JP2022138703A - Method of knitting pile knitted fabric by flat-knitting machine - Google Patents

Abstract

To efficiently knit a pile knitted fabric by completing knitting with a pile yarn and a fastening yarn by a singular cam system.CONSTITUTION: A pile knitting fabric is knitted by a flat-knitting machine so that the knitting needle 1 which forms a pile loop bites only a pile yarn 33 of the pile yarn 33 and a fastening yarn 31, and the knitting yarn 1 which forms a basis of the pile knitting fabric bites both of the pile yarn 33 and the fastening yarn 31 in a course for conducting pile knitting by constituting so as to selectively switch either to a draw down route R2 capable of biting a knitting yarn with a hook of a knitting needle 1 advanced to a clearing position by receiving an action of a top cam 17 or to a passing route R1 for passing the top cam 17 while holding the knitting needle 1 at a clear position without receiving an action of a top cam 13.SELECTED DRAWING: Figure 1

Description

The present invention relates to a method of knitting a pile knitted fabric by a flat knitting machine.

A pile knitted fabric is a knitting needle on one of the front needle bed (FB) and the back needle bed (BB), and the base of the pile knitted fabric is formed by stitches made of pile yarn and shim yarn, and the pile is formed on the back side of the base. A pile loop consisting only of yarn is formed by the knitting needles of the other needle bed.

Patent Document 1 discloses a method of knitting a pile knitted fabric with a flat knitting machine having a sinker device. However, the method of knitting a pile knitted fabric described in Patent Document 1 cannot be formed with a flat knitting machine that does not have a sinker device for pulling out pile yarns.

FIG. 3 shows a method of knitting a pile knitted fabric by a method different from that of Patent Document 1. As shown in FIG. This method uses a carriage equipped with two cam systems (SYS1, SYS2). The knitting needles of FB form the base of the pile fabric, and the knitting needles of BB form pile loops. Two yarn feeders, a pile yarn feeder P and a crimson yarn feeder B, are prepared, and the pile yarn 33 is allocated to the leading cam system (SYS1) and the crimson yarn 31 to the trailing cam system (SYS2). .

In SYS1, the knitting needles of FB and BB are advanced and retracted to draw in the pile yarn 33 . At this time, the knitting needle of the FB is pulled in to such an extent that the old stitch formed in the previous course is not knocked over from the tip of the knitting needle, and is guided to the following SYS2 while maintaining this state. In SYS2, the knitting needles of BB are not operated, and only the knitting needles of FB in the above-described state are advanced and retracted again to feed the wrinkle yarn 31. - 特許庁As a result, the knitting needle of the FB draws in both the pile yarn 33 and the shim yarn 31 to knock over the old stitch. After that, although not shown, the knitting yarn is moved forward and backward with respect to the knitting needle of the BB without being supplied, and the pile yarn 33 pulled in by SYS1 is removed from the knitting needle to form a pile loop. A pile knitted fabric is knitted by repeating such knitting.

Japanese Patent Publication No. 60-59333

In the method shown in FIG. 3, in SYS1, it was necessary to adjust the position of the stitch cam or remove it so that the knitting needle of the FB does not knock over the old stitch formed in the previous course from the tip of the needle. In addition, since two cam systems are required, there are problems such as low productivity.

In the present invention, a carriage that reciprocates on front and rear needle beds on which a plurality of knitting needles are arranged has a raising cam surface for raising a butt provided on the knitting needle, and the needle raising cam advances the knitting needle to a clearing position, and the butt. Using a flat knitting machine equipped with at least one front and rear cam system equipped with a Tenzan cam that has a lowering cam surface that lowers the yarn and guides it to a lowering route that can eat the knitting yarn with the hook of the knitting needle, A pile yarn and a wrinkle yarn are supplied, and stitches of the pile yarn and the wrinkle yarn are formed by the knitting needles of one needle bed to form the base of the pile knitted fabric, and only the pile yarn that appears on the back side of the base is formed by the knitting needles of the other needle bed. In a method of knitting a pile knitted fabric by forming a pile loop consisting of
At least the cam system forming the pile loop among the cam systems,
A pull-down route that allows the butt of the knitting needle advanced to the clearing position by the needle raising cam to eat the knitting yarn with the hook of the knitting needle under the action of the Tenzan cam,
a passing route through which the butt of the knitting needle is maintained at the clearing position without receiving the action of the Tenzan cam, and a passing route through which the Tenzan cam passes,
The cam system has two yarn feeders with a phase difference in the direction of travel: a crimper yarn feeder that feeds crimped yarn on the leading side and a pile yarn feeder that feeds pile yarn on the trailing side. and assign
In a course where pile knitting is performed, the cam system on the side that forms the pile loop is switched to the above-mentioned passing route, and the pile yarn is placed below the tip of the open flap of the knitting needle, and the pile yarn is placed on the hook side of the tip of the flap. By feeding each yarn, the knitting needle eats only the pile yarn of the pile yarn and the crimper yarn,
The cam system on the side forming the base of the pile knitted fabric includes a step of guiding the knitting needle to the pull-down route so as to feed both the pile yarn and the shim yarn.

