US3899986A - Apparatus for guiding limp material - Google Patents

Apparatus for guiding limp material Download PDF

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Publication number
US3899986A
US3899986A US455259A US45525974A US3899986A US 3899986 A US3899986 A US 3899986A US 455259 A US455259 A US 455259A US 45525974 A US45525974 A US 45525974A US 3899986 A US3899986 A US 3899986A
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United States
Prior art keywords
wheel
axis
pulley
belt
feed
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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
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US455259A
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English (en)
Inventor
Jr William R Conner
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.)
Stahl Urban Co
Original Assignee
Stahl Urban 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
Application filed by Stahl Urban Co filed Critical Stahl Urban Co
Priority to US455259A priority Critical patent/US3899986A/en
Priority to DE19752512290 priority patent/DE2512290A1/de
Priority to IT21451/75A priority patent/IT1034427B/it
Priority to JP50036642A priority patent/JPS50130554A/ja
Priority to GB12968/75A priority patent/GB1500079A/en
Application granted granted Critical
Publication of US3899986A publication Critical patent/US3899986A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/10—Edge guides
    • D05B35/102—Edge guide control systems with edge sensors
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2207/00—Use of special elements
    • D05D2207/02—Pneumatic or hydraulic devices
    • D05D2207/04—Suction or blowing devices

