EP0874075A1 - Dispositif de contrÔle pour objets en mouvement et métier à tisser pourvu d'un tel dispositif - Google Patents

Dispositif de contrÔle pour objets en mouvement et métier à tisser pourvu d'un tel dispositif Download PDF

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Publication number
EP0874075A1
EP0874075A1 EP97810253A EP97810253A EP0874075A1 EP 0874075 A1 EP0874075 A1 EP 0874075A1 EP 97810253 A EP97810253 A EP 97810253A EP 97810253 A EP97810253 A EP 97810253A EP 0874075 A1 EP0874075 A1 EP 0874075A1
Authority
EP
European Patent Office
Prior art keywords
light
flow
loom
line system
light guide
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Withdrawn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
EP97810253A
Other languages
German (de)
English (en)
Inventor
Josef Kaufmann
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.)
Itema Switzerland Ltd
Maschinenfabrik Rueti AG
Original Assignee
Sultex AG
Maschinenfabrik Rueti 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
Application filed by Sultex AG, Maschinenfabrik Rueti AG filed Critical Sultex AG
Priority to EP97810253A priority Critical patent/EP0874075A1/fr
Publication of EP0874075A1 publication Critical patent/EP0874075A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/34—Weft stop motions

Definitions

  • the invention relates to a device for monitoring of moving bodies and loom with such Contraption.
  • Monitoring devices are known in which non-contact magnetic, optical, photoelectric and inductive sensors are provided. Inductive and magnetic sensors can only be used for monitoring metallic body can be used while optical or photoelectric sensors sensitive to contamination and are therefore of limited use. Dust in particular and fine particles detached during operation, such as they e.g. occur during weaving, sit on the optical or photoelectric sensors. The consequence are false signals.
  • the invention has for its object a Device for monitoring moving bodies create, which does not have the disadvantage mentioned.
  • the device shown in Fig. 1 With the device shown in Fig. 1, the position a projectile P in a trap F one Projectile weaving machine monitored.
  • the device contains two light barriers 1, a control device 2, one Blow-off device 3 and a device 4 for Air supply.
  • the light barrier 1 is by two Light guides 5, 6 formed, with a light guide 5 as Transmitter and the other light guide 6 acts as a receiver.
  • the control device 2 contains two evaluation units 8, 9, each of which is connected to a light barrier and a control unit 10, which with the evaluation units 8, 9 is connected to transmit signals.
  • the blow-off device 3 includes an air manifold 15 connected to the Air supply device 4 is connected and four Hose lines 16, in each of which a light guide is arranged.
  • Air distributor 15 There is a first one in the air distributor 15 Line system 18 with throttles 19 to a medium flow to protect the light guides 5, 6 against dirt deposits to generate and a second line system 20 with a Control piston 21 provided to a medium flow to Removal of dirt deposits in one area to remove the free end of the light guides 5, 6.
  • the Air distributor 15 is a body in which the Line systems are designed in the form of bores. It should be noted that instead of a body a structure of the air distributor from the individual elements is possible.
  • FIG. 2. It is a holder 31 provided.
  • the hose line 16 is on the one hand held on the holder 31 by means of a connecting part 31 and on the other hand by means of a sleeve 33 to the Connection part 32 clamped.
  • the free end of the Light guide 5 is held in a version 34, the has a hexagonal cross section.
  • Version 34 is arranged in an air guide 35, which in the Holder 31 is inserted.
  • the air guide 35 is sleeve-shaped and has a tapered Section 36, which has a hole 37 for the passage of the Has rays of light.
  • the device In operation, the device is continuously with the Dirt medium, especially air, is supplied under 5-6 bar.
  • the air is in through the valve of the feed device 4 in the line system 18 fed with the chokes 19.
  • the chokes 19 are designed so that in the Hose lines 15 there is a flow, which the Deposition of dirt on the face of the Light guides 5 and 6 prevented. This function is done by supports the narrowing of the lead organ 35 and thus in advantageously achieved a cleaning effect. Because of the air flowing out of the guide member 35, air vortices arise, which lead to the deposition of Guide dirt particles in the area of the guide member 35. Out Because of this, purge air is at higher pressure across the Valve of the feed device 4 in the hose lines 16 passed, which the transmitter of the light barrier 1 forming light guide 5 included.
  • This air supply is done by switching the valve of the Feeding device 4.
  • the valve is controlled by the control unit 10 with which the pulse duration and the pulse interval is set.
  • the light guides 5 and 6 of a light barrier 1 are to an evaluation device 8, 9 connected. The execution of the light barrier 1 is known and is therefore not described.
  • the device comprises at least one light barrier 1 with two light guides 5, 6 and an evaluation device 8.
  • Each light guide 5, 6 is in a hose line 16 arranged, which is connected to an air distributor 15 is to keep an air flow along the light pipe and on to generate their free ends.
  • the device proves to be versatile, e.g. for monitoring grippers, thread feeders, etc. and weft threads.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Looms (AREA)
EP97810253A 1997-04-24 1997-04-24 Dispositif de contrÔle pour objets en mouvement et métier à tisser pourvu d'un tel dispositif Withdrawn EP0874075A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97810253A EP0874075A1 (fr) 1997-04-24 1997-04-24 Dispositif de contrÔle pour objets en mouvement et métier à tisser pourvu d'un tel dispositif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97810253A EP0874075A1 (fr) 1997-04-24 1997-04-24 Dispositif de contrÔle pour objets en mouvement et métier à tisser pourvu d'un tel dispositif

Publications (1)

Publication Number Publication Date
EP0874075A1 true EP0874075A1 (fr) 1998-10-28

Family

ID=8230218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810253A Withdrawn EP0874075A1 (fr) 1997-04-24 1997-04-24 Dispositif de contrÔle pour objets en mouvement et métier à tisser pourvu d'un tel dispositif

Country Status (1)

Country Link
EP (1) EP0874075A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19832895C1 (de) * 1998-07-22 2000-03-23 Dornier Gmbh Lindauer Vorrichtung und Verfahren zur Beseitigung von Faserflug auf Schußfadenüberwachungseinrichtungen in Luftdüsenwebmaschinen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497841A1 (fr) * 1981-01-13 1982-07-16 Rueti Te Strake Bv Metier a tisser a tuyeres
BE1001033A3 (nl) * 1987-11-05 1989-06-13 Picanol Nv Inslagwachter voor de detektie van gebroken of te lange inslagdraden.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497841A1 (fr) * 1981-01-13 1982-07-16 Rueti Te Strake Bv Metier a tisser a tuyeres
BE1001033A3 (nl) * 1987-11-05 1989-06-13 Picanol Nv Inslagwachter voor de detektie van gebroken of te lange inslagdraden.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19832895C1 (de) * 1998-07-22 2000-03-23 Dornier Gmbh Lindauer Vorrichtung und Verfahren zur Beseitigung von Faserflug auf Schußfadenüberwachungseinrichtungen in Luftdüsenwebmaschinen

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