EP0033039A1 - Procédé et machine pour la fermeture automatique de la pointe des bas tricotés - Google Patents

Procédé et machine pour la fermeture automatique de la pointe des bas tricotés Download PDF

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Publication number
EP0033039A1
EP0033039A1 EP80304777A EP80304777A EP0033039A1 EP 0033039 A1 EP0033039 A1 EP 0033039A1 EP 80304777 A EP80304777 A EP 80304777A EP 80304777 A EP80304777 A EP 80304777A EP 0033039 A1 EP0033039 A1 EP 0033039A1
Authority
EP
European Patent Office
Prior art keywords
hose
carrier
toe end
toe
end portion
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
EP80304777A
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German (de)
English (en)
Other versions
EP0033039B1 (fr
Inventor
Michael John Hodges
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.)
Detexomat Machinery Ltd
Original Assignee
Detexomat Machinery Ltd
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 Detexomat Machinery Ltd filed Critical Detexomat Machinery Ltd
Publication of EP0033039A1 publication Critical patent/EP0033039A1/fr
Application granted granted Critical
Publication of EP0033039B1 publication Critical patent/EP0033039B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B23/00—Sewing apparatus or machines not otherwise provided for
    • D05B23/007—Sewing units for assembling parts of knitted panties or closing the stocking toe part
    • D05B23/009—Toe closers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H1/00—Marking textile materials; Marking in combination with metering or inspecting
    • 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
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2305/00—Operations on the work before or after sewing
    • D05D2305/22—Physico-chemical treatments
    • D05D2305/24—Marking
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2501/00—Wearing apparel
    • D10B2501/04—Outerwear; Protective garments
    • D10B2501/043—Footwear

