US3648554A - Apparatus for cutting spool wound thread into staple fibers - Google Patents

Apparatus for cutting spool wound thread into staple fibers Download PDF

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Publication number
US3648554A
US3648554A US5843A US3648554DA US3648554A US 3648554 A US3648554 A US 3648554A US 5843 A US5843 A US 5843A US 3648554D A US3648554D A US 3648554DA US 3648554 A US3648554 A US 3648554A
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US
United States
Prior art keywords
spool
wound
thread
cutting
circular knives
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
US5843A
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English (en)
Inventor
Walter Arnold
Gunter Wepner
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Individual
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Individual
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Publication date
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Publication of US3648554A publication Critical patent/US3648554A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H73/00—Stripping waste material from cores or formers, e.g. to permit their re-use
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/913—Filament to staple fiber cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/924—Work wrapped or coated around a core, not part of the machine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/263—With means to apply transient nonpropellant fluent material to tool or work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6584—Cut made parallel to direction of and during work movement
    • Y10T83/6603—Tool shiftable relative to work-conveying means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6584—Cut made parallel to direction of and during work movement
    • Y10T83/6608—By rectilinearly moving work carriage
    • Y10T83/6614—Pusher engaging rear surface of work
    • Y10T83/6616—Having means to actuate pusher
    • Y10T83/6617—Hydraulic or pneumatic means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/808—Two tool pairs, driver for one pair moves relative to driver for other pair
    • Y10T83/817—With variable spacing between tool pairs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8789—With simple revolving motion only
    • Y10T83/8796—Progressively cutting

