Resin-feeding pipe construction and apparatus for producing a moulding material

摘要

A pipe construction for an apparatus for the production of moulding material is disclosed, having a first and a second paste-feeding pipe (10, 11), which extend parallel or substantially parallel to each other and to the widthways direction of a pair of supporting films (C, C'), the first and second paste-feeding pipe (10, 11) in each case having an upstream end (10b, 11b) and downstream end (10a, 11a), which lie opposite each other with respect to the direction of flow of the resin-like paste material. While the downstream ends (10a, 11a) of the first and the second paste-feeding pipe (10, 11) are closed, the first and second paste-feeding pipe (10, 11) are fitted in such a way that the upstream end (10b) and the downstream end (10a) of the first paste-feeding pipe (10) are in each case alongside the downstream end (11a) and the upstream end (11b). The first and the second paste-feeding pipe (10, 11) have in each case an opening element (17, 17', 17'') for the outlet of the resin-like paste material (B), so that the resin-like paste material (B) can be evenly discharged over the width of the supporting film (C, C'). The opening may have either the form of an axial row of holes, the diameter of which changes increasingly, or the form of an axially extending slot of increasingly changing width (Fig. 1).