EP0247978B1 - Pneumatische Vorrichtung zum automatischen Wenden von Strickwaren an Strumpfrundstrickmaschinen - Google Patents

Pneumatische Vorrichtung zum automatischen Wenden von Strickwaren an Strumpfrundstrickmaschinen Download PDF

Info

Publication number
EP0247978B1
EP0247978B1 EP87830185A EP87830185A EP0247978B1 EP 0247978 B1 EP0247978 B1 EP 0247978B1 EP 87830185 A EP87830185 A EP 87830185A EP 87830185 A EP87830185 A EP 87830185A EP 0247978 B1 EP0247978 B1 EP 0247978B1
Authority
EP
European Patent Office
Prior art keywords
conduit
fan
intake
suction
outer conduit
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
EP87830185A
Other languages
English (en)
French (fr)
Other versions
EP0247978A2 (de
EP0247978A3 (en
Inventor
Lanfranco Sisti
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.)
Calzificio Sisti & C SNC
Original Assignee
Calzificio Sisti & C SNC
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 Calzificio Sisti & C SNC filed Critical Calzificio Sisti & C SNC
Publication of EP0247978A2 publication Critical patent/EP0247978A2/de
Publication of EP0247978A3 publication Critical patent/EP0247978A3/fr
Application granted granted Critical
Publication of EP0247978B1 publication Critical patent/EP0247978B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/88—Take-up or draw-off devices for knitting products
    • D04B15/92—Take-up or draw-off devices for knitting products pneumatic

Definitions

  • the present invention relates to pneumatic devices for the automatic turning of knitted stockings on circular stocking machines and more particularly to an improvement to a pneumatic turning device according to the preamble of claim 1 and known further to document GB-A-2 124 260.
  • the descent of the knitted fabric or stocking under construction in the external duct is obtained by a downward suction created in the duct itself, since it is connected, by means of a hose and a valve, to a depressor centralized.
  • the knitted fabric or stocking when it is finished, is sucked up, turned over and moved away through the interior duct using a suction produced by a fan and with the assistance of the air current which, coming from the external conduit, passes through a mouth of the aforementioned valve connected to the atmosphere.
  • a suction system for turning over is not sufficient, either in practice or as it is also provided for in the abovementioned document, the operation must be assisted by means of a current. concomitant pressure air delivered by a compressor connected to the device through at least one nozzle.
  • the inlet of the return fan is connected to the interior duct, while its outlet is open to the atmosphere.
  • such a device includes availability and use, in addition to a centralized depressor, also of a pneumatic compressor with the operating costs which it includes.
  • the concomitant action of the fan and the compressor presser is not always effective and sufficient to ensure the reversal and the distancing of the knits, especially if they are long and heavy.
  • the suction fan for the knitting or knitting phase discharges the air into the atmosphere without using it.
  • the invention relates to a pneumatic device for the reversal of knitted or knitted stockings on circular knitting machines, which is safer, more efficient and more functional and which consents to obviate the aforementioned drawbacks and disadvantages .
  • the device allows the elimination of the availability and the use of a compressor by using the current of compressed air at the outlet of the fan to create a bottom-up push on the product in the inversion phase. , concomitantly with the suction action of the fan itself in the internal suction and return duct.
  • the invention relates to a device reversal tire associated with a circular knitting machine according to the characterizing part of claim 1).
  • the latter delimits, with the inner tube 4), an outer annular duct A intended to receive the product 2) during the manufacturing phase, while the inner tube 4) itself delimits an inner duct B for suction and return of the product 2) when it is finished.
  • the outer conduit A is closed at the bottom and it is connected radially, through the holes 3 ⁇ ) provided in the outer tube 3), with an outer pipe 13a) fixed in the protective element 5).
  • the inner tube B is open either at the top or at the bottom, where it is in axial communication with a pipe 14b) for the removal of knitted products and ending in a so-called regulator 6) provided with a flap 6 ⁇ ) for the product release.
  • the pipes 13a) and 14b) are part of a pneumatic circuit which comprises a general suction duct 7) connected to a centralized depressor - not shown - a fan 8) and a valve assembly 9).
  • valve assembly 9) has a valve body 10) having: a first connection 17) connected, by means of a hose 27), to the centralized suction duct 7) and, by means of a hose 28), at fan E input 8); a second connection 13) is connected to conduit A by means of a pipe 38) at the outlet U of the fan 8).
  • the pipe 28) which connects the valve assembly to the inlet E of the fan 8) detaches and connects, by means of a pipe 48), to the regulator 6) as shown in FIG. 1 of the drawing.
  • a valve for example a butterfly 11) - c. Fig. 2 - movable from a position where it connects the first connection 17) to the second connection 13), excluding the third connection 18), to a position where it excludes the first connection 17) and puts the third connection into communication 18) with the second 13).
  • a valve for example a butterfly valve 12) controlled to close the pipe itself when the butterfly valve 11) of the assembly 9 ) excludes the third connection 18) to open the pipe 28) when the throttle valve 11) excludes the first connection 17) and puts the third connection into communication with the second connection to use the compressed air coming out of the fan 8).
  • the fan 8) is stopped, the butterfly 11) is in the position of which in FIG. 2 to port the central vacuum 7) with the pipe 13a) and therefore with the external duct A , and the butterfly 12) is in the closed position of the pipe 28). Leaving the product 2) is gradually sucked down into the external duct A thanks to the centralized suction 7).
  • the stream of compressed air created by the fan can be used to control a pneumatic actuator for opening the flap 6 ⁇ ) of the regulator 6) at the time of discharge outside the product.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Claims (2)

