EP0106969B1 - Installation de tondage pour bandes d'étoffe - Google Patents

Installation de tondage pour bandes d'étoffe Download PDF

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Publication number
EP0106969B1
EP0106969B1 EP83108231A EP83108231A EP0106969B1 EP 0106969 B1 EP0106969 B1 EP 0106969B1 EP 83108231 A EP83108231 A EP 83108231A EP 83108231 A EP83108231 A EP 83108231A EP 0106969 B1 EP0106969 B1 EP 0106969B1
Authority
EP
European Patent Office
Prior art keywords
shear
cylinder
shear cylinder
nozzle
suction
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
Application number
EP83108231A
Other languages
German (de)
English (en)
Other versions
EP0106969A1 (fr
Inventor
Alfonsius Adrianus Johannes Van Dijk
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.)
Johannes Menschner Maschinenfabrik GmbH and Co KG
Original Assignee
Johannes Menschner Maschinenfabrik GmbH and Co KG
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 Johannes Menschner Maschinenfabrik GmbH and Co KG filed Critical Johannes Menschner Maschinenfabrik GmbH and Co KG
Publication of EP0106969A1 publication Critical patent/EP0106969A1/fr
Application granted granted Critical
Publication of EP0106969B1 publication Critical patent/EP0106969B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C13/00—Shearing, clipping or cropping surfaces of textile fabrics; Pile cutting; Trimming seamed edges

Definitions

  • the invention relates to a device for shearing fabric webs with a shear spiral provided and arranged above a fabric web support and interacting with a lower knife, designed as a hollow cylinder designed shear cylinder with air passage openings distributed over its jacket and connected to at least one front end of the shear cylinder and to its interior Suction device.
  • the task of shearing devices is to rationalize material webs, i. H. Can be processed precisely with a large throughput of goods, whereby the "cleaning" of raw fabric, the pile height equalization of pile goods, such as velvet, plush or the like, or the shearing of cloths are possible. It is extremely important that the surface of the shear has an exactly uniform appearance after processing. In order to achieve this, it is necessary that the pile or the threads to be sheared are optimally fed to the web in the Schzeug. In particular, it is necessary to take measures which cause the fibers to be sheared to be erected at the shear point. Above all, the sheared particles should be removed immediately and completely from the shear zone.
  • the invention is based on a z. B. from US-A-3 008 212 known device.
  • the shear spirals are fastened on ribs running helically over the shaft jacket, while the air passage openings are arranged in the groove bases formed between the ribs.
  • This structurally complex measure has the disadvantage that the air is caught between the ribs carrying the shear spirals and pulsates there and that the ribs themselves are not in the suction air flow.
  • the object of the present invention is to make available a shearing machine, the shear cylinder of which cooperates with a lower knife, with measures which are not complex in terms of construction and apparatus, during operation of which the straightening of the fibers or threads to be sheared and the removal of the particles to be removed in any case is ensured.
  • shear spirals and the air passage openings are arranged on the non-protruding, smooth outer surface of the shear cylinder, that the shear cylinder is surrounded over its length and in close association on the circumference by a nozzle box which is closed except for a narrow suction opening in the shear area, and in that Interior of the shear cylinder with a small distance to the cylinder inner wall, a nozzle tube is arranged in a machine-fixed manner, the at least one nozzle of which is arranged in a limited peripheral section is assigned to the shear zone.
  • the nozzle tube can have a longitudinal slot which forms the only nozzle.
  • shear spirals and the air passage openings are arranged on the non-protruding smooth outer surface of the shear cylinder, in addition to simplifying the manufacture of the shear cylinder, has the advantage that the helical grooves provided between two shear spirals extend uninterruptedly over the entire length of the shear cylinder, so that at each The suction can take effect on the web covered by the shear cylinder. Because the shear cylinder is surrounded over its length and in close association on the circumference by a nozzle box which is closed except for a narrow section in the shear area, the web surface is only where it makes sense and is necessary, namely just before and just behind the shear zone charged with suction air.
  • the suction device constantly sucks in air from the entire environment of the shear cylinder, that is to say for the most part in areas in which this has no effect.
  • an extraordinarily oversized suction fan is therefore required in addition to a compressed air device in the known device.
  • the lower knife interacting with the shear cylinder can be arranged without the blowing nozzle required for the previously known object.
  • a nozzle tube is arranged machine-fixed, the at least one nozzle arranged in a limited circumferential section is assigned to the shear zone, the interior of this nozzle tube is suctioned off, causing the suction air flow within the shear cylinder to the Narrow cylinder zone opposite the nozzle opening and thus bundles even more strongly on the shear zone.
  • the invention achieves a strongly bundled suction air flow which acts closely on the shear zone with the success that the threads, fiber or the like to be sheared are fed to the shear device with certainty immediately before the shear zone and the separated particles are immediately behind the The shear point.
  • Another advantage of the invention is that its success is not dependent on the type of web support. While, for example, in the device according to DE-A-1 635 304, due to the lack of a lower diameter, only a pointed table can be considered as a web order, a hollow table or a figure shear table can also be used in the device according to the invention.
  • the invention also enables the additional arrangement of compressed air to be applied to the rear of the fabric web without difficulty in that a blowing nozzle is provided in the region of the fabric support to additionally apply compressed air to the rear of the fabric web.
  • This supportive loading and penetration of the material web by means of compressed air from the rear could possibly be advantageous to use in the case of particularly difficult shear material.
  • the outlay on equipment can be kept to a minimum by providing a single blower for extracting the shear cylinder and for pressurizing the back of the fabric web, the suction side of which is air-conducting with the shear cylinder and the pressure side - with the interposition of a dust filter - with the blowing nozzle connected is.
  • At least one fan arranged on or in the end region thereof can be connected in a rotationally fixed manner to the shear cylinder.
  • This rotating fan, rotating with the rotating shear cylinder - axial fan or radial fan - does not require its own drive.
  • the arrangement also has the advantage that the suction power is set fully automatically and without further measures depending on the speed of rotation of the shear cylinder.
  • the shear cylinder can have a fan at both ends, both fans, acting in opposite directions, generating negative pressure in the cylinder interior. It is also possible to provide the shear cylinder with a closed base on one side and to carry out the extraction only at the other end by means of a fan.
  • the "self-suction" of the shear cylinder also offers the advantage of a further embodiment, which consists in the fact that the shear cylinder can be directly connected with one or both ends to a dust separator, for example integrated in the machine frame.
  • a device for shearing a fabric web 10 has a shear cylinder 12 which is driven to rotate in the direction of arrow 11 and whose outer lateral surface 13 is equipped with a large number of shear blades 14.
  • the individual shear blades 14 run helically in the longitudinal direction of the shear cylinder 12 (see also FIG. 3), so that in the following the shear blades 14 will be referred to as shear spirals 15.
  • the shear cylinders 12 act with one on the machine frame 17 adjustable bottom or counter knife 18 together.
  • FIG. 1 In the shear area 16, the web 10 of FIG. 1 with its fibers or pile 19 pointing in the direction of the shear 12/18 is guided over a pointed table 20 as a web support 21.
  • the individual shear spirals 15 are fastened to the substantially smooth outer surface 13 of the shear cylinder 12 by means of baseboards 24 by bracing by means of end rings 44 (FIG. 4). Apart from these foot pieces, the spiral grooves 25 have no projections in their longitudinal direction over the shear cylinder 12. There are no protrusions across the spiral grooves 25 at all.
  • the relatively thin-walled cylinder jacket 26 is provided, in as regular a distribution as possible, with a large number of air passage openings 27 which, in the exemplary embodiment, are designed as elongated holes extending in the longitudinal direction of the shear cylinder 12 (see FIGS. 3 to 4).
  • the interior 28 of the hollow shear cylinder 12 is in an air-conducting connection with a suction device (not shown in FIG. 1) in such a way that the air surrounding the outside of the shear cylinder 12 is sucked into the interior 28 and then transported axially.
  • the resulting suction sucks off the particles to be removed and serves to straighten the pile to be sheared or the threads 19 of the web 10 to be sheared towards the shear zone 16 in order to feed them to the shearer 12/18 in a cut-like manner.
  • the shear cylinder 12 is surrounded by a nozzle box 29 at short intervals on all sides.
  • a nozzle pipe 39 is also arranged in a machine-fixed manner in close proximity to the inner cylinder surface 38.
  • "Machine-proof" means that the nozzle tube can be adjusted about its longitudinal axis if desired, but does not rotate together with the shear cylinder 12.
  • the nozzle tube 39 has a single slit-shaped nozzle 40, which is shown in the cross section of FIG. 1 as a cross-sectional interruption directly associated with the shear zone 16.
  • the nozzle tube 39 with its narrow nozzle 40 assigned to the shear zone 16 brings about a further concentration of the suction flow, which in the exemplary embodiment shown acts on only two air passage openings 27 positioned immediately in front of and immediately behind the shear zone 16.
  • a blowing nozzle 34 can be arranged in the web support 21, which is also illustrated by broken lines in FIG. 1, and is then connected to a blower 36 via an air duct 35.
  • This compressed air device blows a compressed air flow 37 from the back of the web 10a through the web 10 in the direction of the shear zone 16 and thereby supports the erection of the pile 19 and the blowing out of adhering loose particles.
  • this additional compressed air device can be provided in addition to the extraction described.
  • FIG. 2 clearly shows a shear cylinder in view, while in FIG. 2a a schematically shows some flow threads of the air sucked in from the cylinder exterior on and through the shear cylinder 12.
  • Another idea of the invention makes it possible to dispense with a particularly suction unit, which according to FIG. B. is thereby possible that at the ends 41 of the shear cylinder 12 with this rotatably connected fans 42 are arranged. These fans 42 generate a negative pressure in the interior 28 of the shear cylinder 12, which increases due to the rotational speed of the fans 42 increasing with the increasing speed of the shear cylinder 12. The air sucked in from the outside environment of the shear cylinder 12 is then sucked towards both ends 41 of the shear cylinder and blown, for example, into downstream dust separation devices 43 (FIG. 4).
  • the fan 42 shown can be seen as an axial fan. It is of course also possible to drive the impeller of a radial fan with the shear cylinder 12 instead.
  • Fig. 4 shows schematically the direct connection of two shear cylinders to two dust separators 43.
  • the shear cylinders connected directly to the dust separators 43 due to the fans 42 integrated in the shear cylinder, without the need for downstream pipelines leading to external fans would be required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (8)

