DE1038746B - Multi-roll calender for drawing several sheets of rubber or thermoplastic at the same time - Google Patents
Multi-roll calender for drawing several sheets of rubber or thermoplastic at the same timeInfo
- Publication number
- DE1038746B DE1038746B DET9218A DET0009218A DE1038746B DE 1038746 B DE1038746 B DE 1038746B DE T9218 A DET9218 A DE T9218A DE T0009218 A DET0009218 A DE T0009218A DE 1038746 B DE1038746 B DE 1038746B
- Authority
- DE
- Germany
- Prior art keywords
- roller
- calender
- rubber
- same time
- thermoplastic
- 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.)
- Pending
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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/30—Making multilayered or multicoloured articles
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7888—Means for handling of moving sheets or webs
- B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
- B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
- B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
- B29C65/4835—Heat curing adhesives
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
- B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
Mehrwalzenkalander zum gleichzeitigen Ziehen mehrerer Bahnen aus Kautschuk oder thermoplastischem Kunststoff Die bisher bekannten und in die Praxis der Gummi - und Kunststoffindustrie eingeführten Kalanderbanarten genügen für gewisse Fabrikationszweige nicht mehr den an sie aus wirtschaftlichen Gründen gestellten Forderungen.Multi-roll calender for drawing several sheets of rubber at the same time or thermoplastic plastic The previously known and in practice the rubber - and the plastics industry, the types of calender bars introduced are sufficient for certain branches of manufacture no longer the demands made on them for economic reasons.
Insbesondere lassen sich Folien bzw. Bahnen großer Dicke, wie sie z. B. für Fußbodenbelag benötigt werden, nicht mehr in einem Arbeitsgang auf einem der bisher bekannten Kalander mit einer bis zu fünf Walzen in F-, L-, I-, S- und Z-Anordnung herstellen Von einer gewissen Grenzdicke an sowie für bestimmte Verwendungszwecke können diese Folien bzw. Bahnen nur als sogenannte »Verbundfolien« aus mehreren Einzelfolien aufgebaut werden. Die einzelnen Folien werden auf einem der üblichen Kalander im allgemeinen nacheinander gezogen und dann auf einer besonderen Vorrichtung nach nochmaliger Erhitzung zusammenkaschiert. Man kennt aber auch Anordnungen, bei denen zwei getrennte Folienziehkalander so zueinander angeordnet sind, daß die von den beiden Kalandern ablaufenden Folien unmittelbar nach Verlassen der Ziebwalzen in einer Donbliervorrichtung miteinander vereinigt werden. In particular, films or webs of great thickness, like them z. B. are required for flooring, no longer in one operation on one the previously known calender with one to five rolls in F-, L-, I-, S- and Create a Z-arrangement From a certain limit thickness on and for certain purposes these foils or webs can only be used as so-called "composite foils" made up of several Individual foils are built up. The individual slides are on one of the usual Calenders are generally drawn one after the other and then on a special device laminated together after repeated heating. But you also know arrangements at which two separate film drawing calenders are arranged to each other that the of the films running off the two calenders immediately after leaving the drawing rollers are combined with one another in a Donbliervorrichtung.
Allgemein ergeben sich bei diesen Anordnungen Systeme mit einer relativ großen Anzahl von Arbeitswalzen. Diese Arbeitswalzen ebenso wie deren Lagerung und Antrieb verursachen einen erheblichen Aufwand hinsichtlich der Konstruktion und des Betriebs. In general, these arrangements result in systems with a relative large number of work rolls. These work rolls as well as their storage and Drive cause a considerable effort in terms of construction and of the company.
