JPH0359151A - Method for pressing knit fabric in knitting knit fabric and apparatus therefor - Google Patents

Abstract

PURPOSE:To prevent stitch covering from occurring by keeping one needle bed in a state deviated from the other needle bed and passing a resting needle above a sinker loop of stitches in a front course in raising knitting needles. CONSTITUTION:A front needle bed 13 is kept in a state deviated from a back needle bed 14 to either left or right and mutual needles 15 and 16 provided in rows on the front and back needle beds are prevented from slide contacting. A resting needle 16 is passed above sinker loops of stitches 19 in a front course engaged with a knitting needle 15 relatively to a knit fabric knitted with the knitting needle on either of sides. A floating passage of stitches 19 in the front course is blocked to surely clear the stitches of the front course from latches.

Description

[Detailed description of the invention] [Industrial application field]

The present invention is a silk presser for knitting fabrics knitted by a bed flat knitting machine having a pair of front and rear needle beds, especially for silk fabrics in flat knitted fabrics knitted by knitting needles arranged in rows on either the front or front needle beds. This invention relates to a pressing method and a device for carrying out the method.

[Conventional technology]

In a V-bed flat knitting machine having a pair of front and rear needle beds, in addition to a roller-type knitted fabric pull-down device, in order to lower the knitted fabric from the needle bed opening at the top of the needle bed to a lower value, Alternatively, knitted fabric pressing devices such as those described in JP-A-57-149534 or JP-A-57-183451 are generally used. A cam group installed on a cam carriage that reciprocates on the needle bed is attached to this silk fabric presser device and directly presses the knitted fabric downward with a horizontal wire or something called a fabric presser bar. When the knitting needles arranged in a row on the needle bed are pushed up by the raising cam of the knitting needle, the knitting needles themselves move upward and the stitches of the previous course, which are locked to the knitting needles, rise so that they do not float up. It is designed to act on However, in the case of rubber knitted fabrics that are knitted using knitting needles arranged in a row on a pair of front and rear needle beds, the wire or knitting fabric presser bar of the above-mentioned silk fabric presser is not hung over the front or rear needle beds. However, in the case of a plain knitted structure knitted using knitting needles on a needle bed arranged in rows on either the front or the front side, the knitted fabric The knitting needle cannot be pressed down sufficiently, and sometimes the stitches of the previous course held on the knitting needle also rise with the upward movement of the knitting needle, and are pulled out upward through the gap between the wire or fabric presser bar and the opening of the stitch. Therefore, when forming a stitch, the newly fed yarn is drawn in without being cleared from the bellow part of the knitting needle, resulting in a so-called tuck condition, which causes product defects. This problem is likely to occur when knitting is done using threads with low elasticity such as linen thread or cotton thread, or when knitting is done with a tight stitch density, and this problem is especially likely due to the tendency of the knitted fabric edges to curl. This often occurs at the left and right edges of plain knitted fabrics, where the conditions for silk fabric pull-down tension are poor due to this.

[Problem to be solved by the invention]

The method and device of the present invention have been made in view of the above points, and are particularly suitable for knitting fabrics that are knitted using knitting needles on either the front or back needle beds, such as plain knit structures. Even when knitting is done using yarn with low elasticity, or when knitting with tight stitch density, the stitches of the previous course do not come up as the knitting needle rises, and the stitches of the previous course are reliably knitted evenly. It is an object of the present invention to disclose a method for pressing a knitted fabric that can clear the knitted fabric and prevent the occurrence of eye fogging, and a cam carriage device having a novel needle trajectory that can carry out the pressing of the knitted fabric.

[Means to solve the problem]

In order to solve this problem, according to the method of the present invention, even if the needles arranged in a row on the front and rear needle beds of a V-bed flat knitting machine having a pair of front and rear needle beds rise, the opposite needle beds are One needle bed is shifted to the left or right so as not to collide with the needles, and the needles (hereinafter referred to as knitting needles) of either the front or back needle bed used for knitting plain knitted fabrics are installed in the carriage. When raised by the raised raising cam, or prior to that, the needle on the opposite needle bed that is not used for Ii (hereinafter referred to as the rest needle) is moved up by the previous course which is locked to the knitting needle on the opposite needle bed. The knitting needle passes above the sinker loop of the stitch in the previous course, blocking the floating path of the stitch in the previous course, stopping its floating, and allowing the stitch in the previous course to be cleared from the flat due to the upward movement of the knitting needle itself further given by the raising cam. . In order to carry out the above method, a needle track L2 for holding stitches is installed in a knitting cam lock provided on a cam carriage that reciprocates along the needle bed of the V-bed flat knitting machine.
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【Example】

