of the yarn supplying arm 12 and an insertion hole 121 of the yarn supplying arm 12, and the shaft portion 441. And a stepped nut member 443 to be screwed to the tip of the head. The insertion hole 121 opens in the same shape as the step portion 444 formed in a rectangular shape, and restrains the stepped nut member 443 so as not to rotate with respect to the yarn feeding arm 12. 2 is a washer provided between the screw member 442 and the connecting member 20.

  Furthermore, the eccentric mechanism 4 includes a vertically long hole 47 provided in the upper part of the connecting member 20 and a horizontally long hole 46 provided below the vertically long hole 47 in the left-right direction. The eccentric shaft portion 43 has an annular groove 431 and is inserted through the laterally long hole 46 and accommodated. The annular groove 431 is exposed to the surface side of the connecting member 20 when inserted into the horizontally long hole 46, and the stopper 432 is fitted to fix the eccentric shaft portion 43 to the connecting member 20 so as not to fall off. Yes. The eccentric shaft portion 43 moves in the left-right direction in the laterally long hole 46 by the rotation of the eccentric member 41 around the horizontal axis m. Further, the shaft portion 441 of the screw member 442 is inserted through the vertically elongated hole 47 and accommodated. Then, when the screw member 44 is loosened and the eccentric member 41 is rotated about the horizontal axis m, the eccentric shaft portion 43 moves in the left-right direction in the laterally long hole 46, and accordingly, the shaft portion 441 of the screw member 442 is moved. The connecting member 20 is moved up and down in the vertically long hole 47. Thereby, the up-and-down adjustment of the splicing yarn feeder 14 by the rotation of the eccentric member 41 can be performed smoothly.

  Further, on the flange piece 111 of the base 11, five yarn guides 53 for guiding the main yarn 51 and the splicing yarn 52 fed from a tension device (not shown) to the main yarn feeding port 13 and the splicing yarn feeding port 14, respectively. A provided yarn guide support 54 is attached. It goes without saying that the main yarn 51 and the splicing yarn 52 respectively fed out from the tension device may be guided to the main yarn feeding port 13 and the splicing yarn feeding port 14 by using any yarn guide 53. .

  Here, the displacement operation to the rearward swing position of the splicing yarn feeder 14 by the displacement mechanism 3 is combined with the upward / downward movement operation by the eccentric mechanism 4 and based on (a) to (d) of FIG. explain.

First, when the splicing yarn feeder 14 is displaced to the reference position by the displacement mechanism 3, as shown in FIG. 2A, the bolt 34 is loosened and the displacement member 31 is lifted up most in the long hole 32. Slide to position. Accordingly, the support member 38 is positioned at the upper end portion of the inclined surface portion 39 that is inclined forward as it approaches the upper side, and the splicing yarn feeder 14 at the lower end portion of the swing arm 2 is displaced to the reference position.
On the other hand, when the displacement yarn feeder 14 is displaced to the rear swing position by the displacement mechanism 3, the bolt 34 is loosened and the displacement member 31 is moved in the elongated hole 32 as shown in FIG. Slide to the lowest position. Accordingly, the support member 38 is positioned at the lower end portion of the inclined surface portion 39 that is inclined rearward as it approaches the lower side, and the splicing yarn feeder 14 is displaced to the rear swing position. At this time, as shown in FIGS. 2A and 2B, the splicing yarn feeder 14 has the eccentric member 41 rotated to one side around the horizontal axis m by the eccentric mechanism 4, and the shaft of the screw member 442. The connecting member 20 is moved downward in the vertically long hole 47 with respect to the portion 441, so that it is closest to the main yarn feeder 13. In this case, if the displacement member 31 is stopped in the middle of the long hole 32 and the bolt 34 is fastened, the splicing yarn feeder 14 may be displaced to an arbitrary position between the reference position and the rear swing position. Is possible.
In addition, when the splicing yarn feeder 14 that has been displaced to the reference position by the displacement mechanism 3 is moved upward by the eccentric mechanism 4, as shown in FIG. When the eccentric member 41 is loosened and rotated about the horizontal axis m to the other side, the connecting member 20 is moved upward in the longitudinal hole 47 with respect to the shaft portion 441 of the screw member 442, and the splicing yarn feeder 14 is moved to the main yarn. It is farthest from the yarn feeder 13.
On the other hand, when the eccentric mechanism 4 displaces the splicing yarn feeder 14 that is furthest away from the main yarn feeder 13 from the reference position to the rearward swing position by the displacement mechanism 3 (FIG. As shown in d), when the bolt 34 is loosened and the displacement member 31 is slid to the lowest position in the long hole 32, the support member 38 is positioned at the lower end portion of the inclined surface portion 39, and is used for splicing. The yarn feeder 14 is displaced to the rear swing position.

