Patent ID: 7300273

Claim:
A system for forming a hollow body comprising: a machine frame including a tube extrusion device and a die; at least one closing unit comprising a first vertical closing plate and a second vertical closing plate displaceable in opposite directions such that the first and second vertical plates move towards and away from one another along horizontal posts mounted on a carriage operable to move the closing unit from a first position beneath the tube extrusion die to a second position; an upper horizontal closing plate fastened in a cantilevered manner to an upper region of the first vertical closing plate, the upper horizontal closing plate supporting an upper mold half on its lower side; a lower horizontal supporting plate fastened in a cantilevered manner to a lower region of the second vertical closing plate; a lower horizontal closing plate situated on the upper side of the lower horizontal supporting plate; a lower mold half situated on the upper side of the lower horizontal closing plate; and a hydraulic cylinder connected to the lower side of the lower horizontal supporting plate, wherein the hydraulic cylinder is capable of vertically displacing the lower horizontal closing plate; wherein, when the vertical closing plates are moved toward each other, the upper horizontal closing plate and the lower horizontal supporting plate come into an interlocking engagement with the vertical closing plate.