JP2017089043A - Knitting method and knitting mechanism for circular knitting machine and the circular knitting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a knitting method and a knitting mechanism, and a circular knitting machine which prevent breakage and overlapping of a yarn and a filament by avoiding welt stitch in jacquard and semi-jacquard knitting with the circular knitting machine.SOLUTION: In the present invention, only a needle selected for knitting and a needle selected for tucking are allowed to perform stitch. With regard to a needle selected for welting, stitch is invalidated by an invalidation method, and thereby the needle selected for welting does not perform stitch. As a result, a load on an old loop is suppressed, and breakage and overlapping of a yarn and a filament can be prevented.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a knitting method and a knitting mechanism of a circular knitting machine and the circular knitting machine used in various pattern knitting machines.

  A pattern knitting machine or the like that performs semi-jacquard knitting or jacquard knitting in a circular knitting machine includes a needle selection device, and performs needle selection. Needle selection refers to changing the trajectory of a knitting tool by switching a knitting tool such as a needle or a sinker to an active or inactive state. The knitting tool changes the trajectory by the needle selection device, and in the case of the needle, the knitting is performed by taking the trajectory of any one of the three knitting structures of knit, tack, and welt.

  As this needle selection method, an electromagnetic needle selection device as disclosed in, for example, Japanese Patent Application Laid-Open No. 9-111621, which combines an electromagnetic actuator, a select jack, and a locking piece is disclosed. Further, for example, a needle selection device using a piezoelectric element such as Japanese Patent Publication No. 6-94619 in which a multistage piezoelectric element actuator and a patterning jack are combined, or a multistage peg holder instead of a multistage piezoelectric element actuator is disclosed. A mechanical needle selector such as -58347 is known.

  By means of the needle selection method in these electrical and mechanical needle selection devices, it is possible to select needles for any one of knit, tack, and welt. The principle is that the needle moving by the rotation of the knitting machine is selected at the entrance portion of the cam installed in each feeder where the yarn is fed to the needle. When it is raised, it rises to a height around the center of the cam, where it is further raised, the position is kept as it is, or the yarn feeding position is selected. In other words, in the case of knit, the needle is first raised, and then the needle is further raised to receive the yarn. In the case of tack, first raise it, then keep the same position and receive the yarn. In the case of a welt, first keep the position as it is. After that, the cam at the knit / tack position is lowered by the guide of the cam, and then all the needles including the needle for the welt needle selection are stitched, and then returned to the original position to enter the next feeder.

  As a selection mechanism, when raising the needle, the needle butt is guided by the cam as it is to raise the needle, and when keeping the position as it is, the jack provided at the lower part of the needle or the needle is connected to the knitting machine. A cylinder or the like is used that is pushed in the vertical direction instead of the rotational direction, and the bat is removed from the cam, thereby invalidating the cam guide and keeping the needle in its original position.

  Depending on the machine specifications, there are those that do not select the tack needle, but various pattern knitting machines select the knitting structure for each needle by selecting the needle once or twice until the yarn feeding position. Semi-jacquard organization is possible.

JP-A-9-111621 JP 6-94619 JP 50-58347

  In order to execute jacquard or semi-jacquard knitting, a knitting structure is selected by needle selection before yarn feeding. After feeding, the knit and tack need to be stitched after receiving the yarn, so all the needles, including the welt needles, are lowered evenly by the cam guide and stitched, The cam structure goes back to the next feeder and the welt is stitched in the same way as knit and tack. However, originally welt is not fed and does not need to be stitched.

  In recent years, a higher-quality knitted fabric has been demanded, and it has been found that the stitch of the welt is a problem in order to improve the quality. As the knitting conditions become more sophisticated and complicated, the welt stitches cause yarn and filament breakage, which affects the quality of the knitted fabric.

  For example, weak yarns, hard yarns, thin yarns, etc., which are weak and easy to cut, are now used, and because the fine gauge of the knitted fabric has less room for the loop, yarn or filaments with welt stitches It became easy to break. Since the old loop in the hook of the needle of the welt needle has already been stitched and the size of the loop has been determined, if the same or more stitches are made in the subsequent welt, the burden on the old loop is large. Furthermore, because the number of knitted fabrics increases the number of welt feeders, stitching the same loop many times tends to cause breakage of yarns and filaments. In addition, even a strong yarn that does not break may cause so-called fogging in which the old loop is stretched by stitching and the latch reenters the old loop when knit.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a knitting method and a knitting mechanism for preventing yarn and filament breakage and fogging by avoiding a welt stitch and a circular knitting machine.

  The knitting method of the present invention is a knitting method by selecting a needle inserted into the needle groove in a knitted body having a needle groove of a circular knitting machine, and only stitches a knit needle and a tuck needle. The needle of the welt needle selection is characterized in that the stitch is invalidated by an invalidation method.

  According to this, since the needle of the welt needle does not stitch, the old loop that was stitched is not pulled excessively, and the burden on the old loop can be suppressed, thereby preventing breakage and fogging of the yarn / filament. be able to.

  The knitted body includes a cylinder and a dial, and the needle selection includes an electric device using an electromagnetic needle selection device, a multistage piezoelectric element actuator, and a method using a mechanical device such as a multistage peg holder. The invalidation method includes a mechanical invalidation method using a fixing member such as a protrusion or a multistage peg holder, and an electric needle selection using an electric needle selection apparatus such as an electromagnetic needle selection apparatus or a multistage piezoelectric element actuator. Invalidation method.

  Further, the knitting method of the present invention is a needle selection for selecting a needle by acting on any of a needle and a jack inserted so as to be able to engage with the same needle groove in a knitting body having a needle groove of a circular knitting machine. A knitting method in a knitting machine is characterized in that the needle of the welt needle or the butt of the jack is removed from the cam for stitching until after the stitch position to invalidate the cam guide.

  According to this method, the needle or jack of the welt needle is removed from the cam where the bat is stitched at the stitch position and does not receive the cam guide, so the needle does not stitch, so the old loop generated by stitching The load on the thread can be suppressed, and breakage and fogging of the yarn / filament can be suppressed.

  In this method, the needle or jack butt of the welt needle is removed from the cam for stitching, regardless of the timing at which the needle or jack butt is removed from the cam for stitching. You can continue to remove until after the welt needle selection, once you return the bat to the cam, and then again until after the stitch position. Here, the stitch position refers to the position of the lowest point of the cam race that draws the yarn after yarn feeding in the lateral direction, which is the direction in which the knitting machine rotates. In the vertical relationship, the hook direction of the needle is up, and the opposite tail direction is down. The height direction is the vertical direction.

  It is preferable that the needle of the welt needle or the butt of the jack is removed from the cam to be stitched immediately before the stitch position and at the height of the welt. As a result, the welt needle completely runs sideways without lowering, and it is possible to suppress breakage and fogging of the yarn / filament without imposing a burden on the loop. Of course, it is needless to say that the position above the stitch position is included in the scope of the present invention even if it is not the height of the welt.

It is preferable to remove the bat from the cam by pushing the needle or jack of the welt needle in the direction opposite to the cam.
For example, the jack itself may be pushed by directly pushing the jack butt with the peg, or indirectly by pushing the butt of the second jack that is further inserted into the same groove as the jack and can be contacted with the jack. You may push the jack into the jack. Moreover, even if it is not a peg, you may provide a protrusion member on the track | orbit which only the jack of a welt needle selection or a 2nd jack passes, and pushes in a jack or a 2nd jack uniformly. The peg may be one that can electrically control whether or not the bat is pushed in, or may be a mechanical device that is set in advance before the circular knitting machine is operated. As a result, the needle or the butt of the jack engaged with the needle is disengaged from the cam to be stitched, so that the guide to the stitch position of the cam can be invalidated.

  Further, the knitting mechanism of the present invention acts on the knitted body having a needle groove, the needle housed in the needle groove, a jack housed in the same groove as the needle, and the needle or the jack. A knitting mechanism in a circular knitting machine including a needle selector for selecting the needle, wherein the disabling means for removing the needle of the welt needle or the butt of the jack from the cam for stitching is provided from the front of the stitch position. It is characterized by being provided after the stitch position.

  According to this knitting mechanism, the needle of the welt needle or the butt of the jack is disengaged from the cam for stitching at the stitch position by the disabling means, so that the guide to the stitch position of the cam can be invalidated.

  The disabling means preferably acts when the needle butt is just before the stitch position and at the height of the welt. As a result, the welt needle completely runs sideways without lowering, and it is possible to suppress breakage and fogging of the yarn / filament without imposing a burden on the loop. Needless to say, it is within the scope of the present invention as long as it operates at a position above the stitch position, even if it is not at the height of the welt.

  Further, the disabling means is not limited to the position facing the needle or the jack, but includes the position facing the second jack further inserted in the same groove as the jack so as to be in contact with the jack. For this reason, the invalidating means is not limited to the one that directly acts on the needle or the jack, but includes the one that acts on the jack indirectly by acting on the second jack.

  The disabling means is preferably one that pushes the needle or jack directly or indirectly. For example, the jack itself may be pushed by directly pushing the butt of the jack with the peg, or the jack may be pushed indirectly by pushing the butt of the second jack with the peg. Moreover, even if it is not a peg, you may provide a protrusion member on the track | orbit which only the jack of a welt needle selection or a 2nd jack passes, and pushes in a jack or a 2nd jack uniformly. The peg may be one that can electrically control whether or not to take the position to push the bat, or may be a mechanical device that is set in advance before the circular knitting machine is operated. As a result, the needle guide or the jack butt engaged with the needle is disengaged from the cam for stitching, and the cam guide can be invalidated.

  The circular knitting machine of the present invention is characterized by having the knitting mechanism.

It is a cam holder front view of the knitting apparatus in Example 1 of this invention, and the side view of the needle | hook and jack corresponding to it. 1A is a cross-sectional view of the knitting device at position 1, FIG. 1B is a cross-sectional view of the knitting device at position 2 in FIG. 1, FIG. 1C is a cross-sectional view of the knitting device at position 1 ′ in FIG. 1 is a cross-sectional view of a knitting device at a position 2 ′ in FIG. It is a cam holder front view of the knitting apparatus in Example 2 of this invention, and the side view of the needle | hook and jack corresponding to it. (a) Cross-sectional view of the knitting device at position 1 in FIG. 3, (b) Cross-sectional view of the knitting device at position 2 in FIG. 3, (c) Cross-sectional view of the knitting device at position 3 in FIG. 3, (d) FIG. FIG. 4 is a cross-sectional view of the knitting device at the 1 ′ position of FIG. 3, and (e) a cross-sectional view of the knitting device at the 3 ′ position of FIG.

  Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a cam holder of a knitting device according to a first embodiment of the present invention and a side view of a needle and a jack corresponding thereto. In this embodiment, a needle groove provided in a cylinder which is a knitted body of a circular knitting machine is provided with a needle 1, an intermediate jack 2 provided below the needle 1 so as to engage with the needle 1 and move integrally therewith, and an intermediate jack. A select jack 3 provided in contact with the intermediate jack 2 below 2 is inserted in the same groove.

  A cam is provided via a cam holder 4 so as to face the butt of the needle 1 and the intermediate jack 2. In this embodiment, the intermediate jack 2 has bats 22 and 21 at the upper and lower portions, and a stitch cam 41 for stitching as a cam facing the lower bat 21 and a jack lasing cam 42 for raising the jack are knitting machines. Are provided alternately in the rotation direction. The lower bat 21 is pulled down by the guide of the stitch cam 41, and the intermediate jack 2 and the needle 1 engaged with the lower jack 21 are also pulled down and stitched. The cam facing the needle 1 and the upper bat 22 is not provided with a stitch portion, and the portion is configured to run sideways at the welt position. Further, the cam race of the jack lasing cam 42 has a knit track, and a groove is provided at the welt position from the portion of the jack lasing cam 42 where the lower butt 21 is first raised to the end of the jack lasing cam 42. In the first part, if the bat is removed from the cam, the track of the welt can be taken.

  The contact portion between the intermediate jack 2 and the select jack 3 is set such that the intermediate jack 2 is set on the inside with respect to the rotational direction of the knitting machine, and the select jack 3 is set on the outside, and when the select jack 3 is pushed inward, the intermediate jack 2 Is also pushed into the inside by being pushed by the select jack 3.

  The select jack 3 is provided with an opposing electromagnetic actuator 51 and cam via an actuator holder 5. The select jack 3 has a pushing bat 31 below the contact position with the intermediate jack 2 at the top and slightly above the entire select jack 3, and has a middle bat 32 below, and further below that. Therefore, the entire select jack 3 has a swing piece 33 slightly below. A push cam 52 having protrusions 521 and 522 is provided opposite to the select jack 3 at a position above the push bat 31 and not in contact with the push bat 31. Normally, the push bat 31 does not contact anything. When the select jack 3 is raised, the push-in butt 31 comes into contact with the projecting portions 521 and 522. An electromagnetic actuator 51 is provided opposite to the swing piece 33.

  2 is a cross-sectional view of the knitting device at position 1 (a) in FIG. 1, (b) a cross-sectional view of the knitting device at position 2 in FIG. 1, (c) a cross-sectional view of the knitting device at position 1 ′ in FIG. d) It is sectional drawing of the knitting apparatus in 2 'position of FIG. This embodiment is a two-position needle selection of knit welt. In the needle selection process, in the case of welt, an electromagnetic actuator is acted upon receiving a signal of needle selection data, and the lower portion 331 of the swing piece 33 is attracted. Then, as shown in (c), the lower end of the swing piece 33 rides on the lasing cam 53, the swing piece 33 rises, and the select jack 3 also rises, and the push-in bat 31 is pushed in by the protruding portion 521. Then, the select jack 3 is also pushed in, and the intermediate jack 2 is also pushed accordingly, and the lower butt 21 of the intermediate jack 2 is detached from the cam and becomes a welt. In the case of knit, the upper 332 of the swing piece 33 is adsorbed as shown in (a), so that the swing piece does not get on the lasing cam 53 and the select jack 3 does not rise. By passing, the intermediate jack 2 is lifted by the lower butt 21 as it is guided by the jack lasing cam 42 and becomes knit.

  In the present embodiment, the protruding portion 522 is provided at the stitch position of the push cam 52. As a result, as shown in (d), after the select jack 3 of the needle 1 selected by the welt is moved up to the stitch position, the pushing bat 31 is uniformly pushed by the protruding portion 522, and the lower portion of the intermediate jack 2 is moved. The bat 21 can be removed from the stitch cam 41 to avoid the guide to the stitch, and the needle can run sideways in the welt position. As a result, the needle selected by the welt needle avoids stitches. On the other hand, as shown in (b), the selection jack 3 of the knit needle selection needle is not raised, so that the pushing bat 31 passes under the protruding portion 522 and the lower bat 21 of the intermediate jack 2 is not detached from the stitch cam 41. Instead, stitch and move according to the cam guide.

  In this embodiment, the knit welt 2-position needle selection is employed. In this embodiment, only the protruding portion 522 is provided at the stitch position. However, a needle selector is provided in front of the protruding portion 522, and before that, all the select jacks 3 are temporarily moved by the middle cam 54 facing the middle bat 32. The needle that was first selected by the welt needle by the needle selector is again selected, and the select jack 3 is raised again. Thereafter, the pushing bat 31 is pushed in the protruding portion 522 at the stitch position, and the needle of the welt needle is selected. There is also a configuration that keeps the welt position without stitching. With this configuration, a knit / tuck / welt three-position needle selection is possible by further providing an actuator in the knit / tack needle selection portion and performing knit / tack needle selection.

  In the present embodiment, the select jack is raised in the case of welt needle selection, and in the case of knit needle selection, the select jack is not raised but is run sideways, but this may be reversed. The needle or jack butt selected at the stitch position is positioned at the height at which the protrusion is provided, and the needle or jack bat selected at the stitch position is at the height at which the protrusion is provided. As long as they are positioned at different heights, the needle or jack selected by the welt moves to the stitch position, and then the pushing bat is uniformly pushed by the protrusion to remove the lower bat from the cam. The welt needle can avoid stitching.

  Embodiment 2 of the present invention will be described below with reference to the drawings. FIG. 3 is a front view of the cam holder of the knitting device according to the second embodiment of the present invention and a side view of the corresponding needle and jack. In this embodiment, a patterning jack 6 is used instead of the select jack 3 of the first embodiment.

  The patterning jack 6 is provided with a patterning bat 61 having several to several tens of bats above and below, and a multi-stage piezoelectric element actuator 7 having pegs 71 corresponding to the respective bat positions of the patterning bat 61 is opposed to the patterning jack 6. Is provided.

  4 is (a) a sectional view of the knitting device at position 1 in FIG. 3, (b) a sectional view of the knitting device at position 2 in FIG. 3, (c) a sectional view of the knitting device at position 3 in FIG. FIG. 4 is a cross-sectional view of the knitting device at the 1 ′ position in FIG. 3, and (e) a cross-sectional view of the knitting device at the 3 ′ position in FIG. In the needle selection process, the peg 71 of the multistage piezoelectric element actuator 7 is acted upon receiving a signal of needle selection data, and when the peg 71 is valid as shown in FIG. Then, the patterning butt 61 is pushed in, and thereby the patterning jack 6 is pushed in. The intermediate jack 2 is also pushed in along with this, and the lower butt 21 is removed from the cam. On the other hand, when the peg 71 is invalid as shown in (a), the peg 71 faces downward and passes under the patterning bat 61 so that the lower butt 21 does not come off the cam.

  In the present embodiment, the multistage piezoelectric element actuator 7 has a second needle selection position for selecting needles for knit or tuck, and a welt selection in addition to the first needle selection position for selecting needles for knit and tack or welt. It is provided at a third needle selection position, which is a stitch position where needle selection is performed so as not to stitch the needle of the needle.

  At the first needle selection position, the peg 71 is enabled as shown in (d) in the case of welt needle selection, and is disabled as in (a) in the case of knit / tack needle selection. At the second needle selection position, as a result of the needle selection at the first needle selection position, the needle 1 that has been raised to the tack position by the cam guide is removed when the lower butt 21 is removed from the cam at the tack position, and that position is maintained and the vehicle runs sideways and tacks. Therefore, in the case of tuck needle selection, the peg 72 is enabled as shown in (b), and in the case of knit needle selection, it is disabled. At the third needle selection position, a multistage piezoelectric element actuator 70 is provided in place of the protrusion 522 at the stitch position of the first embodiment, and the peg 701 is made effective only for the needle selected by the welt needle and the patterning bat 61 is pushed in. The lower bat 21 is removed from the cam, and the needle selected by the welt can avoid stitching. The needle for knit / tack selection is lowered by the guide of the stitch cam 41 and stitched.

  This allows the knit, tuck, and welt to be knitted in three positions, allowing the welt position to be kept laterally without stitching only the welt needle, and the knit / tack needle to be stitched. It becomes.

  In this embodiment, a multistage piezoelectric element actuator is used, but a multistage peg holder may be used instead. Thereby, the pattern of the semi-jacquard which does not change the pattern while the knitting machine is operating can be knitted.

  As described above, several preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily consider various changes and modifications within the obvious scope by looking at the present specification. Let's go. Accordingly, such changes and modifications are to be construed as within the scope of the invention as defined by the appended claims.

