JPS5839942B2 - A method for knitting the heel of socks and a circular warp knitting machine for carrying out the method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing socks, and more particularly to a method for knitting the heel portion of socks and a circular warp knitting machine for carrying out the method.

Soviet inventor's certificate No. 388067 (Cl.

2, D04B25/14) discloses the prior art of the present invention.

In the currently known method, the heel of a sock is knitted by two sets of warp threads that move along the rows of knitting needles and are guided by two thread guide systems that move between the knitting needles.

The method includes knitting loops of a main course and knitting between the main courses a supplementary course shorter than the main course, the loops of the supplementary course being knitted using a portion of the warp threads of the two sets. In that case, a part of the knitting needles along the outer periphery of the needle barrel is paused.

In this known method, when knitting the heel of a sock on a circular warp knitting machine, the heel lacks the reinforced loop structure that is obtained on a weft knitting machine.

Additionally, the heel portion of warp knit socks made using known methods will deteriorate more quickly than the sole portion of the foot.

Moreover, the three-dimensional shape of the heel of the socks produced by this method is not entirely satisfactory.

The present invention provides a heel part of the sock that increases the strength of the heel part of the sock and improves its three-dimensional shape by improving the pattern of movement of the thread guide and thus the pattern of guiding the warp threads. The object of the present invention is to provide a knitting method and a circular warp knitting machine for carrying out the method.

The method of the present invention for knitting the heel part of socks with a circular warp knitting machine includes:
By using a two-warp guide system and moving the thread guide between the front rows of the knitting needles and between the knitting needles, two sets of warp threads are guided onto the knitting needles to knit the loops of the main course, and additional loops are created between the main courses. A course consisting of is knitted from one of two sets of warps.

In this case, when compared in length in the course direction, the course of the supplementary loop is shorter than the course of the main loop, and a certain number of knitting needles are kept at rest along a part of the outer circumference of the needle barrel.

and in the method of the invention, the thread guides of the two warp thread guide systems move along the front of the needle row while knitting the course of the supplementary loops and to the rear of the needle row while knitting the course of the main loops. In between, these warp thread guides are moved by a larger swing amount than the moving step, that is, the swing amount.

Hereinafter, the course of the supplementary loop will be simply referred to as the supplementary course.

By increasing the amount of swing of the yarn guide that moves behind the knitting needles, the number of link sections or diagonal warp sections that cross between the loops of adjacent complementary courses is increased, thereby The tensile strength of the heel part increases, and the abrasion resistance of the heel part increases.

This is because the thicker supplementary course instead of the main loop course provides an abrasive surface that wears out.

The supplementary courses also increase the thickness of the knitted fabric, thus improving the three-dimensional shape of the heel.

Yet another feature of the invention is that the two sets of warp yarns used to create the hem or edge loops of the supplementary course are fed under tension greater than the tension under which the remaining yarns are fed; And its feed rate consists in being fed at a slower speed than the yarn knitting the remaining loops of the supplementary course.

It is therefore possible to close the holes occurring at the loops of the edge of the heel, and a smooth transition is obtained from the lateral loop structure belonging to the upper of the sock to the loop structure of the heel.

It is also possible to set the warp thread feed speed when knitting the loops on one edge of the supplementary course to be higher than the warp thread feed speed when knitting the loops on the opposite edge of the supplementary course.

A circular warp knitting machine for implementing the method as described above comprises a needle barrel with knitting needles and sinkers, two homonymous annular knitting machines movable between the knitting needles and along the needle row of the knitting needles. It is comprised of two sets of warp guides arranged in a thread guide bar.

The mechanism that moves the two sets of warp guides along the rows of knitting needles is
a number of main cams mounted on the main drive shaft corresponding to the number of said annular thread guide bars; said main cams mounted on spring-loaded arms operatively connected to the respective annular thread guide bars; It is configured to include a cam follower corresponding to each cam.

The circular warp knitting machine of the present invention further includes two sets of warp providing means, a mechanism for actively feeding the two sets of warps from the providing means, and a spring-biased rest or thread hooking device. , comprising a motion section transmission drum for the device controlling the operation of the respective units constituting each part of the knitting machine, and a known mechanism for resting a certain number of knitting needles between knitting courses of supplementary loops. .

The machine of the present invention configured in this way has a shape different from that of the main cam in order to move the thread guide bar along the oblique front surface, and is coaxially mounted on the main drive shaft common to the main cam. and having a complementary cam disposed adjacent to the primary cam, the common drive shaft selectively directing the complementary cam to a cam follower on a spring-loaded arm in weaving a course of complementary loops. It is configured to be axially movable for engagement.

The mechanism for moving the common drive shaft is operatively connected to a motion segment transmission drum of a device for controlling the operation of the units of the knitting machine.

The mechanism for positively feeding the two sets of warp threads also has supplementary rubber-coated rollers which are elastically pressed against their respective drive drums for weaving the edge loops of the supplementary courses around that drive drum. When the warp yarns are hooked, the supplementary rubber-covered rollers are configured to be selectively disengaged from the respective drive drums of the warp positive feeding mechanism, and when the supplementary rubber-covered rollers are disengaged from the drive drums. A drive is provided for individually rotating the rollers.

Two sets of warp yarns other than the warp yarns for knitting the edge loops of the supplementary course are gripped and fed between the drive drum and the rubber-coated pressure roller, while knitting the edge loops. The warp yarns for the warp are fed by the rotation of said drive drum when knitting the main course, and by the rotation of a supplementary rubber-covered roller rotated by said drive when knitting the supplementary course. .

The structure of the mechanism for moving the annular thread guide bar of the present invention solves the problem of automatically controlling and knitting socks with heels.

That is, the supplementary loop course is knitted by the warp guide moving behind the knitting needles, giving a larger swing amount to the warp yarns than when knitting the main loop course.

