US2694915A - Stripping guide - Google Patents

Stripping guide Download PDF

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Publication number
US2694915A
US2694915A US272675A US27267552A US2694915A US 2694915 A US2694915 A US 2694915A US 272675 A US272675 A US 272675A US 27267552 A US27267552 A US 27267552A US 2694915 A US2694915 A US 2694915A
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United States
Prior art keywords
discs
thread
axle
slots
stripping
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
US272675A
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English (en)
Inventor
William V Henry
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.)
Akzona Inc
Original Assignee
American Enka Corp
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
Priority to NL77570D priority Critical patent/NL77570C/xx
Priority to NLAANVRAGE7116070,B priority patent/NL170249B/xx
Application filed by American Enka Corp filed Critical American Enka Corp
Priority to US272675A priority patent/US2694915A/en
Application granted granted Critical
Publication of US2694915A publication Critical patent/US2694915A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/06—Wet spinning methods
    • 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
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement

Definitions

  • This present invention relates to apparatus for stripping liquids from moving threads, and more particularly, the invention contemplates the use of thread stripping guides either in wet spinning processes for the manufacture of regenerated cellulose threads, or in the wet aftertreatments of various types of threads of natural or synthetic origin.
  • the guides of the present invention have particular utility in the manufacture of'high denier viscose rayon, wherein a viscose solution is extruded through spinnerets into an acid spinbath to form threads consisting of a multiplicity of filaments. These threads are then stretched in a second hot water bath and thereafter subjected to various other aftertreatments. When the threads pass out of the spinbath, a considerable amount of bath liquid tends to adhere to them in the form of a sheath and is carried away and lost in the later steps of the process. This not only results in acid loss, but also unduly contaminates the various other baths used in the aftertreatments.
  • This invention has as an object to provide a thread stripping guide which will effectively remove liquid from rapidly moving thread and witha minimum of friction.
  • a further object is to provide an abrasion-resistant stripping guide which will remove acid from freshly formed viscose rayon thread without adversely affecting the guide or the thread H g 1
  • Another object is to provide a thread stripping guide which will remove acid from a rapidly movingthread of heavy denier viscose" rayon and return the acid to the spinbath.
  • a still further object is to provide a thread stripping guide having thread-engaging surfaces'that are capable'of being moved to different positions with respect to the thread to reduce replacement due to the accumulation of solids thereon.
  • Figure 2 is an end view of the device shown in Figure l:
  • Figure 3 is a fragmentary perspective view of the device shown in Figures 1 and 2 in position for use in a spinning system.
  • a thread guide assembly is indicated generally by the numeral 10.
  • the base 11 of the assembly has a bore 12 extending up through the bottom to receive a rod 13 which supports the assembly in the desired position (see Figure 3), and this position may be changed at will by means of an adjustable set screw 14.
  • the assembly 10 is provided with two upwardly convergent oblique slots 15a and 15b which terminate near the apex formed by the inner sides of the slots.
  • An interrupted channel 16 is provided near the top of the assembly to receive a pin 17 which protrudes a short distance from the sides of the assembly and passes through the upper portion of slots 15a and 15b.
  • Two thin flexible discs 18a and 18b are mounted and retained in slots 15a and 15b by means of pin 17.
  • the convergence of the slots causes the discs to abut each other at point 19, above the theoretical apex of the slots.
  • there is a slight wedging action at point 19 between the two discs and this retains the discs in a fixed position when they are in use.
  • this can be readily effected manually because due to the flexibility of the material used, the discs will yield slightly in the region of the pin 17 when they are rotated.
  • discs 18a and 18b are beveled on their sides opposite the side at which they contact at point 19, namely, on their outside peripheries at 18c and 18d, respectively.
  • a shallow trough 20 is formed in the center of the upper surface of the thread guide assembly 10 and extends from pin 17 to a point adjacent the base 11, which provides clearance for the thread.
  • FIG 3 shows the thread stripping guide of the present invention in a typical spinning installation.
  • Thread 21 is formed when a viscose solution is extruded through spinneret 22 into an aqueous acid bath 23.
  • the thread guide assembly 10 is mounted over spinbath 23 by means of an L-shaped rod 24, one end of which is fixed to the spinbath trough 25 by means of clamp 29 and the other end 13 is clamped to the assembly by set screw 14.
  • the thread 21 is passed up through the spinbath 23, around rod 24, thence to and around godet 27 and then back down between the stripping discs 18a and 18b.
  • the stripping guide discs 18a and 18b, mounted directly above spinbath 23 is so positioned with respect to godet 27 and the second hot bath 28 that the discs exert a squeezing action on the thread between their abutting surfaces. This results in the removal of a large part of the acid from the moving thread.
  • the stripped acid immediately passes over the bevelled edges of the discs and after running down the sides of the discs falls into the spinbath below.
  • the bevelled edges effectively prevent any tendency on the 7 part of the stripped liquid to well-up or be taken up by other portions of the moving thread and insure that the liquid is returned to the acid spinbath.
  • the thread After passing between the discs the thread is propelled through the second hot bath 28 and finally stretched the As stated above, if the discs tend to become covered with incrustations deposited around the portions where the thread is contacted, they may be rotated manually to provide fresh contact area.
