How to make the liquid packaging production line realize the rapid conversion of CNC

The materials of liquid packaging cover all aspects of our life, such as wine, beverage, dairy, vegetable oil, seasoning in food, detergent, bath gel, cosmetics, pharmaceutical preparations, pesticides in daily chemical products, etc Due to different packing materials, different filling methods and filling technologies are used for liquid packaging, such as equal pressure filling, negative pressure filling, normal pressure filling, pressure filling and weighing filling The liquid packaging container can be a glass bottle, a plastic bottle or a metal can, and the sealing method can be a crown cap gland, a screw cap of a threaded bottle mouth or a double crimping and sealing of a can First of all, liquid packaging technology is developing 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 During the equipment acceptance, the sample bottles and bottle caps provided by the customer will also be used for debugging In order to standardize the consistency of containers and caps, and to produce according to the relevant national industry standards, usually a conventional high-speed packaging line is only suitable for one bottle type As for beer bottles, there were only 640ml and 355ml glass bottles in the past; the geometric dimensions of two aluminum cans never changed much All of these provide the basis for high-speed and reliable filling Zui's beer filling machine with large packaging speed of 60000 bottles / hour glass bottles and 120000 cans / hour easy-to-pull cans has been launched, and the production efficiency of the equipment has been greatly improved Many consumer goods rely on the audience's eyes to improve the competitiveness of the market, and the renewal 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 which is suitable for mass production can not fully meet the needs of enterprises Enterprises must find new production technology to adapt to the market changes of products with multiple varieties and small and medium batches The multifunctional design of liquid packaging equipment came into being Applicable to various types of filling machines As early as in liquor and beverage production enterprises, some small enterprises have proposed to use glass bottles with different shapes and dimensions on some low-speed filling machines in order to increase the variety of packaging Therefore, a small filling machine sometimes needs to be equipped with three or four sets of star wheels and guide plates The filling cylinder and sealing device need mechanical lifting mechanism to meet the needs of customers to change the bottle type The mechanical replacement and adjustment of this type of bottle usually take a long time Plastic bottles are widely used in liquid packaging because they are light in weight, can reduce transportation cost, convenient for consumers to carry, reduce damage and save packaging cost Among them, the carbonated beverage, water beverage, tea beverage, fruit and vegetable juice beverage packaged by PET bottle have accounted for more than 80% of the total beverage output 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 Plastic bottles are widely used in the field of liquid packaging, which provides a basis for the convenient conversion of the equipment PET bottles generally have the same size and specification of the bottle mouth, which can realize air delivery, bottle mouth filling and sealing In this way, only the starwheel and guide plate need to be replaced to realize the replacement of bottle type, and it is possible to load and unload quickly The traditional packaging of detergent, shower gel, cosmetics and other daily chemical products is PVC bottle and PE bottle Many daily chemical products are basically homogenous Zui outlets in the market are often on the outer packaging It is the pursuit of the enterprise to display the image of the enterprise and show its unique and exquisite packaging With the economic cost, we can produce different packaging containers, develop our own unique packaging, packaging containers and Products with slight changes are constantly replaced on the filling line Various bottle types can be designed and produced in a short time Due to the different filling materials, the specifications and shapes of the containers are different, and the sealing methods are diversified, which basically belong to the special machinery In particular, small and medium-sized enterprises, product varieties, small batch is its characteristics 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 parts of equipment are increasing, and the highly specialized production is realized, so that the serial development of equipment can be realized, and the products can meet the needs of users and shorten the supply of equipment The delivery time and the reliability of equipment operation are extremely favorable This technology trend provides the basis for the multi-function of the equipment and the fast conversion of numerical control The product line's NC fast conversion industry consistent and universally applicable packaging equipment design platform, after meeting the basic practical needs of Zui, the special design enjoys standardized automatic control, which enables customers to benefit from the solution combined with its special application requirements, forming a design concept that the equipment can carry out NC fast conversion, and then realize the multi-functional of the equipment A complete packaging line for beverages, dairy products, pharmaceutical products and daily chemical products shall generally include several processes such as unstacking, bottle handling, conveying, bottle washing, filling, sealing, labeling, packing, case conveying, palletizing, as well as the detection of each process in the production line Packaging containers and products are often replaced in a packaging production line, which brings some difficulties for equipment adjustment and reliable operation The production line with the function of fast numerical control and fast conversion can be considered as the customized equipment for the user's packaging demand It is a general equipment for packaging production of this kind of special equipment in an enterprise It can realize the replacement of packaging materials, bottles, trademarks, cartons and pallets The ideal NC fast conversion has been able to realize several packaging