SK278038B6 - Leading body of independent fibers - Google Patents

Abstract

Leading body (1) of independent fibers, which is located between independent making mechanism and comber roller and opened side of spinning rotor containing the taking off wall (2) on which fastens the leading canal (4) of taken off fibers which inlet opening is in direction of feeder of independent fibers ended with separating edge (3). The leading body (1) contains the insert (5) created from different material than its other part, at which the insert (5) contains at least one part of taking of wall (2) at least one part of leading canal (4) and the separating edge (3). The insert (5) can be made from stainless metal alloy, from ceramic, glass, from solid plastic composite or as molded steel pressing.

Description

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a discrete fiber guide positioned between a disengaging roller disengaging mechanism and an open side of a spinning rotor comprising a sensing wall followed by a scanned discrete fiber guide channel with an outlet opening in the discharging direction of the discrete fibers.

BACKGROUND OF THE INVENTION

The known guide bodies of the detaching and guiding mechanism of the separate fibers, in particular from the combing roller of the unit of the open-end spinning machine, are formed as a body positioned between the separating mechanism with the combing roller and the open side of the spinning rotor on which the sensing wall with the separating edge is formed; a wall adjoining the guide channel of the sensed or separated fibers, or formed as a body wrapping up to the zone of the fiber feed mechanism of the combing roller, provided on the sensing wall with a separating edge with an inlet orifice formed therein.

Such guiding bodies of the detaching and guiding mechanism of the separate fibers are produced by the die-casting method of zinc alloy because, in view of the desired function of the guiding body, it is necessary for the material from which the bodies are made to flow perfectly to form a precise and sufficiently smooth surface. , in particular in that part of the body that includes the guide channel of the sensed discrete fibers. Presently, said requirements are fulfilled by die casting a zinc alloy into a steel mold equipped with a tractor for forming an oblique passage guide channel.

When operating the unit of an open-end spinning machine, i. in detaching the fibers from the incoming fiber strand by the detachment mechanism and detecting and discharging them into the guide channel, the detached and drawn surface of the combing roller exerts considerable strain on the abrasion of the upper side of the guide channel at its inlet.

The low abrasion resistance of the used zinc alloy is currently solved by reinforcing the separating edge of the sensing wall with a steel pin. However, this solution is labor-intensive and operationally unreliable because, despite several years of technology effort, it has not been possible to create a manufacturing process that guarantees a flawless connection of the pin to the edge of the sensing wall without any gap. by entering the guide channel. By collecting fibers with diameters in one hundredths of a millimeter, clusters of fibers are formed, which over time tear off and, upon entering the spinning rotor, cause the yarn to break or at least deteriorate.

A number of solutions have been developed to reduce the unfavorable effect of separate fibers on the separating edge and the sensing wall by special treatment of these edges and walls, as shown, for example, in CS 274306, where the sensing wall is formed on the cylindrical peripheral wall of the cylindrical cavity. its circumferential direction at least partially lateral from its guide channel separating edge and its lower edge adjoining the circumferential cylindrical wall extending in an arc from the second front wall of the cylindrical cavity at least or beyond the parallel level of the separating edge, the planar guiding sensing wall being separated from the plane a circumferential cylindrical wall in the direction of the guiding sensing wall and / or the top wall of the guiding channel in order to extend the sensing inlet and guide the fibers into the guiding channel from the second half of the combing roller width.

The detached discrete fibers in the second half of the combing roller width should thus have more space and time to release them from the combing roller coating and to guide them non-violently into the guide channel and to the separation edge. There is no intense blasting of the deflecting sensing wall by separate fibers in which the guide channel and the sensing zone are formed.

Despite the above mentioned measure, due to the ever increasing working power of the units of the open-end spinning machines and the increasing flow of fiber material through the guiding channel per time unit, the wear of the separating edge of the sensing wall also increases. This results in an operationally unbearable reduction in the service life of the separating edge and thus of the entire removable body of the detaching and guiding mechanism of the separate fibers. The increase in the spinning rotor speed is accompanied by a reduction in the cross-section of the guide channel, a reduction in the dimensions of the die casting mold of this interchangeable body of the fiber removal mechanism. As a result, heat dissipation during casting and, as a result, deterioration of the surface quality of the guide channel walls through which the separate fibers pass. This in turn leads to a deterioration in the quality of the yarn produced.

