EP0267816A1 - Verfahren und Vorrichtung, um die Ecke zweier Textilwerkstücke auf eine Nähmaschine zu introduzieren und positionieren - Google Patents

Verfahren und Vorrichtung, um die Ecke zweier Textilwerkstücke auf eine Nähmaschine zu introduzieren und positionieren Download PDF

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Publication number
EP0267816A1
EP0267816A1 EP87402134A EP87402134A EP0267816A1 EP 0267816 A1 EP0267816 A1 EP 0267816A1 EP 87402134 A EP87402134 A EP 87402134A EP 87402134 A EP87402134 A EP 87402134A EP 0267816 A1 EP0267816 A1 EP 0267816A1
Authority
EP
European Patent Office
Prior art keywords
sliding
stop
line
sewing machine
seam
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.)
Granted
Application number
EP87402134A
Other languages
English (en)
French (fr)
Other versions
EP0267816B1 (de
Inventor
Michel Julien
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.)
Institut Textile de France
Original Assignee
Institut Textile de France
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 Institut Textile de France filed Critical Institut Textile de France
Priority to AT87402134T priority Critical patent/ATE66504T1/de
Publication of EP0267816A1 publication Critical patent/EP0267816A1/de
Application granted granted Critical
Publication of EP0267816B1 publication Critical patent/EP0267816B1/de
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
    • D05B27/00—Work-feeding means
    • D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
    • D05B27/06—Work-feeding means with feed dogs having horizontal and vertical movements arranged above and below the workpieces
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/10—Edge guides
    • 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

