EP0319939A1 - Procédé et manipulateur pour guider les fils en déplacement - Google Patents

Procédé et manipulateur pour guider les fils en déplacement Download PDF

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Publication number
EP0319939A1
EP0319939A1 EP88120409A EP88120409A EP0319939A1 EP 0319939 A1 EP0319939 A1 EP 0319939A1 EP 88120409 A EP88120409 A EP 88120409A EP 88120409 A EP88120409 A EP 88120409A EP 0319939 A1 EP0319939 A1 EP 0319939A1
Authority
EP
European Patent Office
Prior art keywords
threads
manipulator
thread
housing
feed
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
EP88120409A
Other languages
German (de)
English (en)
Other versions
EP0319939B1 (fr
Inventor
Erwin Stolarski
Hans-Rüdiger Dr. Schröder
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Priority to AT88120409T priority Critical patent/ATE78452T1/de
Publication of EP0319939A1 publication Critical patent/EP0319939A1/fr
Application granted granted Critical
Publication of EP0319939B1 publication Critical patent/EP0319939B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/86—Arrangements for taking-up waste material before or after winding or depositing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a manipulator and a method for guiding threads, but especially monofilaments with high single titers, during the start-up phase of processing machines such as e.g. Stretching or winding devices
  • suction pistols which essentially consist of a suction pipe with an injector effect, which can be connected to a compressed air source such that a flow from the front end towards the rear end of the suction pipe arises through the suction pipe.
  • the rear end of the suction tube which also serves as a handle, is often connected to an air-permeable container or ends in one, so that the thread can be sucked into the suction tube by the suction effect and deposited in the container.
  • the thread that continues to accumulate can be drawn from the front end of the suction gun handle, eg loop over godets or over a winder.
  • DE-A-35 17 117 shows as a partial solution a suction gun for monofilaments, which largely corresponds to known suction guns for other threads, but has a thread catcher which mechanically introduces the monofilament into the suction pipe.
  • a cutting device for the monofilament already obtained is also provided. However, this device does not solve the problem of also removing the rigid monofilaments.
  • European patent applications No. 0 230 974 and No. 0 241 850 relate to thread take-off devices which are intended to allow it, even on threads which run at very high speeds, to be sufficiently high Deduct tension.
  • the pneumatic feeding and the pneumatic conveying of the threads are supported by mechanical feeding devices. These consist of a conical roller or of two non-touching rollers with axial directions crossing at an acute angle, which rotate at a sufficiently high circumferential speed and which are wound in several turns by the thread to be drawn in.
  • the present invention is therefore based on the object of providing a method and a device with which even running threads which are difficult to grasp, such as, in particular, monofilaments, can be handled safely.
  • This object is achieved according to the invention by a method and a manipulator for guiding running threads, in which the thread material is drawn in and transported mechanically, mechanically comminuted and discharged in comminuted form.
  • the manipulator according to the invention like conventional devices, has a feed opening and an outlet opening for the filaments and differs from the previously known types in that it has a mechanical feed device which pulls the filaments through the feed opening into the interior of the device and to a cutting tool that cuts the threads into small sections that are ejected through the outlet opening. Furthermore, the manipulator according to the invention contains a drive unit through which the mechanical feed device and the cutting device are driven.
  • the manipulator according to the invention is given an elongated shape, the feed opening for the threads being located near one end and the opposite end of the manipulator being designed as a handle.
  • Fig. 1 shows a longitudinal section through a manipulator according to the invention in a schematic representation.
  • the feed opening (1) which opens into the feed channel (2).
  • the thread runs through the feed channel to the mechanical feed device (3), which transports it further through the connecting channel (7) and feeds it to the cutting device (4).
  • the cut filaments either exit through the outlet opening (5) or can be collected in a collecting container.
  • the feed device (3) and cutting device (4) are driven by the drive unit (8) via a power transmission (9).
  • a handle (6) is indicated that the manipulator should be easier to guide.
  • the mechanical feeding device expediently consists of a rotating roller-shaped component which pulls the thread into the feed opening, for example by friction on its surface, by clamping, for example, in a roller gap or by a surface configuration which can hook into the surface of the thread to be transported Feeds cutting device.
  • the thread transport can be positive or non-positive.
  • the drive unit expediently containing an electric or compressed air motor and being designed such that it drives the transport device at a freely selectable speed.
  • control devices for electric drive units are known and are used, for example, under the name torque control in hand drills, electric screwdrivers and the like.
  • a preferred embodiment for the feed device is a roller with knives on its circumference, the edges of which run essentially in the axial direction or extend spirally over the roller shell, which rotates in a housing enclosing them at a defined, small distance, and the thread in the space between the knife edges and the housing wall.
  • the feed opening for the thread is positioned in the housing of the manipulator so that the thread can be gripped and drawn in by the mechanical transport members during insertion.
  • the feed opening opens into a feed channel which gives the thread a direction which brings it into frictional engagement with the transport member.
  • the feed channel advantageously opens in the vicinity of the roller gap.
  • the collection body consists of one in one it closely enclosing housing rotating knife roller, the feed opening opens into a feed channel whose direction is a secant of the circle described by the rotating knife edges.
  • the mechanical cutting device of the manipulator according to the invention can have any known embodiment that can be accommodated in a handy housing.
  • a mechanical cutting device with a rotating cutting tool is expediently used.
  • a preferred cutting device has a knife-equipped, rotating roller, the knife edges of which extend essentially in the axial direction or have a spiral arrangement which rotates in a housing enclosing them at a defined distance, the distance between the housing inner wall and the knife edges in the region of the thread entry preferably being so It is great that the thread is gripped by the knives, taken along, but not yet cut, then increasingly narrows in the direction of rotation and the threads are cut off in the area where the distance of the inner wall of the housing from the knife edges falls below a critical minimum distance.
