EP0199713B1 - Verfahren zum Bespannen einer Trommel mit einem endlosen, dünnwandigen Metallmantel - Google Patents

Verfahren zum Bespannen einer Trommel mit einem endlosen, dünnwandigen Metallmantel Download PDF

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Publication number
EP0199713B1
EP0199713B1 EP86890104A EP86890104A EP0199713B1 EP 0199713 B1 EP0199713 B1 EP 0199713B1 EP 86890104 A EP86890104 A EP 86890104A EP 86890104 A EP86890104 A EP 86890104A EP 0199713 B1 EP0199713 B1 EP 0199713B1
Authority
EP
European Patent Office
Prior art keywords
drum
band
tensioning
welding
casting
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
EP86890104A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0199713A3 (en
EP0199713A2 (de
Inventor
Rupert Dipl.-Ing. Harreither
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.)
Berndorf Band GmbH
Original Assignee
Berndorf Band GmbH
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 Berndorf Band GmbH filed Critical Berndorf Band GmbH
Publication of EP0199713A2 publication Critical patent/EP0199713A2/de
Publication of EP0199713A3 publication Critical patent/EP0199713A3/de
Application granted granted Critical
Publication of EP0199713B1 publication Critical patent/EP0199713B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D49/00—Sheathing or stiffening objects
    • B21D49/005—Hollow objects