  • the present stripping guide efiectively removes practically all of the sulphuric acid from freshly spun heavy denier viscose rayon yarn, making possible a substantial reduction in acid consumption. Furthermore, this stripping guide may be used virtually continuously over long periods of time with no interruptions for replacements and with no adverse effect on the characteristics of the yarn.
  • the stripping portion of the guide consists of two discs which converge to a point where a portion of their peripheries abut, appears to facilitate the removal of the liquid and return the same to the desired place for recovery. Mounting the discs for limited rotation permits changing the point of contact between the discs and the thread which in turn lengthens the period of use of the guides because the deposits that form at the point of thread contact can continue to build up around the entire perimeter of the discs before cleaning.
  • plastics which are flexible and corrosion and abrasion resistant can be employed with signal success.
  • polysubstituted ethylenes such as polytetrafluoroethylene known as Teflon or polychlorotrifluoroethylene known as, Kel F are particularly well suited for this purpose as well as some of the plastics made from the superpolyarnides.
  • materials such as glass or stainless steel will not withstand the abrasive action of thread moving rapidly in contact with a stripping guide made of these materials.
  • a thread stripping guide comprising an axle member, a flexible disc rotatably mounted on said axle member, a second flexible disc rotatably mounted on said axle. member, and means urging a portion of the periphery of; one of said discs into abutting relationship with a corresponding peripheral portion on the other of said discs.
  • a thread stripping guide comprising an axle member, a flexible disc rotatably mounted on said axle member, a second flexible disc rotatably mounted on said axle member, and means urging a portion of the periphery of one of said discs intoabutting relationship with a corresponding peripheral portion on the other of said discs, the edges of said discs being bevelled away from the abutting side of said discsv toward the non-abutting side of said discs.
  • a thread stripping guide comprising an axle mem ber,, a flexible polysubstituted ethylene disc rotatably mounted on said axle member, a second flexible polysubstituted ethylene disc; rotatably mounted on said 'axle member... means. urging a. portion the p rip y of on of said discs into abutting relationship with a correspond; ing peripheral portion on the other of said discs, the edges olj said flexible discs being bevelled away from the abutting side of said discs toward the non-abutting side oi saidj discs.
  • a thread stripping guide comprising an axle member,, a flexible superpolyamide disc rotatably mounted on said axle member, a second flexible superpolyamide disc rotatably mounted on said axle member, means urging a portion of the periphery of one of said discs into. abutting relationship with a corresponding peripheral portion on the other of said discs, the edges of said flexible discs being bevelled away from the abutting side of said discs toward the non-abutting side of said discs.
  • a thread stripping guide comprising an axle, a flexible. disc rotatably mounted on said axle at an oblique angle, a second flexible disc rotatably mounted on said axle at an oblique angle, a portion of the periphery of one of said discs being disposed in abutting relationship with a corresponding peripheral portion on the other of said discs.
  • a thread stripping guide comprising an axle, a flexible disc rotatably mounted on said axle at an oblique angle, a second flexible disc rotatably mounted on said axle at an oblique angle, a portion of the periphery of one of said discs being disposed in abutting relationship with a corresponding peripheral portion on the other of said discs, the edges of said discs being bevelled away from the abutting side of said discs toward the non-abutting side of said discs.
  • a polytetrafluoroethylene thread stripping guide comprising an axle, a flexible disc rotatably mounted on said axle at an oblique angle, a second flexible disc rotatably mounted on said axle at an oblique angle, a portion of the periphery of one of said discs being disposed in abutting relationship with a corresponding peripheral portion on the other of said discs, the edges of said discs being bevelled away from the abutting side of said discs toward the non-abutting side of said discs.
  • a device for stripping liquid from thread comprising a housing provided with two slots, an axle secured to said housing and traversing said slots, said slots being disposed at an oblique angle with respect to said axle, a flexible disc mounted on said axle for rotatable movement in one of said slots, a second flexible disc mounted on said axle for rotatable movement in the other of said slots, a portion of the periphery of one of said discs being disposed exterior of said slots in abutting relationship with a corresponding peripheral portion on the other of said discs.
  • a device for stripping liquid from a thread comprising a housing provided with two slots, an axle secured to said housing and traversing said slots, said slots being disposed at an oblique angle with respect to said axle, a flexible disc mounted on said axle for rotatable movement in one of said slots, a second flexible disc mounted on said axle for rotatable movement in the other of said slots, a portion of the periphery of one of said discs being disposed exterior of said slots in abutting relationship with a corresponding peripheral portion on the other of said discs, the edges of said discs being bevelled away from the abutting side of said discs toward the non-abutting side of said discs.
  • a device for stripping liquid from a thread comprising a housing provided with two slots, an axle secured to said housing and traversing said slots, said slots being disposed at an oblique angle with respect to said axle, a flexible disc mounted on said axle for rotatable movement in one of said slots, a second flexible disc mounted on said axle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US272675A 1952-02-20 1952-02-20 Stripping guide Expired - Lifetime US2694915A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL77570D NL77570C (enrdf_load_html_response) 1952-02-20
NLAANVRAGE7116070,B NL170249B (nl) 1952-02-20 Voertuig voorzien van een door een ophanginrichting met het chassis verbonden frontcabine.
US272675A US2694915A (en) 1952-02-20 1952-02-20 Stripping guide