Definitions

  • the present invention relates to an improved method and apparatus for use in manufacturing hosiery, i.e. socks, stockings, pantihose and boot liners, and more especially for use in manufacturing high quality socks and stockings.
  • hosiery i.e. socks, stockings, pantihose and boot liners
  • Figs. 1A and 1B of the accompanying drawings show a hose 1 from the side and from beneath, respectively, in each case laid out flat.
  • the toe seam 2 has a particular orientation relationship to the heel portion 3, such that when this hose is worn with the wearer's heel embraced by the heel portion 3, the toe seam 2 lies approximately across the ends of the toes.
  • a "fishmouth” seam is used. This is symmetrical about the longitudinal centre line 4 of the hose and so is the heel portion 3.
  • the seam may lie in a plane perpendicular to the plane of Fig. lB, this plane desirably containing the centre line 4.
  • Such seams should therefore be aligned with centre line 4. Irrespective of the seam shape, there should always be a definite, specific relationship between seam and heel portion.
  • hose must always be inserted into a seamer with the heel portion in a predetermined attitude. This could be done manually quite successfully, provided there is time available for the operator to make such adjustments as necessary.
  • the desire for ever higher production rates has led to the development of automatic machinery capable of seaming 420 to 600 dozen pairs of hose per 8 hour shifto Such a machine is the Detexomat "Speedomatic HS". At production speeds of this level there is too little time for an operator to feed the hose to the machine and then to adjust the hose properly. Thus, it is well nigh impossible for anyone to produce toe seamed hose consistently having the desired toe and heel relationship.
  • the present invention aims to remedy the problem of attaining consistently seamed hose of the type described above and provides an automatic method and apparatus wherein the heel is adjusted to a predetermined orientation before seaming is commenced, this orientation being retained until the toe closing operation has commenced.
  • a method of automatically closing the toes of hosiery wherein a tubular hose blank having a shaped and/or reinforced heel is mounted on a carrier, a toe end portion of the blank mounted on the carrier is caused to adopt a laterally spread flat condition and in this condition is moved past a seamer which generates a toe seam of a predetermined outline across the toe end portion, characterised in that a driven member is brought into engagement with the toe end portion after mounting on the carrier and said toe end portion is rotated thereby around the carrier until the said toe end portion and the heel are in a predetermined attitude upon the carrier, the resulting mutual orientation of the toe end portion and heel being preserved in the course of spreading the toe end portion flat and seaming.
  • the invention also provides a machine for automatically closing the toes of hosiery supplied in open-ended tubular form having shaped and/or reinforced heels, the machine being of the type having a seamer, means for moving a flattened hose toe end past the seamer to generate a toe closing seam of predetermined outline therein, and a carrier to support the hose on the machine, the machine being characterised by means movable into and out of engagement with the toe end portion of a hose on the carrier, prior to movement of the toe end past the seamer, and operative to rotate the toe end portion around the carrier and with it the heel, and by control means including a sensor located at a set, datum position with respect to the carrier, the control means being operable to effect a discontinuation of rotation of the toe end portion when the latter has been rotated to bring an identifiable feature therein into alignment with the sensor.
  • a preferred machine has a seamer, movable clamp means for gripping a flattened hose toe end and for moving it past the seamer to generate a toe closing seam therein, a carrier to support the hose on the machine and means operable to advance a toe end portion of the hose from the carrier into the clamp means, the machine further including a rotationally-driven member mounted for movement into and out of engagement with the toe end portion supported on the carrier, prior to advance thereof into the clamp means, for rotating the toe end portion when engaged thereby around the carrier and with it the heel, and rotation control means including a sensor located at a set, datum position with respect to the carrier, the said control means being operable to effect a discontinuation of rotation of the toe end portion when the latter has been rotated to bring an identifiable feature therein into alignment with the sensor.
  • the identifiable feature is provided in the hose, by the hosiery manufacturer, in a predetermined position relative to the heel.
  • the sensor When the sensor responds upon alignment of the said feature therewith, it may produce a signal which, for instance, is responsible for disengaging the rotationally-driven member from the toe end portion so that the latter ceases rotating around the carrier.
  • the signal could be arranged to arrest driving of the rotationally-driven member instead.
  • the heel Owing to the said feature being fixed relative to the heel and the sensor being in a set datum position, the heel will be in a prescribed attitude on the carrier when the rotationally-driven member is either disengaged from the hose toe end portion (as preferred), or its drive is arrested.
  • the said feature can take a variety of forms. For instance, it may be a knitted band contrasting in colour from the remainder of the hose knit, or a band of dropped or transferred stitches.
  • the carrier can be a tubular member useful for everting hose, as is known.
  • the toe-advancing means can be a pair of fingers or blades which advantageously move apart inside the hose toe end portion to spread the latter flat for entry into the clamp means.
  • the fingers are arranged also to execute a movement towards, into and then away from the clamp means for depositing the toe end in the clamp means. Friction between the toe end portion and the fingers preserves the orientation between the toe end portion and the heel set by the rotationally-driven member.
  • the fingers are mounted on the carrier for movement lengthwise thereof during the operation of depositing the toe end in the clamp means.
