CS266244B1 - Device for plastic warm up - Google Patents

Device for plastic warm up Download PDF

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Publication number
CS266244B1
CS266244B1 CS857532A CS753285A CS266244B1 CS 266244 B1 CS266244 B1 CS 266244B1 CS 857532 A CS857532 A CS 857532A CS 753285 A CS753285 A CS 753285A CS 266244 B1 CS266244 B1 CS 266244B1
Authority
CS
Czechoslovakia
Prior art keywords
openings
plastics
dissipation
plasticiser
nozzle
Prior art date
Application number
CS857532A
Other languages
Czech (cs)
Other versions
CS753285A1 (en
Inventor
Hartmut Dr Ing Schiefer
Rainer Dipl Ing Neudert
Bernd Dipl Ing Raum
Rolf Dipl Ing Walther
Eberhard Strauss
Erich Dr Ing Liehr
Walter Reschke
Gunter Dipl Ing Sperk
Original Assignee
Schiefer Hartmut
Neudert Rainer
Raum Bernd
Rolf Dipl Ing Walther
Eberhard Strauss
Erich Dr Ing Liehr
Walter Reschke
Gunter Dipl Ing Sperk
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 Schiefer Hartmut, Neudert Rainer, Raum Bernd, Rolf Dipl Ing Walther, Eberhard Strauss, Erich Dr Ing Liehr, Walter Reschke, Gunter Dipl Ing Sperk filed Critical Schiefer Hartmut
Publication of CS753285A1 publication Critical patent/CS753285A1/en
Publication of CS266244B1 publication Critical patent/CS266244B1/en

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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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/581—Devices for influencing the material flow, e.g. "torpedo constructions" or mixing devices

Landscapes

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

Abstract

The apparatus is intended for the controlled heating of plastics compositions, particularly molten polymers, during flow between a plasticiser 1 and a nozzle 3. The plastics composition is heated by dissipation due to the fact that there is between the plasticiser 1 and nozzle 3 a device 5 formed with radial slots (8), Fig. 2 (not shown) which produces a pressure drop in the plastics. The slots may instead be axially disposed, Figs. 3, 4 (not shown), or of conical configuration, Fig. 5 (not shown). <IMAGE>

Description

(57) Reěení se týká zařízení pro ohřev plastických hmot na stanovenou teplotu konkrétně roztavení polymerů v průběhu výchozího formování. Cílem řešení je zatřízení, které umožní zpracování materiálu citlivého na teplo,, např. PVC, metodou výchozího formování. Přitom je nutno dosáhnout vysokou technologickou, stabilitu průběhu zpracování při nízkých nákladech, vysoké jakosti výrobků a zamezení zdraví škodlivých pracovních podmínek zajištěním dobrého tekutého stavu materiálu při krátkodobém tepelném zatížení· Podstata řešení spočívá v tom, že se plastická hmota zahřívá při využití disipačního jevu tak, že se mezi plastikátor a hrdlo umístí zařízení s jedním disipačním prvkem opatřeným štěrbinovými propustnými otvory. Řešení umožňuje zpracování, zvláště metodou odlévání pod tlakem, materiálů citlivých <ja teplo, jako např. PVC a zejména umožňuje zpracování hmoty se složitými tepelnými vlastnostmi metodou výchozího formování.(57) The present invention relates to a device for heating plastics to a specified temperature, namely the melting of polymers during initial molding. The aim of the solution is to provide a method that allows heat-sensitive material, such as PVC, to be processed by the initial molding method. It is necessary to achieve high technological, process stability at low cost, high product quality and avoid harmful working conditions by ensuring good liquid state of the material at short term heat load. The essence of the solution is that the plastic heats A device with a single dissipation element provided with slotted through holes is placed between the plasticizer and the neck. The solution allows processing, in particular by the die casting method, of heat-sensitive materials such as PVC and, in particular, allows the processing of mass with complex thermal properties by the initial molding method.

