US3452626A - Device for entraining and cutting a moving threadline - Google Patents
Device for entraining and cutting a moving threadline Download PDFInfo
- Publication number
- US3452626A US3452626A US567100A US3452626DA US3452626A US 3452626 A US3452626 A US 3452626A US 567100 A US567100 A US 567100A US 3452626D A US3452626D A US 3452626DA US 3452626 A US3452626 A US 3452626A
- Authority
- US
- United States
- Prior art keywords
- threadline
- yarn
- filament
- slot
- tube
- 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 - Lifetime
Links
- 238000005520 cutting process Methods 0.000 title description 12
- 239000012530 fluid Substances 0.000 description 13
- 230000009471 action Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 3
- 241000251170 Hexanchidae Species 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
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
- B65H51/00—Forwarding filamentary material
- B65H51/16—Devices for entraining material by flow of liquids or gases, e.g. air-blast devices
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/202—With product handling means
- Y10T83/2066—By fluid current
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/364—By fluid blast and/or suction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/647—With means to convey work relative to tool station
- Y10T83/6472—By fluid current
Definitions
- a device for entraining and cutting a threadline comprises a tube having a longitudinal slot in the wall thereof and uid jet means associated with the slot for creating a stream of fluid which draws the threadline through the slot when the device is brought into proximity with the threadline.
- the threadline is cut as it is drawn into the slot by a blade disposed so as to be contacted by the threadline, and thereafter the threadline passes into a disposal pipe which is in communication with one end of the tube.
- the present invention relates to the entrainment of a threadline away from the position where it is being processed to a waste disposal system.
- a filament or yarn entrainment device so designed and constructed that, when proximated to a continuous filament or yarn in lengthwise motion, a portion of the said filament or yarn becomes substantially fully enclosed within a cavity communicating with a disposal pipe the said filament or yarn within the said cavity remaining substantially linearly disposed and the said filament or yarn being, or by alteration of the attitude of the said entrainment device in a predetermined direction subsequently becoming, acted upon by at least one stream of fluid in such a manner as to apply to the said filament or yarn a predetermined force in the direction of motion of the said tilament or yarn, the said filament or yarn being simultaneously or subsequently severed Iand the said filament or yaru being entrained and directed down the said disposal pipe communicating with the said cavity.
- a filament or yarn entrainment device consisting of a tube, the one end communicating with a disposal pipe for waste filament or yarn and the other end being free, a slot of substantially uniform width extending from the free end and extending substantially the whole length of said tube and being disposed in a substantially parallel manner to the axis of the tube, said slot being of width small in comparison with the inner perimeter of the said tube, the said tube bearing a plurality of apertures communicating with a supply of fluid at greater than atmospheric pressure, said apertures being of such coniiguration and disposition that the uid supplied to the said apertures produces jets which are directed away from the free end of the tube and the jets emanating from the said apertures adjacent to the slot being furthermore directed inwards and away from the slot.
- proximated to a continuous filament or yarn we mean that the device is brought up to the lilaments or yarn and made to enclose it without substantially deliecting the filament lor yarn from the path which it is following until immediately before the severing of the filaments or yarn takes place.
- the action may, for example, be as follows:
- the entrainment device is held by hand with the side in which the slot is situated being towards the threadline.
- the threadline becomes subjected to the flow of air induced along the tube constituting the cavity and in the direction of the disposal pipe.
- the still entire threadline will be running freely through the cavity and slightly diverted from its normal path.
- cutting of the threadline can be effected without release of tension upstream of the entrainment device.
- a cutter associated Iwith the entrainment device in such manner that it comes into effect as soon as the threadline has become enclosed within the cavity.
- a cutter can, for example, consist of a pair of sharpened blades crossed and in contact, similar to a pair of scissors fixed in the open position, and located at the bottom end of the slot, that is the end closer to the disposal pipe.
- the threadline Since it is required to sever the threadline at a single point along its length, it is desirable that the threadline should be offered to the cutting effect very rapidly so that the time during which the cutter and threadline are in suicient contact to cause damage to the threadline but not to sever it, is reduced to a minimum.
- An alternative method of operation of the entrainment device is to move it towards the threadline with the axis of the cavity in the same plane as the threadline but not parallel to it, the end of the slot more distant from the disposal pipe being closer to the threadline than the remainder of the slot.
