EP0114568A1 - Dispositif pour arrêter une mêche - Google Patents

Dispositif pour arrêter une mêche Download PDF

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Publication number
EP0114568A1
EP0114568A1 EP19830810558 EP83810558A EP0114568A1 EP 0114568 A1 EP0114568 A1 EP 0114568A1 EP 19830810558 EP19830810558 EP 19830810558 EP 83810558 A EP83810558 A EP 83810558A EP 0114568 A1 EP0114568 A1 EP 0114568A1
Authority
EP
European Patent Office
Prior art keywords
stop device
sliver
magnetically acting
clamping member
clamping
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
EP19830810558
Other languages
German (de)
English (en)
Other versions
EP0114568B1 (fr
Inventor
Eduard Marthaler
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.)
Loepfe AG Gebrueder
Original Assignee
Loepfe AG Gebrueder
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 Loepfe AG Gebrueder filed Critical Loepfe AG Gebrueder
Publication of EP0114568A1 publication Critical patent/EP0114568A1/fr
Application granted granted Critical
Publication of EP0114568B1 publication Critical patent/EP0114568B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/18—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material stopping supply only

Definitions

  • the invention relates to a sliver stop device on spinning machines for interrupting the sliver transport in the event of thread breakage.
  • a sliver stop device which has become known has a stop segment which has the shape of a slotted hollow cylinder and is placed on a corrugated area of an inlet-side stretching roller and is held by the corrugated part thereof.
  • a lever system which engages in the stop segment is connected to a thread sensor arranged on the output side of the drafting system and is controlled by it.
  • the stop segment on the drafting roller is released and taken along by the incoming sliver until the stop segment is jammed between the counter roller and the drafting roller and the sliver passing through is held and thus severed.
  • Another known sliver stop device has a sliver guide tube in which the sliver is guided in an opening transversely to its longitudinal axis.
  • a coaxial, displaceable stamp in the sliver guide tube, the actuating movement of which is controlled by a photoelectric thread monitor.
  • the match stop device is installed on the intake side of the drafting system.
  • the main disadvantage of the first device is that it cannot be mounted on drafting devices of different devices or brands.
  • the mass of the stop segment must be matched very precisely to the intended corrugated shaft. Above all, these are the inside diameter in the area of the corrugated cylinder, the collar mass on both sides of the corrugated cylinder, the length between the collars and the wedge angle of the stop segment, which is necessary for the functional retraction of the same.
  • the second embodiment of a sliver stop device also requires a great deal of space, which is generally not available in the area of the drafting system.
  • the sheared clamping of the fuse in the match stop device leads to the formation of feet between the match guide tube and the coaxial stamp sliding therein, which worsens the effect of the match stop device. Since the fuse must be inserted through an opening in the Lunten Operationss- 'pipe, the insertion of the fuse requires a relatively long time and skill.
  • the aim of the invention is to create an easy-to-use, very little space-consuming and not pollution-prone match stop device which can be attached to drafting systems of various types of construction without extensive adaptation work. /
  • the sliver stop device can have the features of claims 2 to 10.
  • the other leg of the frame 1 has a second magnetic rod 4 approximately opposite the joint of the clamping arm 2 ', which projects somewhat into the pivoting range of the clamping arm 2'.
  • second magnetic bars 4 it is also possible to provide a plurality of second magnetic bars 4 parallel to one another. Only the last second magnetic rod 4 protrudes into the swivel range of the clamping arm 2 '. The second magnetic bars 4 are attractively polarized to the first magnetic bar 3 arranged on the clamping arm 2 '.
  • the clamping arm 2 ' In the open position of the sliver stop device, the clamping arm 2 'is pulled from the coil with an iron core. The fuse 8 slides along the other leg over the second magnetic bars 4.
  • the coil with iron core 5 receives current and the magnetic field that builds up knocks the first magnetic rod 3 mounted on the clamping arm 2 '. This reaches the area of attraction of the second magnetic bars 4 and is pulled against the second magnetic bar 4 projecting into the pivoting area of the clamping arm 2 '.
  • the fuse between these two magnetic bars 3 and 4 is clamped and their further transport is prevented.
  • the clamping arm 2 ' is reset by hand by the operator who is already manipulating the fuse or by an electrical or electromechanical reset device.
  • FIG. 2 In another embodiment (FIG. 2) of a sliver stop device, a slide element 2 ′′ guided in a slot is used instead of a clamping arm 2 ′ as a carrier for the first magnetic rod 3.
  • the magnetic rod 3 In the open position, the magnetic rod 3 is again attracted to the coil with iron core 5 If the thread breaks, the bobbin with iron core 5 receives current again and repels the first magnetic rod 3.
  • the fuse 8 is clamped by the attraction of the second magnetic rods 4.
  • the reset can be done manually or by a reset device, for example a spring
  • a reset device for example a spring
  • electromagnets instead of the first or second magnetic rods 3 or 4, which are permanent magnets, so that the attractive and repulsive forces, and therefore also the closing forces, can be metered very precisely .
  • the Closing Force to control pressure-dependent by providing a support of the clamping elements with a pressure sensor and this regulates the closing force via a control device.
  • the clamping elements which are formed by the first and second magnetic rods 3 and 4 in the first and second embodiment, can also carry cams or other elevations or a profile that enables a partially positive clamping, so that the clamping forces can be kept small. This can be particularly advantageous for certain materials.
  • this sliver stop device lies in the easily accessible and free sliver path and in the very simple manufacture of the device. In some variants, the good and controllable clamping force is also essential.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19830810558 1983-01-12 1983-12-02 Dispositif pour arrêter une mêche Expired EP0114568B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH141/83 1983-01-12
CH14183A CH660039A5 (de) 1983-01-12 1983-01-12 Luntenstopvorrichtung.

