The high speed development of the sub bar machine should be based on the premise of ensuring the quality of the cutting. Equipment needs are more than just a single function of demand. In the face of the new development, the traditional sub machines seem to be inadequate, which is mainly reflected in the original equipment, backward control and so on. In addition to the improvement of the design and production of domestic made in addition to the shortcomings, but also in its standardization, universal, comprehensive, diversified and other aspects of more attention.
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In the production process of soft packaging, cutting process is almost indispensable in the process of finishing. Machining quality is one of the main problems for many users in many years. However, for many years in the Chinese soft packaging equipment supply market in the past there are always good and bad mixed levels of dragons and fishes jumbled together, equipment. On the other hand, for the majority of equipment procurement, the choice of a sub machine in addition to a certain brand of psychological orientation, more is to choose a procurement costs for their own equipment. This option gives the opportunity to the development of certain equipment manufacturing enterprises, but also to some equipment manufacturers to create opportunities for cheating. Of course, the supply and demand of the market has always been the driving force to change the direction of the development of the industry, we are not willing to see the sub machine market is full of the most original section of the device.
With the prosperity and development of flexible packaging market, the constant introduction of new materials, new standard, new technology, new equipment, packaging of goods entered the field of higher level, soft packaging enterprise management development also entered the update mode, equipment demand will not just for the single function of demand. Designing and manufacturing more perfect and more humanized intelligent equipment is an important measure of the progress of the industry, which is the inevitable development of the industry. In the face of the new development, the traditional sub machine seems to be the performance of the powerless, which is mainly in the following aspects:
1, the original structure of the equipment.
Most of the traditional sub - use of the passive single - position, this roll structure to many years ago, the Japanese imports of equipment for the model design and manufacture. Its disadvantages believe most operator experience the bitter and the drawing of the tunica albuginea, printing film, composite film deformation, tension control instability, complicated operation, high strength work, slitting quality too inferior many obvious problems. Reeling adopts magnetic powder clutch transfer torque, gas expansion type differential slip shaft material receiving and biaxial single station receiving (or single shaft single station receiving), winding tension open loop control, simple structure parts using life short, winding quality difference, feed shaft serious fever. This kind of structure in the domestic machine is most common, due to a releasing reel and take-up reel with the friction brake and friction clutch to control the tension of the film material by the highest slip speed limit, it is not running at high speed, and its working stability is poor.
2, supporting systems and equipment control.
Domestic equipment manufacturers to lower costs of strategic awareness is relatively strong, the low-end market vicious competition has been extended. Low cost strategy drives them to use a large number of unreliable components in the manufacturing process of the sub - machine, and adopts the backward control mode. In the tension test, the low quality piezoelectric sensor is widely used, and its control mode can only be put on the roll brake. Although this control mode is available, but the host speed synchronous long time lag. In winder, domestic equipment more than with magnetic particle clutch and gas up differential slip shaft with the use of, magnetic powder clutch to control the majority of the manual open-loop control, collect material slope tension output for magnetic particle clutch and gas up slip shaft output, winding tension feedback, tension control precision, material roll edge uneven, resulting in equipment technology level of the operator to rely too much, this effect in the process of lifting speed performance of Jew is obvious. Tape correction system is the machine must be equipped, it in the control put material swept away the axial position accuracy have a very important role, influence the cutting quality. However, many manufacturers have a poor performance of the system is equipped with a poor performance, resulting in a roll lateral instability, deviation correction signal (edge -Edge, line -Line) detected instability. The reel is a very important part of the sub machine, the low quality of the material receiving shaft not only can not adapt to the high-speed work, and the life of the friction block directly affect the normal operation of the machine. The domestic production of pneumatic slip shaft due to the material processing technology and good quality, very rare. Supporting system quality is poor and equipment control is backward, it is difficult to adapt to high-speed cutting.
3, power consumption and noise is too large.
As a small device, the power consumption is relatively small in the main function of the machine. Due to the lack of technical knowledge, the domestic made in the process of making a machine is more than enough to meet the functional requirements. For example, in the process of cutting the material side of the blowing and suction side, the relative power consumption is relatively small, but the design is not reasonable when the blowing edge can not complete the corresponding function. In some devices, due to the structure or operation, the suction feeding programs more appropriate. However, when the design is not reasonable cannot be sucked out of the side. At this point for manufacturers to increase the power of the wind power is the usual way. That is to increase the user's cost of use, this approach is very unfair to the user. Noise is one of the more prominent problems of equipment, manufacturers increase the power of the noise at the same time will increase the equipment.
4, equipment operability and safety issues.
All the sub machines are made basically.
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