US3818554A - Pattern shearing device for pile fabrics - Google Patents

Pattern shearing device for pile fabrics Download PDF

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Publication number
US3818554A
US3818554A US00222075A US22207572A US3818554A US 3818554 A US3818554 A US 3818554A US 00222075 A US00222075 A US 00222075A US 22207572 A US22207572 A US 22207572A US 3818554 A US3818554 A US 3818554A
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US
United States
Prior art keywords
roller
belt
axis
rotary knife
shear
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
US00222075A
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English (en)
Inventor
R Davidson
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.)
Curtis & Marble Machine Co us
CURTIS MARBLE MACHINE CO
Original Assignee
CURTIS MARBLE MACHINE CO
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 BE794351D priority Critical patent/BE794351A/fr
Application filed by CURTIS MARBLE MACHINE CO filed Critical CURTIS MARBLE MACHINE CO
Priority to US00222075A priority patent/US3818554A/en
Priority to DE2251501A priority patent/DE2251501A1/de
Priority to GB5684972A priority patent/GB1408785A/en
Priority to CH90573A priority patent/CH572122A5/xx
Priority to JP48009972A priority patent/JPS4882189A/ja
Priority to FR7302560A priority patent/FR2169956B3/fr
Priority to IT19734/73A priority patent/IT978578B/it
Application granted granted Critical
Publication of US3818554A publication Critical patent/US3818554A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C23/00—Making patterns or designs on fabrics
    • D06C23/02—Making patterns or designs on fabrics by singeing, teasing, shearing, etching or brushing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C13/00—Shearing, clipping or cropping surfaces of textile fabrics; Pile cutting; Trimming seamed edges

