I. Overview
1. Cutting process and its characteristics
The slitting process is a process for processing a material that does not meet the requirements of use and is processed into a qualified material by a special cutting device. In the flexible packaging industry, this special device is called a slitting machine.
Many packaging materials are often subjected to slitting-printing (or coating) several times before they are used to package the goods. However, the cutting methods used in each slitting process are not the same. The methods of cutting include: (1) Trimming, cutting off the process edge material reserved for the upstream process, and mostly used for the processing of composite film and other materials; (2) Cutting, cutting the wide web into multiple rolls and narrow specifications Size material; (3) Sub-volume, the large diameter material is divided into several volumes of small diameter material, equivalent to rewind; and so on. These methods are sometimes used in combination. Regardless of the kind of process used, the following materials should meet the corresponding technical specifications: (1) size requirements (refer to the width and length of the slitting material, etc.); (2) quality requirements ( Roll flatness, surface quality, etc.).
Manufacture and purchase of qualified cutting equipment not only meet these technical specifications, but also must consider the following two factors: (1) Operational efficiency, which mainly includes the working speed, stability, and ease of operation of the machine; (2) Economic performance refers to the scope of application of equipment to materials, the limit of processing dimensions, and the price and energy consumption of equipment.
2. The importance of the slitter in packaging materials
China's flexible packaging industry started in the early 1980s (here mainly refers to plastic packaging; paper packaging began earlier, but the development is relatively slow), when limited by technology and market, the material used for packaging is limited to a few easily processed materials (such as PE, PVC film, etc.), because at that time packaging requirements are not high, the scope of application is not extensive, and the requirements for processing equipment are not obvious.
After entering the 1990s, with the improvement of packaging quality, the performance requirements of packaging materials for packaging materials have become increasingly prominent (to come with materials barrier, light, etc.), there have been many materials with special properties (such as with shading And the surface quality requirements of the aluminum plating material, the greater the elongation of the CPP film, etc.). Since the characteristics of these materials cannot be destroyed during processing, this imposes very stringent requirements on the performance of the important process-slitting machine in the equipment, especially in the soft plastic packaging.
On the other hand, with the gradual promotion of automated packaging equipment in the packaging industry, such as food packaging, cigarette packaging, etc., these automatic packaging machines are very critical of the quality of the cut material, which gives the cutting machine a high degree of Grade, high-precision control brings a broad space for development.
Second, the use of domestic Slitter
Due to the wide application of packaging materials and the increasing growth of characteristic materials, there are currently nearly 100 enterprises that have a certain scale of production and processing of packaging materials.
Prior to 1995, due to the constraints of domestic equipment manufacturing and other factors, the packaging material processing companies' equipment was all foreign manufacturers' products. The medium and high-grade slitting machines they used were monopolized by a few foreign manufacturers. High-end German CommScope, UK Atlas, etc. (The winding tension of this type of equipment is automatically controlled by taper method with a speed of 300m/min or more), and mid-range products are Japanese and Taiwanese products (speed is about 200m/min. ) Imported equipment is not only expensive, but also very inconvenient in maintenance services. Some of the equipment introduced in the early stages have entered a period of frequent maintenance, and some special materials are difficult to cut on imported equipment.
Domestic slicing machines started late. In 1986, Wuxi Beiren Xiemin Printing Machinery Factory took advantage of the strength of scientific research institutions to refer to the more advanced equipment of Japan and other countries to overcome the conditions of Beijing Binding and successfully developed the first. Taiwan-made optical control cutting machine GFQ1100 type, this equipment is quickly used by the packaging industry, welcomed by users, and started the domestic manufacturing Slitter voyage.
After 90 years, it entered the information age. The manufacturing industry is also facing new technologies such as digitalization and industrial automation. Precise foreign accessories and advanced control technologies have created tremendous impetus for the processing and manufacturing of the slitting machines. Wuxi City Beiren Xiemin Printing Co., Ltd. Based on the development trend and process characteristics of packaging materials, the machinery factory absorbs international advanced technology and relies on the strong technical support of Beiren Group. With the goal of the world's most advanced Commerfassing machine, it is well-designed and precision-manufactured in 1997. The automatic high-speed cutting machine-GFQ1300 with independent intellectual property rights (Patent No.: ZL992 28014.1) was produced, thus ending the history of high-grade cutting machines imported from China. Over the past few years, dozens of companies engaged in material production, aluminizing, cigarette packaging, etc., in Zhongshan, Anhui, Hefei, Anhui Province, and Huaiyin, Jiangsu Province have agreed that the equipment is among the best in the world.
