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CN87102620A - Method for producing plastic extrusion product and extrusion machine head - Google Patents

Method for producing plastic extrusion product and extrusion machine head Download PDF

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Publication number
CN87102620A
CN87102620A CN87102620A CN87102620A CN87102620A CN 87102620 A CN87102620 A CN 87102620A CN 87102620 A CN87102620 A CN 87102620A CN 87102620 A CN87102620 A CN 87102620A CN 87102620 A CN87102620 A CN 87102620A
Authority
CN
China
Prior art keywords
rotor
edge
extruder head
flow
stator
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.)
Pending
Application number
CN87102620A
Other languages
Chinese (zh)
Inventor
卡里·柯贾维南
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CN87102620A publication Critical patent/CN87102620A/en
Pending legal-status Critical Current

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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
    • B29C48/362—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing 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
    • 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
    • B29C48/03—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
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
    • B29C48/147—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle
    • B29C48/1472—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle at the die nozzle exit zone
    • 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
    • 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
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • 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
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
    • B29C48/3363—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die using a layered die, e.g. stacked discs
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/007—Using fluid under pressure
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Extruded articles such as cables, pipes, air blown films and the like having layers of material are typically made using a multi-layer nozzle in which the material is divided into several partial streams which are then joined to produce a tubular structure. A problem associated with this approach is that the interflow tends to show seams and streaks. In the extrusion process according to the invention, the flowing material is homogenized with the aid of a rotor between plates placed one above the other, the plastic material is introduced into the rotor space from the edge of the rotor, past the circular inner edge of the rotor, and then enters the nozzle as a tubular flow. The materials used in the manufacturing process, such as plastics, pigments, blowing agents, gases, curing agents, etc., are fed to the rotor rim and mixed by the rotor to form a homogeneous mixture and a homogeneous tubular product.

