An injection molding machine having connecting sleeves for the connection of the supporting straps of injection units which operate transverse to and into the separating groove of a casting mold of the molding machine has separate means for securing the supporting struts in their respective connecting sleeves. Each of these means has a threaded bore defined in an end of a strut, and a bore with a shoulder defined in the sleeve, with the shoulder arranged to abut the surface of the strut end. A bolt is in threaded engagement with the threaded bore and in coaxial relationship with the strut. An injection unit operating transversely to the separating groove has a base provided with bearing surfaces for sliding engagement with the top of the machine base.
The invention relates to an injection moulding machine having an injection unit with a nozzle which is laterally adjustable relatively to a mould opening. The adjustment is provided by one or both of the facilities consisting of: A. Rotatable eccentric means disposed between the injection unit and the support fixed relatively to the mould, and B. Lockable couplings between two rods, which extend substantially parallel to the axis of the injection unit and on which the injection unit is mounted, and a part fixed relatively to the mould.
A rubber shaping machine includes an upper mold, an upper middle mold, a lower middle mold, and a lower mold operated by a main oil cylinder and two auxiliary cylinders so as to open the mold in multi-steps. The machine also includes a feeding system capable of being suitably heated and cooled to facilitate the changing and cleaning of the rubber material therein and capable of preventing the rubber material from being hardened. An injection head device is disclosed which prevents the rubber material from being split.