Preferably, each of the front and rear cam systems is configured to be selectively switchable between a pull-down route and a passing route to form pile loops on the front and back sides of the pile knitted fabric.

Further, in the present invention, a carriage reciprocatingly traveling on the front and back needle beds on which a plurality of knitting needles are arranged has a raising cam surface for raising a butt provided on the knitting needle, and the needle raising cam advances the knitting needle to a clearing position; Using a flat knitting machine equipped with at least one cam system having a lowering cam surface for lowering the butt and a Tenzan cam for guiding to a lowering route where the knitting yarn can be eaten by the hook of the knitting needle, pile Feed the yarn and the shimed yarn,
The base of the pile knitted fabric is formed by the stitches of the pile yarn and the shim yarn with every other knitting needle of one needle bed, and the remaining every other knitting needle adjacent to the every other knitting needle of the one needle bed. A method of knitting a pile knitted fabric by forming pile loops made only of pile yarns appearing on the back side of the base,
cam system,
A pull-down route that allows the butt of the knitting needle advanced to the clearing position by the needle raising cam to eat the knitting yarn with the hook of the knitting needle under the action of the Tenzan cam,
a passing route through which the butt of the knitting needle is maintained at the clearing position without receiving the action of the Tenzan cam, and a passing route through which the Tenzan cam passes,
The cam system has two yarn feeders with a phase difference in the direction of travel: a crimper yarn feeder that feeds crimped yarn on the leading side and a pile yarn feeder that feeds pile yarn on the trailing side. and assign
In a course in which pile knitting is performed, the knitting needles forming the pile loop are guided to the passing route, and the pile yarn is fed to the lower side of the tip of the open flap of the knitting needle, and the pile yarn is fed to the hook side of the tip of the spatula. The knitting needle eats only the pile thread out of the pile thread and the crimper thread,
The knitting needle forming the base of the pile knitted fabric is guided to the pull-down route so that the knitting needle eats both the pile yarn and the shim yarn.

In the present invention, in a course for pile knitting, the cam system on the side that forms the base of the knitted fabric can draw in both the pile yarn and the shim yarn, and the cam system on the side that forms the pile loop facing the cam system. In , both the warp yarn and the pile yarn are guided along the passage route, but due to the phase difference between the preceding warp yarn and the trailing pile yarn, the warp yarn is below the tip of the open spatula, and the pile yarn is below the tip of the spatula. The hook of the knitting needle eats only the pile yarn because the yarn is fed by setting the needle to be positioned on the hook side. As a result, it is possible to complete the knitting by the pile yarn and the crimper yarn with a single cam system, and to efficiently knit the pile knitted fabric.

Also, if each of the front and rear cam systems can be selectively switched between a pull-down route and a passing route, pile loops can be formed on the front and back sides of the pile knitted fabric.

Every other knitting needle on the same needle bed is guided to the pull-down route to form the base of the pile knitted fabric with the stitches of the pile yarn and the crimper yarn, and the remaining every other knitting needle is guided to the passing route and only the pile yarn is used. Since pile loops are formed, the pile knitted fabric can be knitted with only one needle bed.

FIG. 1 is a schematic explanatory diagram showing a correspondence relationship between a knitting needle for performing pile knitting and a cam system according to the first embodiment. FIG. 2 is a diagram showing the positional relationship between the crimper yarn 31 and the pile yarn 33 with respect to the knitting needle 1 at the Y position in FIG. FIG. 3 is a diagram showing pile knitting by a conventional flat knitting machine.