Definitions

  • ABSTRACT Apparatus for cutting thread wound on a spool or bobbin into staple fibers including two or more circular knives arranged radially of the spool axis at equal intervals with reference to the spool circumference and with their axes or rotation in a single plane and means to hold a completely or partially wound spool while axially shifting or moving it between the circular knives for cutting engagement with the thread.
  • the material wound on spools even though its quality is not sufficient for further preparation as a continuous thread or yarn, does possess for the most part a quality sufficient for use in the production of fleeces or fillers.
  • the preparation of a fleece or filler material requires the material to be in the form of staple fibers of certain lengths.
  • the primary object of the present invention is to provide a cutting and stripping apparatus or device which will cut the thread or yarn contained on completely or partially wound spools into staple fibers of the desired length for direct use in further processing, for example in the production of nonwoven fabrics, fleeces, fillers and the like.
  • Another object of the invention is to provide a cutting apparatus for producing staple fibers from spool wound thread or yarn which is easily constructed and operated as well as being adaptable to various spool or bobbin sizes.
  • apparatus which includes means to hold a spool which is at least partially wound with thread; a plurality of rotatable circular knives mounted radially of the spool axis at equal intervals to one another such that the axes of rotation of the circular knives lie in a common plane; and means to axially shift the wound spool between said circular knives for their simultaneous cutting engagement with the wound thread.
  • At least two and preferably at least four circular knives are required for most spool sizes, and it will be recognized that the cutting edge of each knife lies in a plane projecting radially through the spool axis.
  • rotating drive means operatively connected, e.g., by a drive shaft, to the circular knives to cause a turning direction of the knives at the point of cutting engagement which coincides with the direction in which the spool is axially shifted for cutting engagement.
  • the layers of thread or yarn on the wound spool are cut in an unobjectionable and uniform manner by the circular blades or knives which are positioned for simultaneous cutting engagement.
  • the desired staple length of the fibers which must generally be greater than mm. but smaller than about 150 mm. for the production of a fleece or filler material, is obtained by distributing a suitable number of circular blades around the circumference of the spool.
  • the cutting device can be adapted to any given spool diameter. Also, the reduction of the diameter of the wound spool which occurs during the cutting operation of the circular blades is accurately regulated and balanced by the radially adjustable displacement of the circular blades.
  • An additional embodiment of the apparatus according to the invention is directed to means for blowing a cooling gas such as air onto the circular knives, for example by means of nozzles arranged to force a jet of cooling air in the direction of rotation.
  • a cooling gas such as air onto the circular knives
  • the cutting speed can be considerably increased.
  • the stream of air separates the cut fibers or filaments from the cutting position and helps to deliver them into a collecting chamber or receptacle.
  • FIG. 1 is a partly schematic and cross-sectional view of the cutting device, taken approximately through a vertically positioned central axis;
  • FIG. 2 is a top plan view indicating the arrangement of four circular knives around the spool in the cutting position
  • FIG. 3 is an enlarged top plan view ofone circular knife and means for its radial adjustment.
  • the spool holder and cutting apparatus is installed in any suitable supporting means or framework 1.
  • a bilaterally loadable pneumatic lift cylinder 2 i.e., one which has a reversibly operated piston reciprocating in a conventional manner by means of a four-way valve system (not illustrated).
  • a positioning fixture or spool holding device 4 On the piston rod 3 of the lift cylinder 2, there is fastened a positioning fixture or spool holding device 4.
  • a conventional expandable chuck or the like can be removably inserted into the core of the hollow spool 7 which is completely or partially wound with a thread or yarn material 6.
  • the holding fixture 4 can be adapted to receive an appropriate holding or clamping means ofany conventional type provided that it securely holds the spool in place for axial movement during the cutting operation. Furthermore, it is possible to provide means to sequentially introduce a large number of spools into the cutting device in an automatic manner by means of a suitable spool feeding arrangement. Such additional refinement of the apparatus does not constitute a specific feature of the invention but does illustrate the manner in which the cutting device is readily adapted to large industrial operations. For infrequent cutting requirements or relatively short periods of operation, hand loading and removal of the spools is quite adequate and easily accomplished.
  • the piston within the pneumatic lift cylinder 2 is located at its upper end position, so that the piston rod is almost completely retracted to a spool loading position.
  • the circular knives 8 are rotatably driven around their axes 9 lying in a common. horizontal plane.
  • the axes 9 are pivoted on bearing supports which can also be positioned in a radial direction to the spool (not shown in FIG. 1).
  • the circular knives 8 in addition to suitable drive elements are preferably enclosed by a housing 10 which contains a funnelshaped opening 11 as an inlet or receiving means for the spool 7.
  • the nozzles 12 are installed in the upper circumference of the housing 10 and are supplied over suitable feed lines 13 with cooling air which is directed onto the cutting edge of each knife, preferably so as to flow across both faces in their turning direction and toward the spool as it is being cut.
  • a collecting bin 14 to receive the cut staple fibers.
  • the collecting bin 14 is ad.-
  • the lift cylinder 2 For cutting the material 6 from the spool 7, the lift cylinder 2 is reversed from the upper spool loading position of the piston 3. Thereby, the spool 7 is moved vertically downwardly as indicated by the arrow, whereby the material 6 is simultaneously engaged and cut by the circular knives 8 arranged at equal intervals, the turning direction of the knives being shown by arrows. The cut fibers fall under the influence of their own weight and are also assisted by the stream of cooling air so as to be directed into the collecting bin 14. After the spool 7 has passed through the circular knives 8, the lift cylinder 2 is again reversed to move the piston 3 and spool 7 vertically upwardly so as to return to the initial loading position shown in FIG. 1.
  • FIG. 2 which includes only the four circular knives 8 with their drive shafts 9 and the spool 7, the radial and circumferential position of the knives 8 is more clearly shown with reference to the spool axis.
  • the cutting edges of the knives are radially aligned at 90 positions around the spool axis and are preferably radially adjustable in the direction of the double-headed arrows with means to accurately fix each cutting edge so that it will not cut into the spool 7 but will practically completely cut through all of the wound thread material 6 indicated by the broken circular line.
  • Each circular knife should be located at the same radial distance with reference to the spool axis in order to provide a simultaneous and equal cutting pressure.
  • FIG. 3 illustrates in greater detail an enlarged top plan view of one of the circular knives corresponding to the upper right quadrant of the assembly of FIG. 2.
  • its drive shaft 9 is supported on a bearing member 15 adapted to ride in a key slot 15a or the like located in a supporting rib 16 securely attached to the framework 1 and a horizontal mounting plate 17.
  • a motor 18 or other drive means can also be slidably received on the mounting plate 17 so as to ride on a pair of tracks 19 parallel to the key slot 15a.
  • both the motor 18 and the attached drive shaft 9 and circular knife 8 can be easily and accurately adjusted to the desired radial position of the cutting edge of the knife.
  • Any conventional locking means such as locking pins or screws can be used to hold the drive shaft and/or motor in a fixed position once the required adjustment has been made.
  • the lower shelf or bottom 21 of the housing is preferably located below the mounting plate 17 to provide a substantially enclosed area for the motor or other drive means.
  • the framework 1 as shown in FIG. 3 is a substantially open structure composed of rigid vertical supporting beams, crossbars and similar members, since the housing 10 provides a sufficient enclosure to receive the wound spool and discharge the cut threads or fibers.
  • the circular knives are preferably operated at a relatively high speed which is uniform as between all of the knives.
  • Each layer of the wound thread or yarn tends to become disengaged into staple lengths as the knife edges pass simultaneously therethrough, the inner cylindrical walls of intake 11 being adapted to guide and hold the partially cut layers of thread until they are discharged at the lower end.
  • the staple fibers obtained with the cutting device of the invention are surprisingly quite uniform, and after being collected they can be immediately used as a fleece or filler material with very little if any processing. At the same time,
  • the spools are recovered without damage and can be reused for other winding operations.
  • Apparatus for cutting spool would thread into staple fibers comprising:
  • rotating drive means for operative cutting rotation of said circular knives.
  • Apparatus as claimed in claim 1 wherein said means to axially shift the wound spool includes means to retract the empty spool to a loading position after the thread is cut therefrom.
  • Apparatus as claimed in claim 1 comprising at least four circular knives arranged at equal intervals sufficiently small to cut the wound thread into staple fibers ofabout 20 to l50 mm.
  • Apparatus as claimed in claim 1 wherein said means to hold said spool includes a vertically shiftable clamping means which is removably fastened to said spool.

