JPH01306659A - Needle selection method for circular knitting machine and apparatus therefor - Google Patents

Abstract

PURPOSE:To enable the selection of a mode from three modes comprising knit, back and welt, without using a picker, by providing a selector with long and short butts and selecting the inclination of the selector from three states consisting of large inclination, small inclination and non-inclined state. CONSTITUTION:A selector 16 is provided with a long butt 17 and a short butt 18 and is inserted into a needle grove in inclinable manner. When a finger 20 of an actuator 20 engages with neither of the butts 17, 18, the selector 16 is kept in non-inclined state and the butt 27 at the lower end of the selector 16 engages with neither of a clearing cam 10 and a tack cam 11 to attain a welting mode. When either finger 20 is brought into contact with the short butt 18, the selector 16 is slightly inclined and the butt 27 is engaged with the tack cam 11 to attain a tack-knitting mode. When either finger 20 is contacted with the long butt 17, the selector 16 is largely inclined and the butt 27 is engaged with the clearing cam 10 to attain a knitting mode.

Description

Detailed Description of the Invention Field of Industrial Application The present invention relates to a needle selection method and device capable of simultaneously selecting needles in any of three positions: knit, tuck, and welt in a circular knitting machine. .

K PRIOR ART When knitting a knitted fabric, it is necessary to position the needle in one of three positions: knit, tuck, and welt for pattern creation and other purposes. For example, when changing colored threads midway through the course to create a different colored pattern, the needles located at the border will receive the next colored thread as if they were tucked with one colored thread. The knitting position is taken, but in such a case, the needle that has proceeded to lock and is to be tacked is raised above the center cam by the picker and lowered before the next center cam (Special Publication No. 62-11).
No. 103) method, the butt of the leading needle is sunk into the needle groove, and the butt is taken out of the groove at the next opening. However, in such cases, Iff increased, and the latter in particular became a complex device.

In addition, as described above, the needle that has passed over the center cam is pulled by tension and is lowered by the stitch cam of the next lock while receiving the tensioned thread far below the latch to perform knitting or While the bat remains in the groove, the tensioned thread is caught by the hook, the bat is moved out of the groove with the next lock, and the stitch cam is used to make a downward movement. As a result, the yarns that are tucked together become tense, and the stitches at the border of the pattern created by the different yarns that have been changed become stiff.Although diagonal stitches like argyle stitches are not noticeable, long stitches that are not stitched vertically are stiff. It felt tight and the dimensions were tighter than the square stitch.

K Problems to be Solved by the Invention] In view of the above points, the present invention adopts a needle that takes a tuck position at a point where the needle position is selected without using the action of a picker or the like, and adopts a different knit or welt position. Similarly, the object is to obtain a needle selection method and device that can also adopt a tuck position at a point if necessary.

Means for Solving Problem K5] In the invention as set forth in claim 1, a selector having a long butt for actuator and a similar butt on its side edge is swingably inserted into the needle groove. Of the two types of butts, long and short, provided on the side edge of the selector that extends outside the needle groove, the long butt is pressed by the finger of the actuator to swing the selector end to a large angle. The clearing cam provided at the position corresponding to the angular swing position and the selector lifting butt at the end of the selector are engaged to raise the selector to the clearing position, and the selector's! A selector end is swung by a small angle by a mouth for pressing a type 2 bat with an actuator finger, and a tack cam provided at a position corresponding to the small-angle swing position of the selector end, and a selector at the selector end. Engage the rising butt to raise the selector to the tuck position.

#Ki NagaiWhen neither of the butts is pressed by the actuator finger, the selector (or end) does not swing, and the selector rising butt at the selector end does not engage with either the clearing cam or the tack cam. Set the selector to non-rise and select the three positions of knit, tuck, and welt.

In the invention as set forth in claim 2, a fulcrum contacting the needle groove wall is provided in the middle of a side edge located inside the needle groove of a long plate-shaped selector inserted into the needle groove, and the selector includes: A selector lifting bat is provided at one end of the side edge located outside the needle groove, and a long bat and a similar bat are provided at the reflective end of the selector lifting bat at the side edge located outside the needle groove, An actuator for operating the long and short bats is provided facing the long and short bats, and apart from dirt, an actuator for operating the long and short bats is located outside the needle groove, facing the bat for raising the selector, and is used for raising the selector when the selector swings at a small angle. A tack cam is provided at the position where it engages with the bat, and a clearing cam is provided at the position where it engages with the butt for raising the selector when the selector swings at a large angle.

Example: An example in which the present invention is applied to a 40-knit sock knitting machine will be described below with reference to the drawings.

