CZ300566B6 - Device for feeding threads to needles - Google Patents

Abstract

In the present invention, there is disclosed a device for feeding threads to needles of a circular knitting machine for producing hosiery and the like with pile loops, comprising thread guides (4 - 10) for feeding patterning threads driven over noses of pile sinkers. When knitting especially pattern weave with pile loops a guide (12) for feeding binding thread is pivotally mounted on a pin (11). The thread guides are arranged in swingable manner in stations of the individual knitting systems into both working and idle positions relative to the needles (1). The thread guide (12) is coupled by means of a swinging segment (17) and a tension spring (13) with an auxiliary lever (14) that is swingably mounted on a pin (3) where the remaining thread guides (4 - 10) are arranged. Said swinging element (17) having the form of a stick mounted in holes performed in both the auxiliary lever (14) and adjoining arm of the thread guide (12), and the tension spring (13) both ends are clinched in holes performed also in both the auxiliary lever (14) and adjoining arm of the thread guide (12).

Description

Device for threading needles

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a device for laying yarns in needles of a circular knitting machine for the manufacture of sock goods or the like with plush loops, comprising thread guides arranged pivotably in the stitches of the individual knitting systems into working and non-working positions with

BACKGROUND OF THE INVENTION

It is known that in knitting sock goods with plush loops, which also produce cut-out color patterns, in addition to the yarns for forming these loops, the basic binding thread, in particular nylon, is placed in the needles in the knitting system. This binder thread must be placed under the plush sinker noses through which the plush loops are pulled into the open tongues of the needles. The other threads are placed in the hooks of the needles. In order for the threads to be completely inserted into the needles, it is necessary that the orifice of the threading holes of the thread guides be exactly in the working positions. The machines are equipped with thread guides, modified as well as double-reversible levers operated by pneumatic cylinders and springs for working or non-working positions. The thread conductor for laying the binding thread, however, when it is lowered into the laying threads respectively. The working position intersects the path of the hooks of the needles moving at the closing height with its front end. This causes the hooks to break off, at best, just to stop the machine.

SUMMARY OF THE INVENTION It is an object of the invention to overcome this disadvantage.

SUMMARY OF THE INVENTION

The device according to the invention is characterized in that the yarn guide for laying the binder yarn in knitting with a plush loop has a pivot axis closer to the cylindrical surface of the needle cylinder and at the same time lower than the pivot axis of the other yarn guides.

Furthermore, it is preferred that the yarn guide for laying the binder yarn when knitting the plush loop binding is mounted on the pin in the cube of the station and coupled to an auxiliary lever pivoted on the pin where the remaining yarn guides are stored.

Furthermore, it is also advantageous if the yarn guide arm for laying the binder yarn when knitting the plush loop binding is coupled to the auxiliary lever by means of a pivot element interposed therebetween and the tension springs attached thereto.

Overview of the drawings

The device according to the invention is shown in the accompanying drawing, where FIG. 1 is a side view of a station with a representation of a wire for laying the binding thread, FIG. 2 is a top view of a station with a thread guide.

DETAILED DESCRIPTION OF THE INVENTION

The known single-cylinder circular knitting machine for the production of socks or the like is provided with knitting systems in which the stitches for arranging the thread guides laying the threads in the needles 1 are arranged. Each thread guide station consists of the following parts.

- 1 GB 300566 B6

It is a cube 2 fixedly mounted on a known, not shown upper flange of the machine. In the cube 2, thread guides 4 - 10 (FIG. 2) are pivotably mounted on the pivot pin 3 for laying pattern threads drawn over the plush sinker noses. Furthermore, a pivotable guide 12 for laying the binding thread during knitting, in particular the patterned binding with plush loops, is mounted on the pin 11. The pin 11 is arranged lower than the pin 3 in the cube 2 and closer to the cylindrical surface of the needle cylinder, so that the thread guide 12 for binding the yarn when knitting with plush loops has a pivot axis the other thread guides 4 - 10 arranged along with it in the station of the knitting system.

The yarn guide 12 has a long working arm such that its end for laying the binding yarn moves along the radius R2 outside the reach of the hooks of the needles J as the working range deviates from the lowered and inoperative elevated position, as shown in FIG. The ends of the remaining thread guides 4-10 move along radii R1 and their path ends above the hooks of the needles L Or they may be adjusted so that they lay further away from the needle cylinder and their path does not cross the hook path.

The yarn guide 12 is coupled by a pivot element 17 and a tension spring 11 to an auxiliary lever 14 which is pivoted on the pin 3 where the remaining yarn guides 4-10 are received. The rod-shaped pivot element 17 is received in the wells formed in both the auxiliary lever 14 and the adjacent thread guide arm 12 and the tension spring 11 is snapped at both ends into the holes formed in both the auxiliary lever 14 and the adjacent thread guide arm 12. the element 17 is actually deflected between said elements.

At the end of the second arm of the auxiliary lever 14 is associated a pneumatic piston 15 arranged in a cube 2 and controlled from the control electronic device of the machine. The arm of the auxiliary lever 14 abuts the resilient pin 16 mounted in the cube 2.

The operation of the device described above is as follows. When the yarn guide 12 is in the inoperative raised position, as shown in FIG. 1, with a thin line, it is lifted here by the spring 16 acting on the auxiliary lever 14 and by the tension spring 13 holding the yarn guide 12. Compressed air is not introduced into the pneumatic piston 15.

When compressed air is introduced into the pneumatic piston 15, it raises the respective arm of the auxiliary lever 14 so that the opposite arm of the lever 14 drops and the pivot element 17 lowers the yarn guide 12 by pivoting about the U-pin. The other thread guides 4 - 10 for patterning threads oscillate around the pin 1 along radii R2 above the needle hook paths 1.

The main advantage of the invention is that the original structure of the yarn guide station, including the control, is retained, and the tie thread guide can function without problems.

Claims (3)

PATENT CLAIMS Device for placing yarns in needles (1) of circular knitting machines for the production of socks or the like with plush loops, comprising thread guides (4- 10) arranged pivotable in stations of individual knitting systems into working and non-working positions with respect to needles (1) ), characterized in that the yarn guide (12) for laying the binder yarn when knitting with the plush loops has a pivot axis closer to the cylindrical surface of the needle cylinder and at the same time lower than the pivot axes of the other yarn guides (4-10) arranged therewith. in the station of the knitting system. -2 CZ 300566 B6 Device according to claim 1, characterized in that the thread guide (12) for laying the binding thread in knitting the plush loop binding is mounted on a pin (11) in the cube (2) of the station and it is coupled with an auxiliary lever (14) mounted pivotably on the pin (3), where the remaining thread guides (4-10) are accommodated. Device according to claims 1 and 2, characterized in that the leg of the thread guide (12) for laying the binding thread in knitting the plush loop is coupled to the auxiliary lever by the arm (14) by means of a rocking element ( 17) clamped between them and tension springs (13) attached thereto.