  1. Pneumatische Vorrichtung zum automatischen Wenden von auf Rundstrickmaschinen hergestellter Ware mit zwei im Nadelzylinder (1) eingebauten und sich mit ihm drehenden, konzentrischen Rohren (3,4), die einen Außenkanal (A) zur Aufnahme der Ware während ihrer Erzeugung und einen Innenkanal (B) zum Einsaugen und Wenden der Fertigware und ihrer Beförderung in einen Entspanner (6) abgrenzen und mit einem durch Drosselventile (9,12) geregelten Druckluftkreislauf um anfangs eine Saugwirkung im Außenkanal (A) zur Abwärtsbewegung der Ware während ihrer Erzeugung und dann eine mit einem Druckluftstrom im Außenkanal (A) zusammenwirkende Saugwirkung im Innenkanal (B) zum Ansaugen, Wenden und Auswerfen der Fertigware zu schaffen, wobei die Saugwirkung im Außenkanal (A) durch eine zentrale Unterdruckpume erzielt wird, während die Saugwirkung im Innenkanal (B) in Abständen von einem Gebläse (8) erzeugt wird, dessen Einlaß (E) über den Entspanner (48,6,14b) mit dem Innenkanal (B) verbunden ist, dadurch gekennzeichnet, daß die Austrittsöffnung (U) für die vom Gebläse erzeugte Druckluft über Ventile (38,9,13b) mit dem Außenkanal (A) verbunden ist, wobei das Gebläse (8) während der durch die von der zentralen Unterdruckpumpe (7) im Außenkanal (A) tätigen Saugwirkung stillsteht, und daß die Ventile (9,12) sich derart einstellen, daß sie den Einlaß des Gebläses (8) mit dem Außenkanal (A) nur beim Einsaugen und Wenden der Ware in Verbindung setzen.
  2. Vorrichtung gemäß Anspruch 1), dadurch gekennzeichnet, daß sowohl die Saugwirkung im Innenkanal (B) als auch der gleichzeitige Druckluftstrom im Außenkanal (A) während des Einsaugens und Wendens der Fertigware vom Gebläse (8) erzeugt werden, dessen Einlaß und Auslaß über den Entspanner (6) und das Ventil (9) mit den Innen- und mit dem Außenkanal (B bzw. A) verbunden sind.
EP87830185A 1986-05-26 1987-05-14 Pneumatische Vorrichtung zum automatischen Wenden von Strickwaren an Strumpfrundstrickmaschinen Expired - Lifetime EP0247978B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT05174/86A IT1204138B (it) 1986-05-26 1986-05-26 Dispositivo pneumatico per il rovesciamento automatico dei manufatti costruiti sulle macchine circolari per calzetteria
IT517486 1986-05-26

