How to make the liquid packaging production line r

2022-08-18
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How to make the liquid packaging production line realize rapid numerical control conversion

the materials of liquid packaging cover all aspects of our life, such as alcohol, beverages, dairy products, vegetable oil, condiments in food, detergent, shower gel, cosmetics, pharmaceutical agents, pesticides in daily chemical products, etc. Liquid packaging adopts different filling methods and filling technologies due to different packaged materials, such as isobaric filling, negative pressure filling, atmospheric pressure filling, pressure filling and weighing filling. Liquid packaging containers can be glass bottles, plastic bottles, metal cans, and the sealing method can be the gland of the crown cap, the screw cap of the threaded bottle mouth, or the double crimping and sealing of the can

liquid packaging technology is first developed to single high-speed type. When the equipment manufacturer accepts the user's order, it usually requires the customer to provide filling materials, packaging containers and bottle caps. The sample bottles and bottle caps provided by the customer will also be used for debugging during equipment acceptance. In order to standardize the consistency of containers and bottle caps, they are also produced according to relevant national and industrial standards. Usually, a conventional high-speed packaging line is only suitable for one bottle type. For example, beer bottles had only 640ml and 355ml glass bottles in the past; The geometric dimensions of the two pieces of aluminum cans have never changed much. These provide the basis for high-speed and reliable filling. The beer filling machine with the maximum packaging speed of 60000 bottles/hour and 120000 cans/hour cans has been launched, and the production efficiency of the equipment has been greatly improved

many consumer goods rely on the attention of the audience to improve the competitiveness of the market. The update speed of content is far lower than the continuous change of packaging containers, which is particularly prominent in the beverage industry and daily chemical industry. The traditional high-speed production line suitable for mass production can no longer fully meet the needs of enterprises. Enterprises must find new production technology to adapt to the market changes of multi variety and small and medium batch products. The multifunctional design of liquid packaging equipment came into being

filling machines suitable for a variety of bottle types

relatively early in Baijiu and beverage production enterprises, some small enterprises have proposed to use glass bottles with different shapes and external dimensions on some low-speed filling machines in order to increase the variety of packaging, so a small filling machine sometimes needs to be equipped with three or four sets of star wheels and guide plates, and the filling cylinder and sealing device need a mechanical lifting mechanism to meet the needs of customers to change bottle types. The mechanical replacement and adjustment of this type of bottle generally takes a long time

plastic bottles are light in weight, which can reduce transportation costs, facilitate consumers to carry, reduce damage, and save packaging costs. They are widely used in liquid packaging. Among them, carbonated drinks, water drinks, tea drinks and fruit and vegetable juice drinks packaged in PET bottles have accounted for more than 80% of the total output of beverages. PET provides a broad design space for bottle designers, which can strongly attract many consumers and form the mainstream of market consumption. These advantages make pet bottle packaging gradually replace glass bottle packaging

the wide use of plastic bottles in the field of liquid packaging provides a basis for the convenient conversion of bottle types. PET bottles generally have the same size of the bottle mouth, which can realize air transportation, bottle mouth filling and sealing. In this way, the bottle type can be replaced only by replacing the star wheel and guide plate, and rapid loading and unloading is also possible

the traditional packaging of detergent, shower gel, cosmetics and other daily chemical products is PVC bottles and PE bottles. Many daily chemical products are basically homogeneous, and the biggest selling point of their market is often on the outer packaging. It is the pursuit of enterprises to show their corporate image and unique exquisite packaging. They produce distinctive packaging containers at an economic cost and develop their own unique packaging, Packaging containers and subtle changes in the production, filling and distribution of volatile raw materials industry play an important supporting role in the industrial transformation and upgrading of our province. Products are constantly replaced on the filling line. Bottle types with a wide range of specifications can be designed and produced in a short time

liquid packaging is basically a special machine due to different filling materials, different specifications and shapes of containers, and diversified sealing methods. In particular, small and medium-sized enterprises are characterized by a large variety of products and small batches. After more than 20 years of introduction, digestion, absorption and innovation of packaging technology, the packaging machinery has reached modular design. By increasing the proportion of general and standardized design, the general and standardized components of equipment are increasing, and a high degree of professional production, so that the serialized development of equipment can be realized, and the products can meet the needs of users, shorten the supply period of equipment It is extremely beneficial to improve the reliability of equipment operation. This technology trend provides the basis for the versatility of equipment and Rapid NC conversion