Landscapes

  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US5843A 1969-01-29 1970-01-26 Apparatus for cutting spool wound thread into staple fibers Expired - Lifetime US3648554A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691904288 DE1904288A1 (de) 1969-01-29 1969-01-29 Vorrichtung zum Schneiden von auf Spulen aufgewickelten Faeden zu Stapelfasern

Publications (1)

Publication Number Publication Date
US3648554A true US3648554A (en) 1972-03-14

Family

ID=5723665

Family Applications (1)

Application Number Title Priority Date Filing Date
US5843A Expired - Lifetime US3648554A (en) 1969-01-29 1970-01-26 Apparatus for cutting spool wound thread into staple fibers

Country Status (12)

Country Link
US (1) US3648554A (sv)
JP (1) JPS505292B1 (sv)
AT (1) AT320835B (sv)
BE (1) BE744075A (sv)
CH (1) CH495909A (sv)
DE (1) DE1904288A1 (sv)
ES (1) ES375185A1 (sv)
FR (1) FR2029624A1 (sv)
GB (1) GB1268603A (sv)
LU (1) LU60139A1 (sv)
NL (1) NL7000338A (sv)
SE (1) SE381685B (sv)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200967A (en) * 1978-11-02 1980-05-06 The Dow Chemical Company Method and apparatus for reclaiming polymer from scrap plastic film rolls
US4864906A (en) * 1988-01-29 1989-09-12 Hall Troy L Core slabbing machine
US5678774A (en) * 1995-12-18 1997-10-21 Etc. Industries Inc. Fiberglass cutting apparatus and method
US5732544A (en) * 1996-06-04 1998-03-31 Ferguson, Sr.; John H. Textile yarn tube stripper
US5954278A (en) * 1998-03-31 1999-09-21 Etc. Industries, Inc. Fiberglass cutting apparatus and method
US6202525B1 (en) * 1998-02-25 2001-03-20 Johns Manville International, Inc. Chopping apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10131149A1 (de) * 2001-06-28 2003-01-16 Bayer Ag Substituierte Benzinmidazole zur Bekämpfung von Endoparasiten