  • the present invention relates to the automatic introduction of textile pieces under the presser foot of a sewing machine, and more particularly the introduction of two superimposed pieces after adjustment of the two corresponding angles.
  • the invention relates to the field of making textile articles, but can more generally relate to all fields where it is necessary to superimpose exactly and assemble two flexible pieces.
  • first part (a) is first positioned precisely along the first stop along the side of the angle along which the seam is to be made, then along the reference line along the other side of the angle. The same positioning then occurs for the second part, then the two exactly superimposed parts are moved simultaneously and introduced under the presser foot of the sewing machine.
  • the method of the invention allows partially hidden time work, insofar as the operator prepares and introduces the second part while the positioning of the first part takes place according to steps a and b.
  • straight stop used above should be taken in a broad sense; it is a means along which the part finishes moving. It can actually be a stop in the usual sense of the term, that is to say a material means against which the side of the part will be forced to stop. But it can also be, according to the method of the invention, an intangible means, a reference line along which side of the room will position.
  • the pushing means will have the sole function of pushing the part in the direction of the stop; in the second case, the thrust means will have the additional function of stopping the part along the reference line constituting the stop.
  • the pushing means are pneumatic means which consist of nozzles, supplied with compressed air and inclined in the pushing direction of the part.
  • the device according to the invention comprises a third sliding plate, substantially parallel to the work plane, located above the second sliding plate, and the pushing means consist of orifices made in the first and said third sliding plate
  • the second and the third plate have on the side opposite the stop a slightly curved upward shape to facilitate the introduction of the part in the intervals between, on the one hand the first and second plates (first part) and on the other share the second and third plates (second piece).
  • the edge guide 1 consists of three overlapping plates 2, 3 and 4.
  • the lower plate 2 is placed in front of the needle plate 5 so that the upper faces of these two plates 2 and 5 are coplanar. It has several orifices 6, inclined by relative to the horizontal plane and opening into a housing 7 formed in the plate 2 itself, said housing 7 being closed by a plate 8 through which the compressed air inlet 9 is fixed.
  • the upper plate 4 also includes orifices 10 supplied with compressed air in the same way as the orifices 6. In both cases, these orifices 6 and 10 are oriented substantially in the direction of the arrow D.
  • the plates 2 and 4 are separated from the intermediate plate 3 by means wedges 11 and 12 which constitute the guide bottom stops. The inner parts of shims 11 and 12 forming stops are in the same vertical plane, parallel to the seam line 13 passing through the needle 14.
  • Each plate 2 and 4 is partially hollowed out according to a groove, respectively 15 and 16, in which a claw takes place, respectively 17 and 18.
  • This groove 15 or 16 allows the claw 17 or 18 to move in its horizontal movement in the direction of the seam line 13.
  • Each claw 17 or 18 is connected to a drive device allowing the claw to move vertically and horizontally. This drive device consists of the elements described below.
  • stirrups 22 and 23 are fixed on a plate 19, integral with the frame of the sewing machine 20 by means of a hinge with a vertical axis 21.
  • Each stirrup receives the elements corresponding to the movements of a claw
  • l lower caliper 2 2 receives the elements corresponding to the lower claw 17, the upper caliper 23 those of the upper claw 18.
  • the caliper 22 supports on the one hand the stepping motor 24 and on the other hand the axis of rotation 25.
  • a pulley 26 is fixed on the axis 25 and is connected to the pulley 27 of the motor 24 by means of the toothed belt 28.
  • a support part 29 is articulated around the axis 25; it comprises two guide pin holes 30 and 31 in which the pins 32 and 33 slide fixed on a mechanism 34.
  • This mechanism 34 comprises an arm 35, carrying at its end the support 37 of the claw 18, and a rack 38 which meshes with the pinion 39 locked on the axis 25.
  • the spring 41 and the adjusting screw 40, fixed on the caliper 2 3, allow an adjustable pressure to be applied to the arm 35 via the part 42 which carries the roller 43, this roller 43 being embedded in the slide 36. This arrangement allows the movement of the arm 35 while maintaining the action spring 41.
  • the part lower 44 of the part 42 receives the end of the rod of the jack 45, fixed on the plate 19.
  • the edge guide 1 is fixed to the end of the plate 19. In this way the entire device is retractable by pivoting around the axis 21 to allow access to the organs of the sewing machine. blocking, not shown, allows the entire device to be fixed in position.
  • a photoelectric cell 46 is placed above the edge guide 1 and in front of the presser foot 47 of the sewing machine.
  • the working axis of the cell 46 is vertical and the plates 3 and 4 are drilled to allow the passage of the light flux.
  • the photocell 46 is connected to the stepping motor 24.
