Rapid conversion function of liquid packaging production line

Many consumer products rely on raising the audience's attention rate to improve the market competitiveness, and the content update rate is much lower than the constant change of packaging containers. However, in today's fierce market competition, traditional high-speed production lines that are suitable for mass production can no longer fully meet the needs of companies. Enterprises must find new production technologies to adapt to the market changes in products with multiple varieties and small and medium batch sizes. This problem has emerged in the beverage industry and the daily chemical industry, so the versatility of liquid packaging equipment design came into being.

Suitable for a variety of bottle filling machines

Due to the different filling materials of the liquid packaging, the specifications and shapes of the containers are different, and the sealing methods are diversified, basically belonging to special machinery. After more than two decades of introduction, digestion, absorption and innovation of packaging technology, packaging machinery has reached a modular design, increasing the number of general-purpose components and standardized components of equipment, and highly specialized production, making series development of equipment. It is extremely beneficial to be able to meet the needs of users, shorten the delivery period of equipment, and increase the reliability of equipment operation.

This technology trend provides the basis for the versatility of the equipment and the rapid conversion of CNCs.

CNC rapid conversion of production line

The industry-consistent and universally applicable packaging equipment design platform, after satisfying the most basic practical needs, enjoys the special design of standardized automatic control that enables customers to benefit from the solution that is combined with their special application requirements, and forms a device capable of rapid CNC conversion The design concept, and then achieve the versatility of the device.

A complete packaging line for beverages, dairy products, pharmaceuticals, and daily chemical products should generally include demolition, bottle handling, transportation, bottle washing, filling, sealing, labeling, packing, transfusion, stacking, and other procedures. And the inspection process between the various processes in the production line. However, the packaging containers and products are often converted on a packaging production line, which brings certain difficulties for equipment adjustment and reliable operation of the equipment. The production line with the rapid conversion function can be considered as a tailor-made equipment for the user's packaging needs. It can realize the replacement of packaging materials, the replacement of bottle types, the replacement of trademarks, the replacement of cartons, and the replacement of pallets in a short time.

The ideal numerical control rapid conversion can already realize all kinds of packaging methods, including all the parameters of the packaged product, bottle type, filling volume, and packaging capacity, into the PLC (programmable controller) CPU, in addition to the parts that must be replaced, The rest is achieved by adjustment. The PLC design of the production line has a replacement process for the production line. The adjustment of all the programs is completed in advance and does not require any change in the control line. When the adjustment of the device is completed, a parameter is created according to the size and shape of the new container to be filled on the touch panel displayed on the human-machine dialogue, and one of the required settings is selected, and then confirmation is completed. At the same time all parameters of the PLC have the possibility of modification and addition. The adjustment of this conversion should be a discontinuous adjustment. In addition, the fewer the number of parts that must be changed, the better. Positioning pins, clamps, scales, or digital displays are used to position the changes and do not require adjustment. In order to simplify these adjustments, the exchangeable parts are numbered in a specific container specification and these numbers are stored in the PLC. In order to make the work process simple and error-free, all changes to each bottle type are made in the same color order. When a product line, a bottle type, a trademark, a carton, or a pallet is replaced, the PLC's change program generally indicates the location, quantity, and installation method of the changed part.

In addition to the high one-time investment cost, all other indicators are faster than conventional single high-speed production solutions. It is precisely because of the increase in equipment investment costs that restricts the equipment manufacturers' research and development of rapid conversion of production lines. The main reason is to consider the market's capacity and the user's investment in economy.

Economical equipment with rapid conversion

The development of automatic control theory and the extensive use of computers have laid the foundation for the emergence of new technological solutions.

The CNC multi-functional liquid packaging production line with rapid conversion function has high equipment utilization rate and flexible production. Because it has obvious economic benefits than traditional technologies in solving multi-variety, medium- and small-batch production, as the market competition intensifies, Both developed and developing countries are paying more and more attention to the development of flexible equipment technology.

The versatile design with CNC rapid conversion is easier to achieve on small packaging production lines. Reports have shown that the rapid conversion equipment of foreign packaging machinery to replace bottle types first appeared in the field of cosmetics and pharmaceutical packaging. The rapid market demand for cosmetics packaging has triggered the development of multi-functional packaging machines. There are basically two types of rapid change: First, some parts do not need tools to achieve quick change, such as the star, guide plate or filling valve of the filling machine; second, such as lifting and labeling of filling cylinders. , packing machines and palletizing machines are controlled by the PLC to adjust the servo motors to the desired position.

However, the versatility of large production lines may not be economical at times. Taking the replacement of product variety as an example, the filling valve for filling the air-containing beverage is more complicated than the filling valve for filling the non-gas beverage, and the equipment cost is high. Therefore, if an enterprise mainly produces gas-containing beverages and occasionally produces a little non-gasified beverage, it can purchase a gas-filled beverage filling machine to fill the two products; otherwise, if it is mainly to produce non-gasified beverages, occasionally, Producing a bit of gas-bearing beverage may make it more economical to purchase an air-free beverage filling machine and configure a small gas-filled beverage filling machine at the same time.

Take the replacement of the product bottle as an example. The variation in the dimensions of pharmaceutical or cosmetic bottles is relatively small, and it is easy to achieve relatively rapid economical conversion (if the shape of the bottle varies greatly, additional consideration is required). For example, a liquid filling machine needs to use 300ml and 2000ml two types of bottles, generally small-sized bottle type filling speed, small bottle spacing, high speed equipment; large-size bottle type filling speed is slow, the distance between bottles is large, equipment speed Low, this requires that the speed of the equipment should be designed according to the vial type, and the bottle spacing (usually interpreted as the module of the equipment) of the equipment should be designed according to the large bottle type, but the economics of the equipment will be greatly reduced.

For labeling, packing, and palletizing equipment, the conversion of packaging is mainly achieved through adjustment. The implementation of a new positioning dimension is performed by a servo motor, and its accuracy is unquestionable. However, after the location is realized, the stability and reliability of the positioning are determined by the rigidity of the locator. Therefore, in the case of developing countries or developing enterprises, at present, the labor cost is still relatively low, and mechanical adjustment and mechanical replacement are sometimes favored. Because many replacement parts can take a lot of time to disassemble, install, and adjust, they can reduce investment compared to CNC rapid conversion equipment.

The multi-functional packaging equipment with rapid conversion has become one of the trends in the development of packaging technology. Prior to the massive influx of foreign equipment into the country, domestic equipment manufacturers should speed up research in this area of ​​technology. It should be noted that when developing such products, the production line must also have a display system for monitoring, operation and troubleshooting. Only by making the design of the production line more precise, can the various equipments of the entire production line run in a dynamic balance all the time, ensuring the efficiency and reliability of the equipment.

Source: Export Goods Packaging