EP0003492A1 - Verbesserungen an Maschinen die dazu dienen Paspelöffnungen in Stoffstücken oder dergleichen vorzubereiten - Google Patents

Verbesserungen an Maschinen die dazu dienen Paspelöffnungen in Stoffstücken oder dergleichen vorzubereiten Download PDF

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Publication number
EP0003492A1
EP0003492A1 EP78400258A EP78400258A EP0003492A1 EP 0003492 A1 EP0003492 A1 EP 0003492A1 EP 78400258 A EP78400258 A EP 78400258A EP 78400258 A EP78400258 A EP 78400258A EP 0003492 A1 EP0003492 A1 EP 0003492A1
Authority
EP
European Patent Office
Prior art keywords
length
machine according
machine
control means
piped
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.)
Withdrawn
Application number
EP78400258A
Other languages
English (en)
French (fr)
Inventor
Jean-Louis Mainot
Alain Picaud
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.)
REECE MACHINERY CO
REECE MACHINERY Co (FRANCE) SA
Original Assignee
REECE MACHINERY CO
REECE MACHINERY Co (FRANCE) SA
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 REECE MACHINERY CO, REECE MACHINERY Co (FRANCE) SA filed Critical REECE MACHINERY CO
Publication of EP0003492A1 publication Critical patent/EP0003492A1/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B37/00—Devices incorporated in sewing machines for slitting, grooving, or cutting
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Programme-controlled sewing machines
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/10—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for making piped openings

