How to joint rubber sealing strips to specific shapes?
We know that the rubber sealing strip is extruded by rubber extruder, and then vulcanized by a hot air vulcanizing box. However, some sealing strips need to be connected at a 90-degree angle during application. For example, the sealing strips used in car doors belong to the ring-shaped sealing strips, and the sealing strips with 90-degree butt joints are used on the car windows.
After this kind of sealing strip is produced, we need to develop the mold according to the actual application. We make the docking mold according to the section shape of the product, and then we can use the sealing strip docking machine for docking.
The rubber sealing strip butting machine, also called the sealing strip angle injection machine, uses a hydraulic pushing system to open and close the mold during production.
When the product is connected, it is necessary to use unvulcanized rubber to align the sealing strips at both ends to weld the product to complete the product welding.
The sealing strip angle injection machine must be heated and preheated before use. We put the sealing strips that need to be butted into the mold holes, and the rubber used for welding needs to choose a suitable weight and put it into the injection hole. We put the mold into the card position, then use the hydraulic pressure to close the mold and start to heat up. We can set the opening and closing time of the hydraulic system before production. We can choose the welding time according to the size of the docking product. When the time reaches we set, the sealing strip that can be successfully taken out from the hydraulic mold.
