CN216141673U - Spinning machine traction roller and connector assembly thereof - Google Patents

Abstract

The present invention relates to a spinning machine drawing roller (A) and its connector assembly (10), and the assembly housing contains an opening extending from a proximal end (P) and a distal end (D). The opening can receive at least one bearing (3) for supporting the drawing roller. The connector is detachably connected to the housing and is carried by a support member in the spinning machine that supports the traction roller. The present disclosure relates to a coupling assembly that solves the problem of frequent removal of at least one bearing (3) from a pulling roll (a), thereby avoiding premature failure and greatly extending the useful life of the at least one bearing (3) and the pulling roll (a).

Description

Spinning machine traction roller and connector assembly thereof

Technical Field

The present disclosure relates generally to the field of textile machines, and is applicable to, but not limited to, spinning machines for producing yarns in textile machines. In addition, the disclosed embodiments relate to spinning machine pull rolls and connector assemblies thereof, the function of which is to support the spinning machine pull rolls.

Background

In general, spinning machines can be used to process various types of natural/synthetic fibers. To achieve this, the machine used is a spinning preparation machine (commonly known as "spinning machine"). These machines are made up of a number of parts including drawing frames, carding machines, combing machines, looping machines (including drawing units), etc. The drawing unit consists of a plurality of upper drawing rollers and corresponding lower drawing rollers, and the fiber strand shuttles between the upper drawing rollers and the lower drawing rollers, so that drawing action is generated. The drawing rolls of the spinning machine are used for drawing down the fiber strands passing between the upper and lower drawing rolls, and the linear density of the fibers is reduced by drawing down the fiber strands to improve the properties thereof, for example, by straightening the fibers substantially parallel.

For spinning preparation machines, in particular drawing frames, carding machines, combing machines, loopers and spinning machines, among others, and similar roughnecks, ring frames, air-jet spinning machines, drafting is one of the most important processes. In the carry over pinch rolls system, the carry over pinch rolls is from back to front, and the functioning speed accelerates gradually, simultaneously, in the in-process of weight reduction according to fibre unit length, the fibre strand is elongated, and the fibre redistributes along the line, and whole strand attenuate, in the final fibre strand cross section, the fibre realizes straightening parallel. The traction unit consists of traction rollers and comprises an upper traction roller and a lower traction roller which are parallel to each other. The fiber strand shuttles between the upper traction roller and the lower traction roller to complete the traction action.

In the drawing device, the top roller draws the fiber strand fed into the device by friction while pressing the top roller against the bottom roller. At the same time, rubber rollers made of synthetic material/rubber material are added on the top roller. The rubber roller on the traction unit integrally improves the spinning performance and improves the quality of finished products (such as strands, coarse sand, fine yarns and the like). The rubber roller uniformly applies pressure to the fiber strand, so that the fiber, especially floating fiber, can be better grasped and controlled, and the traction efficiency is improved.

In continuous operation, the performance (such as Shore hardness) of the rubber roller applied to the top roller is deteriorated, and a honeydew (honeydew) layer is formed, so that the rubber roller eccentricity is increased, and the processing capacity of the fiber strand is reduced. After long-term use, the surface of the rubber roller gradually becomes smooth, so that the material slides frequently, and traction failure and traction roller abrasion are increased. Shore hardness is the main property of the rubber roller and has important influence on the traction quality. Therefore, in order to improve the performance of the rubber roller, the rubber roller needs to be periodically ground (particularly according to raw materials and procedures) so as to improve the quality of the fiber strands.

In the existing grinding process of the glue roller on the traction roller, the glue roller is arranged at the grinding center of a grinding machine. In order to improve the running performance after a period of time (depending on the raw materials and the process), the rubber roller must be periodically ground (polished). During grinding, the top roller is placed between grinding centers of the grinding machine to be aligned and axially clamped, but before the top roller is arranged, the bearing assembly with the end sleeve is taken off. In view of the complicated structure of the device, the operation is time-consuming and labor-consuming, and the bearing assembly on the top roller is frequently disassembled and assembled, so that the internal structure of the bearing is disturbed, the bearing is worn too early, and the service life of the bearing and the top roller shaft is influenced.

Accordingly, the present invention is directed to overcoming one or more of the limitations set forth above or other limitations associated with the prior art.

