JPS6252064B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for inserting a suspended jump yarn into a knitted fabric.

The present invention uses multiple types of yarn to change the type of yarn to be knitted at the end of the course or in the middle of the course to knit a flat knitted fabric having a striped pattern or other patterns.
In order to prevent the knitting yarn that has stopped knitting from lying on the knitting surface for a long time as a knitting suspended jumper yarn until it is knitted next time, when the knitting suspended jumper yarn is tacked onto the knitted fabric, it should be removed from the side of the knitted fabric. The object of the present invention is to fix the knitting suspended jumping thread to the knitted fabric by guiding the knitting stopped jumping thread to the needle to be tacked, without operating the needle separately from the knitting operation.

When knitting a flat knitted fabric on a flat knitting machine, a striped pattern fabric can be knitted by changing the type of knitting yarn, color, etc. for each course as appropriate, or by changing the yarn used midway through the course. The practice was to develop a pattern in this area.

However, in the case of such knitting, the knitting yarn that has been switched and is in a dormant state lies for a long time on one side of the knitted fabric until it is used for the next knitting, which not only spoils the appearance but also makes it unsatisfactory from the viewpoint of use. It wasn't something.

For example, when knitting gloves or the like in a bag-knitted manner using a flat knitting machine in which front and rear needle beds are arranged opposite each other in a chevron pattern, the yarn feeder that feeds the first knitting yarn to a predetermined course is connected to the needle bed. The second knitting yarn is fed to the needles by the yarn feeder that was waiting at the yarn feeder standby position on the side when knitting the fabric with the next second knitting yarn. The yarn feeder, which had been feeding the first knitting yarn, enters the yarn feeder standby position and stands by. Then, course knitting is performed appropriately using the second knitting yarn, but during this time, other knitting yarns including the first knitting yarn other than the second knitting yarn are knitted until the respective knitting yarns are fed next time. It lies on the ground for a long time and becomes a knitting suspended thread. For this reason, in the case of bag knitting of gloves, etc., after knitting, this knitting suspended jump yarn is cut at the center, and both ends of the yarn are drawn into the bag knitting and pasted onto the stitches.

In order to eliminate such work, the present applicant first invented a method for processing suspended jump yarns in knitting and a tack device for suspended jump yarns in knitting, and filed a patent application in 1983-1277.
No. (Japanese Unexamined Patent Publication No. 58-120844), Patent Application No. 57-3720
(Japanese Patent Application Laid-Open No. 58-120845), the method and device described above require that the needle be used in the normal knitting process to lock the knitting suspended jump yarn to the knitted fabric during knitting. In addition to the operation of moving the needle up and down with a lock, a double jack is installed on the needle, and a separate tab jack is used to move the needle up and down in order to lock the knitting suspended crossover yarn to the needle. In order to lock the knitting suspended jump yarn to the needle, the yarn feeder for the knitting suspended jump yarn had to be moved from the yarn feeder standby position to the needle position separately from the knitting yarn feeder.

In the present invention, as described above, the lock allows the vertical movement of the needle by means of a tab jack that is separate from the vertical movement of the needle, and the position of the needle that is to be tacked for the tacking of the yarn feeder during the pause in knitting. No operation such as moving up to the knitting point is performed at all, but when the needle is moved up and down by the lock for knitting the knitting, the knitting suspended jumper is guided to the upper part of the predetermined needle by the knitting suspended jumper yarn guiding member, The knitting stop jump thread is secured to the needle and tacked.

Next, embodiments of the device of the present invention will be described.

Reference numeral 1 denotes a known knitting member in which a front needle bed 2 and a rear needle bed 3 face each other in a chevron shape, a front needle 4 and a rear needle 5 are inserted into each, and a carriage 6 reciprocates on the upper surface thereof.
A knitting stop jump thread insertion device 10 is provided on the side surface of the top of the front and rear needle beds 2 and 3 provided opposite to the above-mentioned chevron shape, and on an extension of the center line C of the front and rear needle beds 2 and 3 facing each other. . The knitting pause jumper thread insertion device 10 is configured as follows. 1
Reference numeral 1 denotes a sliding plate, which is held on both sides by guide members 12, 13, and 14, and is supported so as to be able to reciprocate on a center line C by means to be described later. A U-shaped concave notch 15 is provided at the end of the sliding plate 11 near the front and rear needle beds 2 and 3, and a jump thread guide member 17 for guiding the knitting suspended jump thread is provided inside the cutout part 15 using a support pin 16. Supports swinging freely. The crossover thread guide member 17 has a locking portion 18 formed of a V-shaped notch at its distal end, and a tapered surface 19 at its base end. 20 is a cross thread guiding member holding plate;
It is provided integrally with the sliding plate 11 at the end of the sliding plate 11 so as to support the crossover thread guiding member 17 from below. A small hole 21 is provided in each of the crossing thread guiding member 17 and the crossing thread guiding member pressing plate 20 so as to face each other, and a spring 22 is built in the small hole 21.
Due to the elastic force, the crossover thread guide member 17 is pivoted clockwise in FIG. 2 about the support pin 16, and the locking portion 18 is urged upward. On the other hand, a pin 23 is provided to protrude from the side surface of the crossover thread guide member 17, and the tip of the pin 23 is brought into contact with the lower surface of the crossover thread guide member guide cam 24. The crossover thread guide member guide cam 24 is installed parallel to the center line C, and its tip, that is, the portion near the needle beds 2 and 3, has a cam surface 25 inclined upward. Therefore, as the sliding plate 11 moves to the left in FIG. 1 and FIG.
5, the elastic force of the spring 22 causes the jumper thread guide member 17 to pivot clockwise around the pin 16 and lift the locking portion 18 upward.

Locking protrusions 30 and 31 are provided on the guide members 13 and 14 side of the sliding plate 11, and the locking protrusions 3
A locking pin 32 configured to reciprocate together with the carriage 6 is positioned between 0 and 31. The locking pin 32 is held by a locking pin holding member 34 supported by a rod 33 integrated with the carriage 6 under the elastic force of a spring 35 so as to project toward the locking protrusion 30. A positioning pin 39 integrated with the stop pin 32 is attached to the holding member 34.
The maximum protruding position of the locking pin 32 is defined by slidably engaging with the elongated hole 36 of the locking pin 32 . Also,
The locking pin 32 has a thickness sufficient to engage the locking protrusions 30 and 31 as well as trapezoidal cam surfaces 37 and 38 provided on the side edges of the guide members 13 and 14. There is.

By the support member 40 integrated with the guide member 12,
It is located between the cam surfaces 37 and 38 and supports the center cam 41. The center cam 41 is suspended from a plunger 43 of a solenoid 42 provided on the support member 40 and is supported so as to be able to move up and down. The cam surfaces 44 and 45 of 41 are the guide members 13,
The cam surfaces 37 and 38 of 14 are arranged in a straight line. 55, 56, 57, and 58 are yarn feeders.

Next, the organization method will be explained.

For example, threads 5 of the first, second, third, and fourth colors
1, 52, 53, and 54, when knitting a bag like a glove by changing the color yarn in several courses, the 7th
As shown in the figure, a yarn feeder 5 that feeds the first yarn 51
5 feeds the yarn 51 to the front and rear knitted fabrics 61 and 62 as the carriage 6 moves, but the other yarns 52 and 5
The yarn feeders 56, 57, and 58 of No. 3 and 54 are separated from the front and rear knitted fabrics 61 and 62, and are located at the side yarn feeder standby position 50.
is on standby. From the yarn feeders 56, 57, 58 in the standby state at this time, the front and back knitted fabrics 61, 6
The yarns 52, 53, and 54 extend as a knitting stop jump yarn 60 at the boundary between the two. Then, as the knitting of the knitted fabric progresses, the knitting stop jump yarn 60 is attached to the end for little finger knitting of the front needle 4 and the rear needle 5 inserted into the front needle bed 2 and the rear needle bed 3. It is knitted in the wale direction between needle loops 4 _{1 N} and 5 ₁ N knitted by needles 4 ₁ and 5 ₁ . In FIG. 3, two of the three knitting suspended jump yarns are omitted.