Definitions

  • ABSTRACT A textile shear having a blade and an endless belt with an embossed surface for supporting a pile fabric adjacent the knife.
  • the endless belt mounted on supporting means pivotable about a vertical axis for ease in pattern changing, includes longitudinal ridges to prevent longitudinal sliding thereof along a driven supporting roller and a carved pattern portion more elastic than the portion thereof being driven.
  • the project of accomplishing it in this way is particularly desirable because of the fact that shearing is a necessary secondary operation in any case.
  • This has been done by introducing into the conventional shear an added configured roll over which the tufted fabric passes.
  • the high spots in the roll press the tufts closer to the shear and the low spots allow it to pass by the shear at a greater distance.
  • the difficulty experienced has been that, when such a configured roll was small in diameter, the cutting of the tufts took place adequately, but the pattern repeated itself every circumference of the roll and variety in pattern was not possible.
  • Another object of this invention is the provision of a textile shear for use with pile fabric in which the distance within which the pattern repeats. can be as long as desired.
  • a further object of the present invention is the provision of a shear for use with pile fabric in which the fabric is held on a sharp radius of curvature at the point of shearing and yet the pattern does not repeat frequently.
  • a still further object of the invention is the provision of a shear for use in sculpturing tufted fabric in which the pattern produced is easily changed.
  • the invention consists of a textile shear having a rotary knife mounted for rotation about a first axis and a bed knife located adjacent the path of the knife as it rotates.
  • a roller is mounted for rotation LII about an axis which is parallel to and spaced from the said first axis and an endless belt extends around the roller and has an embossed surface directed toward the rotary knife.
  • the roller is mounted for swinging action about one end on occasion on an axis which is perpendicular to the said first axis.
  • the invention also consists of a method for patternshearing a tufted fabric consisting of the steps of passing the tufted fabric under tension between a rotary knife and a roller having a radius of curvature substantially less than that of the rotary knife; the fabric is drawn over the roller away from the rotary knife to subtend a substantial portion of the periphery of the roller and the fabric is interposed between the roller and an embossed element.
  • the invention also includes a belt for the patternshearing of tufted fabric having an endless driven portion of substantial width formed of relatively inelastic material and a carved portion fastened to one surface of the driven portion and formed of a relatively elastic material.
  • the invention also includes a method of forming a carved belt comprising the steps of providing an endless portion of substantial width formed of a relatively inelastic material and providing a layer of easily carved material for attachment to one surface of the said portion. A pattern is then applied to the surface of the layer, parts of the layer are removed in accordance with the pattern to form recesses exposing the said surface of theelement, and pouring an elastic plastic into the recesses for attachment to the surface of the element exposed by the surfaces. The remainder of the said layer is then removed.
  • FIG. 1 is a perspective view of a textile shear incorporating the principle of the present invention
  • FIG. 2 is a vertical sectional view of the invention taken on the line II-II of FIG. 1,
  • FIG. 3 is a vertical sectional view of a portion of the textile shear
  • FIG. 3A is a perspective view of a portion of the shear
  • FIG. 4 is a view of a portion of the shear taken on the line IV-IV of FIG. 3,
  • FIG. 5 is a perspective view of a portion of the shear
  • FIG. 6 is a sectional view of the shear taken on the line VlVl of FIG. 5, and
  • FIGS. 7 through IOiIIustrate various steps of forming the belt, which is part of the shear.
  • the textile shear indicated generally by the reference numeral 10
  • a metal detector apparatus 1 l a front frame 12
  • a front shear section 13 a guiding system 14
  • a guider sensor and positioner 15 all leading, finally, to the textile shear 10, which is the subject of the present invention.
  • Both the shear 10 and the front shear section 13 are provided with vacuum lint operators 16 and 17, respectively.
  • the guiding system 14 is provided with a roll 30 over which the fabric 18 passes, this roll being provided with a brake for providing a drag on the fabric as it passes through the various pieces of equipment.
  • the shear is provided near its output with a drive roll 19 which pulls the fabric through the main operating parts of the shear 10.
  • An idler roll 20 is resiliently mounted between the operative area of the shear and the drive roll 19.
  • the shear 10 is provided with a rotary knife 21, a bed knife 22, and a roller 23, as well as a belt 24 passing around the roller 23 and hanging down into the body of the housing of the shear.
  • the rotary knife 21 is provided with helical blades 25 and is mounted for rotation about a horizontal axis.
  • a bed knife 22 is mounted adjacent the rotary knife 21 with its operating edge lying almost exactly under the horizontal axis about which that knife rotates.
  • the roller 23 is mounted abouta horizontal axis which is parallel to and spaced from the axis of the rotary knife 21 and the endless belt 24 passes over the roller 23 in the same direction that the fabric 18 passes.
  • the fabric 18 is shown as in the form of tufted fabric having tufts 26 which are directed toward the blades 25 of .the knife 21, the undersurface of the fabric engaging the belt 24 which is provided with upwardly extending bosses 27.
  • bosses is used to indicate raised portions of the belt, but may have any desired pattern or configuration.
  • the underside of the belt 24 is provided with a ridge 28 which engages a suitable V-shaped groove 29 formed at one end of the roll 23 to guide the belt against movement longitudinally of the axis of the roll 23.
