USRE34711E - Device for feeding an extrusion head for plastic material - Google Patents

Device for feeding an extrusion head for plastic material Download PDF

Info

Publication number
USRE34711E
USRE34711E US07/699,447 US69944791A USRE34711E US RE34711 E USRE34711 E US RE34711E US 69944791 A US69944791 A US 69944791A US RE34711 E USRE34711 E US RE34711E
Authority
US
United States
Prior art keywords
auxiliary
flow
elongated element
extruder
main
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
US07/699,447
Other languages
English (en)
Inventor
Michel F. Compagnon
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.)
Maillefer SA
Original Assignee
Maillefer SA
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 Maillefer SA filed Critical Maillefer SA
Priority to US07/699,447 priority Critical patent/USRE34711E/en
Application granted granted Critical
Publication of USRE34711E publication Critical patent/USRE34711E/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B29C48/74—Bypassing means, i.e. part of the molten material being diverted into downstream stages of the extruder
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles
    • 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
    • B29C48/255—Flow control means, e.g. valves
    • B29C48/2556—Flow control means, e.g. valves provided in or in the proximity of dies
    • 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
    • B29C48/269—Extrusion in non-steady condition, e.g. start-up or shut-down
    • B29C48/2692—Material change
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
    • 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
    • B29C48/06—Rod-shaped
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
    • B29C48/175—Articles comprising two or more components, e.g. co-extruded layers the components having different colours comprising a multi-coloured single component, e.g. striated, marbled or wood-like patterned
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces

Definitions

  • the subject of the present invention is a device for feeding an extrusion head for plastic material.
  • Devices of this kind are used especially for fabricating by extrusion elongated products of plastic material presenting a colored surface layer.
  • An additional extruder is used, which deposits a colored surface skin around the extruded shape.
  • the second method has the advantage of saving on the coloring agents since only a thin layer of the extruded product is colored.
  • the object of the present invention is to improve the feed devices already known, in order to apply the second method described above by achieving an instantaneous change of color without waste of material.
  • the device according to the invention is characterized in that is comprises a main extruder connected to a main die and a feed means associated with the main die and capable of being selectively controlled so as to cover the exit flow of the main die with a surface layer formed of successive segments, the appearance of which differs.
  • FIG. 1 is a schematic top plan view showing an extrusion installation equipped with the device according to the invention
  • FIG. 2 is a sectional view on a horizontal plane showing on a larger scale the extrusion head and its different feed orifices,
  • FIG. 3 is a sectional view along the line III--III of FIG. 2, and
  • FIG. 4 is a perspective view, partially cut away, of a length of a section of plastic material fabricated by the device of FIGS. 1 to 3.
  • the installation depicted in FIG. 1 is intended for the continuous production of a section of plastic material, for example, a bar, or a tube, the cross-section of which may have any shape. It comprises a main extruder 1 provided with a feed hopper 2 and driven by a motor 3 having a reduction gear 4. Mounted at the end of the cylinder of this extruder 1 is an extrusion head 5, the details of which are visible in FIG. 2. On the other hand, this extrusion head 5 is connected to an auxiliary twinscrew .[.extruded.]. .Iadd.extruder .Iaddend.6 provided at its rearward end with two feed hoppers 7 and 8. As is seen in FIG.
  • the auxiliary extruder 6 comprises two parallel cylindrical bores 9 and 10, in each of which a screw 11 or 12 rotates. These screws are driven by a single speed-reduction gear 13 from a single motor 14, ensuring that the two screws constantly rotate at the same speed. As the dimensions of the screws are the same, the flows of plastic material formed in the two cylinders 9 and 10 are of the same rate and reach the exit orifices 15 and 16 of the extruder 6 in the same state of fluidity and compression.
  • FIG. 2 further shows the structure of the extrusion head 5.
  • a main die 18 mounted in the cylindrical die body 17 are a main die 18, supported by a die holder 19 and, in front of the die body 17, an auxiliary die 20 supported by a die holder 21 and fixed by a nut 22, the die holder being itself secured to the body 17 by a nut 23.
  • the die 18 is fed at the rear of the extrusion head through the die holder 19 in a conventional manner.
  • a direct connection of the die holder to the outlet of the cylinder of the extruder 1 is provided for.
  • the auxiliary extruder 6 is connected to the extrusion head 5 by ducts which form two paths, these pass through a multiple-way valve 24, the body 25 of which is fixed to the end of the body of the extruder 6 in such a way as to be able to feed the head 5 laterally.
  • the multiple-way valve 24 comprises a cylindrical valve needle 26. At one end, this valve needle is provided with a prolongation of square cross-section (FIG. 3) permitting it to be rotated about its axis through an angle of 120° in order to effect the conversion of the colors, as will be seen below.
  • One of the two inlets 27 and 28 made in the body 25 ends facing a radial bore 29 passing through the valve needle 26 up to its axis, and the other facing a groove 30 which extends over 120° along the circumference of the valve needle 26.
  • the groove 30 causes the inlet 28 to communicate with an outlet 31 which ends, through the die body 17, in the outside surface of the die holder 21 and thence, via a distribution duct 44, feeds the conical space comprised between the dies 20 and 18.
  • the plastic material forced back by the screw 12 forms a tubular film on the surface of the elongated product which is shaped in the die 18 with the material supplied by the main extruder. While the valve 24 is in the position of FIG.
  • the material forced back by the screw 11 passes through the orifice 15 and into the duct 27. It arrives, as is seen in FIG. 3, through an axial duct 32 of the valve needle 26, in an outlet duct 33 which is connected to a helical channel 34 made in the body 17 in such a way as to encircle the die 18 and, via the groove 37, the receptacle 35, and a radial duct 36, to arrive in the inlet orifice 42 of the main die 18.
  • This material is therefore mixed with the material supplied by the main extruder, and as a result of its being projected in the form of a jet into the receptacle 35 from the groove 37, a rather rapid mixture of these two materials takes place.
  • the functions of the two auxiliary extruder screws 11 and 12 may be reversed by rotating the valve needle 26 about its axis clockwise, as viewed in FIG. 2 through an angle of 120°.
  • the inlet duct 27 is then connected directly to the outlet duct 31, while the inlet duct 28 is connected via the radial bore 29 and the axial channel 32 to the duct 33, to the helical channel 34, and to the groove 37.
  • FIG. 4 depicts in cut-away perspective a length of section, for example, a cylindrical rod of plastic material, fabricated with the device described.
  • each of the hoppers 7 and 8 of the auxiliary extruder 6 is provided with a volumetric metering apparatus 45, 46, permitting a certain quantity of coloring agent to be inserted in this hopper, with the plastic material which feeds it, the two colorant distributors containing materials of different colors, for example, red and blue. It is therefore seen that if the valve needle 26 is in the position of FIG. 2, and if the cylinder 10 is fed by a plastic material provided with a batch of red colorant, the front portion .[.3a.].
  • the cylindrical section produced by the installation will be provided with a red surface film 39.
  • the installation will permit changing the coloring of the surface film 39 in the following segment 38b by a simple manipulation of the valve 24. It will be necessary beforehand to start up the colorant-metering apparatus 45 of the cylinder 9 in order that the hitherto virgin plastic material which is led into the receptacle 35 via the ducts 29, 32, and 33 starts to be colored blue, as depicted at 40 in FIG. 4. At the moment when the desired red length of the elongated section has been produced, it will suffice to switch over the valve 24.
  • the blue material supplied in the inlet duct 27 will be directed toward the auxiliary die 20 and will give the surface film 39 a blue coloring, which will appear on the section, forming the segment 39b.
  • the mass of red plastic material which the screw 12 forces into the duct 28 will then be led via the by-pass 34 into the receptacle 35 and will form a colored zone 41 in the thickness of the section.
  • the introduction of the coloring agent into the hopper 8 by the metering apparatus 46 can be stopped, so that the cylinder 10 will then carry virgin plastic material, similar to that which enters the die 18 through the orifice 42 from the main extruder 1.
  • the system described lends itself to the production of any section of plastic material produced continuously. It applies, for example, to the production of tubes, but equally to the production of insulating layers covering an electric conductor, to the production of sheaths on cables, etc.
  • the device permits, for example, producing a certain length X km of elongated section covered with a surface layer of one color during a given time, changing the visible color instantly, and producing a length Y km of the same product covered with a surface layer of another color.
  • the extruder continuously works virgin material.
  • One of the two cylinders of the auxiliary extruder continuously works on the virgin material, the other on the colored material. The passing from one color to the other is achieved by starting up the metering apparatus containing the coloring agent having the required color, then, at the required moment, by manipulating the valve 24.
  • the starting up of the volumetric metering apparatus can be achieved automatically by electronic means, such as a preset counter.
  • electronic means such as a preset counter.
  • the colors may be alternated, or sections successively having lengths of several different colors may be produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
US07/699,447 1986-03-06 1987-03-05 Device for feeding an extrusion head for plastic material Expired - Lifetime USRE34711E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US07/699,447 USRE34711E (en) 1986-03-06 1987-03-05 Device for feeding an extrusion head for plastic material

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH928/86 1986-03-06
CH928/86A CH678507A5 (fi) 1986-03-06 1986-03-06
US07/699,447 USRE34711E (en) 1986-03-06 1987-03-05 Device for feeding an extrusion head for plastic material
US07/124,994 US4832960A (en) 1986-03-06 1987-03-05 Device for feeding an extrusion head for plastic material
PCT/CH1987/000026 WO1987005258A1 (fr) 1986-03-06 1987-03-05 Dispositif d'alimentation d'une tete d'extrusion de matiere plastique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US07/124,994 Reissue US4832960A (en) 1986-03-06 1987-03-05 Device for feeding an extrusion head for plastic material

Publications (1)

Publication Number Publication Date
USRE34711E true USRE34711E (en) 1994-08-30

Family

ID=4198434

Family Applications (2)

Application Number Title Priority Date Filing Date
US07/699,447 Expired - Lifetime USRE34711E (en) 1986-03-06 1987-03-05 Device for feeding an extrusion head for plastic material
US07/124,994 Ceased US4832960A (en) 1986-03-06 1987-03-05 Device for feeding an extrusion head for plastic material

Family Applications After (1)

Application Number Title Priority Date Filing Date
US07/124,994 Ceased US4832960A (en) 1986-03-06 1987-03-05 Device for feeding an extrusion head for plastic material

Country Status (6)

Country Link
US (2) USRE34711E (fi)
EP (1) EP0259389B1 (fi)
JP (1) JPH07338B2 (fi)
CH (1) CH678507A5 (fi)
FI (1) FI85351C (fi)
WO (1) WO1987005258A1 (fi)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5773037A (en) * 1995-11-10 1998-06-30 Nokia-Maillefer Holding Sa Extrusion head with color-changing device
US6626206B1 (en) 2000-01-20 2003-09-30 Extrusion Dies, Inc. Feedblock for adjusting the dimensions of a set of co-extruded layers of a multi-layer sheet
US20100247746A1 (en) * 2006-04-21 2010-09-30 Southwire Company Method and Apparatus for Multi-Stream Metered Extrusion