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US986831A (en) * 1910-11-14 1911-03-14 Francis M Kennedy Core-stripper.
US1366082A (en) * 1918-12-24 1921-01-18 Burgess Battery Co Recovering components of exhausted dry-battery cells
US1693996A (en) * 1926-03-15 1928-12-04 Delco Remy Corp Armature-insulation-cutting machine
US1954817A (en) * 1932-04-25 1934-04-17 Bernard F Jenkins Insulation stripper
US2319198A (en) * 1940-09-24 1943-05-18 Western Electric Co Apparatus for slitting and cutting conductors
US2427167A (en) * 1945-09-07 1947-09-09 American Viscose Corp Apparatus for cutting fibers
US2613425A (en) * 1949-08-11 1952-10-14 Carl F Whitaker Bobbin stripping apparatus
US2776711A (en) * 1953-11-06 1957-01-08 J F Bas & Co Machine for cutting moving web into particles
US3050928A (en) * 1959-08-18 1962-08-28 Sumner Company Inc Converting continuous filament to staple fiber
US3173320A (en) * 1960-06-13 1965-03-16 Commissariat Energie Atomique Machine for separating irradiated fuel slugs from their jackets

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US986831A (en) * 1910-11-14 1911-03-14 Francis M Kennedy Core-stripper.
US1366082A (en) * 1918-12-24 1921-01-18 Burgess Battery Co Recovering components of exhausted dry-battery cells
US1693996A (en) * 1926-03-15 1928-12-04 Delco Remy Corp Armature-insulation-cutting machine
US1954817A (en) * 1932-04-25 1934-04-17 Bernard F Jenkins Insulation stripper
US2319198A (en) * 1940-09-24 1943-05-18 Western Electric Co Apparatus for slitting and cutting conductors
US2427167A (en) * 1945-09-07 1947-09-09 American Viscose Corp Apparatus for cutting fibers
US2613425A (en) * 1949-08-11 1952-10-14 Carl F Whitaker Bobbin stripping apparatus
US2776711A (en) * 1953-11-06 1957-01-08 J F Bas & Co Machine for cutting moving web into particles
US3050928A (en) * 1959-08-18 1962-08-28 Sumner Company Inc Converting continuous filament to staple fiber
US3173320A (en) * 1960-06-13 1965-03-16 Commissariat Energie Atomique Machine for separating irradiated fuel slugs from their jackets

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200967A (en) * 1978-11-02 1980-05-06 The Dow Chemical Company Method and apparatus for reclaiming polymer from scrap plastic film rolls
US4864906A (en) * 1988-01-29 1989-09-12 Hall Troy L Core slabbing machine
US5678774A (en) * 1995-12-18 1997-10-21 Etc. Industries Inc. Fiberglass cutting apparatus and method
US5732544A (en) * 1996-06-04 1998-03-31 Ferguson, Sr.; John H. Textile yarn tube stripper
US6202525B1 (en) * 1998-02-25 2001-03-20 Johns Manville International, Inc. Chopping apparatus
US5954278A (en) * 1998-03-31 1999-09-21 Etc. Industries, Inc. Fiberglass cutting apparatus and method

Also Published As

Publication number Publication date
AT320835B (de) 1975-02-25
FR2029624A1 (sv) 1970-10-23
BE744075A (fr) 1970-06-15
SE381685B (sv) 1975-12-15
NL7000338A (sv) 1970-07-31
LU60139A1 (sv) 1970-03-06
CH495909A (de) 1970-09-15
JPS505292B1 (sv) 1975-03-03
DE1904288A1 (de) 1970-08-13
GB1268603A (en) 1972-03-29
ES375185A1 (es) 1972-04-01

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