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG.

In this embodiment, an example using a two-bed flat knitting machine will be described below. The flat knitting machine includes needle beds (FB, BB) on which a plurality of knitting needles 1 are arranged, a carriage on which a cam system 3 for driving the knitting needles 1 is mounted, and a plurality of yarn feeders for feeding knitting yarn to the needle beds. The drive system of the cams and pressers mounted on the cam system 3, the configuration of the needle bed, the method of selecting knitting needles, etc. are the same as those of the known flat knitting machine disclosed in Japanese Patent No. 5057996, etc., so the explanation is omitted. omitted. This embodiment is an example of a cam system capable of forming a pile loop on the back side of the base of the pile knitted fabric by providing a Tenzan cam and a half presser for forming a pile loop, which will be described later, on one of the front and rear cam systems 3. do. Therefore, a known cam system is used for knitting the base of the pile knitted fabric.

FIG. 1 is a schematic explanatory diagram showing the correspondence relationship between the cam system 3 and the knitting needle 1. As shown in FIG. A knitting needle 1 includes a needle body 5, a needle jack 7, a select jack 9 and a selector 11. - 特許庁The needle jack 7 is provided with a butt 7a for advancing and retreating the knitting needle 1, and the select jack 9 is provided with a butt 9a for selecting the A, H, and B positions. The drawing shows a state in which the select jack 9 is selected to the H position.

The cam system 3 is a cam system capable of performing knitting, tucking, and miss, but may be a compound cam system capable of transferring stitches. The figure shows a state in which the cam system 3 travels leftward to perform knitting. Cam system 3 comprises a plurality of cams acting on butt 7a and a plurality of pressers acting on butt 9a. The cam system 3 has a needle raising cam 13 in the center, a top cam 17 above it, and left and right stitch cams 15, 15 on either side of it. A presser 21, a welt presser 23, and a needle selection mechanism 25 are provided below them.

The needle raising cam 13 is a raising cam that acts on the butt 7a to raise the knitting needle 1 to the knitting position. The Tenzan cam 17 is composed of a full-height portion 17h and a half-height portion 17l. Sort into route R1. That is, the top cam 17 is composed of a portion (17h) having the same thickness as the stitch cam 15 and the needle raising cam 13 and a portion (17l) having about half the thickness, and the pressing amount of the half presser 21 to the bat 9a, which will be described later, is controlled by The welt presser 23 and the tuck presser 19 are approximately half (half-height presser). The half presser 21 is driven by a driving means such as a solenoid, and is configured to move between an operating position for pressing the butt 9a of the select jack 9 and a non-operating position for not pressing it.

In the cam system 3 forming a pile loop, the butt 9a of the select jack 9 is pushed halfway by the half presser 21, so the butt 7a of the needle jack 7 is also half sunk. As a result, the bat 7a is guided to the passing route R1 without being affected by the half-height portion 17l of the top cam 17, and then pulled by the top cam 15.

The welt presser 23 is arranged at the B position, which is the initial position for needle selection, and presses the select jack 9 not selected by the needle selection mechanism 25 to make the knitting needle 1 miss. A tack presser 19 is arranged at the A position, and a half presser 21 is arranged at the H position. Of the pair of left and right half pressers 21, the trailing half presser 21 acts on the knitting needle 1 raised by the needle raising cam 13 to form a passing route that is not affected by the half-height portion 17l of the top-mount cam 17. It guides to R1 and makes the knitting needle 1 eat the pile yarn 31, but acts so as not to eat the shim yarn 33. - 特許庁

Instead of the above, the half-height portion 17l of the top-mounted cam 17 can be switched between an operating position and a non-operating position where it can act on the butt 7a of the needle jack 7 by controlling the emergence and retraction of the half-height portion 17l by a driving means such as a solenoid. good too. However, in this case, it is not possible to perform knitting in which the formation of pile loops and the formation of normal knit loops are mixed in the course for knitting pile loops. As for the yarn feeder, a shim yarn feeder B that is arranged on the leading side and feeds the shim yarn 31 and a pile yarn feeder P that is arranged on the trailing side and feeds the pile yarn 33 are arranged on a cam. The system 3 is held in the position shown in the figure and run.

