EP1595983A1 - Multi-device machine for treating thread before weaving, applying a provisional mechanical treatment - Google Patents
Multi-device machine for treating thread before weaving, applying a provisional mechanical treatment Download PDFInfo
- Publication number
- EP1595983A1 EP1595983A1 EP04704244A EP04704244A EP1595983A1 EP 1595983 A1 EP1595983 A1 EP 1595983A1 EP 04704244 A EP04704244 A EP 04704244A EP 04704244 A EP04704244 A EP 04704244A EP 1595983 A1 EP1595983 A1 EP 1595983A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- false
- twisting
- machine
- thread
- loom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist
- D01H7/923—Spinning or twisting arrangements for imparting transient twist, i.e. false twist by means of rotating devices
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
- D04B35/22—Devices for preparatory treatment of threads
Definitions
- the object of the present invention is related to a multi-device false-twist machine, especially designed for on-line preparation of thread (by false-twisting), just before entering the need1e/s of all types of loops, knitting machines, etc. of technical and textile threads.
- Said machine is especially designed in order to house several false-twister devices, where each device makes the thread or threads that pass through said device twist provisionally because of the effect of the false-twisting of a set number of rotations/meter on its path to the need1e of what may be a loom, a knitting machine, etc.
- the warp threads that feed need1e knitting machines and looms present a number of limitations when sending through each thread or group of threads joined by the hole of its respective need1e.
- Said thread or joined group of threads may be twisted or not depending on the effect desired in the final fabric, and upon passing through the respective need1e there is a high probability that the thread/s and/or corresponding need1e should break due to the friction among the thread/s and need1e due to the existence in said thread/s of a knot caused by the difference in unitary tensions in the case of groups of joined threads, or also due to the existence of certain irregularities in the thread/s itself/themselves such as loosenings, loops, etc.
- This phenomenon makes the production efficiency of said machines very low due to the operator's stopping the loom and provoked by said phenomenon, the application of previous corrective measures being habitual in order to present said problems as far as possible, centred in checking that the prime materials that are fed into said machines are produced with previous twisting operations and in good conditions of regularity, without knots, loosenings, etc.
- the multi-device false-twisting machine re-structures the present carpet or fabric production process, since the operation of creating false-twisting Is added "on-line" to the general fabric production process, inserted before the needles of the need1e machine, whether the latter is a loom or a need1e knitting machine, which does not lengthen the carpet or fabric production process in spite of being an additional operation.
- pre-twisting of the thread is only carried out as a preventive measure in order to increase the regularity of the thread/s, and as a consequence the efficiency in the need1e loom, needle knitting machine or need1e braiding machine, in an improved acceptance of the thread/s passing through its respective holes, the process of pre-twisting can be eliminated by installing the multi-device false-twisting machine on-line before the thread enters the needles or the need1e knitting machine.
- the multi-device false-twisting machine is composed of a fixed frame that may include adjustable parts, on which the false-twisting devices are mounted (as is already known in the market), in a varying number depending on the number of threads that the loom or knitting machine has
- the machine On knitting machines with one hole, the machine has one device, and up to 1.500 devices on needle looms. Said machine is disposed so that the devices may be located at a distance and with the appropriate orientation in relation to the needles of the loom or knitting machine, with the objective that the threads proceeding from the spools of the input creel, before arriving at the needles, should pass through the devices and the false-twisting effect produced by the devices should reach the needles of the loom or knitting machine.
- each false-twisting device is provided with an activation system, whether pneumatic by electrovalves, electro-mechanical, with an electric motor and mechanical transmission, or others, depending on the type of device applied among those known in the market.
- said devices generate a false-twist on each of the thread/s that pass through said respective false-twisting device.
- a false-twisting device is an apparatus that, essentially, has a point at which the thread is sent into the device and a point at which the thread comes out of said device, as well as an intermediate zone between the two aforementioned points at which the thread is rotated with respect to its own lengthwise axis in one or another rotation direction depending how it is activated.
