Rotary extrusion blow moulding machine with tilting moulds
Rotary extrusion blow moulding machine with tilting moulds
An extrusion blow moulding machine, including several molding units borne by a carrousel rotating about a substantially vertical axis (A1), wherein each molding unit is mounted on the carrousel such that it can be tilted about a substantially horizontal axis.
More particularly, it concerns blow moulding machinery provided with several molding units carried by a carrousel that is rotatable around an appreciably vertical axis. In a known way, each molding unit has a two-part mold, both parts being movable with respect to each other between an open position and a closed position.
The blow mold machine described in this document has molding units that can slide vertically with respect to the carrousel between an upper working position and a lower retracted position. Immediately after a molding unit has seized a section of preform, and until this unit has been released below the extrusion head by rotation of the carrousel, the molding unit is moved toward its retracted position. This makes it possible to prevent the preform from spilling over onto the upper face of the mold during extrusion in a situation in which the preform or preforms are continuously extruded.
A purpose of the blow moulding machines, therefore, is to propose an improved design of a machine of the type described above, this design allowing machines to be produced that have a high rate of production.
To that end, the invention proposes a machine of the type described above, characterized in that the molding unit is mounted on the carrousel in order to be able to tilt around an appreciably horizontal axis.
The provision of tilting molding units is particularly beneficial because of the very small increase in height that this involves for the machine. In addition, a pivot connection can easily be made between the cradle and the base , which is particularly rigid, to ensure the perfect positioning of the molding unit with respect to the blow-molding units and the extrusion head .
Thus, the blow molding machine according to the invention makes it possible to expect high operating speeds while still being perfectly reliable.
Questions and Answers
If you were to ask almost any group of people what they know about blow molding machines, I would be willing to bet that very, very few have any idea whatsoever what they do or how they operate.
This article gives a brief idea about molding machine. It also tells the application which uses it. It also describe the types of moulding machine and its uses.
Professinal manufacturer of single station, twin station Automatic Blow Moulding Machines, varieties of production sizes available
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In one embodiment of the present single screw extruder, the tiles are made of carbide or tungsten-carbide. In another preferred embodiment of the present twin screw extruder, the step of securing further comprises brazing, soldering, or gluing.
A kneading disc for a single screw extruder, the disc having a central longitudinal axis and comprising a kneading body of given width twin screw extruder, given material and having a region of maximum operating stress
A method of extending the life of a single screw extruder by affixing tiles of wear-resistant material along the crest of the twin screw extruder flighting threads, and optionally grinding the hardened material to remove any sharp edges.
Kneading disc for a single screw extruder.In order to improve the wear-resistance of highly stressed surfaces of a kneading disc in a helical twin screw extruder, the exposed tips of the kneading disc are provided with inserts of an extremely wear-resistant, hard material.
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