  Next, a second embodiment of the present invention will be described with reference to FIGS.

  FIG. 5 shows a front view of the vicinity of the yarn feeding arm of the yarn feeding device of the flat knitting machine according to the second embodiment of the present invention. 6 is a cross-sectional view taken along the line BB of FIG. 5, in which (a) is a state in which the splicing yarn feeder close to the main yarn feeder is displaced to the reference position, (b). Is a state in which the splicing yarn feeder close to the main yarn feeder is displaced to the backward swing position, and (c) is a reference position of the splicing yarn feeder separated from the main yarn feeder. (D) shows a state in which the splicing yarn feeder separated from the main yarn feeder is displaced to the backward swing position. In the present embodiment, only the configuration of the displacement mechanism will be described.

  That is, as shown in FIGS. 5 and 6, the displacement mechanism 6 includes a displacement member 61 supported so as to be slidable in the vertical direction with respect to the yarn feeding arm 17, and as the displacement member 61 slides downward. Displacement operation means 63 for displacing the splicing yarn feeder 19 between the reference position and the rear swing position is provided. The swing arm 62 has a pair of left and right branch pieces 66 that branch from the substantially central portion to the left and right and extend substantially in parallel downward, and the yarn feeding guide 18 for adding yarn is provided at the lower end of each branch piece 66. Is provided. Also in this case, the reference position and the backward swing position of the splicing yarn feeder 19 are the same as those in the first embodiment.

  The displacement member 61 has an elongated hole 611 that is long in the vertical direction at the upper end portion thereof. Further, the swing arm 62 has a vertically long hole 621 at its upper end that is long in the vertical direction. The displacement member 61 and the swing arm 62 are supported by the yarn feeding arm 17 by inserting the shaft portion 105 of the screw member 104 of the screwing member 100 of the eccentric mechanism 10 into the respective elongated holes 611 and 621. . Further, the displacement member 61 is provided with an insertion long hole 612 extending in the vertical direction through which the horizontal shaft portion 102 of the eccentric member 101 of the eccentric mechanism 10 is inserted, and the swing arm 62 has an eccentricity of the eccentric member 101. A horizontally long hole 622 is provided through which the shaft portion 103 is inserted. The lower end of the yarn supplying arm 17 branches left and right and extends downward, and the upper end of a substantially V-shaped main yarn supplying guide 85 is connected to the inner edge of the lower end of each branch piece 84. . A main yarn feed port 86 is opened at the lower end of a main yarn guide hole 851 that penetrates the crotch portion of the main yarn feed guide 85 in the vertical direction. On the other hand, the splicing yarn feeder 19 opens at the lower end of a splicing guide hole 181 that penetrates the splicing yarn supply guide 18 in the vertical direction. In FIG. 6, 106 is an annular groove provided in the eccentric shaft portion 43, and 107 is a stopper fitted in the annular groove 106. In FIG. 6, reference numeral 108 denotes a stepped nut member that is screwed to the tip of the shaft portion 441.

