Multiple purpose cutter apparatus
US4257295A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1979 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Feb 26, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/8853
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Apparatus for the high speed automatic cutting of measured lengths of a multiplicity of materials in which the material is guidingly fed from a supply source centrally of a feed path by a pair of adjustable feed rollers driven by a stepping motor that measures the length of material to be cut in terms of the cumulative steps of the stepping motor, and in which a reciprocable cutter knife is actuated in each cutting operation by a controlled single revolution of a connected drive shaft. A presser member supported for movement with the cutter knife engages the material in advance of the cutting blade and holds the material during cutting. The feed rollers are adjustable to a preset operative position and are spring urged to this position, but are arranged for independent manual movement to a wider separation of the rollers than in the preset position. The urging spring is also adjustable to vary its effective urging force. A unique gear train drivingly interconnects the rollers and is arranged to maintain their teeth in meshed driving relation during and at the adjusted positions of the spaced rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.