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EP0489844B1 - Procede et dispositif pour vaporiser du fil - Google Patents

Procede et dispositif pour vaporiser du fil Download PDF

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Publication number
EP0489844B1
EP0489844B1 EP90913813A EP90913813A EP0489844B1 EP 0489844 B1 EP0489844 B1 EP 0489844B1 EP 90913813 A EP90913813 A EP 90913813A EP 90913813 A EP90913813 A EP 90913813A EP 0489844 B1 EP0489844 B1 EP 0489844B1
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EP
European Patent Office
Prior art keywords
bell
vacuum
vacuum bell
steam
temperature
Prior art date
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Expired - Lifetime
Application number
EP90913813A
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German (de)
English (en)
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EP0489844A1 (fr
Inventor
Ludwig Resch
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Individual
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Individual
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    • 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
    • D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
    • D06B5/12—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length
    • D06B5/16—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length through yarns, threads or filaments

Definitions

  • the present invention relates to a method for steaming yarn according to the preamble of claim 1 and a device for steaming yarn according to the preamble of claim 11.
  • the yarns are usually steamed to remove the curling tendency, steaming taking place at temperatures between approximately 50 and approximately 150 ° C.
  • the lower temperature range up to approx. 90 ° C is used more for wool yarns and the upper temperature range more for synthetic yarns.
  • the quality requirements for the steaming process are very high because of uneven Vapors, for example, create tension threads in the fabric or the absorption of colorants in a dyeing process becomes uneven.
  • Vacuum steaming has the advantage that there is less air in the system, which makes steaming more uniform.
  • the DE-Z provides an overview of vacuum steaming. "Melliand Textile Reports", Issue 5, 1966, pages 530-536.
  • the main disadvantage of steaming in an autoclave is that the largely continuous processing of yarn is interrupted by a time-consuming, discontinuous process.
  • the ring spinning process achieves a high output of spinning bobbins, which are tubes with a certain amount of yarn on each.
  • spinning bobbins are tubes with a certain amount of yarn on each.
  • they Before these spinning bobbins are now fed to a continuously operating winding machine, they have to be collected in appropriate yarn trolleys and inserted into the autoclave. Then they have to be transported to the winding machine.
  • the material flow required as a result not only requires extensive and complex devices, but also impairs the overall operating sequence of the spinning mill.
  • the autoclaves since the autoclaves usually have to accommodate several yarn trolleys because of the processing capacity required, their dimensions are very large and therefore expensive, space-consuming and very unfavorable in terms of energy expenditure.
  • DE-U 19 82 399 proposed a device in which steam is introduced into the interior of a perforated winding tube without the use of vacuum.
  • a further development of this method is described in DE-A 36 01 099.
  • this method allows the time and energy required for steaming to be reduced, it has the disadvantage that excessive condensation can occur here, which affects the uniformity of steaming.
  • Yarn cores specially prepared for the process are also required. Such yarn tubes are more complex to manufacture than simple, cylindrical yarn tubes.
  • the spinning mills are forced to replace their entire, expensive stock of bobbins using this method. The method has therefore not been able to establish itself in practice.
  • the present invention has for its object to provide a method for steaming yarn, by means of which a uniform steaming of the yarn is achieved with little expenditure of time and with little expenditure of energy. Furthermore, it is the object of the present invention to provide a device for steaming yarn, by means of which a uniform steaming of the yarn can be achieved with a low expenditure of energy and time and which requires only a small amount of space and construction.
  • the method according to the invention and the device according to the invention should work in such short cycles that they can be included in a continuous process of yarn processing.
  • the possibility is created for the first time of performing a cyclical steaming of yarn with saturated steam in a wide temperature range.
  • the evacuated vacuum bell is connected to a steam generator, in which water and saturated steam are enclosed at steam temperature and a pressure which essentially corresponds to the steam pressure of the water at the selected steam temperature, and the thermodynamic state variables in the vacuum bell are practically abruptly adapted to the State variables take place in the steam generator.
  • the amount of water that is required to fill the vacuum bell with saturated steam of the steam temperature and the steam pressure defined for the respective temperature is very quickly converted into saturated steam in the steam generator.
  • the steam generator and preferably also the vacuum bell are largely kept exactly at the steam temperature, the amount of energy required for the evaporation does not lead to a significant drop in the temperature level. Keeping the temperature level constant is made considerably easier by keeping the vacuum bell correspondingly small. Compensation is particularly easy if, according to a preferred embodiment, the vacuum bell only receives a single yarn package. Furthermore, a decrease in temperature is avoided by regulating the temperature of the steam generator and preferably also the vacuum bell, by means of which temperature reductions are immediately compensated for.
  • the sleeve and the yarn can, according to a preferred development of the invention, preferably be preheated by hot air before the vacuum bell is evacuated .
  • the vacuum bell is preferably ventilated after the steaming likewise with preheated hot air. This prevents an uneven temperature drop in the yarn.
  • the yarn is dried immediately after steaming. This can be done in the same bell in which the yarn was steamed. It is also possible to have a second one Provide vacuum bell that is used only for drying.
  • Drying is preferably carried out by evacuating the vacuum bell used for drying. Due to the then decreasing pressure in the bell, the vapor pressure of the water vapor on the yarn exceeds the ambient pressure, so that the majority of the vapor as superheated vapor is drawn off directly by the vacuum pump.