Definitions

  • ABSTRACT Apparatus for guiding limp material, such as a piece or pieces of textile material, in an automatic guidance system comprising a guide wheel and a back-up between which material is fed.
  • the apparatus further includes means mounting the wheel for rotation on a generally horizontal axis and for swinging movement about a vertical swing axis offset from the wheel axis on the upstream side of the wheel axis with respect to the direction of material feed. Means is provided for swinging the wheel mounting means about its swing axis to effect lateral swinging movement of the wheel to shift the material.
  • the apparatus is characterized by means for positively driving the wheel in the direction of feed of the material.
  • the guidance apparatus of this invention is an improvement on guidance apparatus such as disclosed in my US. Pat. No. 3,636,898 for Edge Contour Guidance Control for Pieces of Material.
  • the above-mentioned patent discloses apparatus which senses the position of the edge of a piece or pieces of fabric by means of a fluidic sensor as the fabric is fed into a sewing machine.
  • the fluidic sensor controls laterally swingable guide wheels bearing on the material as it passes over a back-up plate, the guide wheels rolling on the material.
  • the fluidic sensor Upon the edge of the fabric deviating to one side or the other from a desired position, the fluidic sensor effects swinging movement of the guide wheels so as to shift the cloth and return the edge of the cloth to its desired location thus insuring stitching of the cloth along the desired sew line.
  • the above guidance apparatus provides automatic contour stitching of the material.
  • the apparatus further includes means mounting the wheel for rotation on a generally horizontal axis and for swinging movement about a vertical swing axis offset from the wheel axis on the upstream side of the wheel axis in respect to the direction of feed of the material.
  • the apparatus includes means for swinging the wheel mounting means about the swing axis to effect lateral swinging of the wheel to shift the material.
  • the apparatus is characterized in that means is provided for positively driving the wheel in the direction of feed of the material.
  • the apparatus is adapted to guide material into a sewing machine, the sewing machine having a needle and means for feeding material forward through the machine for stitching thereof by the needle, the guide wheel and back-up being located upstream from the needle and feeding means in respect to the direction of feed.
  • the wheel is positively driven in the direction of feed of the material to feed the material toward said feeding means and needle at a speed so related to the speed of feed of the material by said feeding means as to avoid deleterious stretching of the material between said guide wheel and said feeding means.
  • FIG. 1 is a front elevational view of the apparatus of this invention with parts omitted for clarity;
  • FIG. 2 is a vertical section taken on line 2-2 of FIG. 1, illustrating the path of a belt for driving the guide wheel;
  • FIG. 3 is a horizontal section taken on line 3-3 of FIG. 2, illustrating means for effecting swinging movement above the guide wheel and with parts above line 33 FIG. 2 shown in phantom to illustrate the relationship between the various parts; and
  • FIG. 4 is a plan illustrating the location of the guide wheel relative to the needle and feed dogs of a sewing machine.
  • apparatus of this invention is indicated in its entirety at 1 for guiding limp material M (e.g., one or more pieces of textile cloth) in an automatic guidance system 3 (shown in phantom). More particularly, guidance system 3 is substantially the same as the system shown in my coassigned US. Pat. No. 3,636,898 and which is incorporated by reference in this disclosure. More specifically, guidance system 3 automatically guides one or more pieces of material through a sewing machine (not shown) for stitching the material along one edge thereof, with the pieces of material automatically guided in accordance with the contour (either straight or curved) of its respective edge for contour seaming. It will be understood that the apparatus 1 of this invention is an improvement of the means mounting guide wheels 61 and 151 in my above-mentioned US. patent.
  • the guiding apparatus 1 of this invention comprises a guide wheel 5 and back-up means 7 (a back-up plate or another guide wheel) between which material M is fed.
  • Means mounts the guide wheel for rotation on a generally horizontal wheel axis W passing through the center of the guide wheel and for lateral swinging movement (as shown by the arrow in FIG. 3) about a generally vertical swing axis S offset from the wheel axis W on the upstream side of the wheel axis in respect to the direction of feed of material M, as noted by the arrow in FIG. 2.
  • Means as indicated at 11 see FIG.
  • Means 13 is provided for positively driving wheel 5 in the direction of feed of material M.
  • FIG. 4 shows the location of the guide wheel 5 and back-up 7 relative to the needle and feeding means (feed dogs) of a sewing machine indicated at SM corresponding to the sewing machine indicated at 5 in FIG. I of U.S. Pat. No. 3,636,898.
  • the needle of the sewing machine is indicated at N and the feed dogs at F.
  • the direction of feed of material through the machine is indicated by the arrow.
  • the guide wheel 5 and its back-up 7 are located upstream from needle N and the feeding means or feed dogs F in respect to the direction of feed, which is indicated by the arrow.
  • guidance system 3 includes a pneumatic or fluidic edge sensor 15 (not shown in its entirety herein) comprising an air nozzle 17 positioned above back-up 7 so as to direct a continuous stream of air toward an air inlet hole 19 in back-up 7.
  • Air nozzle 17 is interconnected to an air proportioning device (not shown herein, but similar to the air proportioning device indicated at 247 in my above-mentioned US. patent).
  • the desired or reference position of material M may be considered the position shown when the material edge E halfway closes inlet hole 19. Upon the edge E moving from its reference position, the flow of air inlet passage 19 varies and the air proportioning device effects actuation of means 11 for swinging the guide wheel and for shifting the material E toward its reference position.
