Abstract:
An apparatus for retreading tires is disclosed. The apparatus has a rotatable hub for the mounting of a buffed tire casing. The apparatus also has a cushion gum applicator that is configured to stretch a length of cushion gum onto a tire casing. Further, the apparatus has a tread dispenser that is configured to automatically dispense a length of tire tread based on the circumference of at least one of the tire casing and the tire casing plus the cushion gum. Further still, the apparatus includes a tread applicator that is configured to stretch the length of tire tread onto the cushion gum. The entire apparatus including the cushion gum applicator, the tread dispenser, and the tread applicator are integrated into a single tire bench machine.
Abstract:
The horizontal wrapping machine of the type wherein a succession of articles are fed into a traveling tube of web material which is sealed longitudinally and severed and sealed between the articles to produce individual hermetically sealed packages. A variable speed motor drives a conveyor which may be provided with article feeding flights and a switch, actuated once each revolution of a timing shaft, provides a pulse corresponding to each flight on the article feeding conveyor. In addition an encoder driven by the variable speed drive motor shaft provides a digital velocity signal used as a reference signal for servo motors that may be coupled, in combination or individually, to drive web feed rolls, longitudinal sealing wheels and one or more sealing and severing heads. A delivery conveyor transporting individual packages may, through a suitable drive train, be driven by the variable speed drive motor. The velocity and position of the servo motors is established and controlled through an industrial computer, at a percentage of the velocity of the variable speed drive motor. Thus, the digital velocity and position signal input to the computer by the encoder driven by the variable speed drive motor establishes a reference velocity and position the servo motors.
Abstract:
A tire buffer for buffing a tire casing as part of a retread operation can include a rasp pedestal having a rasp head and a texturing device. A moving assembly can be connected to the rasp pedestal for selectively moving the rasp pedestal along a pair of perpendicular axes. The rasp pedestal can rotate about a vertical axis. A tire hub assembly can be included for rotating the tire casing. The tire buffer can be operated at an operator station by interfacing with a control unit. The tire buffer can automatically buff a tire casing to achieve a predetermined tire casing profile and impart a texture thereto. The tire buffer includes a tire location mechanism and a tire measurement mechanism mounted to the rasp pedestal. The control unit can monitor an operating parameter of the rasp pedestal or the tire hub assembly during the buffing sequence, compare the actual value of the operating parameter to a predetermined target value of the parameter, and adjust an operating characteristic of the rasp pedestal, the tire hub assembly, or both such that the actual value of the operating parameter is urged toward the calculated target value of the operating parameter.
Abstract:
A tire buffer for buffing a tire casing as part of a retread operation can include a rasp pedestal having a rasp head and a texturing device. A moving assembly can be connected to the rasp pedestal for selectively moving the rasp pedestal along a pair of perpendicular axes. The rasp pedestal can rotate about a vertical axis. A tire hub assembly can be included for rotating the tire casing. The tire buffer can be operated at an operator station by interfacing with a control unit. The tire buffer can automatically buff a tire casing to achieve a predetermined tire casing profile and impart a texture thereto. The tire buffer includes a tire location mechanism and a tire measurement mechanism mounted to the rasp pedestal. The control unit can monitor an operating parameter of the rasp pedestal or the tire hub assembly during the buffing sequence, compare the actual value of the operating parameter to a predetermined target value of the parameter, and adjust an operating characteristic of the rasp pedestal, the tire hub assembly, or both such that the actual value of the operating parameter is urged toward the calculated target value of the operating parameter.
Abstract:
Disclosed is a method and apparatus, associated with a rotary transfer device having a plurality of radially extending circumferentially spaced arms, for flattening and maintaining thermoplastic web segments or bags in a flat condition at a pick-up or transfer station so that successive segments or bags are being engaged and transferred by the arms of the transfer device are free of folds or wrinkles and thus insure proper stacking on one or more upwardly extending posts at a stacking station.