Here, as shown in FIG. 4, the thread 51 was knitted up to the course, but the knitting was switched to the thread 52 in the course, and the crossover thread 60 was applied once every two courses to the little finger side end of the rear needle bed 3. Second needle from 5 ₂
An example of how to tackle this will be explained below. In the structure of the knitted fabric shown in FIG. 4, the starting position for each course is the chain line S between the wales knitted by the front and rear needles 4 and 5.
The same applies to FIGS. 5 and 6.

When knitting a course, the yarn feeder 55 is moved as the carriage moves in the same way as in normal knitting, and the yarn 51 is fed in an annular trajectory from the front needle 4 to the rear needle 5 in that order to form a bag-like knitted fabric. Organize.

During the above knitting, the crossover thread insertion device 10 does not operate at all. That is, as the carriage 6 moves, the locking pin 32 also reciprocates via the locking pin holding member 34, but the center cam 41 maintains the lowered state because the solenoid shaft 43 of the solenoid 42 is pushed out during normal knitting. The cam surfaces 44 and 45 of the center cam 41 are located within the locus of the reciprocating motion of the locking pin 32. At this time, since the sliding plate 11 of the crossover thread insertion device 10 is positioned away from the needle beds 2 and 3 as shown by the solid line in FIG. 1, the locking protrusion 30 of the sliding plate 11 is centered It overlaps the cam 41 vertically and is hidden under the center cam 41. Therefore, even if the locking pin 32 moves back and forth due to the reciprocating movement of the carriage 6, the locking pin 32 is pushed by the cam surfaces 45, 44 of the center cam 41 and sinks into the holding member 34, and is locked. The pin 32 does not engage with the locking protrusion 30 of the sliding plate 11, and the sliding plate 11 does not move at all.

Next, when knitting is started by the front needles 4 of the course, the yarn feeder is switched. Yarn feeder 55
stops at the yarn feeder standby position 50, and then the yarn feeder 56 starts to move as the carriage moves and feeds the yarn 52 to the front needle 4. This results in
The yarn 51 that had been knitting until then is transferred to a crossover yarn 60 between the yarn feeder 55 at the standby position 50 and the knitted fabric.
It has become like a bridge. At this time, the needles 4 of the front needle bed 2 are operated by the left movement of the carriage 6, the front side fabric 61 is knitted by the front needles 4, and the carriage 6
Due to the reversal transition, the rear knitted fabric 61 is knitted by the rear needles 5 of the rear needle bed 3,
A bag-shaped knitted fabric is constructed.

Next, the carriage changes from the right row to the left row in FIG. 7, and a course is knitted. In the course, the crossover thread 60 is tacked from the little finger side end of the rear needle 5 to the second needle ₅₂ . The method is as follows. That is, the crossover thread insertion device 10 is activated when the carriage 6 moves to the left. The activation timing of the crossover thread insertion device 10 is determined in advance by using a memory member and activating the solenoid 42 in conjunction with the operation of the carriage 6. In the example shown in FIG. 4, when organizing the course, the solenoid 42 is memorized to operate, and the operation of the solenoid 42 moves the center cam 41 from within the movement trajectory of the locking pin 32. raise. Then, when the carriage 6 is at the right-hand end, the locking pin 32 that was in contact with the cam surface 38 of the guide member 14, pushed into the holding member 34, and disconnected from the locking protrusion 31, is removed from the carriage. 6 moves to the left, protrudes while contacting the cam surface 38, enters between the locking protrusion 30 and the cam surface 31, and engages the center cam 41.
is raised, so it does not come into contact with it but contacts the locking protrusion 30, and the sliding plate 11 is in the solid line state in FIG.
is moved to the left as shown by the dashed line in FIG. The locking pin 32 is connected to the cam surface 37 of the guide member 13.
The sliding plate 11 is pressed into the holding member 34 by the cam surface 37 and stops in order to break the engagement with the locking protrusion 30 . Therefore, the position of the left end of the sliding plate 11 is the position where the engagement between the locking pin 32 and the locking protrusion 30 is cut off, and that position
It can be changed arbitrarily by appropriately changing the position of the cam surface 37 of No. 3. This change is made when selecting which needle of the rear needle bed to tack the crossover thread 60, starting from the needle at the end on the little finger side.

