DESC:
FIELD OF INVENTION
The present invention relates to a method and system for measuring the weak places in an elongated textile material.

BACKGROUND OF THE INVENTION
Generally elongated textile materials should possess good tensile properties so that they did not break during the fabric manufacturing process. Mostly in warping and weaving machines due to the heavy load exerted on each elongated textile material, the elongated textile material which has weaker tensile strength breaks. Break of each elongated textile material in a warping or weaving machine creates a defect in fabric as well as the efficiency of the machine gets affected.

To assess the tensile characteristics of an elongated textile material, there are many methods practiced. The most popular method is to test the breaking force of the elongated textile material using constant rate of extension (CRE) principle. Another method is to measure the breaking force of the elongated textile material in the form of a lea or a skein. In both methods, the elongated textile material is physically broken by means of a loading component to break measure the breaking force.

Reference is made to Patent document US5907394A. This document provides a fiber strength testing system. A gin process control system including sensing stations for sensing the physical properties of cotton as it progresses through a gin. A fiber length tester provides information on the length distribution, breaking strength, and elongation of the cotton fibers. Cotton samples are gathered from the gin flow stream and presented to the sensing stations in a variety of manual, semi-automated, and automated fashions. In a fully automated unit, the sensing stations are connected directly to the gin. The sensing stations are also in communication with the gin process control system, which uses the data from the sensing stations to automatically control the operation of the gin. Alternately, the sensing stations are assembled into a stand-alone unit. In a semi-automatic version of the stand-alone unit, samples are manually gathered and presented to the unit in cassettes for automated subsampling and testing by the sensing stations. In this semi-automatic version, the sensing stations may be in a configuration identical to that of the fully automatic, on-line unit. In a manual version of the stand-alone unit, the samples are manually gathered and manually placed into contact with the various sensing stations. The information reported by the stand-alone units can be used to manually control the operation of the gin.

The present approach differs entirely from the traditional methods. This method simulates the real process conditions to ascertain a tangible performance of elongated textile material.

SUMMARY OF THE INVENTION
The following presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. This summary is not an extensive overview of the present invention. It is not intended to identify the key/critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some concept of the invention in a simplified form as a prelude to a more detailed description of the invention presented later.

The main object of present invention is to overcome the drawbacks of prior arts.

The present invention relates to a method and system for measuring the weak places in an elongated textile material without breaking it at any specific fixed lengths.

The method involves passing the elongated textile material through more than one pair of conveyor rollers and a force measuring device. In particular, the elongated textile material is passed through the first pair of conveyor rollers and then through the force measuring device and finally through the second pair of conveyor rollers.

The method employs a closed loop force measurement and control system. In particular, required force is set from a control unit. The control unit is used to set the required force in terms of any units like cN, grams etc. The control unit also measures the force and adjusts to the set value automatically. The required force is transferred from the control unit to the testing unit. When the testing is started, the elongated textile material is withdrawn from the package through the first pair of conveyor rollers, force measuring device and the second pair of conveyor rollers. When the elongated textile material starts running, the force prevailing on the elongated textile material during running is measured. The measured force is compared with the set force as set in the control unit. For achieving the required force, the speed of any one pair of the conveyor rollers is increased or decreased.

In one embodiment, the speed of second pair of conveyor rollers is increased to increase the exerted force over the elongated textile material. Once the required force is achieved, the speed of conveyor roller is kept constant. In another embodiment, the speed of the first pair of conveyor rollers is decreased to increase the exerted force over the elongated textile material to achieve the required force.

A tolerance level for force is also set from the control unit. In case of any small deviation in the measured force compared to the required force, the speed of the rollers is not varied when the force is within the specified tolerance. In case of measured force is outside the tolerance levels, the speed of the rollers is varied to achieve the required force to be exterted on the elongated textile material.

Once the required force is exerted and confirmed by the force measuring device, the actual measurement starts. A required test length of the elongated textile material is set in the control unit before the test start. The system measures the length of the elongated textile material run. During running, if any weak place occurs in the elongated textile material where the force level is lesser than the set force, the elongated textile material will break. When the elongated textile material breaks, the system interrupts testing and registers the break. Now, user starts the testing again by continuing with the remaining elongated textile material. In such a way, the entire test length is completed and the number of breaks is counted. The counted breaks is again recorded in the control unit and provided to user either directly or in any other parameters derived from thereof.