1. Dispositif pour tondre des bandes (10) d'étoffe avec un cylindre (12) de tonte qui, réalisé comme cylindre creux disposé au-dessus d'un plateau-support (21) de bande d'étoffe, est muni d'hélices de tonte (15) et coopère avec une lame tondeuse inférieure (18) et qui possède des orifices (27) de passage d'air répartis sur son enveloppe (13), ainsi qu'avec un dispositif d'aspiration raccordé à l'une au moins des extrémités frontales du cylindre (12) de tonte et à sa cavité intérieure (28),
caractérisé par le fait que les hélices (15) de tonte et les orifices (27) de passage de l'air sont disposés sur la surface (13) unie et sans saillie de l'enveloppe du cylindre (12) de toute et que ce dernier est entouré sur toute sa longueur et selon une conception épousant de très près son enveloppe par un caisson (29) à buses fermé à l'exception d'une étroite ouverture (30) d'aspiration prévue dans la zone (16) de la tonte, et que dans la cavité intérieure (28) du cylindre (12) de tonte est placé, à faible distance de la paroi interne (38) du cylindre, un tube (39) à buses solidarisé à la machine dont au moins une buse (40), disposée dans une portion limitée de la circonférence, est prévue pour desservir la zone (16) de la tonte.
2. Dispositif selon la revendication 1, caractérisé par le fait que le tube (39) à buses présente une fente longitudinale qui constitue la buse (40) unique.
3. Dispositif selon la revendication 1 ou 2, caractérisé par le fait qu'une buse soufflante (34) est prévue dans la zone du support (21) pour la bande d'étoffe pour faire agir en complément de l'air comprimé (37) sur le revers (10a) de la bande d'étoffe.
4. Dispositif selon la revendication 3, caractérisé par le fait qu'une seule soufflerie (36) dont le côté aspiration (36b) est en communication par conduite pneumatique avec le cylindre (12) de tonte et dont le côté refoulement (36a) l'est de façon analogue avec la buse soufflance (34), est prévue pour l'aspiration du cylindre (12) de tonte et pour fournir l'air comprimé agissant sur le revers (10a) de la bande d'étoffe.
5. Dispositif selon l'une des revendications 1 à 4, caractérisé par le fait qu'au moins un ventilateur (42), placé dans la section de l'extrémité (41) frontale du cylindre (12) de tonte ou sur celle-ci, est relié de manière solidaire en rotation audit cylindre.
6. Dispositif selon la revendication 5, caractérisé par le fait que le cylindre (12) de tonte présente à chacune de ses deux extrémités un ventilateur (42), étant entendu que les deux ventilateurs, qui agissent à contre-courant l'un par rapport à l'autre, génèrent une dépression dans la cavité intérieure (28) du cylindre.
7. Dispositif selon l'une des revendications 1 à 6, caractérisé par le fait que le cylindre (12) de tonte est directement branché par l'une de ses extrémités frontales (41), ou par les deux, à un dispositif (43) de séparation des poussières.
EP83108231A 1982-09-23 1983-08-20 Installation de tondage pour bandes d'étoffe Expired EP0106969B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3235160 1982-09-23
DE19823235160 DE3235160C2 (de) 1982-09-23 1982-09-23 Vorrichtung zum Scheren von Stoffbahnen