FIG. 1 is a developed view of a cam provided on the outer periphery of the cylinder, viewed from the inner surface of the cylinder, and shows a range of 180 rfL. Outer hooks 2 and 3 are provided below the outer periphery of the cylinder 1 (not shown in FIG. 1). On the cylinder side of the upper outer hook 2, there is a center cam 4. Stitch cam5. The receiver is provided with a cam 6. On the cylinder side of the lower outer hook 3, there are lowering cams 7, 8,
Press rthm9. Clearing cam 10. tuck cam 11
will be established. 1 down) Jmu 7. Pressing cam9. Clearing cam 10° The tack cam 11 has its center set at -, and as shown in FIG.
The tack cam 11 is positioned on the cylinder side. , is located between the lower outer hook 2.3, and an actuator 15 is provided on the outer periphery of the cylinder 1. The actuator is provided with fingers 20 that come into contact with butts 17 and 18 for two types of shellfish provided on a selector 16, which will be described later. The finger 20 appears and disappears depending on the selected needle, and the butt 17.1 of each long drive
8 and the selector 16 through the butt 17.18.
into the needle groove 19 of cylinder 1.

The cylinder 1 has a needle groove 19 provided in the radial direction on its outer periphery, and the selector 16 is slidably inserted into the cough needle groove 19. The selector 16 has a plate shape,
By curving the needle in a dogleg shape as a whole, an appropriate amount of frictional resistance is generated within the needle groove 19, so that it cannot slide freely.

The linear side edge 21 of the selector 16 located inside the needle groove is bent to use the cough diffraction point as a fulcrum 22 so that the top 23 and lower end 24 of the selector can protrude and retract in the opposite direction with respect to the needle groove 19. I have to. A plurality of long butts 17 and similar butts 18 are provided at positions closer to the top 23 than the fulcrum 22 on the side edge 25 located outside the needle groove of the selector 16, and a plurality of long butts 17 and similar butts 18 are provided at positions closer to the lower end than the fulcrum 22 for lowering the selector. A selector lifting butt 27 is provided near the butt 26 and the lower end 24, respectively.

Next, the organization method will be explained.

Now, the cylinder 1 is rotated in the direction of the arrow in Fig. 1 (the outer hooks 2, 3 and actuator 15 shown in Fig. 1 are fixed), but the cylinder 1 is not shown in Fig. 1). , it is assumed that needle selection is performed using the actuator 15 located in the center of the drawing.

Needle selection is done by sorting the needle 30 into three positions: knit, tuck, and welt.
To position the needle 30, the actuator 15 operates the selector 16 in the same needle groove 19 as the needle 30. All of the selectors 16 that reach the position of the actuator 15 have their lifting butts 27 pushed by the pressing cams 9 in front of them, and the lower ends 24 of the selectors 16 are pushed by the needle grooves 19.
The long butts 17 and 18 are pushed inward and are protruding from the needle groove, centering on the fulcrum 22 (Fig. 5A).
. And to raise the needle 30 to the knitting position,
By protruding the finger 20 corresponding to the long butt 17 of the selector 16, the selector 16, which has moved toward the actuator 15 in the direction of the arrow in FIG. It comes into contact with the finger 20 of the actuator, and the upper part from the fulcrum 22 is pushed into the needle groove 19, and conversely, the lower end part 24 is pushed into the needle groove 19.
Exit the needle groove 19. At this time, the selector 16 swings at a large angle because it is the long butt that comes into contact with the finger 20, and the lifting butt 27 is protruded the most and positioned at the engagement position with the clearing cam 10. let

As the cylinder 1 continues to rotate, the lifting butt 27
(Fig. 5C) as it ascends the slope of the clearing cam 10.
The selector 16 assumes the position of FIG. 1 16a, and the top 23 of the selector 10 presses against the end of the needle 30, raising the needle 30 to the knitting position (FIG. 1 30a). At this time, the latch 31 of the needle 30 has cleared the line 13 on the top surface of the sinker. The needle 30 receives yarn feeding from a yarn feeding member (not shown) in the yarn feeding board box 14.

In order to raise the needle 30 to the tuck position, the finger 20 corresponding to the similar butt 18 of the selector 16 is protruded, and the selector 16 is swung by a small angle by bringing the finger 20 and the similar butt 18 into contact as described above. do.

Due to this small angle swing of the selector 16, the lifting butt 27 swings to a position where it engages with the tack cam 11.
As the selector 16 moves due to the rotation of the cylinder 1, the selector 16 moves up the slope of the tack cam 11.
B), assuming the position of FIG. 1 16b, the top 23 of the selector 16 pushes against the end of the needle 30, raising the needle 30 to the tuck position (FIG. 1 30b). At this time, the latch 31 of the needle 30 does not clear the line 13 on the top surface of the sinker, so the thread is received by the hook.

To place the needle 30 in the welt position, the actuator 15 is not actuated and its finger 20 is not protruded at all. Therefore, the length of the selector, the hearth butt 17.
18 is not pressed at all, the selector 16 does not swing at all, the lifting butt 27 remains in the same position, and the clearing cam 10. The needle 30 does not engage with any of the tack cams 11 and does not rise (FIG. 5A); thus, the selector 16 does not rise and therefore the needle 30 engages with it.
will not rise and will remain in a welt position.

In the above, the selector 16, which has been raised to the knitting position by the clearing cam 10, is pulled down by the lowering cam 7.8, creating a trajectory as shown by the dashed line, and the needle 30, which has been similarly pushed up from the knitting position by the selector 16, is moved by the center cam. 15. stitch cam 5
It was lowered by one point 3!4! Draw a trajectory like fA.