  • An evacuable condensation container is preferably provided, which is connected upstream of the vacuum pump. Cooling in the condensation container can ensure that the temperature prevailing there is below the temperature prevailing in the vacuum bell. Due to the thermodynamic laws, the steam from the vacuum bell then flows very quickly into the condensation container. The colder container thus acts like a powerful pump, through which the water vapor is drawn out of the vacuum bell.
  • the temperature of the condensation tank can be adapted to the desired vacuum end pressure.
  • a vacuum end pressure of 20 mbar roughly corresponds to a saturated steam temperature of 17 ° C.
  • the device according to the invention is characterized by a structure whose external dimensions are only a fraction of the dimensions of a conventional autoclave.
  • the device has a steam generator and at least one vacuum bell, which can be evacuated via a vacuum pump.
  • the internal dimensions of the vacuum bell are adapted to the space requirement of one or more yarn packages.
  • a corresponding one is used to regulate the temperature of the steam generator and / or the vacuum bell Control device is provided, which can preferably be combined with a control device which controls the entire sequence of the device.
  • This control device is connected to a large number of temperature and pressure sensors, which detect the state variables in the individual system parts.
  • the control device which preferably has an arithmetic processor, operates according to a predetermined program and outputs control signals in order to control a number of control valves which are required to connect the vacuum bell, the vacuum pump and the steam generator to one another in the predetermined clock sequence.
  • Another very important advantage of the device according to the invention is the extremely low energy consumption. Due to the small dimensions and the short cycle times, the energy consumption, based on one yarn unit, is e.g. on a spinning cop, only a fraction of the effort required for autoclave damping.
  • this is brought about by electrical heating wires which are integrated in the vacuum bell and to which so much electrical energy is supplied that the desired temperature is reached.
  • the heating of the vacuum bells is brought about by integrating heating pipes into the vacuum bells through which a liquid, preferably water, flows.
  • the heating pipes are in flow communication with the water in the steam generator, e.g. with the help of a small circulation pump. It is thereby achieved that the water of the steam generator, the temperature of which is regulated very precisely in relation to the steam generation, flows through the vacuum bell and keeps it at the same temperature.
  • This version has the advantage that a control device for temperature control of the vacuum bell can be omitted.
  • the same vacuum bell that is used for steaming is also used for drying. Drying takes place by connecting the vacuum bell to an evacuated vacuum container via a corresponding valve device, as a result of which the pressure in the vacuum bell drops rapidly. This removes moisture from the yarn package located in the vacuum bell.
  • the residual moisture that the yarn package in some applications requires for further processing can be determined beforehand within narrow limits by the choice of the negative pressure in the vacuum bell used for drying.
  • a different vacuum bell is used for drying the yarn package than for steaming.
  • the device has at least two vacuum bells which are operated in cycles, the The bobbin is first steamed in the first vacuum bell and then dried in the second vacuum bell.
  • the system further preferably has a hot air generator in which air is preheated to a predetermined temperature, which is preferably equal to the steaming temperature, in order to use it for preheating and venting the vacuum bell.
  • the device described above should preferably be set up for the cyclical processing of yarn packages.
  • the individual yarn packages are therefore placed on transport plates. This attachment can take place using handling devices known in the prior art, which are therefore not described in detail.
  • the transport plates slide in a slide rail which has a holding profile which corresponds to an inverted T, into which correspondingly designed parts of the plates engage.
  • the plates have pins provided with one or more through bores, onto which the bobbin can be placed directly, and are arranged in the slide rail during continuous processing so that they are immediately adjacent. When the rearmost plate is pushed further, all other plates are therefore automatically moved forward by the corresponding displacement path.
  • a damping bell and a drying bell are then located above the slide rail and can be raised and lowered by a pneumatic device. Also newly developed sealing measures ensure that the vacuum bells automatically when pressed onto the plate are sealed against this. At this point, holes are also provided in the slide rail, which are also automatically sealed when the vacuum bells are pressed on. Through the holes in the slide rail, the vacuum bell or vacuum bells are connected to the steam generator, etc.
  • the plates with the yarn packages on them thus slowly move through the steaming and drying system, the cycle time in one exemplary embodiment for steaming or drying being approximately 2 minutes.
  • the processing capacity is thus 30 bobbins per hour. If a larger processing capacity is required, several steaming and drying bells can be arranged in parallel.
  • the slide rail then has a corresponding branching, and the incoming stream of plates with yarn packages is divided, for example, into four individual slide rails. With ten bells arranged parallel to one another, a processing capacity of 300 yarn packages per hour can then be achieved, which should be sufficient for most applications, but can be increased without problems by further parallel arrangements.
  • the bells arranged in parallel are raised and lowered by a common device.
  • the slideways of the plates which is described in detail in the subclaims and with reference to the figures, the cyclical steaming can then be carried out with very little space.
  • the device according to the invention can be designed so that it is suitable for any type of yarn package.
  • textile containers under the package to understand. These textile containers are usually produced by winding a textile yarn on sleeves, which consist, for example, of metal or plastic or the like.
  • sleeves which consist, for example, of metal or plastic or the like.
  • other container shapes are also conceivable. Experiments have shown that the method according to the invention works without problems even when yarn packages are used which have a high weight and / or large dimensions.
  • the interior of the vacuum bell is preferably also cylindrical.
  • the previous discontinuous steaming in an autoclave with all of its material flow problems is converted into a continuous process. Since the device is much smaller in size than an autoclave, the device can e.g. be arranged directly between a ring spinning machine and a subsequent winding machine.
  • the embodiment is designed for steaming yarn that comes from ring spinning machines and is wound on cylindrical metal sleeves or plastic sleeves.