The method and apparatus of the present invention will be explained using preferred embodiments and in conjunction with the drawings. Figure 1 shows the knitting cam lock and the needles used in it when the cam carriage reciprocates to the left along the needle bed of a flat knitting machine that has a pair of needle beds arranged in an inverted V shape in the front and back. The known raising cams, Tenzan, and stitch cams for forming 0 stitches are numbered 1 and 2, respectively.
．． 3, and a needle trajectory L1 for stitch formation is formed between Tenzan 2 and the raising cam 1.9 In order to perform not only stitch formation but also the method of the present invention, there is a needle path L1 in the raising cam 1. There is a groove to form another needle track L2, and new switching cams 4.5, 6, 7. in addition to the above cams are provided.
8.9 is also provided. These switching cams 4,
5, 6, 7, 8.9 each appear and disappear by the action of an unillustrated lens installed in the cam carriage,
The needle IO is adapted to be able to change its position, and the needle trajectory L1 or L2 within the knitting cam lock can be arbitrarily selected. By passing either trajectory L1 or L2 selected by , the needle moves up and down on the needle bed. In this example, the knitting needles on the front needle bed are used to knit a plain fabric, and the resting needles on the rear needle bed are used to press the stitches. We will show and explain the current state of the cam carriage. The lower side of Fig. 2 shows the state of the switching cam of the cam carriage on the front needle bed where stitch formation is performed, and the switching cam 4.6 shown with diagonal lines acts to block the path of knitting needles that are unnecessary for stitch formation. , the needle is guided to a needle trajectory LL in which the needle passes through the apex of the raising cam 1. The upper side of FIG. 2 shows the movement of the resting needles for stitch pressing by the cam carriage on the rear needle bed, which is not used for knitting. The path of other resting needles is blocked. Of course, when the cam carriage moves to the right,
The switching cams 5, 7 act on the front needle bed, and the switching cams 5, 9.6 act on the rear needle bed. FIGS. 3 to 9 are cross-sectional views of the state of the needles in the front and rear needle beds at each position A to G shown in FIG.
13 is the front needle bed, 14 is the back needle bed, 15 is the knitting needle, 16 is the rest needle, 17 is the sinker, 18 is the piano wire, and 19 is the front course stitch. Figure 3 shows the state of the needle at position A, where the front needle bed 13
The knitting needles 15 and the idle needles 16 of the rear needle bed 14 are still in the inactive position, where they are not affected by the raising cam provided on the cam carriage. FIG. 4 shows the state of the needles at position B, where the knitting needles 15 and the resting needles 16 are in the first ascending path under the action of the raising cam provided on the cam carriage. Figure 5 shows the state of the hands at position C, which is slightly higher than position B, and at this position the front and rear hands 15.
16 begin to intersect with each other, but since the idle needle 16 passes above the sinker loop 120 of the stitch 19 of the previous course that is locked to the knitting needle 15, the floating path of the stitch 19 of the previous course is blocked. Put it away. Figure 6 shows the state of the needles at position D, with the front and rear needles 15.16
is at the flat intermediate position of the raising cam (tuck position), and this position is the highest position of the rest needle 16 of the rear needle bed 14. Further, in this state, since the sinker loop 120 is prevented from rising by the pause needle 16, the stitches 19 of the previous course also maintain their positions. Figure 7 shows the state of the needle at position C, where the rear needle bed 14
The resting needle 16 is at the same raised position as the D position, and the front needle bed 1
Only the knitting needle 15 of No. 3 reaches the top position of the second ascending path of the raising cam, and the resting needle 16 accordingly
Stitch 19 of the previous course, which had been stopped from floating, is on knitting needle 15.
His own upward movement will ensure that he will be cleared from Vera 21. Figure 8 shows the condition of the needles at position F, with the front and rear needles 15.16
begins to descend. FIG. 9 shows the state of the needles at position C. In this position, the knitting yarn 22 of the current course is supplied from the yarn feeder 23 to the knitting needles 15 of the front needle bed 13, so
The rest needles 16 of No. 4 are lowered to a non-working position where they do not grip the knitting yarn 22. After this, the knitting process proceeds in the same manner as in normal stitch formation, and the stitches 19 of the previous course are knocked over from the knitting needles 15 to form stitches. Note that the apparatus of the present invention is not limited to silk fabrics as described in the above-mentioned embodiments. For example, it is not necessary to raise the idle needle 16 together with the knitting needle 15, and the idle needle 16 goes in advance to move the sinker loop of the stitch 19 of the previous course. 120 may be raised to a position where it can be pressed, and then the knitting needles 15 may take the stitch forming trajectory, or it is not necessary to raise the resting needles 16 to a tuck position such as the D position as in the above embodiment. Without,
A lower position may be used as long as the sinker loop 120 of the stitch 19 of the previous course can be held down, and the resting needle 16 is at least held at a position where the stitch 19 of the previous course, which is locked to the knitting needle 15, is held down by a device consisting of a bellow 21. However, in the above embodiment, the cam carriage device which can carry out the present invention with the least number of changes and simplification of the cam mechanism is sufficient. This is a preferred example, and it goes without saying that the present invention can be implemented without departing from the spirit of the present invention.

