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Pipe Fitting Mould Specialty
- Aug 14, 2017 -

PVC pipe production line equipment functions are as follows: (1), raw material mixing: PVC stabilizer, plasticizer, antioxidants and other accessories, Pipe Fitting Mould according to the proportion of the process has joined the high-speed mixer, the material and mechanical friction from the material temperature To set the process temperature, and then the cold mix of materials to 40-50 degrees; this can be added to the extruder hopper.

(2), extruder part: the machine is equipped with a quantitative feeding device, so that the amount of extrusion and feeding capacity to match, Pipe Fitting Mould to ensure stable extrusion products. Due to the characteristics of the conical screw, the feeding section has a large diameter, the material heat transfer area and shear rate is relatively large, is conducive to the plastic material, measuring the screw diameter is small, reducing the heat transfer area and the melt Of the shear rate, so that the melt can be squeezed at a lower temperature. Screw in the barrel when the rotation, the PVC mixture plasticized to the nose, so as to achieve compaction, melting, mixing homogenization; Pipe Fitting Mould and to achieve the purpose of exhaust, dehydration. (3), extrusion die part: by compaction, melting, mixing homogenized PVC, a follow-up material by the screw to the die, squeeze the extrusion device, Pipe Fitting Mould the screw and the screw drive device The die is a pipe forming part.

4), vacuum shaping tank for the pipe of the stereotypes, Pipe Fitting Mould cooling, vacuum stereotypes on the tank with a fixed and cooling for the vacuum system and water circulation system, stainless steel box, circulating water spray cooling, vacuum stereotypes installed on the tank before and after the mobile device , High and low adjustment manual device.

(5), traction machine for continuous, Pipe Fitting Mould automatic cooling has been hardened from the pipe at the end of the pipe, frequency control.

(6), cutting machine: the length of the switch according to the required length of control, the automatic cutting, and delay the flip, the implementation of water production, Pipe Fitting Mould cutting machine to set the switch signal as a directive to complete the whole process of cutting, Pipe operation to keep the synchronization, the cutting process by the electric and pneumatic drive to complete, cutting machine with a vacuum device, the cutting debris generated in time to suck out and recovery.

(7), turn the material frame rolling action by the cylinder through the gas control to achieve, turn the rack with a limit device, when the cutting saw cut pipe, the pipe continues to transport, after the delay, the cylinder into the work, Material movements, to discharge purposes. Discontinued after a few seconds automatically reset, waiting for the next cycle.

1. Higher temperature mold forming temperature requirements (generally 80 ℃ -130 ℃ or so), in the injection into the pressure after the switch to use cooling water, Pipe Fitting Mould the mold temperature dropped to 60-70 ℃. Higher mold temperature under pressure shaping is conducive to the elimination of welding lines, Pipe Fitting Mould flow marks, product stress and other defects. So the mold in the work need to heat treatment, in order to prevent heat loss, usually in the fixed side plus insulation board.

2. Mold surface is extremely bright (usually mirror 2 or higher) Highlight mold products can be directly used for installation (assembly), without any surface treatment. So it is the mold steel and plastic materials are very high requirements.

3. Hot runner system more than the thermal nozzle of each hot nozzle must be with a needle and a separate airway, through the solenoid valve and time relay, etc. Pipe Fitting Mould to separate control, to achieve time-division into the glue, so as to achieve control or even eliminate welding The purpose of the mark, the control mode is complex.