Apparatus for feeding spiral wire springs from coiling machines to a spring core assembly machine
US4413659A · kind A · utility
16Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1981 |
| Grant date | Nov 8, 1983 |
| Priority date | — |
| Expiry date | Dec 28, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21F33/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Rows of springs are periodically supplied to a mattress spring core assembly machine 7 by a transfer system 6. The springs are taken, in turn, from one of two conveyor belt pairs 4, 5 by the transfer system. The individual springs are produced by spring coiling machines 1, 2 with each machine feeding one conveyor belt pair. By periodically shifting the transfer system 6 its gripping arms 20 can alternately take a row of springs from one or the other conveyor belt pair, thus doubling the overall production rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.