Die Erfindung bezieht sich auf Mehrwalzenkalander, welche die Möglichkeit bieten, mit einer gegenüber den bekannten Systemen verminderten Anzahl voll Arbeitswalzen gleichzeitig mehrere Folien zu ziehen, wobei Niaterialart bzw. -zusammensetzung, Herstellungstemperatur, Dicke und Breite der einzelnen Folien unterschiedlich sein können. Die so gezogenen Folien können dann unter Ausnutzung des während des Kalandrierens in ihnen angesammelten Wärmevorrats und der von den heißen Walzen ausgehenden Wärmestrahlung auf kürzestem Wege den dem Kalander nachgeschalteten Zusatzaggregaten zugeleitet und dort miteinander zu einer homogenen Verbundfolie vereinigt und gegebenenfalls oberflächenbehandelt (geprägt, bedruckt, satiniert usw.) werden. The invention relates to multi-roll calenders which have the possibility offer, with a reduced number of full work rolls compared to the known systems to pull several foils at the same time, whereby the material type or composition, Manufacturing temperature, thickness and width of the individual films may be different can. The films drawn in this way can then be used using the during calendering accumulated in them and the heat radiation emanating from the hot rollers fed to the additional units downstream of the calender by the shortest route and combined there with one another to form a homogeneous composite film and optionally surface treated (embossed, printed, satined, etc.).
Es besteht jedoch auch die Möglichlieit, die Maschine als Alehrwalzenkalander in dem Sinne zu verwenden, daß die gleichzeitig gezogenen Folien mit den möglichen Unterschieden wie oben geschildert - separat einer Fertigbehandlung in nach geschalteten Zusatzvorrichtungen zugeführt und ein zeln aufgewickelt werden. In diesem Falle leistet die Maschine das gleiche wie eine Gruppe von mehreren Einzelkalandernz die nur je eine - Folie in gleicher Maßqualität liefern. Ein wesentlicher Vorteil des Mehrwalzenkalanders gegenüber einer Gruppe von Einzelkalandern ist neben dem besseren thermischen Wirkungsgrad die mehrfache Ausnutzung einer oder mehrerer Walzen, wodurch die Gesamtzahl der Walzen entsprechend reduziert wird. However, it is also possible to use the machine as an alehr roller calender to use in the sense that the films drawn simultaneously with the possible Differences as described above - separately from a final treatment in downstream Additional devices are supplied and wound up individually. In this case the machine does the same as a group of several individual calenders only one - supply film in the same dimensional quality. A major advantage of the Multi-roll calender versus a group of single calenders is next to the better thermal efficiency the multiple use of one or more rollers, whereby the total number of rollers is reduced accordingly.
Das Neue wird darin gesehen, daß um eine fest gelagerte Walze in zwei aufeinander senkrecht stehenden und sich in der Achse der fest gelagerten Walze schneidenden Ebenen drei Walzenpaare an-'geordnet sind, eine Walze jedes Walzenpaares jeweils der fest gelagerten Walze unmittelbar benachbart ist, die Walzen der Walzenpaare in ihrer Grundstellung parallel zur fest gelagerten Walze ausgerichtet und in ihrem Achsabstand rerstellbar sind und die fest gelagerte Walze mit den unmittelbar benachbarten NValzell der Walzenpaare Einzugsspalte für den zu serarbeitendsen Werkstoff bildet. The novelty is seen in the fact that a firmly mounted roller in two mutually perpendicular and in the axis of the fixed roller three pairs of rollers are arranged on the intersecting planes, one roller of each roller pair each of the permanently mounted roller is immediately adjacent, the rollers of the roller pairs aligned in their basic position parallel to the fixed roller and in their Center distance can be created and the permanently mounted roller with the immediately adjacent NValzell of the roller pairs forms feed gaps for the material to be serarbeitendsen.
Die Abb. 1 und 2 zeigen ein Ausführungsbeispiel eines Mehrwalzenkalanders gemäß der Erfindung. Figs. 1 and 2 show an embodiment of a multi-roll calender according to the invention.
Die um die fest gelagerte Walze 3 in zwei aufeinander senkrecht stehenden und sich in der Achse der Walze 3 schneidenden Ebenen angeordneten Walzenpaare 2,1; 4,5; 6,7 sind in an sich bekannten Gabelkulissen gelagert und können in den den Achsen gemeinsamen Ebenen AJ l bzw. BS verstellt werden, wobei jeder Walzenspalt unabhängig von den übrigen regulierl)ar ist. Jeder Walzenast bildet ein Arbeitssystem für sich, das thermisch und maßtechnisch unabhängig von den zwei übrigen Walzenästen arbeitet, so daß für das Ziehen der einzelnen Folien je zwei Walzenspalte zur Verfügung stehen, was der Eigen- schaft eines Dreiwalzenkalanders üblicher Bauart entspricht. Während jedoch für die gleichzeitige Herstellung von drei Folien bei Verwendung der üblichen Kalander mit je zwei Walzenspalten für das Ziehen der einzelnen Folien insgesamt 3 3 = 9 Walzen erforderlich sind, werden dafür bei der Anordnung gemäß Abh. 1 nur sieben Walzen benötigt. Die am Umfang der Mittelwalze 3 angeordneten Einzugsspalte können durch erstere thermisch derart beeinflußt werden, daß ein Ineinanderlaufen der drei Materialflüsse - auch bei unterschiedlicher Materialzusammensetzung - ausgeschlossen wird. Die Weiterführung der drei einzelnen Folien in den jeweils zugeordneten Walzenast ist somit zwangläufig. Die vorbeschriebenen Einzugsspalte 8, 9, 10 sind teils unmittelbar, 8. teils durch Fenster 11, 12 in den Seitenständern des Kalanders zugänglich, 9, 10, und ermöglichen eine gleichmäßige und zuverlässige Beschickung. Die Beschickung der Einzugs-spalte 9, 10 durch Fenster 11, 12 macht es möglich, die Folien 13 und 15 ohne große Umleitungen mit der Folie 14 zusammenzuführen. Bei den innenliegenden Spalten 9, 10 kann eine automatische Beschickung, etwa durch ein Band mit Abstreifblech, zweckmäßig sein. Im iibrigen hängt die optimale Schräglage der Walzenanordnung wesentlich von der Art der Beschickung ab. The one around the fixed roller 3 in two mutually perpendicular and roller pairs 2, 1 arranged in the axis of the roller 3 intersecting planes; 4.5; 6.7 are stored in known fork slides and can in the Axes common planes AJ l or BS are adjusted, each nip is independent of the other regulators. Each roller branch forms a work system on its own, thermally and in terms of dimensions, independent of the two other roller branches works so that two roller gaps are available for pulling the individual foils stand what the own the shaft of a three-roll calender is more common Type corresponds. However, while for the simultaneous production of three foils when using the usual calenders, each with two nips for pulling the individual foils a total of 3 3 = 9 rollers are required for this at the Arrangement according to Dep. 1 only requires seven rollers. The one on the circumference of the central roller 3 arranged infeed gaps can be thermally influenced by the former in such a way that that the three material flows merge - even with different material compositions - is excluded. The continuation of the three individual slides in each assigned roller branch is therefore inevitable. The above-described indentation column 8, 9, 10 are partly direct, 8. partly through windows 11, 12 in the side stands of the calender accessible, 9, 10, and allow a smooth and reliable Feed. The feed gaps 9, 10 are fed through windows 11, 12 it is possible to bring the foils 13 and 15 together with the foil 14 without major diversions. In the case of the internal columns 9, 10, automatic loading, for example through a tape with a scraper plate, may be useful. Otherwise, the optimal incline depends the roller arrangement depends significantly on the type of loading.
Sofern der Kalander nicht nur zum gleichzeitigen Ziehen mehrerer Einzelfolien, sondern zur Herstellung von Verbundfolien verwendet werden soll, werden die Folien unter Ausnutzung der Eigenhitze und der von den Kalanderwalzen ausgehenden Wärmestrahlung über (nicht dargestellte) Umlenkwalzen in den Vereinigungsspalt 16 zwischen den Doublierwalzen 17, 18 geführt (Abb. 2). Die Verbundfolie 19 passiert anschließend eine Prägevorrichtung 20 sowie eine Kühlvorrichtung 21, um dann zur Aufwicklung 22 zu gelangen. Unless the calender is only used to pull several at the same time Single foils, but to be used for the production of composite foils the foils using their own heat and that emanating from the calender rolls Thermal radiation via deflection rollers (not shown) into the merging gap 16 guided between the doubling rollers 17, 18 (Fig. 2). The composite film 19 happens then an embossing device 20 and a cooling device 21, in order then to Winding 22 to arrive.
Bei dieser Betriebsart des Kalanders kann es notwendig sein, eine oder zwei der Einzelfolien 13, 14, 15 je einen dritten Walzenspalt passieren zu lassen. In this mode of operation of the calender, it may be necessary to use a or two of the individual foils 13, 14, 15 to let a third nip pass each time.
Dies kommt beispielsweise bei der Herstellung von Fußbodenhelag in Frage, dessen Deckschicht eine besondere Behandlung erfahren muß.This comes in, for example, in the manufacture of floor covering Question whose top layer needs special treatment.
Der Kalander kann selbstverständlich statt als Dreifach-Kalander auch als Zweifach-Kalander arbeiten, d. h. in nur zwei Walzenspalten - vorzugsweise den Walzenspalten 8 und 10 - beschickt werden. The calender can of course be used instead of a triple calender also work as a double calender, d. H. in just two nips - preferably the nips 8 and 10 - are charged.
PATENTANSI'ROCHE: 1. Mehrwalzenkalander zum gleichzeitigen Ziehen mehrerer Bahnen aus Kautschuk oder thermoplastischem Kunststoff, dadurch gekennzeichnet, daß um eine fest gelagerte Walze (3) in zwei aufeinander senkrecht stehenden und sich in der Achse der fest gelagerten Walze (3) schneidenden Ebenen drei Walzenpaare (2,1; 4,5; 6,7) angeordnet sind, eine Walze jedes Walzenpaares jeweils der fest gelagerten Walze (3) unmittelbar benachbart ist, die Walzen der Walzenpaare in ihrer Grundstellung parallel zur fest gelagerten Walze ausgerichtet und in ihrem Achsabstand verstellbar sind und die fest gelagerte Walze (3) mit den unmittell>ar benachbarten Walzen (2, 4, 6) der Walzenpaare Einzugsspalte (8, 9, 10) für den zu verarbeitenden Werkstoff bildet. PATENTANSI'ROCHE: 1. Multi-roll calender for simultaneous drawing several webs made of rubber or thermoplastic material, characterized in that that around a fixed roller (3) in two mutually perpendicular and three pairs of rollers in the axis of the fixed roller (3) intersecting planes (2.1; 4.5; 6.7) are arranged, one roller of each roller pair in each case the fixed mounted roller (3) is immediately adjacent, the rollers of the roller pairs in their Basic position aligned parallel to the fixed roller and at its center distance are adjustable and the fixed roller (3) with the immediately> ar neighboring Rollers (2, 4, 6) of the roller pairs feed slot (8, 9, 10) for the to be processed Material forms.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET9218A DE1038746B (en) | 1954-03-19 | 1954-03-19 | Multi-roll calender for drawing several sheets of rubber or thermoplastic at the same time |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET9218A DE1038746B (en) | 1954-03-19 | 1954-03-19 | Multi-roll calender for drawing several sheets of rubber or thermoplastic at the same time |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1038746B true DE1038746B (en) | 1958-09-11 |
Family
ID=7546058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET9218A Pending DE1038746B (en) | 1954-03-19 | 1954-03-19 | Multi-roll calender for drawing several sheets of rubber or thermoplastic at the same time |
Country Status (1)
Country | Link |
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DE (1) | DE1038746B (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1866807A (en) * | 1929-06-20 | 1932-07-12 | Gillette Rubber Co | Method of and apparatus for making four-ply stock on three-roll calenders |
DE665680C (en) * | 1938-10-01 | Kabelwerke Akt Ges Deutsche | Apparatus for producing insulating tape or the like with the aid of a four-roll calender | |
DE722711C (en) * | 1937-12-11 | 1942-07-18 | Siemens Ag | Process and device for lengthwise covering of electrical lines |
-
1954
- 1954-03-19 DE DET9218A patent/DE1038746B/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE665680C (en) * | 1938-10-01 | Kabelwerke Akt Ges Deutsche | Apparatus for producing insulating tape or the like with the aid of a four-roll calender | |
US1866807A (en) * | 1929-06-20 | 1932-07-12 | Gillette Rubber Co | Method of and apparatus for making four-ply stock on three-roll calenders |
DE722711C (en) * | 1937-12-11 | 1942-07-18 | Siemens Ag | Process and device for lengthwise covering of electrical lines |
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