By moving the sliding plate 11 to the left, the crossing thread guide member 1
7 also moves to the left with the pin 23 in pressure contact with the lower surface of the guide cam 24, and when the pin 25 comes into contact with the inclined cam surface 25 of the cam 24, the jump thread guiding member 17 is moved by the spring. 22 pivots around the support pin 16, and the thread locking portion 18 at the tip is raised as shown by the dashed line in FIG. At this time, the crossover thread 60 is locked by the locking part 18 and guided from the little finger side end to the top position of the second needle ₅₂ . The state of this crossover thread 60 is shown by the two-dot chain line in FIG.

When the crossover thread 60 is guided to the upper part of the needle 52 by the thread locking part 18, the needle 4 near the little finger side end of the needle bed ₂ is moved up and down for knitting by a lock (not shown) of the carriage 6. The operation has been completed and the needle has been lowered, and on the other hand, the rear needle 5 near the little finger side end of the rear needle bed 3 has not been locked. In this state, when the carriage 6 is reversed from the left end and moved to the right, the rear needle 5 is raised by the carriage lock (not shown), but the thread locking portion 18 of the crossover thread guide member 17 is on the little finger side. Second needle 5 from the end
When the needle ₅₂ has risen to the tack position because the crossover thread 60 has been pushed to the top of the needle ₅₂ , the rear needle 5 is pushed in by the crossover thread guiding member 17.
The crossover thread 60 held on the upper part of ₂ is now hooked. (See FIG. 1) The rear needle ₅₂ is then raised further by the action of the lock caused by the rightward movement of the carriage 6, so that it engages the jumper thread 60 in the lower shank portion of the latch.

Meanwhile, as the carriage 6 moves to the right, the locking pin 32 moves to the right while contacting the cam surface 37, comes into contact with the locking protrusion 30, and moves the sliding plate 11 from the position shown by the dashed dot line in FIG. 1 to the position shown by the solid line. let

In addition, the raised rear needle 5 is fed the thread 52 to the hook when it is slightly lowered from the highest position, and as the rear needle 5 descends, the latch is latched, and the hook passes through the loop L made in the previous course, and the thread of the course is 52 forms a new loop L, but since the crossover thread 60 of the thread ₅₁ , which was previously attached to the shank of the needle 52, was not attached to the hook of the needle ₅₂ , it passes through the loop L of the course. There is no problem, and it appears to be in a tacked state. The crossover thread 60 is connected to the rear needle 5 ₂
and the yarn feeder 55 located at the yarn feeder standby position 50.
It will extend between.

In this state, the yarn feeder 56 feeds the yarn 52 to the rear needle 5, and the knitting of the rear knitted fabric by the rear needle 5 is completed, and when the carriage 6 is reversed, knitting of the next course by the front needle 4 is started again. When the carriage moves to the left for this course formation, the center cam 41 is lowered, and as the carriage 6 moves to the left, the locking pin 32 moves to the left.
1, the locking pin 32 and the locking protrusion 30 of the sliding plate 11 are prevented from engaging with each other, and one course can be completed without moving the crossover thread guiding member 17. Finish organizing. Then, when knitting the next course, the crossover yarn guiding member 17 is advanced in the same manner as described above.

