US2974070A - Process for cleaning spinnerets - Google Patents

Process for cleaning spinnerets Download PDF

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Publication number
US2974070A
US2974070A US711048A US71104858A US2974070A US 2974070 A US2974070 A US 2974070A US 711048 A US711048 A US 711048A US 71104858 A US71104858 A US 71104858A US 2974070 A US2974070 A US 2974070A
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United States
Prior art keywords
cleaning
liquid
orifices
bundle
vibrations
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.)
Expired - Lifetime
Application number
US711048A
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English (en)
Inventor
Bernhard Johann Van Dongeren
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Akzona Inc
Original Assignee
American Enka Corp
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Filing date
Publication date
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Publication of US2974070A publication Critical patent/US2974070A/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/04—Cleaning spinnerettes or other parts of the spinnerette packs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations

Definitions

  • the present invention relates generally to the cleaning of articles provided with minute orifices by the use of moving liquid and in particular to a process employing an ultrasonic vibration principle for cleaning the orifices of spinnerets or spinning plates used in the production of artificial yarn.
  • Flowing or moving liquids have of course been used for some time for cleaning apertured articles, such as spinnerets, that have become clogged or contaminated through extended use.
  • the articles are first rinsed or soaked in running water, after which a jet or stream of water under pressure is forced against the article with the effect, presumably, of removing all impurities from within the apertures or orifices.
  • the orifices are cleaned by brushing the spinneret or other articles with water or other cleansing agents.
  • An important object of the present invention is to provide a cleaning process not having the disadvantages of known cleaning systems.
  • Another object of this invention is to provide a process for effectively cleansing the apertures of spinnerets or other articles.
  • Still another object of the present invention is to provide a process for cleansing the minute orifices of spinnerets in a relatively short period of time.
  • a specific object of this invention is to utilize an ultrasonic vibrating liquid principle for cleaning clogged or contaminated spinneret orifices.
  • a further object of the present invention is to provide a process involving concentrating the cleaning action of moving liquid in order to increase the effectiveness thereof.
  • An additional object of this invention is to provide a spinneret cleaning process during the practice of which the extent of orifice clogging may be readily ascertained visually.
  • a bundle of ultrasonic vibrations directed upwardly is generated in a body of cleaning liquid and if the bundle converges with the focal point thereof lying in or near the surface of the liquid.
  • the article to be cleaned should be brought into the bundle with the face containing the orifices extending transversely of the axis of the bundle and into the boundary layer of liquid.
  • a converging bundle of ultrasonic vibrations may be accomplished in any known manner.
  • a cylindrical bundle of ultrasonic vibrations generated by a piezoelectric crystal may be converted into a converging bundle by the use of a lens or by reflection on a hollow mirror.
  • the piezoelectric crystal itself may be provided with a curved surface.
  • the phenomena discussed above are used to indicate when the orifices are completely cleaned.
  • the cleaning may of course be terminated immediately, which promotes a cleaning operation that is more efiicient than has been known heretofore.
  • the article to be cleaned should not be submerged in the liquid to such an extent as'to prevent the formation of fountains as cleaning liquid is forced through the orifices, since these fountains are of fundamental sigh- 'ificance insofar as concerns determination of complete cleansing.
  • extent of cleaning the best criterion is obtained if, according to this invention, the article to be cleaned is positioned with the orifice-containing face thereof slightly above the liquid level. This avoids possible deformation of the fountains bythe presence of liquid above the article during cleaning.