- the entrainment device may then be brought into a position where a portion of the threadline becomes substantially fully enclosed within the cavity, but not within a sufficient length of the cavity for a Sullicient length of the threadline to be acted upon by the induced air-flow for the threadline to be diverted at all or significantly from its normal path.
- the attitude of the entrainment device may then be alterned so that the axis of the cavity becomes substantially parallel to the normal path of the threadline.
- This maneuver is carried out by using as a pivot for the alteration of attitude of the entrainment device a point within the part of the cavity already enclosing the threadline,
- the cutting of the threadline is arranged to take place approximately as the axis of the cavity becomes parallel to the threadline. The same considerations in respect of speed of cutting also hold in this method.
- the cavity should be such as will conveniently receive the filament or yarn without on the one hand being so narrow that the filament or yarn when within it is restricted in its motion and onfthe other hand so wide that an excessive volume of air is required to produce the required entrainment force.
- the cavity should be of sufficient length in relation to the diameter or effective diameter of the filament or yarn, and in relation to the linear flow-rate of the fluid within the cavity so that the required force is exerted along the length of the filament or yarn.
- the disposal pipe may ⁇ be substantially linearly disposed with respect to the cavity or may be at an angle to it. The disposal pipe will normally communicate with a container for the waste filament or yarn.
- the jets of fluid referred to in the further aspect of our invention should be at an angle appreciably less than 90 to the long axis of the cavity.
- the jets of fiuid should preferably be at an angle less than 45 to the long axis, and may be substantially or actually in the direction of the axis of the cavity, so as to facilitate the generation of a fiuid flow along the length of the cavity.
- directed inwards and away from the slot we mean that the jets of fluid should not be directed through the slot away from the cavity.
- the severing of the filament or yarn is preferably effected by means of a severing device associated with the disposal device and operating as the entrainment device is proximated to the lament or yarn.
- a severing device associated with the disposal device and operating as the entrainment device is proximated to the lament or yarn.
- This may be of any convenient form. It may, for example, take the form of a fixed sharpened member or pair of sharpened members so designed and disposed as to catch and sever the filament or yarn immediately after it is entrained.
- the force required to effect the severing is supplied by the wind-up mechanism and the entrainment action serves only to direct the filament or threadline to the position effective for severing.
- An advantage of our invention is that by the use of it an operation involving the linear movement of a filament or yarn, for example from a melt-spinning spinneret to a wind-up device, may be interrupted and the yarn entrained to waste without reduction of the tension operative in the normal process below an acceptable level.
- This effect is produced in the use of our invention in view of the fact that an appreciable length of the filament or yarn is operated on by the flow of fluid generated Within the cavity of the device before the filament or yarn is severed.
- the level of tension which is acceptable can easily be determined by observing continuously the tension, for which purpose there are methods known, varying the tension until some criterion, is observed and noting the tension then pertaining.
- One such criterion is the formation of wraps on a feed roll, which occurs as the tension falls below a certain level controlled by coefficient of friction and feed-roll diameter.
- the fiuid may suitably be air in view of its cheapness, although any fluid which does not have an adverse effect on the filament or yarn may be used.
- suitable uids are water and steam; the latter may be dry or contain droplets of Water.
- FIGURE 1 shows an isometric View of an entrainment device.
- FIGURE 2 shows a cross-section of the entrainment device of FIGURE l through the plane indicated at 2 2.
- FIGURE 3 shows a side View of the entrainment device of FIGURE 1 from the side wherein a slot is formed and
- FIGURE 4 shows the entrainment device in proximity to a filament.
- a tube 5 of 4 mm. internal diameter is free at one end 6 and communicates at the other end with a flexible rubber pipe 7.
- a jacket 8 surrounds the tube 5 and extends from the free end 6 to a length of 13 cm.
- the jacket 8 is sealed except for an air entrance pipe 9 piercing the exterior wall of the jacket 8, and 32 circular apertures 14 of 0.5 mm. diameter.
- the apertures piercing the tube 5 are located in two rows of 16, equidistantly disposed in each row, a row being disposed along each edge of the slot 10 throughout its length.
