WO1988009254A1 - Machine de moulage par injection pour manufacturer des pieces en plastique avec des substances chimiques - Google Patents

Machine de moulage par injection pour manufacturer des pieces en plastique avec des substances chimiques Download PDF

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Publication number
WO1988009254A1
WO1988009254A1 PCT/DE1988/000305 DE8800305W WO8809254A1 WO 1988009254 A1 WO1988009254 A1 WO 1988009254A1 DE 8800305 W DE8800305 W DE 8800305W WO 8809254 A1 WO8809254 A1 WO 8809254A1
Authority
WO
WIPO (PCT)
Prior art keywords
injection molding
melt guide
molding machine
machine according
melt
Prior art date
Application number
PCT/DE1988/000305
Other languages
German (de)
English (en)
Inventor
Hans-Heinrich Kaaden
Original Assignee
Stübbe Gmbh
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 Stübbe Gmbh filed Critical Stübbe Gmbh
Publication of WO1988009254A1 publication Critical patent/WO1988009254A1/fr

Links

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
    • B29C45/26—Moulds
    • B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
    • B29C45/322—Runner systems for distributing the moulding material to the stacked mould cavities

Definitions

  • the invention relates to an injection molding machine for the manufacture of plastic parts in the injection molding or reaction injection molding process from chemical materials with a longitudinally divided central mold mounting plate, to each of which a mold half of a mold is fastened and between the two parts of which there are several separate melt guide rails Melt control system is arranged and the two parts are held together by a quick release device.
  • each separate melt guide rail is firmly clamped on its end face between the split mold mounting plate.
  • the end of the melt is introduced into the melt guide rails so that it is possible to arrange a plurality of melt guide rails next to one another.
  • this arrangement always requires the melt to be introduced into the melt guide rails at the end.
  • the invention is based on the object of being able to arrange a plurality of separate melt guide rails even when the melt is introduced lengthways.
  • melt guide rails are firmly positioned on the inside of the divided mold mounting plate and are arranged offset from one another.
  • each melt guide rail can be pressed onto an associated counter bearing via clamping pieces and can be firmly and immovably positioned by means of a wedge connection.
  • the counter bearings of all melt guide rails are arranged on one or both inner sides of the split mold clamping plate, preferably on the part of the split mold clamping plate located opposite the injection unit.
  • the counter bearings take over the forces from the contact pressure of the injection unit.
  • the counter bearings are expediently arranged in the region of a recess in the split mold clamping plate, the recess being able to be arranged entirely or partially in an end extension of part of the split mold clamping plate.
  • the offset arrangement of the melt guide rails means that the melt can be fed directly from the spray unit to the melt guide rails is guaranteed, as a result of which shorter flow paths are achieved.
  • the contact pressure of the clamping unit can be better absorbed by the design according to the invention.
  • Fig. 1 is a vertical section through a platen according to line A-A of Fig. 2 and
  • FIG. 2 shows a horizontal section along line B-B of FIG. 1.
  • the longitudinally divided central mold mounting plate 1 is mounted and guided on guide rails 7.
  • the two parts of the platen 1 are held together by a quick release device, not shown. After loosening this quick clamping device, a lateral movement of the two parts of the platen 1 on the guide bars 7 is possible, so that the melt guide system, which is arranged between the parts and consists of several separate melt guide rails 2, is accessible.
  • the melt guide rails 2 are firmly positioned on the inner sides of the split platen 1 and are arranged offset from one another. Each melt guide rail 2 can be pressed onto an associated counter bearing 3 by means of clamping pieces 5 and by means of a key connection 4 can be positioned firmly and immovably.
  • the clamping pieces 5 can be connected as desired to the inside of the split platen 1, preferably by a screw connection.
  • all counter bearings 3 are arranged on the part of the split mold clamping plate 1 located opposite the injection unit in the region of a recess 6 of the split mold clamping plate 1. This recess 6 is partly located in an end extension of part of the divided platen 1.

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)

Abstract

Une machine de moulage par injection telle celle décrite dans le brevet DE-PS 35 34 254 comprend plusieurs rails séparés (2) de guidage de la masse fondue, même lorsque celle-ci est introduite par le côté longitudinal. A cet effet, les rails (2) de guidage de la masse fondue sont rigidement fixés sur les parois internes du plateau (1) subdivisé de fixation du moule et mutuellment décalés. Des pièces de serrage permettent de presser chaque rail (2) de guidage de la masse fondue contre un contre-palier correspondant (3) agencé dans la région d'une cavité (6) ménagée dans le plateau subdivisé (1) de fixation du moule. Le décalage des rails (2) de guidage de la masse fondue permet de transférer directement la masse fondue de l'unité d'injection, donc d'obtenir des trajets d'écoulement plus courts et une meilleure montée de la pression appliquée par l'unité de fixation.
PCT/DE1988/000305 1987-05-23 1988-05-21 Machine de moulage par injection pour manufacturer des pieces en plastique avec des substances chimiques WO1988009254A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3717414.2 1987-05-23
DE3717414 1987-05-23

Publications (1)

Publication Number Publication Date
WO1988009254A1 true WO1988009254A1 (fr) 1988-12-01

Family

ID=6328257

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1988/000305 WO1988009254A1 (fr) 1987-05-23 1988-05-21 Machine de moulage par injection pour manufacturer des pieces en plastique avec des substances chimiques

Country Status (1)

Country Link
WO (1) WO1988009254A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2152932A1 (en) * 1971-09-14 1973-04-27 Koninkl Maschf Injection moulding - of relative large enclosed area objects eg plates esp us ing multi impression tools
EP0216367A2 (fr) * 1985-09-26 1987-04-01 Stübbe GmbH Machine à mouler par injection pour fabriquer des pièces en matière plastique par le procédé de moulage par injection ou de moulage par injection à réaction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2152932A1 (en) * 1971-09-14 1973-04-27 Koninkl Maschf Injection moulding - of relative large enclosed area objects eg plates esp us ing multi impression tools
EP0216367A2 (fr) * 1985-09-26 1987-04-01 Stübbe GmbH Machine à mouler par injection pour fabriquer des pièces en matière plastique par le procédé de moulage par injection ou de moulage par injection à réaction

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