Definitions

  • the present invention relates to improvements in machines for making piped openings, such as pocket openings, in a piece of fabric or the like.
  • the lifting plate supports, on its upper face, the sewing machine itself and, on its lower face facing the inside of the machine, a certain number of control mechanisms of the sewing machine, mechanisms for advancing the piece of fabric and mechanisms for cutting and notching the openings made in the piece of fabric. It follows that the weight of cj3 plateau is quite high.
  • the lifting of the platform requires a physical effort all the more important as the personnel assigned to driving this kind of machine is, most of the time, a female staff.
  • the object of the invention is essentially to remedy the drawbacks of existing machines and to ensure that they meet the various requirements of the practice better than in the past.
  • the machine of the invention is characterized in that it comprises control means arranged so as to make it manufacture, according to a predetermined sequence and cyclically, a succession of piped openings having different lengths for respectively a succession of unique and identical manual start-up operations.
  • the input means in the form of a keyboard with keys and, to control the sequential and cyclic operation of the machine, to provide display means for displaying the length of the opening selected by the means selection and / or serial number, in the sequence performed, of the opening corresponding to the determined length.
  • the key keyboard and the display means are preferably grouped in a common box, accessible from outside the machine.
  • the operator is thus able to adjust the machine and monitor its operation without having to lift the platform.
  • the first and second control means each comprise detector means for detecting the instantaneous position of a mobile element undergoing the movement to be controlled, comparator means for comparing said instantaneous position with the predetermined length selected by the selection means , and stop control means for stopping the movement in progress when the length traveled by the movable element is equal to the above selected length.
  • the detector means comprise a movable transparent rule provided with opaque graduations and a transmitter and a radiation receiver fixedly arranged on either side of the graduated ruler.
  • the transparent rule of the detector means understood by the first control means is secured to a movable table for driving the piece of fabric and that the transparent rule of the detector means understood by the second control means is integral with a drive cylinder for the support of the movable notching finger.
  • counting means are provided for counting the pulses delivered by the radiation receiver when the graduations of the rule intercept the radiation
  • the radiation R nt used is preferably infrared radiation to make the control means insensitive to the ambient lighting.
  • the machine comprises a plate 1, which can be raised by rotation around a joint (not visible in the figure) situated along its rear side, on which a sewing machine 2 rests.
  • a sewing machine 2 rests.
  • the machine is equipped with two needles 3, transversely spaced from one another, intended to prick the edges of the piped opening (for example a garment pocket opening) and a cutting blade 4, disposed between the two needles and substantially at an equal distance from the latter, for cutting the pocket opening in the fabric.
  • a mobile clamping frame 5 keeps the piece of fabric 6 firmly applied and stretched on a mobile table 7 movable longitudinally relative to the plate 1, as indicated by the double arrow 8.
  • the machine also comprises, under the plate 1, a notching mechanism 9 intended to split the two ends of the pocket opening in a V shape, after cutting and sewing thereof, and to turn the fabric over.
  • This mechanism 9 essentially comprises a fixed support 10 carrying, at that of its ends closest to the front of the machine, a first notching finger 11 movable vertically as indicated by the double arrow 12.
  • the support 10 comprises a part 10a , elongated substantially parallel to the plate 1, hollowed out longitudinally to constitute a guide slide 13 for a mobile carriage 14 supporting a second locking finger 15, vertically movable as indicated by the double arrow in the same manner as finger 11 and simultaneously with this one.
  • the movement of the carriage 14 along the part 10a of the support 10, as indicated by the double arrow 16, is controlled by a double-acting cylinder 17 fixed to the support 10.
  • the rod 18 of the cylinder 17 - which is arranged parallel to the elongated part 10a to reduce the size of the mechanism - is connected to a rod 19, which is parallel to it and which is secured to the carriage 14, by means of two bracing pieces 20, 21.
  • the machine is equipped with control means arranged so as to make it manufacture, according to a predetermined and cyclical sequence, a succession of piped openings having different lengths respectively by means of a succession of unique and identical manual interventions of start up.
  • control means arranged so as to make it manufacture, according to a predetermined and cyclical sequence, a succession of piped openings having different lengths respectively by means of a succession of unique and identical manual interventions of start up.
  • the above-mentioned control means have been designated by the brace I and the operations carried out by the machine by the brace II.
  • the reference 30 designates input means used to introduce initially, and according to the pre-established sequence of manufacture of the piped openings, information concerning the lengths of the different openings to be manufactured.
  • a first output of the input means 30 is connected to the input of storage means 31 storing in memory, in the order of the pre-established sequence, all of the length information.
  • the storage means 31 comprise a plurality of outputs, at the rate of an output by length information, connected to corresponding inputs of a selection device 32 arranged to select, and deliver on its main output 33, successively according to the sequence preset the lengths of the piped openings to be manufactured.
  • the selection device 32 also has an auxiliary control input 34 connected to the output of a control circuit 35 controlling the passage to the next length when the machine reaches the end of the manufacturing cycle of an opening.
  • the selection device 32 is arranged to select, under the control of the circuit 35, the first length introduced into the storage means 31 once the fabrication of the piped opening having the last length introduced into the storage means is completed. .
  • the selection device 32 has an auxiliary output 36 on which appears information representative of the serial number, in the preset sequence, of the length selected by the selection device.
  • This output 36 is connected to the input of an auxiliary display device 37 intended to display the above information and to allow the operator to monitor the correct progress of the pre-established sequence.
  • the length information is clearly visible, that is to say initially when it is introduced into the storage means using the input means 30 , either during operation of the machine to indicate the length selected by the selection means 32.
  • a main display device 38 is provided, provided with a digital display, having two inputs, one of which 39 is connected to an auxiliary output of the input means 30 and the other of which 40 is connected at the main output 33 of the selection means 32.
  • the input means 30, the main display device 38 and the auxiliary display device 37 are grouped in a common box 41, placed on the machine (for example on the sewing machine 2 or on the plate 1) of so that the operator always has it at hand and under the eyes.
  • the input means 30 comprise a keyboard with keys 42 of the kind of that equipping pocket calculators;
  • the main display device comprises a digital display 43 of the type with bar or liquid crystal light-emitting diodes, this display being able for example to display with three figures (units, tens, hundreds) the actual value of the length expressed in metric units, or in all units as will be explained below;
  • the auxiliary display device 37 can comprise, in a simple manner, as many indicator lights 44 (preferably constituted by light-emitting diodes) as there are storage positions, and therefore of different lengths of openings achievable by the machine; by way of example, FIG. 1 shows four indicator lights corresponding to four types of openings.