  The displacement operation means 63 includes a rectangular hole 64 as an insertion hole that opens at the lower end of the displacement member 61. The rectangular hole 64 is inserted in the midway portion of the swing arm 62 in the vertical direction, and is bent backward (downward in FIG. 6) with respect to the midway portion of the swing arm 62 in the vertical direction. The swing arm 62 is elastically deformed. Further, the displacement operation means 63 includes a pair of left and right support pins 65 for supporting a midway portion in the vertical direction of the splicing yarn supply guide 18 from the left and right directions at the lower end portion of the branch piece 84. Each of the support pins 65 reverses the backward deflection applied to the swing arm 62 and swings the splicing yarn feeder 19 in the front-rear direction in accordance with the deflection. At this time, when the displacement member 61 slides downward, the backward deflection applied to the swing arm 62 is reduced accordingly, and the swing arm 62 is displaced forward by the decreased deflection. Each support pin 65 reverses the bending of the swing arm 62 displaced forward. Thus, the splicing yarn feeder 19 is reliably moved from the reference position (position shown in FIGS. 6A and 6C) to the rear swing position (position shown in FIGS. 6B and 6D). Can be displaced.

  Here, the displacement operation to the rearward swing position of the splicing yarn feeder 19 by the displacement mechanism 6 is combined with the upward / downward movement operation by the eccentric mechanism 4 and based on (a) to (d) of FIG. explain.

First, when the displacement yarn feeder 19 is displaced by the displacement mechanism 6 to the reference position, as shown in FIG. 6A, the screw member 104 is loosened with respect to the shaft portion 105 in the elongated hole 611. The displacement member 61 is slid to the highest position. At this time, since the swinging arm 62 is given a relatively large backward deflection, the splicing yarn feed port 19 at the lower end of the splicing yarn feeding guide 18 reversed by the support pins 65 serves as a reference. Displace to position.
On the other hand, when the displacement yarn feed port 19 is displaced to the rear swing position by the displacement mechanism 6, the screw member 104 is loosened and the shaft portion is formed in the elongated hole 611 as shown in FIG. The displacement member 61 is slid with respect to 105 to the lowest position. As a result, the backward deflection applied to the swing arm 62 in the rectangular hole 64 is reduced, and this decrease and the deflection that displaces the swing arm 62 forward are reversed by the support pins 65. The splicing yarn feeder 19 is displaced to the rear swing position. At this time, as shown in FIGS. 6A and 6B, the splicing yarn feeder 19 is configured such that the eccentric member 101 is rotated to one side around the horizontal axis m by the eccentric mechanism 10 and the shaft of the screw member 104 is rotated. The swing arm 62 is moved downward in the vertically long hole 621 with respect to the portion 105, so that it is closest to the main yarn feeder 86. In this case, if the displacement member 61 is stopped with respect to the shaft portion 105 in the middle of the long hole 611 and the screw member 104 is tightened, the splicing yarn feeder 19 can be moved to an arbitrary position between the reference position and the rear swing position. It can also be displaced to a position.
When the splicing yarn feeder 19 that has been displaced to the reference position is moved upward by the eccentric mechanism 10, as shown in FIG. 6C, the screw member 104 is loosened and the eccentric member 101 is moved. Is rotated about the horizontal axis m to the other side, the swing arm 62 is moved upward in the longitudinally long hole 621 with respect to the shaft portion 105 of the screw member 104, and the splicing yarn feeder 19 is moved to the main yarn feeder 86. Is farthest away.
On the other hand, when the eccentric mechanism 10 displaces the splicing yarn feeder 19 that is furthest away from the main yarn feeder 86 to the backward swinging position by the displacement mechanism 6, as shown in FIG. As shown, when the screw member 104 is loosened and the displacement member 61 is slid to the lowermost position with respect to the shaft portion 105 in the long hole 611, it is applied to the swing arm 62 in the rectangular hole 64 accordingly. The backward bending is reduced, and the bending that displaces the swing arm 62 forward is reversed by the support pins 65, and the splicing yarn feeder 19 is displaced to the backward swing position.

  Next, a third embodiment of the present invention will be described with reference to FIGS.

