US 11,866,213 B2
Method for quality assessment of a sealing section of a package, and an apparatus thereof
Hans Hallstadius, Lund (SE); Magnus Råbe, Åkarp (SE); Viktor Petersson, Hjärup (SE); Daniel Zulumovski, Malmö (SE); Håkan Andersson, Veberöd (SE); and Stefano Fantini, Reggio Emilia (IT)
Assigned to Tetra Laval Holdings & Finance S.A., Pully (CH)
Appl. No. 17/289,193
Filed by Tetra Laval Holdings & Finance S.A., Pully (CH)
PCT Filed Oct. 21, 2019, PCT No. PCT/EP2019/078505
§ 371(c)(1), (2) Date Apr. 27, 2021,
PCT Pub. No. WO2020/088963, PCT Pub. Date May 7, 2020.
Claims priority of application No. 18203794 (EP), filed on Oct. 31, 2018.
Prior Publication US 2021/0331823 A1, Oct. 28, 2021
Int. Cl. G01N 21/90 (2006.01); B65B 57/00 (2006.01); B29C 65/82 (2006.01); B29C 65/00 (2006.01); B65B 9/207 (2012.01); G01N 21/93 (2006.01); G06T 7/00 (2017.01); B29L 31/00 (2006.01)
CPC B65B 57/00 (2013.01) [B29C 65/8253 (2013.01); B29C 66/849 (2013.01); B65B 9/207 (2013.01); G01N 21/9054 (2013.01); G01N 21/93 (2013.01); G06T 7/001 (2013.01); B29L 2031/7166 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for quality assessment of a sealing section of a package, wherein the package comprises at least a robustness layer and a plastic layer, wherein the sealing section is formed by holding a first section and a second section of the package against each other while providing heat such that the plastic layer of the first and second section melt and thereby provide for that the first and second section adhere to each other, the method comprising:
capturing image data depicting the sealing section using a camera,
identifying a reference line in the image data,
identifying a sealing section boundary line in the image data,
determining a sealing section assessment feature set based on the reference line and the sealing section boundary line, and
comparing the sealing section assessment feature set with a reference feature set.