DEVICE AND METHOD FOR THE ROTATIONAL ORIENTATION OF A TUBE HEAD RELATIVE TO A TUBE BODY

• US 20130014369A1
• Filed: 03/17/2011
• Published: 01/17/2013
• Est. Priority Date: 03/25/2010
• Status: Abandoned Application

• Current Assignee: Packsys Global (Switzerland) Ltd.
• Original Assignee: Packsys Global (Switzerland) Ltd.
• Inventors: Schulthess, Oskar
• Application Number:
  US13/637,158
• Publication Number:
  US 20130014369A1
• Time in Patent Office: Days
• US Class Current: 29/407.1
• CPC Class Codes: B23P 19/105 using sensing means
• CPC Class Codes: B67B 3/26 Applications of control, warning, or safety devices in capping machinery
• CPC Class Codes: B67B 3/264 positioning of the caps
• CPC Class Codes: Y10T 29/4978 Assisting assembly or disassembly
• CPC Class Codes: Y10T 29/49901 Sequentially associating parts on stationary aligning means
• CPC Class Codes: Y10T 29/53061 Responsive to work or work-related machine element
• CPC Class Codes: Y10T 29/53078 with means to fasten by frictional fitting
• CPC Class Codes: Y10T 29/53261 Means to align and advance work part

Abstract

A device for the automatic rotational orientation of a tube head (16) relative to a preferably stationary tube body (14), wherein the device has a sensor (18) for sensing a current rotated position of the tube head or tube body having a position indicator (21), the device further includes a positioning device (12, 20) which interacts with the sensor and is designed to effect a rotary movement of the tube head or of the tube body in reaction to a control signal from a control unit (22). The sensor is designed to generate a sensing signal corresponding to a rotary moment of the tube head or tube body and the control unit correlates the sensing signal with a reference signal and for generating a control signal from a characteristic value corresponding to a degree of correlation, in particular a maximum correlation or minimum correlation, for the positioning device.

Claims

1-10. -10. (canceled)

11. A device for the automatic rotational orientation of a tube head (16) relative to a preferably stationary tube body (14), comprising sensor means (18) for sensing a current rotated position of the tube head or tube body having a position indicator (21);

positioning means (12, 20), which interact with the sensor means and are designed to effect a rotary movement of the tube head or of the tube body in reaction to a control signal from a control unit (22), wherein the sensor means are designed to generate a sensing signal corresponding to a rotary movement of the tube head or tube body and the control unit has means for correlating (24) the sensing signal with a reference signal and for generating a control signal from a characteristic value corresponding to a degree of correlation, in particular a maximum correlation or minimum correlation, for the positioning means; and

the sensor means are designed for generating the reference signal by means of a reference body, which is provided in a predetermined rotated position, in particular reference tube head, and the reference signal is present in electronically stored form as predetermined signal sequence.

12. The device according to claim 11, wherein the sensor means is selected from the group consisting of an optically acting sensor, a capacitively acting sensor, an ultrasound sensor, and mixtures thereof, and are designed for generating the sensing signal via a time sequence, which corresponds to the rotary movement.

13. The device according to claim 11, wherein the sensor means are designed for digitizing and subsequent storing of the sensing signal as sequence of quantified individual signals.

14. The device according to claim 11, wherein the sensor means are designed such that at least 300 individual signals of the sensing signal are generated as basis for the correlation along the time sequence, which corresponds to a rotary movement of the tube head.

15. The device according to claim 11, wherein the means for correlating correlates the numerical determination of a correlation function of the sensing signal with the reference signal as well as for determining a characteristic value, which describes the correlation, in particular of a functional maximum or functional minimum, from the correlation function.

16. The device according to claim 15, wherein the control unit is designed such that a position of the functional maximum or functional minimum, respectively, determines the control signal for the rotary movement of the tube head or tube body in a time sequence.

17. The device according to claim 11, wherein the reference signal is specifically present for at least one tube head type.

18. A method for the rotational orientation of a tube head relative to a tube body comprising the steps:

sensing a rotated position of the tube head relative to the tube body and

carrying out a relative rotation of the tube head to the tube body as a function of the sensed rotated position, wherein the sensing of the rotated position encompasses the generation of an analog or digital sensing signal corresponding to a rotary movement of the tube head or tube body, over a time sequence, which corresponds to the rotary movement, the sensing signal is correlated with a predetermined reference signal and the rotated position is determined from a characteristic value, which describes the correlation, in particular maximum correlation or minimum correlation of the correlation, characterized in that the reference signal is generated by means of a reference body, which is preferably provided in a predetermined rotated position and is stored electronically.