This mechanism is structurally simple, has reasonable reliability,
It is provided to automatically switch from one knitting pattern to another and can also be used to knit other parts of the socks.

And it can be used to knit various tubular warp knitted products with general special geometric and decorative annular patterns.

When the knitting machine is switched to knit the heel and knits the edge loops of the supplementary course, the yarn feed is automatically switched from one predetermined yarn feed rate to the other and vice versa. For knitting purposes, means for reverse speed switching are provided with active warp feeding mechanisms.

In order to axially reciprocate a common drive shaft having a primary cam and a supplementary cam, the knitting machine of the invention is operatively coupled to a motion section transmission drum of a device for controlling the operation of the units of the knitting machine. and a sliding fork having a guide groove, a sleeve that fits rotatably around a common drive shaft and does not move in the axial direction thereof, and is connected to the sleeve and fits into the guide groove of the sliding fork. A stud is provided to prevent rotation of the sleeve as the common drive shaft rotates.

A further feature of the invention resides in a device for rotating the supplementary rubber-coated rollers, the device having a known disk-type transmission gearing, the drive disk of which is a mechanism for actively feeding the warp threads. operatively coupled to each drive drum;
The driven disc is then fixed to the shaft of a supplementary rubber-covered roller.

This device ensures that the supplementary rubber-coated rollers rotate and
The predetermined speed of rotation of the supplementary rubber-covered roller can be adjusted steplessly and reliably maintained while the heel is being knitted. .

The invention further provides that the knitting machine includes a knitting machine operatively coupled to a motion section transmission drum of a device for controlling the operation of the knitting machine unit, for selectively disconnecting the supplementary rubber-coated rollers from their respective drive drums. One arm system is provided.

that is, there are two arms that engage a stationary support shaft extending parallel to the supplementary rubber-covered roller;
The other ends of the two arms engage spring-loaded sliding blocks that serve as bearings for the shafts of the respective complementary rubber-covered rollers.

Yet another feature of the invention is that the supplementary rubber-covered roller is made of two parts disposed on a common shaft.

In other words, as a drive device for rotating the rubber coated roller, 2
disc-type variable speeders are arranged at opposite free ends of a common shaft.

Each drive disc of this transmission is operatively connected to the drive drum of the active warp feeding mechanism, and the driven disc of one transmission is connected to a common shaft to which one complementary rubber-covered roller is directly fixed. The driven disc of the one-sided transmission is connected to a sleeve to which the other complementary rubber-coated roller is fixed and rotatably fitted on the common shaft.

This solves the problem of actively feeding the warp threads into the edge loops of the supplementary course, with a simple construction and at two different speeds, which also allows the threads to be fed in all other knitting modes. A favorable and stable feed rate is obtained.

The feeding speeds of both threads for the edge loops are steplessly and individually adjustable.

The present invention will be explained in detail below with reference to the drawings.

Fig. 1 shows the knitting needle 1 that is inactive when knitting the supplementary loop courses raJ and rbJ necessary for the heel portion, and the supplementary loop course “a” necessary for the heel portion.
'' and knitting needle 1a which is always in operation, including when knitting ``b'', and the penultimate course of the leg part of the sock knitted by needle 1 and needle 1a.
k" and the last course lf of the leg part, the courses "c" and "d" of the jJj-shaped main loop, and the annular course 2 of the sole of the sock.

The method of knitting the heel part of the socks of the present invention is as follows.

The whole sock is knitted, for example in tricot-tricot knitting or in pattern knitting, with two sets of warp threads A1 and A2 (FIG. 2) guided by two sets of thread guides.

The two sets of warp yarns are moved by their warp guides in needle quantities such as needles 1 and 1a, and are also moved in opposite directions along the front of the knitting needles by the warp guides, thereby causing the first circular main course to move in opposite directions. "k", "kl", "c", "
d” and “2” are knitted inside this sock.

FIG. 1 shows the knitting process of the heel portion of a sock, showing a knitting pattern using the warp A1 of one of two sets.

The pattern of the other set of warp threads A2 is identical to that shown in FIG. 1, except that they move in the opposite direction after the needles rather than in front of them.

Before the formation of the heel part begins, two circular courses "k" and "kl" of the loops of the leg part of the lower part of the shoe are placed on all needles 1 and 1a with the warp thread A1 introduced from each warp thread guide,
For example, it is knitted with tricot knitting.

When the heel part is knitted, there is a portion of the needle 1 that is idle or inactive along a part of the outer circumference of the needle barrel;
The two courses "a" and rbJ of the first supplementary loop are then knitted with the needle 1a, which continues to remain active.

While guiding the warp threads A, to knit courses raJ and "b", the thread guide moves along the front of the knitting needle 1a, and the knitting needle 1a
is moved behind.

In this case, the thread guide swing is the leg course “k”.
The swing between knitting and "kl", for example, is larger than the first stitch.

Therefore, the linear part or link part molecule eJ of the loop of supplementary courses "a" and "b" is "k".

Equivalent loop part of “kl” course “el” or “rc”
j rd It is longer than the corresponding loop part of the J course.

After knitting the supplementary courses "a" and "b" using the knitting needle 1a, the needle 1 is then activated again and all needles 1 and 1a of the needle barrel cooperate to knit the two courses. The entire (i.e. circular) main loop course “.

” and rdJ are knitted.

While the main loop courses "C" and "d" are knitted, the yarn guide operates in the same manner as when knitting the main part of the sock, which includes courses rkJ and "kl".

The organization of supplementary courses "a" and rbJ is then repeated on the dais described above, with supplementary courses "a" and rbJ alternating with main loop courses "c" and "d", such that The arrangement is repeated a predetermined number of times.

On the other hand, while the supplementary courses "a" and rbJ are knitted as described above, the two sets of warp threads A1 and A2, which are particularly relevant to the formation of the edge loops of the supplementary courses "a" and "b" , under a tension greater than the tension at which the other yarns are fed, and at a feed rate less than the feed rate for the loops other than the supplementary course.

For this reason and because of the rest of the knitting needles along a part of the outer circumference of the needle barrel, the straight section or link "e2" of the edge loop 3 is shorter than the straight section or link "e". , as shown in Figure 1, these links "
e2'' are arranged according to the knitting pattern used to knit the socks.

The delivery speed of the warp threads sent to form the edge loops on both sides of the supplementary courses "a" and "b" is:
maintained at the same speed.

However, on one side of the supplementary courses "a" and "b", the feed rate of the warp threads sent to knit, for example the loop 4 with the link "e3", on the other side of the supplementary course, for example the edge loop 3 It is preferable that the feed rate is higher than the feed rate of the warp threads sent for knitting.

This is because when knitting the supplementary course, a certain number of knitting needles are at rest, and the edge loops 3 and 4 and their corresponding links "e2" and "e3" are arranged as shown in Figure 1. It is.

After the heel part has been knitted, that is, after the last supplementary courses raJ and "b" have been knitted, the needles 1 and 1a work together to knit the annular course 2 of the sole of the foot and knit the subsequent part of the sock. The organization begins.

The above-described method of knitting the heel of a sock is performed on a known circular warp knitting machine, a portion of which is shown in FIG.

The knitting machine comprises a needle barrel 5 with knitting needles 1 and 1a which move up and down in a vertical plane by known means; a sinker 6 which moves radially by also known means.

Furthermore, this knitting machine is provided with two sets of leftover warp guides 7 and 8, which warp guides 7 and 8 can move between the knitting needles 1 and 1a, and can move along the needle row of the knitting needles. possible, respectively arranged between two concentrically, ie coaxially arranged, grooves 9 provided in the annular guide bars 10.11.

There is also a mechanism 12 shown in FIGS. 3 to 6 for moving the annular guide bar 10.11 along the row of knitting needles.

This knitting machine also has two sets of warp threads A1 and A2, and a mechanism 13 shown in FIG. 7 for actively sending out each set of warp threads AI and A2; it is biased by a spring. rest,
There are thread hooks 14 and 15; and, although not shown in the drawings, there are well-known devices for controlling the operation of the mechanisms of the knitting machine.

This device includes a known mechanism for idle or resting a group of needles, such as needle 1, at a predetermined stage during the knitting process of knitting supplementary courses, which is generally incorporated into the knitting machine; A motion segment transmission mechanism that controls the movement of the entire mechanism via an articulated linkage system, i.e. a cam cylinder or drum B in FIG.
It is included.

Apart from the mechanisms described above, the circular warp knitting machine includes other mechanisms for automatically operating the knitting machine which are well known in the art.

The warp guides 7 and 8 in FIG. 2 are hook-shaped plates with round projections 16, and the warp threads A1 or A2
An elongated arm 17 is provided at one end with a thread 18 through which the threads pass.

The protrusions 16 on the hook-shaped portions of the warp guides 7 and 8 are fitted into annular internal cams 19 and 20, respectively, by a known mechanism not shown in FIG. 2, which is provided in the knitting machine. , reciprocates in the direction of arrow C.

Such reciprocating motion causes the warp guides 7 and 8 to swing in the direction of the arrow, and the swinging motion causes the thread guides to move between adjacent pairs of knitting needles 1.

In the circular warp knitting machine in one embodiment of the present invention, the warp guide 7
and 8, the mechanism 1 shown in FIGS. 3 and 4 for moving the thread guide bars 10 and 11 along the row of knitting needles.
2 is used.

This thread guide bar actuating mechanism 12 includes a main cam 22, 23 and a common drive shaft 21 to which it is fixed.

The main cam 22 engages a cam follower 24 provided in a forked support 25 on the arm 26, and the main cam 23
Cam follower 27 provided in the forked support part 28 on 9
is engaged with.

As shown in FIG. 4, the arms 26 and 29 are each swingably supported by the frame, one end of the arms 26 and 29 is biased by springs 30 and 31, and one end is attached to the respective rod 3.
2 and 33 to the outer thread guide bar 10 and the inner thread guide bar 11.

In the circular warp knitting machine of this embodiment, the yarn guide bars 10 and 11 are engaged in guideways 34 and 35 provided stationary in the knitting machine, and are located at the center of the knitting machine, indicated by 01-01 in FIG. It can rotate around its axis.

A supplementary cam 36 coaxially paired with the main cam is provided adjacent to the main cam 22 and on the drive shaft 21 shown in FIG. It is coaxially provided adjacent to the other main cam 23.

A common drive shaft 21 is reciprocated axially according to a predetermined sequence in order to selectively engage the supplementary cams 36, 37 with cam followers 24, 27 mounted on spring-loaded arms. It is now possible to perform sliding movements.

That is, the common drive shaft 21 is operatively connected to the motion section transmission drum B of the device for controlling the operation of the mechanism of the knitting machine, and is capable of reciprocating sliding movement.

As shown in FIG. 3, one end of the shaft 21 is connected to the guide path 3 of the frame.
8 and has a bevel gear 39 at its other end, with which it is kinematically connected by a key 40 provided for the sliding movement of the shaft 21. It can be slid in the axial direction from

The bevel gear 39 meshes with another bevel gear 41 fixed to a shaft 42 that drives the knitting machine.

In order to reciprocate the common drive shaft 21 in the axial direction, the thread guide bar actuating mechanism 12 includes a sliding fork-like member 43 and a shaft 2.
The sleeve 44 is fixed by lock rings 45 and 46 so as to rotate on the sleeve 1 but not to move axially.

The sleeve 44 is provided with two oppositely extending studs 47 which fit into grooves 48 in the sliding fork 43.

The sliding fork-like member 43 fits into the guideway 49 of the frame and is operatively connected to the motion section transmission drum B, for example by means of a slot 50 and a linkage.