- the multi-device machine of the invention allows the installation of false-twisting devices of any of the types known in the state of the art, and in it, the number of rotations per unit of time generated on the thread, the direction of rotation of said thread and the duration of rotation movement generated are the parameters whose values are set before starting the warp production operation.
- the combination of the values of said parameters is controlled and directed by a central unit by a working program and said combination of values is specific depending on the calibre and type of thread or threads to be processed.
- the distance from the set point, within the zone in which the thread is rotated, that is, where the false-twist is generated before the thread enters the loom, up to the respective need1e of the loom or knitting machine can also be adjusted and the direction of the thread oriented depending on each different product to 5 be processed, with the purpose of the threads having, just before entering the needle, the necessary number of twists to present loosenings or loops and so that they may pass through said needles without any trouble.
- said distance and orientation it may be maintained as in the majority of threads it is already correct.
- the essential object of the invention being to generate twists in the thread or threads, whether one or several and already twisted or not, proceeding from an input creel of the loom, at an intermediate point between said creel and the needle (8) of the loom or knitting machine so that as soon as said thread/s make contact with said need1e (8) it is provided with a set number of twists per meter, thus by such an effect providing the thread with greater regularity and roundness, therefore preventing breakage problems due to the formation of loosenings, loops or other causes derived from insufficient twisting.
- the thread (1) proceeding from the input creel are sent to the frame (3) on which the false-twisting devices (4) being used are mounted, from among the different types known in the art, activated by their activation system.
- the devices are mechanical rollers that are activated simultaneously by a belt (6) proceeding from an electrical, mechanical, pneumatic, etc. motor, among those known can be used to put the invention in practice.
- it may or may not be necessary to use one or more thread direction change rollers (2) depending on the distance and orientation chosen for each product.
- the threads enter and cross through the respective devices, which produces the twists in the thread/s, said twists being made in a set direction and on the portion of thread between the device (4) and the roller (2) (or between the device (4) and the input creel when rollers are not being used) and in the opposite direction on the portion of thread between the device (4) and the needle (8).
- the number of twists per unit of length that the thread carries at the time it enters into the need1e (8) depends on: the relative position of the devices (4) with respect to the roller (2) positions and the need1e (8), the quantity and calibre of the threads to be sent through a single needle and whether said threads are twisted amongst themselves, the degree of false-twist generated by the device (4), the input speed of the warp thread generated by the loom, the cycle of rotation movements generated by the device (4) and the sequence of rotation movements and stops, if set, of each cycle, all of which is determined and programmed depending on the characteristics and needs of the thread to be processed.
- the activation motor (5) is provided with a conventional thread control system with regards to the degree and direction of the false-twist.
- a general program sets the variables of speed and thread rotation, including the specific movement sequence and the work cycle for each specific type of thread to be processed.
- the essential characteristic of the multi-device false twisting machine is that it is mounted on-line within the main machine, that the operation of the devices is carried out as just one of the series of operations of said main machine, and that the operation of the devices does not in any way condition the thread processing speed in the needle loom, the needle knitting machine, etc., although it does increase the efficiency of the functioning of said weaver, knitting machine, etc.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Knitting Machines (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
- The object of the present invention is related to a multi-device false-twist machine, especially designed for on-line preparation of thread (by false-twisting), just before entering the need1e/s of all types of loops, knitting machines, etc. of technical and textile threads.
- Said machine is especially designed in order to house several false-twister devices, where each device makes the thread or threads that pass through said device twist provisionally because of the effect of the false-twisting of a set number of rotations/meter on its path to the need1e of what may be a loom, a knitting machine, etc.
- By thus effecting the false-twist in this way the regularity of the thread is increased, avoiding many problems later in the final destination (loom, knitting 20 machine, etc.), since loosenings are not formed, which cause breakage problems in the thread/s and the needle/s, as well as a lack of quality in the final product.
