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A supporting girl down-acting expire is mounted above the men perish and movements downwardly into near nearness with the guy pass away with sheet steel covered with a tensioned condition therebetween. The steel page is actually created into a predetermined form whereupon the feminine expire is relocated upwardly away from nearness using the guy perish, the anxiety released and also the sheet eliminated.
According to the embodiment of the invention disclosed in this application, the male die is positioned on a vertically movable die table which is moved upwardly as the arms are moved downwardly. For that reason, the level of your type put on the aluminum page comes from the sum of the downwards activity in the forearms which in turn causes the steel page being twisted on the guy die, along with the upwards motion from the vertically movable pass away table which the masculine expire is placed. Appropriately, the metallic sheet stays inside a reasonably central location where by it might be attained and manipulated with the stretch machine user.
Ideally, the biceps and triceps are pivoted about the carriage with a level listed below the degree of the expire dinner table surface on what the male pass away is mounted, if the expire kitchen table reaches its lowermost place.
Side clamping means are provided for applying inwardly directed forming pressure to the metal sheet at substantially right angles to the direction of the tension applied by the tensioning means, according to one embodiment of the invention disclosed in this application.
The female down-acting die is mounted for reciprocating movement on a bulldozer platen, which platen includes a plurality of clamping cylinders mounted on the apparatus carriage in spaced-apart relation around its periphery, according to another embodiment of the invention disclosed in this application. The cylinders are operatively connected with the bulldozer platen around the periphery of the platen in order to define sufficient space between the cylinders so that the metal sheet can be manually inserted therebetween into the jaws, and removed after stretch forming of the metal sheet has taken place.
Tags: Pallet stretch wrapper, robot pallet wrapper, stretch packing machine