B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/681
B29C 45/14 (2006.01)
Patent
CA 1210210
Abstract Apparatus for moulding a plastics component onto a length of flexible web material An apparatus is described for moulding a plastics component onto a length of flexible web material, particularly a paper tube coated with thermoplastic synthetic material, the apparatus compris- ing a complete injection unit (5), a nozzle (26), an injecting head portion (12), external mould portions (11,11') and a core (14) which can be moved relative to these. As a means of increasing the output of the apparatus given a continuous supply of the web material, the invention provides that the core (14) is arranged on the end of a mandrel (23) which carries the length of material (35) with it and which is part of a rotatable mandrel wheel driven in cadence about its drive shaft (3), with its mandrel (23) projecting radially in one plane, that the external mould por- tion (11, 11') has at least two mould portions (11, 11') which can be moved apart and together laterally of the mandrel (23) to free the circular path of the mandrel (23), and that the mould portions can be held together by bringing them into positive and frictional engagement with a movable head plate (12) at the nozzle side. Fig. 1
422443
Deutschbein Ulrich
Reil Wilhelm
Wallich Manfred
Ridout & Maybee Llp
Tetra Pak Developpement Sa
LandOfFree
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