GB953942A - Melt spinning apparatus for the production of filaments - Google Patents
Melt spinning apparatus for the production of filamentsInfo
- Publication number
- GB953942A GB953942A GB3951/62A GB395162A GB953942A GB 953942 A GB953942 A GB 953942A GB 3951/62 A GB3951/62 A GB 3951/62A GB 395162 A GB395162 A GB 395162A GB 953942 A GB953942 A GB 953942A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- spinning
- resistor
- denier
- transistor
- 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
Links
- 238000002074 melt spinning Methods 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000009987 spinning Methods 0.000 abstract 9
- 238000001125 extrusion Methods 0.000 abstract 4
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 239000000155 melt Substances 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 abstract 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/36—Textiles
- G01N33/365—Filiform textiles, e.g. yarns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
- B65H63/062—Electronic slub detector
- B65H63/065—Electronic slub detector using photo-electric sensing means, i.e. the defect signal is a variation of light energy
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
- D01D1/09—Control of pressure, temperature or feeding rate
-
- 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
- B65H2701/313—Synthetic polymer threads
- B65H2701/3132—Synthetic polymer threads extruded from spinnerets
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Quality & Reliability (AREA)
- Mechanical Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
953,942. Melt-spinning apparatus, MONSANTO CHEMICAL CO. Feb. 1, 1962 [Feb. 13, 1961], No. 3951/62. Heading B5B. A melt-spinning apparatus for the production of filaments of a thermoplastic filamentforming polymer comprises a spinneret for shaping the molten polymer into streams 14 in a path extending downwardly from a spinning head 11 along a vertical extrusion line through a spinning chimney 12 at a predetermined extrusion rate, while a stream of air from a manifold 17 communicating with an air source 18 is directed laterally across the spinning chimney to cool and completely solidify the filaments 14. These filaments then pass between guide pins 19 and are taken up at a predetermined constant speed by known collecting means. If the pressure of the melt in the spinning head 11 is at the proper value, the spinning melt will be extruded at a sufficiently high speed to provide enough slack in the filaments 14 to allow the air stream to deflect the filaments from a straight vertical path, as shown in the drawing. If, however, the spinning head pressure falls, the rate of extrusion of the melt will decrease and cause the take up mechanism to pull the filaments on to a straight path and into alignment with a pair of slits 22 and 23 in the spinning chimney. Because of the constant speed take-up and the decreased extrusion rate, the denier of the filaments 14 will be decreased. Thus a decrease in denier is accompanied by a movement of the filaments from the deflected or arcuate path to a straight path. A light source 26 positioned adjacent to the slit 22 directs a light beam laterally across the spinning chimney, through tho slit 23 and on to a photo-sensitive impedance 27, the value of which varies as a function of the intensity of the light beam, and which is coupled with an output means arranged to actuate an alarm or control device whereby the denier of the filaments is continuously monitored and an alarm or control signal generated whenever the denier of the filaments falls below a predetermined value. The element 27 may be a sensitive cadmium sulphide resistor of known type which varies in resistance in response to variations in the intensity of the light beam. As shown, the resistor 27 is connected between terminals 28 and 29 in series with a 2000 ohm potentiometer 33 and a 51K resistor 34, all three of these elements being connected in parallel with a series connected 100 ohm resistor 37 and a transistor 38 connected between the terminals 28 and 29. The base of the transistor 38 is connected to the tap of the potentiometer 33. while the transistor emitter is connected to the 100 ohm resistor 37. The collector of the transistor is connected through a normally closed, manually operated switch 41 to the terminal 29. A battery 42 is