  • Two proximity detectors 47 and 48, placed under the mechanism 34, are also connected to the stepping motor 24.
  • the first textile piece 49 is introduced manually by the operator in an approximate position; it is pushed towards the stop line 50 in the direction of arrow D, transverse to the seam line 13 (fig 4a). Once the side 51, along which the sewing is to be carried out, positioned exactly along the stop line 50, the first part 49 is moved in the direction of the arrow D ⁇ (fig 4b) until the other side 52 of the angle has reached the reference line 53 (fig. 4c). During the course of this step, the operator manually introduces the second textile piece 54 in an approximate position.
  • This second part 54 is also pushed in the direction of arrow D (fig 4c) until the side 55 along which the seam is to be made is positioned exactly along the stop line 50, then (fig 4d ) it is moved along D ⁇ until the other side 56 has reached the reference line 53.
  • the two textile pieces 49 and 54 have their two sides (51 and 55), (52 and 56) respectively positioned according to the same lines (50 and 53): these two parts are exactly superimposed.
  • the two parts are then simultaneously and at the same speed moved along D ⁇ and introduced under the presser foot 47 of the sewing machine.
  • the claws 17 and 18 are in the high position, they are outside the grooves 15 and 16 formed in the plates 2 and 4 (fig 5a).
  • the operator manually introduces the first part 49 between the plates 2 and 3, while the compressed air is supplied by the orifices 6 and push the part 49 at the bottom of the guide 1 against the stop 11.
  • the action of the air jets is maintained during all the following operations, including sewing.
  • the part 49 obscures the photoelectric cell 46.
  • the operator presses a control pedal which triggers the retraction of the cylinder 45 ⁇ (from the caliper 22 under the plate 19, corresponding to the cylinder 45 of the caliper 23).
  • the retraction of the cylinder 45 ⁇ applies the claw 17 to the part 49 against the underside of the intermediate plate 3.
  • the part is thus pinched between the claw 17 and the plate 3 (fig 5b).
  • the stepping motor 24 ⁇ starts and drives the claw 17 until the part 49 discovers the cell 46 (fig 5c).
  • the side 52 of the part 49 is then positioned along the reference line 53.
  • the drive of the claw 17 by the rotation of the stepping motor 24 ⁇ is carried out as follows.
  • the pulley 27 ⁇ of the motor 24 ⁇ rotates the axis 25 ⁇ via the toothed belt 28 ⁇ and the pulley 26 ⁇ .
  • the pinion 39 ⁇ , mounted on the axis 25 ⁇ turns on itself and causes the displacement of the rack 38 ⁇ , and consequently of the mechanism 34 ⁇ , of the support 37 ⁇ and therefore of the claw 17.
  • the mechanism 34 ⁇ is kept horizontal, during of its movement, by the guides 32 ⁇ and 33 ⁇ passing through the guide axes 30 ⁇ and 31 ⁇ .
  • the same operations are carried out for the positioning of the second textile piece 54.
  • the operator manually introduces this piece 54 between the two plates 3 and 4 of the edge guide 1.
  • the area jets, leaving the orifices 10, push the part 54 up to the stop 12 at the bottom of the guide.
  • the cell 46 is then again obscured.
  • the operator presses on the control pedal which triggers the retraction of the jack 45 and the descent of the claw 18 against the upper face of the intermediate plate 3 (fig 5d).
  • the claw 18 moves, driving the part 54 until the cell 46 is again discovered (fig 5e).
  • the side 56 of the part 54 is then positioned along the line of reference 53 and the two parts 49 and 54 are exactly superimposed.
  • the two stepping motors 24 and 24 ⁇ rotate at a predetermined number of steps in the opposite direction to the previous direction of rotation, which causes the two claws 17 and 18 to move simultaneously and at the same speed. direction of the presser foot 47.
  • the number of steps is fixed as a function of the distance separating the reference line 53, marked by the cell 46, and the underside of the presser foot 47. In this way the two parts are introduced, exactly superimposed under the presser foot 47 (fig 5f). Then the jacks 45 and 45 ⁇ come out and move the claws 17 and 18 to their initial position (fig 5a), which position is determined by that of the proximity detectors 47 and 48.
  • the air jets coming from the orifices 6 not only push the knitted fabric towards the stop 11 of the bottom of the guide 1 but also unroll the edge before it reaches the bottom of the guide (fig 7).
  • the description which has just been made corresponds to a use of the device according to the invention in assistance to an operator for the automatic adjustment and introduction of two angles of parts under the sewing machine.
  • the device can also be an automation element in a more complex machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP87402134A 1986-10-03 1987-09-24 Verfahren und Vorrichtung, um die Ecke zweier Textilwerkstücke auf eine Nähmaschine zu introduzieren und positionieren Expired - Lifetime EP0267816B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87402134T ATE66504T1 (de) 1986-10-03 1987-09-24 Verfahren und vorrichtung, um die ecke zweier textilwerkstuecke auf eine naehmaschine zu introduzieren und positionieren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8613831A FR2604732B1 (fr) 1986-10-03 1986-10-03 Procede et dispositif d'ajustement et d'introduction automatique de deux angles de pieces textiles sur une machine a coudre
FR8613831 1986-10-03