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8601883A (nl) * 1986-07-21 1988-02-16 Stamicarbon Werkwijze en inrichting voor het door spuitgieten vervaardigen van een uit een aantal lagen van verschillende materialen bestaand voorwerp.
AT387672B (de) * 1987-08-12 1989-02-27 Rosendahl Masch Gmbh Einrichtung zum umspritzen einer seele, insbesondere eines elektrischen leiters
US5562875A (en) * 1988-06-17 1996-10-08 Gencorp Inc. Handling system and method for curved extrusions
US4906171A (en) * 1988-06-17 1990-03-06 Gencorp Inc. Directed flow die assembly
US5069853A (en) * 1988-06-17 1991-12-03 Gencorp Inc. Method of configuring extrudate flowing from an extruder die assembly
US5067885A (en) * 1988-06-17 1991-11-26 Gencorp Inc. Rapid change die assembly
US5102323A (en) * 1988-08-31 1992-04-07 American National Can Company Plastic resin multi-layer co-extrusion extruder with multi-port plug for selecting order of layers
US4976599A (en) * 1989-06-01 1990-12-11 Davis Electric Wallingford Corporation Apparatus for extruding a sheath of synthetic material around a conductor and for changing the color of same
AT393570B (de) * 1990-01-30 1991-11-11 Unitek Maschnb & Handel Gmbh Vorrichtung zum wechsel von extrudierbaren farbkennungen
US5219588A (en) * 1990-02-12 1993-06-15 Gencorp Inc. Die assembly control
CH678611A5 (fi) * 1990-04-03 1991-10-15 Maillefer Nokia Holding
US5411692A (en) * 1994-04-11 1995-05-02 Reynolds Consumer Products Inc. Integral reclosable bag die assembly
AT989U1 (de) * 1995-10-13 1996-08-26 Unitek Maschnb & Handel Gmbh Spritzkopfanordnung
AT408204B (de) * 1996-06-27 2001-09-25 Unitek Maschb Und Handelsgesel Spritzkopfanordnung zur herstellung einer mehrlagigen ummantelung eines elektrischen oder optischen leiters
DE19646394C1 (de) * 1996-11-07 1998-04-30 Roehm Gmbh Extrusionsanlage und Verfahren zur Extrusion mit minimierten Farbwechselzeiten
ATE337084T1 (de) 2000-10-17 2006-09-15 Sika Technology Ag Statikmischer und verfahren zum vermischen einer hauptkomponente mit einer zusatzkomponente
CN1251854C (zh) * 2003-01-10 2006-04-19 曼夫瑞德·A·A·鲁波克 一种用于模制塑料管的装置
US20050184415A1 (en) * 2004-02-06 2005-08-25 Masaki Ohashi Method for producing extruded products
JP2006325691A (ja) * 2005-05-24 2006-12-07 Pentax Corp 可撓性内視鏡の挿入部とその製造方法
US20060275523A1 (en) * 2005-06-02 2006-12-07 Domenico Marzano Distribution block for blown-film extrusion die
US8177542B2 (en) * 2005-08-22 2012-05-15 Reading Bakery Systems Rotating nozzle die machine for extrusion of two or more types of dough
SI2621619T1 (sl) * 2010-09-30 2015-06-30 Equipolymers Gmbh Postopek mešanja
JP5841610B2 (ja) * 2010-12-13 2016-01-13 ギマク・ディ・マッキャグナン・ジョルジオ 特にプラスチック材料のための押出成形装置
ITBO20120567A1 (it) 2012-10-17 2014-04-18 Samp Spa Con Unico Socio Apparecchiatura per la produzione di un filo provvisto di almeno uno strato di materiale plastico di ricoprimento
CN108407255B (zh) * 2018-04-12 2024-03-01 国材(苏州)新材料科技有限公司 一种螺杆挤出机的喂料调节器
CN113927869B (zh) * 2021-10-11 2024-06-11 深芏(中山)科技实业有限公司 塑料扣件挤出机

