Abstract A strapping machine comprising: a table to place a package thereon disposed in the upper portion of a base section, being slidably supported by guide pieces; a band feeding device to feed a band in such a way that said band is fed and directed from the under side of said table upwardly through an opening, defined in the upper portion of said base section, in a direction perpendicular to the direction of movement of the table, so as to form a loop thereof encircling the table and the package and then directed toward the under side of the table again for the purpose to be clamped with the leading end portion of the band between the table and a clip means, and to draw back said band for tensioning thereof after the leading end portion of the band is clamped; a clip means installed under said table to clamp the leading end portion of the band with cooperation between the upper surface thereof and the lower surface of the table by rising itself upwardly toward the table with the intermediate of the leading end portion of the band; a heat sealing device adapted to melt the opposing surfaces of the overlapping portions of the tensioned band by means of a heat member attached to a press member mounted oscillatably to the base section in order to weld together the melted opposing surfaces of the overlapping portions of the band by pressing thereof with a press surface defined in the press member, and also adapted to cut the band at a point of the overlapping portions thereof positioning just under said heat sealing device after having been welded together by pressing; and a driving device to operate said table, clip means and heat sealing device.
In a strapping machine for securing a flexible band in surrounding relationship to an object, such as a package, said machine including a frame having a table slidably supported thereon, the table being adapted to have a package disposed on the upper surface thereof; clip means mounted on said frame for movement between open and closed position, said clip means including a movable clip portion disposed for coaction with the undersurface of said table for holding the leading end of a band therebetween when said clip means is in said closed position; a band feeding device associated with the table and disposed at least partially thereunder for feeding said band upwardly through an opening defined in the upper portion of the frame in a direction substantially perpendicular to the direction of movement of the table to form a loop surrounding the table and the package thereon, the band feeding device including means for drawing back the band for tensioning same after the leading end of the band has been clamped by said clip means; a heat sealing device for melting the opposed surfaces of overlapping portions of said loop and for pressing the melted overlapped portions together, said heat sealing device including a pressing member oscillatably mounted on said frame and a heat member mounted on said press member and positioned for engaging said band; and drive means Drivingly connected to said table, said clip means and said heat sealing device for causing coordinated movements thereof, said drive means including a motor for controlling the movement of said heat sealing device; comprising the improvement wherein said frame includes a plurality of sidewalls, said heat sealing device being positioned within said frame adjacent one of said sidewalls, and a manually operated control switch mounted on said one sidewall and interconnected to said motor for controlling the energization thereof.
Claim 2
Dependent Claim
307 words
In a strapping machine for securing a flexible band in surrounding relationship to an object, such as a package, said machine including a frame having a table slidably supported thereon, the table being adapted to have a package disposed on the upper surface thereof; clip means mounted on said frame for movement between open and closed position, said clip means including a movable clip portion disposed for coaction with the undersurface of said table for holding the leading end of a band therebetween when said clip means is in said closed position; a band feeding device associated with the table and disposed at least partially thereunder for feeding said band upwardly through an opening defined in the upper portion of the frame in a direction substantially perpendicular to the direction of movement of the table to form a loop surrounding the table and the package thereon, the band feeding device including means for drawing back the band for tensioning same after the leading end of the band has been clamped by said clip means; a heat sealing device for melting the opposed surfaces of overlapping portions of said loop and for pressing the melted overlapped portions together, said heat sealing device including a pressing member oscillatably mounted on said frame and a heat member mounted on said press member and positioned for engaging said band; and drive means Drivingly connected to said table, said clip means and said heat sealing device for causing coordinated movements thereof, said drive means including a motor for controlling the movement of said heat sealing device; comprising the improvement wherein said frame includes a plurality of sidewalls, said heat sealing device being positioned within said frame adjacent one of said sidewalls, and a manually operated control switch mounted on said one sidewall and interconnected to said motor for controlling the energization thereof.