US3501806A - Apparatus for spinning artificial threads - Google Patents

Apparatus for spinning artificial threads Download PDF

Info

Publication number
US3501806A
US3501806A US546038A US3501806DA US3501806A US 3501806 A US3501806 A US 3501806A US 546038 A US546038 A US 546038A US 3501806D A US3501806D A US 3501806DA US 3501806 A US3501806 A US 3501806A
Authority
US
United States
Prior art keywords
spinning
filter
blocking
composition
lines
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
Application number
US546038A
Other languages
English (en)
Inventor
Hansgeorg Schrader
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.)
MARMAG BARMER MAS FAB AG
Original Assignee
MARMAG BARMER MAS FAB 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 MARMAG BARMER MAS FAB AG filed Critical MARMAG BARMER MAS FAB AG
Application granted granted Critical
Publication of US3501806A publication Critical patent/US3501806A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/691—Arrangements for replacing filters, e.g. with two parallel filters for alternate use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/96—Safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Definitions

  • Double means for blocking the passage of the composition to the spinning head is provided in each of the lines.
  • One blocking means is placed before and one after the filter.
  • Closable passage means is also provided allowing the spinning composition to be passed from the filter to the atmosphere in order to check the effectiveness of a newly installed filter.
  • the apparatus insures the continuity of the spinning process and insure that air inclusions, bubble formation, and the like, will not take place during the filter changing step.
  • the present invention relates in general to apparatus for spinning threads from viscous spinning compositions. More particularly, the invention is directed to apparatus wherein the spinning composition is conducted alternately in one of several parallel lines or line sections having therein a changeable filter insert to the spinning nozzle and wherein a blocking device is provided associated with each filter insert.
  • Another known device provides two candle filters standing opposite one another, of which the one is in active position and which, when the latter is fouled, are swung in common in such a way about a vertically standing and fixedly positioned cock plug that the other, clean filter moves into the active position, the fouled one automatically moving into a position in which, for the purpose of cleaning, it is subjected to a flushing back through purified spinning composition.
  • the present invention therefore, has as its principal objective providing apparatus which insures the continuity of the spinning process during the filter change while not jeopardizing the thread by air inclusions, bubble formation, and the like during the filter changing operation.
  • the spinning composition in the line change, first of all be conducted into the new line with a clean filter insert in each case while it continues to flow in the original line; then it is run off from the new line through an exit opening lying in each case before the last blocking device into the open until possible air or residue inclusions have passed off, and, finally, after opening of this block as well as after closing of the first block (obstacle) of the original line it is conducted solely through the new line.
  • the advantage of this changing method lies in the fact that the filter change can be carried out at any time during the continuous spinning operation without fear of a breaking off of the threads.
  • the spinning composition at first in each case emerges into the open, it is possible to test the quality of the filtrate. It is possible, therefore, to be assured of the effectiveness of the clean filter before the path is freed for the spinning composition to travel to the spinning nozzle, so that it is made certain that only faultless filtered composition arrives at the nozzle.
  • An effective packing is achieved, in a further embodiment of the invention, by providing hollow spaces in the blocking devices that are arranged to receive very nearly incompressible liquid or plastic materials. These materials are placed under pressure with the aid of suitable means, for example, by screws, which close the filling aperture of the hollow spaces, in such a way that they bring about an expansion of the wall material of the blocking members in its elastic range. In this manner the outside surfaces of the blocking member. are pressed against the inside walls of the lines to produce a perfect seal.
  • the temperature of the compositions conveyed in the lines is important in determining their flow characterlstlcs in passing through the filter devices. It is therefore further proposed that the lines be arranged so as to be heatable individually or in common in the zone of the blocking members and emergence apertures.
  • FIG. 1 shows a section through the longitudinal axis of the spinning composition line in region of the parallel conduit sections of the filter block
  • FIG. 2 shows the section IIII according to FIG. 1, perpendicular to the central axis of the line.
  • the main line 1, of square or rectangular cross section, coming from the supply tank, is divided in the example shown into two partial passages at point 2, likewise of rectangular cross section, of which the one 3, 4- according to FIG. 1 is open and the other 3', 4' is closed by means of blocking slides 5 and 6.
  • the blocking members 5 and 6 there are arranged hollow spaces 7 and 8, which are filled, each over a threaded bore (not represented) with a liquid or plastic material and are closable by means of a screw (likewise not represented), which then, in turn, exerts such a high pressure on the material enclosed in the corresponding hollow space 7 or 8 that the blocking member, by reason of the elasticity of its wall material is pressed, with sealing effect on all sides, against the inside walls of the passage 3', 4'.
  • both lines 3, 4 and 3', 4' include in the zone of the filter insets 9 and 10 an outlet aperture 12. and 12', which, according to FIG. 2 is closable by the pin 13 of the screw 15 shiftable in the filter block 14.
  • the off-flow tube 16 establishes the connection between the outlet opening 12 and the outer air.
  • the side plates 17 and 18 fastened by means of a rapid-closing device, which simultaneously carry the heating bands 19 and 20.
  • the liquid enclosed in the hollow space 7 is again placed under pressure in order to seal the contact gaps between the blocking slide 5 and block 14 in the upper passage wall 3.
  • the spinning composition forcing its way along under the blocking slide 5 pushes the air that has forced its way in ahead of it, which then mixes in part with the spinning composition and forms undesired air bubbles.
  • the spin- 4 ning composition permeated in this manner with air now flows through the sieve holes 11 of the filter device 10 and over the outlet aperture 12' represented in dot-and-dash lines, from which the pin (plug) 13 has been removed by turning screw 15, through the outlet tube 16 into the open.
  • Both the blocking members used for the blocking of line section 3, 4 likewise have hollow spaces filled with a liquid or plastic medium, which spaces are placed under pressure for the sure sealing of line 3, 4.
  • the side plates 17 and 18 removed at the beginning of the changing process, with their heating bands 19 and 20, are again mounted on the block.
  • Apparatus for carrying viscous spinning composition which comprises: at least two parallel lines leading to the spinning nozzle; a changeable filter insert in each of said lines; blocking means associated with each of said lines for preventing the flow of spinning composition through each of said lines, said blocking means including a blocking member located before said filter in each of said lines and a blocking member located after said filter in each of said lines; and a closable outlet associated with each of said lines and located between said blocking members and after said filter for carrying 011 contaminated spinning composition.
  • Apparatus according to claim 1 which includes heating means for the lines arranged in the zone of the block ing members and outlet aperture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US546038A 1965-05-05 1966-04-28 Apparatus for spinning artificial threads Expired - Lifetime US3501806A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0081751 1965-05-05