A company in Shanghai is a Japanese-owned company. It knows more about international slitting machines. The company already has several foreign slitting machines. When it expanded production at the beginning of the year, it initially had doubts about domestically-made slitting machines. After conducting numerous tests on the products of the Beiren Xiemin Printing Factory, and conducting numerous exchange demonstrations with the experts of the Beiren Ximin, they finally gave them the order to manufacture the cutting machine with confidence. The products manufactured by the factory are highly rated.
Third, the domestic high-end cutting machine performance characteristics
The GFQ series automatic high-speed slitting machine manufactured by Wuxi Beiren Xiemin Printing Machinery Factory is an integrated machine, electricity, light, and gas with a high speed of 200-500m/min, and a complete range of specifications (600-200mm). Wide (film, paper, aluminized materials, etc.), high precision (digital automatic control) and other notable features.
1. The machine's electrical system is controlled centrally by a full-computer PLC. It is equipped with a human-machine interface system (man-machine dialogue, setting of cutting parameters according to the cutting process requirements, and display and monitoring of working status, etc.). PLC uses performance. Superior Mitsubishi programmable controllers, combined with AD and DA for operation status control, automatically control the suction tension according to the taper method according to the detection results of the high-performance pulse generator and the change of the set parameters and the diameter of the coil; The main traction and rewinding adopts two Yaskawa frequency inverters with vector control function to directly control the torque. The rewinding parts adopt the imported gas expansion shaft and clutch, combined with the adjustable pressure and pressure shaft structure, and truly realize the digital automatic of the high-end slitting machine. control.
2. The unwinding section consists of Japan Mitsubishi's automatic tension control system, Sanqiao's automatic photoelectric correction system, and hydraulic lifting mechanism. The loading structure is a shaftless clamping method, combined with a hydraulic lifting mechanism, which facilitates loading and unloading, saves time and labor, and reduces labor intensity.
3, cutting knife with a flat edge and two kinds of circular edge of the main electrical, pneumatic, standard parts are imported brand-name products, stable and reliable performance.
4. The price of this machine is only 1/3-1/5 of the imported equipment with the same file and level, and the performance price is relatively high.
The technical performance of the automatic high-speed slitting machine manufactured by Wuxi Beiren Xiemin Printing Machinery Factory has been in the leading position in China, and has reached and surpassed the advanced level of similar international products in certain aspects. The factory has established an international brand name as Goals, continuous technological innovation, has formed the research and development, production and manufacturing capabilities of cutting equipment. Based on the achievements, new products are continuously introduced. The working speed is increased from 300m/min to 500m/min. The machine size has been extended from 1300mm basic size to small format computer paper from 600mm to 2200mm wide material slitting. . Some domestic large-scale packaging material manufacturers have invited them to carry out maintenance and reconstruction for the early imported equipment, and they have designed and manufactured a series of special equipment with special performance specifications (such as film slitting, etc.), which not only brings about great results to the company itself. The economic benefits have contributed to the development of the packaging industry in China.
Fourth, the development trend of slitting machine
In the industry, there is a metaphor for this image. The early slitting machine has a simple structure with a speed of about 100m/min. The mechanical friction of the winding tension is manually controlled. People call it a “telephoneâ€; Volume-type clutch and other 10,000-type control, single motor control traction and winding, the speed of 200m/min or less, known as the "simulator"; Beiren Association Printing Factory automatic high-speed slitting machine, the use of digital automatic control The speed is above 300m/min, just like the "digital machine" in the modern communication field.
After entering the new century, digital informatization has spread across various industries. With China's accession to the WTO, the Slitter will also be moving in the direction of higher speeds and higher precision. Wuxi Beiren Xiemin Printing Machinery Factory takes "quality First, to strive for excellence, the company is stepping up its research on the control technology, the speed and accuracy of signal processing, and the improvement of the traditional cutting edge cutting methods faced by more advanced cutting machines, and welcomes industry insiders. They communicate, guide, and cooperate to work hard for the brilliant future of the packaging industry!