  • FIG. 4 shows the appearance of the belt 24 including the raised portions or bosses 27. It also shows the location of the ridge 28 at one end of the belt as well as a similar ridge 31 at the other end of the belt.
  • the belt consists of a driven portion 32 of substantial width formed of a relatively inelastic material and a carved portion consisting of the bosses 27 fastened to the upper surface of the driven portion and formed of a relatively elastic material which, in the preferred embodiment, is polyurethane of 50 durometer.
  • the basic belt or driven portion 32 is the fabric impregnated with rubber.
  • the roller 23 is mounted for swinging action about one end on occasion, the axis of swinging being vertical or at right angles to the horizontal plane in which the rotary shear 21 is rotated.
  • the roller has a diameter which is substantially smaller than that of the blade 25 of the rotary knife 21 and is rotatably mounted on a beam 33 which swings about the same axis.
  • the beam 33 at the other end is provided with a latching mechanism 34 to hold it in place during normal operation.
  • the bottom of the beam 33 adjacent the latching mechanism 34 slides along and is supported by a horizontal beam 35 forming part of the framework of the housing of the machine.
  • abutment 37 Extending from the housing of the shear is an abutment 37 having a vertical drive shaft 38 suitably mounted in bearings acting both as a hinge pivot and as a drive shaft.
  • the top of the shaft 38 is provided with a bevel gear 39 which engages a bevel gear 41 on the roller 23.
  • Suitable guide shafts 42 extend parallel to the surface of the beam 33, so that the inner surface of the belt 24 has smooth, round surfaces to pass around.
  • the roller 23 and the drive roll 19 are driven by the same motor 43 and a drive means 44 connects the motor to the roller 23 and the drive roll 19 to cause the roller to have a peripheral speed substantially less than that of the drive roll, so that the drive roll controls the speed of the fabric 18.
  • the apparatus provides a method for pattern-shearing of a tufted fabric consisting of the steps of passing the pile fabric 18 under tension between the rotary knife 21 and the roller 23 having a radius of curvature substantially less than that of the rotary knife.
  • the fabric 18 is drawn over the roller 23 as shown in FIG. 3 and directed away from the rotary knife 21 to subtend a substantial portion of the periphery of the roller, the fabric 18 passing between the roller 23 and its belt 24, on the one hand, and the rotary knife 21, on the other hand.
  • the roller 23 is driven at a peripheral speed which is substantially less than the linear speed of the fabric as it passes between the rotary knife and the roller.
  • the bosses 27 on the belt 24 cause similar portions of the fabric 18 to be raised higher than the portions which have no bosses, so that the rotary knife 21 by means of its blade 25 operative with the bed knife 22 can shear the raised parts of the tufts 26 shorter than the others. After the fabric passes the roller 23 and the belt 24, the fabric returns to its former condition, but the raised tufts are now shorter and constitute cavities in the tufted fabric,
  • the belt consists of an endless driven portion 32 of substantial width formed of a relatively inelastic material which, in the preferred embodiment, is a fabric which is rubberimpregnated.
  • a suitable V-shaped ridge 28 is provided for guiding the belt on the roll 23.
  • a carved portion 27a remains after the operation is completed.
  • a sheet 45 of relatively easily carved material such as expanded polyethylene, is applied to the upper surface ofthe driven portion 32.
  • a pattern or design 46 is drawn on its surface and a cut is made down to the upper surface of the driven portion 32.
  • a margin 47 is left.
  • the present invention provides a very desirable and flexible manner of providing a patterned cutting or shearing of the tufted fabric 18.
  • it is only essential to change the belt 24 by releasing the latching mechanism 34 and swinging the roller 23 along with its beam 33 outwardly about the pivot shaft 38.
  • the new belt is slid on and the beam 33 swung back into its original position transversely of the shear and the latching mechanism 34 re-fastened.
  • the belt 24 can be made as long a loop as is desirable to provide for infrequent change of pattern or low repeatability.
  • the method of making the belt is inexpensive and allows a great latitude in selection of pattern.
  • the making of a belt can take place in the textile plant in which the shear is used so that a changeover of pattern takes very little time.
  • a textile shear comprising:
  • a rotary knife mounted for rotation about a first axis
  • a roller mounted for rotation about an axis which is parallel to and spaced from the said first axis, the roller being also mounted for swinging action about one end on occasion about a second axes which is perpendicular to the said first axis the roller having a diameter substantially smaller than the rotary knife and being rotatably mounted on a beam which swings about the second axis,
  • a belt extending around the roller and having an embossed surface directed toward the rotary knife, the driven portion of the belt having a plurality of longitudinal ridges that engage peripheral grooves formed on the roller to prevent the belt from sliding longitudinally of the roller, the belt consisting of a drive portion that lies against the roller and a carved portion that carries a tufted fabric and holds it against the rotary knife, the carved portion being substantially more elastic than the driven portion,
US00222075A 1972-01-31 1972-01-31 Pattern shearing device for pile fabrics Expired - Lifetime US3818554A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE794351D BE794351A (fr) 1972-01-31 Tondeuse pour textiles
US00222075A US3818554A (en) 1972-01-31 1972-01-31 Pattern shearing device for pile fabrics
DE2251501A DE2251501A1 (de) 1972-01-31 1972-10-20 Textilschere
GB5684972A GB1408785A (en) 1972-01-31 1972-12-08 Textile shear
CH90573A CH572122A5 (fr) 1972-01-31 1973-01-22
JP48009972A JPS4882189A (fr) 1972-01-31 1973-01-25
FR7302560A FR2169956B3 (fr) 1972-01-31 1973-01-25
IT19734/73A IT978578B (it) 1972-01-31 1973-01-29 Cimatrice per tessuti

