Patent US4629526A successfully refreshed from Google Patents.
US4629526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for replacing corrugating rolls in a single facer
Assignee: Isowa Corp
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Filing: 1984-08-13
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Granted: 1986-12-16
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Expires: 2004-08-13
Abstract
Abstract Disclosed herein is a method and means for replacing upper and lower corrugated rolls in a single facer having a cassette frame for rotatably supporting the upper and lower rolls and a main frame to which the cassette frame is detachably connected. The method comprises the steps of suspending and moving away the cassette frame apart from a predetermined mounting position in the single facer, keeping a spare cassette rotatably supporting other upper and lower rolls waiting in a suspended condition and fixing the spare cassette frame to the predetermined mounting position in the single facer in place of the cassette frame removed. Means for performing the method is disclosed which comprises a cassette frame rotatably supporting the upper and lower rolls; and a main frame carrying a pressure roll and a gluing unit. The cassette frame is detachably connected to the main frame.
Inventors
- 👤 Kousaku Kanda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:08
CPC Classifications
B; B23; B23D; B23D35/00; B23D35/008; B31; B31F; B31F1/00; B31F1/20; B31F1/24; B31F1/26; B31F1/28; B31F1/2845; B31F1/2863; B31F1/2868; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1025
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
114 words
A method for replacing corrugating rolls within a corrugating machine, comprising the steps of: providing said corrugating machine with a main frame; rotatably mounting a first set of corrugating rolls within a first cassette frame; detachably mounting said first cassette frame, and said first set of corrugating rolls mounted therewithin, upon said main frame; moving a second cassette frame, with a second set of corrugating rolls rotatably mounted therewithin, within the vicinity of said main frame; detaching said first cassette frame, with said first set of corrugating rolls mounted therewithin, from said main frame; and detachably mounting said second cassette frame, with said second set of corrugating rolls mounted therewithin, upon said main frame.
Claim 2
Independent Claim
114 words
A method for replacing corrugating rolls within a corrugating machine, comprising the steps of: providing said corrugating machine with a main frame; rotatably mounting a first set of corrugating rolls within a first cassette frame; detachably mounting said first cassette frame, and said first set of corrugating rolls mounted therewithin, upon said main frame; moving a second cassette frame, with a second set of corrugating rolls rotatably mounted therewithin, within the vicinity of said main frame; detaching said first cassette frame, with said first set of corrugating rolls mounted therewithin, from said main frame; and detachably mounting said second cassette frame, with said second set of corrugating rolls mounted therewithin, upon said main frame.
Claim 3
Dependent Claim
22 words
A method as set forth in claim 1, wherein: said corrugating machine is a single facer for fabricating single faced corrugated fiberboard.
Claim 4
Dependent Claim
25 words
A method as set forth in claim 1, wherein: said sets of corrugating rolls rotatably mounted upon said cassette frames comprise pairs of corrugating rolls.
Claim 5
Dependent Claim
43 words
A method as set forth in claim 3, providing the additional steps of: fixedly mounting a first one of said pair of corrugating rolls upon said cassette frame; pivotably mounting said second one of said pair of corrugating rolls upon said cassette frame.
Claim 6
Dependent Claim
56 words
A method as set forth in claim 4, providing the additional step of: adjusting the pivotable position of said second one of said pair of corrugating rolls upon said cassette frame relative to said first one of said pair of corrugating rolls so as to vary the nip pressure defined between said pair of corrugating rolls.
Claim 7
Dependent Claim
19 words
A method as set forth in claim 2, wherein: said corrugated fiberboard comprises a corrugating medium and a linerboard.
Claim 8
Dependent Claim
103 words
A method as set forth in claim 6, comprising the additional steps of: pivotably mounting a pressure roll upon said main frame for cooperation with a first one of said corrugating rolls; conducting a corrugating medium into the nip defined between said pressure roll and said first one of said corrugating rolls; conducting a linerboard into said nip defined between said pressure roll and said first one of said corrugating rolls; and adjusting the pivotably position of said pressure roll upon said main frame for defining a predetermined nip pressure defined between said pressure roll and said first one of said corrugating rolls.