  • the selection device 32 and the auxiliary display device are arranged in such a way that the indicator lights 44 light up successively one after the other, for example from top to bottom in FIG. 1, when the machine successively produces the piped openings according to the predetermined sequence, the length of the corresponding opening being readable on the display 43.
  • the display 43 and the indicator light 44 which is on give the indication of the piped opening during manufacture, when the machine is in operation, or of the opening which will be manufactured when the machine is stopped, as will be explained later.
  • control circuit 35 and the selection device 32 are arranged in such a way that, when length information has just been introduced into the storage means 31, the selection device 32 necessarily selects the first information stored when the machine is started by manufacturing the first opening to be made.
  • the main output 33 of the selection device 32 is connected to a first input 45 of a first comparator element whose second input 47 is connected to the output of a device 48 for measuring the instantaneous position of the table 7 (see Figure 1) supporting the fabric (an embodiment of the measuring device 48 will be given below).
  • the output of the comparator element 46 is connected to the input of a device 49 for controlling the puncture stopping and cutting of the opening and stopping the advancement of the table 7.
  • the output 33 of the selection device 32 is also connected to a first input 50 of a second comparator element 51, the other input 52 of which is connected to the output of a device 53 for measuring the instantaneous position of the second finger of notching 15 ( Figure 1).
  • a device 53 for measuring the instantaneous position of the second finger of notching 15 Figure 1).
  • An exemplary embodiment of the measuring device 53 will be given later.
  • the output of the comparator element 51 is connected to the input of a circuit 54 for controlling the vertical movement of the locking fingers 11 and 15 according to arrow 12 (see FIG. 1).
  • the device 48 for measuring the instantaneous position of the table 8 comprises a transparent or translucent rule 55, arranged parallel to the direction of movement, represented by the double arrow 8, of the table 7.
  • Rule 55 is rigidly linked to table 7, to which it is fixed in any suitable manner; for example it is screwed onto supports 56 which are themselves screwed to the table 7. Furthermore, the rule 55 carries opaque indexes 57. Preferably, these indexes are regularly spaced from each other and can advantageously constitute a millimeter graduation.
  • a transmitter 58 and a receiver 59 of radiation are disposed on either side of the rule 55 so that the radiation emitted by the transmitter 58 reaches the receiver 59 after having crossed the rule 55 ( or be intercepted by an index 57 of the graduation).
  • opto-electronic semiconductor devices can advantageously be used to constitute the transmitter 58 and the receiver 59. To avoid disturbing action ambient lighting, it is preferable that these devices operate in the infrared.
  • the receiver 59 is an integral part of - or is connected by a wire 60 to a - counting circuit (not shown) intended to count the electrical pulses transmitted by the receiver 59 when the infrared beam emitted by the transmitter 58 is intercepted by an index 57 of the graduation carried by rule 55.
  • the device 53 for measuring the instantaneous position of the second locking finger 15 is constituted in substantially the same way as the device 48 which has just been described.
  • rule 61 is provided with opaque indexes 62 constituting a millimeter graduation.
  • a transmitter 63 and a receiver 64, fixed for example to the cylinder 17, are arranged on either side of the rule 61 and the output of the receiver 64 is connected (by a wire 65) to a pulse counting circuit (not shown).
  • the operator begins by memory, the keys 42 of the housing 41, the dif- fe ren t es lengths some openings passpoilées to manufacture each piece of fabric.
  • each length typed on the keyboard in the chosen unit system (for example in millimeters in the case considered) is displayed by the display 43.
  • the machine is ready to carry out the manufacture, according to the pre-established and cyclical sequence, of the envisaged succession of piped openings having respectively the different lengths entered in memory.
  • phase A in Figure 2 The operator then starts the machine (phase A in Figure 2) by pressing for example an ON button (not shown in Figure 1), the only manual intervention he will have to perform during the manufacture of the opening considered.
  • the selection device 32 selects the first length information present in the storage means 31, information which is therefore applied to the input 45 of the comparator element 46 and to the input 50 of the comparator element 51, and displayed on the display 43 at the same time as the first indicator light 44 lights up, which thus indicates that it is the first piped opening of the sequence which will be manufactured.
  • the table 7 moves back, as indicated by the arrow Ba, to bring the above-mentioned point K under the cutting blade 4; then the table moves in the opposite direction (arrow 8b) while the cutting and sewing operation of the opening begins (phase B in FIG. 2).
  • the graduated rule 55 which is integral with it scrolls past the optoelectronic detector 58, 59, which delivers a pulse each time an index 57 intercepts the infrared ray.
  • the information constituted by these pulses is constantly compared by the comparator element 46 with the information provided by the selection device 32, and, when the movement made by the table 7 reaches the desired value, the element comparator 46 delivers an output signal actuating the device 49 controlling the stopping of the table 7.
  • the carriage 14 of the notching mechanism is moved by the cylinder 17 so that the movable finger 15 is spaced from the finger 11 by a distance corresponding to the length of the opening made in the fabric.
  • the graduated rule 61 which is integral with it scrolls past the optoelectronic detector 63, 64 which delivers a pulse each time an index 62 intercepts infrared radiation.
  • the information constituted by these pulses is constantly compared, by the comparator element 51, with the information present on the input 52 of this and supplied by the selection device 32.
  • the comparator element 51 delivers an output signal actuating the device 54 controlling the actuation of the catch mechanism;
  • phase E on the Figure 2 the finger 15 is returned to its initial position, the clamping frame 5 of the fabric on the table 7 is raised, and the circuit 35 controls the selection device 32 so that it selects the following stored length corresponding to the next opening to be made. Following which the machine stops (phase F in Figure 2).
  • the operator then moves the piece of fabric, already provided with the first piped opening which has just been manufactured, to position it on the table 7 for the production of the second programmed opening, then he starts the machine again. pressing the START button, which causes the renewal of the operating process which has just been described.
  • the selection device 32 again selects, as indicated previously, the first stored length information, and the manufacturing cycle is repeated for a new piece of fabric, and this, regardless of the number of pieces of fabric to be treated and the number of piped openings to be made in each of them.
  • the machine is only designed to make piped openings the length of which is between a minimum length and a maximum length, it is possible to provide a safety system that does not allow the machine to be started if the length information entered into the storage means 31 and selected by the selection device 32 is greater than the above maximum length or less than the above minimum length.
  • control means to check the correct progress, and in order, of the different operating phases, these control means being arranged to stop the machine in the event of an error, for example when the fingers notches 11, 15 are not mounted to cut the ends of the opening or when these fingers are mounted, but have not come down.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP78400258A 1977-12-21 1978-12-21 Verbesserungen an Maschinen die dazu dienen Paspelöffnungen in Stoffstücken oder dergleichen vorzubereiten Withdrawn EP0003492A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7738702A FR2412635A1 (fr) 1977-12-21 1977-12-21 Perfectionnements aux machines servant a fabriquer des ouvertures passepoilees dans une piece de tissu ou analogue
FR7738702 1977-12-21