SUMMERY OF THE UTILITY MODEL

The assemblies disclosed herein address one or more of the deficiencies of conventional assemblies and provide additional advantages.

The present disclosure provides other features and advantages of the claimed technology, and other embodiments and aspects of the present disclosure are described in detail herein and are considered as part of the present disclosure.

The non-limiting embodiments disclosed herein relate to a connector assembly for a spinning machine pull roll. The housings of the assemblies include openings extending from proximal and distal ends. The opening may fixedly receive at least one bearing to support the pull roll sleeve. The connector is detachably connected with the shell and receives a supporting member in the spinning machine to support the traction roller.

It is understood that in the disclosed embodiment of the utility model, at least one bearing is contained in the proximal portion of the housing. And the outer ring of at least one bearing is fixed on the inner wall of the shell.

According to the embodiment disclosed by the utility model, the right center of the shell is in a trapezoidal structure.

According to the disclosed embodiment of the utility model, after the connector (6) is removed from the housing, the pulling roll is placed in the grinding center of the grinding machine together with the housing containing at least one bearing.

It is understood by the disclosed embodiments that the connector assembly includes a tensioner disposed at the proximal end of the housing for supporting the traction roller shaft within the housing.

It is understood by the disclosed embodiments that the connector is removably connected to the distal end of the housing. And the connector is connected to the outer diameter of the distal portion of the housing, corresponding to the inner diameter of the distal end of the housing. The portion of the connector that connects the housing distal end and the housing distal end include mating threads to removably couple the connector and the housing.

In accordance with the disclosed embodiment of the utility model, the portion of the connector that is connected to the distal end of the housing is secured to the distal end of the housing by a bayonet slot having a fastener. The fastener prevents axial movement of the connector relative to the housing.

Another non-limiting embodiment of the present invention is a spinning machine pull roll. The traction roller comprises a roller core, bushings are arranged at two ends of the roller core, and a rubber roller is arranged on the roller core. Alternatively, the connector assembly may be disposed at either end of the roll core. The housing of the connector assembly includes an opening extending from the proximal end and the distal end. And the open portion may fixedly receive at least one bearing to support the traction roller shaft. In addition, the connector is detachably connected to the housing in a connecting position to receive a support member in the spinning machine to support the traction roller.

Thus, it is understood that the aspects and embodiments described in the above disclosure can be used in combination with each other, and that the aspects and embodiments, when combined, can form another embodiment in the disclosure.

The foregoing summary is illustrative only and is not intended to be in any way limiting. And in addition to the illustrative aspects, embodiments, and features described above, other aspects, embodiments, and features will be apparent from the description and drawings, and from the detailed description.

Drawings

The novel features believed characteristic of the utility model are set forth in the appended description. The disclosure itself, however, as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying drawings. One or more embodiments are described by way of example only and should be understood in conjunction with the following reference numerals, which are intended to indicate features in the figures and which are particularly pointed out below:

FIG. 1 shows a cross-sectional view of a spinning machine equipped with a pull roll of a connector assembly, according to a disclosed embodiment of the utility model.

Figures 2 and 3 show enlarged cross-sectional views of a pulling roll equipped with a connector assembly, in accordance with a disclosed embodiment of the utility model.

Figures 4 and 5 show cross-sectional views of a pulling roll and connector assembly housing at the grinding center of a grinding machine, in accordance with a disclosed embodiment of the utility model.

Conform to the description

Carry over pinch rolls device A

Rubber roller 1

Roller core 2

Bearing 3

Grinding center 4

Housing 5

Connector 6

Grinding of holes 7

Fastener 8

Connector assembly 10

Proximal end P

Distal end D

Tensioner T

The foregoing drawings are included to describe disclosed embodiments of the utility model by way of illustration only. One skilled in the art will readily recognize alternative embodiments of the present invention without departing from the inventive principles disclosed in the present specification.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention should be understood not to be limited to such an embodiment described below, and the technical idea of the present invention may be implemented in combination with other known techniques or other techniques having the same functions as those of the known techniques.

