Abstract:
A turnover apparatus and method for turning over articles such as lumber or board pieces being conveyed sideways on one or more conveyor drive loops in which each piece is retarded on the conveyor loops by structure engaging the underside of the pieces to shift the piece back against a lug mounted on each respective conveyor chain loop, the piece thereafter rotated up to an on edge position by flipper arms also mounted on the conveyor loops which each engage a cam ramp at a turnover station, the piece thereafter tipped over forwardly to complete the turnover. Optional pivoted let down arms may be arranged to engage the leading side of the pieces to controllably lower the same by motion induced by second cams at the turnover station.
Abstract:
A high-speed stacker preferably includes dual stacking arms configured to operate complementary to one another. Most preferably, an electronic control system is provided to enable precise control over the speed and positioning of the stacker arms in both horizontal and vertical orientations. Linear motion devices (such as hydraulic cylinders, screw drive linear actuators, or other devices) can be used to position the arms horizontally and vertically in response to instructions from the electronic control system. In operation, the electronic control system preferably controls the speed and ramping of the stacker arms to repeatedly move courses of material from a feed system to a stacking area at a rapid rate with little maintenance. The high-speed stacker can also be configured to operate fewer than all of the stacker arms to facilitate faster stacking of smaller courses of material.
Abstract:
The present invention 10 discloses a device for singulating individual logs from groups of logs for linear or transverse processing. The present invention discloses a log singulator having a fully rotatable lifter arm member, i.e., 360 degrees rotatable, which is used to singulate logs from groups of logs. The rotatable axle of the lifter arm may be located above the upstream “V” of the log cradle member. Furthermore, the lifter arm of the present invention will positively push the logs over the top point of the log cradle because it is rounded at the top point, thereby allowing the tip of lifter arm to remain in contact with the log. Lifter arms with 1 to 4 lifter arm tips are disclosed.
Abstract:
A log rocker has a long lever arm with a back cylinder fulcrum at its bottom end. Also attached to the bottom end of the lever arm is a semi-circular, curved, pair of prongs and an upper, semi-circular shaped, pivoting surround arm. The surround arm has a spike at its outer end. The lever arm also has a handle at the top and a foot brace about one-third from the ground. To use the device the logger forces the pair of prongs underneath a log and then locks the log onto the rocker by rotating the upper, surround, pivot arm and driving the spike into the log to secure the device around the log. The lever can then be rotated to allow the logger to raise the log up off the ground and onto the cylindrical fulcrum for cutting.
Abstract:
An improved slider block is a length of flanged channel having a cut-out in the lower web of the channel to accommodate mounting a flat bar journalled in the cut-out. The flanged channel is resilient. The flanged channel has a length sufficient to cover the length of a base plate on which the flat bar is orthogonally mounted. The sides of the channel define a cavity having a depth corresponding to the thickness of the base plate. A pair of flanges extend inwardly over the cavity from the sides of the channel so as to define a chain-receiving slot therebetween. The base plate mounts within the cavity. The base plate is welded to a chain so that when the base plate is mounted in the cavity the chain is mounted in and along the chain-receiving slot.
Abstract:
A crossover device for a finger jointer includes a chain having teeth to grip the end of a workpiece and move it perpendicular to a main conveyor direction. A main conveyor and a crossover conveyor may be driven by the same drive mechanism.
Abstract:
The present invention 10 discloses a device for singulating individual logs from groups of logs for linear or transverse processing. The present invention discloses a log singulator having a fully rotatable lifter arm member, i.e., 360 degrees rotatable, which is used to singulate logs from groups of logs. The rotatable axle of the lifter arm may be located above the upstream nullVnull of the log cradle member. Furthermore, the lifter arm of the present invention will positively push the logs over the top point of the log cradle because it is rounded at the top point, thereby allowing the tip of lifter arm to remain in contact with the log. Lifter arms with 1 to 4 lifter arm tips are disclosed.
Abstract:
The present invention relates to lumber positioning or feeding systems to be used in saw mills, planing mills and the like in order to laterally displace lumber as it is being simultaneously advanced in the forward direction. In particular, the present invention is concerned with a lumber positioner apparatus for advancing lumber, which positioner comprises a vertically displaceable angling mechanism which may be selectively activated to cause lumber to be simultaneously displaced in a lateral direction, resulting in a vectorized movement of the lumber in order that the position of the lumber may be quickly and accurately controlled for further processing, such as cutting or trimming.
Abstract:
A rotary log singulator for singulating logs received from an intake station to a downstream discharge station. The apparatus includes at least two longitudinally displaced rotating drums and at least one lifting and separating bar located adjacent to and upstream of the drums. The rotating drums have two perimeter portions defined by two chord stretches joined at an outwardly facing obtuse angle. Logs received by the drums are supported and rotationally transferred within the perimeter portions defined by the chord stretches. The lifting and separating bars are driven by a shaft connected to or synchronized with the shaft which drives the rotating drums and are displaced vertically up and down as the rotating drums rotate. The timing cycle between the lifting and separating bars and rotating drums is such that when the first chord stretch of the perimeter portions of the drums is transverse to the lifting and separating bar, the lifting and separating the bar is in a lower position allowing a log to rest on the chord stretches of the drum. As the drum rotates the log toward the discharge station, the lifting and separating bars move vertically upward to separate the downstream log from other upstream logs and advance the downstream log onto the next perimeter portion of the drum if the center of gravity of the log is downstream of the separating surface of the lifting bar. As the lifting bars move upward, they also serve as a barrier to prevent other upstream logs from reaching the drum, thereby singulating logs. In a preferred embodiment, the lifting and separating bars are horizontally adjustable to enable the apparatus to effectively singulate a wide range of log diameter sizes.
Abstract:
Apparatus is disclosed for assembling timber output at the delivery end of a feed conveyor in packages of layers. The feed conveyor delivers timber pieces in equally spaced relationship. A transfer device is provided in direct connection to the delivery end of the feed conveyor and includes at least two carrier planes movable individually and after one another in a cyclic path. One carrier plane is always in a phase of its cyclic movement so as to constitute a continuation of the feed conveyor for receiving timber pieces delivered from the conveyor to form a layer. Each carrier plane during said phase of its cyclic movement moves ahead in agreement with the feed conveyor a distance equal to the width of the timber piece during the time the feed conveyor moves a distance substantially equal to the width of the timber piece and the spacing between them until a layer is completed.