| 摘要 |
<p>Disclosed is a backing paper conveyance device for a printing machine, comprising an unreeling device and a reeling device; the reeling device is in power connection with the unreeling device via the backing paper; the unreeling device comprises an unreeling shaft (70), and a resistance clutch (50) fixedly disposed on a machine frame; the resistance clutch (50) generates uniform rotation resistance for the unreeling shaft (70); the reeling device comprises a reeling shaft (10), and a power clutch (302) in power connection on the machine frame; the power clutch (302) provides backing paper reeling power for the reeling shaft (10); the resistance clutch (50) and the power clutch (302) are both provided with a clutch adjustment arm; and each clutch adjustment arm consists of a spring sleeved on an adjustment shaft and an adjustment wheel rotatably disposed on the adjustment shaft. The device can effectively adjust the reeling and unreeling force so as to generate uniformity for backing paper reeling and unreeling, and prevent the printing process from being affected by the tearing caused by excessive unreeling/reeling or too great reeling force.</p> |