Citations (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU28707A1 (fi) * 1900-01-01
US2261977A (en) * 1940-07-05 1941-11-11 Alexander T Deutsch Material working machine
US2456141A (en) * 1946-05-06 1948-12-14 Myerson Simon Apparatus for extrusion molding of plastic articles
US2808617A (en) * 1952-09-05 1957-10-08 Terracini Vittorio Means for molding lengthy articles made from multi-colored plastic material
DE1080646B (de) * 1957-12-06 1960-04-28 Siemens Ag Verfahren zur Kennzeichnung der aus Kunststoff bestehenden Isolierung elektrischer Leitungen
FR1277313A (fr) * 1960-09-29 1961-12-01 Geoffroy Delore Procédé et dispositif pour l'application de revêtements de différentes couleurs successives à un élément métallique en déroulement ininterrompu
US3143583A (en) * 1960-09-29 1964-08-04 Delore Sa Geoffroy Methods and apparatus for applying coverings to elongated members
US3256562A (en) * 1964-08-10 1966-06-21 Western Electric Co Extruding system
US3504402A (en) * 1968-01-05 1970-04-07 Dow Chemical Co Extrusion adaptor
DE1933570A1 (de) * 1969-07-02 1971-01-21 Maurer Ludwig Verfahren zur Herstellung von mehrfarbigen Formteilen aus plastischen Massen mittels Maschinen mit Schneckenplastizierung und Vorrichtung zur Durchfuehrung des Verfahrens
US3733156A (en) * 1968-12-06 1973-05-15 Ici Ltd Injection moulding machines
US3743460A (en) * 1971-08-09 1973-07-03 Nat Distillers Chem Corp Adapter for coextrusion apparatus
US3752617A (en) * 1969-10-13 1973-08-14 Sherwood Medical Ind Inc Apparatus for extruding products of plural components of varied proportions with scrap reclamation
US3801249A (en) * 1970-10-17 1974-04-02 Apparecchiature E Macchine Ute Apparatus for extruding profiles of thermoplastic material
US3820927A (en) * 1972-06-29 1974-06-28 Boston Insulated & Cable Co Dual layer crosshead system
US3901958A (en) * 1973-03-23 1975-08-26 Cellu Prod Co Method and apparatus for forming foamed plastic articles
US3924990A (en) * 1971-09-27 1975-12-09 Dow Chemical Co Coextrusion apparatus
US4028024A (en) * 1974-10-31 1977-06-07 Moreland Stephen T Manufacture of filled capsules or the like
US4128386A (en) * 1975-08-04 1978-12-05 Dynamit Nobel Aktiengesellschaft Apparatus for the extrusion of patterned sheets or panels of thermoplastic synthetic resin compositions
FR2400424A1 (fr) * 1977-08-20 1979-03-16 Gen Eng Radcliffe Procede et appareil d'extrusion
US4152387A (en) * 1976-05-21 1979-05-01 Peter Cloeren Method for forming multi-layer laminates
US4197069A (en) * 1976-05-21 1980-04-08 Peter Cloeren Variable thickness extrusion die
DE2921943A1 (de) * 1979-05-30 1980-12-11 Waskoenig & Walter Kabel Werk Verfahren zum wechseln der einfaerbung extrudierter kabelumhuellungen
US4276250A (en) * 1979-10-29 1981-06-30 Sherwood Medical Industries, Inc. Apparatus and method for producing tubular extrusions having axial sections of materials having different characteristics
US4280801A (en) * 1979-05-30 1981-07-28 Crompton & Knowles Corporation Crosshead
US4405547A (en) * 1980-10-20 1983-09-20 The Standard Oil Company Method of coextruding diverse materials
US4533308A (en) * 1984-04-16 1985-08-06 Peter Cloeren Multimanifold extrusion die and coextrusion process
US4600550A (en) * 1984-04-27 1986-07-15 Cloeren Peter Coextrusion process for overcoming the curtaining effect
EP0245314A1 (fr) * 1985-11-08 1987-11-19 Swisscab E A Schoen Sa Dispositif pour changer de couleur en cours d'extrusion d'une gaine autour d'un conducteur.
US4761129A (en) * 1987-07-07 1988-08-02 Swisscab E.A. Schoen S.A. Device for changing color during the extrusion of a sheath around a conductor
US4784815A (en) * 1987-06-05 1988-11-15 P.C.E. Corp. Edge-laminating apparatus and process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757258A (en) * 1980-09-24 1982-04-06 Hitachi Ltd Device for measuring microscope sample