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Application Number Priority Date Filing Date Title
US272675A US2694915A (en) 1952-02-20 1952-02-20 Stripping guide

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US2694915A true US2694915A (en) 1954-11-23

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2808594A (en) * 1956-03-01 1957-10-08 Sherman G Hodgson Diaper rinser
US2852808A (en) * 1953-10-05 1958-09-23 British Celanese Apparatus for manufacture or treatment of artificial filamentary materials
US2892336A (en) * 1954-02-02 1959-06-30 Pensotti Ambrogio Apparatus for wet-treating threads, particularly viscose rayon threads
US3470583A (en) * 1964-07-02 1969-10-07 Celanese Corp False twisting

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US270709A (en) * 1883-01-16 Island
US1083005A (en) * 1913-12-30 Charles J Burdick Drip rail-plate for twisting-frames.
US1575822A (en) * 1925-09-04 1926-03-09 Joseph F Davis Stripper mechanism
US1592639A (en) * 1925-04-29 1926-07-13 Muster Fred Adjustable cleaner for guide eyes for textile machinery
US1748900A (en) * 1928-05-23 1930-02-25 Pilla Sebastiano Device for cleaning lines or strands
US2062389A (en) * 1931-05-21 1936-12-01 Bleibler Ernst Apparatus for coating fibers
US2239159A (en) * 1940-02-14 1941-04-22 Patterson Ballagh Corp Line wiping device
US2243844A (en) * 1940-01-18 1941-06-03 Rosedale Knitting Company Apparatus for conditioning thread
US2285742A (en) * 1940-12-18 1942-06-09 De Mont G Miller Line wiping device
US2385097A (en) * 1944-06-22 1945-09-18 Ind Rayon Corp Thread guide
US2431695A (en) * 1944-07-03 1947-12-02 American Bemberg Corp Thread guide
US2442335A (en) * 1943-05-03 1948-06-01 American Viscose Corp Coating device
US2517089A (en) * 1947-03-11 1950-08-01 Herbert J Dean Fishline straightener and conditioner

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1083005A (en) * 1913-12-30 Charles J Burdick Drip rail-plate for twisting-frames.
US270709A (en) * 1883-01-16 Island
US1592639A (en) * 1925-04-29 1926-07-13 Muster Fred Adjustable cleaner for guide eyes for textile machinery
US1575822A (en) * 1925-09-04 1926-03-09 Joseph F Davis Stripper mechanism
US1748900A (en) * 1928-05-23 1930-02-25 Pilla Sebastiano Device for cleaning lines or strands
US2062389A (en) * 1931-05-21 1936-12-01 Bleibler Ernst Apparatus for coating fibers
US2243844A (en) * 1940-01-18 1941-06-03 Rosedale Knitting Company Apparatus for conditioning thread
US2239159A (en) * 1940-02-14 1941-04-22 Patterson Ballagh Corp Line wiping device
US2285742A (en) * 1940-12-18 1942-06-09 De Mont G Miller Line wiping device
US2442335A (en) * 1943-05-03 1948-06-01 American Viscose Corp Coating device
US2385097A (en) * 1944-06-22 1945-09-18 Ind Rayon Corp Thread guide
US2431695A (en) * 1944-07-03 1947-12-02 American Bemberg Corp Thread guide
US2517089A (en) * 1947-03-11 1950-08-01 Herbert J Dean Fishline straightener and conditioner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852808A (en) * 1953-10-05 1958-09-23 British Celanese Apparatus for manufacture or treatment of artificial filamentary materials
US2892336A (en) * 1954-02-02 1959-06-30 Pensotti Ambrogio Apparatus for wet-treating threads, particularly viscose rayon threads
US2808594A (en) * 1956-03-01 1957-10-08 Sherman G Hodgson Diaper rinser
US3470583A (en) * 1964-07-02 1969-10-07 Celanese Corp False twisting

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NL77570C (enrdf_load_html_response)
NL170249B (nl)

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