In the following description of the embodiments, for purposes of clearly illustrating the structure and operation of the present invention, directional terms are used, but the terms "front", "rear", "left", "right", "outer", "inner", "outward", "inward", "axial", "radial", and the like are to be construed as words of convenience and are not to be construed as limiting terms.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The foregoing has outlined the features and technical advantages of the present disclosure in order that the detailed description that follows may be better understood. Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the disclosure. Moreover, those skilled in the art will recognize that equivalent components are also within the scope of the present disclosure. The novel features which are believed to be characteristic of the disclosed elements of the utility model, together with further objects and advantages will be better understood from a consideration of the following description in conjunction with the accompanying drawings. It is to be expressly understood, however, that each of the figures is provided for the purpose of illustration and description only and is not intended as a definition of the limits of the present disclosure.

In the present disclosure, the word "exemplary" is used to mean "serving as an example, instance, illustration. Any embodiment or implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

While the utility model is susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and will be described in detail below. It should be understood, however, that there is no intention to limit the disclosure to the specific forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a component comprising a list of elements or steps does not include only those elements or steps but may include other elements or steps not expressly listed or inherent to such arrangement or method. In other words, once one or more components in an assembly are preceded by the word "comprising.

The disclosed embodiments relate to a spinning machine traction roller and a connector assembly thereof. The connector assembly avoids the damage that the traditional structure may cause to the bearing, as will be understood from the present disclosure. In addition, this connector assembly greatly promotes the bearing performance. Unlike the conventional structure of the drawing roll, the connector assembly shortens the connection time of the drawing roll, the connector assembly and the spinning machine.

According to some embodiments disclosed in the present invention, the drawing roller of the spinning machine may comprise a roller core and a rubber roller on the roller core. And the sections of the two ends of the roller core are designed into trapezoids. The diameter of the trapezoidal section is far smaller than the diameter of the center of the roller core. In addition, the right center of the roller core is wrapped by a rubber roller. The rubber roller is made of at least one synthetic material or elastic material, including synthetic polymer, rubber material and the like. It will be appreciated from the embodiments that the connector assembly structure is capable of supporting a pull roll at either end of the roll core. The connector assembly housing includes an opening extending from a proximal end and a distal end. It is understood by the embodiment that the opening may fixedly receive at least one bearing to support either end of the pull roll core.

The housing proximal end houses at least one bearing. At least one bearing is received within the housing such that an outer race of the at least one bearing may be parallel/fixed with the housing inner surface. According to the embodiment, the shell is provided with a trapezoidal part and is positioned at the right center of the shell. According to the embodiment, at least one of the far end and the near end in the shell is provided with the tensioner. It is understood by the present disclosure that the tensioner may be located at the proximal end of the housing, fixed and parallel to the bearing. In addition, the tensioner may support/clamp both ends of the pull roll core within the housing.

In addition, the connector assembly includes a connector detachably connected to the housing. According to an embodiment, the connector receives a support member in the spinning machine to support the drawing roller. As can be appreciated by the embodiment, the connector is removably attached to the distal end of the housing. And the outer diameter of the portion of the connector that is connected to the distal end of the housing corresponds to the inner diameter of the distal end of the housing itself. In one embodiment, the connector includes mating threads on a portion thereof that connects to the distal end of the housing and the distal end of the housing. And by fixing the distal end of the housing to the connector attached to the distal end, the threads allow the connector to be removably attached to the housing connector. In some embodiments, the connector may be snap-fit, press-fit, and other similar connections. In addition, the part of the connector connected with the far end of the shell can be fixed with the far end of the shell by a clamping groove or a hole. When the connector is coupled with the shell, the position of the clamping groove of the connector is matched with the far end of the shell and is fixed by a fastener, so that the connector is prevented from moving axially relative to the shell.

The present disclosure will be explained with the aid of one or more exemplary embodiment figures. The exemplary embodiments, however, should not be construed as limiting the disclosure. In addition, the sections of the spinning machine shown in the drawings have a specific configuration, so it should be noted that slight variations in the configuration of the sections of the spinning machine should be considered as being within the scope of the present disclosure.

The present disclosure will be described with reference to fig. 1-5. For the purposes of promoting an understanding of the principles of the utility model, reference will now be made to the specific embodiments illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the utility model is thereby intended, such alterations and further modifications in the illustrated methods, and such further applications of the principles of the utility model as illustrated therein being contemplated as would normally occur to one skilled in the art to which the utility model relates.