Publications (1)

Publication Number Publication Date
EP0003492A1 true EP0003492A1 (de) 1979-08-22

Family

ID=9199163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78400258A Withdrawn EP0003492A1 (de) 1977-12-21 1978-12-21 Verbesserungen an Maschinen die dazu dienen Paspelöffnungen in Stoffstücken oder dergleichen vorzubereiten

Country Status (6)

Country Link
US (1) US4341169A (de)
EP (1) EP0003492A1 (de)
JP (1) JPS54120061A (de)
CA (1) CA1135818A (de)
FR (1) FR2412635A1 (de)
IT (1) IT1101188B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3217202A1 (de) * 1981-05-09 1982-11-25 Tokyo Juki Industrial Co., Ltd., Tokyo Naehvorrichtung
US4589358A (en) * 1984-02-10 1986-05-20 Durkoppwerke Gmbh Automatic pocket opening sewing machine having a cutting device for producing notching cuts
DE3512772A1 (de) * 1985-04-10 1986-10-16 Dürkoppwerke GmbH, 4800 Bielefeld Naehvorrichtung zum herstellen von paspelierten oeffnungen in naehteilen
CZ297592B6 (cs) * 1998-10-05 2007-02-07 Dürkopp Adler Aktiengesellschaft Sicí stroj pro výrobu paspulovaného otvoru kapsy
KR101236065B1 (ko) * 2011-04-27 2013-02-22 현대제철 주식회사 하이드로 포밍된 성형품 고정용 지그 및 이를 갖는 하이드로 포밍된 성형품 변형률 분석용 정보 취득 장치

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069080B1 (de) * 1981-06-30 1985-09-11 SOLIS S.r.l. Kontrollvorrichtung für Nähmaschinen zum Einnähen eines Zwickels in ein Kleidungstück
US4512271A (en) * 1982-10-20 1985-04-23 Usm Corporation Pattern selection system
JPS6055990A (ja) * 1983-09-07 1985-04-01 ブラザー工業株式会社 多模様縫いミシン
IT1191698B (it) * 1985-04-10 1988-03-23 Duerkoppwerke Dispositivo di cucitura per produrre aperture orlate in capi da cucire
US4742790A (en) * 1987-09-25 1988-05-10 The Reece Corporation Dart stretcher for pocket welting machine
DE4118135C1 (de) * 1991-06-03 1992-08-13 Duerkopp Adler Ag, 4800 Bielefeld, De
DE4224034C2 (de) * 1991-07-25 2001-10-04 Brother Ind Ltd Nähmaschine
JP2871208B2 (ja) * 1991-07-25 1999-03-17 ブラザー工業株式会社 玉縁縫いミシン
US5361713A (en) * 1992-02-05 1994-11-08 Brother Kogyo Kabushiki Kaisha Work sheet cutting blade with continuous blade displacement detection
GB9210521D0 (en) * 1992-05-16 1992-07-01 Cadcam Punch Ltd Cutting and embroidery process
IL123205A0 (en) * 1998-02-06 1998-09-24 Createch Creative Technologies Apparatus for altering length of trousers
DE10102406B4 (de) * 2000-01-14 2006-05-24 Juki Corp., Chofu Vorrichtung zum Einschneiden eines Paspelstreifens und zum Übertragen des Paspelstreifens auf ein Hauptnähgut
US7174840B2 (en) * 2004-04-08 2007-02-13 Beniamino Scanzani Manipulator used to reverse the edges of slash pockets