  • the device can of course also be used in the same way for all other types of yarns and yarn packages.
  • the yarn 1 schematically indicated in the drawing is on a cylindrical sleeve 2 made of plastic wound up, whereby a spinning cop 3 is formed.
  • the spinning cop 3 is transported through the device with a plate 5, wherein it remains on this plate 5 even during the damping and drying process.
  • the plate 5 is essentially rotationally symmetrical about an axis 6 and has a conical section 7 which is delimited at the top (ie towards the spinning cop) and at the bottom by a flat annular surface 8 or 9. Below this conical section there is a first cylindrical section 10 with a smaller diameter and then a second cylindrical section 11 with a larger diameter.
  • a cylindrical pin 12 is arranged on the upper circular ring surface 8 and has a bevel 12a at its upper end (facing the spinning cop).
  • the outer diameter of the cylindrical pin 12 is slightly smaller than the inner diameter of the sleeve 2, so that the sleeve 2 can be pushed onto the pin 12 and is held by the latter.
  • a cylindrical bore 13 arranged coaxially to the axis 6 runs through the plate 5, the purpose of which will be explained in detail below.
  • the lower annular surface 9 also has a cylindrical extension 14.
  • the plate is made of metal, preferably aluminum.
  • the plate 5 is displaceably arranged in a slide rail 20, which is only shown in part in FIG. 1.
  • the slide rail 20 has a guide groove 21 which extends essentially perpendicular to the plane of the drawing in FIG. 1.
  • the guide groove 21 consists of an upper, narrower region 22 and a lower, further region 23.
  • the guide groove 21 thus has the shape of an upside-down T in cross section.
  • a cylindrical Bore 24 arranged, the function of which will be explained later.
  • a recess 25 is provided, the width of which is slightly larger than the diameter of the cylindrical extension 14 of the plate 5.
  • the spring body 26 consist of a cylindrical hollow body 27, in the interior of which a spiral compression spring is arranged.
  • the hollow body 27 is closed at its upper end with a flange 29, the diameter of which is slightly larger than the outer diameter of the hollow body 27.
  • the spring body 26 is pressed into a cylindrical bore 28 in the slide rail 20 and is axially connected to the flange 29 by the flange 29 Fixed slide rail.
  • a ball 30 is also provided, which is pressed upwards by the spring. If the spring body 26 is loaded with a predetermined load, the ball 30 is inserted into the hollow body 27.
  • An annular sealing groove 32 is also provided concentrically with the cylindrical bore 24 of the slide rail. A commercially available O-ring 33 is embedded in this sealing groove 32.
  • the bell 35 has a substantially cylindrical metal body 36 which is closed at the bottom by a flange 37. On the flange 37, an upward-pointing cylindrical web 38 is arranged concentrically to the longitudinal axis 39 of the bell.
  • the cylindrical metal body 36 of the bell is closed at the top by an arched cover 41 formed integrally therewith.
  • Two threaded connectors 42 and 43 are arranged in the cover 41, offset with respect to the longitudinal axis 39 of the bell.
  • a pressure sensor 44 is screwed into the first, shorter threaded connector 42 and a temperature sensor 45 in the second, longer threaded connector 43.
  • the cylindrical metal body 36 of the bell is surrounded by a heating wire 55. Furthermore, the bell has an insulation 56 which is intended to largely prevent heat transfer from the cylindrical metal body 36 to the ambient air.
  • the bell can be raised and lowered along its longitudinal axis 39 by a pneumatic cylinder.
  • the bell is initially in the raised state, and the spinning cop 3 located on the plate 5 is brought into a position in which the bore 13 of the plate 5 lies above the bore 24 in the slide rail 20.
  • the bell is then lowered and pressed onto the plate 5.
  • the contact pressure of the bell 5 is transmitted to the spring body 26, whereby the balls 30 are pressed into the hollow body 27 thereof.
  • the second cylindrical section 11 of the cylinder 5 lies firmly on the first O-ring 33.
  • the second O-ring 58 simultaneously seals the flange 36 of the bell from the plate 5, so that the bell is connected to the bore 24 in an airtight or vapor-tight manner.
  • the spring body 26 causes the plate 5 to be pushed onto the O-ring 33 at a vertical distance from the latter. This prevents damage to the O-ring 33 when the plate 5 is pushed. If the plate 5 is not in the position shown in FIG. 1, the cylindrical extension 14 of the plate lies directly on the Slide on. As a result, any wear when the plate 5 slides is limited only to the area between the cylindrical extension and the slide rail.
  • the lower circular ring surface 9 itself and the upper circular ring surface 8, which should keep their original state as far as possible with regard to the sealing or the contact with the spring bodies, are not changed by wear.
  • FIG. 2 shows a functional diagram of the device for steaming yarn according to the invention.
  • a bell 36 is used as the first bell 71 for steaming, and a bell 36 as the second bell 72 for drying.
  • the structure of both bells is identical and corresponds to that of bell 36 described with reference to FIG. 1.
  • the device has a steam generator 73, a condenser 74 and a hot air generator 75.
  • the first bell 71, the second bell 72, the steam generator 73, the condenser 74 and the hot air generator 75 are each designed to withstand both a high negative pressure (up to 20 mbar absolute pressure) and a higher positive pressure (up to about 5 withstand absolute pressure).