The following embodiments are merely exemplary and are not intended to limit the present invention to the particular applications and uses described herein. There is no intention to be bound by any expressed theory presented in the preceding background of the utility model, brief summary or the following detailed description. It is to be understood that the utility model disclosed may assume various alternative orientations and step sequences, except where expressly specified to the contrary. It is also to be understood that the specific devices or elements illustrated in the attached drawings, and described below, are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions and other physical characteristics relating to the embodiments disclosed are not to be considered as limiting, unless the claims expressly state otherwise. Preferred embodiments of the present disclosure will be described below in conjunction with the accompanying drawings. If specific directed technical terms are used, those terms/words are used only to enhance understanding of the present disclosure in conjunction with the accompanying drawings. It is understood, therefore, that the meaning of such terms/words should not be unduly limited to the scope of the present disclosure. Also, the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. Unless specified or limited otherwise, terms such as "mounted," "connected," "supported," and "coupled" and variations thereof as used herein are generic and encompass both direct and indirect mountings, connections, supports, and couplings. Further, "connected" and "coupled" are not restricted to physical/mechanical connections or couplings. It is to be understood that this disclosure is not limited to the particular devices, methods, applications, conditions or parameters described and/or shown herein, and that the terminology used herein is for the purpose of describing particular embodiments by way of example only and is not intended to be limiting of the claimed invention.

In general, the spinning machine (not shown) components that process the fibers comprise a drawing unit consisting of a number of drawing rolls. Referring to the drawings, a typical draw roll in a spinning machine is indicated by the letter "a" in the drawings. The following description is made in conjunction with fig. 1-5 to facilitate understanding, and reference may be made to specific figures as necessary. The drawing rolls (a) (hereinafter simply referred to as "drawing rolls (a)") are composed of top and bottom rolls. A number of top and bottom rollers may combine or orient the specified number of fibers before the spinning machine performs further operations on the specified number of fibers, including but not limited to twisting. The fiber strands are drawn by a drawing roll (A) to complete the fiber assembly or orientation process. As can be seen from one embodiment, the drawing rolls (a) are arranged on either side of a conveyor belt connecting the spinning machines, through which the fibers to be drawn are delivered. According to some embodiments, the pulling rolls (a) may be arranged on one side of or above the conveyor belt, or a combination of both. Alternatively, the pulling rolls (A) may be arranged in conjugate pairs, arranged as pulling top and bottom rolls, or arranged as transverse pulling rolls, diagonal pulling rolls, or the like. According to one embodiment, the pulling roll (A) can be supported by at least one bearing (3) on the belt frame. The arrangement of the pulling rolls (a) depends on a number of factors including, but not limited to, the direction of the belt, the manner in which the fibers are drawn, the amount of fiber draw, etc.

In addition, the drawing unit consisting of drawing rolls (a) (see fig. 1 in detail) is divided into several segments, including an upper pair of drawing rolls, a middle pair of drawing rolls and a lower pair of drawing rolls, which provide good stretching of the fibers delivered by the belt. According to one embodiment, in each section of the drawing rolls (A) in the conveying direction of the fibers, the outer surface running speed of each pair of drawing rolls is gradually increased at a given section of the drawing unit relative to the front section of the drawing unit. In addition, as the running speed of the traction roller (A) is increased from back to front, the fiber strand is lengthened along the fiber conveying direction, the fibers are redistributed, and the strand becomes thinner, namely the fiber quantity on the cross section of the final fiber strand is reduced. And the draw force between each pair of pull rolls can be determined as the ratio of the surface speeds of the back roll to the front roll. The fiber conveyed by the conveyer belt enters a drawing unit of a spinning machine, then sequentially passes through the drawing units between the top roller and the bottom roller along the advancing direction of the fiber, and finally is used as a drafted strand or fiber to be output.