  • apparatus of this invention comprises a support constituted by a frame arm 21 pivotally secured, as indicated at 23, to guidance system 3 or to other suitable structure such as the frame of an automatic sewing head.
  • the support or frame arm 21 carries an antifriction bearing 25 on its outer end.
  • Wheel mounting means 9 is shown to comprise a wheel carrier constituted by a clevis or stirrup 27 having two spaced legs 29a, 29b between which a wheel pulley 31 is journalled on a pin 33, the axis of the pin constituting the wheel axis W.
  • a steering arm 35 extends rearwardly (with respect to the direction of feed of material M) from clevis 27 for purposes as will appear.
  • a hollow tubular shaft 37 having a bore 39 therethrough, extends vertically from the upper face of clevis 27 and is received by the inner race of bearing 25, thereby journalling the clevis in the bearing for lateral swinging movement of guide wheel 5.
  • Means 13 for positively driving guide wheel 5 in the direction of feed material M is shown to comprise a belt and pulley drive including a continuous belt 41 trained around wheel pulley 31 and around a drive pulley 43 located remote from the guide wheel.
  • Drive pulley 43 is shown to be mounted on the outer end of a countershaft 45.
  • the countershaft is journalled in a bearing housing 47 secured to frame arm 21 by means of an angle bracket 49.
  • Belt 41 is preferably of molded elastomeric material and is of circular cross section. However, it will be understood that belts of other cross sections, including flat belts or round belts having a flat outer surface, may be used.
  • belt 41 is trained around wheel pulley 31 generally centrally thereof and is received in a circumferential groove 51 therein (see FIG. 2).
  • the intermediate reaches of belt 41 are spaced close relative to one another and are parallel.
  • These intermediate reaches of the belt pass through bore 39 of hollow shaft 37.
  • Idler pulleys 53 and a guide bar 55 extending horizontally between clevis legs 29a, 29b maintain the intermediate reaches of the belt substantially parallel to one another as they pass through bore 39 of shaft 37.
  • Belt 41 extends partially around the periphery of wheel pulley 31 and is of such cross section as to extend at least in part beyond the periphery of the wheel pulley.
  • the wheel pulley further includes a pair of circumferential grooves (not shown) similar to groove 51 on either side of groove 51.
  • O-rings 56 of a resilient nonslip elastomeric material are disposed in the outer grooves and these O-rings are of approximately the same cross section as belt 41 whereby the outer periphery of the O-rings and the outer periphery of belt 41 at the bottom of the wheel pulley form gripping surface 57 for guide wheel 5 and are thus adapted to positively engage material M on the back-up 7 and thus to positively drive the material in the direction of feed as shown by the arrow in FIG. 2.
  • Countershaft 45 is driven by a pulley 59 on the inner end of the countershaft, this pulley being driven by means of a drive belt 61 and a variable-speed drive unit 63 (shown in phantom) such as is manufactured by the Zero-Max Company of Minneapolis, Minnesota.
  • This variable drive selectively varies the speed at which guide wheel 5 may be driven.
  • guide wheel 5 is driven at substantially the same speed as material M is fed into the sewing head thereby eliminating stretching of the material (even of stretchable lightweight knits) between the guide wheel and feed dogs of the sewing head. In some applications, however, a slight amount of stretch in the material may be desirable.
  • variable drive unit 63 may be adjusted so that the guide wheel is driven at a speed somewhat slower than the speed at which material M is fed into the machine, thereby to stretch the material a predetermined amount.
  • the speed of the drive wheel may be increased so as to overdrive the fabric toward the needle of the sewing head.
  • frame arm 21 is pivotally secured to the guidance assembly 3.
  • the frame arm is pivotally movable between a lowered operating position (shown in FIGS. 1 and 2) in which guide wheel 5 is in gripping engagement with material M on back-up 7 and a raised retracted position (not shown) in which the guide wheel is clear of the material.
  • the frame arm is raised and lowered by means of an air cylinder assembly 65 (shown in phantom in FIG. 1) interposed between the frame arm and guidance assembly 3.
  • the frame arm is biased toward its lowered operating position by means of a tension coil spring 67. In other instances, it will be understood that the frame arm may be biased toward its lowered operating position by means of application of air pressure to air cylinder assembly 65.
  • a linear actuator Interconnected between clevis 27 and frame arm 21 is a linear actuator, more specifically a double rod end air cylinder assembly 69 (see FIG. 3) pivotally interconnected to the frame arm 21 as indicated at 71 by a universal bearing.
  • This air cylinder has a piston (not shown) movable therewithin and a piston rod 73 extending from both ends thereof with one of its ends interconnected to steering arm 35 of clevis 27 as indicated at 75 by a universal bearing at a point spaced from swing axis S.
  • This air cylinder constitutes means 11 for swinging the clevis about swing axis S so as to effect lateral swinging movement of guide wheel 5 and to effect lateral shifting of material M relative to a fixed reference (i.e., relative to air inlet hole 19 or relative to the sewing needle of the sewing head).
  • Air cylinder 69 is pressurized by means of air lines 77 and 79 at opposite ends of the air cylinder body. These air lines are supplied with pressurized air by the previously mentioned air proportioning device.
  • the guidance apparatus 1 of this invention may be adapted for use on equipment other than contour stitching apparatus.
  • the guidance apparatus may be used to guide limp sheet plastic material in heat-sealing apparatus or in adhesive bonding apparatus or other type equipment.
  • Apparatus for guiding material such as a piece of textile material, in an automatic guidance system
  • said apparatus comprising a guide wheel and a back-up between which the material is fed, means mounting the wheel for rotation on a generally horizontal axis and for swinging movement about a generally vertical swing axis offset from the wheel axis on the upstream side of the wheel axis in respect to the direction of feed, and means for swinging said wheel mounting means about said swing axis to effect lateral swinging of the wheel to shift the material
