Apparatus and method for processing logs
AssigneeVeisto Oy
InventorsMarkku Rautio, Tuomas Halttunen
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Abstract
An apparatus for processing logs includes a conveyor for conveying a log in the apparatus, a chipping canter, which comprises two chipping head assemblies for chipping the opposite sides of a log, and a saw, which comprises at least two circular blades for sawing the log on at least one side. The chipping head assemblies are installed on different shafts than the circular blades. The circular blades of a saw are situated before the chipping canter in the conveying direction of a log and are arranged to, before chipping, partly or completely saw off from the log the parts of the log that are to be chipped with the chipping head assemblies.
Claims16
An apparatus for processing logs, which apparatus comprises:
- a conveyor for conveying a log in the apparatus,
- a chipping canter, which comprises two chipping head assemblies for chipping the opposite sides of the log, and
- a saw, which comprises at least two circular blades for sawing the log on at least one side, the circular blades of the saw being situated before the chipping canter in the conveying direction of the log,
- wherein the chipping head assemblies are installed on different shafts than the circular blades, and the circular blades are situated at the same point in a width direction of the log as inner ends, facing a center part of the log, of the chipping head assemblies, and
- wherein the circular blades of the saw are arranged to, before chipping, partly saw off from the log the parts of the log that are to be chipped with the chipping head assemblies, and the chipping head assemblies are provided with head saw blades for, before chipping, sawing off the parts to be chipped from the log,
- wherein the saw comprises at least one inner circular blade arranged between the circular blades for sawing the log between the sawing points of the circular blades.
A method for processing logs, comprising the steps of:
- feeding a log into a processing apparatus;
- and
- conveying the log onwards in the processing apparatus, wherein the processing apparatus comprises:
- a chipping canter, which comprises at least two chipping head assemblies, with which the opposite sides of the log are chipped, and
- a saw, which comprises at least two circular blades, with which the log is sawn on at least one side, wherein the chipping head assemblies are rotated on different shafts than the circular blades, and the circular blades are situated at the same point in a width direction of the log as inner ends, facing a center part of the log, of the chipping head assemblies,
- wherein parts of the log that are to be chipped are, before chipping, partly sawn off from the log with the circular blades of the saw,
- wherein the chipping head assemblies are provided with head saw blades, with which, before chipping, the parts to be chipped are sawn off from the log, and
- wherein the saw comprises at least one inner circular blade arranged between the circular blades, with which inner circular blade the log is sawn between the sawing points of the circular blades.
An apparatus for processing logs, which apparatus comprises:
- a conveyor for conveying a log in the apparatus,
- a chipping canter, which comprises two chipping head assemblies for chipping the opposite sides of the log, and
- a saw, which comprises at least two circular blades for sawing the log on at least one side,
- wherein the chipping head assemblies are installed on different shafts than the circular blades,
- wherein the circular blades of the saw are situated before the chipping canter in the conveying direction of a log and are arranged to, before chipping, partly or completely saw off from the log the parts of the log that are to be chipped with the chipping head assemblies, and profiling blades are arranged against the circular blades for milling a log, and
- wherein the saw comprises at least one inner circular blade arranged between the circular blades for sawing the log between the sawing points of the circular blades.
Dependencies are inferred from the claim text.