1. Cutting process and its characteristics
The slitting process is a process for processing a material that does not meet the requirements of use and is processed into a qualified material by a special cutting device. In the flexible packaging industry, this special device is called a slitting machine.
Many packaging materials are often subjected to slitting-printing (or coating) several times before they are used to package the goods. However, the cutting methods used in each slitting process are not the same. The methods of cutting include: (1) Trimming, cutting off the process edge material reserved for the upstream process, and mostly used for the processing of composite film and other materials; (2) Cutting, cutting the wide web into multiple rolls and narrow specifications Size material; (3) Sub-volume, the large diameter material is divided into several volumes of small diameter material, equivalent to rewind; and so on. These methods are sometimes used in combination. Regardless of the kind of process used, the following materials should meet the corresponding technical specifications: (1) size requirements (refer to the width and length of the slitting material, etc.); (2) quality requirements ( Roll flatness, surface quality, etc.).
Manufacture and purchase of qualified cutting equipment not only meet these technical specifications, but also must consider the following two factors: (1) Operational efficiency, which mainly includes the working speed, stability, and ease of operation of the machine; (2) Economic performance refers to the scope of application of equipment to materials, the limit of processing dimensions, and the price and energy consumption of equipment.
2. The importance of the slitter in packaging materials
China's flexible packaging industry started in the early 1980s (here mainly refers to plastic packaging; paper packaging began earlier, but the development is relatively slow), when limited by technology and market, the material used for packaging is limited to a few easily processed materials (such as PE, PVC film, etc.), because at that time packaging requirements are not high, the scope of application is not extensive, and the requirements for processing equipment are not obvious.
After entering the 1990s, with the improvement of packaging quality, the performance requirements of packaging materials for packaging materials have become increasingly prominent (to come with materials barrier, light, etc.), there have been many materials with special properties (such as with shading And the surface quality requirements of the aluminum plating material, the greater the elongation of the CPP film, etc.). Since the characteristics of these materials cannot be destroyed during processing, this imposes very stringent requirements on the performance of the important process-slitting machine in the equipment, especially in the soft plastic packaging.
On the other hand, with the gradual promotion of automated packaging equipment in the packaging industry, such as food packaging, cigarette packaging, etc., these automatic packaging machines are very critical of the quality of the cut material, which gives the cutting machine a high degree of Grade, high-precision control brings a broad space for development.
Second, the use of domestic Slitter
Due to the wide application of packaging materials and the increasing growth of characteristic materials, there are currently nearly 100 enterprises that have a certain scale of production and processing of packaging materials.
Prior to 1995, due to the constraints of domestic equipment manufacturing and other factors, the packaging material processing companies' equipment was all foreign manufacturers' products. The medium and high-grade slitting machines they used were monopolized by a few foreign manufacturers. High-end German CommScope, UK Atlas, etc. (The winding tension of this type of equipment is automatically controlled by taper method with a speed of 300m/min or more), and mid-range products are Japanese and Taiwanese products (speed is about 200m/min. ) Imported equipment is not only expensive, but also very inconvenient in maintenance services. Some of the equipment introduced in the early stages have entered a period of frequent maintenance, and some special materials are difficult to cut on imported equipment.
Domestic slicing machines started late. In 1986, Wuxi Beiren Xiemin Printing Machinery Factory took advantage of the strength of scientific research institutions to refer to the more advanced equipment of Japan and other countries to overcome the conditions of Beijing Binding and successfully developed the first. Taiwan-made optical control cutting machine GFQ1100 type, this equipment is quickly used by the packaging industry, welcomed by users, and started the domestic manufacturing Slitter voyage.
After 90 years, it entered the information age. The manufacturing industry is also facing new technologies such as digitalization and industrial automation. Precise foreign accessories and advanced control technologies have created tremendous impetus for the processing and manufacturing of the slitting machines. Wuxi City Beiren Xiemin Printing Co., Ltd. Based on the development trend and process characteristics of packaging materials, the machinery factory absorbs international advanced technology and relies on the strong technical support of Beiren Group. With the goal of the world's most advanced Commerfassing machine, it is well-designed and precision-manufactured in 1997. The automatic high-speed cutting machine-GFQ1300 with independent intellectual property rights (Patent No.: ZL992 28014.1) was produced, thus ending the history of high-grade cutting machines imported from China. Over the past few years, dozens of companies engaged in material production, aluminizing, cigarette packaging, etc., in Zhongshan, Anhui, Hefei, Anhui Province, and Huaiyin, Jiangsu Province have agreed that the equipment is among the best in the world.
