CZ300500B6 - Method for closing toes in knitting machine - Google Patents

Abstract

The task of this invention for closing toes in a knitting machine, especially for producing socks knitted from the toe to the top, is to transfer a solid starting (13) of knitted fabric (12) produced on knitting needles (18) of the first needle arc (P18), from one side of a needle cylinder in front of knitting needle (18) beard tops of the opposite second arc of needles (R18), located on the other side of the needle cylinder. In this solid starting (13) of the knitted fabric (12) is caught one or more warping yarn (1a, 2a, 3a, 4a, 5a, 6a), which, in cooperation with a device for guiding and controlling yarn tension, ensure the transfer of this solid starting (13) from the knitting needles, on which it has been knitted, to opposite knitting needles (18), placed on the circumference of the opposite side of the needle cylinder to the operational area of special transfer sinkers (14) located in grooves of a sinker ring, next to loop-forming sinkers (15), where the transfer sinkers (14) catch the solid starting (13) and transfer it from the place behind the knitting needle (18) beards to the place above and in front of knitting needle (18) beard tops, which are afterwards inserted during their upwards movement into the knitted fabric (12), right behind its objective solid starting (13).

Description

Method of closing spokes in a knitting machine

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a method for closing spokes in a knitting machine utilizing a fixed knitted fabric conveying manufactured, for example, in a reciprocating manner on needles mounted on one side of a needle cylinder, to a transfer device that engages it and transports it in front of the hooks of the needles mounted on the opposite side of the needle cylinder tips of sock or hosiery directly in the knitting machine.

BACKGROUND OF THE INVENTION

Sock and hosiery are produced on small diameter knitting machines as tubular knit, possibly with a reversible knit heel and toe. The tip of such a blank remains open and must be closed by sewing on specially designed sewing machines. Designers of knitting machines have been trying for several decades to solve the knitting machine so that the sock is closed directly in the knitting machine and does not have to be transported to the sewing workshop and sewn by hand on the sewing machines.

The main problem of closing the tip directly in the machine is to find a simple and reliable way to transfer the increasing start of the return knit made on the needle arch of one half of the needle cylinder to the opposite needle arch of the other half of the needle cylinder. It is known to carry out such transfer by means of a split tip plate and a special instrument tipping sinker. For example, according to CZ PVI997-197. The disadvantage of this device is the extraordinary demands on accuracy and the need to place in a very small space inside the needle cylinder, very many components of a complex device. Therefore, it is very expensive, slow and unreliable.

It is also known to employ a device which solves this problem by means of special grabs, also housed in a complex device which is inserted from below into the needle cylinder, to its apex, where these grabs operated by rods under the needle cylinder must be in the first planar half of the needle cylinder. It must be able to move the free edge of the knitted fabric back up and must move it across the second floor space of the needle cylinder up to the needles of the opposite needle arch than on which it was manufactured so that these needles stuck just beyond the free edge.

This method is also very demanding because its transfer grabs are controlled by a very complex and thus expensive, slow and unreliable device.

A method is also known, for example, according to CZ PV2001-935, using a deflection device disposed inside the needle cylinder with a separate movement and provided with a profile, a plate and other means for forming a knitted pocket and connecting it to another knitted fabric and forming an arrow. This solution is also complex, expensive, slow and unreliable.

It is also known to employ known devices which, in the vicinity of the arch needles, are able to grasp the rigid edge of the top knit and transfer it to its needles. However, the problem still remains how to simply and reliably transport the rigid edge from the point of knitting to the opposite needle arc where it has to be caught by the transfer device and transferred to its needles.

There is a known method that solves this problem by knitting a fixed edge on an arc of needles of about 240 °, whereby the fixed edge, in its natural position and also due to its resilience, is arranged within the needle cylinder closer to the needles of the needle where it operates devices that put him that way

It can be easily caught and then transferred to the appropriate needles. All solutions using attachments, whether inside or outside the needle cylinder, complicate the knitting movement during knitting and the movement of the finished fabric in the machine.

