EP0150913A2 - Roller tooling for forming corrugated strip - Google Patents

Roller tooling for forming corrugated strip Download PDF

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Publication number
EP0150913A2
EP0150913A2 EP19850300094 EP85300094A EP0150913A2 EP 0150913 A2 EP0150913 A2 EP 0150913A2 EP 19850300094 EP19850300094 EP 19850300094 EP 85300094 A EP85300094 A EP 85300094A EP 0150913 A2 EP0150913 A2 EP 0150913A2
Authority
EP
European Patent Office
Prior art keywords
teeth
rollers
devoid
vee
toothed
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Withdrawn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
EP19850300094
Other languages
German (de)
English (en)
French (fr)
Inventor
Robin Stevenson
James Robert Mondt
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.)
Motors Liquidation Co
Original Assignee
General Motors Corp
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 General Motors Corp filed Critical General Motors Corp
Publication of EP0150913A2 publication Critical patent/EP0150913A2/en
Withdrawn legal-status Critical Current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
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
    • 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
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
    • B21D13/045—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling the corrugations being parallel to the feeding movement

Definitions

  • This invention relates to roller tooling for forming corrugated strip and more particularly to corrugated strip where the corrugations have a chevron pattern.
  • a highly efficient monolithic catalytic converter substrate for automotive use can be constructed of corrugated metal foil strip having a straight-stripe chevron pattern of uninterrupted transversely extending corrugations. Because of the use, the material selection is restricted, and most of the suitable high temperature resistant alloys exhibit only limited ductility. So one solution to avoiding splits and tears in the formation of the corrugations has been to increase the foil thickness provided the resulting increase in size, weight and cost of the converter is acceptable'and justifiable.
  • the straight-stripe chevron pattern has been shown to exhibit sufficiently high heat transfer and low friction with little pressure drop so that curving the corrugation pattern to avoid splits and tears in the foil not only adds to the cost of the tooling but may adversely affect the performance of the resulting monolithic substrate.
  • the state of strain varies smoothly across the strip width ranging from essentially balanced biaxial strain at the root of what will be called the "forward" vees of the corrugations to plane strain at the root of what will be called the “backward” vees of the corrugations.
  • the chevron pattern (which may also be called a herringbone pattern) can be viewed as being formed from a collection of V-shaped elements. When the V-shaped elements point in the same direction as the direction of the strip stock motion through the rollers, they are considered forward vees.
  • V-shaped elements point in a direction opposite to the direction of the strip stock through the rollers,they are considered backward vees.
  • the most deletrious condition in the formation of the chevron or herringbone straight- strips corrugations has been found to be that of the balanced biaxial strain which occurs at the point or apex of the forward vees.
  • the roller tooling comprises a pair of toothed rollers each having uninterrupted transversely extending teeth conforming to the desired chevron or herringbone pattern.
  • each of the rollers is provided with transverse rows of discrete teeth extending interruptedly rather than uninterruptedly thereacross with selected ones of the teeth in each row being discontinuous with each other.
  • each of the rollers comprises a ganged set of toothed wheels arranged side-by-side and with the teeth on each wheel all arranged diagonally at the same angle.
  • the forward vee points are then simply eliminated by chamfering the opposing ends of the teeth all around the two adjacent wheels at said forward vee location.
  • the same effect is accomplished simply by employing a spacer between the toothed wheels where their teeth would otherwise form the point of the forward vees.
  • the point of the backward vees may also be similarly eliminated with the teeth still remaining capable of forming the complete corrugations.
  • FIG. 1-4 there is shown in Figures 1-4 a corrugating machine 10 of the roller type incorporating one embodiment 12 of the roller tooling constructed according to the present invention capable of forming the corrugated strip shown in Figure 5.
  • the corrugating machine generally comprises a base 14 having an integral pedestal 16, a pair of parallel rectangular-shaped side frame plates 18 and 20 bolted to the sides of the base and pedestal, and a pair of parallel L-shaped lever arms 22 and 24 overhanging the respective side frame plates 18 and 20 at their legs and pivotally supported and connected at their toes by shoulder bolts 26 and 28 to opposite sidr3 of the pedestal 16.
  • the roller tooling generally comprises a pair of toothed rollers 30 and 32 arranged one over the other with the upper roller 30 rotatably supported through a shaft 34 by and between the lever arms 22 and 24 and the lower roller 32 rotatably supported through a shaft 36 by and between the side frame plates 18 and 20.
  • the strip to be corrugated is fed from right to left between the toothed rollers across the top 38 of the pedestal with the assistance of a plain roller pin 40 supported on the pedestal as shown.
  • the corrugation - .forming teeth of the two rollers 30 and 32 are synchronized to interleaf or mesh with clearance with respect to each other by meshing gears 42 and 44 which also serve to drivingly interconnect the rollers and are secured by respective tapered pins 46 and 48 to respective extensions 50 and 52 at one end of the respective shafts 34 and 36 projecting outward from the sideframe plate 18 and lever arm 22 respectively.