  • the focal 'point of' 1y transversely to the direction of the bundle during clean- 0 ing in order that the orifices located adjacent the periphery of the article also be exposed to treatment.
  • the above described system is especially suitable for the cleaning of spinnerets after the same have been polished, which usually leaves the orifices filled with the polishing agent.
  • This cleaning system has a particular advantage, if the last mentioned cleaning liquid is used, in that evaporation or atomization of the liquids, which is generally noxious and harmful to the operator, is reduced to a minimum. As a consequence of this, very little air conditioning is required at the cleaning station.
  • the apparatus for cleaning spinneret orifices by the principle of ultrasonic vibration is indicated generally in the drawing by reference numeral 10.
  • the cleaning apparatus as shown comprises an outer container 11 formed from glass, an inner vessel 12 formed from metal, a beaker 13 and means indicated generally at 14 for generating and focusing a bundle of ultrasonic vibrations.
  • a piezoelectric plate 15 of quartz, of which only the parallel planar surfaces are metallized, is positioned beneath an opening defined by 16 and provided substantially centrally of inner vessel 12.
  • the upper surface of plate 15 is spaced from a bottom plate 17 of inner vessel 12 by a rubber washer 18 wrapped in tin foil which engages the upper surface of plate 15 as well as the lower surface defining opening 16 and seals these members.
  • a metal contact plate 20 is disposed in alignment with and below the piezoelectric plate 15. This metal plate is separated from the piezoelectric plate by washer 21 and the plates and washer together define an air chamber 22.
  • a wire packing 23 is positioned within air chamber 22. The packing is of course provided in sufficient quantity to insure contact of both the upper and lower plates.
  • the metal contact plate 20 is connected through a metal conductor 26 and connecting screw 27 to one side of a high-frequency generator (not shown).
  • This generator may be of known construction and, therefore, will not be described in detail. It will be evident to those skilled in the art that the other lead of the generator must be grounded.
  • the connecting screw 27 passes through a suitable aperture provided in the bottom of outer container 11 and therefore is supported by this container.
  • Glass container 11 also supports the inner vessel 12 in the manner shown.
  • the upper rim of vessel 12 is flared outwardly, or flanged, as shown at 28 in order to overlie the upper edge of the outer container.
  • a washer 30 seals the space enclosed by the inner vessel and outer container, as shown.
  • the flange 28 is apertured in order to receive a plurality of drawbolts 31, which bolts also pass through flanged plate 32 positioned at the bottom of the container 11. Nuts are provided on the end of the drawbolts in order to urge the vessel and container together.
  • one of the drawbolts 31 supports an electrical terminal 33, which terminal is secured in position by nut 34.
  • the electrical terminal is grounded in a conventional manner (not shown) and the space between the inner vessel and outer container is substantially filled with transformer oil.
  • the aforesaid beaker 13 is positioned within the inner vessel 12 in the manner shown.
  • An annular sleeve 35 is secured to the lower end of this beaker and protrudes downwardly into engagement with the bottom plate 17.
  • the diameter of sleeve 35 is slightly greater than the diameter of opening defined by 16 in order that the beaker and sleeve will completely surround this opening.
  • bottom 36 of beaker 13 is formed from phenol form aldehyde resin and is provided with a concave portion 37 preferably having a radius of 35 mm. It can be seen by this construction that the bottom 36 may operate as a lens to convert a cylindrical bundle of ultrasonic vibrations generated by the quartz plate 15 into a converging bundle. The focal distance of the lens in this embodiment amounts to 55 mm.