Another way of solving this problem is by air flow or by means of a mechanical feeder. A common disadvantage of these methods of conveying the rigid edge of the knitted fabric within the needle cylinder is that they are too technically demanding and therefore of little reliability.

SUMMARY OF THE INVENTION

The method of closing the spokes in a knitting machine using the method of conveying the rigid edge of the top knitted fabric within the needle cylinder of the invention is very simple and reliable in that the rigid edge of the needle cylinder, in the direction away from the needle arch on which it was knitted which must be transferred, pulls one or more yarns entangled therein and pulled through the space inside the needle cylinder to the yarn guides located in the space outside the needle pitch circle and further pulled into the tension control devices.

BRIEF DESCRIPTION OF THE DRAWINGS

The knitting of the toe closure directly in the knitting machine is explained in the following, with the help of twelve figures.

Fig. 1 shows schematically the needle pitch circle 10, the yarn guide of knitting systems 1, 2, 3, 4, 5, 6 and the opening 11, in the axis of the needle cylinder (not shown), for conveying the article. The first needle arch P18, the knitting needles 18, the opposite second needle arch R18, the knitting needles 18, the location of the tightening needles 1c, 2c, 3c, 4c, 5c, in the opposite second needle arch R18, the knitting needles 18 and the needle groups J1b, 2b. 3b, 4b, 5b in the first needle arc P18 of the knitting needles 18.

FIG. 2 shows schematically the dragging yarns Ja, 2a, 3a, 4a, 5a, their entanglement at the fixed beginning 13 and their guidance into the yarn guides of systems 1, 2, 3, 4, 5. Further, the laying of the knitting yarn 6a is shown. X - Y return knitting in system 6.

Referring to FIG. 3 schematically, return knitting, X-Y, increment of the fabric and its arrangement, together with the pulling yarns 1a, 2a, 3a, 4a, 5a, inside the needle pitch circle 10.

FIG. 4 shows the knitted knitwear 12 of the return tip and the co-operation of the draw yarns 2a, 3a, 4a with the tightening needles 2c, 3c, 4c and the brakes 2d, 3d, 4d. Further, the draw yarns 5a, 4a, 3a, 2a, 1a are shown. .

Referring to FIG. 5, the return tip knit 12 is already pulled to the tightening needles 2c, 3c, 4c, 5c, shortly before the tightening needle le catches the pulling yarn 1a and tightens the last portion of the edge of the fabric to its tightening needle 11c.

FIG. 6 shows the knitting-back 12 of the return tip completely extended to the tightening needles 11,

2c, 3c, 4c, 5c, just prior to the moment when the pulling yarn 1a will be entangled and cut.

FIG. 7 shows the knitting needle 12 of the return tip, after it has been pulled to the tightening needles by needles 1c, 2c, 3c, 4c, 5c, its hanging on the knitting needles 18, the first needle arch P18,

-2000 300500 B6 and the plan view of the transfer sinkers 14 and their adjacent retractable sinkers 15.

Referring to FIG. 8, the knitting needle 12 is stitched on the tips 16 of the transfer sinkers 14, carried in front of the hooks of the knitting needles 18 and already threaded on the knitting needles 18.

Fig. 9 shows the knitting needle 12 of the return needle made on the needles of the first needle arch P18, transferred to its opposite knitting needles 18, the opposite second needle arch 18, and released by the tines 16 just before the tubular knitting of other sock parts begins. .

FIG. 10 shows the arrangement of the respective knitting needle 18, retractable sinker 15, transfer sinker 14, with spike 16, and the transfer sinker 14, consisting of a button 19, a guide 20 thereof, a pivot 21 in the off position Z, pin 22 and its placement on the rack 23. All this when the knitting tip of the return tip is pulled to the tightening needles 1c, 2c, 3c, 4c, 5c by the knitting needles 18 and just before the edge of the knit is stabbed to the tip,

FIG. 11 shows the stitching of the edge of the knitted fabric 12 on the tip 16 and the arrangement of the lifting device and its swing lock 21 in the working position S.

