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In our lives, we can often see silicone products, such as silicone gloves, door and window sealing strips, LED soft light strips, automotive glass sealing strips, human silicone, etc., it can be said that silicone products have been inseparable from our lives. However, most of the silicone products are extruded through the silicone extruder, especially the silicone tube, silicone strip, silicone shaped sheet, etc., because the silicone products produced by the silicone extruder have high production efficiency, high output and good quality. Silicone rubber extruder is the basic equipment of the silicone industry, and plays a very important role in the pipe production process. Then, let's understand the structure and composition of the silicone rubber extruder together!

Process structure of 1. silicone strip extruder

Silicone strip extruder is mainly composed of power motor, gearbox, governor, feed port, extrusion screw, extrusion head.

Analysis of Working Process of 2. Silicone Strip Extruder

1. Prepare the silicone extruder before starting up

(1) Check whether all parts of the machine are abnormal, whether the fasteners are loose, whether the pipeline leaks, etc;

(2) The filtered lubricating oil shall be filled in the gearbox, and the oil level height shall be consistent with the marking line of the oil level indicator; each lubricating point shall be filled with sufficient lubricating grease;

(3) Prepare plates and various tools;

(4) According to the production task list issued by the machine, move the plastic to the side of the feed port, and place it on the pay-off rack after checking that the wire core is qualified;

(5) Select a good mold sleeve and mold core.

2. Start the silicone strip extruder

(1) Start the drying jacket and set the temperature according to the process requirements;

(2) Start the heater and set the temperature according to the process requirements;

(3) Before the official start-up, whether there is periodic impact or other abnormal noise during operation, and whether the screw and shaft sleeve are scratched;

(4) Pass the wire core through the mold core and connect the lead wire. The lead wire passes through the drying sleeve, the spark machine and the powder box, winds 3 to 4 turns on the traction wheel, and then fixes the lead wire on the take-up reel;

(5) Calibration: Start the screw, slowly turn the speed regulating potentiometer, and after extruding the rubber, you can calibrate. The calibration is adjusted by a large bolt on the knob head. After the initial adjustment of the mold, first open a section, mark the identification direction on the surface of the cable, check whether the core is eccentric, adjust the mold can be normal production;

(6) Pay attention to equipment operation and product quality during normal production, often measure the outer diameter and observe the appearance. The cable surface shall be smooth, uniform in color and without mechanical damage, bamboo joints, impurities and other defects;

(7) After the cable is squeezed out of a reel or a certain length, the thickness and appearance of the cable should be checked repeatedly. There must be a certain distance between the outer layer of each cable reel and the side plate. Each cable reel shall be hung with a process flow card and recorded;

(8) If there is any abnormal phenomenon or abnormal noise during the working process of the silicone extruder, it should be stopped immediately for inspection and maintenance or notify the relevant departments.

3. Silicone Strip Extruder Shutdown and Precautions

(1) Cut off the power supply of traction and main engine in turn, disassemble the head, remove the rubber material, tighten the screw rubber material and then install it, so as not to corrode the machine parts and cut off the main power supply;

(2) After the mold core and mold sleeve are lowered, take out the rubber material, wipe it clean, apply grease, and hang a label marked with the aperture size to avoid collision between the mold core and the mold sleeve;

(3) Prevent hard objects such as metal from entering the barrel to avoid damage to the screw;

(4) Pay attention to cover the feed port cover after shutdown;

(5) concentrate on the boot, to prevent accidents.