EP1283918A1 - Procede et dispositif pour appliquer au moins une substance sur des fils en mouvement - Google Patents

Procede et dispositif pour appliquer au moins une substance sur des fils en mouvement

Info

Publication number
EP1283918A1
EP1283918A1 EP01953162A EP01953162A EP1283918A1 EP 1283918 A1 EP1283918 A1 EP 1283918A1 EP 01953162 A EP01953162 A EP 01953162A EP 01953162 A EP01953162 A EP 01953162A EP 1283918 A1 EP1283918 A1 EP 1283918A1
Authority
EP
European Patent Office
Prior art keywords
substance
threads
thread
pulses
speed
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.)
Withdrawn
Application number
EP01953162A
Other languages
German (de)
English (en)
Inventor
Henry Shaw
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Picanol NV
Original Assignee
Picanol NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Picanol NV filed Critical Picanol NV
Publication of EP1283918A1 publication Critical patent/EP1283918A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/24—Means for regulating the amount of treating material picked up by the textile material during its treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H71/00—Moistening, sizing, oiling, waxing, colouring or drying filamentary material as additional measures during package formation
    • B65H71/007—Oiling, waxing by applying liquid during spooling
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/02—Auxiliary apparatus combined with or associated with looms for treating warp, e.g. cleaning, moistening
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/04—Auxiliary apparatus combined with or associated with looms for treating weft
    • 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
    • D04B35/24—Devices for preparatory treatment of threads by moistening or lubricating
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
    • D05C11/24—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor incorporating devices for dyeing or impregnating the threads
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/26—Tufting machines with provision for producing patterns
    • D05C15/34—Tufting machines with provision for producing patterns by inserting loops of different nature or colour
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B11/00—Treatment of selected parts of textile materials, e.g. partial dyeing
    • D06B11/002—Treatment of selected parts of textile materials, e.g. partial dyeing of moving yarns
    • D06B11/0023—Treatment of selected parts of textile materials, e.g. partial dyeing of moving yarns by spraying or pouring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a method and a device for applying at least one substance to running threads in a textile machine.
  • the invention has for its object to provide a method of the type mentioned, in which the application of the substance to running threads is improved and in particular can be more precisely metered.
  • This object is achieved in that a quantity of the at least one substance to be dispensed per unit length of the threads is specified and in that the dispensed amount is changed when the speed and / or the tension of the running threads changes depending on these changes.
  • the invention makes it possible to apply a substance to the thread in any dosage, taking into account changes in the speed and / or the tension of the running threads. For example, it is possible in this way to apply the substance to the thread or threads in a completely uniform manner, for example an ink, a color or another substance, although the thread moves with changing speed.
  • the at least one substance is applied as successive pulses, the frequency and / or the amplitude of the pulses being changeable. Due to the application of the substance in the form of successive impulses, a quick reaction to changes in the speed and / or tension of the running threads is possible.
  • two or more complementary substances are applied to the same threads. It is advantageous if the application of the different substances can be changed independently of one another. For example, two color components can be applied that complement each other to the desired coloring of the threads. A uniform dyeing can be achieved, which is not dependent on the speed and / or the tension with which the thread or threads are transported.
  • the at least one substance is applied in the form of spray pulses. It is particularly advantageous if the pulses are formed piezoelectrically. The frequency and / or the amplitude of the spray pulses can be controlled or regulated in a simple manner.
  • a minimum value for the frequency of the pulses is determined as a function of the size of the spray jet and the speed of the threads. It is advantageous if the frequency of the pulses is greater than 500 kHz. For example, different substances can be on the same with a frequency of more than 500 kHz Thread to be applied. This makes it possible, for example, to evenly color a weft thread during weaving, with the help of different substances, each of which has a different color.
  • the object of the invention is also achieved with a device in which means are provided for dispensing the at least one substance, which are adjustable for dispensing the substance in a predetermined quantity per unit length of the running threads and for changing the dispensed quantity of the at least one substance in Depending on changes in speed and / or tension of the running threads are connected to a control unit.
  • FIG. 1 shows a schematic representation of a weaving machine with several devices according to the invention
  • FIG. 2 shows a schematic representation of a section of a device according to the invention
  • 3 is a diagram showing the changing application of a substance as a function of the speed of the running thread.
  • FIG. 4 shows a schematic representation of a weaving machine with devices according to the invention for applying a substance to weft threads
  • 5 shows a schematic representation of a weaving machine with devices according to the invention for applying one or more substances to warp threads
  • 6 shows a schematic representation of a warping machine with several devices according to the invention
  • FIG. 7 shows a schematic representation of an Axm inster carpet weaving machine with several devices according to the invention
  • FIG. 8 is a schematic representation of a knitting machine with several devices according to the invention.
  • Fig. 9 is a schematic representation of an embroidery machine with several devices according to the invention.
  • Fig. 10 is a schematic representation of a tufting machine with several devices according to the invention.
  • weft threads 2, 3 and 4 are each drawn from a bobbin set 5, 6, 7 by means of a prewinder 8, 9, 10 and via a thread tension meter 11 to needles 12, 13, 14 of a thread selection device 15 led an entry system 16.
  • the entry system contains a donor gripper 17 which takes over the weft thread 2 shown (illustration in FIG. 1) and transports it to the center of the shed, where it is taken over by a slave gripper 18 and transported to the opposite side.
  • Encoder gripper 17 and slave gripper 18 are driven by a drive motor of the weaving machine by means of a known drive system, not shown.
  • the weaving machine 1 also has a control unit 20 and an input unit 21 for inputting data into the control unit 20.
  • An encoder 22, which is assigned to the drive motor 19 and which detects the angular position of the drive motor 19 is also connected to the control unit 20.
  • the coil sets 5, 6, 7 are each held by means of a coil frame 23. 1 also shows a reed 24 and warp threads 25 and the fabric 26 formed from warp threads 25 and weft threads 2, 3, 4.
  • a device 27 for applying a substance to the weft threads 2, 3, 4 is arranged between the bobbin sets 5, 6, 7 and the associated prewinding devices 8, 9, 10.
  • the weft threads 2, 3, 4 move between the bobbin sets 5, 6, 7 and the prewinder 8, 9, 10 at variable speeds.
  • the pre-winding devices 8, 9, 10 each contain an angle arm 28 which is driven by a motor and which is controlled by the control unit 20.
  • the winding arm 28 pulls the respective weft thread from the bobbins 5, 6, 7, and winds it on a drum of the prewinder 8, 9, 10. Because of the weaving pattern and the interruptions occurring during weaving, the control unit 20 controls the winding arms 28 at variable speeds , This control of the wrap arms
  • control unit 20 determines the speed of the winding arm 28, it also has information about the speed of the winding arm 28 at all times.
  • a device 27 for applying one or more substances to a weft thread 2 is shown schematically in FIG. 2.
  • the device 27 has a plurality of nozzles 29 which open into a channel 30 in which a substance can be sprayed onto a running thread.
  • Each nozzle 29 is equipped with means controlled by the control unit 20 in order to dispense the substance in the form of spray pulses and to apply it to the weft thread 2.
  • these means contain a piezoelectric crystal 31, to which electrical voltage pulses are supplied in a controlled manner by the control unit 20. Movement impulses of the crystal become by means of the voltage impulses
  • the movement pulses generated by the voltage pulses cause a defined amount of the substance present in a channel 32 at the outlet of the nozzle
  • the substance can be a size, a color, an ink, a type of glue, a varnish, a wax, a lubricant, a rubber. Rubber material, a plastic, a hardener, a means for preparing the thread for coloring or any other means.
  • piezoelectric crystals 31 instead of piezoelectric crystals 31, one or more electromagnetically actuated pistons are provided, which are moved into and out of the channel 32 with a predeterminable frequency and amplitude by means of an electromagnet controlled by the control unit 20.
  • a piezoelectric crystal 31 has the advantage that it can be driven at frequencies in the megahertz range.