The spinning machine drawing roller (a) comprises a roller core (2) (see fig. 2 for details). The cross section of both ends of the roll core (2) is trapezoidal, and as can be seen from an example, the trapezoidal cross section of the roll core (2) defines the bush of the roll core (2) (see fig. 2 for details). The core (2) of the traction roller (A) is partially wrapped with a layer of material made of at least one synthetic polymer or elastic material. The above-mentioned layers of synthetic polymer/elastomer material are generally referred to as rubber rolls and are designated by the reference numeral 1 in the corresponding figures. The rubber roller (1) in the traction roller (A) can improve the integral performance of the spinning machine and improve the quality of finished products (strands, thick lines and thin yarns). In addition, the rubber roller (1) can uniformly apply pressure to the fiber strand, so that the fiber, particularly the floating fiber, can be better grasped and controlled. However, as the pulling roll (a) continues to be used, the properties of the rubber covered roll (1) wrapping the roll core (2) decrease, such as a decrease in shore hardness, formation of a honeydew (honeydew) like surface, and the like. Subsequently, the rubber roll eccentricity is continuously increased, resulting in a decrease in the processing capacity for fiber strands. In long-term use, the surface of the rubber roller gradually becomes smooth, the material slides frequently, and traction faults and traction roller abrasion are increased. In order to improve the performance of the rubber roller (1), the traction roller (A) is required to be taken down from the spinning machine periodically to improve the quality of the fiber strands. The drawing roller (A) is ground to improve the Shore hardness and the surface roughness of the rubber roller (1).

Spinning machines have hitherto supported the pulling rolls on the conveyor belt (frame/common shaft) by means of bearings fixed on the frame of the conveyor belt. After the rubber roller is used for a period of time, polishing and grinding are needed to improve the performance of the rubber roller (specifically, the polishing and grinding is carried out according to raw materials and procedures). When the rubber roller is ground, the traction roller is arranged between the grinding centers (4) of the grinding machine and then is clamped axially. To achieve this, the bearing assembly with the stub shaft bushing is first removed from the pulling roll. Because the traditional process is more tedious, more consume the manpower, and inefficiency. In addition, frequently follow the traditional bearing of carry over pinch rolls dismouting also can influence bearing inner structure, lead to the trouble to send out early, further influence bearing and carry over pinch rolls life. Therefore, the following disclosure will solve the problems associated with conventional bearing and pull roll configurations for spinning machines.

It will be appreciated from the disclosure of the present invention that the connector assembly, which is designated by the reference numeral "10" in the drawings, solves the problems associated with conventional structures. A connector assembly (10) (see FIG. 1 in detail) for supporting a pulling roll (A) includes a housing (5) [ see FIG. 3 in detail ]. The housing (5) is substantially circular with a through opening. In one embodiment, the housing (5) has an opening extending from a proximal end (P) and a distal end (D). In another embodiment, the central cross-section of the housing (5) is trapezoidal, for example, the diameter of the housing (5) towards the proximal end (P) is larger than the diameter of the housing (5) towards the distal end (D). According to other embodiments, the diameter of the shell (5) at the distal end (D) is larger than the diameter of the shell (5) at the proximal end (P), so that the cross section is trapezoidal. According to one embodiment, at least one of said bearings (3) is accommodated in the housing (5). The at least one bearing (3) can be accommodated at the proximal end (P) of the housing (5), but is not limited thereto. And the outer race of the at least one bearing (3) is fixable to the inner circumferential surface of the housing (5) and is detachably attachable to the inner circumferential surface of the housing (5). The at least one bearing may be configured to rotatably support the bushing on either end of the core (2) of the pull roll (A). In addition, the proximal end (P) of the housing (5) is provided with a tensioner (T). The tensioner (T) may be parallel to the at least one bearing (3) and configured to clamp the pull roll (A) core (2) bushing within the housing (5). A shell (5) with at least one bearing (3) can be fixedly connected with a bushing at either end of a roller core (2) of the traction roller (A).