FIG. 12 shows the transfer of the edge of the knitted fabric 12, using the tip 16, of the transfer sinker 14, in front of the knitting needles 18 and threading the edge of the article onto the rising knitting needles 18.

DETAILED DESCRIPTION OF THE INVENTION

A method of closing spokes in a knitting machine, in particular for manufacturing sock goods knitted from toe to hem, the task of which is to transport a fixed start 13 of knitting 12 produced on needles of first needle arch P18 of one needle cylinder in front of the needle hooks opposite the second needle arch R1. on the other side of the needle cylinder in the first exemplary embodiment, the method of pulling the fixed start 13 of the knitted fabric 12, from the first needle arc P18 to the opposite second needle arc R18, where the transfer sinkers 14 operate and the empty, rising needles of the opposite second needle arch R18 so as to thread them into the corresponding needle or platinum stitches of the first rows of knitting 12 in the wake, thereby closing the toe of the sock during subsequent knitting by first returning the pl by intertwining XY on the first needle arc Pl8, knit a fixed start 13, then the yarn guides of systems 1, 2 * 4, 5 introduce the beginnings of the yarns yarn 2a, 2a, 3a, 4a, 5a into the groups of needles 1b, 2b, 3b, 4b, 5b. which is entangled in the fixed beginning 13, further proceeding with return knitting XY in the manufacture of knitted fabric 12, wherein the draw yarns 1a, 2a, 3a, 4a, 5a have their starts entangled in the fixed start 13 and are further drawn over the mouth of the opening 11, to its yarn guide of knitting systems 1, 2, 3, 4, 5 and further to brakes Id, 2d, 3d, 4d, 5d, followed by return knitting to produce knitwear 12, and once knitted, the return knitting XY is terminated so that the needle arcs start to move only in the X-direction, by sliding the tightening needles 1c, 2c, 3c, 4c, 5c into a position so that the tightening needle 1c catches the pulling yarn 1a, the tightening needle 2c catches the pulling yarn 2a, přetaho the yarn 3a, the tightening needle 4c has caught the yarn 4a and the tightening needle 5c has caught the yarn 5a, whereupon the yarn yaws 1a, 2a, 3a, 4a, 5a are braked by brakes 1d, 2d, 3d, 4d, 5d and due to the round movement of the tightening needles in the X direction, the lengths of the portions of the tensile yarns bounded on one side by the brakes Id, 2d, 3d, 4d, 5d and on the other by the tightening needles Jc, 2c, 3c, 4c, 5c begin to lengthen 4a, 5a of the yarns bounded at one end by the fixed start 13 and at the other end by the brakes Id, 2d, 3d, 4d, 5d are still the same length, the lengths of the yarns start in the space between their entanglements at the fixed start and by tightening the tightening and needles on the other hand, shorten until a solid start 12

300500 B6 will move closely to the tightening needles Id, 2d, 3d, 4d, 5d that are part of the opposite second needle arch R118.

A method for closing spokes in a knitting machine, in particular for producing sock goods knitted from toe to hem, the purpose of which is to transport a fixed start 11 of knitting 12 made on needles of first needle arch P18 of one needle cylinder in front of the needle hooks opposite the second needle arch R1J. on the other side of the needle cylinder in the second exemplary embodiment is that the number of pulling yarns Ja, 2a, 3a, 4a, 5a is only i.

A method for closing spokes in a knitting machine, in particular for producing sock goods knitted from the tip to the hem, the purpose of which is to transport a fixed start 13 of the knitted fabric 12 produced on the needles of the first needle arch P8 on one side of the needle cylinder. disposed on the other side of the needle cylinder in the third exemplary embodiment is that in the fixed beginning 13 one or more of the yarns 1, 2, 3a, 4a, 5a are retained, the highest number of which is given by the number of knitting systems 1, 2, 3, 4, 5, which, in cooperation with the tension guiding and tension control device 1a, 2a, 3a, 4a, 5a, provide transport of this fixed beginning 13 from the knitting needles 11 on which it was made to the knitting needles 18 opposite the circumference of the second sides of the needle cylinder up to the scope of special transfer pl 14 in the grooves of the sinker ring, next to the retractable sinkers 15 where the transfer sinkers 14 engage the fixed beginning 13 and drag it from the point behind the hooks of the needles to the point above and in front of the tops of the hooks of the knitting needles. 12 just beyond its fixed start 13. Under the transfer sink 14, in the body fixedly connected to the needle cylinder or the platinum ring, the push button JJ is mounted axially slidably and which, in cooperation with the pendulum lock