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00222075A US3818554A (en) 1972-01-31 1972-01-31 Pattern shearing device for pile fabrics

Publications (1)

Publication Number Publication Date
US3818554A true US3818554A (en) 1974-06-25

Family

ID=22830710

Family Applications (1)

Application Number Title Priority Date Filing Date
US00222075A Expired - Lifetime US3818554A (en) 1972-01-31 1972-01-31 Pattern shearing device for pile fabrics

Country Status (8)

Country Link
US (1) US3818554A (fr)
JP (1) JPS4882189A (fr)
BE (1) BE794351A (fr)
CH (1) CH572122A5 (fr)
DE (1) DE2251501A1 (fr)
FR (1) FR2169956B3 (fr)
GB (1) GB1408785A (fr)
IT (1) IT978578B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0687759A1 (fr) * 1994-06-13 1995-12-20 David Wing Bong Wong Procédé et dispositif pour l'abrasion mécanique d'une étoffe
US6035749A (en) * 1997-07-22 2000-03-14 Haselwander; Jack G. Patterned shearing of pile fabrics
US6722000B1 (en) * 2002-11-20 2004-04-20 Product Concepts Residential Llc Tip shearing carpet with moisture control
US20050045082A1 (en) * 2003-01-23 2005-03-03 Weiner Robert S. Tip shearing pattern in carpet

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53111188A (en) * 1977-03-07 1978-09-28 Sakano Orimono Kk Production of carpet with float pattern
JPS6075662A (ja) * 1983-09-29 1985-04-30 株式会社中川製作所 パイル織物表面のパイル剪毛装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US249859A (en) * 1881-11-22 Cloth-finishing machine
US288109A (en) * 1883-11-06 Elevator attachment to ships gang-platforms
US403682A (en) * 1889-05-21 lowden
US1033317A (en) * 1911-03-16 1912-07-23 C J Hartley Co Supporting and driving device for conveyers and the like.
US1628436A (en) * 1923-01-05 1927-05-10 Universal Candy And Chocolate Conveyer belt and means for guiding the same
US1708763A (en) * 1927-08-27 1929-04-09 Hollander & Son Inc A Method and means for producing embossed fur
US1737085A (en) * 1925-09-22 1929-11-26 Frederick W Horstmann Means for producing designs in furs
US2470575A (en) * 1945-10-18 1949-05-17 Dan River Mills Inc Cloth inspection and handling system
US2977660A (en) * 1958-07-28 1961-04-04 Lees & Sons Co James Pattern shearing apparatus for pile fabric
US3327839A (en) * 1965-07-08 1967-06-27 Ajem Lab Inc Conveyor apparatus

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US249859A (en) * 1881-11-22 Cloth-finishing machine
US288109A (en) * 1883-11-06 Elevator attachment to ships gang-platforms
US403682A (en) * 1889-05-21 lowden
US1033317A (en) * 1911-03-16 1912-07-23 C J Hartley Co Supporting and driving device for conveyers and the like.
US1628436A (en) * 1923-01-05 1927-05-10 Universal Candy And Chocolate Conveyer belt and means for guiding the same
US1737085A (en) * 1925-09-22 1929-11-26 Frederick W Horstmann Means for producing designs in furs
US1708763A (en) * 1927-08-27 1929-04-09 Hollander & Son Inc A Method and means for producing embossed fur
US2470575A (en) * 1945-10-18 1949-05-17 Dan River Mills Inc Cloth inspection and handling system
US2977660A (en) * 1958-07-28 1961-04-04 Lees & Sons Co James Pattern shearing apparatus for pile fabric
US3327839A (en) * 1965-07-08 1967-06-27 Ajem Lab Inc Conveyor apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Carpet and Rug Progress, by Reg. Burnett, Modern Textiles, November, 1970, pps. 39, 42. *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0687759A1 (fr) * 1994-06-13 1995-12-20 David Wing Bong Wong Procédé et dispositif pour l'abrasion mécanique d'une étoffe
US6035749A (en) * 1997-07-22 2000-03-14 Haselwander; Jack G. Patterned shearing of pile fabrics
US6722000B1 (en) * 2002-11-20 2004-04-20 Product Concepts Residential Llc Tip shearing carpet with moisture control
US20050045082A1 (en) * 2003-01-23 2005-03-03 Weiner Robert S. Tip shearing pattern in carpet
US7146693B2 (en) * 2003-01-23 2006-12-12 Weiner Robert S Tip shearing pattern in carpet

Also Published As

Publication number Publication date
FR2169956A1 (fr) 1973-09-14
IT978578B (it) 1974-09-20
FR2169956B3 (fr) 1976-01-30
GB1408785A (en) 1975-10-08
DE2251501A1 (de) 1973-08-09
BE794351A (fr) 1973-07-23
CH572122A5 (fr) 1976-01-30
JPS4882189A (fr) 1973-11-02

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