- Each aperture 14 is so oriented that the air jet from it is directed away from the free end of the tube 5 and makes an angle of 10 with the plane passing through the centre line of the slot 10 and 20 with the axis of the tube 5.
- the slot 10 is formed in the tube 5 and jacket 8 extending for a distance of 13 cm. from the free end 6 of the tube 5.
- the width of the slot is 1.5 ymm.
- the entrainment device In order to effect the entrainment of the filament or yarn, the entrainment device is moved towards the filament or yarn 11 as shown in FIGURE 4 until a portion of the filament or yarn 11 is enclosed in a portion of the cavity formed by the tube 5 and in altering the attitude of the entrainment device in the direction of coincidence of the axis of the tube 5 with the filament or yarn 11, the latter is suddenly dragged into the slot 10 yby the flow of air passing through the slot 10, whereupon sufficient tension is exerted on the filament or yarn 11 by the filament or yarn wind-up mechanism to cause severing of the filament or yarn 11 by the knives 12, 13.
- the pull exerted on the filament or yarn by the entrainment device replaces that applied by the wind-up mechanism, so that the tension of the filament or yarn 11 does not at any stage in the action fall below a predetermined, acceptable level.
- a filament or yarn entrainment device consisting of a tube, the one end communicating with a disposal pipe for waste filament or yarn and the other end being free, a slot of substantially uniform width formed in the wall of said tube extending from the free end substantially the whole length of said tube and being disposed in a substantially parallel manner to the axis of the tube, said slot being of width substantially less than the inner perimeter of the said tube, the said tube bearing at least one aperture communicating with a supply of fluid at greater than .atmospheric pressure, said aperture being disposed adjacent to said slot and being so adapted and arranged that the fluid supplied to the said aperture produces streams of fiuid which are directed away from the free end of the tube, the jets emanating from the said aparture adjacent to the slot being furthermore directed inwards and away from the slot, there being attached to said device near the end of said slot communicating with the disposal pipe a cutting device so adapted and arranged that severing is effected of a yarn v5 or filament which passes through the said slot in the said tube
- a filament or yarn entrainment device wherein there is a yarn disposal pipe associated with the tube whereby the yarn or filament after severing is diverted to a waste container.
- a threadline entrainment device comprising means defining an elongated cavity open to the threadline through a slot extending longitudinally of said cavity; fluid jet means associated with said cavity and slot for suddenly moving the threadline through said slot so as to be fully enclosed by said cavity when said device is brought into proximity with the threadline and for simultaneously applying to the enclosed threadline a predetermined force in the direction of lengthwise motion of the threadline; means for severing the threadline substantially simultaneously with the movement of the threadline into said slot, said means including cutting device attached to said entrainment device in a location to be contacted by the threadline as the latter passes into said slot; and a disposal pipe communicating with said cavity for receiving the threadline after the latter has been severed.
- a filament or yarn entrainment device wherein there is further provided a check action preventing contact of the filament or yarn with the cutter until a predetermined force urging the threadline onto the cutter is attained.
- a filament or yarn entrainment device according to claim 3 wherein the stream of fluid is directed at an angle of less than 90 to the long axis of the cavity or tube.
- a filament or yarn entrainment device according to claim 3 wherein the stream of Huid is directed at an angle of less than 45 to the long axis of the cavity or tube.
Landscapes
- Treatment Of Fiber Materials (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB31247/65A GB1142786A (en) | 1965-07-22 | 1965-07-22 | Entrainment device for filament or yarn |
Publications (1)
Publication Number | Publication Date |
---|---|
US3452626A true US3452626A (en) | 1969-07-01 |
Family
ID=10320246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US567100A Expired - Lifetime US3452626A (en) | 1965-07-22 | 1966-07-22 | Device for entraining and cutting a moving threadline |
Country Status (4)
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3564958A (en) * | 1967-07-17 | 1971-02-23 | Leesona Corp | Yarn handling apparatus |
US3822539A (en) * | 1972-10-24 | 1974-07-09 | Ici Ltd | Threadable yarn treatment tube |
US3864998A (en) * | 1972-06-26 | 1975-02-11 | Rhone Poulenc Textile | Method for the cutting of a yarn travelling in a tube by means of a fluid |
US4073421A (en) * | 1974-04-22 | 1978-02-14 | Viscosuisse Sa | Apparatus for picking up rapidly running filaments |
US4080776A (en) * | 1975-10-04 | 1978-03-28 | Saurer-Allma Gmbh Allgauer Maschinenbau | Threading device for double twist thread twisting frames |
US6341549B2 (en) * | 1997-12-30 | 2002-01-29 | Samsung Electronic Co., Ltd. | Trimming apparatus having punches with air flow routes for removal of gate scraps |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE754526A (fr) * | 1969-08-07 | 1971-02-08 | Rhodiaceta | Procede et dispositif de transfert de fil textile progressant agrande vitesse |
FR2286780A2 (fr) * | 1974-10-01 | 1976-04-30 | Rhone Poulenc Textile | Dispositif de transfert de fils textiles progressant a grande vitesse |
AR205180A1 (es) * | 1973-12-13 | 1976-04-12 | Rhone Poulenc Textile | Perfeccionamientos en dispositivos neumaticos para transferencia y tratamiento de hilos textiles |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL68526C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | ||||
US2661588A (en) * | 1951-07-19 | 1953-12-08 | American Enka Corp | Thread collector |
US2667964A (en) * | 1949-04-21 | 1954-02-02 | Du Pont | Yarn handling device |
US2681729A (en) * | 1952-03-03 | 1954-06-22 | American Enka Corp | Removable air jet |
US2704430A (en) * | 1950-11-22 | 1955-03-22 | Pneumafil Corp | Control for the operation of roving frames |
US2955409A (en) * | 1957-10-25 | 1960-10-11 | Ici Ltd | Treatment of yarns |
US3241234A (en) * | 1964-03-10 | 1966-03-22 | Monsanto Co | Yarn aspirator with severing means |
US3285114A (en) * | 1965-06-21 | 1966-11-15 | Fiber Industries Inc | Doffing device with trigger actuated cutter means |
-
1965
- 1965-07-22 GB GB31247/65A patent/GB1142786A/en not_active Expired
-
1966
- 1966-07-22 NL NL6610332A patent/NL6610332A/xx unknown
- 1966-07-22 US US567100A patent/US3452626A/en not_active Expired - Lifetime
- 1966-07-22 FR FR70573A patent/FR1487627A/fr not_active Expired
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL68526C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | ||||
US2667964A (en) * | 1949-04-21 | 1954-02-02 | Du Pont | Yarn handling device |
US2704430A (en) * | 1950-11-22 | 1955-03-22 | Pneumafil Corp | Control for the operation of roving frames |
US2661588A (en) * | 1951-07-19 | 1953-12-08 | American Enka Corp | Thread collector |
US2681729A (en) * | 1952-03-03 | 1954-06-22 | American Enka Corp | Removable air jet |
US2955409A (en) * | 1957-10-25 | 1960-10-11 | Ici Ltd | Treatment of yarns |
US3241234A (en) * | 1964-03-10 | 1966-03-22 | Monsanto Co | Yarn aspirator with severing means |
US3285114A (en) * | 1965-06-21 | 1966-11-15 | Fiber Industries Inc | Doffing device with trigger actuated cutter means |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3564958A (en) * | 1967-07-17 | 1971-02-23 | Leesona Corp | Yarn handling apparatus |
US3864998A (en) * | 1972-06-26 | 1975-02-11 | Rhone Poulenc Textile | Method for the cutting of a yarn travelling in a tube by means of a fluid |
US3822539A (en) * | 1972-10-24 | 1974-07-09 | Ici Ltd | Threadable yarn treatment tube |
US4073421A (en) * | 1974-04-22 | 1978-02-14 | Viscosuisse Sa | Apparatus for picking up rapidly running filaments |
US4080776A (en) * | 1975-10-04 | 1978-03-28 | Saurer-Allma Gmbh Allgauer Maschinenbau | Threading device for double twist thread twisting frames |
US6341549B2 (en) * | 1997-12-30 | 2002-01-29 | Samsung Electronic Co., Ltd. | Trimming apparatus having punches with air flow routes for removal of gate scraps |
Also Published As
Publication number | Publication date |
---|---|
FR1487627A (fr) | 1967-07-07 |
GB1142786A (en) | 1969-02-12 |
NL6610332A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1967-01-23 |
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