EP 0084202 A1 19830727 - Apparatus for intermittently driving endless belt in automatic screen printing machine.
Title (en)
Apparatus for intermittently driving endless belt in automatic screen printing machine.
Title (de)
Vorrichtung zum intermittierenden Antrieb des Endlosbandes in eine automatische Siebdruckmaschine.
Title (fr)
Dispositif pour entraîner par intermittance la bande sans fin dans un machine d'impression sérigraphique automatique.
Publication
Application
Priority
EP 82300217 A 19820115
Abstract (en)
Disclosed is an apparatus for intermittently driving an endless belt by two electric motors (5-1, 5-2) in an automatic screen printing machine, which comprises a pair of rollers (1, 2), an endless belt (3) supported on the rollers, a direct current electric motor (5-1, 5-2) for intermittently driving eacn roller and means (7, 8) for setting a repeat length of the endless belt while converting it to a pulse number, means (12-1, 12-2) for detecting the actual feed length of the endless belt as a pulse number and means (9, 10, 11) for subtracting the detected pulse number from the set pulse number to stop the endless belt at the repeat length corresponding to the set pulse number. A deviation comparing counter (14) is arranged between the two pulse generators and at least one digital servo mechanism to compare the detected pulse number from the pulse generator (12-1) on the pulling roller side with the detected pulse number from the pulse generator (12-2) on the feed-out roller side and correct and control inputs to the electric motors according to the deviation, whereby any difference of the position is not produced between the two rollers at any moment during any mode of starting, running and speed reduction and therefore, no tension for driving is imposed on the endless belt.
IPC 1-7
IPC 8 full level
B41F 15/08 (2006.01); B41F 15/10 (2006.01)
CPC (source: EP)
B41F 15/085 (2013.01); B41F 15/10 (2013.01)
Citation (search report)
- [A] GB 2008032 A 19790531 - REGGIANI MACCHINE SPA
- [A] FR 2409861 A1 19790622 - TOSHIN KOGYO CO [JP]
- [A] FR 2453096 A1 19801031 - TOSHIN KOGYO CO [JP]
Designated contracting state (EPC)
CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0084202 A1 19830727; EP 0084202 B1 19850724; DE 3264803 D1 19850829
DOCDB simple family (application)
EP 82300217 A 19820115; DE 3264803 T 19820115