- At present, the warp threads that feed need1e knitting machines and looms present a number of limitations when sending through each thread or group of threads joined by the hole of its respective need1e. Said thread or joined group of threads may be twisted or not depending on the effect desired in the final fabric, and upon passing through the respective need1e there is a high probability that the thread/s and/or corresponding need1e should break due to the friction among the thread/s and need1e due to the existence in said thread/s of a knot caused by the difference in unitary tensions in the case of groups of joined threads, or also due to the existence of certain irregularities in the thread/s itself/themselves such as loosenings, loops, etc.
- This phenomenon makes the production efficiency of said machines very low due to the operator's stopping the loom and provoked by said phenomenon, the application of previous corrective measures being habitual in order to present said problems as far as possible, centred in checking that the prime materials that are fed into said machines are produced with previous twisting operations and in good conditions of regularity, without knots, loosenings, etc.
- The multi-device false-twisting machine re-structures the present carpet or fabric production process, since the operation of creating false-twisting Is added "on-line" to the general fabric production process, inserted before the needles of the need1e machine, whether the latter is a loom or a need1e knitting machine, which does not lengthen the carpet or fabric production process in spite of being an additional operation.
- In cases such as the production of fabrics in which, at present, pre-twisting of the thread is only carried out as a preventive measure in order to increase the regularity of the thread/s, and as a consequence the efficiency in the need1e loom, needle knitting machine or need1e braiding machine, in an improved acceptance of the thread/s passing through its respective holes, the process of pre-twisting can be eliminated by installing the multi-device false-twisting machine on-line before the thread enters the needles or the need1e knitting machine.
- The multi-device false-twisting machine is composed of a fixed frame that may include adjustable parts, on which the false-twisting devices are mounted (as is already known in the market), in a varying number depending on the number of threads that the loom or knitting machine has
- On knitting machines with one hole, the machine has one device, and up to 1.500 devices on needle looms. Said machine is disposed so that the devices may be located at a distance and with the appropriate orientation in relation to the needles of the loom or knitting machine, with the objective that the threads proceeding from the spools of the input creel, before arriving at the needles, should pass through the devices and the false-twisting effect produced by the devices should reach the needles of the loom or knitting machine.
- In the multi-device machine of the invention, each false-twisting device is provided with an activation system, whether pneumatic by electrovalves, electro-mechanical, with an electric motor and mechanical transmission, or others, depending on the type of device applied among those known in the market. In any case, said devices generate a false-twist on each of the thread/s that pass through said respective false-twisting device.
- A false-twisting device is an apparatus that, essentially, has a point at which the thread is sent into the device and a point at which the thread comes out of said device, as well as an intermediate zone between the two aforementioned points at which the thread is rotated with respect to its own lengthwise axis in one or another rotation direction depending how it is activated. The multi-device machine of the invention allows the installation of false-twisting devices of any of the types known in the state of the art, and in it, the number of rotations per unit of time generated on the thread, the direction of rotation of said thread and the duration of rotation movement generated are the parameters whose values are set before starting the warp production operation. The combination of the values of said parameters is controlled and directed by a central unit by a working program and said combination of values is specific depending on the calibre and type of thread or threads to be processed.
- The distance from the set point, within the zone in which the thread is rotated, that is, where the false-twist is generated before the thread enters the loom, up to the respective need1e of the loom or knitting machine can also be adjusted and the direction of the thread oriented depending on each different product to 5 be processed, with the purpose of the threads having, just before entering the needle, the necessary number of twists to present loosenings or loops and so that they may pass through said needles without any trouble. Although generally, once said distance and orientation is set it may be maintained as in the majority of threads it is already correct.
- In order to provide an improved understanding of the present invention a practical preferred embodiment of the object of the present invention is included below, based on the attached figures.