  • the upper design value of the system is essentially determined by the maximum treatment temperature of the yarn. If, for example, only a temperature of 120 ° C is to be achieved, a maximum pressure of 2 bar absolute (corresponding to the steam pressure of the water at 120 ° C) is sufficient, only temperatures below 100 ° C used, the system only has to be dimensioned in relation to the necessary negative pressure.
  • the steam generator 73 is essentially designed as a cylindrical container which is sealed in a pressure-tight manner and which is insulated against heat loss via its outer surfaces.
  • the steam generator 73 is connected via a feed pump 76 and a valve 77 to a water supply network shown schematically at 78.
  • the volume flow of the pump, which operates as required, is fed to the steam generator 73 via a line 79.
  • the steam generator also has a heating element or heating coil 80, by means of which the water in the steam generator can be heated.
  • the water level of the steam generator is monitored by a fill level sensor 81, the pressure by a pressure sensor 82 and the temperature by a temperature sensor 83.
  • the steam generator 73 is connected to the other system parts via a line 87 which is arranged at its uppermost end.
  • the condenser 74 also has a substantially cylindrical body which is sealed pressure-tight and which has an external insulation to reduce the heat transfer to the environment.
  • the condenser 73 is connected to a vacuum pump 92 via a line 91.
  • a cooling device 93 is provided which cools a cooling medium which flows through feed lines 94, 95 into a schematically indicated cooling spiral 96 within the condenser 74.
  • a drain line 97 with a valve 98 is provided on the underside of the condenser 74.
  • the condenser is connected via a line 100 both to the steam supply device for the damping bell 71 and to the steam generator 73, a plurality of valves being provided through which these connections can be controlled and regulated in detail.
  • the hot air generator 75 is also designed to be pressure-resistant and thermally insulated from the environment by means of insulation.
  • a heating coil 106 is provided to heat the air in the hot air generator.
  • the line system for connecting the various devices of the damping system essentially has three main lines, namely a first main line 111, a second main line 112 and a third main line 113.
  • the main lines 111 and 113 are connected to the line 87 of the steam generator 74.
  • the main line 111 is also connected to the hot air generator 75 via corresponding valves, as explained below.
  • the second main line 112 is open at one end to the environment and is connected at its other end to the main line 111 in front of the hot air generator 75.
  • the third main line 113 is also connected to the line 87 coming from the steam generator 73 and is connected on the other side to the line 100 leading to the condenser 74.
  • the first main line 111 and the second main line 112 are connected to one another via a connecting piece 115, which continues to lead to the bore 24 of the slide rail in the region of the damping bell 71.
  • the main line 111 is also connected via a line 117 to the bore 24 'of the slide rail in the area of the drying bell 72, this line on the the other side is open to the environment via a valve 118.
  • the operation of the device is controlled and regulated by a control unit 130.
  • the control unit 130 a process computer which e.g. can be constructed on the basis of one of the known microprocessors, receives the signals from all sensors and gives the control signals with which the heating of the bells 71, 72, the steam generator 73 and the hot air generator 75 and the cooling of the condenser 74 is controlled - or control signals for all valves and the control signals for the movement control of the plate 5.
  • the entire control and regulation takes place via a program stored in the control unit 130.
  • An operator can set the desired control parameters, i.e. above all, the temperature at which steaming is to be carried out using a suitable data medium, e.g. insert a floppy disk, a tape, a punched tape or a keyboard into the control unit.
  • the entire function of the system is controlled by the control device 130.
  • the data required for steaming ie essentially the steaming temperature and steaming times, are either predefined in the control unit or, as described, are read into the control unit before starting.
  • the operation of the system begins with a preheating cycle in which the temperature of the bells and the temperature of the steam generator etc. are brought to the predetermined steam temperature. This heating process also causes the water in the steam generator 73 to reach the desired level Temperature heated.
  • the condenser is evacuated to an absolute pressure of approx. 20 mbar via the vacuum pump 92.
  • the absolute pressure of 20 mbar corresponds to the vapor pressure of water at around 17 ° C. Since the usual steam temperatures are significantly higher, this ensures that the saturated steam pressure of the water used for steaming is always above this value. E.g. used to steam wool yarn a temperature of 80 ° C, the steam pressure of the water is 473 mbar.
  • a valve 141 in the main line 113 is briefly opened so that the steam generator (still under normal pressure) and the condenser (with 20 mbar absolute pressure) are connected to one another.
  • the absolute pressure of the system drops to a value that is initially far below 473 mbar. Since the steam pressure of the water at 80 ° C is above this pressure value now prevailing in the steam generator, so much water is practically converted into steam that the saturated steam pressure of 473 mbar is established.
  • the prerequisite for this is that the temperature level in the entire system is kept at 80 ° C. As already stated above, this is achieved in that all essential parts of the system are constantly kept at this temperature.
  • the steam generator 73 now contains water at 80 ° C. and steam at 80 ° C. at a pressure of 473 mbar.
  • the first spinning cop 3 can be conveyed on the plate 5 via the slide rail 20 under the steaming bell 71.
  • the pneumatic actuating devices of the steam bell lower the steam bell and press it onto the plate 5.
  • the balls 30 are pressed into the hollow body 27 of the spring body 26, and a tight seal between the bell and plate and plate and slide rail is achieved via the O-ring seals 33 and 58.
  • a valve 142 in the first main line 111 is then opened, as a result of which the interior of the steam bell is connected to the condenser 74 via the bore 24.
  • the damping bell 71 is constantly kept at this temperature by the heating systems and by the temperature sensors.
  • the saturated steam enters the bell 71 through the bore 24 and the hollow sleeve 2.