  • the basic machine to be described for convenience is a development or modification of a known Detexomat toe closer, i.e. the "Speedomatic HS" toe closer.
  • Special equipment (to be described) is fitted to the machine for adjusting hose blanks accurately to attain a predetermined orientation relationship between heel portion and toe seam in the finished hose.
  • the "Speedomatic HS" machine is disclosed in our U.K. Patent Specification No. 1,577,758 to which reference is hereby directed.
  • the machine 5 is fitted with a sewing and trimming machine 6 e.g. a Union Special 39500 machine.
  • a sewing and trimming machine 6 e.g. a Union Special 39500 machine.
  • a seam of the desired shape e.g. a fish mouth
  • Intermittently-operable clamp means 7 serves to grip the toe end to be seamed and then to move it past the needle.
  • Clamp means 7 comprises an endless, intermittently-driven belt 8 and a work table 9 which extends to the sewing machine sewing head.
  • the belt,8 is trained around pulley wheels, not shown, some of which are adjustable to determine the shape of the seam generated.
  • the principle of operation of the clamp means 7 is described in our U.K.
  • Patent 1,501,869 to which reference is directed for details.
  • the clamp opens (to admit hose blanks for seaming and subsequently for releasing the seamed hose) and closes (to clamp toe ends and then move them past the sewing machine) by raising and lowering the belt bodily relative to a stationary work-table.
  • the table instead is lowered and raised to open and close the clamp means 7, the table being pivotally mounted on a pillar 10.
  • the machine 5 is furnished with turret-mounted tubular hose carriers 12 and means for automatically advancing toe ends of hose disposed on the carriers 1 2 into the clamp means 7.
  • Turret 11 is mounted to rotate, or index, stepwise causing each carrier 12 to sweep intermittently around a circular or cylindrical path 14.
  • Drive means for the turret 11 are housed within a cabinet 15.
  • the toe end advancing means comprise reciprocally- movable fingers 16, a pair thereof being mounted on each carrier 12 in this particular machine.
  • the fingers 16 are in the form of flat, spaced-apart blades which may spread apart in the course of transferring hose toe ends into the clamp means 7.
  • the toe ends are presented to the clamp means 7 in a flat condition.
  • each tubular carrier 12 moves intermittently, pausing at each of ten stations I-X.
  • Carrier 12 When a carrier 12 arrives at Station I, the operator loads a hose blank thereon. Carrier 12 is in communication with a source of suction to assist eversion of the blank in known manner. The welt end of the blank is turned back over the carrier 12 and manually drawn along the carrier, this and finger blades 16 being disposed inside the blank. The turret is then indexed to cause each carrier to rotate through 36 0 to the next station.
  • a wind-on mechanism including a rotationally driven roller 20 is actuated to engage the hose blank and draw it fully onto the carrier 12.
  • roller 20 is moved out of contact with the blank.
  • the hose blank toe end portion is positioned longitudinally.
  • the object is to adjust the actual toe end accurately upon the finger blades 16 such that upon transfer to the clamp means 7, it will be fed thereby past the seamer to generate a seam in the requisite location.
  • the positioner 23 is moved into engagement with the hose blank while stationary at station III, and then shifts its toe end portion firstly away from the turret 11 and then back again. In the course of the latter movement, some discernable feature on the toe end portion approaches a photo-sensor 24, the said feature being some predetermined distance from the desired position of the seam to be generated. When the photo-sensor 24 detects .the said feature, it produces a signal for disengaging the positioner 23 from the blank.
  • the said feature can be a control mark, e.g. a coloured thread or a band of dropped stitches, the extreme end of the blank or the boundary between a reinforced toe knit arid the adjacent knit of the blank.
  • the toe end portion is in the correct longitudinal position on the blades 16, when the positioner 23 is disengaged by the sensor signal, to within 3 mm.
  • the hose passes through "spare" stations VII and VIII to station IX.
  • a reverse-driven wind-off roller 27 is engaged with the hose on carrier 12 and suction is applied through the carrier.
  • the hose is drawn toe end first into the carrier 12 by the suction assisted by roller 27, and . is then discharged from the machine. During this sucking-in action, the hose is automatically everted.
  • the unloaded carrier 12' After passing through "spare" station X, the unloaded carrier 12' returns to station I to be loaded with a fresh hose blank by the operator once again.
  • the present machine differs from the Speedomatic HS machine in one important operational respect: it is arranged to position the heel portion automatically such that the requisite, predetermined orientation relationship between heel and toe seam is always attained. Heel positioning takes place at e.g. station IV. Presentation of the toe end to the clamp means 7, and generation of the toe closing seam, are both performed at station V. Otherwise, the operating cycle - see Fig. 4 - is substantially as described above in relation to the Speedomatic HS machine.
  • the heel positioning means 30, is shown in Fig. 5.
  • means 30 comprises a padded resilient roller 31 having its central axis parallel to the length of carrier 12.
  • the roller 31 is journalled on a bracket arm 32 pivoted upon a pillar 33 which, in turn, is fixedly mounted in a manner not shown to machine cabinet 15.
  • a double-acting pneumatic jack 34 is coupled between the arm and a bracket 35 on the pillar 33.
  • the jack 34 is operable to swing the pivoted bracket arm 32 to and fro to engage and disengage the roller 31 with a toe end portion of a hose mounted on carrier 12.
  • the roller is shown in its disengaged position in Fig. 5 and in its engaged position in Figs. 4 and 6.
  • a drive motor is coupled directly or indirectly to roller 31 to rotate the latter at least when engaged with the hose.
  • the roller 31 can be continuously or discontinuously driven.
  • roller 31 causes the latter to slide around the carrier (and the blades), until a signal is produced by a photo-sensor 36.
