DE4140292C1 - Throughput control for screw extruder - has variable depth grooves in housing near inlet zone - Google Patents

Throughput control for screw extruder - has variable depth grooves in housing near inlet zone

Info

Publication number
DE4140292C1
DE4140292C1 DE4140292A DE4140292A DE4140292C1 DE 4140292 C1 DE4140292 C1 DE 4140292C1 DE 4140292 A DE4140292 A DE 4140292A DE 4140292 A DE4140292 A DE 4140292A DE 4140292 C1 DE4140292 C1 DE 4140292C1
Authority
DE
Germany
Prior art keywords
screw extruder
inlet zone
grooves
variable depth
housing near
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
DE4140292A
Other languages
German (de)
Inventor
Kami 6081 Stockstadt De Kahrom
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
Priority to DE4140292A priority Critical patent/DE4140292C1/en
Application granted granted Critical
Publication of DE4140292C1 publication Critical patent/DE4140292C1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/62—Barrels or cylinders
    • 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
    • B29C48/285—Feeding the extrusion material to 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
    • B29C48/25—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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • 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
    • B29C48/68—Barrels or cylinders
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • B29C48/686—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having grooves or cavities
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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

Landscapes

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

Abstract

A plastics processing machine with a screw has a feed zone with adjustable depth grooves. The shape of the grooves can be altered as required. In embodiments, a single screw extruder has an inlet zone which is made as a separate replaceable unit attached by a flange. The bushing has longitudinal grooves whose depth is tailored to suit the required feed rate for the material which is being processed. USE/ADVANTAGE - The invention is a simple method of controlling the extruder feed rate in injection moulding machines.

Description

Die Erfindung betrifft eine genutete Einzugszone für Kunststoff­ maschinen mit Schneckenplastifizierung gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a grooved feed zone for plastic machines with screw plasticization according to the generic term of Claim 1.

Zur Regelung der Einzugsmenge an Spritzgießmaschinen in der Kunststofftechnik werden zur Zeit komplizierte Maschinenteile angewandt, die teuer und störanfällig sind.To control the feed quantity of injection molding machines in the Plastic technology is currently becoming complicated machine parts applied, which are expensive and prone to failure.

Mit der Erfindung wird bewirkt, daß das Problem einfacher zu lösen ist, wobei unterschiedliche Materialien verarbeitet werden können. Bei Anwendung der Erfindung ist eine Störung der Funktion beinahe ausgeschlossen.The invention makes the problem easier to solve is, whereby different materials can be processed. When using the invention there is almost a malfunction locked out.

Die Erfindung hat die Aufgabe, die Regelung der Einzugsmenge an Spritzgußmaschinen so zu vereinfachen, daß keine zusätzlichen, hohen Maschinenkosten entstehen.The invention has the task of regulating to simplify the intake of injection molding machines so that no additional, high machine costs arise.

Diese Aufgabe wird durch eine Vorrichtung mit den Merkmalen des Patentanspruchs 1 gelöst.This task is accomplished by a device with the features of claim 1 solved.

Die Erfindung wird anhand von Zeichnungen erläutert. Es zeigt:The invention is explained with reference to drawings. It shows:

Fig. 1 einen Längsschnitt eines Einzugsbereiches eines Einschneckenextruders und Fig. 1 shows a longitudinal section of a feed area of a single screw extruder and

Fig. 2 zwei Teil-Querschnitte durch die Anordnung gemäß Fig. 1, aus denen die Brückenbildung durch Klemmwirkung des Materials ersichtlich ist. Fig. 2 shows two partial cross-sections through the arrangement according to FIG. 1, from which the bridge formation can be seen by the clamping action of the material.

Fig. 1 stellt die Einzugszone eines Einschneckenextruders dar. Zu beachten ist, daß das Teil separat angefertigt und aufgeflanscht wird. In diesem Bild wird der Verlauf der Nut dargestellt. Fig. 2 zeigt die Nut im Schnitt, und der Pfeil deutet an, in welcher Richtung die Nuttiefe verändert werden kann. Fig. 1 shows the feed zone of a single screw extruder. It should be noted that the part is manufactured and flanged separately. The course of the groove is shown in this picture. Fig. 2 shows the groove in section, and the arrow indicates in which direction the groove depth can be changed.

Mit der erfindungsgemäßen Vorrichtung können die Kosten für eine Einzugsregelung im Vergleich zu herkömmlichen Vorrichtungen um 91% gesenkt werden.With the device according to the invention, the costs for a Feed control compared to conventional devices by 91% be lowered.