Publications (2)

Publication Number Publication Date
EP0267816A1 true EP0267816A1 (de) 1988-05-18
EP0267816B1 EP0267816B1 (de) 1991-08-21

Family

ID=9339535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87402134A Expired - Lifetime EP0267816B1 (de) 1986-10-03 1987-09-24 Verfahren und Vorrichtung, um die Ecke zweier Textilwerkstücke auf eine Nähmaschine zu introduzieren und positionieren

Country Status (7)

Country Link
US (1) US4825788A (de)
EP (1) EP0267816B1 (de)
JP (1) JPS63164991A (de)
AT (1) ATE66504T1 (de)
DE (1) DE3772330D1 (de)
ES (1) ES2025682T3 (de)
FR (1) FR2604732B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8911087B2 (en) 2011-05-20 2014-12-16 Eyefluence, Inc. Systems and methods for measuring reactions of head, eyes, eyelids and pupils
US8408150B1 (en) 2011-09-20 2013-04-02 Tenna M. Ragan Sewing aid
CN105133199B (zh) * 2015-09-08 2017-11-28 西安标准工业股份有限公司 一种带有自动送模板机构的缝纫机及其使用方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954071A (en) * 1973-12-10 1976-05-04 Firma Pfaff Industriemaschinen Gmbh Sewing machine having top and bottom feed synchronizing means
FR2324784A1 (fr) * 1975-09-17 1977-04-15 Rockwell Rimoldi Spa Dispositif pour faciliter l'introduction d'un tissu dans le moyen de guidage d'une machine a coudre
DE2608859A1 (de) * 1976-03-04 1977-09-08 Duerkoppwerke Verstelleinrichtung zum beeinflussen des stoffvorschubes bei der ausfuehrung von naeharbeiten auf einer naehmaschine
DE2839399A1 (de) * 1978-09-11 1980-03-20 Union Special Gmbh Kantenfuehrung fuer naehmaschinen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2149069C3 (de) * 1971-10-01 1980-06-04 Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern Nähmaschine mit Einrichtung zum Herstellen von randparallelen Nähten
US3867889A (en) * 1973-08-03 1975-02-25 Stahl Urban Co Apparatus for seaming pieces of textile fabric or the like
IT1049824B (it) * 1974-12-05 1981-02-10 Pfaff Ind Masch Impianto di cucitura atto ad unire mediante cucitura strati di stoffa in modo che risultino uniformati in lunghezza
CA1065196A (en) * 1976-03-16 1979-10-30 Siegfried Wajcmann Sewing apparatus
US4037546A (en) * 1976-07-27 1977-07-26 Union Special G.M.B.H. Sewing machine apparatus for aligning and sewing pieces of textile fabric or the like
DE3441167A1 (de) * 1983-12-21 1985-07-04 Veb Rationalisierung Konfektion, Ddr 1017 Berlin Verfahren und vorrichtung zum leichten manipulierbarmachen und deckungsgleichen zufuehren biegeschlaffer flaechenfoermiger werkstuecke insbesondere textiler zuschnitteile zu naeheinrichtungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954071A (en) * 1973-12-10 1976-05-04 Firma Pfaff Industriemaschinen Gmbh Sewing machine having top and bottom feed synchronizing means
FR2324784A1 (fr) * 1975-09-17 1977-04-15 Rockwell Rimoldi Spa Dispositif pour faciliter l'introduction d'un tissu dans le moyen de guidage d'une machine a coudre
DE2608859A1 (de) * 1976-03-04 1977-09-08 Duerkoppwerke Verstelleinrichtung zum beeinflussen des stoffvorschubes bei der ausfuehrung von naeharbeiten auf einer naehmaschine
DE2839399A1 (de) * 1978-09-11 1980-03-20 Union Special Gmbh Kantenfuehrung fuer naehmaschinen

Also Published As

Publication number Publication date
ATE66504T1 (de) 1991-09-15
FR2604732B1 (fr) 1989-02-03
DE3772330D1 (de) 1991-09-26
FR2604732A1 (fr) 1988-04-08
EP0267816B1 (de) 1991-08-21
ES2025682T3 (es) 1992-04-01
JPS63164991A (ja) 1988-07-08
US4825788A (en) 1989-05-02

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