  • the signal to disengage the roller 31 from the hose toe portion is generated by the sensor 36 when an indicating mark on the hose aligns therewith.
  • the indicating mark can be knitted intc the hose using a contrasting thread. This mark is in a predetermined position with respect to the hose heel portion.
  • the heel positioning means 30 will locate the heel accurately in such an attitude that the ultimately . generated toe seam is in a prescribed orientation relationship with the heel. For example, it may be arranged that the heel is centred on a radial plane extending from the turret turning axis through the central axis of the carrier 12. After positioning, the heel may be centred atop or beneath carrier 12 as viewed in Fig. 6.
  • the blades 16 are always perpendicular to the aforementioned radial plane, this condition being observed at each of the stations I to X. At station IV where the blades 16 transfer the toe end into the clamp means, they lie in horizontal plane to suit the horizontal clamping gap between belt 8 and horizontal work-table 9.
  • each carrier 12 is mounted to rotate against spring bias, not shown, in a boss 40 fast with turret 11.
  • the blades 16 are mounted at their turret ends on a slide 41 and are slidably received in a slit between pairs of wings 42 (one only shown) fast with the carrier 12 adjacent its free end.
  • the slide 41 has two cam followers 43, 44 which run in two tracks 46, 47 of an annular, non-rotatably mounted cam disc 48.
  • Track 46 is formed in the face of cam disc 48 and track 47 in its periphery.
  • the cam disc 48 has a section 50 disposed between stations IV and V which can be moved forwardly out of the plane of the remainder of the cam disc.
  • Cam track 47 is coplanar with the cam disc 48 throughout the circumference of the latter. Thus, cam follower 44 will not be displaced to or fro relative to turret 11 as it runs around track 47, except as will be described hereafter.
  • Cam track 46 is of cardiod form. It is of constant radius except in the section 50 and in the region thereof, where its profile is designed to deflect carrier and blades about the carrier axis.
  • cam follower 43 Except when travelling along track portion 46' in section 50, cam follower 43 remains undeflected: the blades 16 stay perpendicular to the aforementioned radial plane.
  • cam follower 43 rides along track portion 46' and is so deflected that the slide 41 is rotated relative to the carrier axis. Since the blades 16 are fastened to the slide 41 and by wings l 1 2 to the rotatable carrier 12 (journalled in boss 40), the blades 16 and carrier arc rotated in unison about the carrier axis. By the time carrier 12 reaches station V, rotation through 36° will have been achieved and the blades 16 will be in a common horizontal plane.
  • the blades 16 When the carrier has reached station V or shortly before, the blades 16 must commence their to and- fro excursion along the carrier 12 to transfer a hose toe end into the clamp means 7. This excursion is accomplished by shifting cam section 50 forward and back with respect to the remainder of cam disc 48. Movement of the cam section 50 is coupled to the blades 16 by cam track 47, cam follower 44 and slide 41. The blade excusion commences while the blades 16 are nearing the horizontal under control of cam track section 46'.
  • can disc section 50 Forward and reverse movement of can disc section 50 is produced by a push/pull rod 51 and a linkage 52 coupled through a cam follower 53 to a control cam 54.
  • the latter is moved in timed relation with the indexing turret, and may be fast for rotation therewith.
  • Any convenient linkage 52 will suffice, and that shown diagrammatically is merely exemplary.
  • the carrier and blade rotation means could be omitted in a modified design. This would be possible in principle if the operations performed at the various stations were displaced one position anticlockwise, as viewed in Fig. 4. Then, the operator would load at station X. Winding on would take place at station I and longitudinal positioning at station II. Heel positioning would take place at station III and transfer at station IV, scanning likewise being performed at this station if desired. Since station IV is at "top dead centre", the blades will be horizontal and hence will already be in an attitude suiting the clamp means.
  • the heel positioning means can be incorporated in or installed on any automatic toe closer having one or more hose carriers around which the hose can be caused to rotate.
  • an inked datum mark could be applied to the hose.
  • the mark could then be characterised by a dyestuff which contrasts clearly with the surrounding fabric when illuminated by radiation of a particular wavelength, e.g..ultra-violet light, the spectral range of the sensor of course being chosen to suit. Dyestuffs which fluoresce under ultra-violet light may be employed.
  • the mark could be provided by a band of metal threads, the sensor then responding to the difference in reflectance between the said band and the adjacent fabric.
  • a photo sensor could conceivably be replaced by circuitry which detects the completion of an electric circuit between a feeler, the threads and the carrier, the feeler being located at the set datum position.
  • a rotationally-driven wheel or roller is not indispensible for rotating the hose toe end portion around the carrier when heel positioning.
  • an endless driven belt trained around pulleys and mounted for movement into and out of contact with the hose could be substituted.
  • a member such as a bar which, after being engaged with the carrier-mounted hose, is displaced laterally relative to the carrier to cause the desired rotation of the hose.
  • the turret of the machine described above rotates stepwise from station to station.
  • Toe closers are known, however, in which the turret carriers are always in motion.
  • the present invention can be applied to such toe closers by mounting the heel positioning' equipment on a movable support for travel in unison with each of the carriers in turn during the positioning operation.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP80304777A 1980-01-07 1980-12-31 Procédé et machine pour la fermeture automatique de la pointe des bas tricotés Expired EP0033039B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8000402 1980-01-07
GB8000402 1980-01-07
GB8037143 1980-11-19
GB8037143A GB2066862B (en) 1980-01-07 1980-11-19 Method and apparatus for seaming toes in hosiery manufacture