As mentioned above, the advance of the crossing thread guiding device 17 is as follows:
It is determined by how many courses the crossing thread 60 is tacked, and as shown in the example shown in Fig. 4, 2
In order to tack a course once, advance once every two courses, and as in the examples shown in Figures 5 and 6, to tack once every 3 courses, advance once for every 3 courses. It would be a good thing if they were allowed to advance.

However, in the above case, when the rear needle 5 is tacked once every two courses, the gap between the front knitted fabric and the back knitted fabric, that is, the part indicated by the chain line S, is in a state where the sinker loop of that part is tacked every other course. A crossing yarn appears on the outer surface of the front knitted fabric and the back knitted fabric, so that when the rear needle 5 is tucked once every three courses, the crossing yarn appears on the outer surface of the front knitted fabric and the back knitted fabric in a tacked state across the two courses of sinker loops shown by the chain line S. The intervals between tacked courses should be kept as close as possible.

In the embodiment shown in FIGS. 4 and 5, the thread is tacked from the little finger side end of the rear needle 5 to the second needle ₅₂ , and in the example shown in FIG. 6, the thread is tacked to the first needle ₅₁ . are doing. Although the tacking position is arbitrary, the needle that tucks the crossing thread in the above is determined by the advanced position of the thread locking part 18 of the crossing thread guiding member 17, and the position is determined by appropriately displacing the guide member 13. , is determined by changing the position where the locking pin 32 and the locking protrusion 30 of the sliding plate 11 are separated.

In the organization chart shown in FIGS. 4 to 6, two types of yarns 51 and 52 are fed by two yarn feeders 55 and 56.
An example is shown in which knitting is performed by changing the yarn feeder, but as the number of yarn feeders increases, the number of knitting stop jump yarns also increases accordingly, and in that case, multiple knitting stop jump yarns are aligned. It will be processed in the state.

Further, in the above embodiment, the yarn feeder standby position is provided on one side of the needle bed, but the yarn feeder standby position is provided on both the left and right sides, knitting pause jumper insertion devices are provided on both the left and right sides, and the yarn feeder standby position is provided on both the left and right sides. Of course, it is also possible to tuck knitting-pausing jump yarns on both the front and back of the knitted fabric.

An example of the implementation of the present invention has been described above, but
The present invention is not limited to the above-mentioned bag knitting, and even in a flat knitting machine with one needle bed, it is possible to similarly tuck the rest jump yarn to a part of the knitted fabric, It is possible to prevent long yarns from floating above the knitted surface.

As described above, when knitting striped patterns or other knitted fabrics using multiple types of knitting yarns in a flat knitting machine, the present invention simply moves the dormant jump yarns in a dormant state to a predetermined needle position using a jump yarn guiding device. Just by guiding it to the upper position, the crossing yarn can be tacked to the knitted fabric by locking the crossing yarn to the needle that rises with a lock in the same way as in normal knitting. There is also no need to move the yarn feeder when it is inactive.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view of the device of the present invention, Fig. 2 is a cutaway side view taken along the line of Fig. 1, Fig. 3 is a structure diagram of a knitted fabric according to the conventional method in which a dormant jump yarn appears, Figs. Figures 5 and 6 are organization charts of knitted fabrics knitted by the method of the present invention, Figure 4 is an organization chart in which a paused jump yarn is tacked on the second stitch once every two courses, and Figure 5 is an organization diagram of a knitted fabric knitted by the method of the present invention.
Fig. 6 is an organization chart in which a paused jump yarn is tacked on the 2nd stitch once in a course, Fig. 6 is an organization chart in which a paused jump yarn is tacked on the 1st stitch once in 3 courses, and Fig. 7 shows the positional relationship between the knitted fabric and the yarn feeder. FIG. 2... Front needle bed, 3... Rear needle bed, 4... Front needle, 5... Rear needle, 6... Carriage, 11... Sliding member, 3
0, 31... Locking protrusion, 32... Locking pin, 5
1, 52, 53, 54...thread, 55, 56, 5
7, 58... Yarn feeder, 60... Knitting stop jump yarn.