Claims (2)

1. Genutete Einzugszone für Kunststoffmaschinen mit Schneckenplastifizierung, dadurch gekennzeichnet, daß die Tiefe der Nuten einstellbar ist.1. Grooved feed zone for plastic machines with screw plastification, characterized in that the depth of the grooves is adjustable. 2. Genutete Einzugszone nach Patentanspruch 1, dadurch gekennzeichnet, daß die Nutenform nach Bedarf veränderbar ist.2. Grooved feed zone according to claim 1, characterized featured, that the groove shape can be changed as required.
DE4140292A 1991-12-06 1991-12-06 Throughput control for screw extruder - has variable depth grooves in housing near inlet zone Expired - Lifetime DE4140292C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4140292A DE4140292C1 (en) 1991-12-06 1991-12-06 Throughput control for screw extruder - has variable depth grooves in housing near inlet zone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4140292A DE4140292C1 (en) 1991-12-06 1991-12-06 Throughput control for screw extruder - has variable depth grooves in housing near inlet zone

Publications (1)

Publication Number Publication Date
DE4140292C1 true DE4140292C1 (en) 1993-07-15

Family

ID=6446458

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4140292A Expired - Lifetime DE4140292C1 (en) 1991-12-06 1991-12-06 Throughput control for screw extruder - has variable depth grooves in housing near inlet zone

Country Status (1)

Country Link
DE (1) DE4140292C1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112306A1 (en) * 1971-03-15 1972-09-21 Alpine Ag Feeding short screw extruder - with axial strips in annular gap between screw and barrel
DE3233841A1 (en) * 1981-09-15 1983-03-31 Basf Ag, 6700 Ludwigshafen Screw extruder for processing thermoplastic and/or thermocurable compositions
EP0171756A2 (en) * 1984-08-17 1986-02-19 Hoechst Aktiengesellschaft Screw extruder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112306A1 (en) * 1971-03-15 1972-09-21 Alpine Ag Feeding short screw extruder - with axial strips in annular gap between screw and barrel
DE3233841A1 (en) * 1981-09-15 1983-03-31 Basf Ag, 6700 Ludwigshafen Screw extruder for processing thermoplastic and/or thermocurable compositions
EP0171756A2 (en) * 1984-08-17 1986-02-19 Hoechst Aktiengesellschaft Screw extruder
DE3430254A1 (en) * 1984-08-17 1986-02-27 Hoechst Ag, 6230 Frankfurt SNAIL EXTRUDERS
EP0171756B1 (en) * 1984-08-17 1989-11-02 Hoechst Aktiengesellschaft Screw extruder

Similar Documents

Publication Publication Date Title
DE2209355A1 (en) Injection press
DE68909588T2 (en) Continuous kneading machine.
DE1201041B (en) Screw extruder for plastic masses, e.g. B. thermoplastics
DE3887106T2 (en) AUTOMATIC EMPTYING PROCESS FOR INJECTION MOLDING MACHINES.
DE2000857A1 (en) Method and device for extruding thermoplastic material, in particular natural or synthetic rubber
DE102020124782A1 (en) Method and device for the additive manufacturing of a product
EP1151845A2 (en) Installation for preparing and further processing a thermoplastic material and method for operating said installation
DE1779772A1 (en) Extrusion press for visco-elastic plastics and process for plasticizing and extrusion of such plastics
DE4140292C1 (en) Throughput control for screw extruder - has variable depth grooves in housing near inlet zone
DE19983383B4 (en) Device for injection molding of rubber and plastic
DE4218756C1 (en) Injection moulding machine and extrusion press filter appts. for thermoplastics - comprises barrier member in inlet channel prior to sieve bolt and housing for unimpeded plastic flow in open barrier position, for efficient continual working
DE3229810A1 (en) DEVICE FOR PLASTICIZING PLASTICS
DE3417316A1 (en) Device for extruding a film web comprising thermoplastics
DE4125181C1 (en) Filter appts. for extrusion presses, injection moulding machine etc. - includes sieve unit contg. plate(s) having filter candle-cartridges on dirty side
EP0443143B1 (en) Screw extruder for the processing of a strip of rubber or plastic
EP0508079A2 (en) Extruder-gear pump combination
EP0566713B1 (en) Process and device for continuously filtering and separating thermoplastic materials
EP0171609A2 (en) Apparatus for controlling and/or limiting the mould separation force in injection-moulding machines
DE1554968C (en) Device for extruding plastic
DE1529782A1 (en) Injection head for plastic screw injection molding machines
DE1554848A1 (en) Plasticizing device
DE1197611B (en) Screw press for injectable materials such as B. Plastics
DE1554913C (en) Filter device for extrusion presses and injection molding machines
AT306347B (en) Plasticizing device for an extrusion or injection molding press for processing thermoplastic material, in particular plastic
DE29716439U1 (en) Injection unit for injection molding machines

Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8322 Nonbinding interest in granting licences declared
8363 Opposition against the patent
8330 Complete renunciation