Claim 9
Dependent Claim
43 words
A method as set forth in claim 7, further comprising: preheating said linerboard at a position upstream of said nip defined between said pressure roll and said first one of said corrugating rolls so as to control the moisture content of said linerboard.
Claim 10
Dependent Claim
38 words
A method as set forth in claim 1, wherein: said first and second cassette frames are suspendingly supported by overhead cranes when said first and second cassette frames are respectively removed from, and mounted upon, said main frame.
Claim 11
Dependent Claim
99 words
Corrugating roll apparatus, comprising: a main frame; a cassette frame; a set of corrugating rolls rotatably mounted upon said cassette frame; and means detachably mounting said cassette frame, having said set of corrugating rolls rotatably mounted thereon, upon said main frame, whereby when said set of corrugating rolls require replacement with a new second set of corrugating rolls, said cassette frame, along with said set of corrugating rolls mounted thereon, may be removed from said main frame and a new cassette frame, with said new second set of corrugating rolls mounted thereon, may be mounted upon said main frame.
Claim 12
Dependent Claim
99 words
Corrugating roll apparatus, comprising: a main frame; a cassette frame; a set of corrugating rolls rotatably mounted upon said cassette frame; and means detachably mounting said cassette frame, having said set of corrugating rolls rotatably mounted thereon, upon said main frame, whereby when said set of corrugating rolls require replacement with a new second set of corrugating rolls, said cassette frame, along with said set of corrugating rolls mounted thereon, may be removed from said main frame and a new cassette frame, with said new second set of corrugating rolls mounted thereon, may be mounted upon said main frame.
Claim 13
Dependent Claim
21 words
Apparatus as set forth in claim 10, wherein: said corrugating apparatus is a single facer for fabricating single faced corrugated fiberboard.
Claim 14
Dependent Claim
18 words
Apparatus as set forth in claim 11, wherein: said corrugated fiberboard comprises a corrugating medium and a linerboard.
Claim 15
Dependent Claim
24 words
Apparatus as set forth in claim 10, wherein: said sets of corrugating rolls rotatably mounted upon said cassette frames comprise pairs of corrugating rolls.
Claim 16
Dependent Claim
108 words
Apparatus as set forth in claim 13, further comprising: means fixedly mounting a first one of said pair of corrugating rolls upon said cassette frame; means pivotably mounting a second one of said pair of corrugating rolls upon said cassette frame; and means mounted upon said main frame for engagement with said second one of said pair of corrugating rolls for adjusting the pivotable position of said second one of said pair of corrugating rolls upon said cassette frame relative to said first one of said pair of corrugating rolls upon said cassette frame so as to vary the nip pressure defined between said pair of corrugating rolls.
Claim 17
Dependent Claim
69 words
Apparatus as set forth in claim 12, further comprising: means pivotably mounting a pressure roll upon said main frame for defining a nip with one of said corrugating rolls into which said corrugating medium and said linerboard are conducted; and means for adjusting the pivotable position of said pressure roll so as to vary the nip pressure defined between said pressure roll and said one of said corrugating rolls.
Claim 18
Dependent Claim
51 words
Apparatus as set forth in claim 15, further comprising: means mounted upon said main frame for applying glue to said corrugating medium at a position upstream of said nip defined between said one of said corrugating rolls and said pressure roll for facilitating bonding of said corrugating medium and said linerboard.
Claim 19
Dependent Claim
48 words
Apparatus as set forth in claim 15, further comprising: means defined upon said main frame at a position upstream of said nip defined between said one of said corrugating rolls and said pressure roll for preheating said linerboard so as to control the moisture content of said linerboard.
Claim 20
Dependent Claim
34 words
Apparatus as set forth in claim 14, wherein: said means for adjusting said pivotable position of said second one of said pair of corrugating rolls upon said cassette frame comprises a double-acting hydraulic piston-cylinder.
Claim 21
Dependent Claim
24 words
Apparatus as set forth in claim 15, wherein: said means for adjusting said pivotable position of said pressure roll comprises a double-acting hydraulic piston-cylinder.
Claim 22
Dependent Claim
42 words
Apparatus as set forth in claim 10, further comprising: overhead crane means for suspendingly supporting said cassette frame and said new cassette frame when said cassette frame and said new cassette frame are respectively removed from and mounted upon said main frame.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |