Bank of America has been granted a patent for a system of pullers used in extruding metals. The system includes multiple pullers equipped with gripping means to engage and grip an end portion of an extruded profile. The pullers can be translated along separate guides in opposite directions, and there are means for repositioning the pullers between the guides. The patent also includes a parking guide to house the pullers in a stopped status without hindering the translation of other pullers. GlobalData’s report on Bank of America gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Patent granted for a system of pullers for extruding metals
A recently granted patent (Publication Number: US11684960B2) describes a system of pullers for a plant that extrudes metals along an extrusion line. The system includes at least two pullers that grip the end portion of an extruded profile as it exits the extrusion press. The pullers can be translated along separate guides without contacting the rolls that support the extruded profile. The first guide allows translation in one direction, while the second guide allows translation in the opposite direction. The pullers can be repositioned between the guides using repositioning guides. The guides are separate, side-by-side, and anchored to the ground on the same side as the extrusion line. They are physically and mechanically separate, absorbing vibrations induced by the movement of the pullers without transmitting them to the other guide. A parking guide is provided to house one of the pullers in a stopped status without hindering the translation of the remaining pullers along the guides.
The means for repositioning the pullers include a first repositioning guide that can be moved between the first guide and the second guide. With the first repositioning guide in the first position, a continuous horizontal translation path is defined along the first guide, the first repositioning guide, and the parking guide. With the first repositioning guide in the second position, a continuous horizontal translation path is defined along the second guide and the first repositioning guide. The system may also include a second repositioning guide that can be moved between the ends of the first and second guides. The guides are positioned at the same height with respect to a horizontal reference plane.
The system of pullers described in the patent can be used in a plant for extruding metal profiles, where the pullers move the extruded product in traction as it exits the extrusion press. The pullers, guides, and repositioning guides allow for efficient and controlled movement of the extruded profiles along the extrusion line. The system reduces vibrations and ensures smooth translation of the pullers without interfering with the rolls that support the profiles. The inclusion of parking guides further enhances the functionality of the system by providing a space to temporarily house the pullers without obstructing the movement of other pullers along the guides. Overall, this patented system offers improved performance and flexibility in metal extrusion processes.