  • means is provided for positively driving the wheel in the direction of feed of the material
  • said drive means comprises a belt and pulley drive wherein the belt is trained around a pulley on the wheel axis
  • said drive means further comprises a drive pulley located remote from said guide wheel, said belt being trained around said wheel pulley and said drive pulley
  • said apparatus further comprises a frame adapted to be secured to a sewing machine or the like and bearing means carried by the frame mounting said wheel for
  • Apparatus for guiding material such as a piece of textile material, in an automatic guidance system
  • said apparatus comprising a guide wheel and a abck-up between which the material is fed, means mounting the wheel for rotation on a generally horizontal axis and for swinging movement about a generally vertical swing axis offset from the wheel axis on the upstream side of the wheel axis in respect to the direction of feed, and means for swinging said wheel mounting means about said swing axis to effect lateral swinging of the wheel to shift the material
  • means is provided for positively driving the wheel in the direction of feed of the material
  • said drive means comprises a belt and pulley drive wherein the belt is trained around a pulley on the wheel axis, wherein said pulley on said wheel axis constitutes said wheel and said belt is trained therearound and extends at least in part beyond the periphery of the wheel thereby to constitute a gripping surface of the wheel engageable with said material, further comprising one or more rings of resilient, nonslip material
  • Apparatus for guiding material such as a piece of textile material, in an automatic guidance system
  • said apparatus comprising a guide wheel and a back-up between which the material is fed, means mounting the wheel for rotation on a generally horizontal axis and for swinging movement about a generally vertical swing axis offset from the wheel axis on the upstream side of the wheel axis in respect to the direction of feed, and means for swinging said wheel mounting means about said swing axis to effect lateral swinging of the wheel to shift the material
  • means is provided for positively driving the wheel in the direction of feed of the material
  • said drive means comprises a belt and pulley drive wherein the belt is trained around a pulley on the wheel axis, adapted for use on a sewing machine or the like
  • said drive means includes a variable speed drive operable in response to the speed of the feed of the material into the sewing machine, said variable speed drive positively driving said wheel substantially at the speed of feed of said material.
  • Apparatus for guiding material such as a piece of textile material in an automatic guidance system, said apparatus comprising a guide wheel and a back-up between which the material is fed, means mounting the wheel for rotation on a generally horizontal axis and for swinging movement about a generally vertical swing axis otfset from the wheel axis on the upstream side of the wheel axis in respect to the direction of feed, and means for swinging said wheel mounting means about said swing axis to effect lateral swinging of the wheel to shift the material, characterized in that means is provided for positively driving the wheel in the direction of feed of the material, wherein said drive means comprises a belt and pulley drive wherein the belt is trained around a pulley on the wheel axis, wherein said drive means further comprises a drive pulley located remote from said guide wheel, said belt being trained around said wheel pulley and said drive pulley, and wherein said apparatus further comprises a frame adapted to be secured to a sewing machine or the like and bearing means carried by the frame mounting said
  • An automatic guidance system for guiding material, such as a piece of textile material, into a sewing machine, said sewing machine having a needle and means for feeding material forward through the machine for stitching thereof by the needle, said system comprising a guide wheel and a back-up between which the material is fed to the needle and said feeding means, said guide wheel and back-up being located upstream from the needle and feeding means in respect to the direction of feed, means mounting the wheel for rotation on a generally horizontal axis and for swinging movement about a generally vertical swing axis offset from the wheel axis on the upstream side of the wheel axis in respect to the direction of feed, and means for .swinging said wheel about said swing axis to effect lateral swinging of the wheel to shift the material, wherein the improvement comprises the provision of means for positively driving the wheel in the direction of feed of the material to feed the material toward said feeding means and needle at a speed so related to the speed of feed of the material by said feeding means as to avoid deleterious stretching of the material between said guide wheel and said feeding means.
  • An automatic guidance system as set forth in claim 5 comprising a support, a tubular shaft joumalled in said support for rotation on said vertical swing axis, and a wheel carrier on the shaft carrying the wheel downstream from said swing axis, said drive means for the wheel comprising a belt and pulley drive comprising a pulley carried by said support and a belt trained around said pulley, extending through said shaft, and trained around said wheel.
  • said drive means for the wheel includes a variable speed drive for varying the speed of the wheel in accordance with variation in the speed of feed of the material by said feeding means.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US455259A 1974-03-27 1974-03-27 Apparatus for guiding limp material Expired - Lifetime US3899986A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US455259A US3899986A (en) 1974-03-27 1974-03-27 Apparatus for guiding limp material
DE19752512290 DE2512290A1 (de) 1974-03-27 1975-03-20 Automatische fuehrungsvorrichtung zum einfuehren von material in eine naehmaschine
IT21451/75A IT1034427B (it) 1974-03-27 1975-03-20 Apparecchio per la guida di ma teriali flessibili
JP50036642A JPS50130554A (enrdf_load_stackoverflow) 1974-03-27 1975-03-26
GB12968/75A GB1500079A (en) 1974-03-27 1975-03-27 Sewing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US455259A US3899986A (en) 1974-03-27 1974-03-27 Apparatus for guiding limp material