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971483A (en) * 1957-01-08 1961-02-14 Cordier Andre Work feed control for sewing and the like machines
US3178000A (en) * 1962-08-14 1965-04-13 Duerkoppwerke Clutch control system for automatic machines and the like
DE1934900A1 (de) * 1969-07-10 1971-01-14 Alfons Beisler Zusatzvorrichtung fuer Naehmaschinen zum Bilden der an den Stofftrennschnitt anschliessenden Einzwickschnitte an Taschen
DE2121277A1 (de) * 1970-05-04 1971-11-18 Cutters Machine Co., Inc., Nashville, Tenn. (V.StA.) Vorrichtung zum Auslegen einer einen Längsstreifen aufweisenden Stoffbahn
DE2037736A1 (en) * 1970-07-30 1972-02-03 Burghardt, Kurt, 875 1 Großwallstadt Automatic sewing unit - for two-needle sewing machines, for the sewing-on of pocket pipings
US3808995A (en) * 1971-12-10 1974-05-07 Pfaff Ind Masch Sewing machine with differential feed

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074632A (en) * 1958-09-12 1963-01-22 Pfaff Ag G M Electronic control system for sewing machines and the like
CH514715A (it) * 1969-07-30 1971-10-31 Necchi Spa Macchina per cucire predisposta per l'esecuzione di tasche a filetto risvoltate
US3763802A (en) * 1971-12-17 1973-10-09 Farah Mfg Co Inc Pocket welting machine
DE2240617A1 (de) * 1972-08-18 1974-02-28 Duerkoppwerke Naeheinrichtung zur herstellung paspelierter oeffnungen
US4100865A (en) * 1977-03-21 1978-07-18 The Singer Company Programmable sewing machine operable in a plurality of modes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971483A (en) * 1957-01-08 1961-02-14 Cordier Andre Work feed control for sewing and the like machines
US3178000A (en) * 1962-08-14 1965-04-13 Duerkoppwerke Clutch control system for automatic machines and the like
DE1934900A1 (de) * 1969-07-10 1971-01-14 Alfons Beisler Zusatzvorrichtung fuer Naehmaschinen zum Bilden der an den Stofftrennschnitt anschliessenden Einzwickschnitte an Taschen
DE2121277A1 (de) * 1970-05-04 1971-11-18 Cutters Machine Co., Inc., Nashville, Tenn. (V.StA.) Vorrichtung zum Auslegen einer einen Längsstreifen aufweisenden Stoffbahn
DE2037736A1 (en) * 1970-07-30 1972-02-03 Burghardt, Kurt, 875 1 Großwallstadt Automatic sewing unit - for two-needle sewing machines, for the sewing-on of pocket pipings
US3808995A (en) * 1971-12-10 1974-05-07 Pfaff Ind Masch Sewing machine with differential feed

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3217202A1 (de) * 1981-05-09 1982-11-25 Tokyo Juki Industrial Co., Ltd., Tokyo Naehvorrichtung
US4589358A (en) * 1984-02-10 1986-05-20 Durkoppwerke Gmbh Automatic pocket opening sewing machine having a cutting device for producing notching cuts
DE3512772A1 (de) * 1985-04-10 1986-10-16 Dürkoppwerke GmbH, 4800 Bielefeld Naehvorrichtung zum herstellen von paspelierten oeffnungen in naehteilen
CZ297592B6 (cs) * 1998-10-05 2007-02-07 Dürkopp Adler Aktiengesellschaft Sicí stroj pro výrobu paspulovaného otvoru kapsy
KR101236065B1 (ko) * 2011-04-27 2013-02-22 현대제철 주식회사 하이드로 포밍된 성형품 고정용 지그 및 이를 갖는 하이드로 포밍된 성형품 변형률 분석용 정보 취득 장치

Also Published As

Publication number Publication date
IT7831055A0 (it) 1978-12-20
IT1101188B (it) 1985-09-28
JPS54120061A (en) 1979-09-18
FR2412635B1 (de) 1981-12-11
US4341169A (en) 1982-07-27
FR2412635A1 (fr) 1979-07-20
CA1135818A (en) 1982-11-16

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