21-03-2019 дата публикации
Номер: US20190082822A1
Принадлежит:
A method and an apparatus for producing bristle fields for brushes. The bristles are filled into a hole of a mold form by a feed line having an upstream end with an inlet valve and a downstream end with an outlet valve. The method includes steps of forming a bundle of bristles; applying a predefined gas pressure above atmospheric pressure in the feed line the inlet and outlet valves; inserting the bundle into the feed line at an insertion station between the inlet and outlet valves; and maintaining the predefined pressure between said valves; draining off a first volume of gas from the feed line via the outlet valve while feeding a second volume of gas into the feed line via the inlet valve, thereby moving the bundle of bristles in the feed line towards the mold form, wherein the pressure in the feed line upstream and downstream of the bundle of bristles is kept above atmospheric pressure. 11428710914. A method for producing bristle fields for brushes , wherein bristles are filled into at least one hole of a mold form () by means of a feed line () having an upstream end () with an inlet valve () and a downstream end () with an outlet valve () at the mold form () , the method comprising the steps:{'b': '4', 'forming at least one bundle () of bristles,'}{'b': 2', '7', '9, 'applying a predefined gas pressure above atmospheric pressure in the feed line () between the inlet valve () and the outlet valve (),'}{'b': 4', '2', '1', '7', '9', '7', '9, 'inserting the bundle () of bristles into the feed line () at an insertion station () between the inlet valve () and the outlet valve () and maintaining the predefined pressure between the inlet valve () and the outlet valve (),'}{'b': 2', '9', '2', '7', '4', '2', '14', '2', '4, 'draining off a first volume of gas from the feed line () via the outlet valve () while feeding a second volume of gas into the feed line () via the inlet valve (), thereby moving the bundle () of bristles in the feed line () towards the mold form (), ...
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