Hollow sound attenuation spiral pipe extrusion mold
A technology of sound-absorbing spiral pipe and extrusion die, which is applied in the field of plastic machinery, can solve the problems that the pipe can not achieve the effect of sound-absorbing, the water flow cannot flow against the pipe wall, and the noise pollution of the surrounding environment, so as to achieve convenient and reliable installation and save materials. , the effect of low cost
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[0010] The invention relates to an extrusion die of a hollow sound-absorbing spiral pipe, such as Figure 1-Figure 3 As shown, it includes a connection seat 1 installed on the head of the extruder, the connection seat 1 is connected to the head body 3, the outer wall of the head body 3 is installed with a die 7, and a mandrel 8 and a hollow core strip 10 are installed in the die 7 , the connecting seat 1 and the head body 3 are provided with a shunt cone 4, the shunt cone 4 is connected to the current collecting cone 5 through the shunt plate 2, and a shunt cavity 17 is formed between the shunt cone 4 and the connecting seat 1, and the current collecting cone 5 A collecting cavity 18 is formed between the head body 3, which is characterized in that a rotating shaft 6 is installed in the collecting cone 5, the rotating shaft is driven by power, the rotating shaft is connected to the mandrel 8, and a spiral core is installed on the outer wall of the mandrel 8 Stick 9. In this t...
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