Definitions

  • the invention relates to a method and a device for covering a film casting drum or a film casting wheel with an endless thin-walled metal jacket to form a casting surface.
  • the invention is therefore based on the object of applying a tightly tensioned metal jacket to the surface of a casting drum in the working position of a film casting machine.
  • This object for covering a film casting drum with an endless thin-walled metal jacket to form a casting surface is achieved according to the invention by a method which is characterized in that a metal strip is first rolled up on the casting drum and is continuously pressed onto the casting drum until it is the casting drum encloses and the tape ends overlap, then the metal tape is placed under longitudinal tensile stress and in this state is cut, welded and reworked at the point provided for welding the tape ends.
  • the metal band can be rolled up onto the drum and continuously fastened with brackets on both edges of the drum circumference until the ends of the band are overlapped, then stepwise tension elements on the drum and metal band, preferably from the side opposite the overlap point fastened and pressed apart by means of an interposed tensioning device, the band part in between being brought under a predetermined tension until the overlap point is reached, finally the band ends overlapping there are cut through and, after smoothing and retensioning the band ends, are welded and closed to close the gap.
  • tensioning belts are rolled on the outside and tensioned after the wrap is closed, the metal band also being tensioned by friction.
  • a drum for example a casting wheel with a diameter of 4.8 m, is to be covered with a 1 mm thick, 1.2 m wide stainless steel belt with a defect-free, high-gloss polished surface required for the casting of the triacetate raw film.
  • a groove 9 is milled into the drum a, approximately 10 to 12 mm deep and 40 mm wide (see FIG. 9). If the welding parameters (welding current) allow it, this groove can be omitted.
  • threaded holes i are drilled in the axial direction in both end faces above the shoulder h of the drum a (FIG. 11).
  • the metal band b is about 600 mm longer than the circumference of the drum a.
  • the width of the band b is chosen so that it projects to the left and right of the drum a by 30 mm beyond the drum width (FIG. 12).
  • the surface to be placed on the outside, on which the product is later poured, is provided with a suitable protective film.
  • These protruding edges have corresponding holes k at certain intervals, which are used to fasten the clamping elements c by means of screws.
  • These clamping elements c are designed so that they can slide along the shoulders h of the drum a (Fig. 12).
  • the metal strip b wound on a transport spool is placed in a roll-off stand e and the end of the strip is fastened to the drum a with a clip (FIG. 2).
  • the metal band b is placed on the circumference of the drum and clipped onto the drum a at the intended intervals on both band edges by means of the tensioning elements c (FIG. 3).
  • the next step is to do the same with the piece of tape viewed counterclockwise (drawn as episode 2).
  • stage of tension (episode 3) is again clockwise, stage (episode 4) is again counterclockwise
  • the hydraulic press is always placed between the tensioning element d screwed onto the drum a and the tensioning element c fastened to the edge of the belt and, after the tensioning of the respective band piece, is replaced by the tension locks f.
  • This hydraulic assembly clamping system has the advantage that the tension can be applied in a controllable manner.
  • the drum a and thus the belt b lying thereon are brought to approximately the working temperature and the same tensioning processes, starting from the first tensioning step (sequence 1), as described in the previous paragraph, are repeated.
  • the band b is fixed on both sides of the future cut and cut with a side milling cutter t which is moved linearly in its own rail guide (FIG. 7).
  • the milling cut must be smoothed at both ends of the belt (Fig. 8) and the oxide layer of the belt surface should be sanded down on both sides in the usual way, each by about 10 mm.
  • the two ends of the band lie snugly against one another. After milling, the gap is slightly more than the milling cutter thickness.
  • the milling gap is closed by again heating the drum and the belt to a higher temperature level and carrying out a further “retensioning" of the belt, as already described, at this temperature.
  • the continuous welding is carried out using the TIG plasma process or another suitable welding process.
  • a copper bar 1 which is provided with a welding groove m and projects beyond the drum surface by approximately 1/10 mm, is inserted into the groove 9 (FIG. 9). If no groove 9 has been milled, a correspondingly thin underlay strip is placed between belt b and drum a.
  • Hold-down devices n press the two strip ends lying close together to the copper bar 1.
  • the welding is carried out with precisely set welding parameters and electromotor-controlled detector guide p (FIG. 9).
  • the drum radius can also be precisely maintained in the area of the weld seam (FIG. 10).
  • the surface of the welding zone is matched to the rest of the strip surface by mechanical processing, for example by grinding and subsequent polishing.
  • the drum a does not have a suitable reversible drive, it can be moved back and forth by a crank drive x to process the weld seam area, which considerably shortens the processing time (FIG. 23).
  • the last step is trimming the tape, i.e. the excess tape edges are cut away using a cutting disc, milling cutter or turning tool and the tape edges are deburred. If the protruding tape edges do not interfere, trimming can be omitted.
  • the invention is not limited to the illustrated embodiment.
  • the drum, a drum also being understood as a wheel, the peripheral surface of which serves as a working surface, can also be rolled over the belt; instead of the projections, grooves on the side can also be used to guide the tensioning elements.
  • clamps or bonds can also be used for fastening, and screw spindles or wedges can also be used as clamping devices instead of hydraulics.
  • tensioning straps o are used, which are looped over the drum a with the metal band b and then placed under tension, whereby they transmit this tension to the band b.
  • the condition for this is that the coefficient of friction between metal band b and drum a is smaller than the coefficient of friction between the tension belt and metal band. This can be done by choosing a suitable material pairing or by increasing or avoiding linings or intermediate layers.
  • a tensioning frame v is placed at the end overlap and the tension is applied to the tensioning straps and the metal band b by a suitable tensioning mechanism u, which acts between tensioning frame v and the end pieces r of the tensioning straps o (FIG. 18).
  • the clamping frame v which rests on the frame w of the casting machine, also has a working slide z and a feed gear y for the processing tools, such as milling cutters, welding torches and grinders (FIGS. 21 to 23).
  • a crank drive x (FIG. 23) can also be used to move the casting wheel a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Continuous Casting (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Prostheses (AREA)
EP86890104A 1985-04-15 1986-04-15 Verfahren zum Bespannen einer Trommel mit einem endlosen, dünnwandigen Metallmantel Expired - Lifetime EP0199713B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1116/85 1985-04-15
AT0111685A AT388687B (de) 1985-04-15 1985-04-15 Verfahren und vorrichtung zum bespannen einer um eine achse drehbar gelagerte trommel bzw. eines rades mit einem endlosen duennwandigen metallmantel

Publications (3)

Publication Number Publication Date
EP0199713A2 EP0199713A2 (de) 1986-10-29
EP0199713A3 EP0199713A3 (en) 1988-08-03
EP0199713B1 true EP0199713B1 (de) 1991-08-14

Family

ID=3506924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86890104A Expired - Lifetime EP0199713B1 (de) 1985-04-15 1986-04-15 Verfahren zum Bespannen einer Trommel mit einem endlosen, dünnwandigen Metallmantel

Country Status (8)

Country Link
US (1) US4744503A (enrdf_load_stackoverflow)
EP (1) EP0199713B1 (enrdf_load_stackoverflow)
JP (1) JPS61289979A (enrdf_load_stackoverflow)
CN (1) CN1009714B (enrdf_load_stackoverflow)
AT (1) AT388687B (enrdf_load_stackoverflow)
CA (1) CA1264116A (enrdf_load_stackoverflow)
DD (1) DD247861A5 (enrdf_load_stackoverflow)
DE (1) DE3680814D1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2152293C1 (ru) * 1998-08-03 2000-07-10 Российский Федеральный Ядерный Центр - Всероссийский Научно-Исследовательский Институт Экспериментальной Физики Станок для изготовления армированных пластин

