Method and machine for manufacturing brushes
AssigneeSchlesinger GmbH & Co. Maschinenbau KG
InventorWolfgang Bickel
Life of this patent
Estimating the term…
Abstract
A method and machine for manufacturing brushes, in which bristle bunches are manufactured before being transported to a brush member, the individual bristles being connected to one another. Bristle bunches which are prepared in this manner are distributed by a distributor block to plural tubular conduits leading to a bristle bunch holder which holds the bristle bunches in a desired orientation relative to the brush member. The bristle bunches and the brush member are welded together by pressing them against one another, both the bristle bunches and the brush member having previously been softened at the welding regions. The tubular conduits can be of any desired length and can be routed in any desired direction to the brush member, which permits the manufacture of all brush shapes.
Claims57
A method of manufacturing a brush, comprising the steps of:
- manufacturing a plurality of bristle bunches which each include a plurality of bristles, said manufacturing step including the step of connecting the bristles of each said bristle bunch together at one end thereof;
- thereafter transporting each of said bristle bunches through a respective elongate conduit from a first end to a second end thereof, each said conduit having a length substantially longer than the length of the associated bristle bunches;
- supporting the bristle bunches transported to said second ends of said conduits in a predetermined orientation relative to each other which is the same relative orientation the bristle bunches are to have in the completed brush;
- and thereafter simultaneously securing a fastening end of each said bristle bunch to a single brush member.
A machine for manufacturing a brush which includes a brush member and a plurality of bristle bunches secured to and projecting outwardly from the brush member at spaced fastening locations thereon, comprising:
- a plurality of elongate conduits which each have a first end and a second end and which each have a length substantially longer than the length of each of the bristle bunches;
- distributor means for introducing into said first end of each said conduit a respective one of the bristle bunches and for causing each such bristle bunch to be transported through the associated conduit from said first end to said second end thereof;
- bristle bunch holder means for receiving from said second end of each said conduit the bristle bunches transported therethrough;
- brush member support means for supporting a brush member adjacent said bristle bunch holder means, said bristle bunch holder means including bristle bunch support means for holding the bristle bunches in positions in which, when a brush member is supported in said brush member support means, a fastening end of each bristle bunch is adjacent a respective one of said fastening locations on the brush member and in which the bristle bunches have the same orientations relative to each other that they are to have when secured on the brush member;
- and means for simultaneously securing the fastening end of each of the bristle bunches to the brush member.
The machine for manufacturing a brush which includes a brush member and a plurality of bristle bunches secured to and projecting outwardly from the brush member at spaced locations thereon, comprising:
- a plurality of conduits which each have a first end and a second end and which each have a length substantially longer than the length of each of the bristle bunches;
- distributor means for introducing into said first end of each said conduit a respective one of the bristle bunches and for causing each such bristle bunch to be transported through the associated conduit from said first end to said second end thereof;
- mold means having therein a mold cavity in the shape of the brush member, said mold means including bristle bunch holding means for receiving from said second end of each said conduit the bristle bunches transported therethrough and for supporting each such bristle bunch in a respective receiving opening which communicates with said mold cavity in a manner so that a fastening end of each bristle bunch is in the region of said mold cavity and so that the bristle bunches have the same orientation relative to each other that they are to have in the completed brush;
- and means for introducing a plastic material into the mold cavity in a manner so that the fastening ends of the bristle bunches become enveloped and for then permitting said plastic material to cure, said cured plastic material being the brush member.
Dependencies are inferred from the claim text.