CS239577B1 - Floating guide for the production of core yarns - Google Patents

Abstract

The solution falls into the field of construction of devices for the production of core yarn and solves the floating guide device for the production of core yarns. The floating guide device for the production of core yarns, located in front of the output pair of rollers of the drawing mechanism, optionally with a cutout for hanging on a bar or rod, consisting of a basic body, in the longitudinal axis of which a guide slot is located. The essence of the floating guide device is that the arms of the guide slot are terminated with contact surfaces that correspond to the shapes of the adjacent rollers, while the guide slot is provided with an insert made of corundum or other material, forming a yarn guide. The device according to the invention can be used on ring spinning machines and other spinning machines.

Description

(54) Floating guide device for the production of core yarns

The solution falls within the field of construction of nuclear yarn manufacturing equipment and solves a floating guiding yarn manufacturing equipment.

A floating core yarn guiding device disposed in front of the exit pair of the pulling mechanism rollers, optionally with a notch for hanging on a bar or rod consisting of a base body in which a guide slot is disposed along the longitudinal axis. The essence of the floating guide device is that the arms of the guide slot are terminated by abutment surfaces which correspond to the shapes of straight rollers, the guide slot being provided with an insert of corundum or other material forming the yarn guide.

The device according to the invention can be used on ring spinning machines and other spinning machines.

The invention relates to a floating guide device for producing core yarns.

The devices used to guide the core to the center of the yarn core yarn used so far are based on the principle of a predetermined position of the supplied core and the package by firmly attached guiding elements in the area of the draw gear of the ring spinning machine. A device is used in which the wrap of the last pressure roller is changed by adjusting the porcelain double-deck and the wires used are fixedly fixed on the pressure arm.

Furthermore, a device is used in which the winding device comprises a ceramic bracket and the synthetic silk enters under the outlet roller through a guide loop. In another solution, the synthetic silk is guided through a guide rod and a winding device to a feeding loop, which is located close to the upper pressure roller and the guide eyelets are located at the edges of the adjustable hanger.

In the Czechoslovakian author's certificate number 231 060 there is described a device for the production of nuclear yarn on a ring spinning machine, where an adjustable beam is adjustable on the shank in the extension field of the spinning machine, carrying support arms carrying the yarn guide and guide roller for guiding synthetic silk. . In this solution, the synthetic silk is guided in the groove of the guide pulley to the outlet pressure roller, on the periphery of which the fiber strand enters the center of the strand of fibers to form the core yarn by gripping the output pair of pulling rollers. The disadvantage of these devices is the fact that in the stationary construction of the individual guiding elements for guiding the synthetic silk, the entry of the synthetic silk into the center of the filament ribbon is not permanently ensured and we unevenly cover the synthetic filament with staple fibers. A disadvantage is also the necessity to switch off the transverse displacement of the delivered package due to the aforementioned centering of the core and package guiding elements, and thus the increased wear of the pressure rollers of the stretching device of the ring spinning machine.

The above drawbacks are eliminated in the floating core yarn guiding device according to the invention, placed in front of the exit pair of the pulling mechanism rollers, optionally with a notch for hanging on a bar or rod consisting of a base body in which a guiding slot is located. is an; The guide slot is terminated by abutment surfaces corresponding in shape to adjacent rollers, the guide slot being provided with an insert of corundum or other material forming the yarn guide.

The advantage of the floating guide device according to the invention is that, in use, the position of the wrapper and the core is not predetermined by the fixed guide elements, but during spinning the position of the supplied wrapper determines the position of the floating guide device and the core guide from corundum guides the core to the center. . The centering of the core and shell guides is not carried out before the machine is turned off, but during the entire operation of the machine. The advantage is that the centering is not tuned out during operation and the need to turn off the transverse displacement of the package is eliminated.

A floating guiding device for producing core yarns according to the invention is shown in the accompanying drawing, wherein FIG. 1 is a front view of a floating guide device with a cut-out for hanging; FIG. 2 shows a floating guide device as seen from the side. Fig. 3 illustrates the placement of a floating guide device in front of the exit pair of rollers in the stretch field.

In FIG. 1 shows a floating guide device according to the invention, consisting of a body 1 with a cutout 6 for hanging on a bar 7 and with abutment surfaces 2, 3, in the axis of which the guide slot 4 is for guiding the drawn strand of yarn. In the continuation of the guide slot 4, the conductor 5 is made of corundum or other guide material.

In FIG. 2 is a floating guiding device when viewed from the side.

In FIG. 3 shows the placement of a floating guide device in the stretch field in front of the exit pair of rollers, wherein the core 8 is guided by a guide 5 to the center of the drawn strand yarn 9 guided by the body slot 1. it can be hung on the bar 7 by a cutout 8.

The device according to the invention is placed in front of the outlet pair of draw-off device rollers on ring spinning machines and other spinning machines, and can be hung by a slot 6 for hanging on a bar or rod 7 so that the axis of the slot 4 is continued. is identical to the axis of the core guide loop. The body 1 of the floating guiding device according to the invention abuts the abutment surfaces 2, 3 on the periphery of the outlet lower cylinder 12. The supplied core shell is guided by the guiding slot 4. Forced or spontaneous transverse displacement of the shell transversely along the roller 12 and, if notch B along the bar 7, in the corresponding direction, the floating guide device and, with it, the core guide eyelet. The centered position of the core and the sheath is thus firmly maintained after leaving the floating device according to the invention by the withdrawing rollers behind which the core yarn is twisted.

The floating guide device according to the invention with or without clamping to the bar or rod can be used on ring and other spinning machines.

Claims (1)

239577 also guides the core of the core. Thus, the centered position of the core and the package is firmly adhered to the discharging rollers, after which the twisting of the core strand takes place after leaving the discharge device of the invention. The floating guide device according to the invention with or without clamping on a bar or rod can be used on ring and other spinning machines. PRED Μ ET Floating guide for yarn yarn manufacturing yarns, for the outlet pairs of the rollers of the pulling mechanism, possibly with a cut-out for a strip or bar, consisting of a base body in which the slot is located in the longitudinal axis, characterized in that BACKGROUND OF THE INVENTION The names of the guide slots (4) are terminated by the set-up surfaces (2, 3) corresponding to the adjacent roller, wherein the guide slot (4) is provided with a crown or other wear-resistant insert forming a conductor (5) yarn 1 sheet of drawings