There is a retaining device to keep the sleeve 44 from rotating with the common drive shaft 21, which in this example is a rod 51 fixed to one of the studs 47;
1 is slidably held in a guide hole 52 in the frame.

Figures 5 and 6 show the main cam 22.2, respectively.
3. The combined outline of supplementary cams 36 and 37 shows their relative angular relationship.

The main cam 22 has al, bl, cl, dl, el, and fl.

gl, hl, il, kl, 11,
ml, nl, 03, pt.

rl, and the main cam 23 has a2. A2. c2) d27e25
f2tg2. A2. i2. 2,12. m2. n2. o
2゜p2. There is a cam section r2: That is, during one rotation of the cams 22 and 23, four courses of closed tricot stitches are knitted.

The two main cams 22 and 23 are angularly shifted from each other around the common drive shaft 21 in a staggered manner, so that a double tricot is knitted with the front and back threads swung in opposite directions.

The supplementary cams 36 and 37 shown in FIGS. 5 and 6 have a different shape from the outer contours of the main cams 22 and 23, as indicated by dotted lines in FIGS. gl, hl, Jl
, 1,112 m1 is in the cam 37, and 12. m2. n2.
o2. p2. There are r2 and they are, for example, the main cam is 1
While rotating, two main courses of double tricot knitting and two supplementary double courses of woolen knitting or closed knitting with closed stitches are knitted in conjunction with the main cam. .

The supplementary cams 36 and 31 are angularly staggered with respect to each other about the axis of the common drive shaft 21, and in relation to the main cams 22 and 23, two courses of double tricot knitting are achieved by mutually opposite swings; Two courses of double cross stitch are knitted.

Active sending mechanism 13 for two sets of warp threads A1 and A2 shown in FIG.
, there is a spool 5 for the warp thread A2 passing through the threads of the threads of one set of threads, that is, the inner set of rice guides 8 shown in FIG.
2 and a spool 53 for the warp yarn A1 passing through the threads of the guide γ for the yarns of the other set, that is, for the outer set of rice, are provided in each warp providing means of the knitting machine.

Above the rubber-coated yarn supply drive drums 54 and 55 there are spring-loaded rests 14 and 15, respectively.

Pressure rollers 56 and 5γ coated with rubber on arms 58 and 59 pivoted and biased by springs 60 and 61;
is pivotally supported, and the pressure rollers 56 and 57 are connected to the driving drum 5.
4 and 55 respectively.

The warp threads A2 are fed through the guides 8 for the inner set of rice to form the edge loops 3 and 4 shown in FIG.
A separate spool 62 is provided for the warp threads A1, 1, which is fed through the guides 7 for the outer set of rice threads to form the edge loops 3, 4. It is being

Furthermore, the warp active sending mechanism 13 includes yarn supply drums 54 and 5.
5 are provided with spring-biased, rubber-covered complementary rollers 64 and 65, respectively, for the two sets of warp threads A.
2,2 and A1,1 are fed to run over the drums 54 and 55 to form the supplementary course raJ and the edge loops 3 and 4 of "b".

Supplementary rubber-coated rollers 64 and '65 are provided so that they can be separated from their respective drive drums 54 and 55, and when separated from their respective drive drums 54 and 55, they can be connected to other rotary drives. Concatenated.

A supplementary rubber-coated roller 64 is mounted on a shaft 66 (FIG. 8) that extends above the drive drum 54 and fits into sliding blocks 67 and 68 that act as bearings and slide. It is being

The sliding blocks 67 and 68 fit into guide frames 69 and 70, respectively, and are pressed from above by compression springs 71 and 72.

Beside the rest 14 in FIG. 7 there is a separate identical thread for each warp thread A2, 2 which is fed through the guide 8 for the inner set of teeth to form the edge loops 3 and 4. A tension device 73 is arranged.

Another supplementary rubber-covered roller 65 is mounted on a shaft 74 (FIG. 8) that extends above the drive drum 55, the shaft γ4 acting as a bearing and supporting the sliding blocks 75 and 76. It is fitted inside.

The sliding blocks γ5 and 76 fit into guide frames 77 and 78, respectively, and are pressed from above by compression springs 79 and 80.

Beside the rest 15 in FIG. A tension device 81 is arranged.

The thread tensioning devices 13 and 81 are each pressed, for example, by identical helical springs 82 and 83.

Engaging the lower portions of sliding blocks 67 and 68 in FIG. 8 are arms 84 and 85, which arms are fixed to a support shaft 86.

Similarly, there are arms 87, 88 which engage the lower part of the sliding blocks 75 and 76, and which are fixed to a support shaft 89.

The arms 84 and 87 are pivotally connected to each other via a rod 90, and the arm 8γ is a bell crank;
It is operatively connected via a pull rope 91 or the like to a motion section transmission drum of a device for controlling the operation of the knitting machine (not shown), in this way the supplementary rubber-covered rollers 64 and 65 are connected to the respective drive drum 54. 55.

A well known disc type transmission is used to drive the supplementary rubber coated rollers 64 to rotate independently.

The driven disc 92 of the transmission is secured to the shaft 66 by a setscrew 93 and the drive disc 94 of the transmission is operatively connected to the shaft 95 of the drive drum 54 by an intermediate shaft 96.

A drive disk 94 is fixed to one end of the intermediate shaft 96, and a pair of bevel gears 97 and 98 are provided, the bevel gear 97 is fixed to the other end of the shaft 96, and the gear 98 is fixed to the shaft 95. .

The drive for independently rotating the supplementary rubber-covered rollers 65 is similar to that described above, the disc-type transmission having a driven disc 99 fixed to the shaft 74 and a drive for it. The disk 100 has a pair of bevel gears 102 and a shaft 104 of the drive drum 55.
vertical intermediate shaft 1 operatively connected via 103;
It is fixed at 01.

Due to the above-described structure of the mechanism 13 for actively feeding the two sets of warp threads, the complementary course "a" and the loops 3 at the edges of IN
and 4, the feeding of yarn at the same speed is guaranteed.

If it is necessary to make the warp feed rate for the edge loops on one side of the supplementary courses "a" and "b" greater than the warp feed rate for the edge loops on the other side of these courses. For example, as a modification of the embodiment of the present invention,
The additional rubber-coated roller described above may be constructed of two parts 105 and 106 as shown in FIG.

Regarding the modified example of rollers 64 and 65, in FIG.
The outer thread guide bar 10 for feeding warp threads is shown.

The two parts 105 and 106 are fitted on a common shaft 107, and the parts 105 and 106 can be rotated by two disc-type transmissions 108 and 109, respectively, of known construction.

The known transmission is arranged at both ends of the rubber-coated roller 65, i.e. next to the two sections 105 and 106, respectively.

A portion 105 of the roller 65 is fixed directly to the common shaft 107 and has a sliding block 75 at the end of the common shaft 107.
Furthermore, the driven disk 110 of the transmission 108 is fixed.

A drive disk 111 of this transmission 108 is fixed on an intermediate vertical shaft 112, which vertical shaft 112 is connected to a shaft 104 of a drive drum 55 and a pair of bevel gears 1.
13 and 114, they are operatively connected.

The other portion 106 of the roller 65 is fixed to a sleeve 115 which fits rotatably on a common shaft 107.

A sliding block 76 and a driven disc 116 of the transmission 109 are provided at the end of the sleeve 115 protruding from the portion 116 .

The drive disk 117 for the transmission 109 is connected to the drive drum 5
5 shaft 104 and an intermediate vertical shaft 118 operatively connected via a pair of bevel gears 119 and 120.

The operation of the warp knitting machine of the present invention will be explained below.

The process of starting and knitting the socks is carried out in the standard manner of knitting two-ply warp knits.

That is, move the knitting needles 1 and 1a in Fig. 2 in the direction of arrow E,
Two sets of warps A1 and A2 are guided by two warp guides, namely an outer warp guide 7 and an inner warp guide 8, and the warp guides 7 and 8 are moved in the radial direction of the knitting machine between the needles 1 and 1a. They reciprocate in opposite directions along the front of the knitting needles.

In this way, a course of circular loops, which is the main part of the sock, is knitted, and the knitted fabric of the sock is knitted in a double tricot or stitch-like manner, and by the radial movement of the sinker 6, the course of circular loops is knitted. always being pulled.

While this part of the sock is being knitted, as in the last courses "k" and "kl" in FIG. are the same, and since both warp guides 7 and 8 are swung in the same way along the front of the knitting needles, the feed amounts of all warp threads AI and A2 are the same.

While all parts of the shoe except the heel are being knitted,
The main cams 22 and 23 shown in FIG.
29. Via the rods 32 and 33 of FIG. 4, actuate the respective warp guide bars 10 and 11, so that the warp guide bars 10 and 11 are moved along the row of knitting needles.

A common drive shaft 21, pivoted from the common drive system of the knitting machine via shaft 42, bevel gears 41 and 39 and sliding key 40 in FIG. Sliding fork-like member 4 acting on sleeve 44 held by locking rings 45 and 46
3, it is held vertically in the lower position.

In this operating state, the follower 24 in FIG.
2 cam area a1. b1. c1. d1. f1゜gtfh1
txl, 1.11tm1. nlt 01tp1>r
The follower 27 in FIG.
cam area a2. b2. c2. d2. e2. f2゜g2.
A2 , i2t k2 , 12 > m2. n2.
o2t, p2゜r2 in sequence, and the common drive shaft 21
4, the thread guide bars 10 and 11 of FIG. 4 are actuated in a similar swing or shift along the needle rows of knitting needles 1 and 1a, so that the yarn guide bars 10 and 11 of FIG. Forms the course of the main loop of heavy tricot knitting.

When the knitting machine is switched to the state of knitting the heel part of the sock, that is, to the state of knitting the supplementary courses "a" and rbJ, the motion section transmission cam drum B shown in FIG. 3 of the device controlling the operation of the unit of the knitting machine , acting on the rod 50 to move the sliding fork-like member 43 at right angles to the common drive shaft 21, whereby the guide groove 48 of the sliding fork-like member 43 acts on the stud 47, so that the sleeve 44 and the lock ring 45 raises the common drive shaft 21 on which the main cams 22, 23 and the supplementary cams 36, 37 are provided.

In its raised position, the common drive shaft 21 has a lock ring 45
, 46, the sleeve 44, and the sliding fork-like member 43 hold it in its vertical position.

Even if the common drive shaft 21 is raised to the raised position,
Shaft 21 is rotated from gear 39 by keying 40, while followers 24 and 27 are brought into engagement with complementary cams 36 and 37.

However, the followers 24 and 25 remain not separated from the main cam 22,23.

Therefore, for every rotation of the common drive shaft 21, the follower 24
are the cam areas ml, n1, 01. of the main cam 22 in FIG. pl
, rl, al.

b12e1. dltel, fttgl, and the cam area Jh of the supplementary cam 36, hl t 11 tkl t 1
1 tm, t sequentially, and on the other hand, for each rotation of the common drive shaft 21, the follower 27 in FIG.
2t gsz A2>j2>k2,12. and the cam area 12 of the supplementary cam 37. m2゜n'2. o'2. p′2
．． r2 is engaged sequentially.

So while the two main courses "c" and rdl of FIG. 1 are knitted into the heel with all knitting needles, the cams 22, 23 of FIGS. 5 and 6 are knitted in a double tricot knitting mode. Shake the warp guide in the opposite direction to create a loop.

However, the two complementary courses Iaj and "b" are knitted on a particular knitting needle 1a consisting of cams 22 and 36 and cam 2
3 and 37, the thread guide bar 10.degree. 11 is moved along the row of knitting needles on the front and rear sides.