  • the distance between the upper side of quartz plate 15 and the lower side of the lens-shaped bottom 36 should be adjusted in order to obtain a maximum transmission of vibrations. It has been found that this maximum condition exists if the aforesaid distance is equal to the product of the half wave length of the ultrasonic vibrations in the transfer medium'with which the inner vessel 12 is filled multiplied by a whole number. More will be said about this medium hereinafter.
  • Ports 38 are provided in the corner of the apparatus between the annular sleeve 35 and the bottom 36 of the beaker. These deaeration ports, which are provided over the periphery of the sleeve, permit the transfer liquid from inner vessel 12 to fill completely the space between the beaker and the quartz plate 15.
  • the vertical cylindrical wall of the beaker is formed from aluminum.
  • the inner vessel 12 is filled with a transfer liquid such as water and the beaker 13 is filled with the organic cleaning liquid.
  • the quantity of the organic liquid is so selected that the liquid surface in the inoperative position of the apparatus is about 1 cm. above the focal point of the lens 36.
  • the highfrequency generator is put into operation by increasing the voltage thereof gradually.
  • a liquid column directed upwardly is formed in the center of the liquid surface in the beaker, during which time atomizing occurs.
  • a clogged or otherwise contaminated spinneret 40 now may be placed in the beaker 13 at the apex of the converging liquid column with the oustide of the spinneret facing upwardly. It is preferred that a suitable holder, such as shown at 41, be provided for surrounding and maintaining the spinneret in position during the cleaning operation.
  • the spinneret may be held with the substantially fiat, orifice-containing face thereof transversely of the axis of the bundle of vibrations on a level slightly above the undisturbed liquid surface around that portion of liquid forming the column. Moreover, the spinneret should be repciprocated slowly to and fro during cleaning. Shortly after the spinneret is positioned over the column, there will appear smaller columns, or fountains, one for each of the cleaned or partially cleaned orifices. As mentioned above, with practice, the operator will be able to determine when cleaning is completed merely by inspection of these small fountains. In general, all of the orifices will be completely cleaned in about 15 secends.
  • the time requiredfor cleaning contaminated spinnerets in the practice of this invention is appreciably less than that required for cleaning with brushes, particularly in the event that spinncrets having a large number of orifices are to be cleaned.
  • a substantial portion of this saving in time results from the fact that the operator may determine immediately when cleaning has been completed.
  • frequent prolonged cleaning cycles may be avoided.
  • the loss in treatment liquid due to atomizing is negligible.
  • the cylindrical beaker wall extending above the lens 36 may be omitted, if desired, in which case only the lens would be provided. In this event, however, it will be necessary to fill the inner vessel 12 with the treating or cleaning liquid.
  • the lens 36 may consist of material other than phenol formaldehyde resin such as, for example, polystyrene or polymethacrylate or any other material operating satisfactorily for transmitting ultrasonic vibrations. It is pointed out, however, that this material must resist chemical reaction of the cleaning liquids. It is also possible to form the concave surface in the quartz plate 15, in which event the lens 36 would not be required.
  • the process described herein may be used for the cleaning of all types of spinnerets, including spinning plates used in melt spinning. Further, it is possible to clean sieve plates or other articles provided with small orifices. These orifices should extend through the plate, of course, in order to form a passageway for the treating liquid.
  • the present invention is also applicable to the cleaning of articles with liquids other than those described herein.
  • liquids other than those described herein.
  • other organic liquids, emulsions or aqueous solutions could be utilized.
  • a process for cleaning contaminated articles hawng a substantially fiat face provided with minute orifices in a body of cleaning liquid comprising the steps of directing a bundle of ultrasonic vibrations upwardly toward the completely Y surface of said liquid, converging the bundle of vibrations into a focal point near the surface of said liquid, and