A company in Shanghai is a Japanese-owned company. It knows more about international slitting machines. The company already has several foreign slitting machines. When it expanded production at the beginning of the year, it initially had doubts about domestically-made slitting machines. After conducting numerous tests on the products of the Beiren Xiemin Printing Factory, and conducting numerous exchange demonstrations with the experts of the Beiren Ximin, they finally gave them the order to manufacture the cutting machine with confidence. The products manufactured by the factory are highly rated.
Third, the domestic high-end cutting machine performance characteristics
The GFQ series automatic high-speed slitting machine manufactured by Wuxi Beiren Xiemin Printing Machinery Factory is an integrated machine, electricity, light, and gas with a high speed of 200-500m/min, and a complete range of specifications (600-200mm). Wide (film, paper, aluminized materials, etc.), high precision (digital automatic control) and other notable features.
1. The machine's electrical system is controlled centrally by a full-computer PLC. It is equipped with a human-machine interface system (man-machine dialogue, setting of cutting parameters according to the cutting process requirements, and display and monitoring of working status, etc.). PLC uses performance. Superior Mitsubishi programmable controllers, combined with AD and DA for operation status control, automatically control the suction tension according to the taper method according to the detection results of the high-performance pulse generator and the change of the set parameters and the diameter of the coil; The main traction and rewinding adopts two Yaskawa frequency inverters with vector control function to directly control the torque. The rewinding parts adopt the imported gas expansion shaft and clutch, combined with the adjustable pressure and pressure shaft structure, and truly realize the digital automatic of the high-end slitting machine. control.
2. The unwinding section consists of Japan Mitsubishi's automatic tension control system, Sanqiao's automatic photoelectric correction system, and hydraulic lifting mechanism. The loading structure is a shaftless clamping method, combined with a hydraulic lifting mechanism, which facilitates loading and unloading, saves time and labor, and reduces labor intensity.
3, cutting knife with a flat edge and two kinds of circular edge of the main electrical, pneumatic, standard parts are imported brand-name products, stable and reliable performance.
4. The price of this machine is only 1/3-1/5 of the imported equipment with the same file and level, and the performance price is relatively high.
The technical performance of the automatic high-speed slitting machine manufactured by Wuxi Beiren Xiemin Printing Machinery Factory has been in the leading position in China, and has reached and surpassed the advanced level of similar international products in certain aspects. The factory has established an international brand name as Goals, continuous technological innovation, has formed the research and development, production and manufacturing capabilities of cutting equipment. Based on the achievements, new products are continuously introduced. The working speed is increased from 300m/min to 500m/min. The machine size has been extended from 1300mm basic size to small format computer paper from 600mm to 2200mm wide material slitting. . Some domestic large-scale packaging material manufacturers have invited them to carry out maintenance and reconstruction for the early imported equipment, and they have designed and manufactured a series of special equipment with special performance specifications (such as film slitting, etc.), which not only brings about great results to the company itself. The economic benefits have contributed to the development of the packaging industry in China.
Fourth, the development trend of slitting machine
In the industry, there is a metaphor for this image. The early slitting machine has a simple structure with a speed of about 100m/min. The mechanical friction of the winding tension is manually controlled. People call it a “telephoneâ€; Volume-type clutch and other 10,000-type control, single motor control traction and winding, the speed of 200m/min or less, known as the "simulator"; Beiren Association Printing Factory automatic high-speed slitting machine, the use of digital automatic control The speed is above 300m/min, just like the "digital machine" in the modern communication field.
After entering the new century, digital informatization has spread across various industries. With China's accession to the WTO, the Slitter will also be moving in the direction of higher speeds and higher precision. Wuxi Beiren Xiemin Printing Machinery Factory takes "quality First, to strive for excellence, the company is stepping up its research on the control technology, the speed and accuracy of signal processing, and the improvement of the traditional cutting edge cutting methods faced by more advanced cutting machines, and welcomes industry insiders. They communicate, guide, and cooperate to work hard for the brilliant future of the packaging industry!
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