The invention belongs to the technical field of hot melting connection of
silicon core pipes, and particularly relates to a hot melting connection device for an HDPE (high-density
polyethylene)
silicon core
pipe, which comprises a U-shaped outer frame, a
butt joint mechanism, a clamping mechanism and a positioning mechanism. The
butt joint mechanism is arranged on the U-shaped outer frame and controls the ends of the two
silicon core pipes on the clamping mechanism to be close to each other. The number of the clamping mechanisms is two, each clamping mechanism comprises a connecting frame connected with the
butt joint mechanism, two holding and clamping assemblies are arranged on each connecting frame, one holding and clamping
assembly is relatively fixed to the corresponding connecting frame, and the other holding and clamping
assembly is slidably connected with the corresponding connecting frame through an adjusting
assembly. Through cooperation of the U-shaped outer frame, the clamping mechanism and the positioning mechanism, the clamping mechanism can be rapidly and accurately controlled to be fixed to the optimal clamping position of the silicon core
pipe, the movement displacement of the two silicon core pipes can be accurately controlled to be the optimal displacement distance during hot melting butt joint, meanwhile, the
pipe bodies are always in a low-bending-stress state in the clamping and cooling process, and the clamping effect is good. Therefore, the connection quality of the silicon core pipe during hot melting connection is greatly improved.