Solid-to-liquid supply system-the main feature of rubber injection molding machine automation

1. Accurate measurement and abundant mixing.

2. 1:1 precise ratio of A and B glue, precise quantitative and fast injection.

3. The third agent color paste pump and silicone injection machine manufacturer can be used to produce products of different colors.

4. Large-dose products can be formed at one time.

5. Instead of manual rubber training and material placement restricted by the mold.

Liquid silica gel and solid silica gel are the same as silica gel but there are many differences. This article will list the differences. One: The shape is different, liquid silica gel is liquid, and solid silica gel is solid. This is very suggestive. Liquid silicone can be processed into silicone products, and the processed products are solid. The products processed by the solid silicone material are also solid. But let us note that liquid silica gel cannot be obtained by heating solid silica gel.

Two: The composition is different. Liquid silica gel is generally made of silicone oil, while solid silica gel is made of raw rubber.

Three: the difference of components: solid silicone rubber generally only needs one component, silicone injection machine, and then participate in the high temperature vulcanization of the vulcanizing agent; liquid silica gel often has two components by itself, one of which contains a vulcanizing agent; there are also liquids Silica gel puts the catalyst and the main material in the same component. Perhaps the high temperature may encounter the moisture in the air before the vulcanization reaction occurs.

Four: Different molding methods: solid silica gel needs high temperature to react with the vulcanizing agent, and processing requires certain equipment; its molding methods include molding, extrusion, and calendering; liquid silica gel does not have to be high temperature, and some There will be repercussions at room temperature, and no equipment is required. Of course, some liquid silicone needs to be heated to respond. This kind of liquid silicone molding requires equipment, and the molding methods include injection and pouring. Kunshan Keshide Automation Machinery Co., Ltd. is an automation manufacturer of rubber injection molding machines.

Five: Different uses: Solid silicone can only be used as silicone products, while liquid silicone is used in many ways. In addition to silicone products, it can also be used for molds, bonding, sealing, and potting.

Applicable scope of production: kitchen supplies, medical supplies, electronic accessories, diving devices, etc.

The attention to the analysis of the liquid silicone injection molding process, its important contents include the characteristics of the data, the introduction of the molding process, etc.:

1. The characteristics of liquid silica gel: Liquid silica gel is a flexible thermosetting material that does not produce toxic substances, heat resistance, and high resilience. Its rheological behavior is mainly characterized by low viscosity, fast curing, shear thinning, and high Thermal expansion coefficient. Its products are characterized by good thermal stability, cold resistance, excellent electrical insulation, and no toxic substances will be emitted during incineration; therefore, it is used in health products, cars, silicone baby bottles, medical supplies, diving supplies, silicone kitchenware and silicone It has become an irreplaceable material in the production planning of mats.

2. Molding process: Liquid silica gel is a two-component liquid material, which is divided into A component and B component. The operation of the mixer fully mixes the A component and the B component in a ratio of 1:1. And because some products are designed for non-ferrous colors, it is equipped with a color pump set and a color measurement part. The A+B components, additives, colors, etc. are fully mixed and then enter the plasticizing system. This kind of plasticizing screw has the functions of homogenization and mixing together. Through the screw, the mixture is injected into the hot mold. At the mold temperature of 170-200°C, the silica gel has a curing reaction. When using a cold runner system, it is worth noting that the runner must satisfy the cold. In order to prevent glue leakage, the needle valve is installed on the surface of the mold part. When the glue injection is finished, the needle valve immediately closes the injection nozzle.

Three, the feeding system can choose the following several ways: 1. Two-way pump: can move up and down to feed, solid-to-liquid silicone injection machine, can maintain the pressure very well, because the A and B pumps are connected and synchronized by hydraulic and pneumatic Control, so the feeding system in this way is more reliable and accurate.

2. One-way pump: It is a general-purpose type and can only feed single item.

3. For the synchronous single-phase pump with check valve, the metering cylinder system is mainly used in conjunction with the single-phase pump. Rubber injection molding machine automation

Fourth, the key components of the liquid silicone rubber injection molding machine: Because of the low viscosity of the liquid silicone rubber, the reflow and leakage of the data should be considered during the processing process, so it is necessary to seal the screw; the liquid silicone rubber has a higher expansion coefficient , It will swell when heated, but will shrink slightly when cooled, so the parts cannot maintain precise side margins in the mold. Therefore, cold runner can be used for processing. Liquid silica gel should maintain a lower temperature and fluidity. The cold runner should use a closed system. In the injection cycle, the closed system should use "sealing needle" or "needle" in each runner. Valve” to control the precise measurement of LSR data. Because silicone rubber has obvious thermal expansion characteristics, the shortening rate is 2 to 4% (vulcanization temperature is 150 ℃), and silicone rubber has the characteristics of compression deformation. Rubber injection molding machine automation

Kunshan Keshide Automation Machinery Co., Ltd. mainly produces rubber and plastic machinery automation and peripheral automation equipment. It is a high-tech rubber automation enterprise integrating product development, planning, production, sales and service. The company’s products are widely used in a variety of occupations, including: home appliance industry, computer and peripheral industry, photoelectric industry, cosmetics industry, car industry, wall clock industry, precision gear industry, PET preform industry, beach table and chair industry, audio-visual music industry, guidance Optical panel industry, communication electronics industry, mobile phone industry, medical supplies industry, medicine packaging industry, food packaging industry...etc. Provide high-quality, high-efficiency and reasonable-priced automation products for the rubber machinery automation industry. Landline: 0512-36807318 Website: www.casend.net Welcome to come to consult.