  • the sleeve 2 of the spinning cop 3 which is shown in the figure, is not perforated. Rather, the steam enters the bell bell 71 on the upper open side of the sleeve.
  • the sleeve can be preheated by briefly opening a valve 146 to the hot air generator before the bell 71 is evacuated.
  • hot air flows into the damping bell via the main line 112 and heats the sleeve and the yarn. Since the supplied hot air is kept at the temperature level of the saturated steam temperature, i.e. in the example at 80 ° C, the hot air supply does not cause overheating. This effectively prevents the condensation of the steam in a sleeve that is too cold.
  • valve 146 is opened again and the steaming bell is thereby ventilated with hot air. Since the hot air is at the same temperature as the steam temperature, there is no re-steaming. Then the bell 71 is raised and the spinning head is conveyed further with the transport plate 5 and comes into a position under the drying bell 72. The drying bell 72 is moved up and down simultaneously with the damping bell and is sealed off from the slide rail in the same way as in the case of the Damping bell 71 is the case. The spinning head is in the closed drying bell after the next lowering process. As soon as the evacuation of the damping bell 71 has ended, a valve 148 is opened while at the same time the valve 142 is closed.
  • the drying bell 72 is connected to the condenser 74.
  • the steam is now pumped out via the vacuum pump 92.
  • the drying bell is heated via its heating system so that the evaporation does not lead to an inadmissible temperature reduction.
  • the drying time is approximately 2 minutes in order to achieve a desired, uniform and reproducible residual moisture in the yarn, which enables the yarn to be processed immediately.
  • both bells are raised again, and the previously steamed amount of yarn is transferred to the drying bell, while the dried amount of yarn is processed, e.g. can be fed to a winding machine.
  • FIG. 3 schematically shows a conveyor belt 200, as is known in the prior art, in order to convey spinning bobbins or similar yarn packages.
  • the conveyor belt 200 which is deflected via a roller 201, has pins 202 on which the spinning heads 3 are placed.
  • a total of four rows of vacuum bells can be seen in a sectional representation, a first row 207, a second row 208, one third row 210 and fourth row 211.
  • Rows 207, 208 are bells used for steaming, while rows 210, 211 contain bells used for drying.
  • a total of five damping bells 209 and a total of five drying bells 212 are arranged in each row.
  • a second conveyor belt 205 is provided, which is designed in the same way as the conveyor belt 200.
  • a slide rail system 220 is arranged in the central area of the device, which in the exemplary embodiment shown consists of five transverse slide rails 221, 222, 223, 224 and 225 and four longitudinal slide rails 231, 232, 233 and 234 as well consists of two curved slide rails 235, 236, the curved slide rails connecting the longitudinal slide rails 231, 232 to the longitudinal slide rails 233, 234.
  • the slide rails are all designed as has been explained with reference to FIG. 1. Plates move on the slide rails, as were also explained with reference number 5 with reference to FIG. 1.
  • a handling device (not shown), which is known in the prior art, converts the spinning heads conveyed by the conveyor belt 200 onto the plates 5. 4 with respect to the first four plates, which are located on the slide rails 231 and 232, this process has already been completed.
  • the fully steamed and dried spinning cops which are located on the slide rails 233, 234, are placed on the conveyor belt 205 by means of a corresponding handling device.
  • the plates 5 are moved on the two slide rails by one plate division (this is the diameter of a plate) in the direction of the slide rails 231, 232.
  • the sliding device 240 consists of a transversely arranged rod 241 which can be moved towards and away from the slide rails via a double-acting cylinder 242 (pneumatically or electrically operated).
  • the control device outputs a signal and the steam bells and the drying bells are lifted off.
  • the slide device 240 pushes all the plates on the slide rails 221, 222, 223, 224 and 225 by two plate divisions to the left. As a result, these ten plates are pushed under the vacuum bells 207, 208 used for damping.
  • the plates previously located under the steam bells are shifted to the left by two plate divisions (in FIG. 4), so that they are now under the drying bells.
  • the plates previously located under the drying bells are pushed onto the slide rails 233, 234. The steaming and drying bells are then lowered and the steaming and drying process begins.
  • the finished ones on the slide rails 233, 234 are finished Spinning heads removed from the plates and unprocessed spinning heads placed on the plates conveyed on the slide rails 231, 232.
  • the steaming process is complete, and the steaming bells and the drying bells are raised again and the now steamed heads are pushed under the drying bells.
  • the newly filled plates are pushed under the steaming bells and the bells are lowered again.
  • the drying process is complete and the plates are then pushed out on the slide rails 233, 234 in the next cycle, where the spinning heads are removed.
  • a total of ten spinning bobbins are processed with a cycle time of two minutes, which results in a total capacity of the plant of 300 spinning bobbins per hour.
  • Each spinning cop is located (maximum) eight minutes in the area of the device.
  • FIG. 5 shows a detail of the device according to FIGS. 3 and 4, namely the mechanism for raising and lowering the bells.
  • the slide rails 231 etc. are arranged at a distance above a floor surface.
  • two cylinders 250, 251 which have extendable piston rods 252, 253.
  • Parallel to the arrangement of the slide rails is a support device 254, which is fixedly connected to the piston rods 252, 253 and is arranged essentially horizontally.
  • the twenty vacuum bells are attached to this support device 254, as can be seen in the top view of FIG. 4.
  • Fig. 6 shows a further detail of the device, namely the mechanism for moving the plates.