Publications (1)

Publication Number Publication Date
US3501806A true US3501806A (en) 1970-03-24

Family

ID=6981227

Family Applications (1)

Application Number Title Priority Date Filing Date
US546038A Expired - Lifetime US3501806A (en) 1965-05-05 1966-04-28 Apparatus for spinning artificial threads

Country Status (4)

Country Link
US (1) US3501806A (es)
BE (1) BE680059A (es)
GB (1) GB1135376A (es)
NL (1) NL6605754A (es)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953808A (en) * 1975-04-28 1976-04-27 Bell Telephone Laboratories, Incorporated Solid state amplifier
US4108588A (en) * 1974-09-14 1978-08-22 C.F. Scheer & Cie. Apparatus for processing molten liquid plastics, particularly for extrusion of plastics
US4416605A (en) * 1981-05-07 1983-11-22 Kabushiki Kaisha Kobe Seiko Sho Screen/diverter changing mechanism for extruders
US4814186A (en) * 1988-02-29 1989-03-21 Beringer Co., Inc. Polymer filtration apparatus
US5417866A (en) * 1993-07-02 1995-05-23 Extek, Inc. Continuous flow polymer filtration apparatus and process
US5578206A (en) * 1993-12-27 1996-11-26 The Japan Steel Works, Ltd. Screen pack replacing apparatus
EP1125713A2 (en) * 1994-07-01 2001-08-22 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.) Filter member and screen changer for use in resin extruder
US20120294971A1 (en) * 2009-12-18 2012-11-22 Tyler Dean Simpson High pressure relief assembly and assembly locking device for use with extruders
CN106378917A (zh) * 2016-05-26 2017-02-08 苏州龙杰特种纤维股份有限公司 一种高分子材料熔体管多工位清洗装置及清洗方法
CN109019935A (zh) * 2018-09-29 2018-12-18 绿之韵生物工程集团有限公司 一种自动反冲式饮水机
US20220355531A1 (en) * 2018-05-07 2022-11-10 PSI-Polymer Systems, Inc. Filtration apparatuses and screen changer devices for polymer processing and related methods