  • Drive to the toothed rollers from a suitable power source such as a geared motor (not shown) is taken by another extension 54 formed on the lower roller shaft 36 projecting outward from the other side frame plate 20.
  • the depth of corrugation is controlled by the center-to-center distance between the corrugating rollers and this is made adjustable by the pivotable upper roller support 22, 24 which functions as a trailing arm.
  • the pivotable upper roller support 22, 24 which functions as a trailing arm.
  • Lateral or transverse movement of the lever arms 22 and 24 and thus the upper roller 30 is prevented by a pair of rectangularly shaped containment fingers 62 and 64 which are bolted to the outboard side of the respective side frame plates 18 and 20 and contact with the outboard side of the lever arms where the adjustment screws 58 and 60 are located.
  • this position of the pivotable upper roller is fixed by tightening a pair of shoulder bolts 66 and 68 which extend downward through the respective lever arms 22 and 24 between the adjusting screws and the top roller and threadably engage with the respective side frame plates 18 and 20 at the top of the latter.
  • the rollers 30 and 32 can readilybe adjusted to accommodate strip stock with slightly different thickness or ductility.
  • corrugating rollers 30 and 32 they are each formed of a ganged set of toothed wheels 7Q which are identical except for certain important features as will be described later'and are double in number to the number of chevrons in the pattern (in this case sixteen wheels 70 to produce the eight-chevron pattern in Figure 5).
  • the toothed wheels 70 each have a central hole 72 by which they are received in side-by-side arrangement on the respective roller shafts 34 and 36.
  • the toothed wheels 70 are fixed for rotation with the shafts 34 and 36 by respective key and slot connections 74 and 76 while their axial containment thereon is provided by radial shoulders78 and 80 formed integral with the respective shafts at one end of the ganged wheel sets and by respective snap rings 82 and 84 at the opposite end.
  • the teeth 86 on each wheel extend diagonally thereacross at the same angle with alternate ones 70A of the toothed wheels arranged in opposite angular sense to that of the adjacent wheels 70B so that the ganged set of wheels by the opposite angular sense of their diagonal teeth thus form the desired chevron or herringbone forming pattern for the corrugating rollers 30 and 32.
  • the chevron pattern of the forming teeth on the rollers identifies those V-shaped elements of the teeth which point in the same forward direction as the direction of the strip stock motion through the rollers and those V-shaped elements which point in the opposite or backward direction.
  • the points or apices of the forward vees 88 are eliminated by forming a chamfer 92 on the opposing ends of the teeth all around the two adjacent wheels of oppositely angled teeth at each such forward vee location as best seen in Figures 2, 3 and 3a.
  • Each of the corrugating rollers 30 and 32 is thus formed with transverse rows of discrete teeth extending interruptedly rather than uninterruptedly thereacross as is normal, with the selected ones of the teeth in each row (i.e. those forming the forward vees 88) being discontinuous with each other,where they would normally come together, by the formation of the chamfers 92.
  • corrugating rollers are thus devoid of any forward vee points or apices but otherwise conform to the desired chevron or herringbone corrugation configuration. Nevertheless, it has been discovered that forward vee points or apices are still formed in the strip stock in the roller regions devoid of teeth (i.e. at the pairs of chamfers 92) by tension action of the adjoining teeth 86 forming the forward vees 88 so as to produce the complete corrugations in the strip with distributed and thereby reduced strain in the forward vee corrugation regions.
  • the corrugated strip shown in Figure 5 was formed from stainless steel foil using the toothed rollers 30 and 32 and it will be seen that the forward vee points were nevertheless produced albeit relatively blunt as compared with the backward vee points where the corrugating teeth remained continuous.
  • the pointsor apices of the backward vees 90 may also be-similarly eliminated with a complete corrugation nevertheless being formed in the strip stock.
  • the toothed roller identified as 96 is for a double chevron or herringbone pattern and as a result has a ganged set of only four toothed wheels 98 secured to the shaft 100 as before.
  • the forward vees are formed in the strip stock by what may be viewed as the two outboard pairs of wheels 98A.and their juncture is made devoid of teeth by simply inserting an annular spacer ring or washer 102 therebetween mounted on the shaft,leaving what can be viewed as the intermediate pair of toothed wheels 98B to adjoin in forming the point of the backward vees. Then as in the previous embodiment, should the point of backward vees also tend to cause splits and tears, an additional spacer could be inserted between the intermediate pair of toothed wheels 98B.
  • the rollers are formed of a ganged set of toothed wheels for their ease of manufacture and the implementation of chamfer or spacers to eliminate the point of the forward vees and secondarily that of the backward vees
  • the corrugating rollers may otherwise be constructed within the teachings of the present invention in the avoidance of those tooth portions which tend to rip and tear the stripped material.
  • the corrugating rollers could be formed of one piece with the forward vee points, and secondarily the backward vee points,then machined out along with the formation of the teeth.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP19850300094 1984-02-01 1985-01-07 Roller tooling for forming corrugated strip Withdrawn EP0150913A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57580084A 1984-02-01 1984-02-01
US575800 1984-02-01

Publications (1)

Publication Number Publication Date
EP0150913A2 true EP0150913A2 (en) 1985-08-07

Family

ID=24301768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850300094 Withdrawn EP0150913A2 (en) 1984-02-01 1985-01-07 Roller tooling for forming corrugated strip

Country Status (2)

Country Link
EP (1) EP0150913A2 (enrdf_load_stackoverflow)
JP (1) JPS60180829A (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996041691A1 (en) * 1995-06-10 1996-12-27 Metsec Plc Metal strip
EP0945195A3 (en) * 1998-03-23 2001-11-21 Calsonic Kansei Corporation Molding roll for metal thin plate as catalyst carrier and molding roll apparatus
US6515790B2 (en) 2000-01-28 2003-02-04 Minolta Co., Ltd. Reversible image display medium and image display method
GB2457730A (en) * 2008-02-25 2009-08-26 Iti Scotland Ltd A multi-layered corrugated tubular structure
CN102601182A (zh) * 2012-04-01 2012-07-25 安徽德系重工科技有限公司 波纹板卷板机
EP2759352A1 (en) * 2013-01-28 2014-07-30 Alstom Technology Ltd Roller for forming heat transfer elements of heat exchangers
US10094626B2 (en) 2015-10-07 2018-10-09 Arvos Ljungstrom Llc Alternating notch configuration for spacing heat transfer sheets
US10175006B2 (en) 2013-11-25 2019-01-08 Arvos Ljungstrom Llc Heat transfer elements for a closed channel rotary regenerative air preheater
US10197337B2 (en) 2009-05-08 2019-02-05 Arvos Ljungstrom Llc Heat transfer sheet for rotary regenerative heat exchanger
US10378829B2 (en) 2012-08-23 2019-08-13 Arvos Ljungstrom Llc Heat transfer assembly for rotary regenerative preheater
US10914527B2 (en) 2006-01-23 2021-02-09 Arvos Gmbh Tube bundle heat exchanger
CN113333538A (zh) * 2021-08-06 2021-09-03 南通德泰隆钢结构工程有限公司 一种彩钢瓦用加强筋压制机及其使用方法
WO2022015603A1 (en) 2020-07-13 2022-01-20 Pac Worldwide Corporation Conformable, recyclable shipping container, machine and method
CN115122177A (zh) * 2022-07-25 2022-09-30 潮州市潮安区乌洋纸品有限公司 一种环保型瓦楞辊及其打磨设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5563316B2 (ja) * 2009-03-18 2014-07-30 東海興業株式会社 芯材の製造方法及びトリム材の製造方法並びに芯材
CN107199264B (zh) * 2017-07-06 2023-08-01 海目星激光科技集团股份有限公司 一种齿面压痕装置

