UNSTACKER DEVICE FOR UNSTACKING FLAT ARTICLES, WITH DETECTION OF THEIR TRACES
First Claim
1. An unstacker device (1;
-
100) for unstacking flat articles, said unstacker device comprising;
a magazine (3;
103) in which the flat articles (2;
102) to be unstacked are disposed on edge and in a stack facing an unstacking plate (4;
104) and against a jogging edge (5;
105), the unstacking plate (4;
104) being arranged to separate a first article (2A) of the stack from the other articles (2, 102) of the stack and to drive it in a certain unstacking direction (A;
C) that is substantially perpendicular to the jogging edge (5;
105);
a conveyor (7;
109) suitable for conveying the unstacked articles in series and on edge, the conveyor having an inlet (7A;
109A) disposed downstream from the jogging edge (5;
105) relative to the unstacking direction (A;
C); and
retaining means (8;
111) disposed substantially between the jogging edge (5;
105) and the inlet of the conveyor (7A;
109A) and that are actuated to exert a retaining force on a face of an article (2A, 2B) moving in the unstacking direction (A;
C) between the jogging edge (5;
105) and the inlet of the conveyor (7A;
109A), which retaining force opposes movement of said article in the unstacking direction (A;
C), said unstacker device being characterized in that it further comprises a detector device (9, 10;
110, 112) suitable for sensing the trace of each unstacked article moving between the jogging edge (5;
105) and the inlet of the conveyor (7A;
109A) and for analyzing said trace so as to detect the presence of a plurality of articles moving together, and, on the basis of such detection, so as to actuate said retaining means (8;
111) for the purpose of separating the articles that are moving together.
1 Assignment
0 Petitions
Accused Products
Abstract
The unstacker device (1) for unstacking flat articles comprises: a magazine (3) in which the articles (2) to be unstacked are disposed on edge in a stack against a jogging edge (5) and facing an unstacking plate (4) arranged to separate a first article (2A) and to drive it in a certain unstacking direction (A) that is perpendicular to the jogging edge (5); a conveyor (7) for conveying the unstacked articles, the conveyor having an inlet (7A) downstream from the jogging edge (5); and retaining means (8) disposed between the jogging edge (5) and the inlet of the conveyor (7A) and actuated to exert a retaining force on an article (2A, 2B), which retaining force opposes movement of the article. The device further comprises a detector device (9, 10) suitable for sensing and analyzing the trace of the article moving between the jogging edge and the conveyor so as to detect the presence of a plurality of articles moving together, and, on the basis of such detection, so as to actuate said retaining means for the purpose of separating said articles.
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Citations
10 Claims
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1. An unstacker device (1;
-
100) for unstacking flat articles, said unstacker device comprising;
a magazine (3;
103) in which the flat articles (2;
102) to be unstacked are disposed on edge and in a stack facing an unstacking plate (4;
104) and against a jogging edge (5;
105), the unstacking plate (4;
104) being arranged to separate a first article (2A) of the stack from the other articles (2, 102) of the stack and to drive it in a certain unstacking direction (A;
C) that is substantially perpendicular to the jogging edge (5;
105);a conveyor (7;
109) suitable for conveying the unstacked articles in series and on edge, the conveyor having an inlet (7A;
109A) disposed downstream from the jogging edge (5;
105) relative to the unstacking direction (A;
C); andretaining means (8;
111) disposed substantially between the jogging edge (5;
105) and the inlet of the conveyor (7A;
109A) and that are actuated to exert a retaining force on a face of an article (2A, 2B) moving in the unstacking direction (A;
C) between the jogging edge (5;
105) and the inlet of the conveyor (7A;
109A), which retaining force opposes movement of said article in the unstacking direction (A;
C), said unstacker device being characterized in that it further comprises a detector device (9, 10;
110, 112) suitable for sensing the trace of each unstacked article moving between the jogging edge (5;
105) and the inlet of the conveyor (7A;
109A) and for analyzing said trace so as to detect the presence of a plurality of articles moving together, and, on the basis of such detection, so as to actuate said retaining means (8;
111) for the purpose of separating the articles that are moving together. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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100) for unstacking flat articles, said unstacker device comprising;
Specification