Device and method for processing thermoplastic plastic having a blowing device for a conveying screw
First Claim
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1. A device for processing thermoplastic plastic, comprising:
- a storage container for receiving pieces of plastic particles or a conveying line for conveying the pieces of plastic particles;
a transfer opening;
a conveying screw connected to the storage container or the conveying line at the transfer opening;
an extruder connected to the conveying screw;
a drive for the extruder;
at least one air outlet situated opposite the transfer opening and configurable to direct an air stream emerging from the at least one air outlet toward the transfer opening;
a load recorder configured to record a load on the drive for the extruder;
influencing means for influencing the air stream emerging from the at least one air outlet comprising a valve, a slider or a flap; and
a control unit connected to the load recorder and the influencing means.
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Abstract
A device for processing thermoplastic plastic includes a storage container for receiving pieces of plastic particles or a conveying line for conveying the pieces of plastic particles, and a conveying screw following the storage container/the conveying line at a transfer opening. The device also includes an extruder following the conveying screw and an air outlet arranged opposite the transfer opening and directed at this opening. In a method for operating the device, an air stream is aligned with the transfer opening. The strength and/or the direction of the air stream is adjusted or controlled as a function of a load on the extruder.
17 Citations
18 Claims
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1. A device for processing thermoplastic plastic, comprising:
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a storage container for receiving pieces of plastic particles or a conveying line for conveying the pieces of plastic particles; a transfer opening; a conveying screw connected to the storage container or the conveying line at the transfer opening; an extruder connected to the conveying screw; a drive for the extruder; at least one air outlet situated opposite the transfer opening and configurable to direct an air stream emerging from the at least one air outlet toward the transfer opening; a load recorder configured to record a load on the drive for the extruder; influencing means for influencing the air stream emerging from the at least one air outlet comprising a valve, a slider or a flap; and a control unit connected to the load recorder and the influencing means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for processing thermoplastic plastic comprising:
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providing a device, which comprises a storage container for receiving pieces of plastic particles or a conveying line for conveying the pieces of plastic particles, a transfer opening, a conveying screw connected to the storage container or the conveying line at the transfer opening, an extruder connected to the conveying screw (3), a drive for the extruder, and at least one air outlet situated opposite the transfer opening and configurable to direct an air stream emerging from the at least one air outlet toward the transfer opening; recording a load on the drive for the extruder; and influencing the air stream emerging from the at least one air outlet, which is directed toward the transfer opening at least for some of the time, by adjusting or controlling strength and/or direction of the air stream as a function of a load on the extruder. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification