DE914554C - Extrusion press for the production of strips or the like. Any length made of synthetic resin, especially hardened synthetic resin - Google Patents

Extrusion press for the production of strips or the like. Any length made of synthetic resin, especially hardened synthetic resin

Info

Publication number
DE914554C
DE914554C DEN2095D DEN0002095D DE914554C DE 914554 C DE914554 C DE 914554C DE N2095 D DEN2095 D DE N2095D DE N0002095 D DEN0002095 D DE N0002095D DE 914554 C DE914554 C DE 914554C
Authority
DE
Germany
Prior art keywords
synthetic resin
production
strands
strips
extrusion press
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
DEN2095D
Other languages
German (de)
Inventor
Ludwig Lang
Dipl-Ing Walter Tochtermann
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.)
Neoresit Strangpresswerk G M B
Original Assignee
Neoresit Strangpresswerk G M B
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 Neoresit Strangpresswerk G M B filed Critical Neoresit Strangpresswerk G M B
Priority to DEN2095D priority Critical patent/DE914554C/en
Application granted granted Critical
Publication of DE914554C publication Critical patent/DE914554C/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
    • 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
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
    • 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
    • B29C48/05—Filamentary, e.g. strands
    • 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

Landscapes

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

Description

Strangpresse für die Herstellung von Leisten od. dgl. beliebiger Länge aus Kunstharz, insbesondere aus gehärtetem Kunstharz Die Erfindung bezieht sich auf eine Strangpresse zur Herstellung von beliebig langen Körpern, z. B.Extrusion press for the production of strips or the like of any length Made of synthetic resin, in particular of hardened synthetic resin The invention relates to an extruder for the production of bodies of any length, e.g. B.

Leisten, Rohren usw., aus Kunstharz, vorzugsweise ausgehend von härtharem Kunstharz, wobei die Stränge die Preßform im gehärteten oder nahezu gehärteten Zustand verlassen.Moldings, pipes, etc., made of synthetic resin, preferably based on hardened resin Synthetic resin, the strands of the mold in the hardened or almost hardened state leaving.

Es ist schon vorgeschlagen worden, bei derartigen Kunstharzstrangpressen mit einem Stempel eine größere Anzahl von Formräumen zu beschicken, d. h. mehrere Stränge unabhängig voneinander austreten zu lassen. It has been proposed to use such synthetic resin extrusions loading a larger number of mold spaces with one punch, d. H. several To let strands emerge independently of each other.

Bei einem solchen Vorgehen macht nicht nur die gleichmäßige Zuführung der Masse zu den einzelnen voneinander getrennten Formräumen mitunter Schwierigkeiten, sondern vor allem die Aufrechterhaltung der gleichmäßigen Durchführung durch die Formräume. Praktisch ist man bisher so vorgegangen, daß jedem Formraum ein eigener Stempel zugeordnet wurde. Nach der Erfindung wird nun vorgeschlagen, mehrere Stränge mittels eines Stempels zu pressen, wobei allerdings die Formräume für die einzelnen Stränge miteinander in Verbindung stehen und ein aus mehreren Strängen bestehender zusammenhängender Körper die Preßform verläßt. Die Verbindung zwischen den einzelnen Strängen ist dabei durch verbindende Grate, die leicht zerstört werden können, so daß dann die einzelnen Stränge für sich vorliegen, geschaffen. With such a procedure, it is not only the even feed that makes the difference the mass to the individual separate mold spaces sometimes difficulties, but above all the maintenance of the uniform implementation by the Shape spaces. In practice, the procedure so far has been that each mold space has its own Stamp was assigned. According to the invention it is now proposed several strands to press by means of a punch, although the mold spaces for the individual Strands are connected to one another and are made up of several strands coherent body leaves the mold. The connection between each Strands is made up of connecting ridges that can easily be destroyed so that the individual strands are then available for themselves, created.

