The casting industry in China has developed very rapidly in recent years. The total casting output ranks first in the world for 10 consecutive years, and the output accounts for about 1/3 of the world's total casting output. The number of domestic machinery casting machine tools is huge. After entering the industrial adjustment period, it shows the potential of machine tool remanufacturing. China is a veritable casting power. The development of the foundry industry has strongly promoted the advancement of the machinery industry, aerospace industry and national defense industry. In particular, it has promoted the steady progress of China's auto and machine tool products to the international market. Relevant persons pointed out that China's current foundry industry has steadily grown in a steady development trend, which will make a tremendous contribution to the development of China's national economy.
After China's mechanical casting machine tools are eliminated or entered into the retirement period, they can create new value through remanufacturing, create a post-market service, and create a large profit margin. According to industry insiders, the current scale of the automobile aftermarket formed in China is very large, the mechanism is complete, the economic benefits are very obvious, and there are great opportunities. The mechanical foundry industry in China should actively develop in this area to promote the development of the domestic machine tool foundry industry. Advance at a high level.
Non-woven special equipment accessories
Non-woven fabric is a new type of modern material. It has a wide range of uses and can play more roles in clothing, agriculture and industry. The production of non-woven fabrics is also mostly mechanized, which makes it possible to produce a large number of non-woven fabrics in batches. Non-woven fabric winders are one of its equipment.
Non-woven fabric, also called non-woven fabric, is composed of oriented or random fibers. The production of non-woven fabrics often uses polypropylene pellets as raw materials, and is produced by a continuous one-step method of high-temperature melting, spinning, laying, and hot-pressing. In the production of non-woven fabrics, the raw materials need to be spun and formed and then processed. In the web-forming work, a non-woven web forming machine needs to be used. The web forming machine uses wind in the drafting duct to process the silk. After drafting, a machine for non-directional weaving into a net is carried out. However, polypropylene pellets are prone to broken filaments and stiff blocks during drawing, drafting, and web formation. Therefore, in order to improve the quality of the finished non-woven fabric, it is necessary to clean the formed non-woven fabric. When dealing with broken wires and stiff blocks in traditional web forming machines, workers usually use brushes or scouring pads behind the web forming machines to clean up. Because the belt width of the web forming machines is relatively long, and the conveyor belt speed is relatively high at the same time. Fast, the cleaning range that workers can cover is limited, resulting in low cleaning efficiency, which in turn affects the quality of the finished non-woven fabric.
The slitting machine is mainly used to cut large-format non-woven fabrics into multiple small non-woven fabrics of different widths for processing non-woven products. The equipment adopts DC speed regulation, feeding constant tension control, air knife slitting, rewinding pressure and other devices. The rewinding tightness after slitting is adjustable, and the slitting end surface is flat. The equipment is of high quality and beautiful appearance. It is the ideal equipment for the slitting of large non-woven fabrics. In addition, according to the needs of users, the equipment can also add a dummy cutting function, that is, the original fabric is dummy cut and then slit and rewinded.
Non-woven fabric machinery is a general term for the production of non-woven fabric products, and adopts an overall modular design with a compact and reasonable structure. The control part adopts advanced PLC microcomputer control, and the international famous brand frequency converter speed regulation.
Meltblown die head, cross-lapper, slitting machine, winder, non-woven high-speed winding machine, non-woven high-speed web forming machine, Netting machine, polyester non-woven fabric sizing and drying equipment
Changzhou Puyisen Machinery Technology Co., Ltd. , https://www.czsmmsmachine.com