DE880068C - Injection molding machine - Google Patents

Injection molding machine

Info

Publication number
DE880068C
DE880068C DEB7171D DEB0007171D DE880068C DE 880068 C DE880068 C DE 880068C DE B7171 D DEB7171 D DE B7171D DE B0007171 D DEB0007171 D DE B0007171D DE 880068 C DE880068 C DE 880068C
Authority
DE
Germany
Prior art keywords
injection molding
molding machine
ejection
effected
changing
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
Application number
DEB7171D
Other languages
German (de)
Inventor
Hans Dipl-Ing Beck
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB7171D priority Critical patent/DE880068C/en
Application granted granted Critical
Publication of DE880068C publication Critical patent/DE880068C/en
Expired legal-status Critical Current

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
    • B29C45/72—Heating or cooling
    • 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
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • 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
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

Spritzgußmaschine Zusatz zum Patent 858310 Das Patent S5S 310 betrifft eine Spritzgußmaschine für thermoplastische Kunststoffe, bei der die Erwärmung auf Fließtemperatur in einem mit einer Transportschnecke versehenen Massezylinder, das Ausspritzen durch Veränderung des Füllvolumens des Alassezylinders bewirkt wird.Injection molding machine addendum to patent 858310 The patent S5S 310 concerns an injection molding machine for thermoplastics, in which the heating on Flow temperature in a barrel provided with a screw conveyor, the Ejection is effected by changing the filling volume of the Alasse cylinder.

Es wurde nun gefunden, daß man an Stelle einer Schnecke vorteilhaft mehrere Schnecl;en, die nebeneinander oder kreisförmig angeordnet sein können, verwendet. Damit wird eine erhöhte Förderleistung, Schonung und bessere Homogenisierung des zu fördernden Materials erreicht. Es gelingt auf diese Weise thermoplastische Kunststoffe, die sonst füt das Spritzgußverfahren nicht in Frage kommen, xvie beispielsweise hochpolymeres Vinylchlorid, bei Temperaturen über dem Fließpunkt bei großer Leistung ebenfalls zu verspritzen. Die Schnecken können jede für sich getrennt arbeiten, sie werden jedoch zweckmäßig ineinandergreifend angeordnet, weil durch die damit erzielte Kitetwirkung wiederum eine bessere Homogenisierung erreicht wird. It has now been found that, instead of a screw, it is advantageous several snails, which can be arranged next to each other or in a circle, are used. This results in an increased delivery rate, protection and better homogenization of the material to be conveyed reached. In this way, thermoplastics can be which are otherwise out of the question for the injection molding process, xvie for example high polymer vinyl chloride, at temperatures above the pour point at large power also to splash. The snails can each work separately, However, they are expediently arranged interlocking because by so achieved kite effect in turn a better homogenization is achieved.

Die Schnecken können sowohl gegeneinander als auch gleichlaufend arbeiten, und ihr Fördergewinde kann in der Steigung sowohl stetig als auch progressiv beschaffen sein.The screws can work against each other or in the same direction, and their conveying thread can have both a steady and a progressive pitch be.

Claims (1)

PATENTANSPRUCH: Spritzgußmaschine für thermoplastische Kunststoffe gemäß Patent 858 3IO, dadurch gekennzeichnet, daß die Erwärmung auf die Fließtemperatur in einem mit mehreren Transportschnecken versehenen Massezylinder, das Ausspritzen durch Veränderung des Füllvolumens des Massezylinders bewirkt wird.PATENT CLAIM: Injection molding machine for thermoplastics according to patent 858 3IO, characterized in that the heating to the flow temperature In a barrel provided with several transport screws, the ejection is effected by changing the filling volume of the mass cylinder.
DEB7171D 1944-12-17 1944-12-17 Injection molding machine Expired DE880068C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB7171D DE880068C (en) 1944-12-17 1944-12-17 Injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB7171D DE880068C (en) 1944-12-17 1944-12-17 Injection molding machine

Publications (1)

Publication Number Publication Date
DE880068C true DE880068C (en) 1953-06-18

Family

ID=6955174

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB7171D Expired DE880068C (en) 1944-12-17 1944-12-17 Injection molding machine

Country Status (1)

Country Link
DE (1) DE880068C (en)

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