Automatic wrapping method of cylindrical articles, particularly plastic bobbins and apparatus therefor
US5105602A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 1991 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | Jan 15, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B9/026
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An automatic wrapping apparatus of cylindrical articles, particularly plastic bobbins. The apparatus includes feed rollers for feeding two wrapping sheets therebetween in opposed manner to form a bottom portion for a wrapping bag. A loading device is provided for loading bobbins onto the bottom portion by holding each unit of regularly arranged bobbins and dropping it in an orderly state. A support member is provided for supporting the bobbins unit by unit from underneath and causing the bobbin unit whenever dropped to descend by the bobin height, thus stacking bobbin units one upon another. A basket-like retainer is provided for receiving the bobbin units descending with stacking to retain them in the place so as to keep the orderly state. A heat sealer is provided for uniting the bottom portion and a top margin of the wrapping bag. A side heat sealer is provided for uniting both sides of the bag. A method of packaging the bobbins includes the steps of feeding two wrapping sheets to form by heat sealing a bottom portion of a wrapping bag. Each unit of bobins regularly arranged in a holder is then loaded onto the bottom portion by dropping from the holder, simultaneously causing ea…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.