【Effect of the invention】

As is clear from the above examples, for silk fabrics that are knitted with knitting needles on either side of the front and rear needle beds, such as a plain knit structure, the dormant needles of the needle bed on the side that is not used for knitting are placed opposite to each other. Since the stitches of the previous course that are locked to the knitting needles of the needle bed are passed above the sinker loop, the floating path of the stitches of the previous course is blocked, and the left and right edges of the plain knitted fabric, which has poor fabric pull-down conditions, are Even in the section, it is possible to reliably clear the stitches of the previous course from the tongue. This is true not only when knitting is done using threads with low elasticity such as linen thread or cotton thread, or when knitting with a tight stitch density, but also when knitting is done using yarns with low elasticity, such as linen thread or cotton thread, or when knitting is performed with a tight stitch density. The effect is sufficiently exhibited even when eye enlargement is performed, and the occurrence of eye fogging can be prevented. Furthermore, by using a needle selection device, an appropriate number of idle needles at the left and right edges of the plain knitted fabric with poor fabric pull-down conditions are selected, and the silk fabric pressing method of the present invention is applied only to those areas. By doing so, it is also possible to adopt a knitting method that does not put too much strain on silk fabrics.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a preferred embodiment of the apparatus of the present invention, and FIG. 2 is a diagram showing a cam carriage on the front needle bed for forming stitches and a cam carriage on the rear needle bed for pressing stitches in this embodiment. FIGS. 3 to 9 are cross-sectional views of the needle bed at positions A to G shown in FIG. 2. 1: Raging cam 2: Laughter 3: Stitch cam 4.5, 6, 7, 8, 9: Switching cam 10: Needle 11: 12: 13: 14: 15: 16: 17: 18: 19: 20: 21 = 22: 23: Jack butt front needle bed rear needle bed knitting needle pause needle sinker piano wire front course stitch sinker loop bella silk thread feeder

Claims (1)

[Scope of Claims] 1. In a V-bed flat knitting machine having a pair of front and rear needle beds, even if the needles arranged in a row on the front and rear needle beds rise, they do not collide with the needles on the opposing needle bed. When one needle bed is shifted to the left or right and the knitting needles on either the front or back needle bed used for knitting a plain fabric are raised by a raising cam installed on a cam carriage. , or prior to that, pass the idle needle of the opposite needle bed that is not used for knitting over the sinker loop of the previous course stitch that is locked to the knitting needle of the opposite needle bed, and Block the levitation path and stop it from surfacing.
A method for pressing a knitted fabric characterized in that the stitches of the previous course are cleared from the tongue by the upward movement of the knitting needles themselves given by a raising cam. 2. In a V-bed flat knitting machine having a pair of front and rear needle beds, a needle track L2 for holding stitches is provided in a knitting cam lock provided on a cam carriage that reciprocates along the needle bed. A cam carriage device characterized by: