Tire subsection-heating mold

Abstract

The invention discloses a tire subsection-heating mold. The tire subsection-heating mold comprises an inner steam chamber, an outer steam chamber and a tread steam chamber which are arranged on a moldbody; the inner steam chamber is right opposite to the innermost portion of a tire blank; starting from the radial center of the tire blank, the position of the steam chamber wall on the innermost side of the inner steam chamber in the radial direction is smaller than or equal to the position of the innermost side of the tire blank in the radial direction; the outer steam chamber is located on the outer side of the inner steam chamber in the radial direction of the mold; starting from the radial center of the tire blank, the radial direction of the outer steam chamber can cover the tire top of the tire blank, and the position of the steam chamber wall on the outermost side of the outer steam chamber in the radial direction is larger than or equal to the position of the highest point of the tire top of the tire blank in the radial direction; the tread steam chamber is arranged in the position, right opposite to the tread of the tire blank, of the mold in a penetrating mode; the tread steam chamber extends in the width direction of the tread; and the temperature of the outer steam chamber is T1, the temperature of the inner steam chamber is T2, the temperature of the tread steam chamber is T3, and T3 is greater than T2 but smaller than T1. The tire subsection-heating mold can be used for obtaining tires with high overall quality in a uniform vulcanization mode.

Description

technical field [0001] The invention relates to the field of tire manufacturing, in particular to a segmented heating tire mold. Background technique [0002] At present, when tire molds are vulcanizing tires, especially the vulcanization equipment tire molds used for engineering machinery radial tires, when vulcanizing engineering tires, the vulcanization temperature provided to the mold and tires is equal, but for many engineering machinery radial tires, especially It is a large-sized or giant engineering tire, and the thickness of the transverse section of the tire varies greatly. If the traditional steamer method of isothermal heating is still used for vulcanization, there will be insufficient vulcanization of the thick part of the tire section and excessive vulcanization of the thin part. Directly Affect the overall quality of the tire, reduce the service life, and even pose a safety risk. [0003] In the existing steamer vulcanization method, the high-temperature stea...

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Problems solved by technology

[0002] At present, when tire molds are vulcanizing tires, especially the vulcanization equipment tire molds used for engineering machinery radial tires, when vulcanizing engineering tires, the vulcanization temperature provided to the mold and tires is equal, but for many engineering machinery radial tires, especially It is a large-sized or giant engineering tire, and the thickness of the transverse section of the tire varies greatly. If the traditional steamer method of isothermal heating is still used for vulcanization, there will be insufficient vulcanization of the thick part of the tire section and excessive vulcanization of the thin part. Directly Affect the overall quality of the tire, reduce the service life, and even pose a safety risk

[0003] In the existing steamer vulcanization method, the high-temperature steam directly contacts the mold, which is prone to corrosion and deformation of the mold; moreover, the structure of the steamer is complex, with many seals, difficult maintenance, high manufacturing cost, and large energy consumption; the production efficiency of this vulcanization method is lower

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