  • the control unit 20 takes into account the speed at which the weft thread 2 runs through the device 27. This can be done by determining the speed at which the winding arm 28 winds the thread 2 onto the prewinder 8. This speed can either be measured by means of an encoder attached to the winding arm 28, or it can be determined from the control signals supplied to the motor of the pre-winding device 8.
  • the substance is sprayed onto the thread 2 in the form of pulses by supplying the piezoelectric crystal 31 with voltage pulses from the control unit 20.
  • the pulse frequency is predetermined, for example, proportional to the speed at which the thread 2 runs through the device 27.
  • the supply of the substance per unit length of the thread can be determined such that the same amount of substance is always applied to the thread regardless of the speed of the thread 2.
  • Controlling the frequency of the pulses, by means of which the substance is sprayed onto the thread 2 as a function of the thread speed, has the advantage that, even with a changing thread speed, the same amount of substance is always applied to the weft thread 2 , In this case, an adjustment is made using the frequency of the pulses.
  • the amplitude of the pulses with which the crystal 31 is controlled can also be changed in a corresponding manner. This means that the fre- frequency of the impulses more or less substance are applied to the thread 2, depending on the change in the speed of the running thread.
  • substances A, B, C, D, E, F and G can be contained in the containers 34 of the device 27.
  • Substances A to C are, for example, inks in a basic color
  • substance D is white ink
  • substance E is black ink
  • substance F is an agent preparing the thread for dyeing
  • substance G is a varnish, a type of glue, a wax Lubricant, a rubber material, a plastic or another substance.
  • dyeing for example, a predetermined amount of ink A and a predetermined amount of ink B are applied together to give the thread a mixed color. In order to obtain a uniform mixed color, the amounts of ink A and ink B must be selected appropriately.
  • FIG. 3 shows a curve 35 for an ink A (or a dye A) and a curve 36 for an ink B (or a dye B) as the quantity Q over the thread speed S, in each of which a uniform mixed color is obtained.
  • relatively more dye B is required to uniformly dye a fast-running thread than to dye the same, but slow-running thread. This can be explained by the fact that the case may arise that a thread is more suitable for a faster absorption of dye A than for absorption of dye B.
  • a uniform mixed color can nevertheless be achieved if, for example, the amplitude of the pulses delivered Substance is controlled depending on the speed of the thread according to the curves shown in Fig. 3.
  • the amplitude can be influenced by expanding the piezoelectric crystal 31 more or less into the channel 32.
  • the frequency of the pulses can be the same for both dyes A and B and proportional to the thread speed.
  • the course of the curves 35 and 36 can be input into the control unit 20 via the input unit 21.
  • the method explained above can of course not only be used to obtain a uniform mixed color. It is readily possible to use the method in such a way that defined color gradations in the thread are obtained in a controlled manner.
  • both the frequency and the amplitudes of the pulses can be changed in a suitable manner. 1, three different weft threads 2, 3, 4 are used.
  • only one coil 5, 6 or 7 can be used. With different bobbins 5, 6 and 7, for example, a different thread type is provided, ie thicker or thinner threads or threads with different material properties.
  • the devices 27 according to the invention are arranged between the pre-winding devices 8, 9, 10 and the entry system 16.
  • the speed at which wefts 2, 3 or 4 are moved can be easily determined from the signals from encoder 22 and the known, but variable transmission ratio between the position of drive motor 19 and the position of drive motor 19 Grippers 17, 18 are derived.
  • the device 27 can then be controlled in a corresponding manner, as was explained above.
  • the thread tension of the weft threads 2, 3, 4 is additionally measured with the aid of the thread tension sensor 11. The tension within the weft threads 2, 3, 4 also influences the speed with which a dye is taken up in a thread.
  • the higher the tension in the thread the slower the absorption of dye.
  • the frequency and / or amplitudes of the substance applied by means of pulses can also be controlled depending on the thread tension.
  • the thread tension also depends on the speed at which the thread runs, so that the tension in the thread can also be taken as a parameter for the speed of the thread. According to a preferred Solution, both the thread speed and the thread tension are taken into account.
  • 3 also shows a curve 37 for the amount Q of dye A and the curve 38 for the amount Q of dye B, which are necessary in order to obtain a uniform mixed color at given yarn speeds when the tension in the yarn is lower than in curves 35 and 36.