Publications (3)

Publication Number Publication Date
EP0247978A2 EP0247978A2 (de) 1987-12-02
EP0247978A3 EP0247978A3 (en) 1988-09-28
EP0247978B1 true EP0247978B1 (de) 1992-02-05

Family

ID=11118851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87830185A Expired - Lifetime EP0247978B1 (de) 1986-05-26 1987-05-14 Pneumatische Vorrichtung zum automatischen Wenden von Strickwaren an Strumpfrundstrickmaschinen

Country Status (3)

Country Link
EP (1) EP0247978B1 (de)
DE (1) DE3776591D1 (de)
IT (1) IT1204138B (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228747B (de) * 1957-10-30 1966-11-17 Carl Merz K G Maschf Pneumatische Abzugsvorrichtung fuer Rundstrickmaschinen, insbesondere Strumpfrundstrickmaschinen
US3063275A (en) * 1959-02-10 1962-11-13 Luchi Vinicio Device for everting tubular fabric
IL35210A (en) * 1969-09-08 1973-07-30 Bentley Eng Co Ltd Circular knitting machines
IT1192485B (it) * 1982-07-27 1988-04-13 Solis Srl Congegno pneumatico di tensionamento e di rovesciamento per calzini e manufatti simili sulle macchine circolari da maglieria che li producono

Also Published As

Publication number Publication date
EP0247978A2 (de) 1987-12-02
IT1204138B (it) 1989-03-01
EP0247978A3 (en) 1988-09-28
IT8605174A0 (it) 1986-05-26
DE3776591D1 (de) 1992-03-19

Similar Documents

Publication Publication Date Title
FR2597014A1 (fr) Appareil pour la mise en place d'organes de fixation
EP2924159A1 (de) Vorrichtung und verfahren zum drehen einer socke
KR970070695A (ko) 플라스틱 파이프용 접속구
EP0163558B1 (de) Vorrichtung zum Montieren von Ventilen in Verbrennungskraftmaschinen
EP0430900A2 (de) Verfahren und Vorrichtung zum Umwenden von Socken ausserhalb der dazugehörigen Behandlungsmaschine
US3473312A (en) Fruit picker
EP0247978A2 (de) Pneumatische Vorrichtung zum automatischen Wenden von Strickwaren an Strumpfrundstrickmaschinen
US3756659A (en) Suction dredging installation
JPH06108348A (ja) ねじれ防止装置を備えた単一シリンダ型円形編機
JP2005501187A (ja) 管状編成物品または類似の物品の縁部を開く方法及び装置
JPH05186943A (ja) 編物引っぱり装置を備えたソックス及びストッキング製造用ツインシリンダー型円形編機
SE519073C2 (sv) Rörskaft för en dammsugare
FR2668505A1 (fr) Dispositif pour transferer un tricot a partir d'un metier a tricoter circulaire.
EP1201981A1 (de) Auslassschlauch für elektrische Haushaltsgeräte wie Waschmaschinen, Geschirrspülmaschinen oder dgl
US2690598A (en) Tampon and tampon applicator assembling method
FR2724644A1 (fr) Ventouses de prehension et dispositif de prehension les comportant
JP4055791B2 (ja) 土砂吸引装置
EP0136390B1 (de) Vorrichtung, um die Zwickelöffnung einer Strumpfhose knifflos an einer Nähmaschine darzubieten
KR20040110750A (ko) 다단식 지팡이의 로킹장치
ITTO920800A1 (it) Dispositivo abbinabile ad una rovesciacalze automatica, atto a separare senza interventi manuali calze completamente rovesciate da quelle solo parzialmente rovesciate.
EP1160459A3 (de) Vakuumpumpe
CN219930546U (zh) 一种翻袜装置
US2720277A (en) Filter structures for vacuum cleaners
CN221908815U (zh) 一种吸尘装置
FR2588021A1 (fr) Procede et dispositif de coupe de chainette pour machines a coudre

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19881219

17Q First examination report despatched

Effective date: 19900620

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3776591

Country of ref document: DE

Date of ref document: 19920319

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000426

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000530

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20000531

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010514

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010514

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020301