  • the plates have, as has been explained with reference to FIG. 1, a bore 13 through which, for example, during the damping of the Steam is supplied. This hole is also used to move the plates.
  • a longitudinal cylinder 260 is provided, which is arranged horizontally and parallel to the slide rail 234.
  • a short-stroke cylinder 261 is arranged with its piston rod 262 perpendicular to the direction of displacement of the longitudinal cylinder 260.
  • the short-stroke cylinder 261 is now actuated to move the plates, so that its piston rod 262 engages in the bore 24 of the spinning cop 3.
  • the plate is then moved on by one plate division, whereby at the same time all other plates abutting this plate are also moved.
  • Fig. 7 shows a top view of the transport device according to Fig. 6. It can be seen that e.g. the slide rail 234 has a longitudinal slot 270 in the drive area, into which the piston rod 262 of the short-stroke cylinder 261 engages. The longitudinal slot allows the piston rod to move in the slide rail in the desired manner.
  • the vacuum bell 280 is essentially eight-shaped, ie it has two mutually merging inner wall surfaces, each with a circular cylindrical diameter.
  • the axes of two spinning heads 3 are arranged coaxially to each of these circular cylinder cross sections.
  • two spinnerets can therefore be accommodated per vacuum bell, although the total volume of the vacuum bell is still very small in relation to the number of spinnerets introduced, and an exact alignment of the position of the spinnerets to one another and of the spinnerets to the inner wall of the vacuum bell is also provided.
  • reproducible damping of the yarn is also possible with this device.
  • the embodiment described above is installed between a ring spinning machine and a winding machine.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

Procédé et dispositif pour le fixage de fil textile (1) à enrouler sur des bobines, au moyen d'une cloche à vide (36) chauffable eet se prêtant au vide, et qui peut abriter une ou un faible nombre de bobines. De l'eau et de la vapeur saturée sont contenues dans un générateur de vapeur à une température égale à ou légèrement supérieure à la température présélectionnée de la vapeur et à une pression égale à la pression de la vapeur à la température de vaporisation. On réalise le vide dans la cloche renfermant les bobines à une pression sensiblement inférieure à la pression de la vapeur. Une soupape de commande dans une conduite de raccordement entre la cloche à vide et le générateur de vapeur est alors ouverte. Puisque la cloche à vide est également préchauffée à sensiblement la température de vaporisation, la quantité d'eau nécessaire pour remplir la totalité du système de vapeur saturée à la température de vaporisation est très rapidement transformée en vapeur dans le générateur de vapeur. Le fil est ainsi vaporisé par cycles d'une durée approximative de deux minutes.

Claims (32)

  1. Procédé pour fixer au moyen de vapeur saturée, à une température de traitement prédéterminée, des filés textiles enroulés en bobines, procédé dans lequel on utilise une cloche à vide chauffée, destinée à recevoir le filé textile, à l'intérieur de laquelle le vide est réalisé au moyen d'une pompe à vide, et un générateur de vapeur, caractérisé par les étapes suivantes:
    - on préchauffe le générateur de vapeur et une quantité d'eau se trouvant à l'intérieur de celui-ci à une température qui correspond à la température de traitement à la vapeur choisie ou est légèrement supérieure à celle-ci,
    - on fait le vide dans le générateur de vapeur jusqu'à obtentuin d'une pression absolue qui correspond sensiblement à la tension de vapeur de l'eau à la température de traitement à la vapeur sélectionnée,
    - on introduit une bobine de filé ou un petit nombre de bobines de filé avec une disposition dans l'espace prédéterminée par rapport à la paroi intérieure de la cloche à vide et, dans le cas de plusieurs bobines de filé, également des bobines entre elles,
    - on fait le vide à l'intérieur de la cloche à vide jusqu'à une pression absolue qui est nettement inférieure à la tension de vapeur de l'eau à la température de traitement à la vapeur présélectionnée,
    - on ouvre une vanne dans une conduite de liaison entre le générateur de vapeur et la cloche à vide,
    - on traite le filé au moyen de la vapeur saturée qui entre dans la cloche à vide,
    - on ventile la cloche à vide,
    - on sort la ou les bobine(s) de filé.
  2. Procédé selon la revendication 1, caractérisé par le fait que l'on préchauffe également la cloche à vide à une température qui est sensiblement égale à la température de traitement à la vapeur présélectionnée.
  3. Procédé selon l'une au moins des revendications 1 à 2, caractérisé par le fait que la ventilation de la cloche à vide après le traitement à la vapeur est effectuée à l'air chaud.
  4. Procédé selon l'une au moins des revendications 1 à 3, caractérisé par le fait que l'on sèche le filé après traitement à la vapeur.
  5. Procédé selon la revendication 4, caractérisé par le fait que le séchage du filé est effectué sous vide dans une cloche à vide.
  6. Procédé selon la revendication 5, caractérisé par le fait que, pendant l'opération de séchage, le volume intérieur de la chambre à vide servant au séchage est relié au volume intérieur d'une cuve de condensation refroidie à l'intérieur de laquelle on peut faire le vide par l'intermédiaire d'une conduite de liaison qui peut être interrompue.
  7. Procédé selon l'une au moins des revendications 1 à 6, caractérisé par le fait que l'on utilise la même cloche pour le traitement à la vapeur et le séchage.
  8. Procédé selon l'une au moins des revendications 5 ou 6, caractérisé par le fait que le traitement à la vapeur est réalisé par cycle en utilisant au moins deux cloches à vide, la bobine de filé étant tout d'abord traitée à la vapeur dans la première cloche puis amenée dans la deuxième cloche et séchée.
