EP0106969A1 - Installation de tondage pour bandes d'étoffe - Google Patents
Installation de tondage pour bandes d'étoffe Download PDFInfo
- Publication number
- EP0106969A1 EP0106969A1 EP83108231A EP83108231A EP0106969A1 EP 0106969 A1 EP0106969 A1 EP 0106969A1 EP 83108231 A EP83108231 A EP 83108231A EP 83108231 A EP83108231 A EP 83108231A EP 0106969 A1 EP0106969 A1 EP 0106969A1
- 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.)
- Granted
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 15
- 238000010008 shearing Methods 0.000 title claims description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 238000007664 blowing Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 230000002730 additional effect Effects 0.000 claims 1
- 239000000835 fiber Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000605 extraction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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 cylinder provided with shear spirals and arranged above a fabric web support and designed as a hollow cylinder with air passage openings arranged distributed over its jacket and with a suction device connected to at least one end of the shear cylinder and to its interior.
- the task of shearing devices is to rationalize material webs, i.e. can be processed precisely with large throughput, whereby the "cleaning" of raw fabric, the pile height equalization of pile goods, such as velvet, plush or the like. or the shaving of cloths is 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.
- DE-PS 16 35 304 From DE-PS 16 35 304 it is known, for example, without a cooperating undercutter with the shear cylinder on the latter Place an air jet device that presses the web surface to be sheared with compressed air in the opposite direction to the fabric to straighten the fibers to be sheared before reaching the shear point.
- the device according to DE-AS 16 35 304 uses a suction device which interacts with the shear cylinder and consists of a suction air source connected to the interior of the hollow shear cylinder shaft and sucks air from the outside of the shear cylinder through bores made in the shaft. This is intended to favor the pile erection and the removal of the sheared particles.
- a major deficiency of the known device is that the shear spirals of the shear cylinder do not interact with a lower knife and therefore cannot cut the fibers, but can only knock them off. This deficiency is obviously due to the fact that because of the arrangement of the blow nozzle device described there is no longer any space for a lower knife.
- 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 these 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 present invention has for its object to make available a shearing machine, the shear cylinder of which cooperates with a lower knife, with constructionally and apparatus-free measures, during its operation 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 Schzeug has a lower knife cooperating with the shear cylinder.
- shear spirals and the air passage openings are arranged on the non-protruding, smooth outer surface of the shear cylinder gives, in addition to simpler manufacture of the shear cylinder, 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.
- the fact that the shear cylinder over its length and in close association is surrounded on the circumference by a nozzle box closed except for a narrow section in the shear area, only where it makes sense and is necessary, namely shortly before and just behind the shear zone, that the surface of the web of material is supplied 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.
- the invention achieves a highly concentrated suction air stream which acts closely on the shear zone with the success that the threads, fibers or the like to be sheared are fed to the shear device with certainty directly in front of 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 in the device according to DE-AS 16 35 304 already only a pointed table as a material web due to the lack of a lower knife edition comes into question, a hollow table or a figure shear table can also be used in the device according to the invention.
- the cover is used to generate a vacuum space
- the nozzle box of the invention has the task of closely bundling the suction air flow onto the shear point.
- Devices of the construction described in DE-PS 916 046 also have the considerable disadvantage that the cut off shear material is accelerated by the shear spiral and centrifuged in non-definable directions.
- the self-ventilation of the shear cylinder prevents - from a certain rotation number / shear spiral number ratio - the suction, with the result that the shear is knocked down instead of being erected.
- the construction is complex because the suction mouth of the cyclone diffuser must expediently extend over the entire length of the shear cylinder.
- a very advantageous side effect of the invention is that the suction channel is formed by the cavity of the shear cylinder itself and is therefore present without further measures.
- the invention has succeeded in optimizing the basic idea of "shear cylinder suction" without taking over the disadvantages inherent in the previous systems.
- a nozzle tube is arranged in a machine-fixed manner in the interior of the shear cylinder at a short distance from the cylinder inner wall, the at least one nozzle arranged in a limited peripheral section being assigned to the shear zone area.
- the interior of the nozzle tube is suctioned off, as a result of which the suction air flow also bundles inside the shear cylinder onto the narrow cylinder zone opposite the nozzle opening and thus more strongly onto the shear zone.
- a particularly simple embodiment of the nozzle tube consists in that it has a longitudinal slot which forms the only nozzle opening.
- the invention also enables the additional arrangement of pressurized 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 web support to additionally apply compressed air to the back of the web.
- This supportive loading and penetration of the material web by means of compressed air from the back 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 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 to one or both ends of 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 the arrow 11 and whose outer 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 interact with a lower or counter knife 18 which is adjustably attached to the machine frame 17.
- 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.
- a hollow table 22/23 which has two table edges 22 and 23 and is spaced apart from one another, for a web 10 'is shown as an alternative possibility of a web support in FIG. 1 with dash-dotted lines.
- the individual shear spirals 15 are attached to the substantially smooth outer surface 13 of the shear cylinder 12 by means of a foot afford 24 by bracing by means of end rings 44 (Fig. 4) attached. 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.
- the cutting tool 12/18 can then do its job exactly.
- the sheared thread remnants are sucked off, also as a result of the negative pressure prevailing in the interior 28 of the shear cylinder.
- the current flow of these threads is indicated schematically by the arrow array 33.
- 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.
