公开(公告)号：US3732907A

公开(公告)日：1973-05-15

申请号：US3732907D

申请日：1970-08-24

Applicant: PITEA MASKIN INDUSTRI

Inventor： NYSTROM S ,  LARSSON G

IPC: B27G13/00 ,  B27G13/08 ,  B27L11/00 ,  B27L11/02

CPC classification number: B27G13/00 ,  B27G13/08 ,  B27L11/005 ,  B27L11/02

Abstract: The invention relates to a method for separating small pieces from blanks of material by using a device comprising a plurality of cutting elements, with short cutting edges as compared with the blank, said cutting elements being so arranged on the face of a rotating cutting element holding means with their edges pointing essentially in the direction of rotation, that always a plurality of said edges are in holding engagement with the blank during the rotation of said holding means when said blank is moved along a path intersecting said face. The feeding path has a projection, the direction of which is essentially parallel to the direction of the tangents of the orbits of the cutting elements in the place where said path intersects said face. When applicated to a method of chipping timber the invention has the consequence that an elongated chip blank is cut from a sloping end face of the log by each cutting element, the width of said chip blank as determined by the length of said cutting edge being the same as the width of a separate chip, the length of each chip being determined by the angle between the direction of the fibers in the blank and the direction of the thickness of the blank. The invention also relates to a device for separating small pieces from a blank of material, particularly a chipping machine for chipping timber to chips, said device comprising a plurality of cutting elements, with short cutting edges as compared with at least the next smallest dimension of the blank, said cutting elements being so arranged on the face of a rotating cutting element holding means at different distances from the axis of rotation of said holding means and with the edges pointing essentially in a direction of rotation, that always a plurality of said edges are in holding engagement with the blank during the rotation of said holding means when said blank is moved along a path intersecting said face. The inclination of the back of the cutting element, i.e. the surface of the cutting elements directed towards the blank and the abutting the cutting edge, towards a plane including the rotational path of the cutting element is different between the cutting elements in such a manner that it increases with a reduced spacing between the cutting element and the axis of rotation of the holding means. In another device for carrying out the method the cutting elements are arranged on a cylinder and the feeding path for the blank to be separated extends at a right angle to the cylinder axis.

Abstract translation: 本发明涉及一种用于通过使用包括多个切割元件的装置来分离小件与材料坯料的方法，所述装置与坯件相比具有短的切削刃，所述切割元件设置在旋转的切割元件的表面上 意味着其边缘基本上指向旋转方向，当所述坯件沿着与所述面相交的路径移动时，总是多个所述边缘在所述保持装置旋转期间与坯件保持接合。 馈送路径具有突起，该突起的方向基本上平行于所述路径与所述面相交的位置处的切割元件的轨道的切线的方向。

公开(公告)号：US3746062A

公开(公告)日：1973-07-17

申请号：US3746062D

申请日：1971-12-13

Applicant: PITEA MASKIN INDUSTRI ,  NYSTROM & LARSSON AB

Inventor： NYSTROM K ,  LARSSON G

IPC: B27G13/00 ,  B27G13/08 ,  B27L11/00 ,  B27L11/02 ,  B27C1/00

CPC classification number: B27G13/00 ,  B27G13/08 ,  B27L11/005 ,  B27L11/02

Abstract: The present invention relates to a wood chipper or the like, comprising a plurality of cutting or chipping tools carried by a rotatable tool holder.

Abstract translation: 木屑切割机等技术领域本发明涉及一种木材切割机等，其包括由可旋转的工具架承载的多个切割或切屑工具。