- Figure 1:
- View of the multi-device false-twisting machine mounted on a "TUFTING" needle loom
- Figure 2:
- Front view of the multi-device false-twisting machine mounted on a "TUFTING" needle loom.
- The preferred embodiment disclosed below should be understood as just one of the many which, as an application of the present invention, may be put into practice, taking into account that the type of false-twisting device is not an essential part of the invention and any type of said device known in the art may be used in any practical embodiment of the machine of the invention.
The essential object of the invention being to generate twists in the thread or threads, whether one or several and already twisted or not, proceeding from an input creel of the loom, at an intermediate point between said creel and the needle (8) of the loom or knitting machine so that as soon as said thread/s make contact with said need1e (8) it is provided with a set number of twists per meter, thus by such an effect providing the thread with greater regularity and roundness, therefore preventing breakage problems due to the formation of loosenings, loops or other causes derived from insufficient twisting. - The thread (1) proceeding from the input creel are sent to the frame (3) on which the false-twisting devices (4) being used are mounted, from among the different types known in the art, activated by their activation system. In this embodiment, the devices are mechanical rollers that are activated simultaneously by a belt (6) proceeding from an electrical, mechanical, pneumatic, etc. motor, among those known can be used to put the invention in practice. Similarly, it may or may not be necessary to use one or more thread direction change rollers (2) depending on the distance and orientation chosen for each product.
- The threads enter and cross through the respective devices, which produces the twists in the thread/s, said twists being made in a set direction and on the portion of thread between the device (4) and the roller (2) (or between the device (4) and the input creel when rollers are not being used) and in the opposite direction on the portion of thread between the device (4) and the needle (8). The number of twists per unit of length that the thread carries at the time it enters into the need1e (8) depends on: the relative position of the devices (4) with respect to the roller (2) positions and the need1e (8), the quantity and calibre of the threads to be sent through a single needle and whether said threads are twisted amongst themselves, the degree of false-twist generated by the device (4), the input speed of the warp thread generated by the loom, the cycle of rotation movements generated by the device (4) and the sequence of rotation movements and stops, if set, of each cycle, all of which is determined and programmed depending on the characteristics and needs of the thread to be processed.
- The activation motor (5) is provided with a conventional thread control system with regards to the degree and direction of the false-twist. A general program sets the variables of speed and thread rotation, including the specific movement sequence and the work cycle for each specific type of thread to be processed.
- It is important to note that the essential characteristic of the multi-device false twisting machine is that it is mounted on-line within the main machine, that the operation of the devices is carried out as just one of the series of operations of said main machine, and that the operation of the devices does not in any way condition the thread processing speed in the needle loom, the needle knitting machine, etc., although it does increase the efficiency of the functioning of said weaver, knitting machine, etc.
Claims (2)
- Multi-device false-twisting machine, especially for treating threads before they are woven in all types of looms and need1e knitting machines, characterised in that:a) it is composed of a fixed frame (3) that may be provided with adjustable parts on which the false-twisting devices are mounted, these devices being of any of the types known in the art, said adjustable frame being provided with a variable number of said devices depending on the number of needles that the loom or knitting machine has, and be means of programming and control of the false-twisting operation variables such as the degree of false-twisting generated by the device (4), and the sequence of rotation movements and stops, if set, in each cycle, all of which