Publications (2)

Publication Number Publication Date
EP0033039A1 true EP0033039A1 (fr) 1981-08-05
EP0033039B1 EP0033039B1 (fr) 1984-11-21

Family

ID=26274041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80304777A Expired EP0033039B1 (fr) 1980-01-07 1980-12-31 Procédé et machine pour la fermeture automatique de la pointe des bas tricotés

Country Status (3)

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EP (1) EP0033039B1 (fr)
DE (1) DE3069686D1 (fr)
GB (1) GB2066862B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116445A2 (fr) * 1983-02-04 1984-08-22 Detexomat Machinery Limited Appareil de transfert de l'ouvrage entre machines à tricoter
EP0648880A1 (fr) * 1993-10-18 1995-04-19 SOLIS S.r.l. Dispositif pour le positionnement de la portion du pied de produits manufacturés tubulaires en tricot
US5826527A (en) * 1996-04-04 1998-10-27 Matec S.R.L. Apparatus for treating knitted tubular articles, especially stockings

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057056B1 (fr) * 1981-01-23 1985-04-10 Detexomat Machinery Limited Dispositif et procédé pour retirer des bas d'appareils de traitement d'articles de bonneterie
DE3263051D1 (en) 1981-01-23 1985-05-23 Detexomat Machinery Ltd Boarding apparatus and method
JPS6112965A (ja) * 1984-06-22 1986-01-21 株式会社　タカトリ機械製作所 足型に插着された靴下つま先部の位置修正装置
US4784070A (en) * 1985-09-10 1988-11-15 Detexomat Machinery Limited Pantihose manufacture
GB9000463D0 (en) * 1990-01-09 1990-03-07 Flude & Hinckley Stocking positioning device
KR100889243B1 (ko) * 2005-12-02 2009-03-17 주식회사 엘지화학 전지 코어 팩의 제조방법
ATE418638T1 (de) * 2006-05-18 2009-01-15 Santoni & C Spa Automatische vorrichtung und methode zum orientieren eines textilartikels auf einem halter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4192242A (en) * 1977-04-02 1980-03-11 Detexomat Machinery Limited Hosiery toe closers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1090252B (it) * 1979-02-07 1985-06-26 Solis Srl Dispositivo per il posizionamento automatico della estremita'da cucire delle calze tubolari con tallone su di un apparato rovesciatore pneumatico specialmente in macchina per la cucitura della punta delle calze tubolari

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4192242A (en) * 1977-04-02 1980-03-11 Detexomat Machinery Limited Hosiery toe closers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116445A2 (fr) * 1983-02-04 1984-08-22 Detexomat Machinery Limited Appareil de transfert de l'ouvrage entre machines à tricoter
EP0116445A3 (en) * 1983-02-04 1984-09-26 Detexomat Machinery Limited Apparatus for transferring hosiery between hosiery manufacturing machines
US4550868A (en) * 1983-02-04 1985-11-05 Detexomat Machinery Ltd. Method and apparatus for transferring hosiery between hosiery manufacturing machines
EP0648880A1 (fr) * 1993-10-18 1995-04-19 SOLIS S.r.l. Dispositif pour le positionnement de la portion du pied de produits manufacturés tubulaires en tricot
US5826527A (en) * 1996-04-04 1998-10-27 Matec S.R.L. Apparatus for treating knitted tubular articles, especially stockings

Also Published As

Publication number Publication date
GB2066862B (en) 1983-10-05
DE3069686D1 (en) 1985-01-03
GB2066862A (en) 1981-07-15
EP0033039B1 (fr) 1984-11-21

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