Description

The manufacture method of extrusion products from melted plastic and extruder head
When manufacturing has the extruded product of multilayer material, for example make cable, bottle, pipe, or during enraged film etc., each layer must have homogeneous thickness, what add in the materials adds material and must be evenly distributed in goods.Adding material can be in harmonious proportion in batching in advance, or pumps in compression stage, but a kind of tendency is arranged, and promptly owing to pressure, the step difference of speed and temperature is added material and can be separated from material, and deposits on the surface of material chute.When in manufacture process, using the extruder head that each shunting of material flow is merged, just can manifest striped or seam along on the line of shunting merging place.In recent operation, will add material usually and pump in the blender of extruder, will shunt and send into stock distributor from blender.
Method of the present invention is used the ring-shaped rotor that is clipped in the two boards, stacks mutually, and material is guided on the rotor edge, is transferred to the circular inner edge of rotor in the both sides of rotor, becomes the tubular extruding nozzle that enters again.Rotor relies on the kinetic energy or the external force rotation of material.Each shunting of material mixes in the narrow space between rotor and plate, and mixed material is made stream tube and directly exported, and release will divide other program that shunting merges.Therefore do not have seam and striped on the goods, and uniform thickness and endocentric construction are arranged.
Fig. 1 represents analysing and observe of extruder head three-layer type embodiment of the present invention.
Fig. 2 is the side-looking of Fig. 1 extruder head.
Fig. 3 is the rotor that is used for extruder head.
Fig. 4 can arrange in order to the supply groove that replaces Fig. 2.
Fig. 5 is the side-looking of another embodiment of extruder head of the present invention.
In Fig. 1, material is passed to the edge of rotor 2a-2c by the groove 8 between the plate 1a-1d.Plastics can utilize plastic material fusing and its pressurization added the press input; Other materials can be used such as gear pump and supply with.Material enters input slot 9 from groove 8, further enters bearing groove 10, is introduced into the narrow space between rotor and plate there again, and each material diversion mixes in this space, enters then in the centre of rotor hole.Cross the rotor both sides when bore edges merges when material flow, form two-layer pipe stream, introduced nozzle by all device if any four plate 1a-1d and three rotor 2a-2c.Utilize this device according to being pumped to the material of supplying with groove, can produce the stream tube structure of six layers of as many as.Groove 5 is used to import liquids and gases.
Fig. 2 shows the side-looking of the extruder head that the present invention proposes, comprising plate 1, on have blade 6(to be equivalent to the guide vane of radial turbine) be fixed on the rotor chamber surface, rotor 2 is arranged, be provided with the rotating vane that the blade 7(that is the convergency arrangement is equivalent to radial turbine), have tank systems 4 to supply with plastics materials, groove 5 is supplied with and is added material.Rotor among the figure rotates freely with material stream, and speed is equivalent to the flow velocity of material.Be fixed on the blade 6,7 on plate 1 and the rotor 2, the material that will supply with in rotor space is done effectively to mix, and makes it to flow into the centre of rotor hole.
Accompanying drawing does not show and is used for heating, and the servicing unit of installation etc. is because of irrelevant with principle of the present invention.
Fig. 3 shows the more detailed details of rotor configuration.The groove 11 of rotor edge is used to hold the spin of rotor bearing.
Fig. 4 shows the another kind arrangement of supplying with groove, and it is supplied with groove 12 and is divided into two, directly connects with input slot 9, and feed pressure is evenly distributed on whole edges of rotor.So, in principle, on the numerous points to the rotor space guiding material.
Fig. 5 shows one embodiment of the invention, gear 14 transmissions that are fixed on the axle 13 of its rotor.Use the tooth road at this scheme rotor edge without the groove among Fig. 3.
When some causer materials flow can not be passed to rotor with enough high or low speed, available this method obtained the effect of requirement.This is applicable to by changing rotary speed of rotator, to change such as the temperature of plastic material or the situation of its processing or mixability.
Method of the present invention can be used on the extensive use of plastics industry and general extruded product manufacturing etc. various different materials being mixed, and no matter it be a liquid state, molten state, and pasty state, or gaseous state or the like with production the rotational symmetry structure of some levels is arranged, and the number of plies are regardless of.
Also can pump into same material by whole feeder channels.At this moment, can with needs add material to the rotor that requires, or only supply with, with the structure of production different levels to the one side.And plate 1 increases conveniently with the number of transferring to 2, because do not relate to the raising of resistance to compression requirement, again because of whole same power transmission shafts of rotor.
Also can be integrally formed between plate 1 for the gear pump that adds material, thus can supply with plastic material with screw extrusion device.This extruder can be very little, at a high speed rotation, because the final plasticity of material can obtain with rotor 2, and because also available feeder channel is brought up to material temperature the level of requirement.Regulate rotor speed and can control frictional heat, to regulate the final temperature of material.Like this, just propose a kind of system, its heat delay constant is very short, and material has temperature homogeneity.

Claims (8)

1, molten plastic is made the method for tubular extruding object with an extruder head, it is characterized in that liquid or liquid gas synthesis are flow through between the stator plate (1) of extruder head and rotor (2) surface, extrusion head has the rotor (2) between two stator plate (1) and at least one plate at least, liquid or liquid gas condensation body flow into diametrically inwards from rotor edge, and enter the nozzle of extruder head, thereby flow stream is mixed by the rotating vane (7) that is fixed on the guide vane (6) on the stator surface and be fixed on the rotor surface, this blade is pressed the radial turbine arrangement, the material that will come from these mixed zones is sent to the round inner edge of rotor, send into barrel portion again, further enter nozzle (3).
2, as the method for claim 1, it is characterized by material flow edge to rotor (2) at least two positions is transmitted, this two positions is upwards symmetrical in the footpath of rotor both sides.
3, as the method in claim 1 or 2, it is characterized by promote the rotor rotation energy substantially by means of being fixed on the guide vane (6) on the stator surface and being fixed on rotating vane (7) on the rotor surface, obtain from material flow.
4, as the method in claim 1 or 2, it is characterized by and promote most of energy that the rotor rotation needs, can at least two points of rotor edge, apply by external force, these 2 footpaths in the rotor both sides are upwards symmetrical.
5, as the extruder head of the method in the claim 1, it is characterized by head at least three stator plate (1) and two rotors 2 are arranged, and groove (4) is arranged to the edge of plate (1) and rotor (2) both sides and this mixed zone feed fluid or liquid gas condensation body between the two, establish guide vane (6) on the stator surface, establish rotating vane (7) on the rotor surface, this all blade is pressed the radial turbine arrangement in the mixed zone, the material that flows out from the mixed zone forms a stream tube at the interflow, edge of rotor bore.
6, as the extruder head of claim 5, it is characterized by at least two positions that material chute (4) reaches rotor (2) edge, this two positions is symmetry upwards in the footpath of rotor both sides.
7, as the extruder head in claim 5 or 6, it is characterized by rotor (2) and promote rotation by at least two transmission devices, this transmission device such as gear train, symmetric arrangement makes progress in the footpath of rotor edge.
8, as the extruder head in the claim 5,6 or 7, the number of the material layer in the number that it is characterized by its commentaries on classics (2a-2c) and the goods is identical.
CN87102620A 1986-04-04 1987-04-04 Method for producing plastic extrusion product and extrusion machine head Pending CN87102620A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI861457A FI79802C (en) 1986-04-04 1986-04-04 FOERFARANDE OCH PRESSHUVUD FOER FRAMSTAELLNING AV EN ROERFORMAD EXTRUSIONSPRODUKT UR SMAELT PLASTMASSA.
FI861457 1986-04-04

