DE712957C - Self-sealing stuffing box seal for vulcanizing devices - Google Patents

Self-sealing stuffing box seal for vulcanizing devices

Info

Publication number
DE712957C
DE712957C DER92944D DER0092944D DE712957C DE 712957 C DE712957 C DE 712957C DE R92944 D DER92944 D DE R92944D DE R0092944 D DER0092944 D DE R0092944D DE 712957 C DE712957 C DE 712957C
Authority
DE
Germany
Prior art keywords
stuffing box
sealing
cable
self
rubber body
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
DER92944D
Other languages
German (de)
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
Application granted granted Critical
Publication of DE712957C publication Critical patent/DE712957C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/06Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam for articles of indefinite length
    • B29C35/065Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam for articles of indefinite length in long tubular vessels
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06Insulating conductors or cables
    • H01B13/14Insulating conductors or cables by extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00Use of unspecified rubbers as moulding material

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Bodies (AREA)

Description

Selbstdichtende Stopfbüchsendichtung für Vulkanisiervorrichtungen Bei Vorrichtungen zum Vulkanisieren unbeschränkter Längen gummisolierter Kabel o. dgl. ist es erforderlich, die unter hohem Druck stehende Vulkanisierkammer für das durchlaufenden gummiisolierte Kabel an den Durchtrittsstellen des Kabels mittels einer selbstdichtenden Stopfbüchse abzudichten. Zu diesem Zweck werden selbstdichtende Stopfbüchsendichtungen verwenet, die aus einem durch den Vulkanisationsdruck gegen das Kabel gedrückten, mit einem Flansch versehenen elastischen Gummikörper bestehen, der zweckmäßig kegelförmig zugespitzt ist. Bei den bisher verwendeten Stopfbüchsendichtungen dieser Art entstand nun regelmäßig der Übelstand, daß durch den unter hohem Druck stehenden Dichtungskörper an dem Kabel Formänderun gen hervorgerufen wurden, die dadurch entstanden, daß das zu vulkanisierunde plastische Material des Kabels durch den hohen Anpreßdruck des Gummikörpers eingeschnürt wurde.Self-sealing stuffing box gasket for vulcanizing devices In the case of devices for vulcanizing unlimited lengths of rubber-insulated cables or the like. Like. It is necessary, the high pressure vulcanizing chamber for the continuous rubber-insulated cable at the points where the cable passes through a self-sealing stuffing box. For this purpose they are self-sealing Stuffing box seals used, which are made of a by the vulcanization pressure against the cable consist of pressed, flanged elastic rubber bodies, which is expediently tapered. With the stuffing box seals used up to now This kind of problem arose as a result of being under high pressure standing sealing body on the cable Formänderun conditions were caused, the caused by the fact that the plastic material of the cable to be vulcanized through the high contact pressure of the rubber body was constricted.

Wenn diese unerwünschten Verformungen des Vulkanisiergutes vermieden werden sollen, so darf bei der in Abb. I der beiliegenden Zeichnung veranschaulichten Anordnung der spezifische Druck zwischen dem durch die Stopfbüchsendichtung hindurchgehenden Körper I und der Dichtungseinlage 2 das Maß des innerhalb der Vulkanisierkammer 3 herrschenden Druckes nicht übersteigen. If these undesirable deformations of the vulcanized material are avoided may be illustrated in Fig. I of the accompanying drawing Arrangement of the specific pressure between that passing through the gland packing Body I and the sealing insert 2 the dimension of the inside the vulcanizing chamber 3 do not exceed the prevailing pressure.

Der zum Abdichten der Stopfbüchse erforderliche Druck wird durch den in der Vulkanisierkammer 3 herrschenden Druck erzeugt, der die elastische, z. B. aus Gummi bestehende Dichtungseinlage 2 gegen den durchgehenden Körper I, d. b. das zu vulkanisierende gummiisolierte Kabel preßt. Der dabei entstehende spezifische Druck zwischen den erwähnten Teilen ist höchstens gleich dem in Ider Kammer 3 herrschenden Druck, denn das Anziehen der hohlen Stopfbüchsenschraube 4 dient lediglich zum Abdichten der Kammer 3 gegen die Außenluft und ist ohne Einfluß auf den Abdichtungsdruck, der von der Dichtungseinlage 2 auf das durchgehende Kabel 1 ausgeübt wird. The pressure required to seal the stuffing box is provided by the pressure prevailing in the vulcanizing chamber 3 generates the elastic, z. B. made of rubber sealing insert 2 against the continuous body I, d. b. the rubber-insulated cable to be vulcanized is pressed. The resulting specific Pressure between the parts mentioned is at most equal to that prevailing in chamber 3 Pressure, because the tightening of the hollow stuffing box screw 4 is only used for sealing the chamber 3 against the outside air and has no influence on the sealing pressure, which is exerted by the sealing insert 2 on the continuous cable 1.

Wird nun die hohle Stopfbüchsenschraube 4 sehr kräftig angezogen, so quillt das zwischen Stopfbüchsenkörper 7 und Unterlagscheibe 5 befindliche Dichtungsmaterial 2 im Bereiche des durch die Stopfbüchsenschraube 4 eingespannten Flansches derart nach innen, daß sich ein Wulst bildet, der einen ungewöhnlich starken Drucl; auf das noch plastische Vulkanisiergut ausübt und dieses einschnürt. Es bereitete daher regelmäßig Schwierigkeiten, gummiisolierte Kabel fortlaufend in einer Vulkanisiervorrichtung der geschilderten Art einwandfrei zu behandeln. If the hollow stuffing box screw 4 is now tightened very firmly, so the sealing material located between the stuffing box body 7 and washer 5 swells 2 in the region of the flange clamped by the stuffing box screw 4 in this way inward, that a bulge forms, which is unusual strengthen Pressure; exerts on the still plastic vulcanized material and constricts it. It prepared therefore regularly difficulties, rubber-insulated cables continuously in a vulcanizing device of the type described to be handled properly.

Um nun den geschilderten Übelstand zu vermeiden, ist erfindungsgemäß am inneren. Umfang des Gummikörpers 2 im Bereiche des durch die Stopfbüchsenschraube 4-eingespannten Flansches gleichachsig zur Durchgangsöffnung der Dichtung ein starrer, zylinderförmiger Entlastungsring 6 angeordnet. Dieser Ring 6 ist in der Lage, den vorerwähnten schädlichen, nach innen gerichteten radialen Druck aufzunehmen; dadurch wird die Wulstbildung des Dichtungsmaterials an der eingeklemmten Stelle, d. h. im Bereiche des durch die Stopfbüchsenschraube eingespannten Flansches wirksam verhindert. In order to avoid the drawback described, is according to the invention on the inside. Perimeter of the rubber body 2 in the area of the stuffing box screw 4-clamped flange equiaxed to the passage opening of the seal a rigid, cylindrical relief ring 6 arranged. This ring 6 is able to absorb the aforementioned harmful inward radial pressure; through this the beading of the sealing material at the pinched point, i.e. H. effectively prevented in the area of the flange clamped by the stuffing box screw.

Um eine leichte Auswechselbarkeit der Dichtungseinlage 2 zu erreichen, wird die hohle Schraube 4 sowie auch die Unterlagscheibe 5 zweckmäßig geteilt ausgeführt, wie dies in Abb. 2 der Zeichnung dargestellt ist, die einen Querschnitt nach der Linie A-B der Abb. I zeigt. Durch diese Teilung ist das Einsetzen der auf das durchgehende Kabel 1 0. dgl. aufgeschobenen Vorratsdichtungseinlage 2a an Stelle der gegebenenfalls beschädigten Dichtungseinlage 2 ohne großen Zeitverlust ermöglicht. In order to make the sealing insert 2 easy to replace, the hollow screw 4 as well as the washer 5 is expediently divided, as shown in Fig. 2 of the drawing, which is a cross-section according to the Line A-B of Fig. I shows. This division makes the onset of the continuous Cable 1 0. The like. Slid-on storage seal insert 2a in place of the optionally Damaged sealing insert 2 allows without much loss of time.

Claims (2)

@ PATENTANSPRÜCHE: I. Selbstdichtende Stopfbüchsendichtung für Vulkanisiervorrichtungen zum Abdichten der unter hohem Druck stehenden @Vulkanisierkammer für durchlaufende gummiisolierte Kabel an den Durchtrittsstelien des Kabels, bestehend aus einem durch den Vulkanisationsdruck gegen das Kabel gedrückten. mit einem Flansch versehenen elastischen und zweckmäßig kegelförmig zugespitzten Gummikörper, dadurch geliennzeichnet, daß am inneren Umfang des Gummikörpers (2) im Bereich des durch die Stopfbüchsenschraube (4) eingespannten Flansches gleichachsig zur Durchgangsöffnung der Dichtung ein starrer. zylinderförmiger Entlastungsring (6) angeordnet ist. @ PATENT CLAIMS: I. Self-sealing gland packing for vulcanizing devices for sealing the vulcanizing chamber under high pressure for continuous rubber-insulated cable at the passages of the cable, consisting of a through pressed the vulcanization pressure against the cable. provided with a flange elastic and appropriately conically tapered rubber body, thereby marked, that on the inner circumference of the rubber body (2) in the area of the stuffing box screw (4) clamped flange coaxially to the passage opening of the seal more rigid. cylindrical relief ring (6) is arranged. 2. Stopfbüchsendichtung nach An -spruch 1, dadurch gekennzeichnet, daß die zum Einklemmen des Gummikörpers (2) dienende Stopfbüchsenschraube (4) und die zugehörige Unterlagscheibe (5) zwecks leichter Auswechslung des gummikörpers geteilt wird. 2. Stuffing box seal according to claim 1, characterized in that that the stuffing box screw (4) and used to clamp the rubber body (2) the associated washer (5) for easy replacement of the rubber body is shared.
DER92944D 1934-03-27 1935-03-27 Self-sealing stuffing box seal for vulcanizing devices Expired DE712957C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS712957X 1934-03-27

Publications (1)

Publication Number Publication Date
DE712957C true DE712957C (en) 1941-10-29

Family

ID=5455044

Family Applications (1)

Application Number Title Priority Date Filing Date
DER92944D Expired DE712957C (en) 1934-03-27 1935-03-27 Self-sealing stuffing box seal for vulcanizing devices

Country Status (1)

Country Link
DE (1) DE712957C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1051927B (en) * 1954-10-18 1959-03-05 British Insulated Callenders Gland assembly for continuous cable vulcanizing devices
DE1051926B (en) * 1954-10-18 1959-03-05 British Insulated Callenders Gland assembly for continuous cable vulcanizing devices
EP3270479A1 (en) * 2016-07-15 2018-01-17 Maschinenbau Scholz Gmbh & Co. Kg Curing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1051927B (en) * 1954-10-18 1959-03-05 British Insulated Callenders Gland assembly for continuous cable vulcanizing devices
DE1051926B (en) * 1954-10-18 1959-03-05 British Insulated Callenders Gland assembly for continuous cable vulcanizing devices
EP3270479A1 (en) * 2016-07-15 2018-01-17 Maschinenbau Scholz Gmbh & Co. Kg Curing device

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