Bottle caps and manufacturing tech

The main purpose of the capping machine is to tighten and loosen the caps of plastic bottles and glass bottles. The capping machine is widely used and is a very common packaging machine. In the current market, the market demand for capping machines continues to rise, so our efficiency requirements for capping machines are relatively high. However, due to limitations in technical level, scientific research strength, etc. Cover efficiency will not make much breakthrough.Plastic cap compression molding machine factory point that if the capping machine fails, not only the capping work cannot be completed, but many subsequent tasks cannot be completed. If the capping machine fails, it can be solved immediately, then the capping efficiency is also a Kind of promotion.

1. The failure of the automatic switch caused by the drift of the micro switch or the photoelectric switch, such as the failure, the working position of the position switch or the photoelectric switch can be adjusted, or the switch can be replaced.

2. The short-circuit current caused by the short circuit of the motor-level winding and the housing and the short circuit of the electrical wiring and the grounding wire can be used to check the motor on the one hand and whether the related wires are loosened on the other hand.

3. The acceleration time setting of the automatic capping machine is too short and the overcurrent fault during acceleration caused by the shock capacity exceeding the capacity of the inverter can extend the F001 value setting time appropriately, and the capacity of the electric idea cannot be changed at will.

4. The excessively high voltage during operation caused by the excessive change of the power supply voltage can be easily solved by inputting the power supply into the reactor or by appropriately reducing the power supply voltage.

Plastic bottle caps are generally divided into two types of production processes: compression molding cap production process and injection molding cap production process compression molding cap production process: the suction machine sucks the mixed material into the barrel of the compression molding machine. After the inner heating to the semi-melt plasticized state, it is extruded into the mold cavity quantitatively, the upper and lower molds are closed, compression molded and cooled to set, demold, and then through the ring cutting and padding to complete the production of compression molded caps. Plastic cap compression molding machine is used for cap compression molding process.

Production process of injection molding cover: The suction machine sucks the mixed material into the barrel of the injection molding machine, heats it to the molten plasticized state in the barrel, and then injects it into the mold cavity, cools the mold in the cavity, releases the mold, and then After cutting the ring and adding pads, the production of injection caps is completed.

The main difference between the two

1. The injection mold has a large volume, and it is troublesome to replace a single cavity; each cavity of compression molding is relatively independent and can be replaced separately.

2. There is no pouring point for the compression molded cover, which has a more beautiful appearance and better printing effect;

3. Fill all the mold cavities at one time with injection, and extrude one cap material at a time with compression molding. Compression molding extrusion pressure is very small, and the pressure required for injection molding is relatively high;

4. The injection-molded cover needs to heat the material to a molten flow state with a temperature of about 220 degrees; the compression-molded cover only needs to be heated to about 170 degrees, and the energy consumption of the injection-molded cover is higher than that of the compression-molded cover;

5. The compression molding temperature is low, the shrinkage is small, and the size of the cover is more accurate;

The plastic capping machine mold is usually divided into two parts, namely the moving mold and the fixed mold, and the two parts are based on the injection device of the mold, so as to be injection molded and poured, so The determination of the injection device as a whole is critical. In the initial stage of designing the mold, the parameters such as the type of the injection device are determined.

The type of the injection device is determined according to the finished product of the mold, and the injection amount of the injection machine, the distance between the rod after installation, the plasticization rate, the modulus of the mold, and the length of the ejection are considered. Only when the above parameters are matched with the materials to be processed, can the normal operation of the injection system be ensured during the overall operation of the mold device, and the heated resin material can smoothly pass through the main flow channel and the branch flow path, so that the pressure control during the injection molding process is Speed ​​control can be switched with free and controllable conditions.For better injection experience and rate I would advice Zhenfei Injection Molding Machine .

In addition to the technical specifications of the injection device such as parameters, the overall external structure of the injection mold is also considered to determine the injection device. From the classification point of view, the compression machine is divided into horizontal injection device, angle injection device and vertical injection device, etc., which have advantages and disadvantages in terms of operation performance, disassembly and assembly, and floor space. For example, the horizontal injection device has a horizontal clamping system, and the whole machine can realize full-automatic operation and good stability. It has been widely used in the production and processing of various types of plastic injection molds.

Plastic molding machines save energy, protect the environment and ecological problems is one of the important characteristics of today's social development, and is also very important for the economy. The low energy consumption of food plastic packaging materials in the processing of finished products, and its low processing energy requirements (usually plastic processing temperatures below 300 ° C, generally not exceeding 400 ° C), and the one-time completion of the processing process, therefore, plastics from From raw materials to processed products, the total energy consumption is lower than traditional materials.

Plastic molding machine plastic packaging materials are widely used in food packaging. In the course of its use, an energy balance study on food energy chains from abroad shows that the total energy saved by plastics for food packaging exceeds twice the energy required for the production, filling and transportation of packaging materials. In addition, high-strength, high-temperature, and anti-sterilization engineering plastic packaging containers (such as polycarbonate-based baby milk powder, water bucket) can be repeatedly disinfected and filled up to 100 times, greatly extending the service life. It has changed the consumption pattern of packaging materials for one-time use and also reduced energy consumption. Therefore, compared with various types of packaging materials, plastics generally consume less energy and produce less environmental damage. As long as the comprehensive utilization of plastic waste is strengthened, plastics should be environmentally friendly to save energy and protect the global environment. Type of packaging material. In the future, from the perspective of energy conservation and environmental protection, food plastic packaging materials will continue to play a greater role.