Publications (1)

Publication Number Publication Date
CN87102620A true CN87102620A (en) 1987-10-14

Family

ID=8522415

Family Applications (1)

Application Number Title Priority Date Filing Date
CN87102620A Pending CN87102620A (en) 1986-04-04 1987-04-04 Method for producing plastic extrusion product and extrusion machine head

Country Status (7)

Country Link
EP (1) EP0310602A1 (en)
JP (1) JPH01501925A (en)
KR (1) KR880701172A (en)
CN (1) CN87102620A (en)
ES (1) ES2004134A6 (en)
FI (1) FI79802C (en)
WO (1) WO1987005856A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104220178A (en) * 2011-11-29 2014-12-17 康宁股份有限公司 Apparatus and method for skinning articles
US10611051B2 (en) 2013-10-15 2020-04-07 Corning Incorporated Systems and methods for skinning articles
US10634025B2 (en) 2011-11-29 2020-04-28 Corning Incorporated Apparatus and method for skinning articles
US10744675B2 (en) 2014-03-18 2020-08-18 Corning Incorporated Skinning of ceramic honeycomb bodies

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3315271B2 (en) * 1994-09-21 2002-08-19 呉羽化学工業株式会社 Laminated resin molding
DE69617953T2 (en) * 1995-06-26 2002-06-27 Nextrom Holding S.A., Ecublens EXTRUSION DEVICE AND METHOD FOR ORIENTING PLASTIC MATERIAL BY USING AN EXTRUSION DEVICE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490097A (en) * 1968-02-16 1970-01-20 Dow Chemical Co Flighted extruder
YU32117B (en) * 1968-09-02 1974-04-30 Sidel Sa Presa za istiskivanje sa obrtnom plocom
FR1596699A (en) * 1968-11-28 1970-06-22
DE2026385A1 (en) * 1970-05-29 1971-12-09 Anger Kunststoff Disk extruder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104220178A (en) * 2011-11-29 2014-12-17 康宁股份有限公司 Apparatus and method for skinning articles
US10634025B2 (en) 2011-11-29 2020-04-28 Corning Incorporated Apparatus and method for skinning articles
US10611051B2 (en) 2013-10-15 2020-04-07 Corning Incorporated Systems and methods for skinning articles
US10744675B2 (en) 2014-03-18 2020-08-18 Corning Incorporated Skinning of ceramic honeycomb bodies

Also Published As

Publication number Publication date
FI79802C (en) 1990-03-12
KR880701172A (en) 1988-07-26
FI79802B (en) 1989-11-30
WO1987005856A1 (en) 1987-10-08
JPH01501925A (en) 1989-07-06
FI861457A0 (en) 1986-04-04
EP0310602A1 (en) 1989-04-12
FI861457A7 (en) 1987-10-05
ES2004134A6 (en) 1988-12-01

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