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29701557U1 (de) * 1997-01-30 1997-05-22 Berndorf Band Ges. M.B.H., Berndorf Gießrad mit einer Trommel aus Gußeisen
AU2004228662A1 (en) * 2003-04-02 2004-10-21 Monosol, Llc Surfactant applicator for solution casting apparatus and method of producing a film
US6943689B2 (en) * 2003-11-24 2005-09-13 B&G Plastics, Inc. Electronic article surveillance marker assembly
KR101378022B1 (ko) 2007-06-04 2014-03-25 한라비스테온공조 주식회사 차량 공조장치용 압축기의 다단풀리 제조방법
KR101663307B1 (ko) * 2014-11-21 2016-10-06 두산중공업 주식회사 주행적치대를 이용한 대형쉘 운반용 행거의 공장내 적치 시스템
CN105945467B (zh) * 2016-05-10 2018-01-09 成都熊谷加世电器有限公司 一种管道内焊机焊接单元转动搭接控制系统
CN110757094B (zh) * 2019-10-31 2020-11-24 中航飞机起落架有限责任公司 一种筒形阶梯薄壁件零件的车削方法

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US148385A (en) * 1874-03-10 Improvement in machines for upsetting tires
US791693A (en) * 1904-10-06 1905-06-06 Samuel Nelson House Cold-tire-shrinking machine.
US890587A (en) * 1905-10-27 1908-06-09 J J Slack Tire-shrinker.
US2629354A (en) * 1949-05-25 1953-02-24 Babcock & Wilcox Co Apparatus for making banded pressure vessels
GB1060987A (en) * 1964-06-10 1967-03-08 Gustin Bacon Mfg Co Method and apparatus for wrapping foil around a tubular duct
DE1615437A1 (de) * 1967-01-05 1970-11-05 Josef Steinbichler Mit einem Schweissbalken ausgeruestete Maschine zum Schweissen rohrfoermig langgestreckter Hohlprofile
US3732614A (en) * 1970-09-10 1973-05-15 Emf Inc Method for making motor shells and the like
US3978704A (en) * 1975-08-01 1976-09-07 Rudolf Naumovich Fridman Cone shell making machine
US4121747A (en) * 1976-02-09 1978-10-24 Anchortank, Inc. Storage tank construction procedures
DD128902A1 (de) * 1976-12-30 1977-12-14 Heinz Hammer Vorrichtung zur herstellung mehrlagiger zylindrischer bauteile
US4216896A (en) * 1977-02-11 1980-08-12 Santa Fe International Corporation Automatic pipe welding apparatus and method
JPS5413414A (en) * 1977-06-30 1979-01-31 Kubota Ltd Medium cr low ni stainless cast steel of high corrosion resistance and high strength
JPS54109059A (en) * 1978-01-31 1979-08-27 Nippon Koki Kk Thin metal plate covering on rod material
US4177914A (en) * 1978-02-06 1979-12-11 Midcon Pipeline Equipment Co. Rotary internal pipe clamp apparatus
US4249406A (en) * 1978-09-05 1981-02-10 Anderson Frohman C Line pipe forming apparatus and method
FR2442100A2 (fr) * 1978-11-27 1980-06-20 Saurin Emmanuel Procede de fabrication de corps tubulaires, notamment de boites de conserves, et dispositif pour l'execution de ce procede
JPS5843888U (ja) * 1981-09-16 1983-03-24 辰己　有 複合管の製造装置
FI68999C (fi) * 1983-06-20 1985-12-10 Kone Oy Foerfarande foer fastsaettning av baerkransar omkring en trumma med stor diameter
JPS60206563A (ja) * 1984-03-30 1985-10-18 Mitsubishi Heavy Ind Ltd クラツド円筒胴体製造法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2152293C1 (ru) * 1998-08-03 2000-07-10 Российский Федеральный Ядерный Центр - Всероссийский Научно-Исследовательский Институт Экспериментальной Физики Станок для изготовления армированных пластин

Also Published As

Publication number Publication date
US4744503A (en) 1988-05-17
JPS61289979A (ja) 1986-12-19
DD247861A5 (de) 1987-07-22
CA1264116A (en) 1990-01-02
EP0199713A3 (en) 1988-08-03
AT388687B (de) 1989-08-10
CN1009714B (zh) 1990-09-26
CN86103270A (zh) 1987-09-02
ATA111685A (de) 1989-01-15
EP0199713A2 (de) 1986-10-29
JPH0337830B2 (enrdf_load_stackoverflow) 1991-06-06
DE3680814D1 (de) 1991-09-19

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