Alternately, the required number of breaks can be set in the control unit. Once the required number of breaks is achieved, the completed test length is measured as a parameter for assessing the performance of elongated textile material.

In one alternate embodiment, there can be plurality of above explained system running simultaneously to evaluate more samples of elongated textile materials. In such a case, the conveyor rollers and the force measuring devices can be in plural.

In another alternate embodiment, in case of plurality of units are installed then the force measuring device can be one in any one of the plurality of units. This is because the required speed to achieve the required force can be done commonly for all the elongated textile materials running in plural by means of common drive for plurality of conveyor rollers.

In another embodiment, the above system can be operated as a standalone or it can be fitted on another tensile measuring instrument.

Other aspects, advantages, and salient features of the invention will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses exemplary embodiments of the invention.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The above and other aspects, features and advantages of the embodiments of the present disclosure will be more apparent in the following description taken in conjunction with the accompanying drawings, in which:

Figure 1 illustrates the elongated textile material (1) passing through the first conveyor rollers (2) and second conveyor rollers (3) according to an embodiment of present invention.

Figure 2 illustrates the plurality of elongated textile materials (1) passing through plurality of testing units according to an embodiment of present invention.

Persons skilled in the art will appreciate that elements in the figures are illustrated for simplicity and clarity and may have not been drawn to scale. For example, the dimensions of some of the elements in the figure may be exaggerated relative to other elements to help to improve understanding of various exemplary embodiments of the present disclosure. Throughout the drawings, it should be noted that like reference numbers are used to depict the same or similar elements, features, and structures.

DETAILED DESCRIPTION OF PRESENT INVENTION
The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustration purpose only and not for the purpose of limiting the present disclosure as defined by the appended claims and their equivalents.

It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments belong. Further, the meaning of terms or words used in the specification and the claims should not be limited to the literal or commonly employed sense, but should be construed in accordance with the spirit of the disclosure to most properly describe the present disclosure.

The terminology used herein is for the purpose of describing particular various embodiments only and is not intended to be limiting of various embodiments. As used herein, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising" used herein specify the presence of stated features, integers, steps, operations, members, components, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, members, components, and/or groups thereof. Also, Expressions such as "at least one of," when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list.

The present disclosure will now be described more fully with reference to the accompanying drawings, in which various embodiments of the present disclosure are shown. The present disclosure may, however, be embodied in many different forms and should not be construed as being limited to the various embodiments set forth herein, rather, these various embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the present disclosure. Furthermore, a detailed description of other parts will not be provided not to make the present disclosure unclear. Like reference numerals in the drawings refer to like elements throughout.

The present invention relates to a method and system for measuring the weak places in an elongated textile material without breaking it at any specific fixed lengths.

The method involves passing the elongated textile material through more than one pair of conveyor rollers and a force measuring device. In particular, the elongated textile material is passed through the first pair of conveyor rollers and then through the force measuring device and finally through the second pair of conveyor rollers.

The method employs a closed loop force measurement and control system. In particular, required force is set from a control unit. The control unit is used to set the required force in terms of any units like cN, grams etc. The control unit also measures the force and adjusts to the set value automatically. The required force is transferred from the control unit to the testing unit. When the testing is started, the elongated textile material is withdrawn from the package through the first pair of conveyor rollers, force measuring device and the second pair of conveyor rollers. When the elongated textile material starts running, the force prevailing on the elongated textile material during running is measured. The measured force is compared with the set force as set in the control unit. For achieving the required force, the speed of any one pair of the conveyor rollers is increased or decreased.

In one embodiment, the speed of second pair of conveyor rollers is increased to increase the exerted force over the elongated textile material. Once the required force is achieved, the speed of conveyor roller is kept constant. In another embodiment, the speed of the first pair of conveyor rollers is decreased to increase the exerted force over the elongated textile material to achieve the required force.

A tolerance level for force is also set from the control unit. In case of any small deviation in the measured force compared to the required force, the speed of the rollers is not varied when the force is within the specified tolerance. In case of measured force is outside the tolerance levels, the speed of the rollers is varied to achieve the required force to be exterted on the elongated textile material.