A method of knitting a pile knitted fabric using the flat knitting machine having the cam system 3 described above will be described. In the following example, the base of the pile knitted fabric is formed with FB knitting needles, and the pile loops are formed with BB knitting needles.

FIG. 1 shows the state of the BB cam system 3 forming a pile loop when the cam system 3 travels leftward. The knitting needle 1 is set to the H position, the half presser 21 on the leading side is set to the non-operating position, and only the half presser 21 on the trailing side is set to the operating position. In the cam system 3 of the FB forming the base of the pile knitted fabric, the butt 7a of the select jack of the knitting needle 1 is set to the H position, and the half presser 21 is set to the non-operating position both in the leading and trailing directions.

At the X position, the butts 9a of the select jack 9 selected to the H position of FB and BB are both acted upon by the needle raising cam 13 to move up to the clearing position. Since it is pulled down, both the shim yarn 31 and the pile yarn 33 are caught by the hook of the knitting needle 1 to form a stitch. On the other hand, on the BB, the bat 9a is half sunk by the action of the half presser 17 on the trailing side, and is guided to the passage route R1.

Since the leading shim yarn feeder B and the trailing pile yarn feeder P move with a phase difference set with respect to the advancing direction, the positional relationship between the shim yarn 31 and the pile yarn 33 with respect to the knitting needle 1 at the Y position. is in the state shown in FIG. That is, the wrinkle yarn 31 is positioned below the open spatula tip 1a of the knitting needle 1, while the pile yarn 33 is positioned above the spatula tip 1a on the hook side. As a result, the hook of the knitting needle 1 is pulled by the stitch cam 15 so that only the pile yarn 33 is eaten to form a pile loop. As a result, the knitting by the pile yarn 33 and the crimper yarn 31 can be completed with a single cam system, and the pile knitted fabric can be knitted efficiently. Thereafter, the pile yarn is removed from the knitting needle 1 by moving the knitting yarn forward and backward without supplying the knitting yarn to the knitting needle 1 of the BB on which the pile loop is held. By repeating such knitting, a pile knitted fabric (single-sided pile) having pile loops on the back side of the base of the knitted fabric can be knitted.

In addition, the FB cam system is also provided with a top-mounted cam 17 having a half-height portion and a half presser 21 to enable selection of a passing route R1 or a pull-down route R2. By switching the knitting, it is possible to knit a pile knitted fabric having pile loops on both the front and back sides of the base of the knitted fabric (double-sided pile).

As used herein, the term “shime yarn” means a yarn that is pulled together with a pile yarn by a knitting needle to form a stitch, and even if the yarn is different from the pile yarn, it is the same kind of yarn. good too.

An example of pile knitting using only one of a pair of front and rear needle beds will be described below. In this case, for example, alternate knitting needles of FB, for example, knitting needles of odd-numbered needles form the base of the pile knitted fabric with stitches of pile yarn and shimming yarn, and even-numbered knitting needles adjacent to the needles appear on the back side of the base. This is a method of knitting a pile knitted fabric by forming pile loops made only of pile yarns.

The cam system for pile knitting is configured so as to be capable of selectively switching between the pull-down route and the passing route, as in the first embodiment, and the phase difference between the shim yarn feeder and the pile yarn feeder with respect to the direction of travel. set up. In a pile knitting course, the even-numbered knitting needles are guided to the passing route to eat only the pile yarn, and the odd-numbered knitting needles are guided to the pull-down route to eat both the pile yarn and the crimper yarn. to form the base of the pile fabric.

The pile yarn is removed from the even-numbered knitting needles of the FB that hold the pile loop. By repeating such knitting, a pile knitted fabric having pile loops on the back side of the base of the knitted fabric can be knitted using only one needle bed. Furthermore, if the above-mentioned pile knitting is performed while the front and back knitted fabrics are knitted in a circular fashion using the front and rear needle beds, the base knitted fabric can be formed in a tubular shape, and pile loops can be formed inside the tubular knitted fabric. can.