Further, the selector 16, which has been raised to the tuck position by the tack cam 11, is pulled down by the lowering cam 8 and draws a trajectory as shown by a two-dot chain line. Similarly, the needle 30, which has been pushed up to the tuck position by the selector 16, is moved to the stitch cam after yarn feeding. It will be lifted at 5. In other words, the tucked thread is also drawn in a little as the needle descends, and the tacked thread is drawn in slightly as the needle descends, making the tucked part of the thread smaller than if the tucked needle did not come into contact with the stitch cam at all and therefore proceeded without descending. The tension will be less.

[Effect of the Invention] In the R light according to claim 1, the selector having the long butt and short butt for the actuator at the side edge is swingably inserted into the needle groove, and the needle of the cough selector is inserted into the needle groove. Of the two long and short bats installed on the side edge outside the premises, the long bat is pressed by the finger of the actuator to swing the selector end to a large angle, and the selector end is moved to a large angle swing position. A clearing cam provided at a position corresponding to the selector is engaged with the selector seven-fold butt at the end of the selector to raise the selector to the clearing position, and the short butt of the selector is suppressed by the finger of the actuator. Shake the end of the selector by a small angle.
The selector is raised to the tuck position by engaging the tack cam provided at the position corresponding to the small angle swing position of the selector end with the selector high butt at the end of the selector. If neither of the selector is pressed by the actuator finger, the selector oscillates at the end! Selector 9: The selector L raising bar ~ at the part H does not engage with either the clearing cam or the tuck cam and the selector is not raised, and the selector is selected from three positions: knit, tuck, and welt. In the invention described in 2, a fulcrum contacting the needle groove wall is provided in the middle of the side edge of the long plate-shaped selector inserted into the needle groove located inside the needle groove, and the selector
A selector raising butt is provided at one end of the side edge located outside the needle groove, and a long butt and a short butt are provided at opposite ends of the selector raising butt of the side edge located outside the needle groove, An actuator for operating a long and short bat is provided facing the long and short bat, and separately, an actuator for operating a long and short bat is provided, which is located outside the needle groove and faces the bat for raising the selector when the selector is oscillated at a small angle. A tack cam is installed at the position where it engages with the selector, and a clearing cam is installed at the position where it engages with the butt for raising the selector when the selector swings at a large angle, making it possible to knit without using a picker.

Remove the debris from either of the three positions: tuck or welt.
Positions on the course can be determined and selected at selection points.

[Brief explanation of the drawing]

Figure 1 is an exploded view of the cam installed on the outer periphery of the cylinder as seen from the inner surface of the cylinder, Figure 2 is a longitudinal cross-sectional view of the upper outer hook,
Fig. 3 is a longitudinal cross-sectional view of the lower outer hook, Fig. 4 is a plan view of the pressing cam, and Fig. 5 A, B, and C are cross-sectional views showing the positional relationship between the selector, clearing cam, and tack cam. A shows a state in which the selector does not vibrate, B shows a state in which the selector vibrates by a small angle, and C shows a state in which the selector vibrates by a large angle. 10... Clearing cam, 11... Tack cam. 15...actuator, 16...selector. 17...long bat, 18...class bat. 19... Needle groove, 20... Finger. 21, 25... Selector side edge, 24... Lower end. 27...Selector 1 Nobokawa bat. Figure 5

Claims (1)

[Claims] 1. A selector having a long butt and a short butt for the actuator on its side edge is swingably inserted into the needle groove, and is provided on the side edge of the selector that extends outside the needle groove. By pressing the long butt with the fingers of the actuator, the selector end is swung at a large angle, and a clear plate is provided at a position corresponding to the large angle swiveling position of the selector end. The ring cam and the selector lifting butt at the end of the selector are engaged to raise the selector to a clearing position, and the short butt of the selector is pressed by the finger of the actuator to swing the end of the selector by a small angle. , the selector is raised to the tuck position by engaging a tack cam provided at a position corresponding to the small angle swing position of the selector end with a selector lifting butt at the selector end, and lifting any of the long and short butts. When the selector is not pressed by the actuator finger, the end of the selector does not swing, and the selector rising butt at the end of the selector does not engage either the clearing cam or the tack cam, causing the selector to not rise, and the selector to knit. A method for selecting needles in a circular knitting machine, characterized by selecting three positions: , tuck, and welt. 2. The long plate-shaped selector inserted into the needle groove.
A fulcrum contacting the needle groove wall is provided in the middle of the side edge located on the inside of the needle groove, a butt for raising the selector is provided at one end of the side edge of the selector located on the outside of the needle groove, and a butt for raising the selector is provided on the outside of the needle groove. A long butt and a short butt are provided at the opposite end of the selector raising butt on the side edge where the selector is located, and an actuator for operating the long and short bat is provided facing the long and short butt. The tack cam is located at a position facing the selector-raising butt and engages with the selector-raising butt when the selector swings at a small angle, and also at a position that engages with the selector-raising butt when the selector swings at a large angle. A needle selection device equipped with clearing cams at matching positions.