| 摘要 |
A gumming device includes a frame and a gumming roller fitted in a rotary manner to the frame. The device includes a circuit circulating a cooling fluid, the circuit including a first and second portion, the first portion extending through the roller and having two opposite ends, at least one of which is connected to the second portion. The device also includes a seal connecting the two portions of the circuit in a rotary and fluidtight manner, the gumming roller being removably connected to the second portion and including a normally-closed valve controlling the opposite ends of the first portion. The frame includes a shoulder cooperating with and maintaining the valve in an open position when the gumming roller is fitted to the frame.
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