  • the thread sections can be discharged outside or they can be collected in a collecting container attached to the ejection opening.
  • the ejection of the thread sections is preferably supported by an air flow.
  • FIG. 2 schematically illustrates a device according to the invention in which the drawing-in device by means of a roller (3a) driven by the force transmission (9) and the counter-roller (3b) elastically pressed onto the latter (pressure device shown schematically in the drawing) and the cutting device (4) can be realized by a roller with knives on its circumference.
  • the funnel-shaped feed opening (1) opens in the immediate vicinity of the feed gap of the pair of rollers, so that a thread end or a thread loop inserted through it is gripped and drawn in by the rotating rollers (3a) and (3b). Due to its stiffness and elasticity, the thread that is drawn in is pushed through the connecting channel (7) of the cutting device (4).
  • This consists of a roller fitted with knives, which rotates in a narrow roller cage formed by the inner wall of the housing (10).
  • the distance between the inner wall of the housing and the knife circle (11) of the roller is widened to the extent that the incoming thread is first gripped and taken along by the knife. This distance then decreases in the direction of rotation to such an extent that the thread lying between the housing wall and the knives is cut off.
  • the resulting thread sections pass through the outlet opening (5) into the open or into a collecting container.
  • the drive unit (8) is housed, which drives the two feed rollers and the knife roller via the power transmission (9).
  • one non-positive coupling (8a) for example a hydraulic or magnetic coupling switched into the shaft transmission path.
  • the threads are drawn in and cut by one and the same knife roller.
  • the threads are expediently fed to the knife roller and cut at an angular distance ⁇ of 90 to 270 ° C.
  • 3a shows schematically a cross section through such a particularly preferred embodiment, in the sectional plane IIIa-IIIa shown in the longitudinal section of FIG. 3b.
  • 3a shows the feed and cutting roller (12) which rotates in the housing (10) with a small gap distance (13) between the knife circle (11) and the housing inner wall (15) and which is fitted with the knives (12a).
  • the section also shows the feed opening (1) and the feed channel (2) whose direction (2a) forms a secant of the knife circle.
  • the figure at (16) shows - for clarification in an exaggerated representation - the increased gap distance between the knife circle and the inner wall of the housing in continuation of the feed channel (2) and the narrowing of this gap distance in the cutting area (17).
  • 3b shows in addition to the housing (10), the knife roller (12) with the knives (12a), the expanded gap (16) between the knife circle and the inner wall of the housing, the encapsulated ball bearing (18) in which the knife shaft is mounted in the housing and that End of the knife shaft (19), which is connected to a drive unit (8).
  • milling heads can be used with good success as knife-covered rollers for thread transport and thread shredding.
  • a commercially available milling head can also be used as the cutter roller.
  • Working with the manipulator according to the invention can in principle be carried out in such a way that the beginning of the thread to be manipulated is inserted into the feed opening of the device to such an extent that it comes into non-positive connection with the feed element and from that point on it is automatically drawn in further becomes. If the thread is running, it is easy to get a thread beginning by cutting off the amount of thread that has already run out.
  • Difficulties can arise if the threads are very fast.
  • This can be done, for example, by a mechanical auxiliary device known per se from the technology of the suction pistols, which allows the running filament to be caught and into the feed area of the feed device bring to.
  • a slot that can be closed can be made in the roller housing in such a way that the connecting straight line of its lowest points forms a secant of the feed roller and thus a running thread inserted into this slot is gripped by the rotating roller surface and into the Manipulator can be retracted.
  • FIGS. 4a and 4b show the preferred embodiment of the manipulator according to the invention, FIGS. 3a and 3b, in which, however, to simplify the insertion of running threads, the upper housing part (10a) can be lifted from the rest of the housing by a certain amount D.
  • the division of the housing runs on the lines (20) and you can see that the division line runs through the feed channel (2).
  • FIG. 5 shows a side view of the device according to the invention according to FIG. 4a, but with the movable one Part of the housing (10a) has been lifted from the housing by the amount D, a continuous gap (21) being formed, into which the running thread can easily be inserted so that it comes to lie over the rotating knife circle. It can be seen that when the raised housing part (10a) is lowered at point (22), the thread is clamped between the two housing parts and is then taken along by the knife roller into the cutting area (17), where the cut is made.
  • the insertion of a running filament into the open housing gap can be additionally facilitated by providing the housing with projections (not shown) which form a funnel-shaped extension of the opened housing gap.
  • the main advantage of using the manipulator according to the invention is its universal applicability for guiding fast running threads of all kinds, in particular also those that have a high degree of stiffness, e.g. high-titer monofilaments, and which for this reason cannot be handled with conventional pneumatic devices.
  • Another advantageous use of the device according to the invention is the processing of thread waste, in particular of waste quantities of coarse-titer monofilaments. It is thus possible to convert the filament quantities spun out in the start-up phase of a spinning system before setting constant filament properties, which, especially if the material is relatively stiff, form a voluminous heap that is no longer manageable, in a manageable and recyclable form bring.
  • the material of defective bobbins can also be conveniently processed and, if necessary, returned to the spinning process.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP88120409A 1987-12-09 1988-12-07 Procédé et manipulateur pour guider les fils en déplacement Expired - Lifetime EP0319939B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88120409T ATE78452T1 (de) 1987-12-09 1988-12-07 Verfahren und manipulator zum fuehren von laufenden faeden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3741673 1987-12-09
DE19873741673 DE3741673A1 (de) 1987-12-09 1987-12-09 Verfahren und manipulator zum fuehren von laufenden faeden

Publications (2)

Publication Number Publication Date
EP0319939A1 true EP0319939A1 (fr) 1989-06-14
EP0319939B1 EP0319939B1 (fr) 1992-07-22

Family

ID=6342181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120409A Expired - Lifetime EP0319939B1 (fr) 1987-12-09 1988-12-07 Procédé et manipulateur pour guider les fils en déplacement

Country Status (4)

Country Link
US (1) US4924554A (fr)
EP (1) EP0319939B1 (fr)
AT (1) ATE78452T1 (fr)
DE (2) DE3741673A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI925733A (fi) * 1991-12-21 1993-06-22 Hoechst Ag Foerfarande och manipulator foer styrning av loepande traodar
IT1393343B1 (it) * 2008-04-18 2012-04-20 Oerlikon Textile Gmbh & Co Kg Metodo e dispositivo per il taglio con continuita' di fibre
DE102018115601A1 (de) * 2018-06-28 2020-01-02 Saurer Spinning Solutions Gmbh & Co. Kg Fadenumlenkeinheit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH512390A (de) * 1970-03-06 1971-09-15 Heberlein & Co Ag Vorrichtung zum Erfassen mindestens eines Fadens und Aufbringen desselben auf eine Aufwickelhülse
DE3517117A1 (de) * 1985-05-11 1986-11-13 Georg Sahm GmbH & Co KG, 3440 Eschwege Absaugpistole fuer monofilamente, baendchen und andere faeden

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400414A1 (fr) * 1977-08-17 1979-03-16 Boyer Clody Dispositif de coupe et d'egalisation des poils et cheveux
JPS5766839A (en) * 1980-10-09 1982-04-23 Mitsubishi Heavy Ind Ltd Chip processor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH512390A (de) * 1970-03-06 1971-09-15 Heberlein & Co Ag Vorrichtung zum Erfassen mindestens eines Fadens und Aufbringen desselben auf eine Aufwickelhülse
DE3517117A1 (de) * 1985-05-11 1986-11-13 Georg Sahm GmbH & Co KG, 3440 Eschwege Absaugpistole fuer monofilamente, baendchen und andere faeden

Also Published As

Publication number Publication date
DE3741673A1 (de) 1989-06-22
EP0319939B1 (fr) 1992-07-22
ATE78452T1 (de) 1992-08-15
US4924554A (en) 1990-05-15
DE3873047D1 (de) 1992-08-27

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