The amount of movement is larger than the swing or shift when forming the main courses IcJ and "d".

Therefore, the supplementary courses raJ and rbJ are, for example, close
It is knitted into a double box in the form of a cloth or woolen woolen.

Therefore, during one revolution of the common drive shaft 21 with the cams 22 and 36 and 23 and 37, all the knitting needles 1 and 1a
A complete cycle of forming the main courses "c" and "d" of the courses is carried out, and also a complete cycle of forming the two supplementary courses "a" and "b" by the knitting needle 1a. .

Once the knitting of the heel part of the sock is completed, the device that controls the operation of the knitting machine unit is moved to the rod 50 in Fig. 3.
act to retract the sliding fork-like member 43.

The common drive shaft 21 is then lowered into its first lower position and held there.

The supplementary cams 36, 37 are lowered together with the common drive shaft 21 and disengaged from their respective followers 24, 27 and simply move the thread guide bars 10 and 11 under the action of the main cams 22, 23.
is moved on the front side along the row of knitting needles.

Only when the two followers 24 and 27 engage the supplementary cams 22 and 23 can the common drive shaft 21 be moved vertically, an operation that will be readily understood by those skilled in the art of knitting machines.

A rod 52 holds the sleeve 44 so that the sleeve 44 does not rotate together with the common drive shaft 21 .

The supplementary cams 36 and 31 may be fixed independently to the common drive shaft 21, or directly in pairs with the main cams on the side surfaces of their respective main cams 22 and 23.

While the supplementary courses "a" and "b" of the heel of the sock are knitted, two sets of warp threads A121 and A2 are used to form the edge loops 3 and 4 of these courses. ，
2 is the warp A1 used to form the remaining loops of course “a” and rbJ? The warp threads A1. A
It is fed at a feed rate slower than the feed rate in step 2.

The warp yarn A2 shown in FIG. around and then through the spring-loaded rest 14 to reach the warp guide 8 and the main course "C" of the heel of the sock.
and "d" loops, and supplementary courses other than edge loops 3 and 4 are knitted into "a" and rbJ.

Similarly, the warp threads A1 are drawn from the spool 53 by the nip between the drive drum 55 and the pressure roller 57, pass through the spring-loaded rest 15, and are sent to the warp guide I to form the main course "c". It is knitted into a loop of rdJ and a supplementary course "a" other than loops 3 and 4 at the edges and a loop of rbJ.

Warps A2 and 2 from other warp providing means are supplementary courses r
used to form the edge loops 3, 4 of aJ and rbJ, whose warp threads A2, 2 are drawn from their respective spools 63 by a supplementary rubber-coated roller 64 which is actively rotating, and are then used for thread tension. It passes through the device 73 and then reaches the inner warp guide 8.

The warp threads A1, 1 of the other warp providing means are separated by comb covering rollers 65, also actively rotating, in order to form complementary courses raJ of the heel part and edge loops 3 and 4 of "b". It is pulled out from the spool 63 and passes through the thread tension device 81 to reach the outer warp thread guide 7.

The drive drums 54 and 55 are rotated at a predetermined angular velocity by respective carrier drive shafts 95 and 104 linked to the main drive of the knitting machine.

While all the loops of the sock except the heel are being knitted,
The sending amounts of the warp threads A1 t A2 , A471, and A2,2 are the same.

In the operating state of this knitting machine, the supplementary rubber-covered rollers 64 and 65 are mounted on the respective sliding blocks 67, 68, 75, 7
6 and via the respective shaft 66.74, the drive drum 5 is pressed towards the respective drive drum 54.55 by the respective spring 71°72.79.80.
It rotates at the same circumferential speed as 4.55.

In each case, the tension rope 91 is loose, and the arms 84, 85, 87, 88 in FIG.
7,68, 75, and 76, resulting in the respective transmission drive discs 94 and 100 and driven discs 92 and 99 being disengaged.

When the knitting machine is switched to the heel knitting state, the tension rope 91 is pulled by the motion section transmission cylinder of the device controlling the operation of the knitting machine, rotates the arm 87 and holds it in that state, and the shaft 89 to rotate arm 88, and rod 90 to rotate and hold arm 84, and shaft 86 to rotate arm 85.
Rotate.

The arms 84, 85, 87, 88 therefore move the respective sliding block 67.68.75.76 upwards against the force of the spring in the guide frame 69.70.77.78. .

By this upward movement of the sliding blocks 67 and 68, the warp threads A
The shaft 66 is raised together with the additional rubber-coated rollers 64 for feeding 2,2 and the driven disc 92 of the transmission.

On the other hand, the upward movement of the sliding blocks 75,76 raises the shaft 74 together with the additional rubber-coated roller 65 for feeding the warp threads A1,1 as well as the output disc 99 of the transmission.

As a result, the supplementary rollers 64 and 65 are disengaged from their respective drive drums 54 and 55, and the driven discs 92 and 99 of the transmission are disengaged from their respective drive discs 94 and 100.
64.6, thereby engaging a supplementary rubber-covered roller 64.6.
5 rotates at a predetermined circumferential speed.

Its circumferential speed is lower than the circumferential speed of the driving drum 54,55,
In this way, the feed speeds of the warp threads A2,2 and A1,1 can be changed.

Once the heel of the sock has been knitted, the tension rope 91 is loosened by a corresponding action of the device controlling the operation of the units of the knitting machine, so that the arm 87 is free and the arms 88, 84, 85 are also free. state.

As a result, the sliding blocks 67, 68, 75, 76 together with the shafts 66, 74 have their respective springs 71, 72, 79
．． 80 of force, thereby disengaging the transmission disc and forcing the supplementary rubber-covered rollers 64 and 65 into engagement and rotation with the respective drive drums 54 and 55.

Warp A2 used to knit edge loops 3 and 4
, 2 is adjusted by adjusting the feed rate of the respective shafts 66 and 7.
This is done by moving the driven discs 92, 99 along 4 and holding them in the adjusted position.

