Auger feeder of concrete mix and method of manufacturing an auger feeder

摘要

The invention relates to an auger feeder of concrete mix having a helical segment, which auger feeder has at least one insert (22), which is manufactured of material that is softer than that used for manufacturing the auger feeder's helical segment. One insert (22) is mounted on a downstream end of the auger feeder. The invention also relates to a method of manufacturing an auger feeder, which method includes manufacture of a helical segment of the auger feeder, in which method at least one insert is manufactured from a material softer than that used for the auger feeder's helical segment. The insert (22) is to be mounted on a downstream end of the auger feeder of the casting of the auger feeder's helical segment.

主权项

1. An auger feeder for concrete mix, said auger feeder comprising:
a cast helical segment, least one insert mounted on a downstream end of the auger feeder, 21, the annular insert having a gap cutting the annular shape in a cross direction, wherein the insert is manufactured of material that is softer than that used for manufacturing the cast helical segment, and wherein the annular insert is set into a cast mold of the auger feeder before casting the helical segment, and a cover plate covering at least part of outer surface of a circumference of the annular insert at the area of the gap.