Publications (2)

Publication Number Publication Date
EP0106969A1 EP0106969A1 (fr) 1984-05-02
EP0106969B1 true EP0106969B1 (fr) 1988-06-08

Family

ID=6173914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108231A Expired EP0106969B1 (fr) 1982-09-23 1983-08-20 Installation de tondage pour bandes d'étoffe

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EP (1) EP0106969B1 (fr)
DD (1) DD217839A5 (fr)
DE (1) DE3235160C2 (fr)
ES (1) ES8405459A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3538922C1 (de) * 1985-11-02 1987-04-02 Menschner Maschf Johannes Vorrichtung zum Scheren einer bewegten Stoffbahn
EP0594289A1 (fr) * 1992-10-20 1994-04-27 Shibata Iron Works Co., Ltd. Tondeuse pour tissus
DE29823239U1 (de) * 1998-12-30 2000-05-11 Eduard Küsters Maschinenfabrik GmbH & Co. KG, 47805 Krefeld Vorrichtung zum Floraufrichten
CN112210935B (zh) * 2020-10-20 2021-06-11 江苏维娜时装有限公司 一种服装表面线头去除装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008212A (en) * 1959-08-10 1961-11-14 Riggs & Lombard Inc Rotary shearing member

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916046C (de) * 1951-11-24 1954-08-02 Monforts Fa A Maschine zum Scheren von Geweben
DE1038517B (de) * 1956-03-27 1958-09-11 Erich Kiefer Lochtrommeltrockner
US3119167A (en) * 1962-10-17 1964-01-28 Curtis Marble Machine Co Shearing apparatus for textile fabrics
DE1214191B (de) * 1963-02-23 1966-04-14 Franz Mueller Maschinenfabrik Absaugvorrichtung fuer Schermaschinen
DE1635304C3 (de) * 1967-07-03 1981-01-22 Riggs & Lombard, Inc., Lowell, Mass. (V.St.A.) Vorrichtung zum Scheren einer sich bewegenden Stoffbahn
DE1635317A1 (de) * 1967-10-21 1971-09-16 Leo Sistig Kg Maschinenfabrik Verfahren und Vorrichtung zum Abscheren von Geweben,in sbesondere Samt
GB1158373A (en) * 1968-03-07 1969-07-16 Riggs & Lombard Inc Oscillating Shearing Apparatus
CH488845A (de) * 1968-03-15 1970-04-15 Riggs & Lombard Inc Vorrichtung zum Abschneiden der von einem Stoffgewebe hochstehenden Stoffasern
DE2021673A1 (de) * 1970-05-02 1971-12-02 Mueller Franz Fa Schermaschine mit Scherstaubabsaugung und Dochtschmierung
CH573497A5 (fr) * 1973-03-23 1976-03-15 Menschner Textil Johannes
DE2402552B2 (de) * 1974-01-19 1975-11-13 Leo Sistig Kg, 4150 Krefeld Vorrichtung zum Entfernen des Scherstaubes an den Schneidwerken von Schermaschinen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008212A (en) * 1959-08-10 1961-11-14 Riggs & Lombard Inc Rotary shearing member

Also Published As

Publication number Publication date
ES525639A0 (es) 1984-06-01
DE3235160A1 (de) 1984-03-29
ES8405459A1 (es) 1984-06-01
EP0106969A1 (fr) 1984-05-02
DD217839A5 (de) 1985-01-23
DE3235160C2 (de) 1985-08-29

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