Adjustments to ensure engagement of the transmission discs are made by moving one drive disc 94, 100 along the respective vertical shaft 96, 101 and holding it in its adjusted position.

The supplementary rubber-coated roller of the alternative embodiment, in which the supplementary rubber-coated roller is comprised of two parts 105 and 106 as shown in FIG. 9, operates as follows.

A2. With the same feed rate for all A2,2.Al t A1,1, the arms 87,88 are held in their lower position by the device controlling the operation of the unit of the knitting machine, so that on one side the arm 87.88 is held in its lower position. The spring 80 connects the two parts 105 of the rubber-coated roller towards the surface of the rubber-coated drive drum 55 via the sliding block 76 and the shaft 107, and on the other side the spring 79 via the sliding block 75 and the shaft 107. .

The threads fed by the drive drum 55 and the two parts 105 and 106 of the Yum-coated roller are therefore fed with the same positive feed rate.

In this operating state, the discs 110 and 11 of the transmission 108
1 and the discs 116 and 117 of the transmission 109 are spaced apart and no rotation is transmitted to the shaft 107.

When the knitting machine is switched to the heel knitting state, the respective ends of the arms 87, 88 move the sliding blocks 75 and 76 into the compression springs 79, 80 by actuation of the device controlling the operation of the units of the knitting machine. Pushing against the force, the two parts 105 and 106 of the rubber-covered rollers are separated from the surface of the drive rubber-covered drum 55 and driven discs 110 and 11 of the transmissions 108 and 109, respectively.
6 is a respective drive disk 11 which is constantly rotated by a shaft 104 of one drive rubber-coated drum 55 via a pair of bevel gears and a vertical shaft 112° 118, respectively.
1,117.

In this state of heel knitting, one portion 105 of the rubber-coated roller is moved to the transmission 1 by the shaft 107 at a certain speed.
08, but the other part 106 of the rubber-covered roller is rotated at a different speed from the driven disk 116 of the transmission 109 via the sleeve 115.

That is, the respective angular velocities of the two parts 105, 106 of the rubber-covered roller are adjusted by moving the driven disc 110 in the longitudinal direction of the shaft 107 to adjust its mounting position, while by moving the driven disc 116 in the longitudinal direction of the sleeve 115 to adjust its mounting position. This is done by adjusting the position.

Note that the mounting positions of driven disks 110 and 116 are fixed using retaining screws.

Once the heel has been knitted, the arms 87, 88 are lowered under the action of the device controlling the operation of the units of the knitting machine, and under the force of the springs 79, 80 the parts 105 and 106 of the rubber-coated rollers are lowered. Returned to initial position.

[Brief explanation of the drawing]

Fig. 1 is a knitting structure diagram explaining the operation of the annular warp guide bar that guides the warp A1 when knitting the heel part, and Fig. 2 shows the relative relationship of each member used in knitting with a circular warp knitting machine. FIG. 3 is a drive system diagram of the mechanism for moving the annular guide bar along the needle row of knitting needles. FIG. 4 is a schematic plan view of the mechanism shown in FIG. 3 when viewed from above. Figures 5 and 6 are plan views showing the cam shapes and cam areas of the main cam and supplementary cam of the mechanism in Figure 3, and Figure 7 is a drive system diagram hinting at the mechanism for actively feeding the warp threads. Figure 8 is an implied drive system diagram of the mechanism shown in Figure 7 viewed from the side; Figure 9 is a modification of the mechanism implied in Figure 7 in which the supplementary rubber-coated roller is composed of two parts. Examples are shown below. In addition, 1 and 1a are knitting needles, 2 is a circular course, 3 and 4 are edge loops, 5 is a needle barrel, 6 is a sinker, 7°8 is a warp guide, 9 is a groove, 10 and 11 are thread guide bars, 12 is a thread guide bar operating mechanism, 13 is a warp active feeding mechanism, 14 and 15 are spring-biased rests, 16 is a round protrusion, 17 is an arm, 18 is a thread stitch, 19 and 20 are annular internal cams, 21 is the common drive shaft, 22.23 is the main cam, 24.27 is the cam/
Follower 25 is a bifurcated support part, 26 and 29 are arms,
34, 35 are stationary guide surfaces, 36, 37 are supplementary cams, 4
3 is a sliding fork-like member, 44, 115 is a sleeve, 5
4, 55 are yarn supply drive drums, 56.57 are rubber-covered pressure rollers, 62.63 are spools, 64.65 are rubber-covered rollers, 67° 68.75, 76 are sliding blocks, 7
3, 81 is a tension device, 86.89 is a support shaft, 92.99, 110, 116 is a driven disk, 94.
100, 111.117 is the drive disk, 105.10
6 are half parts of the rubber-coated roller 65, 107
is a common shaft, 108 and 109 are disc type transmissions,
raJ, rbJ are supplementary courses, "c" and "d" are main courses, AI, A2 are warp threads, k is the next course from the last, k
l is the last course, e2. e3 indicates a link, and B indicates a motion segment transmission drum.

Claims (1)

[Claims] By guiding two sets of warp threads by twelve thread guide systems, the two sets of warp threads are provided with movement along the front of the knitting needles of the warp knitting machine and movement between the knitting needles. knitting the course, and further resting a part of the knitting needles in a supplementary course having a length in the course direction shorter than the length in the course direction of the plurality of loops in the main course in a predetermined warp among the two sets of warps; In the method of knitting the heel part of a sock using a circular warp knitting machine in which knitting is carried out in a knitted fabric knitted from the main course by
Move along the front and back of a and select the supplementary courses raJ and ``b.
”, the yarn guide γ is used during knitting of the main courses rcJ and rdJ. 8. A method for knitting a heel part of socks, characterized in that the heel part of socks is moved by a swinging amount larger than the swinging amount by which the number 8 is moved. 2 Said supplementary course “a” and loop 3 of the edge of rbJ
, 4 are sent with a tension greater than the tension used when sending the other warps to the warp knitting machine, and the edges of the supplementary courses raJ and rbJ are 2. The method according to claim 1, wherein the yarn is fed at a slower speed than the yarn feeding speed for knitting loops other than the loops of . 3. The feed rate of the warp fed to knit the loop 4 on one side edge of the supplementary course "a" and rbJ is such that the feed rate of the warp threads sent to knit the loop 4 on the opposite edge of the supplementary course raJ and rbJ is 3. The method according to claim 2, wherein the feed rate is set higher than the feed rate of the warp threads sent to the machine. 4. A needle barrel equipped with knitting needles and sinkers, two sets of warp thread guides for moving two sets of warp threads provided from respective thread providing means between the knitting needles and along the needle rows of the knitting needles; a mechanism for moving each set of warp guides along the needle row of the knitting needles; a mechanism for actively feeding the two sets of warp threads to the knitting needles; and a mechanism for keeping predetermined knitting needles in a resting state while knitting a supplementary course. , a circular warp knitting machine for knitting socks, comprising a rest biased by a spring and a motion segment transmission drum for a device controlling the operation of each unit constituting each part of the knitting machine, , the two sets of warp guides 7.8 are respectively arranged in two coaxial annular thread guide bars 10.11 configured to be movable along the needle rows of the knitting needles, and the Yarn guide bar 10.1 is placed along the needle row of knitting needles 1, 1a.
1, the mechanism 12 for moving the thread guide bars has a number of main cams 22, 23 and supplementary cams 3 corresponding to the number of the thread guide bars.
6.37, an arm 26.29 operatively connected at one end to said thread guide bar 10, 11, respectively, and said main cam by means of a spring disposed on said arm 26, 29 and provided in said arm 26.29. 22.23 or supplementary cam 36
, 37, respectively.
24, 27, said main cam 22, 23 and supplementary cam 3
6.37 selectively engages the cam floors 24, 27 with the common drive shaft 21 coaxially fixed and axially movably mounted on the machine base of the knitting machine, and the supplementary cams 36, 37; and a mechanism for moving the common drive shaft 21 in the axial direction, and the supplementary cam 36.37 has a different outer shape from the main cam 22.23 and is close to the main cam 22.23. is fixed to a common drive shaft 21, and a mechanism for axially moving said common drive shaft 21 is operatively connected to a motion section transmission drum D of a device for controlling the operation of the units of the knitting machine; A mechanism 13 that actively sends two sets of warp yarns is a drive drum 5.
4.55, a rubber-coated processing roller 56.57 which is elastically pressed towards said drive drums 54, 55, and which is also configured to be elastically pressed towards said drive drums 54, 55. a supplementary rubber-coated roller 64.65 used for feeding the warp threads for knitting the supplementary course "a" and the loop 3.4 of the edge of rbJ; Drive drum 54.5
a mechanism for selectively disengaging from the drive drum 5;
a drive device for individually rotating said supplementary rubber-coated rollers 64, 65 in a state of disengagement with said supplementary courses raJ and ``b''; Two sets of warp yarns other than the warp yarns for knitting the loop 3.4 of the R section are held and fed between the drive drum 54.55 and the rubber-coated pressure roller 56.57, while the loop 3 of the R section . Circular warp knitting machine for knitting socks, characterized in that it is fed by the rotation of supplementary rubber-coated rollers 64, 65 rotated by the drive device. 5. A mechanism for axially moving the common drive shaft 21 is operatively connected to the motion segment transmission drum D and is connected to the guide groove 4.
8 and the common drive shaft 21
a sleeve 44 rotatably but non-slidably fitted to the sleeve 44;
and fixed to the sleeve 44 and the sliding fork 4
3, the stud 47 is fitted into the guide groove 48 of the common drive shaft 2.
5. The circular warp knitting machine according to claim 4, further comprising means for preventing rotation by one rotation. 6. The driving device for individually rotating the supplementary rubber-covered rollers 64, 65 is a disc-type transmission including a driving disc 94, 100 and driven discs 92, 99, and the driving disc 94, 100 are operatively connected to the shafts 66.104 of the respective drive drums 54,55, while the driven discs 92,99 are connected to the shafts 66.104 of the respective complementary rubber-covered rollers 64.65.
The circular warp knitting machine according to claim 4, characterized in that the circular warp knitting machine is fixed to 74. 7 arms 84, 85, 87 in which a mechanism for selectively disengaging said supplementary rubber-coated roller 64.65 from said drive drum 54.55 is operatively connected to said motion segment transmission drum D; , 88 and the arms 84, 85, 8 extending parallel to the supplementary rubber-coated rollers 64, 65.
7, 88 supporting jaws) 86, 89, and shafts 66 of the respective rubber-covered rollers 64, 65;
74 and acts as a bearing for the rubber-covered port with a spring.
Sliding blocks 67, 68, 7 biased to press rollers 64, 65 towards the drive drums 54, 55
5, 76, and the arms 84, 85,
The other ends of 87, 88 are the sliding blocks 67, 68, 75.
, 76, the circular warp knitting machine according to claim 4. 8 Shaft 107 with which the supplementary rubber-coated rollers are common
cut out from the two parts 105 and 106 placed above,
The drive devices for rotating the two parts 105, 106, respectively, are disc type transmissions 108, 109 arranged on both sides of the rubber-covered roller, and the two transmissions 108, 10
9 drive discs 111, 117 are operatively connected to the shaft 104 of said drive drum 55, and the driven disc 110 of one transmission 108 has a complementary rubber-covered roller half 105 attached thereto. The driven disc 116 of the other transmission 109 has a sleeve 115 on which the other part 106 of the complementary rubber-coated roller is mounted and rotatably fitted onto said common shaft 101 . Claim 4 characterized in that it is attached to
Circular warp knitting machine as described in section.