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108103591B (zh) * 2018-02-07 2023-06-20 苏州金泉新材料股份有限公司 纺丝熔体过滤装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2184177A (en) * 1930-10-23 1939-12-19 Benjamin S Burrell Strainer apparatus
US3007199A (en) * 1959-01-20 1961-11-07 Albert Andy Extruding head filter
US3033256A (en) * 1960-08-17 1962-05-08 Dow Chemical Co Screen changer for extruders
US3059276A (en) * 1960-12-05 1962-10-23 Sterling Extruder Corp Extrusion apparatus
CA684976A (en) * 1964-04-21 H. Rossiter Paul Straining head for an extruder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA684976A (en) * 1964-04-21 H. Rossiter Paul Straining head for an extruder
US2184177A (en) * 1930-10-23 1939-12-19 Benjamin S Burrell Strainer apparatus
US3007199A (en) * 1959-01-20 1961-11-07 Albert Andy Extruding head filter
US3033256A (en) * 1960-08-17 1962-05-08 Dow Chemical Co Screen changer for extruders
US3059276A (en) * 1960-12-05 1962-10-23 Sterling Extruder Corp Extrusion apparatus

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108588A (en) * 1974-09-14 1978-08-22 C.F. Scheer & Cie. Apparatus for processing molten liquid plastics, particularly for extrusion of plastics
US3953808A (en) * 1975-04-28 1976-04-27 Bell Telephone Laboratories, Incorporated Solid state amplifier
US4416605A (en) * 1981-05-07 1983-11-22 Kabushiki Kaisha Kobe Seiko Sho Screen/diverter changing mechanism for extruders
US4814186A (en) * 1988-02-29 1989-03-21 Beringer Co., Inc. Polymer filtration apparatus
US5417866A (en) * 1993-07-02 1995-05-23 Extek, Inc. Continuous flow polymer filtration apparatus and process
US5578206A (en) * 1993-12-27 1996-11-26 The Japan Steel Works, Ltd. Screen pack replacing apparatus
EP1125713A2 (en) * 1994-07-01 2001-08-22 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.) Filter member and screen changer for use in resin extruder
EP1125713A3 (en) * 1994-07-01 2001-11-21 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.) Filter member and screen changer for use in resin extruder
USRE37681E1 (en) 1994-07-01 2002-04-30 Kabushiki Kaisha Kobe Seiko Sho Filter member and screen changer for use in resin extruder
US20120294971A1 (en) * 2009-12-18 2012-11-22 Tyler Dean Simpson High pressure relief assembly and assembly locking device for use with extruders
US8794949B2 (en) * 2009-12-18 2014-08-05 Nestec Sa High pressure relief assembly and assembly locking device for use with extruders
CN106378917A (zh) * 2016-05-26 2017-02-08 苏州龙杰特种纤维股份有限公司 一种高分子材料熔体管多工位清洗装置及清洗方法
US20220355531A1 (en) * 2018-05-07 2022-11-10 PSI-Polymer Systems, Inc. Filtration apparatuses and screen changer devices for polymer processing and related methods
CN109019935A (zh) * 2018-09-29 2018-12-18 绿之韵生物工程集团有限公司 一种自动反冲式饮水机

Also Published As

Publication number Publication date
GB1135376A (en) 1968-12-04
DE1660199A1 (de) 1970-12-17
BE680059A (es) 1966-10-03
DE1660199B2 (es) 1973-12-06
NL6605754A (es) 1966-11-07

Similar Documents

Publication Publication Date Title
US3501806A (en) Apparatus for spinning artificial threads
US4701118A (en) Apparatus for filtering plasticized materials in extruders
US3455357A (en) Screen changer apparatus for extrusion machines
US2838084A (en) Screen changing method for conduits and tubes for conveying fluids and for extrusionmachines
US3613999A (en) Apparatus for jetting liquid onto fibrous material
US1955903A (en) Oil purifying apparatus
ATE112712T1 (de) Siebvorrichtung zur reinigung von kunststoffschmelzen.
EP1992465B1 (de) Sprühkopf
US3243849A (en) Screen changing
DE1436287A1 (de) Verfahren zum Filtern eines Fluids und Anlage zur Durchfuehrung des Verfahrens
US1784103A (en) Exchangeable filter, more particularly for artificial-silk-spinning machines
US3598238A (en) Apparatus for cleaning analyzer and other filters
US3727767A (en) Double filter unit
US4547339A (en) Method of sterilizing a filling machine apparatus
US4107037A (en) Method and apparatus for automatic control of filtrate quality
US3935109A (en) Straining apparatus
US2449902A (en) Filtration
DE3817473C1 (es)
US3072136A (en) Valve for filter
DE2525294A1 (de) Vorrichtung zum mischen von schnell miteinander reagierenden fluessigen komponenten
EP0775081B1 (de) Vorrichtung und verfahren zur äusseren reinigung von behältern
US528652A (en) Filtering apparatus
US4340552A (en) Melt spinning solution dyed filaments and improved spin pack therefor
EP0673837A1 (de) Einrichtung zum sterilen Befüllen von Behältnissen
US455574A (en) District