| 摘要 |
A scraping apparatus is used at the scraping off of the layer of fat from fur pelts, such as mink and foxes' pelts immediately upon pelting the animals. The apparatus comprises at least one driven pole (10) over which the pelts are pulled, the flesh side facing outwardly and are retained tautly by hooks (28) in the hind shanks at the thicker end of the pole. A scraper unit (6) having a scraper (46) can be moved axial parallel to the pole (10), said scraper can be brought into engagement with the flesh side of the pelt for scraping off the layer of fat. In order to achieve a scraping of the pelts also during the return movement of the scraper unit, the apparatus can be designed such that the direction of rotation of the pole can be reversed during the return movement, and such that the scraper during this is engaging the pelt. Hereby an increased capacity is achieved but also a more efficient cleaning because the pelts are scraped in one as well as the opposite direction. The reversing is carried out in the following manner: the hooks (28) that retain the pelt tautly are provided with levers of such physical size that they can actuate an inductive sensor being matched thereto for reversing the apparatus to its initial position. The speed of the pole and the scraping unit can be synchronized and the scraping unit is pulled by a worm shaft (52) axial parallel to the pole and via a gear pulled by the same drive motor that moves the pole. In order to facilitate the attaching and removal of the pelts the pole is suspended at its thicker end round the drive shaft and the thinner end (24) can be retained in a bearing bush that is displaceable into and out of engagement with the end. |