- the device shown in FIG. 2 differs from the device described with reference to FIG. 1 in that a nozzle tube 39 is arranged in a machine-fixed manner in the cylinder space 28 in close proximity to the cylinder inner 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 in FIG. 2 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 still 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.
- Fig. 3 clearly shows a shear cylinder in view, while in Fig. 3a some schematically Streams of the air sucked in from the cylinder exterior on and through the shear cylinder 12.
- FIG. 4 Another idea of the invention makes it possible to dispense with a particularly suction unit, which according to FIG. 4 e.g. this makes it possible for fans 42 to be arranged at the ends 41 of the shear cylinder 12 in a rotationally fixed manner therewith. 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. 5).
- 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. 5 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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823235160 DE3235160C2 (de) | 1982-09-23 | 1982-09-23 | Vorrichtung zum Scheren von Stoffbahnen |
| DE3235160 | 1982-09-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0106969A1 true EP0106969A1 (fr) | 1984-05-02 |
| EP0106969B1 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 |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0106969B1 (fr) |
| DD (1) | DD217839A5 (fr) |
| DE (1) | DE3235160C2 (fr) |
| ES (1) | ES8405459A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0594289A1 (fr) * | 1992-10-20 | 1994-04-27 | Shibata Iron Works Co., Ltd. | Tondeuse pour tissus |
| CN112210935A (zh) * | 2020-10-20 | 2021-01-12 | 孙华翔 | 一种服装表面线头去除装置 |
Families Citing this family (2)
| 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 |
| DE29823239U1 (de) * | 1998-12-30 | 2000-05-11 | Eduard Küsters Maschinenfabrik GmbH & Co. KG, 47805 Krefeld | Vorrichtung zum Floraufrichten |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3119167A (en) * | 1962-10-17 | 1964-01-28 | Curtis Marble Machine Co | Shearing apparatus for textile fabrics |
| GB1158373A (en) * | 1968-03-07 | 1969-07-16 | Riggs & Lombard Inc | Oscillating Shearing Apparatus |
| DE1635304A1 (de) * | 1967-07-03 | 1971-04-22 | Riggs & Lombard Inc | Verfahren und Vorrichtung zum Scheren von Stoffen |
| DE1635317A1 (de) * | 1967-10-21 | 1971-09-16 | Leo Sistig Kg Maschinenfabrik | Verfahren und Vorrichtung zum Abscheren von Geweben,in sbesondere Samt |
| DE2021673A1 (de) * | 1970-05-02 | 1971-12-02 | Mueller Franz Fa | Schermaschine mit Scherstaubabsaugung und Dochtschmierung |
| FR2222474A1 (fr) * | 1973-03-23 | 1974-10-18 | Menschner Textilmaschin Johann | |
| DE2402552A1 (de) * | 1974-01-19 | 1975-07-24 | Sistig Kg Leo | Vorrichtung zum entfernen des scherstaubes an den schneidwerken von schermaschinen |
Family Cites Families (5)
| 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 |
| US3008212A (en) * | 1959-08-10 | 1961-11-14 | Riggs & Lombard Inc | Rotary shearing member |
| DE1214191B (de) * | 1963-02-23 | 1966-04-14 | Franz Mueller Maschinenfabrik | Absaugvorrichtung fuer Schermaschinen |
| CH488845A (de) * | 1968-03-15 | 1970-04-15 | Riggs & Lombard Inc | Vorrichtung zum Abschneiden der von einem Stoffgewebe hochstehenden Stoffasern |
-
1982
- 1982-09-23 DE DE19823235160 patent/DE3235160C2/de not_active Expired
-
1983
- 1983-08-20 EP EP83108231A patent/EP0106969B1/fr not_active Expired
- 1983-08-31 DD DD25439483A patent/DD217839A5/de unknown
- 1983-09-15 ES ES525639A patent/ES8405459A1/es not_active Expired
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3119167A (en) * | 1962-10-17 | 1964-01-28 | Curtis Marble Machine Co | Shearing apparatus for textile fabrics |
| DE1635304A1 (de) * | 1967-07-03 | 1971-04-22 | Riggs & Lombard Inc | Verfahren und Vorrichtung zum Scheren von Stoffen |
| 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 |
| DE2021673A1 (de) * | 1970-05-02 | 1971-12-02 | Mueller Franz Fa | Schermaschine mit Scherstaubabsaugung und Dochtschmierung |
| FR2222474A1 (fr) * | 1973-03-23 | 1974-10-18 | Menschner Textilmaschin Johann | |
| DE2402552A1 (de) * | 1974-01-19 | 1975-07-24 | Sistig Kg Leo | Vorrichtung zum entfernen des scherstaubes an den schneidwerken von schermaschinen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0594289A1 (fr) * | 1992-10-20 | 1994-04-27 | Shibata Iron Works Co., Ltd. | Tondeuse pour tissus |
| CN112210935A (zh) * | 2020-10-20 | 2021-01-12 | 孙华翔 | 一种服装表面线头去除装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| ES525639A0 (es) | 1984-06-01 |
| DE3235160C2 (de) | 1985-08-29 |
| ES8405459A1 (es) | 1984-06-01 |
| DD217839A5 (de) | 1985-01-23 |
| DE3235160A1 (de) | 1984-03-29 |
| EP0106969B1 (fr) | 1988-06-08 |
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