Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. WO2011058475 - PROCÉDÉ D'INSPECTION DE GÉLULES SCELLÉES IMPLIQUANT UN PROCÉDÉ QUI DÉTERMINE LA QUALITÉ DU JOINT DE SCELLEMENT ET ÉQUIPEMENT ASSOCIÉ POUR UNE INSPECTION EN-LIGNE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

Claims

1. Method of inspection of a filled hard capsule sealed with a solvent sealing agent, including a process for determining the quality of the seal, said process comprising

- supplying a filled hard capsule (1) sealed with a solvent sealing agent (16);

- supplying a microwave resonator (27) wherein a measuring field characterized by a resonance curve is generated;

- directing said capsule through the measuring field;

- measuring characteristics (A, B) related to the modification of the resonance curve (Cc) produced by the presence of the capsule (1 ) in the measuring field, in comparison with a reference resonance curve (CE) corresponding to an empty state of the resonator; and

- using the measured characteristics (A, B) to determine a value (θ; A', B') associated with the quality of the seal.

2. Method according to claim 1 , characterized in that it further includes a step of using said measured characteristics (A, B) to determine a seal area.

3. Method according to claim 1 or 2 further including a step of calculation of the mass (M) of the capsule as a function of said measured characteristics (A, B).

4. Method according to claim 3, characterized in that it further includes a step of calculation of the value (Α', Β') associated with the quality of the seal as a function of at least one of said measured characteristics (A, B) divided by said calculated mass (M).

5. Method according to anyone of claims 1 to 4, characterized in that said measured characteristics comprise the shift (A) and the broadening (B) of the resonance curve produced by the presence of the capsule (1) in the measuring field.

6. Method for sorting capsules downstream from a hard capsule sealing equipment (21), wherein each capsule is inspected with the aid of the method according to anyone of claims 1 to 5 and wherein said capsule is rejected for sealing defect if the value associated with the quality of the seal (θ; A', B') is lower than a predetermined threshold value (θ0; A'0, B'0).

7. Equipment for inspecting a hard capsule sealed with a solvent sealing agent, comprising

- a microwave resonator (27) adapted to generate a measuring field characterized by a resonance curve and measure, when an object is directed through the measuring field, characteristics (A, B) related to the modification of the resonance curve (Cc) produced by the presence of the object in the measuring field, in comparison with a reference resonance curve (CE) corresponding to an empty state of the resonator;

- means (23) for singulating and directing individual capsules (1 ) from a first section (31 ) upstream the resonator (27) to a second section (32) downstream the resonator through the measuring field; and

- calculation means (37) adapted to determine a value (θ; A', B') associated with the quality of the seal as a function of said measured characteristics (A, B).

8. Equipment according to claim 7, characterized in that said measured characteristics comprise the shift (A) and the broadening (B) of the resonance curve produced by the presence of the capsule (1) in the measuring field.

9. Equipment according to claim 7 or 8, characterized in that the calculation means (37) are adapted to calculate the mass (M) of the capsule as a function of said measured characteristics (A, B).

10. Equipment according to claim 9, characterized in that the calculation means (37) are adapted to calculate the value (Α', Β') associated with the quality of the seal as a function of at least one of said measured characteristics (A, B) divided by said calculated mass (M).

11. Equipment according to anyone of claims 7 to 10, characterized in that the calculation means (37) comprise a comparator adapted to compare, for each capsule, the value (θ; A', B') associated with the quality of the seal with a predetermined threshold value (θ0; A'0l B'0) and in that it further comprises rejection means (28) adapted to divert the capsule from a normal path of capsules downstream the resonator (27) if the value associated with the quality of the seal (θ; A', B') is lower than the predetermined threshold value (θ0; A', B').

12. Equipment according to claim 9 or 1 0, characterized in that the calculation means (37) further comprise a comparator adapted to compare, for each capsule,

(i) the value associated with the quality of the seal (θ; A', B') with a predetermined threshold value (θ0; AO, BO) and

(ii) the calculated value of the mass (M) with a predetermined target range ([ML M2]),

and in that it further comprises rejection means (28) adapted to divert the capsule from a normal path of capsules downstream the resonator (27) if either

(i) the value associated with the quality of the seal (θ; A', B') is lower than the predetermined threshold value (θ0; A'0l B'0) or

(ii) the calculated mass (M) is out of the predetermined target range ([Mi, M2]).