ES178514U - Closing machine of boxes - cases. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Case-box closing machine, especially case-boxes for the packing of eggs, fruits and other articles, made of thermoplastic material and provided, on their front edges, with conjugated closing means, essentially characterized by the provision, attached to a lateral support table, on whose board are located the box-cases to be closed, with their front edges, equipped with the joining means, located precisely in the part corresponding to the machine, of a mobile head carrying heated tips by means of respective resistances located in the previous one, located and spaced in correspondence with the joint devices of the boxes, in which, by contact during a certain interval of time, they will determine welding zones by local fusion of the thermoplastic material constituting them, making the displacement of the head by telescopic introduction of two lateral arms, parallel the welding tips, respectively, are inserted into tubular housings integral with the body of the table and associated with conditioner springs of the position separated from the head, whose movement is ensured by means of a kinematic device operated by a pedal and composed of a filar element guided by a a pulley mounted on the lower part of the table top and with its other end joined to a crosspiece integral with the mobile head, this being completed with a protective covering of the welding tips and their connections, advantageously covered on their internal parts with a heat-insulating coating and equipped with flexible input terminals for the electrical supply current. (Machine-translation by Google Translate, not legally binding)