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996041691A1 (en) * 1995-06-10 1996-12-27 Metsec Plc Metal strip
EP0945195A3 (en) * 1998-03-23 2001-11-21 Calsonic Kansei Corporation Molding roll for metal thin plate as catalyst carrier and molding roll apparatus
US6515790B2 (en) 2000-01-28 2003-02-04 Minolta Co., Ltd. Reversible image display medium and image display method
US10914527B2 (en) 2006-01-23 2021-02-09 Arvos Gmbh Tube bundle heat exchanger
GB2457730A (en) * 2008-02-25 2009-08-26 Iti Scotland Ltd A multi-layered corrugated tubular structure
US10197337B2 (en) 2009-05-08 2019-02-05 Arvos Ljungstrom Llc Heat transfer sheet for rotary regenerative heat exchanger
US10982908B2 (en) 2009-05-08 2021-04-20 Arvos Ljungstrom Llc Heat transfer sheet for rotary regenerative heat exchanger
CN102601182A (zh) * 2012-04-01 2012-07-25 安徽德系重工科技有限公司 波纹板卷板机
CN102601182B (zh) * 2012-04-01 2014-07-02 安徽德系重工科技有限公司 波纹板卷板机
US11092387B2 (en) 2012-08-23 2021-08-17 Arvos Ljungstrom Llc Heat transfer assembly for rotary regenerative preheater
US10378829B2 (en) 2012-08-23 2019-08-13 Arvos Ljungstrom Llc Heat transfer assembly for rotary regenerative preheater
EP2759352A1 (en) * 2013-01-28 2014-07-30 Alstom Technology Ltd Roller for forming heat transfer elements of heat exchangers
CN103962474A (zh) * 2013-01-28 2014-08-06 阿尔斯通技术有限公司 用于形成热交换器的热传递元件的辊
KR20140097024A (ko) * 2013-01-28 2014-08-06 알스톰 테크놀러지 리미티드 열교환기의 열전달 요소들을 형성하기 위한 롤러
TWI581936B (zh) * 2013-01-28 2017-05-11 傲華公司 用於形成熱交換器之熱傳元件的輥子
US9579702B2 (en) 2013-01-28 2017-02-28 Arvos Inc. Roller for forming heat transfer elements of heat exchangers
CN103962474B (zh) * 2013-01-28 2016-08-17 傲华公司 用于形成热交换器的热传递元件的辊
US10175006B2 (en) 2013-11-25 2019-01-08 Arvos Ljungstrom Llc Heat transfer elements for a closed channel rotary regenerative air preheater
US10094626B2 (en) 2015-10-07 2018-10-09 Arvos Ljungstrom Llc Alternating notch configuration for spacing heat transfer sheets
WO2022015603A1 (en) 2020-07-13 2022-01-20 Pac Worldwide Corporation Conformable, recyclable shipping container, machine and method
EP4178793A4 (en) * 2020-07-13 2024-09-04 PAC Worldwide Corporation RECYCLABLE, CONFORMABLE SHIPPING CONTAINER, MACHINE AND PROCESS
CN113333538A (zh) * 2021-08-06 2021-09-03 南通德泰隆钢结构工程有限公司 一种彩钢瓦用加强筋压制机及其使用方法
CN113333538B (zh) * 2021-08-06 2021-10-01 南通德泰隆钢结构工程有限公司 一种彩钢瓦用加强筋压制机及其使用方法
CN115122177A (zh) * 2022-07-25 2022-09-30 潮州市潮安区乌洋纸品有限公司 一种环保型瓦楞辊及其打磨设备
CN115122177B (zh) * 2022-07-25 2023-05-26 潮州市潮安区乌洋纸品有限公司 一种环保型瓦楞辊及其打磨设备

Also Published As

Publication number Publication date
JPH0258097B2 (enrdf_load_stackoverflow) 1990-12-06
JPS60180829A (ja) 1985-09-14

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

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17P Request for examination filed

Effective date: 19850114

AK Designated contracting states

Designated state(s): DE FR GB IT

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

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18W Application withdrawn

Withdrawal date: 19850729

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MONDT, JAMES ROBERT

Inventor name: STEVENSON, ROBIN