The present invention relates to a method for the step-by-step guidance of a machine operator of an extrusion device for a film machine when changing from an application formula to a subsequent formula, comprising the following steps: identifying a formula change request, displaying the formula change request for the machine operator, displaying at least one concluding step to be performed for the application formula, identifying a confirmation of the machine operator for the at least one concluding step, displaying at least one preparatory step to be performed for the subsequent formula, identifying a confirmation of the machine operator for the at least one preparatory step, and concluding the change from the application formula to the subsequent formula.

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.

The present invention relates to a method for preparing for a change of material in an extrusion device for a film machine comprising at least one feed unit for feeding feedstock to an extruder, comprising the following steps: predetermining an end of a production order of an extrusion device, specifying a reduced changing filling level for the at least one feed unit, and maintaining the filling level of the at least one feed unit at the reduced changing filling level for the further production with the extrusion device.

A system for manufacture of a multi-colored three-dimensional object, comprising at least one tank configured to store a colorless pseudoplastic material at atmospheric pressure, at least one bidirectional pump, an extrusion nozzle having at least one opening and configured to draw thereinto at least a quantity of the color materials and/or colorless pseudoplastic material and extrude in image-wise manner the drawn material and a X-Y-Z movement system configured to move at least the extrusion nozzle in a three coordinate system wherein the extrusion nozzle draws and extrudes the pseudoplastic material through the same opening.

The present invention provides an openable corrugated hose for accommodating lines, comprising: a first corrugated hose shell, a second corrugated hose shell, a joint section, at which the first corrugated hose shell and the second corrugated hose shell are each connected to one another pivotably in a first end section, and a lip section, which is provided on a second end section of at least one of the corrugated hose shells, wherein the lip section is manufactured from a different material than the corrugated hose shells.

Systems for producing M bundles of filaments, wherein M>1, include N extruders. M spin stations, and a processor, wherein N>1. Each extruder includes a polymer having a color, hue, luster, and/or dyability characteristic, which are different from each other. Each spin station produces N bundles of filaments that form a yarn. Each spin station comprises N spinnerets through which filaments are spun from molten polymers streams received by the respective spin station and N spin pumps upstream of the N spinnerets for the respective spin station. Each spin pump is paired with one of the Nextruders. The processor is in electrical communication with the N*M spin pumps and is configured to adjust the volumetric flow rate of the polymers pumped from each spin pump to achieve a ratio of the polymers to be included in the yarn from each spin station.

A film blowing machine for producing a film web from a recycled material having a.-an extruder for melting and homogenizing the recycled material into a melt, b. an annular die for extruding a film tube, c. a guide for a melt flow between the extruder and the annular die via an annular die melt pump, for conveying the melt to the annular die, d. a tube-forming zone for longitudinal and transverse drawing of the film tube, e. a cooling means for the film tube moving in the machine direction, f. a flattening unit on the other side of the tube-forming zone for flattening the film tube into a double layer film web, g. a pair of draw-off rollers on the other side of the cooling means for drawing off the film tube, and h. the extruder is designed as a twin-screw extruder.

A die has an inner die that has a straight portion of circular columnar outer shape and a convergent tapered portion provided closer to an extrusion port side than the straight portion and an outer die that houses the inner die. A first supply passage connecting a first valve and a flow passage, a second supply passage connecting a second valve and the flow passage, and a third supply passage connecting a third valve and the flow passage are provided inside the die. Downstream side end portions of the first supply passage and the second supply passage are connected to a portion of the flow passage formed between the straight portion and the outer die and a downstream side end portion of the third supply passage is connected to a portion of the flow passage formed between the tapered portion and the outer die.

The present invention provides an openable corrugated hose for accommodating lines, comprising: a first corrugated hose shell, a second corrugated hose shell, a joint section, at which the first corrugated hose shell and the second corrugated hose shell are each connected to one another pivotably in a first end section, and a lip section, which is provided on a second end section of at least one of the corrugated hose shells, wherein the lip section is manufactured from a different material than the corrugated hose shells.

The invention relates to a method for calibrating adjusting means (120) for adjusting a nozzle slot (112) of a discharge nozzle (110) for a film track (FB) on a flat film machine (100), comprising the following steps: specifying a calibration position (KP) for the adjusting means (120), performing a controlling intervention to change the adjusting position (SP) of the adjusting means (120), acquiring the reaching of the calibration position (KP) of the adjusting means (120).