Adjustable mouth plate

Abstract

The invention discloses an adjustable die plate, which belongs to the technical field of tire extrusion production. Its technical scheme is as follows: including a cover plate and a chassis, the chassis is provided with four upwardly protruding sides, the chassis is provided with through holes, and the sides of the holes are provided with upwardly protruding bosses; the cover plate corresponds to The position of the hole on the chassis is also provided with a hole of the same shape, and the side of the hole of the cover plate is also provided with a boss; There is a gap between them; a deformable sealing sheet is also included, the upper end of the sealing sheet is fixed on the boss of the cover plate, the lower end is fixed on the boss of the chassis and the sealing sheet covers the gap between the two bosses. The invention improves the sensitivity and accuracy of the adjustable mouth plate under the condition of ensuring the stable operation of the mouth plate, and at the same time reduces the manufacturing and maintenance costs of the mouth plate.

Description

technical field [0001] The invention relates to the technical field of tire extrusion production, in particular to an adjustable die plate. Background technique [0002] In order to improve the performance of automobiles and adapt to various complex working conditions, tire designers continue to introduce new tire structures to improve the working performance of tires. As an indispensable and important structure in the tire manufacturing process, the designs of treads and sidewalls are also becoming more and more diverse. change. At present, most parts such as treads and sidewalls are prepared by extruding with an extruder, and the die plate is an important device for controlling the size of each rubber part. Its accuracy and sensitivity are of great importance to the manufacture of rubber parts. extremely important. [0003] At present, most of the mouth plates used and designed by various tire companies at home and abroad adopt the modular design method, that is, various...

AI Technical Summary

Problems solved by technology

This type of mouth plate design method has the following four defects: 1) The adjustable sensitivity of the mouth plate is low, and its adjustable limit is limited by the processing difficulty of the module size; 2) During the adjustment process, the sealing performance of the mouth plate decreases , the rubber material is easy to overflow from different modules, 3) the maintenance cost is high, once the plate structure is damaged, the repair cost is extremely high, 4) the adjustment accuracy is low, the adjustment accuracy of the mouth plate is limited by the number and size of the modules, and the realization of relatively high Large precision adjustments are extremely expensive

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