The present innovation concerns pelletizing system, comprising a supporting rail (3); a pelletizer (5) that is suspended from the supporting rail (3); a suspension base (2); a supporting arm (10) that is supported at a first end on the suspension base (2) by means of a first swivel joint (11) and is hinged to the supporting rail (3) at a second end by means of a second swivel joint (12); and an articulated arm (20) with a first articulated arm branch (21), which is connected to a second articulated arm branch (22) by a third swivel joint (23), wherein the first articulated arm branch (21) is supported on the suspension base (2) by means of a fourth swivel joint (24), and the second articulated arm branch (22) is hinged to the supporting rail (3) by means of a fifth swivel joint (25), wherein the first through fifth swivel joints (11, 12, 23, 24, 25) each have an essentially vertical swivel axis.

The invention relates to a device and a method for filtering viscous or highly viscous liquids, in particular plastics melts, using an oscillating filter plate.

An extrusion die includes a first die body having a first lip, and a second die body having a second lip. A lip adjustment assembly is mounted to the first die body and configured to adjust the position of the first lip relative to the second lip to thereby adjust a thickness of the extrudate that exits the gap. The lip adjustment has translating unit that includes translator, a mounting member coupled to the translator, and a rod coupled to the mounting member so that the translator is fixed with respect to the rod. The mounting member is configured to be accessible from the exposed end to decouple the translator from the rod so as to remove the translator from the lip adjustment assembly.

An interchangeable unit adapted to couple to a computer numerical control (CNC) machine is disclosed comprising a holder that couples to a spindle of the CNC machine, a controller, wherein said controller is configured to receive the rotational speed of the spindle as an input, and a material processing unit, wherein said material processing unit executes a first function in response to a first rotational speed range of the spindle and executes a second function in response to a second rotational speed range of the spindle.

A heat-insulating shroud for facilitating temperature control of a heated article includes a flexible cover, made from a heat-insulating material, for covering a surface of the heated article, at least one air inlet defined in a first section of the flexible cover, and at least one air outlet defined in a second section of the flexible cover. In a cooling mode of operation, the flexible cover defines an air channel over the surface of the heated article for channeling an air stream from the air inlet(s) over the surface of the heated article towards the air outlet(s). The channeling of the air stream facilitates cooling the heated article. In a heat-conservation mode of operation, the flexible cover of heat-insulating material insulates the heated article from heat loss. Each air outlet may have a closure that opens during the cooling mode of operation and closes during the heat-conservation mode of operation.

The present invention relates to a filtering device for fluids, in particular thermoplastics, comprising a screen carrier (2) which has a rotationally cylindrical outer face (41) and is mounted rotatably in a rotationally cylindrical recess (5), adapted to its circumference, of a stationary housing (3) and in which a number of screening nests (6) having filter arrangements (7) are formed along its circumference. According to the invention, there is provision whereby the screen carrier (2) is penetrated by a rotationally cylindrical core part (1) and is mounted rotatably on this, the core part (1) and the housing (3) being designed to be stationary and fixed in terms of rotation with respect to the rotatable screen carrier (2).

A sizer for cooling an extrudate, which includes a core and a housing. The core includes an extrusion channel which accommodates the extrudate, a core cooling channel, and a core vacuum channel in fluid communication with the extrusion channel. The housing includes a housing cooling channel and a housing vacuum channel. The core cooling channel is in fluid communication with the housing cooling channel, and the core vacuum channel is in fluid communication with the housing vacuum channel.

An air ring has a main body including a plenum through which pressurized air enters the air ring, the main body including a generally circular interior that is unobstructed vertically above the main body. A generally circular forming-cone assembly is received in the generally circular interior of the main body, and includes at least one annular lip defining a passage through which pressurized air from the plenum exits the air ring for impingement upon the polymer tube. A plurality of fasteners secure the forming-cone assembly in the interior of the main body, the fasteners and forming-cone assembly being unobstructed vertically above the air ring, wherein the fasteners are accessible from vertically above the air ring and the forming-cone assembly is removable from the main body by vertical lifting without removal of other components from the air ring.

A system for optimizing the multi-extruder deposition process in a 3D printer including multiple extruders requires each extruder to have a body including an outer thermal insulation shell; the shell allowing the inlet/outlet of a fluid for the active and controlled refrigeration of the extruder. A method for optimizing the multi-extruder deposition process in a 3D printer with multiple extruders involves managing the temperature of each extruder using active refrigeration sized so as to have a sudden control of the cooling ramp and to manage the viscosity of the material in the event of extruder change. For the entire duration of the printing with another extruder, the unused extruder nozzle remains in a limited range around the extrusion temperature, thus eliminating downtime, while the solidified filament from the sudden forced cooling is pulled back into a low temperature nozzle area where it does not degrade during non-use.