  • the tension is determined, for example, by the resistance that the thread has to overcome when it is pulled off a bobbin. This resistance changes with the diameter of the coil, so that the control unit 20 can adapt the frequency and / or amplitude of the emitted pulses of the substance as the coil progresses.
  • the control unit 20 can also take into account signals from a sensor which, when the first coil is used up, detects a transition to the following supply coil and which then leads to an initialization of control parameters for the device 27 by the control unit 20.
  • Devices according to the invention can also be used in connection with air jet weaving machines in which weft threads are introduced into a shed with the aid of a main nozzle and a plurality of auxiliary blowing nozzles.
  • the speed of the weft threads can be measured when entering the shed.
  • the speed can also be measured with the help of sensors that detect the passage of the weft thread at certain points.
  • a sensor can be provided in the area of the pre-winding device, which measures the time period in which individual windings are removed from the pre-winding device.
  • a plurality of devices 40 according to the invention are provided in order to apply one or more substances to warp threads 25.
  • the warp threads 25 run over a match tree 42.
  • the devices 40 according to the invention are arranged between the match tree 42 and heald frames 41.
  • the finished fabric 26 is drawn off from a fabric tree 43, which determines the speed of the warp threads 25.
  • the movement of the reed 24 has an influence on the movement of the warp threads 25, especially when the reed 24 strikes weft threads on the fabric 26.
  • the speed of the warp threads 25 also varies in the area of the devices 40, while the weft threads are struck on the fabric 26 by means of the reed 24.
  • the warp threads 25 are stretched somewhat and briefly move faster towards the fabric 26, after which they move back in the direction of the match tree 42.
  • the speed at which the tissue 26 is removed can vary.
  • the tension of the warp threads 25 on the match tree 42 is usually measured.
  • the frequency and / or the amplitude of the substance released in the form of pulses is increased, taking into account the changes in speed and / or tension in the warp threads.
  • no substance is expediently applied to the warp threads 25.
  • the devices 40 correspond to the embodiment according to FIG. 2. However, two or more warp threads 25 can also be passed together through the channel 30 of the device 40, so that a substance is applied to each of these warp threads 25 at the same time.
  • FIG. 6 shows a warping machine which contains a plurality of devices 44 according to the invention.
  • This embodiment of a warping machine is particularly suitable for producing warp beams 45 in which warp threads 25 are colored differently.
  • the warp threads 25 can be drawn off from bobbins 47 of a bobbin frame 46, which are identical to one another.
  • Warp beams 45 with differently colored thread groups can nevertheless be obtained, the number of differently colored thread groups not being limited to the number of bobbins in the bobbin frame 46.
  • a simple control for the frequency and / or the amplitude of the substance applied as pulses can be provided, since the speed and tension in the warp threads 25 vary only relatively little.
  • the method according to the invention is particularly advantageous in order to dye the warp threads uniformly and thus to obtain a warp beam of high quality.
  • FIG. 7 shows an Axminster carpet weaving machine, in which pile threads 48 are woven into a carpet fabric between the base fabric formed from warp threads 25 and weft threads by means of a pile gripper 49.
  • the speed and tension of the pile threads 48 change rapidly. Since the speed of the entrainment by the pole gripper 49 is known relatively precisely, the method according to the invention can be applied in a simple manner.
  • a device 27 according to the invention is arranged in the region of each pile thread 48.
  • the frequency and / or the amplitude of the substance applied in pulses to the pile thread 48 is controlled during the entrainment of the pile threads 48, for example, so that pile threads 48 are obtained with a uniform color.
  • only a number of pile threads 48 can be used, which then do not have to be transferred to the pile gripper 49 via a selection device, but can be taken over directly by the pile gripper 49.
  • FIG. 8 shows a knitting machine or a knitting machine in which threads from bobbins 5, 6, 7 are guided to a knitting unit 53.
  • the threads 50 and 51 are already dyed, for example, so that only the weft thread 52 is dyed with the device 27 according to the invention.
  • the weft threads 50 to 52 are additionally subjected to a size in the devices 27.
