GB909591A - Improvements in or relating to banding machines for packages - Google Patents

Abstract

909,591. Banding machines. TIMMERBEIL, P., TIMMERBEIL, H., and TIMMERBEIL, E. April 25, 1960 [April 25, 1959], No. 14469/60. Class 94(1). A package banding machine having guide means 22, 24, for directing a band 23 around a package, has a vertically adjustable boom 14 that carries mechanical driven means 15 for feeding, tensioning, and joining the band to itself. To initially maintain the band 23 within the guide means 22, 24 each is formed over part of its length into a substantially enclosed passage 32, Figs. 5 and 6. In Fig. 5 the sides and front of the passage 32 are defined by a plurality of spring biased L-shaped members 34 that can move apart when the band is tensioned around a package to permit the band to escape from the passage. Alternatively, Fig. 6, an L-shaped resilient strip 39 is secured to each side of a channel member 38 to form a substantially enclosed passage 32. Adjusting the size of the machine. To enable packages of various heights to be handled, the boom 14 has a downwardly-curved band guiding member 30 that extends into the passage 32 of the vertical arm of the guide means 22, the spring biased members 34 or the resilient sides 39 of the guide means 22 being spaced apart where the guiding member 30 extends between them as the boom 14 is moved up and down. Feeding, tensioning and securing band. The band 23 is fed around the guide means 30, 22, 24 by a knurled pinion driven by a motor 44, the band being pressed against the knurled pinion by an eccentrically mounted co-acting wheel that can be pressed by a lever 46 against the pinion. The free end of the band 23 eventual - ly enters a clamping device at 15 whereupon the lever 46 is released. To tension the band a second knurled pinion is pressed on to the band by means of a lever 50 and driven by a second motor through a slipping clutch and a telescopic splined shaft 51 permitting the device 15 to slide relatively to the boom 14. After the band has been tensioned a punch forms Z-shaped slits in the superimposed ends to join them together and a cutter severs the band from its supply.