Global Patent Index - EP 0399951 A1

EP 0399951 A1 19901128 - Method for forming a roll in the cigarette-making process and apparatus therefor.

Title (en)

Method for forming a roll in the cigarette-making process and apparatus therefor.

Title (de)

Verfahren zum Formen eines Stranges bei der Herstellung von Zigaretten und Einrichtung dafür.

Title (fr)

Procédé pour la formation d'un boudin continu dans la fabrication des cigarettes et appareil pour la mise en oeuvre du procédé.

Publication

EP 0399951 A1 19901128 (FR)

Application

EP 90810360 A 19900516

Priority

CH 201289 A 19890525

Abstract (en)

The layer of tobacco (5) is piled up against the conveyor belt (2) by the airflow (6). The trimmer (7) removes the superfluous tobacco and forms the final layer (10) which will then be wrapped in the paper to constitute the roll. The measuring unit (13) measures the thickness of the layer (5) by means of the attenuation of a ray, while the measuring unit (14) measures the degree of porosity of the layer by virtue of the pressure drop between the underside and the upper side of the layer. These two data are transmitted to the calculation unit (19) which forms the parameter (F), transmitted to the central unit (17) which supplies to the code converter (16) the pulses actuating the encoder (15) of the motor (11). The latter regulates the thickness of the layer (10). <IMAGE>

IPC 1-7

A24C 5/18; A24C 5/34

IPC 8 full level

A24C 5/18 (2006.01); A24C 5/34 (2006.01)

CPC (source: EP US)

A24C 5/1871 (2013.01 - EP US); A24C 5/34 (2013.01 - EP US); Y10S 131/906 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

CH DE GB IT LI

DOCDB simple family (publication)

EP 0399951 A1 19901128; CH 683227 A5 19940215; US 5085229 A 19920204

DOCDB simple family (application)

EP 90810360 A 19900516; CH 201289 A 19890525; US 52570290 A 19900521