1: Needle 2: Intermediate jack 21: Lower butt 22: Upper bat 3: Select jack 31: Push-in butt 32: Middle bat 33: Swing piece 331: Swing piece lower part 332: Swing piece upper part 4: Cam holder 41: Stitch Cam 42: Jack lasing cam 5: Actuator holder 51: Electromagnetic actuator 52: Push cam 521: Protruding portion 522: Protruding portion (before stitch position)
53: Lasing cam 54: Middle cam 6: Patterning jack 61: Patterning butt 7: Multistage piezoelectric element actuator 71: Peg (first needle selection position)
72: Peg (second needle selection position)
70: Multi-stage piezoelectric element actuator (third needle selection position)
701: Peg (third needle selection position)

Claims (16)

A knitting method by selecting needles inserted into the needle grooves in a knitting body having a needle groove of a circular knitting machine, wherein only the knit needles and the tuck needles are stitched, and the welt needles are selected. Is a knitting method characterized by invalidating a stitch by an invalidation method. The knitting method according to claim 1, wherein the invalidation method includes a mechanical invalidation method using a fixing member. The knitting method according to claim 1 or 2, wherein the invalidation method includes an electrical invalidation method using an electrical needle selection device. A knitting method in a needle selector for selecting a needle by acting on any of a needle and a jack inserted so as to be engageable with the same needle groove in a knitted body having a needle groove of a circular knitting machine,
A knitting method comprising disabling a guide of a cam by removing a needle of a welt needle or a butt of a jack from a cam that performs stitching from before the stitch position to after the stitch position.   5. A knitting method according to claim 4, wherein the butt of the welt needle or the butt of the jack is removed after the welt needle selection, once the bat is returned to the cam by the time of stitching, and again after the stitch position.   6. The knitting method according to claim 4, wherein the welt needle or jack butt is removed from the cam for stitching immediately before the stitch position and at the height of the welt.   The knitting method according to any one of claims 4 to 6, wherein the bat is removed from the cam by pushing a needle or jack of the welt needle in a direction opposite to the cam. A knitted body having a needle groove, a needle housed in the needle groove, a jack housed in the same groove as the needle, and a needle acting on the needle or the jack to select the needle A knitting mechanism in a circular knitting machine including a needle selector,
A knitting mechanism comprising a disabling means for removing the needle of the welt needle or the butt of the jack from the cam for performing stitching from before the stitch position to after the stitch position.   9. The knitting mechanism according to claim 8, wherein the disabling means acts when the butt of the needle is immediately before the stitch position and at the height of the welt.   The knitting mechanism according to claim 8 or 9, wherein the disabling means pushes the needle or the jack directly or indirectly.   The jack includes a first jack that can be engaged with a needle, and a second jack that can contact the first jack and is provided to face the invalidating means. The second jack is the invalid 11. The device according to claim 8, wherein the first jack is pushed in indirectly by the converting means, whereby the butt of the first jack is removed from the cam for stitching. The knitting mechanism according to any one of the above.   As the disabling means, a protrusion is provided, the needle or jack butt selected by the welt needle is positioned at the height at which the protrusion is provided, and the needle or jack butt selected by the knit needle is provided by the protrusion. The welted needle or jack is moved to the stitching position, and then the bat is uniformly pushed by the protrusion to remove the bat from the cam. The knitting mechanism according to any one of claims 8 to 11, characterized in that it is characterized in that:   Providing a projecting part as the invalidating means, providing an electromagnetic needle selection device before the stitch position, selecting the needle of the welt needle again before the stitch position, The butt of the other needle or jack is located at a height different from the height provided with the protrusion, so that the needle or jack selected by the welt is stitched. The knitting mechanism according to any one of claims 8 to 11, wherein after the bat is moved to a position, the bat is uniformly pushed by the protruding portion to remove the bat from the cam.   A multi-stage piezoelectric element actuator is provided as the invalidating means, and the needle or jack of the welt needle is selected again before the stitching position, and the peg of the multi-stage piezoelectric element actuator causes the butt of the needle or jack of the welt needle to be selected. The knitting mechanism according to any one of claims 8 to 11, wherein the bat is removed from the cam by being pushed in.   A multi-stage peg holder is provided as the invalidating means, and the needle or jack of the welt needle is selected again before the stitch position, and the butt of the welt needle or jack is pushed by the peg of the multi-stage peg holder. The knitting mechanism according to any one of claims 8 to 11, wherein the bat is removed from the cam.   A circular knitting machine comprising the knitting mechanism according to any one of claims 8 to 16.

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