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US3899986A true US3899986A (en) 1975-08-19

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US455259A Expired - Lifetime US3899986A (en) 1974-03-27 1974-03-27 Apparatus for guiding limp material

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US (1) US3899986A (enrdf_load_stackoverflow)
JP (1) JPS50130554A (enrdf_load_stackoverflow)
DE (1) DE2512290A1 (enrdf_load_stackoverflow)
GB (1) GB1500079A (enrdf_load_stackoverflow)
IT (1) IT1034427B (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147120A (en) * 1977-09-14 1979-04-03 Union Special Corporation Auxiliary feed mechanism for sewing machines
US4380205A (en) * 1980-07-23 1983-04-19 Kabushiki Kaisha Fujimi Hoseisho Guidance apparatus for a sewing machine
FR2555209A1 (fr) * 1983-11-23 1985-05-24 Normande Confection Dispositif pour l'evacuation selective de pieces de vetement sur une machine a coudre
FR2585683A1 (fr) * 1985-08-02 1987-02-06 Bertin & Cie Dispositif d'entrainement pour ensemble de guidage de feuilles de materiau souple destinees a former un assemblage tridimensionnel
EP0216644A1 (fr) * 1985-08-02 1987-04-01 Bertin & Cie Ensemble de guidage de feuilles de matériau souple destinées à former un assemblage tridimensionnel
EP0292135A3 (en) * 1987-05-20 1989-02-15 Porter Sewing Machines, Inc. Method and apparatus for guiding fabric to a sewing machine
FR2640476A1 (fr) * 1988-12-19 1990-06-22 Miivar Procedes de fabrication automatique de produits en feuilles souples constitues de plusieurs pieces assemblees tels que des vetements ou sous-vetements ainsi que dispositifs pour la mise en oeuvre de ces procedes
WO2001092627A1 (de) * 2000-05-29 2001-12-06 Schmale-Holding Gmbh & Co. Vorrichtung zum kantengenauen ausrichten einer warenbahn
CN105937098A (zh) * 2016-06-23 2016-09-14 晋江力达机械有限公司 一种紧凑型多点式纠偏机构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61206478A (ja) * 1985-03-12 1986-09-12 工業技術院長 ミシンの被縫製物案内装置
JPS61206476A (ja) * 1985-03-12 1986-09-12 工業技術院長 平板状の被加工物の移送装置
JPH085501B2 (ja) * 1987-04-27 1996-01-24 三菱瓦斯化学株式会社 鮮度保持剤収納用仕切り膜
DE102015200720B4 (de) * 2014-07-02 2021-05-20 Adient Luxembourg Holding S.À R.L. Zuführeinrichtung und Fertigungsvorrichtung zum Vernähen von Zuschnitten gleicher Kontur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1723786A (en) * 1926-02-11 1929-08-06 Louis J Elsas Feeding device
US2290123A (en) * 1939-09-06 1942-07-14 John N Jeffers Material feed control apparatus for sewing machines
US3417718A (en) * 1963-03-23 1968-12-24 Melka Ab System for automatically guiding the work in a sewing machine
US3472187A (en) * 1967-12-19 1969-10-14 Singer Co Sewing machine automatic work steering mechanisms

