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A form of conveyor sortation device that utilizes a swing out arm to divert product from a conveying surface. This device does not actually contact the conveying surface, but literally impacts the side of the load bringing about a sideways change in direction to the left or right of the forward motion.
A form of conveyor sortation device that utilizes a mechanically actuated push plate to divert a product from the conveying surface. This device does not actually contact the conveying surface, but literally impact the side of the load bringing about a sideways change in direction to the left or right of the forward motion.
Moving surface or in-line diverters are an integral part of the main conveying surface and in all but one case pop up on controlled command, coming in direct contact with the underside conveying surface of the load.
An in-line diverter conveyor that has wheels that pop up between the rollers of a powered roller conveyor or between belt conveyor segments and direct sorted items onto a powered take-away line. Fairly high speed sorting, in the range of 120 cases per minute, can be achieved.
The change in conveying direction is limited to being perpendicular to the original flow. Such a system is not suited to high- speed sortation and is mainly used for a load transfer or simple directional changes. It is suited best to handling heavy loads such as full pallets.
The conveying surface consists of continuously linked slats. The linked slats move in a manner similar to a belt. Between each slat, along one side, there is a shoe that moves along with the slats. Each shoe is capable of simultaneous independent lateral movement from one side of the conveyor to the other at the same time as it continues to move forward. At the appropriate time, controls sequence as many shoes as necessary, depending on the size of the load, to move from one side of the conveyor to the other, contacting the side of the load, thus directing the load to one of multiple discharge or take-away lanes. The take-away lanes can be powered by gravity. At the end of the run, after the last take-away lane, and on the return (remember the main sort lines move like a belt), the shoes are all reset to their original side. Such sorters are capable of higher sort rates in the range of 150 cases per minute. Another name for this type of sorter is surfing sorter .
Another form of the tray sorter is where the tray is replaced by a short belt conveyor section with its direction of travel orientated perpendicular to the line of travel of the main train. At the proper moment the belt stepper motor is energized propelling its load to either side and the desired takeaway lane. See also Tray sorter .
A high speed type of sorting conveyor with sorts in the 250 cases per minute range, this type consists of a continuously moving train of independent trays that move in a straight line and recirculate in either a horizontal or vertical (over and under) closed loop. At the proper moment, controls cause the tray to tilt to either side, thereby discharging the load to the desired take away lane.
A form of conveyor consisting of a continuous chain running beneath a continuous, stationary, flanged rail. Individual carriers spaced equidistant along the length of the conveyor are suspended from the chain. The chain pulls the carriers. Vertical support is derived from the fact that the carriers are also connected to a small trolley with wheels that roll cross sections, trolleys and carriers. A few common carriers include a tray, platform or simple hook. A less common alternative to the chain drive is a worm drive.
A conveyor that moves perpendicular to the floor and provides intermittent operation of a single load-carrying platform or cage which travels up and down on steel rails or guideways. There are many configurations of vertical reciprocating conveyors (VRCs) including those with a single mast, single rail, double mast, double rail and even models which offer incline travel versus strict vertical travel. There are also numerous platform configurations ranging from a simple flat steel surface to a powered roller conveyor deck with controls that are integrated with the controls of powered feed and take away conveyor lines at the different levels.
A type of vertical conveyor that provides for continuous operation of multiple, equally spaced, load-carrying units fixed to chains that move continuously in an endless loop. With such a system the loading and unloading, usually automatic, occurs while the conveyor is running, resulting in greater throughput and an even flow of loads. This type of vertical conveyor is common in Europe
Another form of the conventional poternoster (See definition for Poternoster) is the platform conveyor that consists of multiple, equally spaced battens which form rigid horizontal surfaces in one direction (up and down) but behave like the front of a roll top desk on the return. Platform conveyor is an effective means of moving a continuous flow of pallets or other unit loads between levels. Another variation of the posternoster concept, which permits both vertical and horizontal movement of load, consists of freely swinging platforms suspended between two parallel chains.
A variation of overhead chain conveyor is "power and free". In a conventional overhead conveyor the carrier is permanently fastened to the drive chain, in the power and free case the carrier can mechanically disengage from the drive chain and essentially idle while the chain continues to move. Power and free conveyors can also be inverted so that they can be mounted to the floor, in which case the carrier or tray rides on top of the guiding rail as opposed to being suspended beneath it.
A sophisticated version of asynchronous carriers with greater flexibility inherent in the drive systems in terms of acceleration, speed of travel and the manner by which idling is achieved. One of the earliest version of car-in-track systems of a flat, platen-like carrier with four horizontally mounted wheels on each corner. These wheels run both on and against two parallel tracking rails providing support for the carrier as well as lateral guidance. The driving force is derived from a constantly spinning tube running parallel to the guidepath, beneath the carrier. A fifth drive wheel mounted beneath the carrier makes contact with the spinning tube, resulting in a variation of worm style transmission. By controlling the set angle of the drive wheel the carrier speed can be infinitely varied up to a maximum in the 400 feet per minute range.
Also referred to as a vacuum tube system. In all but the simplest of applications, the pneumatic/vacuum tube system however, such as at drive through banks, these systems are capable of very complex networks (upwards of 1000 origin/destination stations) involving branching, switching or merging. The computer control in modern systems make these systems very flexible. The carrying units appear much like a projectile that has to be opened so that the load to be transported can be placed inside. There are units installed where carriers approach 12 inches in diameter and are capable of carrying fairly large parts. The speed of a pneumatic/vacuum system averages 1500 fpm.