Device and process for applying handles apprehension on packaging films and shrink wrap packer provided with such a device

摘要

Device (1) for applying handles apprehension (M) on packaging films (P), preferably shrinkable, which are supplied on packagers (2) shrink wrap to form packets (F) of bottles (B), cans and / or similar containers (B), said device (1) application comprising: at least one application head (10) provided with at least one roller (11) for applying a plurality of handles apprehension (M), supplied in the form of web (12) and subsequently cut into sections; at least one stop mechanism (14) for operably supporting a plurality of packaging film (P) as a continuous belt (5) and subsequently cut into sections, optionally heat-shrinkable, which are supplied to a packetizer (2) wrapping respective retractable on said device (1) application is mounted, said applicator roller (11) of said engaging head (10) and said stopper mechanism (14) movable respectively to each other between an inoperative state, in said applicator roller (11) of said engaging head (10) is spaced from said stopper mechanism (14), and an operating state, wherein said applicator roller (11) of said engaging head (10 ) is disposed in said stop mechanism (14), against at least one of said packaging film (P) is provided for applying a respective handle apprehension (M) on the latter, characterized in that dich or stop mechanism (14) comprises at least one supporting belt (15), preferably wider than the width of the packaging film (P) is provided, having a rake surface (16) facing at least partially to said application head (10) for advancing said packaging film (P) that are provided on said wrapper (2) shrink wrap, providing said advancing surface (16) of said support tape (15), the operating state, a stop for said applicator roller (11) of said engaging head (10), applying said applicator roll (11) of said engaging head (10) a handle gripper (M) on each film package (P) which is supplied with said advancing surface (16) of said support tape (15) said support tape (15) according extending a development annular, substantially triangular, and being actuated so Mobile according to my sma forward direction of said packaging film (P) that are provided on said wrapper (2) of shrink wrap to transport these packaging films advancing along said application head (10), said fastener tape being provided ( 15) with: at least one movable roller (17) operatively applied to said backing strip (15) on the opposite side with respect to said rake surface (16), actuating said movable roller (17) of said movably tape support (15) according to the direction of advance of said packaging film (P) that are provided on said wrapper (2) of shrink wrap; a first idler roller (18) operatively arranged upstream of said movable roll (17) in the direction of advance of said packaging film (P) are provided, applying said first idler roller (18) said support tape (15) on the opposite side with respect to said rake surface (16); one second idler roller (19) operatively disposed downstream of said movable roller (17) in the direction of advance of said packaging film (P) are supplied and applying said backing strip (15) on the opposite side with respect to said rake surface (16), said movable roller (17) between said applicator roll (11) of said engaging head (10) and said idler rollers (18, 19) being interposed, so that development on a ring said support tape (15) having an apex (20) rounded stop disposed in said application head (10) and two vertices transmission (21, 22) separate from said application head (10) and defining the base of the triangular development, said device further comprising a roller (22 ') rotating in opposite active operably on said rake surface (16) of said support tape (15) in said first idler roller (18) or in that second idler roller (19), pre sionando said roller (22 ') rotating in opposite direction to said packaging film (P) which are supplied with said advancing surface (16) of said support tape (15) is moved to ensure adhesion of the latter.