Rapid NC conversion of production line

the industry consistent and universally applicable packaging equipment design platform, after meeting the most basic practical needs, special design enjoys standardized automatic control, which can enable customers to benefit from the solution combined with their special application requirements, forming the design concept that the equipment can carry out rapid NC conversion, so as to realize the versatility of the equipment

a complete packaging line for beverages, dairy products, pharmaceuticals, daily chemical products should generally include several processes such as destacking, bottle sorting, transportation, bottle washing, filling, sealing, labeling, packing, box transportation, stacking, as well as the detection between various processes in the production line. Packaging containers and products are often replaced in one packaging production line, which brings certain difficulties to equipment adjustment and reliable operation

the production line with the function of fast numerical control and fast conversion can be regarded as the equipment tailored to the packaging needs of users. It is a general equipment for this special equipment to carry out packaging production in an enterprise. It can realize the replacement of packaging materials, bottle types, trademarks, cartons and pallets

the ideal NC fast conversion has been able to input all parameters of several packaging methods, including packaging products, bottle type, filling volume and packaging capacity, into the CPU of PLC (programmable controller). Except for the parts that must be replaced, the rest are realized by adjustment. The PLC of the production line is designed with the replacement program of the production line, and the adjustment of all programs is completed by preset without any change of control circuit. Complete the adjustment of the equipment, create parameters according to the size and shape of the new container to be filled on the touch screen displayed by the man-machine dialogue, select the required setting, and confirm. At the same time, all parameters of PLC have the possibility of modification and addition. The adjustment of this transformation should be discontinuous

the less the number of parts that must be changed, the better. The changed parts will be installed by positioning pins, clamps, scales or digital displays without adjustment. In order to simplify these adjustments, these interchangeable parts are uniformly numbered according to the specifications of specific containers, and these numbers will be stored in the PLC

in order to make the working procedure simple and correct, all the changed parts of each bottle type are arranged in the same color sequence. When the product, bottle type, trademark, carton and pallet are replaced on the production line, the PLC change program can generally prompt the position, quantity and installation method of the changed parts to be replaced

except for the high one-time investment cost, other indicators are better than the conventional single high-speed production scheme. It is precisely because of the increased cost of equipment investment that restricts the research and development of rapid conversion production lines by equipment manufacturers. The main reason is to consider the capacity of the market and the economy of user investment

The development of automatic control theory and the wide use of computers have laid the foundation for the emergence of new technical solutions. The CNC multifunctional liquid packaging production line with fast conversion function has high equipment utilization rate and flexible production, which can adapt to production changes. When the market demand or design changes, there is no need to change the hardware structure of the system, and the equipment has the flexibility to produce different products. Because it has obvious economic benefits over traditional technology in solving multi variety, small and medium-sized batch production, with the intensification of international competition, both developed and developing countries pay more and more attention to the development of flexible technology

the multifunctional design with rapid numerical control conversion is easier to realize on the small packaging production line. It is reported that the rapid conversion equipment for changing the bottle type of foreign packaging machinery first appeared in the field of cosmetics and drug packaging. As mentioned above, cosmetic bottle packaging is updated faster, and this market demand triggered the development of multi-functional packaging machines. There are basically two ways of fast conversion. Some parts can be changed quickly without tools, such as the star wheel and guide plate of the filling machine; The other is the lifting and lowering of the filling cylinder, and the adjustment of the labeling machine, the packing machine and the stacking machine. PLC controls the operation of several servo motors to adjust to the required position

whether a liquid packaging production line should have the function of rapid conversion, that is, whether the product is a single high-speed type or a multi-functional type, depends on the needs of users and its economy. The versatility of large production lines may sometimes not be economical. Take the product variety change as an example. The filling valve of filling aerated beverage filling machine is more complex than that of filling non aerated beverage filling machine, and the equipment cost is high. An enterprise mainly produces aerated beverages, and occasionally produces a little non aerated beverages. It can purchase an aerated beverage filling machine to fill two products; On the contrary, if we mainly produce non aerated beverages and occasionally produce a little aerated beverages, if we configure the production line according to the aerated beverage filling machine, we may purchase a non aerated beverage filling machine and configure a small aerated beverage filling machine at the same time as the general inspection of the tension machine, which may be more economical compared with the latter

take the replacement of product bottle type as an example. The change of the shape and size of the drug or cosmetic bottle is relatively small, and it is easy to realize the economical fast i-plug conversion. If the overall dimension of the bottle changes greatly, it needs to be considered otherwise. For example, a liquid filling machine should use two types of bottles with a diameter of 50mm and a diameter of 150mm. Generally, small-sized bottles have fast filling speed, small bottle spacing and high equipment speed; The filling speed of large-size bottles is slow, the bottle spacing is large, and the rotating speed of the equipment is low, because the rotating speed of the equipment should be designed according to the small bottle type, and the bottle spacing of the equipment (usually interpreted as the modulus of the equipment) should be designed according to the large bottle type, so the economy of the equipment is afraid to be greatly reduced. Bottle sorting equipment with high production capacity can not tolerate the design with large changes in bottle shape

for labeling, packing and stacking equipment, the conversion of packaging is mainly realized by adjustment, and the realization of a new positioning dimension is implemented by the servo motor, and its accuracy is beyond doubt. However, the stability and reliability of positioning after the position is realized depend on the rigidity of the positioner, which is also an aspect of increasing investment for large equipment. Therefore, for developing countries or developing enterprises, when the current labor cost is still relatively low, sometimes they prefer to use mechanical adjustment and mechanical replacement. The disassembly, installation and adjustment of many replacement parts will take more time, but compared with CNC fast conversion equipment, it can reduce investment

however, multifunctional packaging equipment with rapid assembly and replacement function has become the development direction of product design. New indicators of environmental protection and energy conservation have raised the threshold of the paper industry, which is a trend. A large number of foreign equipment poured into the country

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