Patent Citations (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU28707A1 (fi) * 1900-01-01
US2261977A (en) * 1940-07-05 1941-11-11 Alexander T Deutsch Material working machine
US2456141A (en) * 1946-05-06 1948-12-14 Myerson Simon Apparatus for extrusion molding of plastic articles
US2808617A (en) * 1952-09-05 1957-10-08 Terracini Vittorio Means for molding lengthy articles made from multi-colored plastic material
DE1080646B (de) * 1957-12-06 1960-04-28 Siemens Ag Verfahren zur Kennzeichnung der aus Kunststoff bestehenden Isolierung elektrischer Leitungen
US3143583A (en) * 1960-09-29 1964-08-04 Delore Sa Geoffroy Methods and apparatus for applying coverings to elongated members
FR1277313A (fr) * 1960-09-29 1961-12-01 Geoffroy Delore Procédé et dispositif pour l'application de revêtements de différentes couleurs successives à un élément métallique en déroulement ininterrompu
US3256562A (en) * 1964-08-10 1966-06-21 Western Electric Co Extruding system
US3504402A (en) * 1968-01-05 1970-04-07 Dow Chemical Co Extrusion adaptor
US3733156A (en) * 1968-12-06 1973-05-15 Ici Ltd Injection moulding machines
DE1933570A1 (de) * 1969-07-02 1971-01-21 Maurer Ludwig Verfahren zur Herstellung von mehrfarbigen Formteilen aus plastischen Massen mittels Maschinen mit Schneckenplastizierung und Vorrichtung zur Durchfuehrung des Verfahrens
US3752617A (en) * 1969-10-13 1973-08-14 Sherwood Medical Ind Inc Apparatus for extruding products of plural components of varied proportions with scrap reclamation
US3801249A (en) * 1970-10-17 1974-04-02 Apparecchiature E Macchine Ute Apparatus for extruding profiles of thermoplastic material
US3743460A (en) * 1971-08-09 1973-07-03 Nat Distillers Chem Corp Adapter for coextrusion apparatus
US3924990A (en) * 1971-09-27 1975-12-09 Dow Chemical Co Coextrusion apparatus
US3820927A (en) * 1972-06-29 1974-06-28 Boston Insulated & Cable Co Dual layer crosshead system
US3901958A (en) * 1973-03-23 1975-08-26 Cellu Prod Co Method and apparatus for forming foamed plastic articles
US4028024A (en) * 1974-10-31 1977-06-07 Moreland Stephen T Manufacture of filled capsules or the like
US4128386A (en) * 1975-08-04 1978-12-05 Dynamit Nobel Aktiengesellschaft Apparatus for the extrusion of patterned sheets or panels of thermoplastic synthetic resin compositions
US4152387A (en) * 1976-05-21 1979-05-01 Peter Cloeren Method for forming multi-layer laminates
US4197069A (en) * 1976-05-21 1980-04-08 Peter Cloeren Variable thickness extrusion die
FR2400424A1 (fr) * 1977-08-20 1979-03-16 Gen Eng Radcliffe Procede et appareil d'extrusion
DE2921943A1 (de) * 1979-05-30 1980-12-11 Waskoenig & Walter Kabel Werk Verfahren zum wechseln der einfaerbung extrudierter kabelumhuellungen
US4280801A (en) * 1979-05-30 1981-07-28 Crompton & Knowles Corporation Crosshead
US4276250A (en) * 1979-10-29 1981-06-30 Sherwood Medical Industries, Inc. Apparatus and method for producing tubular extrusions having axial sections of materials having different characteristics
US4405547A (en) * 1980-10-20 1983-09-20 The Standard Oil Company Method of coextruding diverse materials
US4533308A (en) * 1984-04-16 1985-08-06 Peter Cloeren Multimanifold extrusion die and coextrusion process
US4600550A (en) * 1984-04-27 1986-07-15 Cloeren Peter Coextrusion process for overcoming the curtaining effect
EP0245314A1 (fr) * 1985-11-08 1987-11-19 Swisscab E A Schoen Sa Dispositif pour changer de couleur en cours d'extrusion d'une gaine autour d'un conducteur.
US4784815A (en) * 1987-06-05 1988-11-15 P.C.E. Corp. Edge-laminating apparatus and process
US4761129A (en) * 1987-07-07 1988-08-02 Swisscab E.A. Schoen S.A. Device for changing color during the extrusion of a sheath around a conductor