Claims (1)

[Claims] 1. Using needles inserted in a pair of front and rear needle beds, the front knitted fabric and the back knitted fabric are alternately and continuously knitted using the first knitting yarn, and then the second knitted fabric is knitted. When knitting a bag-shaped flat knitted fabric by changing to yarn, the first yarn feeder that was feeding the first knitting yarn is
The knitting stop jump yarn of the first knitting yarn is bridged between the knitted fabric and the yarn feeder, and the knitting yarn is made to stand by at the yarn feeder standby position, and the next course that has been waiting at the yarn feeder standby position is knitted. A second yarn feeder for feeding the second knitting yarn feeds the second knitting yarn to the front and rear needles, and knits one or more courses of the second color pattern fabric using the yarn, After the knitting of the needle bed on one side of the front and back using the continuing second yarn is performed from the yarn feeder standby position side, the above-mentioned
The knitting suspended crossover yarn of the first yarn extending between the first yarn feeder and the knitted fabric is guided by the crossover yarn guiding member to the upper part of the needle at an appropriate position of the needle bed on the other side. When the needle is raised to knit the knitted fabric, transfer the knitting stop jump yarn of the first yarn from the jump yarn guiding member to the needle, and engage the knitting stop jump yarn of the first yarn to the shank portion of the needle. Then, the second knitting yarn is fed when the needle subsequently rises to the highest position and then reverses downward, and the needle is knocked over, so that the first knitting yarn is attached to the sinker loop created by the knockover. Knitting with yarn is suspended.The crossover yarn is locked in a tucked state, and then one or more courses are knitted with a second yarn, and the knitting yarn extending from the tucked part is locked in the sinker loop at the part where the front and back knitted fabrics are connected. How to insert a knitting suspension jump yarn into a knitted fabric. 2. A method for inserting a knitting stop jump yarn into a knitted fabric according to claim 1, wherein the yarn feeder is made to stand by only on one side of the needle bed. 3. A method for inserting a knitting stop jump yarn into a knitted fabric according to claim 1, wherein yarn feeders are placed on standby on both sides of the needle bed. 4. A method for inserting a knitting stop jump yarn into a knitted fabric according to claim 1, wherein the knitting stop jump yarn is guided from one side of the needle bed to the upper part of the needle. 5. A method for inserting a knitting stop jump yarn into a knitted fabric according to claim 1, wherein the knitting stop jump yarn is guided from both sides of the needle bed to the upper part of the needle. 6 Located on the sides of a pair of front and rear needle beds with their tips facing each other, they are slidably supported by a guide member and move together with the carriage when engaged with a locking pin that reciprocates together with the carriage. A sliding plate having a locking protrusion capable of engaging with the locking pin is provided, a crossing thread guiding member is provided at the tip of the sliding plate,
A device for inserting a knitting halting jump yarn into a knitted fabric, characterized in that a jump yarn guide member is movable forward and backward between a yarn feeder in a yarn feeder standby position and the needles of the above-mentioned front and rear needle beds. 7. The device for inserting a knitting stop jump yarn into a knitted fabric according to claim 6, wherein the yarn feeder standby position is provided only on one side of the needle bed. 8. The device for inserting a knitting stop jump yarn into a knitted fabric according to claim 6, wherein yarn feeder standby positions are provided on both sides of the needle bed. 9. A device for inserting a knitting stop jump yarn into a knitted fabric according to claim 6, wherein the knitting stop jump yarn insertion device is provided on one side of the needle bed. 10. A device for inserting a knitting stop jump yarn into a knitted fabric according to claim 6, wherein the knitting stop jump yarn insertion device is provided on both sides of the needle bed.