  • FIG. 9 shows an embroidery machine with embroidery heads 54, which are also equipped with devices 27 according to the invention.
  • an embroidery machine it is advantageous to additionally apply a lubricant or varnish to the threads by means of a device 27 according to the invention.
  • FIG. 10 shows a tufting machine which is also equipped with devices 27 according to the invention.
  • this machine short thread ends are worked into a fabric 26 in a known manner by means of the tufting heads 55.
  • devices 27 according to the invention a substance is applied to the short thread ends in the manner already explained.
  • the frequency of the pulses with which the device 27 sprays a substance onto a thread is determined depending on the dimension in the longitudinal direction of the thread of a pulse beam and on the number of its length units that are transported through the device 27 per unit of time.
  • a frequency of 250 kHz is required.
  • a higher frequency of the pulses is advantageous. For weaving machines it is therefore advisable to use a frequency of more than 500 kHz.
  • an even higher frequency should advantageously be selected, for example a frequency of more than 2 MHz.
  • tests have shown that, in the case of thinner threads, it is advantageous to increase the frequency and to choose such that the distance between the substance application of two successive pulses is of the order of the thread thickness.
  • the invention is not restricted to the application of pulses of one or more substances depending on the thread speed and / or the thread tension.
  • the application in the form of pulses can also be made dependent on other thread properties, for example the thread moisture, the thread temperature, the diameter of the bobbin delivering the thread, the material properties of the thread, the material properties of the substance to be applied and other properties.
  • the invention particularly applies to the production of fabrics in which different colors are woven. With the help of the invention, undyed weft and / or warp threads can be assumed and still a colored one Tissues are created. Especially for weaving machines, this is not only economical because a relatively simple weaving machine can be used with only a few channels, but because weaving can also be carried out in small lots without relatively much waste of dyed threads, which is not easily reused afterwards can be.
  • the invention is not limited to its use in rapier weaving machines or air jet weaving machines. Rather, it can also be used with other weaving machines, in particular multi-phase weaving machines, weaving rotors, rapier protection machines, water jet machines, projectile weaving machines and other weaving machines.
  • the invention is also suitable for other textile machines that process several different threads. These include warp knitting machines, circular knitting machines, sewing machines, but also spinning machines and others.
  • the method according to the invention and the devices according to the invention also offer the advantage that they can be implemented after a few adjustments to an existing textile machine, for example only by adding a control unit and some holders for the device according to the invention.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention concerne un dispositif pour appliquer une substance sur des fils (2, 3, 4) dans une machine textile. Selon l'invention, la substance est appliquée par impulsions dont la fréquence et/ou l'amplitude sont commandées en fonction de la vitesse et/ou de la tension des fils (2, 3, 4) en mouvement.
EP01953162A 2000-05-25 2001-05-25 Procede et dispositif pour appliquer au moins une substance sur des fils en mouvement Withdrawn EP1283918A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE2000/0354A BE1013539A6 (nl) 2000-05-25 2000-05-25 Werkwijze en inrichting voor het aanbrengen van materie op een draad bij een textielmachine.
BE200000354 2000-05-25
PCT/EP2001/005993 WO2001090461A1 (fr) 2000-05-25 2001-05-25 Procede et dispositif pour appliquer au moins une substance sur des fils en mouvement

Publications (1)

Publication Number Publication Date
EP1283918A1 true EP1283918A1 (fr) 2003-02-19

Family

ID=3896549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01953162A Withdrawn EP1283918A1 (fr) 2000-05-25 2001-05-25 Procede et dispositif pour appliquer au moins une substance sur des fils en mouvement

Country Status (6)

Country Link
US (1) US20030135931A1 (fr)
EP (1) EP1283918A1 (fr)
CN (1) CN1430687A (fr)
AU (1) AU2001275674A1 (fr)
BE (1) BE1013539A6 (fr)
WO (1) WO2001090461A1 (fr)

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CN114934345A (zh) * 2022-07-02 2022-08-23 唐国勇 多经轴经线颜色打印纺织一体机

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WO2001090461A1 (fr) 2001-11-29
BE1013539A6 (nl) 2002-03-05
US20030135931A1 (en) 2003-07-24
AU2001275674A1 (en) 2001-12-03
CN1430687A (zh) 2003-07-16

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