| 摘要 |
Manufacturing line consists of feed post for droppers, extrusion head for hose, and calibration unit to shape hose after insertion of droppers. It also has tube through which droppers pass, situated in line with extrusion axis. The manufacturing line (1) consists of a feed post (2) for the droppers (4), e.g. in the form of injection-moulded plastic bushes with labyrinth channels, an extrusion head (6) for the hose, and a calibration unit (10) to shape the hose after insertion of the droppers. It also has a tube (36) through which the droppers (4) pass, situated in line with the extrusion axis. The tube extends from an upstream position partly into the extrusion head, and downstream partly into the calibration unit or almost to its outlet, with the position of the tube end (40) adjustable axially to take into account the position of the hose at the outlet from the calibration unit and the point at which the droppers are best engaged with the hose. |