Claims (8)

PŘEDJET VYNÁLEZUPREVIOUS THE INVENTION 1. Zařízení pro ohřev plastických hmot e využitím disipačního jevu v průběhu výchozího formování, výhodně v průběhu lití pod tlakem, umístěné mezi plastikátorem a formou, vyznačující se tím, že jeden nebo několik disipačních prvků (5) se upevní v pouzdře (2), přitom každý disipační prvek je opatřen štěrbinovými průchozími otvory (8) umístěnými rovnoběžně a/nebo za sebou·An apparatus for heating plastics by utilizing a dissipation phenomenon during initial molding, preferably during die casting, between a plasticizer and a mold, characterized in that one or more dissipation elements (5) are fixed in the housing (2), each dissipation element is provided with slotted through holes (8) arranged parallel and / or one after the other 2. Zařízení podle bodu 1, vyznačující se tím, že otvory (8) jsou umístěny osově symetricky.Device according to claim 1, characterized in that the openings (8) are arranged axially symmetrically. 3. Zařízení podle bodu 1, vyznačující ae tím, že otvory (8) jsou umístěny radiálně.Device according to claim 1, characterized in that the openings (8) are located radially. 4. Zařízení podle bodu 1, vyznačující se tím, že otvory (B) jsou umístěny ve směru osy.Device according to claim 1, characterized in that the openings (B) are arranged in the axial direction. 5. Zařízení podle bodů 1 až 4, vyznačující se tím, že umístění otvorů (8) je kombinováno.Device according to Claims 1 to 4, characterized in that the location of the openings (8) is combined. 6. Zařízení podle bodů 1 až 5, vyznačující se tím, že otvory (8) se nastavují nebo regulují.Device according to Claims 1 to 5, characterized in that the openings (8) are adjusted or regulated. 7. Zařízení podle bodů 1 až 6, vyznačující se tím, že otvory (8) jsou za sebou posunuty. 7Device according to Claims 1 to 6, characterized in that the openings (8) are displaced one behind the other. 7 8. Zařízení podle bodů 1 až 7, vyznačující se otvory (Θ) mají kuželovitý tvar.8. Device according to claims 1 to 7, characterized by the openings (Θ) having a conical shape.
CS857532A 1984-10-08 1985-10-03 Device for plastic warm up CS266244B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD26809284A DD232456B1 (en) 1984-10-08 1984-10-08 DEVICE FOR RECYCLING PLASTIC MASSES

Publications (2)

Publication Number Publication Date
CS753285A1 CS753285A1 (en) 1988-08-16
CS266244B1 true CS266244B1 (en) 1989-12-13

Family

ID=5561108

Family Applications (1)

Application Number Title Priority Date Filing Date
CS857532A CS266244B1 (en) 1984-10-08 1985-10-03 Device for plastic warm up

Country Status (5)

Country Link
BG (1) BG46192A1 (en)
CS (1) CS266244B1 (en)
DD (1) DD232456B1 (en)
DE (1) DE3533349A1 (en)
GB (1) GB2166078A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU601483B2 (en) * 1986-09-19 1990-09-13 Kabushiki Kaisha Kobayashi Method of injection-molding foamed products
DE4235164C1 (en) * 1992-10-19 1994-06-01 Theysohn Friedrich Fa Profile tool for extruders
DE4340990C2 (en) * 1993-11-05 1996-09-19 Battenfeld Gmbh Method and device for injection molding multi-layer objects
DE102010034342A1 (en) 2010-08-14 2012-02-16 Vereinigung zur Förderung des Instituts für Kunststoffverarbeitung in Industrie und Handwerk an der Rhein.-Westf. Technischen Hochschule Aachen e.V. Method for increasing start-melt temperature in injection molding of rubber and in injection molding of other molding compositions, involves approaching temperature of molding compositions during injection molding process
DE102011010185A1 (en) 2011-02-02 2012-08-02 Vereinigung zur Förderung des Instituts für Kunststoffverarbeitung in Industrie und Handwerk an der Rhein.-Westf. Technischen Hochschule Aachen e.V. Device for producing and regulating discontinuous production process of annular moldings, has strand-type melt strand that is separated by pre-distribution system into one or multiple spiraly extending channels

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB856097A (en) * 1959-03-20 1960-12-14 British Industrial Plastics Improvements in injection moulding machines
GB1008064A (en) * 1962-11-26 1965-10-27 Continental Gummi Werke Ag A heated injection nozzle for use in injection moulding apparatus
GB2008964B (en) * 1977-11-24 1982-05-12 Buckley P B Injection of plastics

Also Published As

Publication number Publication date
DE3533349A1 (en) 1986-04-10
GB2166078A (en) 1986-04-30
BG46192A1 (en) 1989-11-15
DD232456A1 (en) 1986-01-29
CS753285A1 (en) 1988-08-16
DD232456B1 (en) 1988-07-06
GB8523864D0 (en) 1985-10-30

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