Apparatus for the manufacture of work pieces constructed as cup-like, upwardly or downwardly tapering containers

Claim 1

An apparatus for carrying out the method of manufacturing work pieces preferably constructed as cup-like tapering casings from synthetic resinous material by winding flat blanks into approximately cylindrical tubes, closing the same and then deforming the same into tapering casings; said apparatus comprising work tool means operable to wind and close from flat blanks approximately cylindrical tubes, and further deforming work tool means for deforming said tubes having at least two separate heating zones and including mandrel means movable in the longitudinal direction of the tube, characterized by closing tool means operable to deform at first an open end of the tube into a flange, which flange is clamped air-tight between the closing tool means and a forming tool means during subsequent deformation of the tube by hot compressed air, wherein the other open end of the casing is pressed air-tight against the forming tool means by sealing ring means during the deformation by hot compressed air.

Claim 2

An apparatus for carrying out the method of manufacturing work pieces preferably constructed as cup-like tapering casings from synthetic resinous material by winding flat blanks into approximately cylindrical tubes, closing the same and then deforming the same into tapering casings; said apparatus comprising work tool means operable to wind and close from flat blanks approximately cylindrical tubes, and further deforming work tool means for deforming said tubes having at least two separate heating zones and including mandrel means movable in the longitudinal direction of the tube, characterized by closing tool means operable to deform at first an open end of the tube into a flange, which flange is clamped air-tight between the closing tool means and a forming tool means during subsequent deformation of the tube by hot compressed air, wherein the other open end of the casing is pressed air-tight against the forming tool means by sealing ring means during the deformation by hot compressed air.

Claim 7

An apparatus for carrying out the method of manufacturing work pieces preferably constructed as cup-like tapering casings from synthetic resinous material by winding flat blanks into approximately cylindrical tubes, closing the same and then deforming the same into tapering casings; said apparatus comprising work tool means operable to wind and close from flat blanks approximately cylindrical tubes, and further deforming work tool means for deforming said tubes having at least two separate heating zones and including mandrel means movable in the longitudinal direction of the tube, characterized in that a forming tool means against which the casing is pressed by means of hot compressed air includes at least two radially separable forming shells, wherein the forming tool means serving to impart the desired shape to the casing are heated.

Claim 8

An apparatus for carrying out the method of manufacturing work pieces preferably constructed as cup-like tapering casings from synthetic resinous material by winding flat blanks into approximately cylindrical tubes, closing the same and then deforming the same into tapering casings; said apparatus comprising work tool means operable to wind and close from flat blanks approximately cylindrical tubes, and further deforming work tool means for deforming said tubes having at least two separate heating zones and including mandrel means movable in the longitudinal direction of the tube, characterized in that a forming tool means against which the casing is pressed by means of hot compressed air includes at least two radially separable forming shells, wherein the forming tool means serving to impart the desired shape to the casing are heated.

Claim 12

An apparatus for carrying out the method of manufacturing work pieces constructed preferably as cup-like tapering containers by winding and closing approximately cylindrical tubes from flat blanks and deforming the same into tapering casings for containers, comprising: a. first means for continuously supplying flat blanks to a first rotating work wheel means on which the blanks are wound and closed into tubes, b. second means for transferring the closed tubes to a continuously operating conveyor means and for conducting the same to a second work wheel means on which the approximately cylindrical tubes are deformed into tapering casings, c. third means for transferring the deformed casings past a rotating transfer wheel means at which bottoms made at a separate work station are inserted into the casings, to a third work wheel means where the bottoms are connected with the casings, d. fourth means including work wheel means rotating with the conveyor means in which the bottoms are flanged over in the casings, and e. fifth means for removing the completEd work pieces out of the conveyor means and supplying it to an output track.

Claim 13

An apparatus for carrying out the method of manufacturing work pieces constructed preferably as cup-like tapering containers by winding and closing approximately cylindrical tubes from flat blanks and deforming the same into tapering casings for containers, comprising: a. first means for continuously supplying flat blanks to a first rotating work wheel means on which the blanks are wound and closed into tubes, b. second means for transferring the closed tubes to a continuously operating conveyor means and for conducting the same to a second work wheel means on which the approximately cylindrical tubes are deformed into tapering casings, c. third means for transferring the deformed casings past a rotating transfer wheel means at which bottoms made at a separate work station are inserted into the casings, to a third work wheel means where the bottoms are connected with the casings, d. fourth means including work wheel means rotating with the conveyor means in which the bottoms are flanged over in the casings, and e. fifth means for removing the completEd work pieces out of the conveyor means and supplying it to an output track.