The transfer sinker 14 has a ramp which cooperates with a pendulum lock 21 housed in the platinum ring cover, which returns the transfer sinker M from its upper working position S to the lower non-working position Z. At the moment when the piercing tip 16 is stitched into the knitted fabric 12 beyond its fixed beginning 13 is held against raising the hook of the retractable sinkers 11. The hook of the retractable sinker 15 together with the tip of the transfer sinker 14 provides a firm start 11 against unwanted lifting when the knitting needles 14 are stitched into the knitwear 11 behind the fixed start 13. First, the odd knitting needles JJ and then the even knitting needles JJ, or vice versa, or the even or only odd knitting needles JJ, are punctured into the knitted fabric 12 by the fixed start JJ.

Closing the spokes directly in the machine in the exemplary embodiment is designed for the production of socks from the tip to the hem and we will explain it advantageously using six system knitting machine, because in reversible knitting on one system, we still have five, to work with dragging increasing knit to opposite needles, by means of pulling yarns. Knitting is started in a known manner by knitting a firm start on the empty knitting needles 11, preferably by means of an elastic yarn inserted into the hook of each second knitting needle 18 and then inserting the knitting yarn into all the knitting needles 18. In our case, however, we first introduce, by means of the knitting systems 1, 2, 3, 4, 5, the draw-in yarn 1a, 2a, 3a, 4a, 5a, into the groups of needles 1b, 2b, 3b, 4b, 5b. The entanglement is performed as shown in Fig. 2 so that the regularly distributed and entangled draw yarns 1a, 2a, 3a, 4a, 5a are freely stretched from their engagement into the respective conductor mouths, knitting systems 1, 2, 3, 4, 5 Once the drag yarns 1a, 2a, 3a, 4a, 5a are entangled, a return knitting is started to form the toe of the future sock. Throughout the reversible knitting, the drag yarns 1a, 2a, 3a, 4a, 5a remain freely stretched from the fixed beginning of the increasing knitting 12 to the conductor mouths of the respective knitting systems 1, 2, 3, 4, 5, as shown in FIG. 3. After returning knitting in system 6, its knitting yarn is braided and cut. Thereafter, they gradually begin to lift into the catching position of the tightening needles 1c, 2c, 3c, 4c, 5c, which engage the pulling yarns 1a, 2a, 3a, 4a, 5a braked by the brakes 1d, 2d, 3d, 4d, 5d and flexed not shown skipping rope. Tugging yarns 1a, 2a, 3a, 4a, 5a due to entrapment

300500 B6 with the tightening needles 1c, 2c, 3c, 4c, 5c, as a result of the rotating needle cylinder, they begin to stretch and thereby drag the fixed start 13, the just knitted fabric 12, close to the tightening needles Lc, 2c, 3c, 4c, 5c, 4 and 5. As can be seen in FIG. 6, the knitting-back 12 of the return tip is completely pulled over to its tightening needles 1c, 2c, 3c, 4c, 5c and the pulling yarn 2a, 3a,