methods All parameters related to packaging products, bottle type, filling amount and packaging capacity are input into the CPU of PLC (programmable controller) Except the parts that must be replaced, the rest are realized by adjustment The PLC of the production line is designed with the replacement procedure of the production line, and the adjustment of all the procedures is completed by the preset without any change of the 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 of the human-computer dialogue display, select some required settings, and confirm At the same time, all parameters of PLC have the possibility of modification and addition The adjustment of this conversion should be discontinuous The smaller the number of parts to be changed, the better The parts to be changed will be positioned and installed with locating pin, fixture, scale or digital display without adjustment In order to simplify these adjustments, these interchangeable parts are numbered uniformly according to the specifications of specific containers, and these numbers will be stored in 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 in the production line, the change procedure of PLC can generally prompt the position, quantity and installation method of the changed parts to be replaced In addition to its high one-time investment cost, other indicators are better than the conventional single high-speed production scheme It is also due to the increase of equipment investment cost that restricts the equipment manufacturers' research and development of fast conversion production line The main reason is to consider the market capacity and the economy of user investment The development of the economic automatic control theory of multi-functional equipment and the extensive use of computers lay the foundation for the emergence of new technical solutions CNC multi-functional liquid packaging production line with fast conversion function has high equipment utilization rate, flexible production, and can adapt to production changes When the market demand or design changes, there is no need to change the hardware structure of the system The equipment has the flexibility to produce different products Because it has obvious economic benefits than traditional technology in solving multi variety, small and medium-sized batch production, with the aggravation of international competition, both developed and developing countries pay more and more attention to the development of flexible technology Multi functional design with fast conversion of numerical control is easier to be realized in small packaging production line It has been reported that the rapid conversion equipment Zui for bottle type replacement of foreign packaging machinery has long appeared in the field of cosmetics and drug packaging As mentioned before, the renewal of cosmetic bottle packaging is relatively fast, and this market demand triggers the development of multi-functional packaging machine Fast conversion is basically two ways, some parts do not need to use tools to realize fast replacement, such as the star wheel and guide plate of the filling machine; the other way is the lifting of the filling cylinder, and the adjustment of the labeling machine, the packing machine and the palletizing 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 fast conversion, that is, whether the product is single high-speed or multi-functional depends on the needs of users and its economy The versatility of large production lines may not be economical at times Take product variety change as an example The filling valve of the filling machine is more complex than that of the filling machine, and the equipment cost is higher An enterprise mainly produces gas drinks and occasionally produces a little non gas drinks It can purchase a gas beverage filling machine to fill two kinds of products On the contrary, if it mainly produces non gas drinks and occasionally produces a little gas drinks, if it configures the production line according to the gas beverage filling machine, it may purchase a small-scale non gas beverage filling machine at the same time In comparison, the latter may be more economical Take the product bottle type change as an example The shape and size of drug or cosmetic bottle are relatively small, so it is easy to realize the economical fast i-plug conversion If the overall dimension of the bottle type changes greatly, it needs to be considered otherwise For example, a liquid filling machine needs to use two types of bottles with a diameter of 50mm and a diameter of 150 mm Generally, the filling speed of small size bottles is fast, the spacing between bottles is small, and the rotating speed of the equipment is high; the filling speed of large size bottles is slow, the spacing between bottles 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 size bottles, and the spacing between bottles of the equipment (usually interpreted as the module of the equipment) should be designed according to the large size bottles, and the equipment I'm afraid that our economy will be greatly reduced The high production capacity bottle handling equipment can't tolerate the design of big change of bottle shape For labeling, packing and palletizing equipment, the conversion of packaging mainly depends on adjustment, and the realization of a new positioning dimension is executed by servo motor, whose accuracy is beyond doubt However, the stability and reliability of positioning after position realization depends on the rigidity of positioner, which is also an aspect of increasing investment for large equipment So 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 a lot of time, but compared with CNC fast conversion equipment, investment can be reduced However, the multi-functional packaging equipment with the function of quick replacement has become the development direction of product design and a trend Before a large number of foreign equipment influx, domestic equipment manufacturers should start this research When enterprises develop such products, the production line should have the display system of monitoring, operation and fault diagnosis, and design the operation of the production line, so that the operation of all kinds of equipment in the whole production line is always in a dynamic balance, to ensure the efficiency and reliability of the equipment Source: Jiagong electromechanical network