Once the required force is exerted and confirmed by the force measuring device, the actual measurement starts. A required test length of the elongated textile material is set in the control unit before the test start. The system measures the length of the elongated textile material run. During running, if any weak place occurs in the elongated textile material where the force level is lesser than the set force, the elongated textile material will break. When the elongated textile material breaks, the system interrupts testing and registers the break. Now, user starts the testing again by continuing with the remaining elongated textile material. In such a way, the entire test length is completed and the number of breaks is counted. The counted breaks are again recorded in the control unit and provided to user either directly or in any other parameters derived from thereof.

Alternately, the required number of breaks can be set in the control unit. Once the required number of breaks is achieved, the completed test length is measured as a parameter for assessing the performance of elongated textile material.

In one alternate embodiment, there can be plurality of above explained system running simultaneously to evaluate more samples of elongated textile materials. In such a case, the conveyor rollers and the force measuring devices can be in plural.

In another alternate embodiment, in case of plurality of units are installed then the force measuring device can be one in any one of the plurality of units. This is because the required speed to achieve the required force can be done commonly for all the elongated textile materials running in plural by means of common drive for plurality of conveyor rollers.

In another embodiment, the above system can be operated as a standalone or it can be fitted on another tensile measuring instrument.

Fig 1 shows the elongated textile material (1) passing through the first conveyor rollers (2) and second conveyor rollers (3). In between the first conveyor rollers (2) and second conveyor rollers (3), a force measuring device (4) is available. The elongated textile material is passed through the guiding element (5) of the force measuring device (4). The force measuring device (4), first conveyor rollers (2) and second conveyor rollers (3) are connected to the control unit (6).

Fig 2 shows the plurality of elongated textile materials (2) passing through plurality of testing units which consists of plurality of first conveyor rollers (2), plurality of second conveyor rollers (3) and plurality of force measuring devices (4). Such an arrangement is useful for completing larger samples in a short testing time.

Those skilled in the art will recognize other use cases, improvements, and modification to the embodiments of the present disclosure. All such improvements and other use-cases are considered within the scope of the concepts disclosed herein.
,CLAIMS:1. A system for measuring the weak places in an elongated textile material, the system comprising:
a control unit (6); and
a testing unit;
wherein the testing unit consisting:
one or more first conveyor rollers (2),
one or more second conveyor rollers (3), and
one or more force measuring devices (4);
wherein the elongated textile material is passed through the first pair of conveyor rollers (2) and thereafter through the force measuring device and finally through the second pair of conveyor rollers (3).

2. The system as claimed in claim 1, wherein the control unit (6) is configured to set a required force.

3. The system as claimed in claim 1, wherein the first pair of conveyor rollers (2) having varied speed to achieve the required force set in the control unit (6).

4. The system as claimed in claim 1, wherein the second pair of conveyor rollers (3) having varied speed to achieve the required force set in the control unit (6).

5. The system as claimed in claim 1, wherein the control unit (6) is configured to transfer the required force to the testing unit.

6. The system as claimed in claim 1, wherein the control unit (6) is configured with a required test length of the elongated textile material before the test starts.

7. The system as claimed in claim 1, wherein the system is configured to measure the force prevailing on the elongated textile material during running.

8. The system as claimed in claim 1, wherein the measured force is compared with the set force as set in the control unit (6).

9. The system as claimed in claim 1, wherein the elongated textile material breaks if any weak place occurs in the elongated textile material where the force level is lesser than the set force.

10. The system as claimed in claim 1, wherein the system is configured to interrupt testing when the elongated textile material breaks and registers the break.

11. The system as claimed in claim 1, wherein the speed of the second pair of conveyor rollers is increased to increase the exerted force over the elongated textile material.

12. The system as claimed in claim 1, wherein the speed of the first pair of conveyor rollers is decreased to increase the exerted force over the elongated textile material to achieve the required force.

13. The system as claimed in claim 1, wherein once the required force is achieved, the speed of the conveyor roller is kept constant.

14. A method for measuring the weak places in an elongated textile material, the method comprising:
passing the elongated textile material through the first pair of conveyor rollers then through the force measuring device and finally through the second pair of conveyor rollers.

15. The method as claimed in claim 14, wherein the method employs a closed loop force measurement and control system.