Publications (2)

Publication Number Publication Date
EP0114568A1 true EP0114568A1 (fr) 1984-08-01
EP0114568B1 EP0114568B1 (fr) 1986-05-28

Family

ID=4180180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830810558 Expired EP0114568B1 (fr) 1983-01-12 1983-12-02 Dispositif pour arrêter une mêche

Country Status (3)

Country Link
EP (1) EP0114568B1 (fr)
CH (1) CH660039A5 (fr)
DE (1) DE3363821D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19507266C1 (de) * 1995-03-03 1996-10-10 Chemnitzer Spinnereimaschinen Luntenstopvorrichtung für Streckwerke an Spinnmaschinen
IT201800009797A1 (it) * 2018-10-29 2020-04-29 Fameccanicadata Spa Dispositivo di intrappolamento per un filo

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH286065A (de) * 1949-10-29 1952-10-15 Perfogit S P A Vorrichtung zum Abtrennen von Fäden, die in einer sie verarbeitenden Maschine, beispielsweise in einer Fadenstreckeinrichtung, gebrochen sind.
GB1154847A (en) * 1965-07-16 1969-06-11 Edmund Hamel Improvements in Stop Motions for Spinning Frames and the like
FR2211551A1 (en) * 1972-12-22 1974-07-19 Rueti Te Strake Bv Electromagnetic yarn clamp - esp. for N.C. high speed multicolour loom, giving quick response and reducing waste to minimum
DE2619430A1 (de) * 1976-05-03 1977-11-24 Schlafhorst & Co W Vorrichtung zur ueberwachung des fadenlaufs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH286065A (de) * 1949-10-29 1952-10-15 Perfogit S P A Vorrichtung zum Abtrennen von Fäden, die in einer sie verarbeitenden Maschine, beispielsweise in einer Fadenstreckeinrichtung, gebrochen sind.
GB1154847A (en) * 1965-07-16 1969-06-11 Edmund Hamel Improvements in Stop Motions for Spinning Frames and the like
FR2211551A1 (en) * 1972-12-22 1974-07-19 Rueti Te Strake Bv Electromagnetic yarn clamp - esp. for N.C. high speed multicolour loom, giving quick response and reducing waste to minimum
DE2619430A1 (de) * 1976-05-03 1977-11-24 Schlafhorst & Co W Vorrichtung zur ueberwachung des fadenlaufs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19507266C1 (de) * 1995-03-03 1996-10-10 Chemnitzer Spinnereimaschinen Luntenstopvorrichtung für Streckwerke an Spinnmaschinen
IT201800009797A1 (it) * 2018-10-29 2020-04-29 Fameccanicadata Spa Dispositivo di intrappolamento per un filo

Also Published As

Publication number Publication date
EP0114568B1 (fr) 1986-05-28
DE3363821D1 (en) 1986-07-03
CH660039A5 (de) 1987-03-13

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