  FIG. 7 shows a front view of the vicinity of the yarn feeding arm of the yarn feeding device of the flat knitting machine according to the third embodiment of the present invention. 8 is a cross-sectional view taken along the line CC of FIG. 7, wherein (a) is a state in which the splicing yarn feeder close to the main yarn feeder is displaced to the reference position, (b). Is a state in which the splicing yarn feeder close to the main yarn feeder is displaced to the backward swing position, and (c) is a reference position of the splicing yarn feeder separated from the main yarn feeder. (D) shows a state in which the splicing yarn feeder separated from the main yarn feeder is displaced to the backward swing position. In the present embodiment, only the configuration of the displacement mechanism will be described.

  That is, as shown in FIGS. 7 and 8, the yarn supplying arm 87 is provided with a swinging member 72 whose upper end is supported so as to be swingable in the front-rear direction via a pin 71 extending in the left-right direction. . A substantially rectangular hole 73 is provided at the lower end of the swing member 72. Further, an eccentric mechanism 9 is provided via a connecting member 75 in the middle part of the swing member 72 in the vertical direction. The swing arm 89 includes a yarn feeding guide 88 for adding yarn at the lower end. A midway portion in the vertical direction of the swing arm 89 is slidably inserted into a through hole 77 that penetrates the lower edge of the hole 73 in the vertical direction. The upper end of the swing arm 89 is led out to the hole 73 through the through hole 77, and is connected to the lower end of the swing member 72 via a connecting member 75 secured to the upper end with a screw 76. Yes.

  A displacement mechanism 8 that displaces the splicing yarn feeder 93 at the lower end of the swing arm 89 between the reference position and the rear swing position is provided in the middle of the swing member 72 in the vertical direction. ing. The displacement mechanism 8 includes a screw hole 81 that opens in the middle of the swinging member 72 in the vertical direction, and a bolt member that protrudes from the surface side of the swinging member 72 at the tip of the shaft that is screwed into the screw hole 81. 82, a nut member 83 that is screwed onto the shaft portion of the bolt member 82 from the surface side of the swing member 72, and prevents the bolt member 82 from rotating relative to the swing member 72, and a base end of the shaft portion of the bolt member 82 And a boss portion 96 that is secured from the back side of the yarn feeding arm 87 by a stopper 95 such as a washer. The swing member 72 is supported in a state where the back surface is slightly lifted by the pin 71 with respect to the front surface of the yarn supplying arm 87. Then, when the bolt member 82 is rotated counterclockwise with respect to the surface side of the yarn supplying arm 87, the swinging member 72 approaches the surface of the yarn supplying arm 87 and is inserted into the through hole 77. The arm 89 is swung rearward, and the splicing yarn feeder 93 is displaced from the reference position to the rear swinging position. The lower end of the yarn supplying arm 87 branches left and right and extends downward, and the upper end of a substantially V-shaped main yarn supplying guide 91 is connected to the inner edge of the lower end of each branch piece 90. . A main yarn feeder 92 is opened at the lower end of a main yarn guide hole 911 that penetrates the crotch portion of the main yarn feed guide 91 in the vertical direction. On the other hand, the splicing yarn feeder 93 opens at the lower end of a splicing guide hole 881 that penetrates the splicing yarn feed guide 88 in the vertical direction. Also in this case, the reference position and the backward swing position of the splicing yarn feeder 93 are the same as those in the first embodiment.

  Further, the connecting member 75 includes a vertically long hole 751 that is inserted through the shaft portion 902 of the screw member 901 of the screwing member 900 of the eccentric mechanism 9 screwed to the swinging member 72, and a side of the vertically long hole 751. And a horizontally long hole 752 for receiving and inserting an eccentric shaft portion (not shown) of the eccentric member 903.

  Here, the displacement operation of the splicing yarn feeder 93 to the rear swing position by the displacement mechanism 8 together with the vertical movement operation by the eccentric mechanism 9 is based on (a) to (d) of FIG. explain.