Der Formraum ist also so gestaltet, daß zwischen den Profilen für die einzelnen Stränge schmale Schlitze für die Grate bestehen. Bei der bevorzugten Benutzung härtbarer Kunstharze härtet die Masse in diesen schmalen Schlitzen verhältnismäßig schnell, da der Querschnitt geringer ist als der der Formräume für die eigentlichen Stränge. Ein solches rasches Härten ist nicht mit Nachteilen verbunden, sondern im Gegenteil, vorteilhaft, da, wie gefunden wurde, diese rasch gehärteten Grate den Vorschub der Masse in den Formräumen für die eigentlichen Stränge regeln. The mold space is designed so that between the profiles for the individual strands are narrow There are slots for the ridges. at the preferred use of curable synthetic resins hardens the mass in these narrow Slitting relatively quickly, since the cross-section is smaller than that of the mold spaces for the actual strands. Such rapid curing is not disadvantageous connected, but on the contrary, advantageous because, as has been found, these are rapid hardened burrs feed the mass into the mold spaces for the actual strands rules.

Würde man nämlich diese Zwischenräume für die Grate weglassen und voneinander getrennte Formräume für die zu erzeugenden Stränge vorsehen und diese Formräume aus einem Stempelraum beschicken, so ist die Gefahr vorhanden, daß infolge ungleichmäßiger Reibungswiderstände ein Profilstrang sich schneller vorschiebt als der andere, so daß nicht nur Ungleichmäßigkeiten der mechanischen Eigenschaften der Stränge entstehen, sondern es auch vorkommen kann, daß ein Strang schon härtet und den Formraum sperrt, während der andere Strang noch nicht in den Endzustand übergegangen ist. Dies wird durch Vorsehung von schmalen Räumen für Verbindungsgrate vermieden, die den Vorschub der einzelnen Stränge gleichmäßig gestalten infolge der raschen Aushärtung. If you would omit these spaces for the ridges and Provide separate mold spaces for the strands to be produced and these Load mold spaces from a stamp space, there is a risk that as a result uneven frictional resistance a profile strand advances faster than the other so that not only irregularities in mechanical properties of the strands arise, but it can also happen that a strand already hardens and locks the mold space while the other strand is not yet in its final state has passed. This is done by providing narrow spaces for connecting ridges avoided that make the feed of the individual strands evenly as a result the rapid hardening.

Claims (1)

PATENTANSPRUCH: Strangpresse, insbesondere für härtbare Kunstharze, mit einem Stempelraum einfachen Querschnitts und einem Formraum des gewünschten Profils, dadurch gekennzeichnet, daß zur Erzeugung mehrerer Stränge mittels eines einzigen Stempels zwischen den Formräumen für diese Mehrzahl von Strängen schmale Verbindungsräume vorgesehen sind für die Herstellung von Verbindungsgraten. PATENT CLAIM: Extrusion press, especially for curable synthetic resins, with a punch space of simple cross-section and a mold space of the desired one Profile, characterized in that for the production of several strands by means of one narrow single punch between the mold spaces for this plurality of strands Connection spaces are provided for the production of connection ridges.
DEN2095D 1944-10-17 1944-10-17 Extrusion press for the production of strips or the like. Any length made of synthetic resin, especially hardened synthetic resin Expired DE914554C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN2095D DE914554C (en) 1944-10-17 1944-10-17 Extrusion press for the production of strips or the like. Any length made of synthetic resin, especially hardened synthetic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN2095D DE914554C (en) 1944-10-17 1944-10-17 Extrusion press for the production of strips or the like. Any length made of synthetic resin, especially hardened synthetic resin

Publications (1)

Publication Number Publication Date
DE914554C true DE914554C (en) 1954-07-05

Family

ID=7337871

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN2095D Expired DE914554C (en) 1944-10-17 1944-10-17 Extrusion press for the production of strips or the like. Any length made of synthetic resin, especially hardened synthetic resin

Country Status (1)

Country Link
DE (1) DE914554C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085139B (en) * 1958-03-12 1960-07-14 Hoechst Ag Method and device for the production of granules

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085139B (en) * 1958-03-12 1960-07-14 Hoechst Ag Method and device for the production of granules

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