  9. Procédé selon l'une au moins des revendications 1 à 8, caractérisé par le fait qu'à chaque cycle de traitement à la vapeur et à chaque cycle de séchage, une bobine de filé est admise dans une cloche.
  10. Procédé selon l'une au moins des revendications 1 à 9, caractérisé par le fait que le temps de séjour de la ou des bobine(s) de filé dans la cloche de traitement à la vapeur et/ou le temps de séjour des bobines de filé dans la cloche de séchage est inférieur à 300 secondes, de préférence inférieur à 150 secondes.
  11. Dispositif pour fixer au moyen de vapeur saturée, à une température de traitement prédéterminée, des filés textiles enroulés en bobines, comportant une cloche à vide chauffée, destinée à recevoir le filé textile, à l'intérieur de laquelle le vide est réalisé, et un générateur de vapeur chauffé, résistant à la pression, caractérisé par le fait que les dimensions intérieures de la cloche à vide (36, 71) sont adaptées à l'encombrement d'une bobine ou d'un petit nombre de bobines de filé,
       par le fait qu'il est prévu un dispositif de chauffage avec un dispositif de régulation de température qui maintient une quantité d'eau se trouvant à l'intérieur du générateur de vapeur à un niveau de température qui correspond sensiblement à la température de traitement à la vapeur,
       par le fait qu'il est prévu un dispositif de régulation de pression qui, au moyen d'une pompe à vide, régule la pression à l'intérieur du générateur de vapeur à une valeur qui correspond sensiblement à la tension de vapeur de l'eau à la température de traitement présélectionnée,
       par le fait qu'il est prévu au moins trois vannes de commande, une première vanne étant disposée dans une conduite de liaison entre la pompe à vide et une cloche à vide, une deuxième vanne étant prévue dans une conduite de liaison entre la cloche à vide et le générateur de vapeur et une troisième vanne étant prévue dans une conduite de ventilation de la cloche à vide,
       par le fait qu'il est prévu en outre un dispositif de commande qui commande les vannes et agit de manière telle que la première vanne de commande soit ouverte tandis que les deuxième et troisième vannes sont fermées, puis que la deuxième vanne de commande s'ouvre tandis que les première et troisième vannes sont fermées et que la troisième vanne de commande s'ouvre tandis que les première et deuxième vannes sont fermées.
  12. Dispositif selon la revendication 11, caractérisé par le fait que des capteurs pour la mesure de la pression et de la température sont disposés dans la cloche à vide et dans le générateur de pression et par le fait que le dispositif de commande ouvre et ferme les vannes de commande conformément à un cycle prédéterminé en tenant compte des températures et pressions mesurées.
  13. Dispositif selon la revendication 12, caractérisé par le fait que le dispositif de commande délivre des signaux de sortie qui provoquent la régulation de la température et la régulation de la pression du générateur de vapeur et/ou de la cloche à vide.
  14. Dispositif selon l'une au moins des revendications 11 à 13, caractérisé par le fait qu'il est prévu entre la pompe à vide et la cloche à vide, une cuve à l'intérieur de laquelle on peut faire le vide et qui est connectée à la cloche à vide par l'intermédiaire de la première vanne de commande.
  15. Dispositif selon la revendication 14, caractérisé par le fait que la cuve à l'intérieur de laquelle on peut faire le vide est agencé sous la forme d'un condenseur et comporte un dispositif de refroidissement ainsi qu'une vanne de purge d'eau disposée dans sa partie inférieure.
  16. Dispositif selon l'une au moins des revendications 11 à 15, caractérisé par le fait qu'il est prévu une cuve chauffée qui sert à produire de l'air chaud et est reliée à la troisième vanne de commande par l'intermédiaire d'une conduite de liaison.
  17. Dispositif selon l'une au moins des revendications 1 à 16, caractérisé par le fait qu'il est prévu au moins une deuxième cloche à vide à l'intérieur de laquelle le filé traité à la vapeur est séché.
  18. Dispositif selon la revendication 17 ou l'une des revendications 14 ou 15, caractérisé par le fait que la cloche à vide servant au séchage est reliée à la cuve à l'intérieur de laquelle on peut faire le vide par l'intermédiaire d'une conduite de liaison et d'une quatrième vanne de commande.
  19. Dispositif selon l'une au moins des revendications 11 à 16 ou 18, caractérisé par le fait que l'on utilise également pour le séchage la cloche à vide utilisée pour le traitement à la vapeur.
  20. Dispositif selon l'une au moins des revendications 11 à 19, caractérisé par le fait que chaque cloche à vide est agencée de manière à recevoir une seule bobine de filé.
  21. Dispositif selon la revendication 20, caractérisé par le fait que la cloche à vide et/ou la cloche de séchage sont agencées sous forme de corps cylindriques avec une chambre intérieure sensiblement cylindrique et par le fait qu'il est prévu un dispositif support au moyen duquel la bobine de filé est tenue sensiblement coaxiale à l'axe du cylindre de la cuve.
  22. Dispositif selon la revendication 21, caractérisé par le fait que le dispositif support est agencé sous forme de plateau de transport (5) qui comporte un axe sensiblement vertical en position d'utilisation, qui est pourvu d'un ou plusieurs perçages débouchants et dont le diamètre extérieur est adapté au diamètre intérieur d'un noyau (2) sur lequel le filé textile est bobiné.