First, when the displacement yarn feed port 93 is displaced to the reference position by the displacement mechanism 8, as shown in FIG. 8A, the nut member 83 is loosened and then the bolt member 82 is moved to the yarn feeding arm 87. By rotating clockwise relative to the surface side, the swing member 72 swings around the pin 71 and separates from the surface of the yarn feeding arm 87. Then, the swing arm 89 inserted through the through hole 77 swings forward, and the yarn supplying port 93 at the lower end of the yarn supplying guide 88 is displaced to the reference position. At this time, the nut member 83 is fastened to the shaft portion of the bolt member 82 to prevent the bolt member 82 from rotating with respect to the swing member 72.
On the other hand, when the displacement yarn feed port 93 is displaced to the rear swing position by the displacement mechanism 8, the nut member 83 is loosened before the bolt member 82 is fed as shown in FIG. By rotating counterclockwise with respect to the surface side of the arm 87, the swinging member 72 swings around the pin 71 and approaches the surface of the yarn supplying arm 87. As a result, the swing arm 89 inserted through the through hole 77 swings backward, and the splicing yarn feeder 93 is displaced to the rear swing position. Also at this time, the nut member 83 is tightened to prevent the bolt member 82 from rotating. Further, as shown in FIGS. 8A and 8B, the splicing yarn feeder 93 has a shaft portion of the screw member 901 in which the eccentric member 903 is rotated to one side around the horizontal axis m by the eccentric mechanism 9. When the connecting member 75 is moved downward in the vertically elongated hole 751 with respect to 902, the connecting member 75 is closest to the main yarn feeder 92. In this case, if the amount of rotation of the bolt member 82 and the amount of rotation are adjusted to adjust the contact / separation amount of the swinging member 72 with respect to the surface of the yarn supplying arm 87, the splicing yarn feeder 93 swings backward from the reference position. It is also possible to displace to any position between the positions.
Further, when the splicing yarn feeder 93 that has been displaced to the reference position is moved upward by the eccentric mechanism 9, as shown in FIG. 8C, the screw member 901 is loosened and the eccentric member 903 is moved. Is rotated around the horizontal axis m to the other side, the connecting member 75 is moved upward in the vertically elongated hole 751 with respect to the shaft portion 902 of the screw member 901 and is most separated from the main yarn feeder 92.
On the other hand, when the eccentric mechanism 9 displaces the splicing yarn feeder 93 farthest from the main yarn feeder 92 from the reference position to the rear swing position by the displacement mechanism 8, as shown in FIG. As shown in d), by loosening the nut member 83 and then rotating the bolt member 82 counterclockwise relative to the surface side of the yarn supplying arm 87, the swinging member 72 swings around the pin 71 and is fed. When approaching the surface of the yarn arm 87, the swing arm 89 inserted through the through-hole 77 swings backward, and the splicing yarn feeder 93 is displaced to the rear swing position.

  In each of the embodiments, the case where the displacement mechanisms 3, 6, and 8 are applied to the splicing yarn feeders 14, 19, and 93 has been described. However, the displacement mechanisms 3, 6, and 8 may be applied to a yarn feeder provided in a single yarn feeding arm. Good. In this case, even if the knitting yarn from the yarn feeder at the time of the transition from the miss knitting to the knit knitting is fed at a high position with respect to the retraction locus of the hook, the hook of the knitting needle that advances to the tooth mouth is retracted. It becomes easy to allow the knitting yarn to enter the entry locus, and the yarn digging with the knitting needle can be reliably performed.

  In each embodiment, the splicing yarn feeders 14, 19, 93 are added to the displacement mechanisms 3, 6, 8 between the reference position and the rear swing position, and the eccentric mechanism 4 The main yarn feeder 13, 86, 92 can be separated from the main yarn feeder 13, 86, 92 via the eccentric shaft portions 43, 103. Only the displacement operation by 6 and 8 may be performed.

  In each of the embodiments, the case where the splicing yarn feeders 14, 19, 93 are displaced between the reference position and the rearmost swing position farthest backward has been described. The present invention can also be applied to a case where displacement is performed between the reference position and a rear swing position closer to the reference position than a rear swing position farthest rearward. Also, in order to make it easier for the splicing yarn fed from the splicing yarn feeder to enter the retraction locus of the hook, the splicing yarn spout is also displaced between the reference position and the forward swing position. Needless to say, it can be applied. Also applicable when the splicing yarn feeder provided on the yarn feeding arm different from the yarn feeding arm provided with the main yarn feeder is displaced between the reference position and the front or rear swing position. it can.