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US711048A 1957-02-07 1958-01-24 Process for cleaning spinnerets Expired - Lifetime US2974070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL824538X 1957-02-07

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US2974070A true US2974070A (en) 1961-03-07

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US711048A Expired - Lifetime US2974070A (en) 1957-02-07 1958-01-24 Process for cleaning spinnerets

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US (1) US2974070A (forum.php)
BE (1) BE564288A (forum.php)
GB (1) GB824538A (forum.php)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2331764A1 (de) * 1973-06-22 1975-01-23 Zimmer Ag Spinnstelle fuer das schmelzspinnen von hochpolymeren
US4082565A (en) * 1975-12-15 1978-04-04 Rino Sjolander Method and apparatus for the removal of deposits from a fuel injection valve
US4112955A (en) * 1977-01-21 1978-09-12 Gollel Richard M Coin operated ultrasonic cleaning device
US4753257A (en) * 1985-09-26 1988-06-28 Skoda Koncernovy Podnik Arrangement for cleaning of components by a close ultrasonic field, particularly for cleaning of cylindrical filter inserts
US4870982A (en) * 1989-01-09 1989-10-03 Tatung Company Of America, Inc. Ultrasonic cleaning apparatus for household use
USD352806S (en) 1992-12-07 1994-11-22 High Tech Auto Tools Pty Ltd. Fuel injector tester
US5728226A (en) * 1996-07-22 1998-03-17 Basf Corporation Process for cleaning an assembled spin pack of a melt spinning assembly
US5803099A (en) * 1994-11-14 1998-09-08 Matsumura Oil Research Corp. Ultrasonic cleaning machine
US20220049376A1 (en) * 2020-08-13 2022-02-17 Gelatex Technologies OÜ Device and method for producing polymer fibers and its uses thereof
CN116752242A (zh) * 2023-08-23 2023-09-15 常州纺兴精密机械有限公司 一种毛型纤维喷丝板加工用清理装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5086810A (en) * 1985-10-28 1992-02-11 Milliken Research Corporation Ultra-sonic reed cleaning system
US5005606A (en) * 1985-10-28 1991-04-09 Milliken Research Corporation Ultra-sonic reed cleaning method
US4763677A (en) * 1986-11-26 1988-08-16 Techalloy Illinois, Inc. Sonic treatment apparatus
CN111865137B (zh) * 2020-07-25 2021-08-27 东莞理工学院 一种可进行内部清理的超声波换能设备
CN112680800B (zh) * 2020-12-22 2022-01-07 咸宁优维科技有限公司 一种纳米纤维无纺布生产装置及使用方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2388836A (en) * 1943-09-01 1945-11-13 William J Dunn Flushing apparatus
US2634738A (en) * 1948-12-27 1953-04-14 Charles E Fuller Bearing washer
US2814575A (en) * 1954-08-13 1957-11-26 Hodes Lange Corp Method and apparatus for cleaning ampoules with the aid of ultrasonic vibration
US2831785A (en) * 1958-04-22 Jfzgz
US2845077A (en) * 1956-08-02 1958-07-29 Branson Instr Ultrasonic cleaning apparatus
US2855526A (en) * 1955-10-24 1958-10-07 Aeroprojects Inc Apparatus for generating ultrasonic energy of high intensity

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831785A (en) * 1958-04-22 Jfzgz
US2388836A (en) * 1943-09-01 1945-11-13 William J Dunn Flushing apparatus
US2634738A (en) * 1948-12-27 1953-04-14 Charles E Fuller Bearing washer
US2814575A (en) * 1954-08-13 1957-11-26 Hodes Lange Corp Method and apparatus for cleaning ampoules with the aid of ultrasonic vibration
US2855526A (en) * 1955-10-24 1958-10-07 Aeroprojects Inc Apparatus for generating ultrasonic energy of high intensity
US2845077A (en) * 1956-08-02 1958-07-29 Branson Instr Ultrasonic cleaning apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2331764A1 (de) * 1973-06-22 1975-01-23 Zimmer Ag Spinnstelle fuer das schmelzspinnen von hochpolymeren
US4082565A (en) * 1975-12-15 1978-04-04 Rino Sjolander Method and apparatus for the removal of deposits from a fuel injection valve
US4112955A (en) * 1977-01-21 1978-09-12 Gollel Richard M Coin operated ultrasonic cleaning device
US4753257A (en) * 1985-09-26 1988-06-28 Skoda Koncernovy Podnik Arrangement for cleaning of components by a close ultrasonic field, particularly for cleaning of cylindrical filter inserts
US4870982A (en) * 1989-01-09 1989-10-03 Tatung Company Of America, Inc. Ultrasonic cleaning apparatus for household use
USD352806S (en) 1992-12-07 1994-11-22 High Tech Auto Tools Pty Ltd. Fuel injector tester
US5803099A (en) * 1994-11-14 1998-09-08 Matsumura Oil Research Corp. Ultrasonic cleaning machine
US5728226A (en) * 1996-07-22 1998-03-17 Basf Corporation Process for cleaning an assembled spin pack of a melt spinning assembly
US20220049376A1 (en) * 2020-08-13 2022-02-17 Gelatex Technologies OÜ Device and method for producing polymer fibers and its uses thereof
US11697892B2 (en) * 2020-08-13 2023-07-11 Gelatex Technologies OÜ Device and method for producing polymer fibers and its uses thereof
CN116752242A (zh) * 2023-08-23 2023-09-15 常州纺兴精密机械有限公司 一种毛型纤维喷丝板加工用清理装置
CN116752242B (zh) * 2023-08-23 2023-11-07 常州纺兴精密机械有限公司 一种毛型纤维喷丝板加工用清理装置

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GB824538A (en) 1959-12-02
BE564288A (forum.php)

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