  23. Dispositif selon l'une au moins des revendications 11 à 22, caractérisé par le fait que chaque cloche à vide peut être levée et abaissée.
  24. Dispositif selon la revendication 23 ou la revendication 22, caractérisé par le fait que le plateau de transport recevant la bobine de filé peut se déplacer sur un rail (20) et par le fait qu'il est prévu des moyens d'étanchéité qui assurent l'étanchéité entre le plateau et la cloche à vide lorsqu'on abaisse la cloche à vide sur le plateau.
  25. Dispositif selon la revendication 24, caractérisé par le fait que le rail comporte un perçage qui est connecté au(x) perçage(s) de l'axe du plateau lorsque le plateau occupe une position prédéterminée sous la cloche à vide.
  26. Dispositif selon la revendication 25, caractérisé par le fait que des éléments élastiques sont disposés dans le rail ou dans le plateau de transport, lesquels éléments maintiennent le plateau à une distance prédéterminée au-dessus du rail et par le fait qu'il est prévu entre le perçage d'entrée du rail et l'intérieur de l'axe du plateau un joint qui assure la fermeture lorsque la cloche à vide presse le plateau sur le rail à l'encontre de la force de l'élément élastique.
  27. Dispositif selon l'une au moins des revendications 11 à 26, caractérisé par le fait qu'il est prévu une pluralité de cloches à vide qui sont reliées entre elles par un dispositif porteur commun et sont abaissées et levées simultanément.
  28. Dispositif selon l'une au moins des revendications 24 à 27, caractérisé par le fait qu'au moins deux rails sont disposés parallèlement l'un à l'autre.
  29. Dispositif selon l'une au moins des revendications 24 à 28, caractérisé par le fait qu'il est prévu un système de rails de glissement qui comporte une première zone dans laquelle les bobines de filé sont placées sur des plateaux de transport, une deuxième zone dans laquelle les bobines de filé sont traitées à la vapeur et éventuellement séchées dans la ou les cloche(s) à vide, une troisième zone dans la quelle les bobines de filé sont extraites des plateaux de transport et une quatrième zone dans laquelle les plateaux de transport sont ramenés de la troisième zone vers la première zone du système de rails de transport.
  30. Dispositif selon l'une au moins des revendications 11 à 29, caractérisé par le fait qu'il est prévu un dispositif pour chauffer la ou les cloche(s) à vide.
  31. Dispositif selon la revendication 30, caractérisé par le fait que la ou les cloche(s) à vide est (sont) chauffée(s) au moyen d'un dispositif de chauffage électrique qui est placé à l'intérieur de la cloche et régulé par le dispositif de commande.
  32. Dispositif selon la revendication 30, caractérisé par le fait que la ou les cloche(s) à vide est (sont) chauffée(s) au moyen de tubes de chauffage à circulation d'eau placés à l'intérieur de la cloche, les tubes étant en communication d'écoulement avec l'eau qui se trouve à l'intérieur du générateur de vapeur.
EP90913813A 1989-08-30 1990-08-29 Procede et dispositif pour vaporiser du fil Expired - Lifetime EP0489844B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3928763 1989-08-30
DE3928763A DE3928763A1 (de) 1989-08-30 1989-08-30 Verfahren und vorrichtung zum daempfen von garn

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EP0489844A1 EP0489844A1 (fr) 1992-06-17
EP0489844B1 true EP0489844B1 (fr) 1993-10-27

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JP (1) JPH05500244A (fr)
AU (1) AU6405590A (fr)
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WO (1) WO1991003588A1 (fr)

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CH687282B5 (de) * 1992-06-06 1997-05-15 Rieter Ag Maschf Verfahren und Vorrichtung zum Konditionieren von Kopsen.
JP2551310B2 (ja) * 1992-11-13 1996-11-06 村田機械株式会社 スチームセット装置
US5269052A (en) * 1992-11-10 1993-12-14 Tns Mills, Inc. Yarn conditioning process
JPH0789673A (ja) * 1993-09-22 1995-04-04 Murata Mach Ltd スチーム処理装置
DE69508368T2 (de) * 1994-07-13 1999-11-04 Tns Mills, Inc. Verfahren und vorrichtung zum konditionieren von garn
DE19743792A1 (de) * 1997-10-02 1999-04-08 Spindelfabrik Neudorf Gmbh Vorrichtung zum Fixieren von auf Wickelkörpern befindlichen Garnen und Zwirnen
DE102007024205B4 (de) * 2007-05-24 2015-01-08 Xorella Ag Verfahren und Vorrichtung zur Wärmebehandlung von Textilgut
DE102008034840A1 (de) * 2008-07-24 2010-02-04 Xorella Ag Verfahren und Vorrichtung zum Befeuchten von Textilware
CN102181974B (zh) * 2011-05-05 2013-07-10 铜陵市松宝机械有限公司 纱管预松装置
CN107723963B (zh) * 2017-11-28 2020-07-17 张家港扬子纺纱有限公司 一种精毛纺生产用低温循环气流装置
CN119877221B (zh) * 2025-03-31 2025-07-29 新乡学院 一种用于纺织的纱线蒸纱装置以及使用方法

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Also Published As

Publication number Publication date
WO1991003588A1 (fr) 1991-03-21
JPH05500244A (ja) 1993-01-21
DE59003268D1 (de) 1993-12-02
DE3928763A1 (de) 1991-03-07
AU6405590A (en) 1991-04-08
EP0489844A1 (fr) 1992-06-17

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