US3884167A - Device for feeding, removing and stacking workpieces - Google Patents

Device for feeding, removing and stacking workpieces Download PDF

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Publication number
US3884167A
US3884167A US419690A US41969073A US3884167A US 3884167 A US3884167 A US 3884167A US 419690 A US419690 A US 419690A US 41969073 A US41969073 A US 41969073A US 3884167 A US3884167 A US 3884167A
Authority
US
United States
Prior art keywords
workpiece
supporting plate
stacking
feed rollers
sewing
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
US419690A
Other languages
English (en)
Inventor
Horst Bernewasser
Hans Scholl
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.)
Kochs Adler AG
Original Assignee
Kochs Adler AG
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 claimed from DE19722258430 external-priority patent/DE2258430C3/de
Application filed by Kochs Adler AG filed Critical Kochs Adler AG
Application granted granted Critical
Publication of US3884167A publication Critical patent/US3884167A/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
    • D05B33/00—Devices incorporated in sewing machines for supplying or removing the work
    • D05B33/02—Devices incorporated in sewing machines for supplying or removing the work and connected, for synchronous operation, with the work-feeding devices of the sewing machine
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B33/00—Devices incorporated in sewing machines for supplying or removing the work
    • 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

Definitions

  • ABSTRACT A device for feeding flexible workpieces into the workpiece clamping means of a sewing device and removing and stacking the same after sewing.
  • a workpiece supporting plate is provided at least with one feed roller which cooperates with a workpiece holding means. The feed roller does not rotate during feeding the workpiece into the workpiece clamps of the sewing machine but is driven during the return movement of the supporting plate, thus moving the workpiece part carried thereon from the supporting plate and dropping it upon a swingable stacking rod.
  • the invention relates to a device for feeding flexible workpieces into the workpiece clamps of a sewing device by means of a movable workpiece supporting plate, and for removing and stacking the same on a swingable stacking rod after termination of sewing.
  • the aforesaid automatic sewing units of the hitherto known construction are only suitable for workpieces capable to be completely received by the workpiece clamps of the sewing units, so that only the marginal edges project from the clamping devices for forming the seam.
  • the workpiece supporting plate is provided at least with one feed roller or roll, which cooperates with a workpiece holding means, the feed roller does not rotate during feeding the workpiece into the workpiece clamps of the sewing unit but is driven during the return movement of the workpiece supporting plate, thus moving the workpiece part carried thereon from the supporting plate and dropping it upon the stacking rod.
  • a stationarily arranged toothed rack and a gear wheel meshing herewith are provided.
  • the gear wheel is formed with a freewheeling, in order to drive the feed rollers in one direction of rotation by means of a shaft pivoted to the workpiece supporting plate,
  • FIG. 1 is a perspective view of the essential parts of the mechanism according to the invention.
  • FIGS. 2 to 5 are diagrammatic representations for illustrating the operation of the mechanism.
  • the sewing unit 1 diagrammatically represented in the drawings, comprises a sewing machine 2 which is guided in a not further described manner and according to the desired seam along the workpiece clamps 3 of the sewing unit 1.
  • the workpiece clamps 3 comprise an upper clamping plate 4, a lower clamping plate 5, a bracket 6 and a lifting cylinder 7 for closing and opening the two clamping plates 4, 5.
  • the bracket 6 is pivoted to the lower clamping plate 5, whereas the upper clamping plate 4 is articulated to the bracket 6.
  • the automatic sewing unit 1 is provided with a feeding device 8 substantially comprising a workpiece supporting plate 9, which is capable of being partly moved into the opened workpiece clamps 3.
  • the workpiece supporting plate 9 receiving upon its upper surface a workpiece 10, is provided with recesses 11 through which are projecting feed rollers 12 having a non-skid cover, in order to engage the bottom surface of the workpiece 10.
  • the feed rollers 12 pivoted about an axis 13 to the workpiece supporting plate 9, are connected with toothed belt wheels 14 which are in driving connection via toothed belts l5 and additional toothed belt wheels 16 with a shaft 17 also pivoted below the workpiece supporting plate 9.
  • each feed roller 12 is associated 'a workpiece holding means 24 having a loose roller 18 pivoted in a fork 19.
  • the fork 19 is provided at an U-shaped bar 20, which is capable to be lifted and lowered by means of an air cylinder 21 via a linkage 22 and a shaft 23, in order to lift or press the loose roller 18 from or upon the feed rollers 12.
  • the air cylinder 21 is located below the workpiece supporting plate 9.
  • the shaft 17 carries a gear wheel 25 meshing with a gear rack 26, which is stationarily mounted to the sewing unit 1.
  • a freewheeling 27 located in the gear wheel and causing the rotation of the shaft 17 only at the return movement of the workpiece supporting plate 9 from the workpiece clamps 3.
  • a shaft brake 28 comprising a brake wheel 29 secured to the shaft 17, a brake band 30 and a tension spring 31, in order to render more difficult the rotation of the feed rollers 12.
  • a baffle 31 extends from the workpiece clamps 3 to a swingable stacking bar 32, located below the plane of the workpiece supporting plate 9 in the clearance between the latter and the workpiece clamps 3.
  • the baffle 31 is formed with recesses 33 for the passage of the feed rollers 12 when the workpiece supporting plate 9 is moved into the workpiece clamps 3.
  • the loose rollers 18 are lifted from the feed rollers 12, in order that the workpieces to be sewn together may be placed on the workpiece supporting plate 9. After aligning of the lat ter the loose rollers 18 are lowered, thus clamping the workpieces 10, 10' therebetween and the feed rollers 12 (FIG. 2).
  • the workpiece supporting plate 9 is removed and simultaneously the sewing machine is operated, which moves during the sewing of the workpieces 10, 10' from the right to the left.
  • the feed rollers 12 are driven in the direction of the arrow (FlG. 4), so that still before returning of the workpiece supporting plate 9 in its start position, the part of the workpiece 10 still placed thereon, is moved from the workpiece supporting plate 9 and dropped into the dot-lined position (FIG. 4) at the stacking rod 32, whereas the other part is still clamped in the workpiece clamps 3.
  • a workpiece supporting plate means for moving said workpiece support plate in the direction to and from said workpiece supporting plate, said swingable holding means for clamping a workpiece during moving to said workpiece clamping means and releasing and displacing of said workpiece from said workpiece support plate during the removing of the same in an opposite direction, and stacking means including an oscilatable stacking rod for stacking means for oscillating said stacking rod in timed relationship to the releasing of said workpiece clamping means and said workpiece holding means, and said workpiece wherein said workpiece supporting plate is provided with recesses and said workpiece holding means comprises feed rollers pivoted below said workpiece supporting plate and penetrating said recesses, rotary pressure rollers arranged above said workpiece holding means and cooperating with said feed rollers, lifting and pressing means attached to said workpiece supporting plate for pressing said rotary presser roller against said
  • said driving means for said feed rollers comprise a stationary gear rack, a gear wheel meshing with said gear rack, a freewheel within said gear wheel, a shaft pivoted below said workpiece supporting plate and receiving said freewheel with said gear wheel, belt pulleys attached to said shaft, belt pulleys attached to said feed rollers, endless belts connecting said belt pulleys, and an adjustable brake means actuating upon said shaft.
  • each of said lifting and pressing means comprise a lever arm having a forked part for receiving said rotary presser rollers, a shaft pivoted below said workpiece supporting plate and carrying said lever arm, and a driving means for actuating said lever arm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US419690A 1972-11-29 1973-11-28 Device for feeding, removing and stacking workpieces Expired - Lifetime US3884167A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722258430 DE2258430C3 (de) 1972-11-29 Vorrichtung zum Zuführen und Entnehmen von Werkstücken in bzw. aus Näheinrichtungen

