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US 11,701,844 B2Granted
Pulling device for a pultrusion device
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorChristoph Eisch
Life of this patent
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Abstract
A pulling device is provided for a pultrusion device, having at least one clamping device that can be moved in a pultrusion direction. The clamping device is designed to frictionally seize a pultruded profiled strand to be conveyed, in order to apply a tensile force to the profiled strand. The clamping device has at least three clamping jaws that can be moved in relation to each other, for peripherally clamping the profiled strand.
Claims8
A pulling device for a pultrusion device, comprising:
- at least one clamping device configured to grip, a pultruded profiled strand of fiber-reinforced plastics-material, and displaceable in a pultrusion direction so as to pull the pultruded profiled strand gripped therein in the pultrusion direction through the pultrusion device, wherein the clamping device comprises:
- a collet defining a central axis and having:
- at least three clamping jaws, each clamping jaw having a clamping face and being radially displaceable towards the central axis such that each clamping face force-fit contacts a respective radial portion of a cross-sectional surface area of the pultruded profiled strand to thereby provide a gripping force that is normal to and substantially uniform over the entirety of the cross-sectional surface area, and
- a collet receptacle configured to circumferentially enclose the clamping jaws such that moving the collet receptacle along the central axis relative to the clamping jaws squeezes the clamping jaws so as to cause the radial displacement of the clamping jaws for force-fitting to and thereby gripping the pultruded profiled strand.
1 more element
Dependencies are inferred from the claim text.