4a, 5a are already entangled and sheared while remaining to be entangled and cut off the pulling yarn Ja and the first closing phase is thereby completed. At this point, the knitted fabric 12, partially closed toe, is held on one side by an arc of needles P18 and on the other hand is pulled tightly to the tightening needles Jc, 2c, 3c, 4c, 5c. Its edges thus form a half-circle on one side and a half of a rectangle on the other side and its sides 24, 25, 26, 27, 28, 29 are stretched, up to the tips 16 of the special transfer sinkers 14 and drawn into the hooks of the retractable sinker. Thus, the knitted fabric 12 arranged on the needles as shown in Fig. 7, lifts the lock 21, in its working position 5, by means of the buttons 19, the transfer sinker 14 and their tips 16 are stabbed into the knitted fabric 12, just beyond its solid. the beginning formed by the sides 24, 25, 26, 27, 28, 29. Once the transfer sinkers 14 catch the edges of the knitted fabric with their spikes, they move outward from the needle cylinder and drag the edges of the knitted fabric 12 over the hooks of the knitting needles 18 as shown 8 and 12. Subsequently, the knitting needles 18 are lifted and stabbed just beyond the edge of the fixed beginning of the knit 12. The tips 16 of the transfer sinker 14, run into the sinker groove, and release. The knitting 12 remains hinged around the perimeter on the knitting needles 18 as shown in FIG. 9. At this point, the closing of the toe is completed and tubular knitting of other parts of the sock can be initiated.

Industrial applicability

This method of closing the spokes in a knitting machine can be used wherever it is necessary to knit a closed tubular knit at one end.

Claims (5)

CLAIMS 1. A method of closing a spike in a knitting machine using a method of pulling a fixed beginning 35 (13) of knitted fabric (12), from the first needle arc (P18) to the opposite second needle arc (R18), where the transfer sinkers (14) operate, which catch the fixed beginning (13) and transfer it in front of the still empty, rising needles the opposite second needle arch (R18) so as to thread into the corresponding needle or platinum stitches of the first rows of knitting (12) in the wrist, thereby closing the sock toe during subsequent knitting, characterized in that 40 first knit the fixed start (13) with the return knitting (X-Y) on the first needle arc (P18), then knit the yarn guides of the knitting systems (1, 2, 3, 4, 5), introduce into the groups of needles (1b, 2b, 3b, 4b, 5b) the beginnings of at least one or more tensile yarns (1a, 2a, 3a, 4a, 5a) which are entangled in a fixed start (13) , followed by reversible knitting (XY) in the manufacture of the knitted fabric (12), wherein the draw yarns (1a, 2a, 3a, 4a, 5a) have their beginnings entangled in the fixed beginning (13) 45 and further drawn through the mouth of the opening (11), each into its yarn guide of knitting systems (1, 2, 3, 4, 5) and further into the brakes (1d, 2d, 3d, 4d, 5d), followed by a return knitting (XY) in the manufacture of knitted fabric (12), and once knitted, the return knitting (XY) is terminated so that the needle arcs only move in the (X) direction while the tightening needles (1c, 2c, 3c, 4c, 5c) to the position that the tightening needle (1c) engages the pulling yarn (1a), the tightening needle (2c) retains the pulling yarn (2a), the tightening needle (3c) receives the pulling yarn (3a), the tightening needle (4c) captured the yarn (4a) and the tightening needle (5c) caught the yarn (5a), whereupon the yarn (1a, 2a, 3a, 4a, 5a) was braked by the brakes (1d, 2d, 3d, 4d, 5d) and rounded moving the tightening needles in the (X) direction with the lengths of the parts of the pulling yarns (1a, 2a, 3a, 4a, 5a) 300500 B6 bounded on one side by the brakes (ld, 2d, 3d, 4d, 5d) and on the other side by the tightening needles (lc, 2c, 3c, 4c, 5c) will begin to lengthen and because the total length of the yarns (1a, 2a, 3a, 4a, 5a) is bounded at one end by the entanglement at the fixed beginning (13) and at the other end by the gripping of the brakes (1d, 2d, 3d, 4d, 5d) is still of the same length, 5 (1a, 2a, 3a, 4a, 5a) in the space between their entanglement at the fixed start (13) on the one hand and the engagement by the tightening needles (1c, 2c, 3c, 4c, 5c) on the other until the fixed start (13) moves closely to the tightening needles (1c, 2c, 3c, 4c, 5c) which are part of the opposite second needle arch (R118).