  Furthermore, in each embodiment, the reference position is a position where the splicing yarn feeders 14, 19, 93 coincide with each other in the front-rear direction when viewed from the side with respect to the main yarn feeders 13, 86, 92. However, the setting of the reference position is arbitrary, and when a single yarn supplying arm is provided with a main yarn supplying port and an additional yarn supplying port, a main yarn supplying port is provided for each individual yarn supplying arm. No matter where the reference position is set, regardless of whether there is a yarn feeder for splicing yarn or when a single yarn feeder is provided on a single yarn feeding arm, etc. Good.

DESCRIPTION OF SYMBOLS 1 Yarn feeder 11 Base 12, 17, 87 Yarn supply arms 13, 86, 92 Yarn supply port for main yarns 14, 19, 93 Yarn supply port for spun yarns 2, 62, 89 Oscillating arms 3, 6, 8 Displacement mechanism 31, 61 Displacement members 37, 63 Displacement operation means 38 Support member 39 Inclined surface portions 4, 10, 9 Eccentric mechanisms 41, 101, 903 Eccentric members 42, 102 Horizontal shaft portions 43, 103 Eccentric shaft portions 51 Main yarn 52 Additional yarn 55 Latch needle 56 Hook 64 Rectangular hole 65 Support pin

Claims (6)

In a yarn feeding device of a flat knitting machine comprising a yarn feeding arm that extends downward from a base that is slidably supported with respect to a running rail, and a yarn feeding port is provided in this yarn feeding arm.
A swing arm supported so as to be swingable in the front-rear direction of the needle bed, which is the front and back direction with respect to the yarn feeding arm, and a swing arm provided at a lower end portion, and provided so as to be able to be displaced with respect to the yarn feeding arm. And a displacement mechanism for displacing the yarn feeder between a reference position serving as a reference and a forward or rearward swing position via the swing arm during the displacement operation. Machine yarn feeder. The displacement mechanism is
A displacement member supported slidably in the vertical direction with respect to the yarn feeding arm;
Displacement operation means for displacing the yarn feeder between the reference position and the front or rear swing position as the displacement member slides in the vertical direction;
The yarn feeding device for a flat knitting machine according to claim 1, comprising: The displacement operation means is
A support member that is provided at a lower end portion of the displacement member and supports a midway portion in the vertical direction of the swing arm, the upper end of which is attached to the yarn feeding arm, so as to be slidable in the vertical direction;
An inclined surface portion provided on the yarn supplying arm and slidingly guiding the support member in the front-rear direction;
With
The yarn feeder is displaced between the reference position and the front or rear swing position along with the support member that is slidably guided along the inclined surface portion by sliding the displacement member in the vertical direction. The yarn feeding device for a flat knitting machine according to claim 2. The displacement operation means is
The swinging arm that is open at the lower end of the displacement member and that has the upper end attached to the yarn feeding arm is inserted through the middle of the swinging arm in the longitudinal direction. An insertion hole for imparting deflection to
A support pin that is provided at a lower end of the yarn feeding arm and reverses bending in the front-rear direction of the swing arm;
With
The bending of the swing arm in the front-rear direction accompanying the sliding of the displacement member in the up-down direction is reversed by the support pin, and the yarn feeder is between the reference position and the front or rear swing position. The yarn feeding device for a flat knitting machine according to claim 2, wherein the yarn feeding device is displaced.   The splicing yarn feeder, which feeds additional yarn separately from the main yarn feeder for feeding the main yarn by plating knitting, is applied as the yarn feeder. 5. A yarn feeding device for a flat knitting machine according to claim 4. An eccentric mechanism comprising an eccentric member that rotates about a horizontal shaft portion extending in the front and back direction with respect to the swing arm and has an eccentric shaft portion that is eccentric with respect to the horizontal shaft portion;
The splicing yarn feeder is located above the main yarn feeder, and is provided so as to be able to be separated from the main yarn feeder through the eccentric shaft portion in the vertical direction. The yarn feeding device for a flat knitting machine according to claim 5.

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