According to the invention, there is provided a separate fiber guide body which avoids technological problems during manufacture and which is highly resistant to abrasion by the separated fibers in the exposed areas and at the same time cheaper to manufacture. At the same time, the question of eliminating an unsuitable compromise between the textile-technological requirements for the mechanism function and the possibility of producing the guide body by prior technologies is being pursued.

SUMMARY OF THE INVENTION

The object is achieved by a separate fiber guide body comprising an insert formed of a different material than the other part of the guide body, wherein at least a portion of the detached fiber detecting wall, at least a portion of the guiding channel of the sensed unitized wavelengths and the separating edge are formed in the insert. .

The lined fiber guide body insert may be made of stainless steel alloy, ceramic, glass, reinforced plastic composite, or as molded steel.

The other part of the guide body may be made of ceramic or thin-walled, for example bakelite.

The effects of the solution are manifested in increasing the lifetime of the exposed part of the guide body of the separated fibers, while the technological process of the production of the body is not dependent on the condition of the production workers, decreases production costs, eliminates complaints complaining to customers. mode2

SK 278038 156 makes it possible to substantially increase the shape variability of the insert or the whole body and allows to achieve smaller dimensions of the guide channel without deteriorating the surface quality of its walls.

BRIEF DESCRIPTION OF THE DRAWINGS

Further advantages and effects of the solution according to the invention result from the following description of an exemplary embodiment of a body for detecting and guiding separate fibers and from the attached drawing, where it is shown in FIG. 1 is an oblique view of a discrete fiber guide body, wherein its exposed portion including at least a portion of the sensing wall with a separating edge and a portion of the discrete fiber guide channel is formed as an insert of a different material from the other body parts; 3 is a cross-sectional view of the insert with the insert inserted.

DETAILED DESCRIPTION OF THE INVENTION

The single fiber guide body 1 fed from the disengagement roller of the disengagement mechanism of the spinning unit of the open-end spinning machine is located between the disassembly roller with the disengagement roller and the open side of the spinning rotor (not shown). The guide body 1 comprises a sensing wall 2, which is connected to a guide channel 4 of sensed discrete fibers and whose inlet is terminated by a separating edge 3 in the direction of discharging the discrete fibers or the guide body 1 is designed as a not shown body. provided on said sensing wall with a separating edge through an inlet orifice formed therein by a separate fiber channel and the like.

A portion of the guide body 1 comprising at least a portion of the detached fiber detecting wall 2, a portion of the detached detached fiber guiding channel 4 and a separating edge 3 is formed as an insert 5 of a different material than the other part of the guide body 1 of the mechanism.

The lining 5 of the separate fiber guide body 1 of a different material is abrasion-resistant, while the other part of the guide body 1 is formed of a form-stable material, for example of a stainless steel alloy by a fusible core method.

The liner 5 of the discrete fiber guide body 1 in various modifications can be made of ceramic, glass, reinforced plastic composite or as a molded part of steel and the like.

The lining 5 of the lone fiber guide body 1 is fixed, for example, by spraying in the other part of the guide body 1, the remaining part of the guide body 1 serving to fasten the insert 5 and made of thermosetting, for example bakelite or ceramics and the like.

Claims (8)

PATENT CLAIMS An independent fiber guide body positioned between an independent tumbler roller and an open side of a spinning rotor, comprising a sensing wall adjoined by a guided channel of sensed detached fibers, the inlet opening of which is terminated by a separating edge in the feeding direction of the detached fibers. comprising an insert (5) formed of a different material than the other part of the guide body (1), the insert (5) comprising at least a portion of the detached fiber sensing wall (2), at least a portion of the guided channel (4) (3). The lone fiber guide body according to claim 1, characterized in that the lining (2) of the lone fiber guide body (1) is made of a stainless steel alloy. The lone fiber guide body according to claim 1, characterized in that the lining (2) of the lone fiber guide body (1) is made of ceramic. The lone fiber guide body according to claim 1, characterized in that the insert (2) of the lone fiber guide body (1) is made of glass. The discrete fiber guide according to claim 1, characterized in that the insert (2) of the discrete fiber guide body (1) is made of a reinforced plastic composite. The lone fiber guide body according to claim 1, characterized in that the lining (2) of the lone fiber guide body (1) is made as a shaped molding of steel. The lone fiber guide body according to claim 1, characterized in that the other part of the lone fiber guide body (1) is made of ceramic. The lone fiber guide body according to claim 1, characterized in that the other part of the lone fiber guide body (1) is made of a thermoset, for example bakelite