In addition, the connector assembly (10) may include a connector (6) capable of connecting to the housing (5). As can be seen in an embodiment, the connector (6) is detachably connectable to at least one of the proximal (P) or distal (D) ends of the housing. Therefore, according to the present disclosure, the connector (6) is detachably connectable to the housing distal end (D), and the related contents will be described in detail below. And the connector (6) falls on a support member in the spinning machine. According to one embodiment, the connector (6) connects the spinning machine frame to the housing (5) on either end of the draw roll (A). The outer diameter of the portion of the connector (6) connectable to the distal end (D) of the housing (5) corresponds to the inner diameter of the distal end of the housing (5). The outer circumferential surface of the portion of the connector (6) connectable to the distal end (D) of the housing (5) contains a large number of threads. Alternatively, the mating threads may be limited to the inner circumferential surface of the distal end (D) of the housing (5) for engaging the connector (6). The connector (6) is threadedly engaged with the distal end of the housing (5) to establish a connection between the draw roll and the spinning machine. As will be appreciated from some embodiments, the connector (6) may be connected to the distal end of the housing in other connection manners, including but not limited to a snap connection, a crimp connection, and the like. In addition, the part of the connector (6) which can be connected to the far end (D) of the shell (5) is provided with a clamping groove. And the far end (D) of the shell (5) for accommodating the connector (6) is also provided with a clamping groove for combining with the clamping groove on the connector (6). Once the connector (6) is inserted into the distal end of the housing (5), the slots abut one another to form a fastener (8) arrangement (see fig. 3 for details). The fastener (8) prevents the connector (6) from moving axially relative to the housing. According to one embodiment, the slot and the fastener (8) are in a key and keyhole relationship. In addition, the drawing roller (A) is also separated from the frame of the spinning machine after the connector (6) is taken out of the shell (5).

With combined reference to fig. 4 and 5, both show the pulling roll (a) placed inside the grinding centre (4). At this time, the pulling roll (A) is placed in the grinding center (4) together with the housing (5), whereas in the conventional structure, only the pulling roll is installed therebetween. Therefore, after the housing (5) is removed from the connector (6), the pulling roll (A) can be installed into the grinding center (4) together with the housing (5). The connector (6) can be left in the frame of the spinning machine. After removing the connector (6) from the housing (5), the pulling roll (A) together with the housing comprising the at least one bearing (3) can be mounted in the grinding centre (4). In addition, grinding holes (7) can be arranged at the two ends of the traction roller (A) to accommodate the grinding center (4). In addition, the shell (5) left on the drawing roll (A) is clamped by a spring device. By means of the device, the rubber roller (1) wrapping the traction roller (A) can be mechanically processed and ground under the condition that at least one bearing (3) is not interfered.

The configuration of the connector assembly (10) for connecting the drawing roller (A) and the spinning machine will greatly improve the durability of the at least one bearing (3) and the drawing roller (A). In addition, unlike conventional arrangements, the device disclosed herein simplifies the grinding process of the rubber roller (2) without interfering with the bearing (3). The connector assembly (10) disclosed by the utility model can solve the problems of labor consumption and low efficiency of the process caused by a complex device. In addition, frequent dismounting of the bearing (3) from the traction roller (A) is avoided. Therefore, the early occurrence of faults can be avoided, and the service life of at least one bearing (3) and the traction roller (A) is greatly prolonged.

It is noted that any mechanical changes, variations, or modifications within the meaning and range of equivalents are intended to fall within the scope of the present disclosure.

With respect to the singular and plural forms of the terms herein, those having skill in the art may translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. To ensure clarity, the singular to plural conversion is explicitly defined herein.

It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the claims) are generally regarded as "open" terms, e.g., "including" should be interpreted as "including but not limited to," "having" should be interpreted as "at least," "includes but is not limited to," and the like. It will be further understood by those within the art that if a specific number appearing in a statement cited in a claim is intended to be explicitly incorporated in the claim, such intent will be deemed to be absent in the absence of such cited intent. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases "at least one", "one or more" to introduce claim recitations. However, the use of the foregoing phrases does not imply that the introduction of a claim recitation modified by the indefinite articles "a" or "an" limits claims containing such claim recitation to inventions containing only one such recitation, even when the claim includes the introductory phrases "one or more" or "at least one" and indefinite articles "a" or "an" (e.g., "a" or "an" should typically be interpreted to mean "at least one" or "one or more"); the same holds true for the use of the indefinite article "a" or "an" when referring to a claim. Also, even if the recited claim recitations are explicitly labeled with a specific number, those skilled in the art will recognize that such recitations are generally understood to be "at least + the employed number" (e.g., without other variations, merely reciting "two recitations," such as "at least two recitations," or "two or more recitations"). In addition, in some instances, if a conventional structure similar to "at least one of A, B, C" appears, the sentence pattern is generally meant to be consistent with the understanding of those skilled in the art for the conventional structure, for example, "a system has at least one of A, B, C" includes but is not limited to the following: the system has only a, only B, only C, the system has a and B, has a and C, has B and C, or the system has both A, B and C. It will be further understood by those within the art that disjunctive words and/or phrases having two or more alternative terms, whether in the description, claims, or drawings, should be understood to include one, either or both terms. For example, the phrase "a or B" is understood to include possibly only "a" or only "B", or both.