is set and programmed depending on the characteristics, including that of the thread being previously twisted, and needs of the thread to be processed;b) it is situated, on the loom or knitting machine, at en intermediate point between the Input creel and the needles (8) of the loom or knitting machine in the direction of movement of the thread, that is as en on-line process with the posterior weaving process, at en appropriate distance and orientation in relation to the needles (8) of the loom or knitting machine, with the objective that the threads proceeding from the spools of the input creel should pass, before reaching the needles, through the false-twisting devices (4) and that the false-twist effect produced by the devices should reach the needles of the loom or knitting machine;c) by activating the respective false-twisting devices, in the threads that reach the respective needles On the loom or knitting machine it generates the necessary and pre-set degree of provisional twist as established by said means of programming in order to obtain roundness in the threads, reduce or eliminate loosenings, loops and irregularities, thus eliminating the trouble that said loosenings or irregularities often cause upon becoming entangled with the needles; and
- Multi-device false-twisting machine, especially for treating threads before they are woven in all types of looms and need1e knitting machines, according to the first claim, characterised in that said machine is combinable with any type of needle loom, needle knitting machine, needle braiding machine, etc
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200300164A ES2228239B1 (en) | 2003-01-22 | 2003-01-22 | MULTI-DEVICE MACHINE TO TREAT THREADS BEFORE BEING FABRICS APPLYING A PROVISIONAL MECHANICAL TREATMENT. |
ES200300164 | 2003-01-22 | ||
PCT/ES2004/000028 WO2004065673A1 (en) | 2003-01-22 | 2004-01-22 | Multi-device machine for treating thread before weaving, applying a provisional mechanical treatment |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1595983A1 true EP1595983A1 (en) | 2005-11-16 |
EP1595983B1 EP1595983B1 (en) | 2010-03-10 |
Family
ID=32749098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04704244A Expired - Lifetime EP1595983B1 (en) | 2003-01-22 | 2004-01-22 | Multi-device machine for treating thread before weaving, applying a provisional mechanical treatment |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060042221A1 (en) |
EP (1) | EP1595983B1 (en) |
AT (1) | ATE460515T1 (en) |
DE (1) | DE602004025906D1 (en) |
ES (1) | ES2228239B1 (en) |
WO (1) | WO2004065673A1 (en) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1278903B (en) * | 1961-11-29 | 1968-09-26 | Bruno Cecchi | False twist device for rovings formed from staple fibers |
GB1060286A (en) * | 1965-04-27 | 1967-03-01 | Elitex Zavody Textilniho | Knitting machine |
US3488936A (en) * | 1967-11-17 | 1970-01-13 | Turbo Machine Co | Warp twisting apparatus |
US3482384A (en) * | 1967-12-13 | 1969-12-09 | Turbo Machine Co | Friction twisting apparatus |
US3631664A (en) * | 1968-06-14 | 1972-01-04 | Macotex Machinery Ltd | Method of, and apparatus for, delivering yarns to textile machines |
GB1357325A (en) * | 1970-05-26 | 1974-06-19 | Colton L H | Method of and apparatus for imparting twist to yarns |
US3837155A (en) * | 1970-06-01 | 1974-09-24 | Celanese Corp | Pneumatic false twist interlaced yarn |
GB1496654A (en) * | 1973-12-18 | 1977-12-30 | Iws Nominee Co Ltd | Knitting method with false twist feed |
US6226972B1 (en) * | 1997-12-10 | 2001-05-08 | Izumi International, Inc. | Twisted union yarn manufacturing method and device |
-
2003
- 2003-01-22 ES ES200300164A patent/ES2228239B1/en not_active Withdrawn - After Issue
-
2004
- 2004-01-22 WO PCT/ES2004/000028 patent/WO2004065673A1/en active Application Filing
- 2004-01-22 US US10/544,183 patent/US20060042221A1/en not_active Abandoned
- 2004-01-22 EP EP04704244A patent/EP1595983B1/en not_active Expired - Lifetime
- 2004-01-22 DE DE602004025906T patent/DE602004025906D1/en not_active Expired - Lifetime
- 2004-01-22 AT AT04704244T patent/ATE460515T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2004065673A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20060042221A1 (en) | 2006-03-02 |
ATE460515T1 (en) | 2010-03-15 |
ES2228239B1 (en) | 2007-08-16 |
DE602004025906D1 (en) | 2010-04-22 |
EP1595983B1 (en) | 2010-03-10 |
ES2228239A1 (en) | 2005-04-01 |
WO2004065673A1 (en) | 2004-08-05 |
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