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1723786A (en) * 1926-02-11 1929-08-06 Louis J Elsas Feeding device
US2290123A (en) * 1939-09-06 1942-07-14 John N Jeffers Material feed control apparatus for sewing machines
US3417718A (en) * 1963-03-23 1968-12-24 Melka Ab System for automatically guiding the work in a sewing machine
US3472187A (en) * 1967-12-19 1969-10-14 Singer Co Sewing machine automatic work steering mechanisms

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147120A (en) * 1977-09-14 1979-04-03 Union Special Corporation Auxiliary feed mechanism for sewing machines
US4380205A (en) * 1980-07-23 1983-04-19 Kabushiki Kaisha Fujimi Hoseisho Guidance apparatus for a sewing machine
FR2555209A1 (fr) * 1983-11-23 1985-05-24 Normande Confection Dispositif pour l'evacuation selective de pieces de vetement sur une machine a coudre
FR2585683A1 (fr) * 1985-08-02 1987-02-06 Bertin & Cie Dispositif d'entrainement pour ensemble de guidage de feuilles de materiau souple destinees a former un assemblage tridimensionnel
EP0216644A1 (fr) * 1985-08-02 1987-04-01 Bertin & Cie Ensemble de guidage de feuilles de matériau souple destinées à former un assemblage tridimensionnel
EP0292135A3 (en) * 1987-05-20 1989-02-15 Porter Sewing Machines, Inc. Method and apparatus for guiding fabric to a sewing machine
FR2640476A1 (fr) * 1988-12-19 1990-06-22 Miivar Procedes de fabrication automatique de produits en feuilles souples constitues de plusieurs pieces assemblees tels que des vetements ou sous-vetements ainsi que dispositifs pour la mise en oeuvre de ces procedes
EP0375524A1 (fr) * 1988-12-19 1990-06-27 Miivar Zac De Penessuy Procédés de fabrication automatique de produits en feuilles souples constitués de plusieurs pièces assemblées tels que des vêtements ou sous-vêtements ainsi que dispositifs pour la mise en oeuvre de ces procédés
WO2001092627A1 (de) * 2000-05-29 2001-12-06 Schmale-Holding Gmbh & Co. Vorrichtung zum kantengenauen ausrichten einer warenbahn
CN105937098A (zh) * 2016-06-23 2016-09-14 晋江力达机械有限公司 一种紧凑型多点式纠偏机构

Also Published As

Publication number Publication date
GB1500079A (en) 1978-02-08
IT1034427B (it) 1979-09-10
JPS50130554A (enrdf_load_stackoverflow) 1975-10-15
DE2512290A1 (de) 1975-10-09

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