Four compounded rubber extrusion device head

Abstract

The invention discloses a four-compound rubber extruder head for producing semi-finished products of radial tires. Extrusion openings connected with a barrel of an extruder are arranged on a head die holder of the four-compound rubber extruder head. The four extrusion openings are arranged in a ride back structure and are an upper die-upper middle die extrusion opening, an upper middle die-middledie extrusion opening, a middle die-lower middle die extrusion opening and a lower middle die-lower die extrusion opening respectively. The extrusion openings are obliquely communicated with an upperdie-upper middle die flow channel cavity, an upper middle die-middle die flow channel cavity, a middle die-lower middle die flow channel cavity and a lower middle die-lower die flow channel cavity after assembly respectively. The horizontal inclined angle of the upper die-upper middle die extrusion opening is 27 to 33 degrees, the horizontal inclined angle of the upper middle die-middle die extrusion opening is 6 to 13 degrees, the horizontal inclined angle of the middle die-lower middle die extrusion opening is -8 to -2 degrees, and the horizontal inclined angle of the lower middle die-lowerdie extrusion opening is -28 to -22 degrees. The optimal angles of extrusion openings are determined to ensure the reasonable space positions of the four pin extruders, thereby optimizing arrangementand facilitating the installation and maintenance of other support facilities.

Description

(1) Technical field: [0001] The invention relates to a rubber machine, in particular to a four-composite rubber extrusion head. (two) background technology: [0002] Four composite rubber extruder units change the original external lamination and external lamination process of tire production to multiple ways of internal lamination, so that the lamination of various rubbers with different formulas is closer and meets various production processes. It is required to optimize the manufacturing process of tires. This equipment is suitable for four-composite extrusion of semi-finished parts of radial tires. It is one of the important process equipment in the production of radial tires (especially high-quality tires). [0003] The four-composite rubber extruder unit includes four-composite rubber extruder heads and four pin-type cold-feed extruders. The extrusion port of the machine head is connected, because the barrel of the pin-type cold-feed extruder is large and long, and th...

AI Technical Summary

Problems solved by technology

[0004] To reasonably set the spatial position of the four pin-type cold-feed extruders is mainly to determine the connection angle between the barrel and the extruder head. If the connection angle is too large, the four pin-type cold-feed extruders will take up space after stretching. The position is too large, the connection angle is too small, the supporting parts of the four pin-type cold-feed extruders will interfere with each other, and the position of the frame is narrow, which is not conducive to equipment maintenance

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