1 Knitting needle 3 Cam system 5 Needle body 7 Needle jack 7a Butt 9 Select jack 9a Butt 11 Selector 13 Needle raising cam 15 Angle cam 17 Tenzan cam
19 Tuck presser 21 Half presser 23 Welt presser 25 Needle selection mechanism 31 Crimping yarn 33 Pile yarn R1 Passing route R2 Pulling route P Pile yarn feeder G Crimping yarn feeder

Claims (3)

A carriage that reciprocates on the front and back needle beds on which a plurality of knitting needles are arranged has a raising cam surface that raises a butt provided on the knitting needle, a needle raising cam that advances the knitting needle to a clearing position, and a lowering that lowers the butt. Using a flat knitting machine with at least one front and rear cam system with a cam surface and a Tenzan cam that guides the knitting yarn to a pull-down route where the hook of the knitting needle can eat the yarn, the pile yarn and the crimper are combined. A yarn is supplied, and a knitting needle of one needle bed forms a base of a pile knitted fabric with stitches of a pile yarn and a crimper yarn, and a pile loop consisting only of pile yarn appears on the back side of the base with a knitting needle of the other needle bed. In the method of knitting a pile knitted fabric by forming
At least the cam system forming the pile loop among the cam systems,
A pull-down route that allows the butt of the knitting needle advanced to the clearing position by the needle raising cam to eat the knitting yarn with the hook of the knitting needle under the action of the Tenzan cam,
a passing route through which the butt of the knitting needle is maintained at the clearing position without receiving the action of the Tenzan cam, and a passing route through which the Tenzan cam passes,
The cam system has two yarn feeders with a phase difference in the direction of travel: a crimper yarn feeder that feeds crimped yarn on the leading side and a pile yarn feeder that feeds pile yarn on the trailing side. and assign
In a course where pile knitting is performed, the cam system on the side that forms the pile loop is switched to the above-mentioned passing route, and the pile yarn is placed below the tip of the open flap of the knitting needle, and the pile yarn is placed on the hook side of the tip of the flap. By feeding each yarn, the knitting needle eats only the pile yarn of the pile yarn and the crimper yarn,
A method of knitting a pile knitted fabric by a flat knitting machine, comprising a step of guiding the knitting needle to the pull-down route in a cam system on the side forming the base of the pile knitted fabric so as to feed both the pile yarn and the shim yarn. The pile by the flat knitting machine according to claim 1, wherein each of the front and rear cam systems is configured to be selectively switchable between a pull-down route and a passing route, and pile loops are formed on the front and back sides of the pile knitted fabric. A method of knitting a knitted fabric. A carriage that reciprocates on the front and back needle beds on which a plurality of knitting needles are arranged has a raising cam surface that raises a butt provided on the knitting needle, a needle raising cam that advances the knitting needle to a clearing position, and a lowering that lowers the butt. Using a weft knitting machine equipped with at least one cam system having a cam surface and a tenzan cam that guides the knitting yarn to a pull-down route where the hook of the knitting needle can eat the knitting yarn, the pile yarn and the crimper yarn are combined. yarn feed,
The base of the pile knitted fabric is formed by the stitches of the pile yarn and the shim yarn with every other knitting needle of one needle bed, and the remaining every other knitting needle adjacent to the every other knitting needle of the one needle bed. A method of knitting a pile knitted fabric by forming pile loops made only of pile yarns appearing on the back side of the base,
A pull-down route in which the butt of the knitting needle advanced to the clearing position by the needle raising cam is subjected to the action of the Tenzan cam so that the hook of the knitting needle can eat the knitting yarn,
a passing route through which the butt of the knitting needle is maintained at the clearing position without receiving the action of the Tenzan cam, and a passing route through which the Tenzan cam passes,
The cam system has two yarn feeders with a phase difference in the direction of travel: a crimper yarn feeder that feeds crimped yarn on the leading side and a pile yarn feeder that feeds pile yarn on the trailing side. and assign
In a course in which pile knitting is performed, the knitting needles forming the pile loop are guided to the passing route, and the pile yarn is fed to the lower side of the tip of the open flap of the knitting needle, and the pile yarn is fed to the hook side of the tip of the spatula. The knitting needle eats only the pile thread out of the pile thread and the crimper thread,
A method of knitting a pile knitted fabric by a flat knitting machine, comprising a step of guiding knitting needles forming the base of the pile knitted fabric to the pull-down route so that the knitting needles eat both the pile yarn and the shim yarn.

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