Although various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. Furthermore, the aspects and embodiments disclosed herein are illustrative only and not limiting, with the true scope and intent of the disclosure being set forth in the following claims.

Claims (15)

1. A connector assembly (10) of a drawing roller of a spinning machine, characterized in that it comprises the following parts:

a housing (5) comprising an opening extending from a proximal end (P) and a distal end (D), and a portion of said opening fixably housing at least one bearing (3), said bearing (3) being for supporting a pull roll (A) liner;

a connector (6), the connector (6) being detachably connected to the housing (5) and the connector (6) being received by a support member supporting a drawing roller in a spinning machine.

2. The assembly (10) according to claim 1, characterized in that at least one of said bearings (3) is housed inside said proximal end (P) of said casing (5).

3. Assembly (10) according to claim 1, characterized in that a pulling roll (a) is mounted on the grinding centre (4) together with the housing (5) comprising at least one of the bearings (3) after the connector (6) has been removed from the housing (5).

4. An assembly (10) according to claim 1, characterized in that the outer ring of at least one of the bearings (3) is fixed to the inner surface of the housing (5).

5. The assembly (10) of claim 1, wherein the housing (5) has a trapezoidal shape in a right central section.

6. The assembly (10) of claim 1, characterized in that a tensioner (T) is provided at the proximal end (P) of the housing (5), said tensioner (T) being adapted to support the pulling roll (a) within the housing (5).

7. The assembly (10) according to claim 1, wherein said connector (6) is removably connected to said distal end (D) of said housing (5).

8. Assembly (10) according to claim 7, characterized in that the outer diameter of the connector (6) is connectable to the distal end (D) of the housing (5), the outer diameter of the connector (6) matching the inner diameter of the distal end (D) of the housing (5).

9. The assembly (10) of claim 8, wherein said connector (6) is connectable to said distal end (D) of said housing (5), said distal end (D) of said housing (5) including a mating thread, said mating thread removably coupling said connector (6) with said housing (5).

10. The assembly (10) of claim 1, wherein the connector (6) is connectable to a portion of the distal end (D) of the housing (5), the distal end (D) of the housing (5) including a catch to receive a fastener (8), the fastener (8) preventing axial movement of the connector (6) relative to the housing (5).

11. Spinning machine drawing roller (a), characterized in that it comprises the following parts:

a roll core (2) with bushings at either end;

a rubber roller (1) positioned on the roller core (2);

a connector assembly (10) is disposed on either end extension of the roll core (2), and the assembly (10) comprises:

a housing (5) comprising an opening extending from a proximal end (P) and a distal end (D), and said opening being fixable accommodating at least one bearing (3);

a connector (6) detachably connected to at least one of the ends of the distal end (D) and the proximal end (P) of the housing (5).

12. Spinning machine traction roller (a) according to claim 11, characterized by comprising a tensioner (T) on said proximal end (P) of said housing (5), said tensioner (T) being able to support said traction roller (a) inside said housing (5).

13. Spinning machine draw roll (a) according to claim 11, characterized in that the housing (5) is placed on the grinding centre (4) after the connector (6) has been removed from the housing (5) comprising at least one of the bearings (3).

14. Spinning machine traction roller (a) according to claim 11, characterized in that said connector (6) is connectable to said distal end (D) of said housing (5), said distal end (D) of said housing (5) comprising a mutually matching thread, which detachably couples said connector (6) with said housing (5).

15. Spinning machine traction roller (a) according to any of claims 11 and 14, characterized in that said connector (6) is connectable to said distal end (D) of said housing, said distal end (D) of said housing (5) containing a catch for receiving a fastener (8), said fastener (8) being able to prevent axial movement of said connector (6) with respect to said housing (5).

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