| 摘要 |
<p>The invention is a new mixing and injection unit for polyurethane with two or more liquid components with cylindrical mixing chamber (1), the bottom of which is provided with a gate and an injection hole (4.1), and provided with a rotating mixing device comprising a disc (2.2) with one or more pins (2.3) on the bottom. The upper part of the disc (2.2) is provided with a tubular control rod (3.1) that comes out of the mixing chamber (1) on the side opposite the mixed substance injection hole (4.1) and whose upper part is provided with a pulley (2.4) to receive the rotary motion. Inside the mixing chamber there is a cleaning device (3) comprising a shifting disc (3.2) provided with vertical holes (3.21) with female geometry identical to the vertical pins (2.3) of the mixing device.</p> |
