Transportador en espiral con recogida controlada

    公开(公告)号:ES2822381T3

    公开(公告)日:2021-04-30

    申请号:ES14787771

    申请日:2014-04-22

    Applicant: LAITRAM LLC

    Abstract: Un procedimiento para controlar la tensión en la sección de descarga (25) de un sistema de cinta transportadora en espiral, que comprende: accionar una cinta transportadora (20) a lo largo de una trayectoria helicoidal desde una entrada (17) hasta una salida (17') en un tambor de accionamiento de transportador en espiral (10) girado a una velocidad de tambor; accionar la cinta transportadora (20) con un eje de transmisión (15) accionado por un motor de recogida (23) que incluye una sección de descarga (25) de la trayectoria de la cinta transportadora aguas abajo de la salida (17') desde el tambor de accionamiento (10); determinar la tensión en la cinta transportadora (20) en la sección de descarga (25); controlar la velocidad del motor de recogida (23) en un modo de control de bucle cerrado para ajustar la velocidad del motor de recogida (23) para mantener una tensión constante en la cinta transportadora (20) en la sección de descarga (25); determinar la velocidad del motor de recogida (23); caracterizado por el cambio del modo de control de bucle cerrado a un modo de control de bucle abierto que controla el motor de recogida (23) para funcionar a una velocidad reducida constante cuando la velocidad determinada del motor de recogida (23) cae por debajo de un nivel de velocidad de parada predeterminado; en el que el motor de recogida (23) se controla para funcionar a la velocidad reducida constante durante un período predeterminado después del cambio de modo de control de bucle cerrado al modo de control de bucle abierto; y volver al modo de control de bucle cerrado cuando expire el período predeterminado.

    SPIRAL CONVEYOR WITH CONTROLLED TAKE-UP

    公开(公告)号:CA2908708C

    公开(公告)日:2021-03-16

    申请号:CA2908708

    申请日:2014-04-22

    Applicant: LAITRAM LLC

    Abstract: A spiral conveyor and a method for taking up slack in a modular conveyor belt traveling a helical path. The spiral conveyor includes a rotating cylindrical drive drum with parallel drive members extending from the bottom to the top of the drum on its periphery. Each drive member includes an outwardly protruding ridge extending from the bottom to the top of the drum for engaging the inside edges of the belt. A motor-driven take-up shaft and shaft-mounted sprocket set takes up slack in the belt after its release from the drum. To control tension at the discharge of the belt from the drive drum, the take-up motor is normally operated in a closed-loop control mode, but switches to an open-loop constant-speed control mode when the take-up motor stalls.

    Magnetic conveyor belt module
    16.
    发明专利

    公开(公告)号:AU2017214401A1

    公开(公告)日:2018-07-12

    申请号:AU2017214401

    申请日:2017-02-01

    Applicant: LAITRAM LLC

    Abstract: A magnetic conveyor belt module integrates a magnetic element into the body of the module to attract conveyed articles to the body. The magnetic conveyor belt module includes a recess for seating a magnetic element and a retention element for retaining the magnetic element within the recess. A cover encapsulates the magnetic element within the body of the module. A non-magnetic conveyor belt module is connected to the magnetic conveyor belt module to form a conveyor belt. The non-magnetic conveyor belt module has an upper surface that is flush with or above the upper surface of the magnetic conveyor belt module.

    Cinta transportadora de plástico modular en espiral para auto-apilamiento

    公开(公告)号:ES2594330T3

    公开(公告)日:2016-12-19

    申请号:ES13742559

    申请日:2013-07-15

    Applicant: LAITRAM LLC

    Abstract: Un módulo (14) de cinta transportadora que comprende: una porción (120) central que se extiende longitudinalmente desde un primer extremo (121) a un segundo extremo (122), lateralmente desde un primer borde (125) lateral a un segundo borde (126) lateral y en grosor desde una superficie (128) superior a una superficie (129) inferior; una primera placa (80) maciza acoplada al primer borde (125) lateral; y una segunda placa (50) lateral acoplada al segundo borde (126) lateral, caracterizado porque la segunda placa (50) lateral incluye al menos una abertura (62) para permitir el flujo de aire a través de la misma.

    Magnetic conveyor belt module
    18.
    发明专利

    公开(公告)号:AU2014324575A1

    公开(公告)日:2016-03-17

    申请号:AU2014324575

    申请日:2014-09-29

    Applicant: LAITRAM LLC

    Abstract: A magnetic conveyor belt module integrates a magnetic element into the body of the module to attract conveyed articles to the body. The magnetic conveyor belt module includes a recess for seating a magnetic element and a retention element for retaining the magnetic element within the recess. A cover encapsulates the magnetic element within the body of the module.

    Positive-drive spiral conveyor and belt

    公开(公告)号:AU2014240227A1

    公开(公告)日:2014-10-23

    申请号:AU2014240227

    申请日:2014-10-01

    Applicant: LAITRAM LLC

    Abstract: The present invention relates generally to power-driven conveyors and more particularly to spiral conveyors in which a conveyor belt is positively driven in a helical path around a rotating drive tower. One aspect of the invention provides a spiral conveyor comprising: a drive tower extending from a bottom to a top and rotating about a vertical axis; a plurality of parallel drive members extending in length from the bottom to the top of the drive tower; wherein each of the drive members includes an outwardly projecting ridge whose distance from the vertical axis varies from the bottom to the top of the drive tower; wherein each drive member includes a lower segment at the bottom of the drive tower and wherein the ridge in the lower segment is tapered along a portion of its length. A further aspect of the invention provides a spiral conveyor comprising: a drive tower extending from a bottom to a top and rotating about a vertical axis; a plurality of parallel drive members extending in length from the bottom to the top of the drive tower; wherein each of the drive members includes an outwardly projecting ridge whose distance from the vertical axis varies from the bottom to the top of the drive tower; wherein the drive tower has an upper portion with a first diameter and a skirt portion tapered outwardly away from the vertical axis toward the bottom of the drive tower; and wherein the skirt portion includes a bottom portion with a second diameter greater than the first diameter and a tapered portion connecting the bottom portion to the upper portion.

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