GB1293788A - Production of padded articles - Google Patents

Abstract

1293788 Filling upholstery; sleeping bags; bedspreads CELANESE CORP 4 Aug 1971 [5 Aug 1970] 36538/71 Headings A4G, A4M A4S [Also in Divisions A3 and D1] In an apparatus for filling open ended containers to form a padded article, e.g. sleeping bag, bedspread, or quilted housecoat, a tow or bundle of crimped, continuous filaments 12(a-e) is fed into a container 50, shown as part of a sleeping bag 46, by a current of air through Venturi tubes 38 in which the bundle 12 is opened to render it bulky, the flow is interrupted when the desired amount has been filled into the container 50 and at the same time the bundle 12 is severed near the entrance to the container. The bundles 12a-e are fed through a banding jet 14 and over a series of rollers 20-36 e.g. as in Specification 1001813 so that the crimps are no longer in registry when they enter the Venturis 38. A hot wire 54 is downwardly displaceable adjacent the discharge ends of the Venturis 38 to sever the filaments when the containers have been filled. The filling passes from the Venturis 38 into tubes 42 located in the containers 50 which are located on a table 44 which is progressively displaced away from the Venturis as the containers 50 are being filled. The interruption of the feed may be effected by cutting off the air supply to the Venturis 38. The movement of the table 44 and the cut-off of air supply may be controlled by a meter 52 set to measure either time or linear distance travelled by the filaments. Blades or shears may be used as alternative to the hot wire 54. The cycle of operations may be controlled either automatically or manually. As an alternative to the roller assembly 20-36, the crimped tows may be deregistered by tension rolls or air blasts.