EP0019077A1 - Transportrolle für Industrieöfen, insbesondere für die keramische Dachziegel-Industrie - Google Patents

Transportrolle für Industrieöfen, insbesondere für die keramische Dachziegel-Industrie Download PDF

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Publication number
EP0019077A1
EP0019077A1 EP80101839A EP80101839A EP0019077A1 EP 0019077 A1 EP0019077 A1 EP 0019077A1 EP 80101839 A EP80101839 A EP 80101839A EP 80101839 A EP80101839 A EP 80101839A EP 0019077 A1 EP0019077 A1 EP 0019077A1
Authority
EP
European Patent Office
Prior art keywords
core
roller
cover
conveyance
products
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.)
Withdrawn
Application number
EP80101839A
Other languages
English (en)
French (fr)
Inventor
Uberto Mori
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.)
Ing U Mori & C -Spa
Original Assignee
Ing U Mori & C -Spa
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 Ing U Mori & C -Spa filed Critical Ing U Mori & C -Spa
Publication of EP0019077A1 publication Critical patent/EP0019077A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/02—Skids or tracks for heavy objects
    • F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails

Definitions

  • the invention concerns a roller for the conveyance of products in kilns, particularly in the ceramic tile industry, that is to say a roller driven to rotate and destined to form together with other analogous rollers arranged side by side a belt for the conveyance of a product such as - to give a not limiting example - ceramic tiles along the kiln during their heat-treatment at high temperature
  • the prior state of art comprises conveyor rollers in me- t allic as well as in ceramic material, heat resistant and therefore called “refractory”: metallic rollers have a low strain resistance because of flexure at high temperatures, however they are resistant rapid temperature changes, not liable to tacking with the material of the products to be treated and capable of maintaining unaltered the state of their surfaces; ceramic rollers have a good resistance to flexure and strain, but not to rapid temperature changes and being liable to tack to materials with coefficients of expansion similar to their own so that their surfaces often are irregular because of the losing and/or gaining of par- t icles, which change the dragging
  • the invention resolves the above technical problem by adopting a roller formed by an outer covering of metallic material suitable to resist rapid temperature changes and to maintain its surface unaltered, and an internal core, of any shape whatsoever, of ceramic material resistant to the high temperatures of the kiln as well as to stress of flexure and strain in general of the core ; due to the action of the weight of material to be transported and to its own weight at said high temperatures,
  • the indications are as follows: 1 indicates the core of the roller in refractory ceramic material; 2 is the cover in refractory steel, which surrounds it; 3 indicates a layer of sliding material interposed between 1 and 2 and consisting of a bonding elastic agent or of incoherent material or, in any case, of material with such an expansion coefficient as to make the expansion of the two elements independent one from the other; 4 indicates dragging notches made at the ends of the cover 2 and protruding compared to the end of the core 1; 5 is a tubular core in refractory ceramic material; 6 indicates a refractory metallic cover consist ing of sections arranged side by side; 7 indicates a tubu lar core of refractory ceramic material in sections arran 2 ed side by side; 8 is a tubular core of refractory ceramic material composed by sections fitted one in the other; 9 and 10 are respectively a tubular refractory core with irregular outer surface and the corresponding refractory metallic cover obtained by fusion; 11 is a refrac
  • the core 1 serves as a support insensitive to the stresses of flexure even at the highest temperatures, whilst the cover 2 (or an other one) maintains its cylindrical shape with rectilinear axis
  • the details of execution and the ends of the roller suitable to connect with the supporting and dragging elements may be different from those indicated, but must be technically equivalent with out leaving the juridical dominion of this invention
  • the shape of the outer surface of the cover 2 of the roller might be non-cylindrical considering the fact that the surface itself may have particular shapes suitable to avoid differences of the advancement of the various rows of parallel tiles,
  • the presence of the metallic cover 2 contributes to make the thermal shock within the core 1 less violent.
  • Such a metallic cover may be of different thicknesses, varying from a few micron up to a centimeter and more, according to the requirements
  • the layer 3 of Figure 2 might be formed by more than one layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Tunnel Furnaces (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
EP80101839A 1979-04-13 1980-04-05 Transportrolle für Industrieöfen, insbesondere für die keramische Dachziegel-Industrie Withdrawn EP0019077A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO1979U28946U IT7928946U1 (it) 1979-04-13 1979-04-13 Rullo per il convogliamento di prodotti nei forni, particolarmente nella ceramica
IT2894679U 1979-04-13

Publications (1)

Publication Number Publication Date
EP0019077A1 true EP0019077A1 (de) 1980-11-26

Family

ID=11224931

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80101839A Withdrawn EP0019077A1 (de) 1979-04-13 1980-04-05 Transportrolle für Industrieöfen, insbesondere für die keramische Dachziegel-Industrie

Country Status (3)

Country Link
EP (1) EP0019077A1 (de)
AR (1) AR221640A1 (de)
IT (1) IT7928946U1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995033965A1 (fr) * 1994-06-08 1995-12-14 Nuova Sirma S.P.A. Rouleaux ceramiques renforces pour fours
WO2008150205A1 (en) * 2007-06-05 2008-12-11 Sandvik Intellectual Property Ab A roller hearth furnace and roller therefore

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1834304A (en) * 1927-12-31 1931-12-01 United Eng Foundry Co Heating furnace
FR782011A (fr) * 1933-11-15 1935-05-27 Perfectionnements aux rouleaux pour fours à transporteurs
US2788957A (en) * 1953-03-30 1957-04-16 Drever Co Refractory roller furnace conveyor system
DE966177C (de) * 1947-08-06 1957-07-11 Gas Machinery Company Walze zum Foerdern von Werkstuecken in industriellen Waermoefen
GB1390597A (en) * 1973-03-20 1975-04-16 Schmidt Edelstahlwerk Clemens Furnace transport roller

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1834304A (en) * 1927-12-31 1931-12-01 United Eng Foundry Co Heating furnace
FR782011A (fr) * 1933-11-15 1935-05-27 Perfectionnements aux rouleaux pour fours à transporteurs
DE966177C (de) * 1947-08-06 1957-07-11 Gas Machinery Company Walze zum Foerdern von Werkstuecken in industriellen Waermoefen
US2788957A (en) * 1953-03-30 1957-04-16 Drever Co Refractory roller furnace conveyor system
GB1390597A (en) * 1973-03-20 1975-04-16 Schmidt Edelstahlwerk Clemens Furnace transport roller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995033965A1 (fr) * 1994-06-08 1995-12-14 Nuova Sirma S.P.A. Rouleaux ceramiques renforces pour fours
FR2721098A1 (fr) * 1994-06-08 1995-12-15 Nuova Sirma Spa Rouleaux céramiques pour fours à base d'oxydes renforcés par un élément de renforcement à haut module d'élasticité à chaud.
WO2008150205A1 (en) * 2007-06-05 2008-12-11 Sandvik Intellectual Property Ab A roller hearth furnace and roller therefore

Also Published As

Publication number Publication date
IT7928946U1 (it) 1980-10-13
AR221640A1 (es) 1981-02-27
IT7928946V0 (it) 1979-04-13

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB IT NL

17P Request for examination filed

Effective date: 19810428

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19831116

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MORI, UBERTO