CLOSING ANGLE MEASUREMENT WITH TORQUE

• US 20180202802A1
• Filed: 07/29/2016
• Published: 07/19/2018
• Est. Priority Date: 07/30/2015
• Status: Active Grant

• Current Assignee: Steinfurth Mess-Systeme GmbH (Industrial Physics Holdings, LLC)
• Original Assignee: Steinfurth Mess-Systeme GmbH (Industrial Physics Holdings, LLC)
• Inventors: ANGRES, Johann, FALKENSTEIN, Martin
• Granted Patent: US 11,047,676 B2
• Time in Patent Office: Days
• CPC Class Codes: B67B 3/261 Devices for controlling the tightening of threaded caps, e.g. testing the release torque torque testers in general G01L5/00
• CPC Class Codes: B67B 3/264 positioning of the caps
• CPC Class Codes: G01B 11/26 for measuring angles or tapers; for testing the alignment of axes
• CPC Class Codes: G01L 3/02 Rotary-transmission dynamometers
• CPC Class Codes: G01L 5/24 for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed

Abstract

The present invention relates to a method for the particularly automated measurement of a closing angle of a lid (110) of a container (100) particularly a bottle lid (110) with a screw thread (120) comprising the following steps:

• a) Positioning of the container (100) and determining of a starting position,
• b) Turning of the lid (110) from a closing position (I) into the direction of an open position (II) of the lid (110),
• c) Detection of an open position (II) of the lid (110) and a corresponding open position angle β,
• d) Calculation of the closing angle α of the lid (110) on the basis of the open position angle β and particularly, a lid parameter.

Claims

1. A method for the measurement of a closing angle of a lid of a container with a screw thread comprising the following steps:

a) Positioning of the container and determining of a starting position,

b) Turning of the lid from a closing position into the direction of an open position of the lid,

c) Detection of an open position of the lid and a corresponding open position angle β

,

d) Calculation of the closing angle α

of the lid on the basis of the open position angle β

.

2. The method according to claim 1,

wherein

a lid movement in vertical direction is detected during the performance of the steps a) to d).

3. The method according to claim 1,

wherein

an opening torque, is measured into the direction of the open position.

4. The method according to claim 1,

wherein

a rupture moment is measured for a sealing of the lid.

5. The method according to claim 1,

wherein

in a further step 3) the lid is at least turned about 320°

exceeding the open position into at least a control position.

6. The method according to claim 1,

wherein

the lid parameter is a sum from a lid angle γ

and an angle constant.

7. The method according to claim 1,

wherein

the lid angle γ

is at least a geometric value of the lid and a value of approximately between 1° and

180°

, preferably between 5° and

50°

, preferred between 7° and

25°

.

8. The method according to claim 1,

wherein

the lid is configured cylindrical, wherein the lid comprises a diameter of approximately 10 mm to 500 mm, preferably between approximately 20 mm and 200 mm, preferred between 25 mm and 150 mm.

9. The method according to claim 1,

wherein

the turning movement comprises between approximately 0.01 rpm and 100 rpm, preferably between approximately 0.05 rpm and 50 rpm, preferred between approximately 0.08 rpm and 20 rpm.

10. The method according to claim 1,

wherein

at least the lid or the container comprises at least one marking, wherein the marking is optically recognizable and thereby a lid movement is detectable.

20. The method according to claim 1 wherein in step d the closing angle α

of the lid is calculated on the basis of the open position angle β and

a lid parameter.

11. A device for the measurement of a closing angle of a lid of a container with a screw thread comprising

at least one retaining device for positioning the container

at least one grip unit for at least the form or force fitting acceptance of the lid of the container

at least one of the following sensors:

turning torque sensor at least for measuring an opening torque of the lid, angle sensor for the recognition of a least one open position angle, height sensor for the recognition of at least one lid movement, temperature sensor, pressure sensor for the recognition of at least one inner pressure of at least the container or the lid

and at least one electronic unit and at least one drive.

12. The device according to claim 11,

wherein

the torque sensor is a torque receiver.

13. The device according to claim 11,

wherein

the angle sensor is a turning angle transmitter.

14. The device according to claim 11,

wherein

the height sensor is a path sensor.

15. The device according to claim 11,

wherein

the temperature sensor is at least a NTC thermistor, a PTC thermistor, a semiconductor, a thermocouple, an optical sensor or a bimetal.

16. The device according to claim 11,

wherein

the pressure sensor is at least a piezoresistive sensor, piezoelectric, a hall element, a capacitive sensor, an optical sensor or an inductive sensor.

17. The device according to claim 11,

wherein

at least one sensor is integrated into the drive.

18. The device according to claim 11,

wherein

the electronic unit comprises at least a control element or a display element.

19. The device according to claim 11,

wherein

the electronic unit comprises a memory in which the method according to the invention is storable.