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
Cloeren, Advertisement of 1988, The Cloeren Company. *
Davis Standard Division, blue print of extruder bleed valve, 1984. *
Davis-Standard Division, blue print of extruder bleed valve, 1984.
Unitek, Unitek Colour Changing System UCCS, pp. 533 534, Aug., 1988. *
Unitek, Unitek Colour Changing System-UCCS, pp. 533-534, Aug., 1988.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5773037A (en) * 1995-11-10 1998-06-30 Nokia-Maillefer Holding Sa Extrusion head with color-changing device
US6626206B1 (en) 2000-01-20 2003-09-30 Extrusion Dies, Inc. Feedblock for adjusting the dimensions of a set of co-extruded layers of a multi-layer sheet
US20100247746A1 (en) * 2006-04-21 2010-09-30 Southwire Company Method and Apparatus for Multi-Stream Metered Extrusion
US8801987B2 (en) * 2006-04-21 2014-08-12 Southwire Company, Llc Method and apparatus for multi-stream metered extrusion

Also Published As

Publication number Publication date
EP0259389B1 (fr) 1990-09-26
FI85351C (fi) 1992-04-10
US4832960A (en) 1989-05-23
EP0259389A1 (fr) 1988-03-16
CH678507A5 (fi) 1991-09-30
FI874862A (fi) 1987-11-04
WO1987005258A1 (fr) 1987-09-11
JPH07338B2 (ja) 1995-01-11
JPS63500580A (ja) 1988-03-03
FI85351B (fi) 1991-12-31
FI874862A0 (fi) 1987-11-04

Similar Documents

Publication Publication Date Title
USRE34711E (en) Device for feeding an extrusion head for plastic material
US4761129A (en) Device for changing color during the extrusion of a sheath around a conductor
US5616350A (en) Dual flow divider with diverter valve
CA1061971A (en) Extruder head for producing composite plastic tubes with staggered welds
US3868093A (en) Mixing screw and use thereof
US5046938A (en) Improved multiple layer die head with adjustable gaps
CA2082437A1 (en) Spiral fed multi-layer tubular die
EP0567926A1 (en) Plastic system for injection molding and extruding a hollow tube for forming a plastic container by blowing
CA2064688A1 (en) Storage head for a blow moulding machine
US5204120A (en) Intermittent multi-layer multi-parison extrusion head
US4998870A (en) Means for core coating
CA1230005A (en) Process for treating a material by extrusion and an apparatus for producing a composite food product
CN111300794A (zh) 一种双色线缆三层共挤装置
JPS6351851B2 (fi)
US4474545A (en) Device for manufacturing multicolored marble soaps, from a base paste and one or more liquid pigments
CA2244721C (en) Extruder
AU635470B2 (en) Die head for plastic with barrier forming material
JP2949421B2 (ja) 押出し成形品の色を変える装置を備えた押出し成形ヘッド
US3409940A (en) Press for the extrusion of plastic material
RU2224652C2 (ru) Способ изготовления компаунда из текучего синтетического материала и твердого волокнистого наполнителя путем экструзии и устройство для осуществления способа
US5324468A (en) Process for covering at least two cores with the same jacketing material
EP0486735A1 (en) Die head for plastic with barrier forming material
US5064364A (en) Apparatus for the continuous coating of cylindrical workpieces with a resilient material
US4126724A (en) Method and apparatus for producing multicolor patterns and sheet material produced thereby
JPS5695656A (en) Production of three-layer construction

Legal Events

Date Code Title Description
FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12