Special die for producing windowpane run channel sealing strip

Abstract

The invention discloses a special die for producing a windowpane run channel sealing strip, which is composed of three extrusion die sheets. The three die sheets are provided with a sealing strip matrix cavity with a set shape respectively, and the positions of the die sheets correspond to each other; the second extrusion die sheet is provided with die isolation walls on the upper part of the left and right sealing clamping piece cavities and the bottom cavity of the sealing strip matrix cavity; and a composite material glue inlet channel is formed on the back of the second extrusion die sheet. Difference between the third extrusion die sheet and the first extrusion die sheet is that the upper left cavity of the sealing strip matrix cavity is a left composite sealing clamping piece cavity, the upper right cavity of the sealing strip matrix cavity is a right composite sealing clamping piece cavity, and the bottom of the sealing strip matrix cavity is a composite bottom cavity. The invention adopts two extruders and realizes one-time co-extrusion molding; the processing process is simple, and the product has smooth appearance and light weight; as the sealing strip is installed in the windowpane run channel, the sliding resistance is small and the abrasion resistance and the sealing performance are high; and the invention also solves the problems of abnormal sound, jamming, unsmoothness and the like when the windowpane is lifted and fallen.

Description

technical field [0001] The invention relates to a mold, in particular to a mold for producing sealing strips of automobile glass run grooves. Background technique [0002] With the development of the national economy, the prosperity of commerce and the continuous improvement of people's living standards, the number of cars is increasing day by day. The sealing performance of automobile glass windows is one of the elements that affect the quality of automobiles. The currently used automotive window seals are made of ordinary rubber due to their unreasonable structure, which not only has poor sealing performance, but also has large sliding resistance when the glass window is raised and lowered, causing problems such as abnormal noise, jamming or unevenness. [0003] After years of research, the applicant has developed a new type of automotive glass run channel sealing strip, which has the advantages of simple processing technology, smooth appearance, light weight (30% lighter...

AI Technical Summary

Problems solved by technology

Due to the unreasonable structure, the currently used sealing strips for automotive glass windows are made of ordinary rubber, which not only has poor sealing performance, but also has large sliding resistance when the glass window is raised and lowered, causing problems such as abnormal noise, jamming or unevenness.

[0003] After years of research, the applicant has developed a new type of automotive glass run channel sealing strip, which has the advantages of simple processing technology, smooth appearance, light weight (30% lighter than similar products), and is installed in the automotive window glass run channel Small sliding resistance, wear resistance, good sealing performance, and also solves the problems of abnormal noise, jamming and unevenness when the car glass is raised and lowered

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