Publications (1)

Publication Number Publication Date
US3884167A true US3884167A (en) 1975-05-20

Family

ID=5863028

Family Applications (1)

Application Number Title Priority Date Filing Date
US419690A Expired - Lifetime US3884167A (en) 1972-11-29 1973-11-28 Device for feeding, removing and stacking workpieces

Country Status (3)

Country Link
US (1) US3884167A (enrdf_load_stackoverflow)
JP (1) JPS49135748A (enrdf_load_stackoverflow)
IT (1) IT1002040B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2326519A1 (fr) * 1975-10-03 1977-04-29 Necchi Spa Dispositif pour inserer le rabat de protection applique par des machines a coudre pour l'execution de poches tubulaires
US4299179A (en) * 1977-05-11 1981-11-10 Agence Nationale De Valorisation De La Recherche (Anvar) Method and installation for supplying a sewing machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052469A (en) * 1961-04-26 1962-09-04 Automatex Co Automatic drop-leaf stacker
US3099970A (en) * 1960-06-28 1963-08-06 Vanity Fair Mills Inc Garment working apparatus
US3474747A (en) * 1967-08-24 1969-10-28 Ivanhoe Research Corp Apparatus for manipulating a workpiece along an irregular contoured path through a workstation
US3618546A (en) * 1970-04-01 1971-11-09 Automated Components Inc Garment stacking apparatus
US3722436A (en) * 1971-02-23 1973-03-27 Mc Kee Button Co Garment working machine
US3769924A (en) * 1972-03-10 1973-11-06 W Rogers Profile sewing apparatus
US3789781A (en) * 1971-08-24 1974-02-05 Blue Bell Inc Sewing system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099970A (en) * 1960-06-28 1963-08-06 Vanity Fair Mills Inc Garment working apparatus
US3052469A (en) * 1961-04-26 1962-09-04 Automatex Co Automatic drop-leaf stacker
US3474747A (en) * 1967-08-24 1969-10-28 Ivanhoe Research Corp Apparatus for manipulating a workpiece along an irregular contoured path through a workstation
US3618546A (en) * 1970-04-01 1971-11-09 Automated Components Inc Garment stacking apparatus
US3722436A (en) * 1971-02-23 1973-03-27 Mc Kee Button Co Garment working machine
US3789781A (en) * 1971-08-24 1974-02-05 Blue Bell Inc Sewing system
US3769924A (en) * 1972-03-10 1973-11-06 W Rogers Profile sewing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2326519A1 (fr) * 1975-10-03 1977-04-29 Necchi Spa Dispositif pour inserer le rabat de protection applique par des machines a coudre pour l'execution de poches tubulaires
US4299179A (en) * 1977-05-11 1981-11-10 Agence Nationale De Valorisation De La Recherche (Anvar) Method and installation for supplying a sewing machine

Also Published As

Publication number Publication date
DE2258430B2 (de) 1977-06-08
DE2258430A1 (de) 1974-05-30
IT1002040B (it) 1976-05-20
JPS49135748A (enrdf_load_stackoverflow) 1974-12-27

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