摘要:
The invention relates to a device for feeding and tensioning the strap in strap applying machines, of the type in which the strap (R) is moved forward and fed between a pair of wheels, one being a drawing wheel (1) rotated by motor means and the other being an idly rotating contrast wheel (2) pressed against the first wheel through the strap (R). The drawing wheel (1) is caused to rotate by an epicyclic train, the free element (9) of which is connected by a mechanical drive to the shaft (8) of the contrast wheel (2), while the contrast wheel (2) is mounted idle onto an eccentric pin (7) of said shaft (8). Said mechanical drive comprises a movable control element (17) being apt to act elastically on the shaft (8) of the contrast wheel (2) in order to cause the rotation thereof.
摘要:
A strapping system for a wrapping apparatus with a horizontal conveyor (T) is disclosed, of the type wherein a ring of plastic strap (R) is tightened around a travelling load to be wrapped (P), while the load moves along the conveyor. The strapping system comprises in particular a welding device for a plastic strap, wherein a heated blade (34, 106) is arranged for a substantially longitudinal relative movement with respect to the strap (R) and wherein at least one pressure element (103, 12a) is further provided, arranged so as to impart a pressure in a movable operating position with respect to the strap flaps and which acts downstream of the operating position of the movable heating blade (34, 106).
摘要:
The present invention relates to a combined hooding apparatus for packaging by means of a plastic sleeve of the type comprising a support frame on which there is provided: a system for forming a hood of heat-shrinkable plastic material obtainable from a tubular material folded in pleated fashion; a system for supplying said hood to a delivery point arranged at the top of said support frame; a device for fitting said hood, apt to pick up the hood from said system for supplying and fit it onto a load to be wrapped; and an annular structure which is movable vertically on said frame and on which there is fixed a circle group of burners inside which heating of said heat-shrinkable hood is performed, wherein said annular structure is suspended from a top section of said support frame by means of first raising means and is pivotably mounted on a support bracket displaceable vertically on a column of said support frame by means of second raising means, said annular structure being able to be stowed down by pivoting about an axis of rotation of said support bracket.
摘要:
The present invention relates to a combined hooding apparatus for packaging by means of a plastic sleeve of the type comprising a support frame on which there is provided:
a system for forming a hood of heat-shrinkable plastic material obtainable from a tubular material folded in pleated fashion; a system for supplying said hood to a delivery point arranged at the top of said support frame; a device for fitting said hood, apt to pick up the hood from said system for supplying and fit it onto a load to be wrapped; and an annular structure which is movable vertically on said frame and on which there is fixed a circle group of burners inside which heating of said heat-shrinkable hood is performed, wherein said annular structure is suspended from a top section of said support frame by means of first raising means and is pivotably mounted on a support bracket displaceable vertically on a column of said support frame by means of second raising means, said annular structure being able to be stowed down by pivoting about an axis of rotation of said support bracket.
摘要:
in a machine for packaging pieces (T) of equal size, particularly tiles and bricks in general, provision is made of a rotary vice (1) apt to form regular packs of pieces being fed irregularly. Said rotary vice (1) comprises a pair of opposed jaws (3, 4) with a plurality of arms apt to perform in a discontinuous manner movements of rotation and of mutual approach and parting around and along the axis which joins the geometrical centres of said jaws, said movements being controlled in an automatic and coordinate manner so as to allow separately the gripping, the conveyance with rotation by 90° and the release of such pieces (T), one at a time and in rapid succession, from a conveyor belt (2) which feeds them irregularly to a conveyor belt (6) onto which they are fed arranged in packs.
摘要:
A strapping head for a strapping machine is disclosed, comprising a containment frame (C) suitable to house at least a strap launch/rewind path defined by a launch/tensioning assembly (1) comprising a plurality of driving wheels (10, 11, 12, 13, 14, 15) of said strap, a welding assembly (3) and a gripping and cutting device (2) comprising locking grippers, a moving abutment plate and a cutter, said driving wheels of the launch/tensioning assembly being brought into rotation by a first actuation motor (M 1 ), wherein all of said launch/tensioning assembly (1), welding assembly (3) and gripping and cutting device (2) have driving members driven into movement through a single linear cam (4) apt to move alternately in the longitudinal direction through a second actuation motor (M 2 ) and having cam profiles both on an horizontal plane and on a vertical plane, and said linear cam (4) is actuated by said second driving motor (M 2 ) being integral in rotation with screwed spindle transmission means mutually cooperating with screw nut means integral with said linear cam (4).
摘要:
A strapping system for a wrapping apparatus with a horizontal conveyor (T) is disclosed, of the type wherein a ring of plastic strap (R) is tightened around a travelling load to be wrapped (P), while the load moves along the conveyor. The strapping system comprises in particular a welding device for a plastic strap, wherein a heated blade (34, 106) is arranged for a substantially longitudinal relative movement with respect to the strap (R) and wherein at least one pressure element (103, 12a) is further provided, arranged so as to impart a pressure in a movable operating position with respect to the strap flaps and which acts downstream of the operating position of the movable heating blade (34, 106).