Induction sealing device and corresponding method for...

B - Operations – Transporting – 29 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B29C 65/02 (2006.01) B65B 51/22 (2006.01) B65B 57/00 (2006.01)

Patent

CA 2519721

An induction sealing device which may be used for producing packages of pourable food products by transversely sealing a tube (13) of sheet packaging material having at least one layer (12) of induction-heatable material covered with plastic material (16). The sealing device has: a generator (3) for generating an alternating power signal S(.omega.); an inductor (4) receiving the alternating power signal S(.omega.) to induce a parasitic electric current in the layer (12) and locally melt the plastic material (16) to form a transverse seal; and a matching circuit (7) for achieving optimum power transfer between the generator (3) and the inductor (4). The matching circuit (7) includes an inductive-capacitive circuit, in which the capacitance of a variable-capacitance capacitive element (20, 24, 25, 26, 27) is adjustable so that the current-voltage phase angle is close to zero.

L'invention concerne un dispositif de thermoscellage par induction, pouvant être utilisé pour la production d'emballages de produits alimentaires liquides, en scellant transversalement un tube (13) d'une feuille de matériau d'emballage ayant au moins une couche (12) d'un matériau pouvant être chauffé par induction recouvert d'une matière plastique (16). Le dispositif de scellage comprend : un générateur (3) destiné à générer un signal de puissance alternatif S (.omega.) ; un inducteur (4) recevant le signal de puissance alternatif S (.omega.) de manière à induire un courant électrique parasite dans la couche (12) et fondre localement la matière plastique (16) pour former un joint transversal ; et un circuit d'adaptation (7) destiné à réaliser un transfert de puissance optimum entre le générateur (3) et l'inducteur (4). Le circuit d'adaptation (7) comprend un circuit inductif-capacitif, dans lequel la capacité d'un élément capacitif à capacité variable (20, 24, 25, 26, 27) peut être réglée de façon que le déphasage courant-tension soit voisin de zéro.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Induction sealing device and corresponding method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Induction sealing device and corresponding method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Induction sealing device and corresponding method for... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2044967

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.