connected in series with a relay 43 between the terminals 28 and 29 for applying power to the circuit. The relay 43 is provided with a contactor 46 which is closable to connect an alarm lamp 47 to a battery 48 when the relay is pulled in, the relay 43 pulling in at 2.4 ma. and dropping out at 2.2 ma. When the filaments follow a normal arcuate path the intense light beam holds the resistance of the resistor 27 to a low value and the transistor will not be conductive. If the denier of the filaments 14 falls below a predetermined value and they assume a straight path and thereby partially block off the light from the source 26, the resistance of the resistor will increase and the transistor 38 will become conductive. This allows more than 2.4 ma. to flow through the relay 43, thereby closing the circuit of the alarm lamp 47 and indicates to the operator that the denier of the filaments is too low. The closing of the contactor 46 may be used to operate a control device, for example a device automatically stopping the spinning operation. The resistor 27 is so sensitive that the movement of a single 3 denier filament into the light beam will cause the transistor to become conductive.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US88952A US3142831A (en) | 1961-02-13 | 1961-02-13 | Monitoring and detection circuits for spun filaments |
Publications (1)
Publication Number | Publication Date |
---|---|
GB953942A true GB953942A (en) | 1964-04-02 |
Family
ID=22214469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3951/62A Expired GB953942A (en) | 1961-02-13 | 1962-02-01 | Melt spinning apparatus for the production of filaments |
Country Status (5)
Country | Link |
---|---|
US (1) | US3142831A (en) |
CH (1) | CH378070A (en) |
DK (1) | DK105354C (en) |
GB (1) | GB953942A (en) |
NL (1) | NL274686A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3761210A (en) * | 1971-07-09 | 1973-09-25 | Carborundum Co | Apparatus for producing fibers |
US4738866A (en) * | 1987-03-20 | 1988-04-19 | Burlington Industries, Inc. | Apparatus and method for determining whether an adequate amount of sizing has been applied to yarn ends |
KR100248247B1 (en) * | 1992-04-09 | 2000-04-01 | 테라다 토키오 | The mowoo yarn repair device of the warping machine |
WO2007003377A1 (en) * | 2005-07-05 | 2007-01-11 | Oerlikon Textile Gmbh & Co. Kg | Device for producing a spun-bonded non-woven |
DE102013108308A1 (en) * | 2013-08-01 | 2015-02-19 | Schott Ag | Method and device for detecting tape rolls made of brittle-hard or brittle-breaking, at least partially transparent material, and their use |
CN105803551A (en) * | 2014-12-31 | 2016-07-27 | 大连华阳新材料科技股份有限公司 | Static gun silk separating device for tubular drafting |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE692726C (en) * | 1937-06-10 | 1940-06-26 | Ernst Gessner Akt Ges | Length measuring machine for fabric webs |
US2233483A (en) * | 1938-07-28 | 1941-03-04 | Photoswitch Inc | Supervising filamentary material |
NL53431C (en) * | 1938-08-09 | |||
US2323128A (en) * | 1941-09-10 | 1943-06-29 | Texas Co | Method and apparatus for determining liquid level |
US2682144A (en) * | 1947-03-18 | 1954-06-29 | Deering Milliken Res Trust | Control method and means |
DE917296C (en) * | 1951-11-25 | 1954-08-30 | Heinrich Von Den Benken | Electro-pneumatic stopping device for textile machines, especially wing spinning machines |
US2922188A (en) * | 1957-02-20 | 1960-01-26 | Industrial Nucleonics Corp | Control for extrusion apparatus |
US2982994A (en) * | 1958-10-15 | 1961-05-09 | Du Pont | Process and apparatus for quenching and steam-conditioning yarn |
US2979628A (en) * | 1959-02-09 | 1961-04-11 | Heat Timer Corp | Photo-electric monitor for pointer indicating instruments |
US2979766A (en) * | 1960-02-23 | 1961-04-18 | Chemstrand Corp | Melt-spinning apparatus |
-
0
- NL NL274686D patent/NL274686A/xx unknown
-
1961
- 1961-02-13 US US88952A patent/US3142831A/en not_active Expired - Lifetime
-
1962
- 1962-02-01 GB GB3951/62A patent/GB953942A/en not_active Expired
- 1962-02-08 CH CH154162A patent/CH378070A/en unknown
- 1962-02-10 DK DK64162AA patent/DK105354C/en active
Also Published As
Publication number | Publication date |
---|---|
CH378070A (en) | 1964-05-31 |
US3142831A (en) | 1964-07-28 |
NL274686A (en) | |
DK105354C (en) | 1966-09-19 |
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