US3744730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knife assemblies for winding machines
Assignee: DISENBERG J CO Inc
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Filing: 1971-11-15
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Granted: 1973-07-10
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Expires: 1991-11-15
Abstract
Abstract A knife assembly for cutting strip material such as plastics film or tape during a winding operation whereby the trailing end of the severed strip is wrapped onto the completed reel and the leading end of the severed strip is wrapped on to a new core. Preferably, a backing member is movable into a position behind the strip, a knife or knives are moved into engagement with the strip and then transversely of the strip to effect the cutting action, brush means wraps the trailing end on to the completed reel, and roller means wraps the leading end on to a new core.
Inventors
- 👤 D Burnage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:26
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/26; B65H19/265; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/41419; B65H2301/41422; B65H2301/414222; B65H2301/4144; B65H2301/41441; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7863; Y10T83/869; Y10T83/8737; Y10T83/8739
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
105 words
A method of severing a strip of material trailing from a reel of such material wound on a core in a winding station of a turret winding machine, comprising the steps of indexing the turrets to bring a new core into the winding station, moving a backing member into a position behind one surface of the strip between the new core and the wound core, moving a score knife mounted on a knife carriage into impingement with the other surface of the strip, and effecting movement of the knife carriage transversely of the line of movement of the strip to effect severing of the strip.
Claim 2
Independent Claim
105 words
A method of severing a strip of material trailing from a reel of such material wound on a core in a winding station of a turret winding machine, comprising the steps of indexing the turrets to bring a new core into the winding station, moving a backing member into a position behind one surface of the strip between the new core and the wound core, moving a score knife mounted on a knife carriage into impingement with the other surface of the strip, and effecting movement of the knife carriage transversely of the line of movement of the strip to effect severing of the strip.
Claim 3
Dependent Claim
41 words
A method as claimed in claim 1, in which the strip is adhesive on one surface, and which further includes retracting the backing member and causing wrapping means to wrap the trailing end of the severed strip around the completed reel.
Claim 4
Dependent Claim
26 words
A method as claimed in claim 2, which includes causing further wrapping means to wrap the leading end of the severed strip around the new core.
Claim 5
Dependent Claim
37 words
A method as claimed in claim 3, wherein the trailing end of the severed strip is brushed on to the completed reel and the leading end of the severed strip is rolled on to the new core.
Claim 6
Dependent Claim
95 words
A knife assembly for a winding machine comprising a pair of relatively displaceable parts, one part being movable into a position behind one surface of a strip of material to be cut and including a backing member against which cutting is effected, and the other part disposed in front of the strip and being displaceable towards and away from the backing member, the latter part comprising a knife carriage provided with at least one score knife, and means operative to effect displacement of the score knife transversely of the line of movement of the strip.
Claim 7
Dependent Claim
95 words
A knife assembly for a winding machine comprising a pair of relatively displaceable parts, one part being movable into a position behind one surface of a strip of material to be cut and including a backing member against which cutting is effected, and the other part disposed in front of the strip and being displaceable towards and away from the backing member, the latter part comprising a knife carriage provided with at least one score knife, and means operative to effect displacement of the score knife transversely of the line of movement of the strip.
Claim 8
Dependent Claim
36 words
A knife assembly as claimed in claim 5, which includes a brush carriage associated with the knife carriage and carrying brush means operative to wrap the trailing end of the cut strip around a completed reel.
Claim 9
Dependent Claim
75 words
A knife assembly as claimed in claim 6, in which the brush carriage is held in an inactive position by restraining means when the said one part of the assembly is in said cutting position behind the strip of material, and in which upon retraction of said one part the brush carriage moves towards the strip under a spring force to bring the brush means into contact with the trailing end of the cut strip.
Claim 10
Dependent Claim
33 words
A knife assembly as claimed in claim 5, which includes contact roller means which can be actuated to effect wrapping of the leaDing end of the cut strip around an empty winding core.
Claim 11
Dependent Claim
39 words
A knife assembly as claimed in claim 8, in which the contact roller means comprises a roller which is normally restrained in an inactive position but which when actuated moves under a spring force to perform its wrapping function.
Claim 12
Dependent Claim
29 words
A knife assembly as claimed in claim 5, which includes a plurality of score knives arranged in series along the knife carriage and resiliently mounted on the knife carriage.
Claim 13
Dependent Claim
15 words
A knife assembly as claimed in claim 10, in which the score knives are circular.
Claim 14
Dependent Claim
40 words
A knife assembly as claimed in claim 5, in which said one part of the assembly comprises a pair of pivotable arms carrying the backing member, and said other part of the assembly is also displaceable along an arcuate path.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |