Paper cutter is an indispensable cutting equipment in printing, packaging and paper products industry. With the continuous progress and development of society, people's requirements for printing and packaging are getting higher and higher, which puts forward higher requirements for the cutting accuracy and speed of the paper cutter. Through more than 20 years of research and experiments, Litong Company has broken through the traditional design thinking and production process, carefully designed according to the European paper cutter standard, using CNC numerical control machine tools for precision processing, and selecting components from international and domestic famous brands for matching and design. After manufacturing a high-precision, high-speed, high-quality new dual-rail paper cutter that integrates light, machine, electricity, liquid and gas, in 2005, the paper cutter manufacturing technology and level were pushed to a higher level. At the same time, the ---- Litong brand double-rail paper cutter with integral frame was launched.
Litong's new generation of integrated rack dual-rail paper cutter has won many national patents, and has been recognized as a major innovative technology in the paper cutter manufacturing industry by international and domestic printing and packaging machinery industry experts. The Litong double-rail cutter has been tested by users for more than ten years. Practice has proved that the Litong double-rail cutter is of high quality and can still guarantee its high quality with high precision and high speed after many years of use. The "Litong" brand was rated as one of the top ten brands in China's printing industry in 2005 and the first customer satisfaction brand for printing machinery and equipment in China in 2006. The new generation of Litong brand integral frame double-rail paper cutter will be the best choice for cutting equipment in printing, packaging and paper products industry.
1. Common technology and configuration of main models:
(1). Mechanical part:
1. Patented technology of integral frame of paper cutter (Patent No .: ZL2003 2 0114966.5, ZL2005 2 0032913.8)
Technical characteristics: The whole main frame is cast into a whole, and the gantry adopts an I-shaped symmetrical distribution structure, which greatly increases the rigidity and resistance to deformation of the main body of the paper cutter.
At present, the main frame, left machine leg and right machine leg (electrical box and hydraulic box part) of domestic traditional paper cutter products are connected by screws, and the plane of the guide rail of the main machine frame is higher than the surrounding ribs In this way, the main frame of the paper cutter product is relatively rigid and easily deformed; and all the main frame spokes are arranged on the back, which is directly used as the outer surface of the main body of the paper cutter, and belongs to a single-sided support structure. The main body of this patented paper cutter is a whole. The frame adopts an I-shaped symmetrical distribution structure and a wide-width plate built-in cutter bed structure, which greatly increases the rigidity of the main body of the paper cutter and has good stability. It is not easy to deform, which improves the cutting accuracy and accuracy retention. The patented technology of the rear-mounted slider device greatly facilitates the maintenance and replacement of the slider. The replacement of the slider is reduced from the original 8 hours to 30 minutes, and does not require any lifting equipment. Moreover, the decorative shell of the machine can be replaced with different colors of outer decorative plates according to the needs of customers.
2. The patented technology of the double guide rail integral grooveless workbench (patent number: ZL94236552.6; ZL02276035.0)
Technical characteristics: It solves the worldwide problem of displacement of the paper pusher after collision, and its accuracy is more than eight times higher than the national industry standard.
A slot is opened in the middle of the working table of the traditional paper cutter, and the paper pusher moves forward and backward by the middle-guided movement. In the cutting process, when paper or other cut products collide with the paper pusher, it is easy to cause the paper pusher to oscillate left and right, causing displacement and tilt. As a result, the cutting is not parallel or square, which affects the cutting accuracy. In use, it is necessary to adjust and maintain the paper pusher frequently, which is time-consuming. The slot in the middle makes the worktable with poor strength and easy to deform. The dual-rail paper cutter uses a dual-rail overall grooveless worktable, and the paper pusher uses two guide rails on both sides of the worktable to guide, which overcomes the above-mentioned shortcomings of the traditional paper cutter and makes the paper pusher resistant The collision ability and stability are greatly improved, and it will not shift after being impacted to ensure the parallel precision of cutting. In addition, the table is not slotted, and the structural rigidity of the table is enhanced.
3. The patented technology of the balance type presser return device (patent number: ZL98229406.9)
Technical characteristics: The pressure of the paper press is balanced and stable throughout the whole stroke, and the pedal pressure is constant at any position.
The paper presses of traditional paper cutters all adopt a spring-type structure. The pressure value of the paper presses is uneven across the entire stroke. Under the condition of long-term alternating load, the spring is easy to fatigue and lose its elasticity. It needs to be adjusted frequently and replaced. Also very inconvenient. The Litong brand double-rail paper cutter adopts a new technology of counterweight balance structure. The pressure of the paper press is stable and constant throughout the stroke, the pressure value is the same at any position, and the operation is stable and the performance is reliable. There is no need to adjust and replace. It meets the European standard requirement that the pressure within the full stroke of the paper press does not exceed 300N.
4. Patented technology of electromagnetic clutch without air gap (patent number: ZL98229405.0)
Technical features: powerful and constant suction and braking force, large cutting force, fast speed and rapid braking.
Conventional paper cutters generally have the disadvantages of large clutch power consumption and slow response speed, and fail to meet the requirements of international standards for braking time not exceeding 80 milliseconds. The electromagnetic clutch brake device of the Litong paper cutter has a strong and constant suction and braking force, and a constant output thrust to ensure that the clutch mechanism works in an optimal state with minimal wear and maintenance. Thereby achieving low power consumption, large cutting force, fast response speed, and rapid braking, which meets the requirements of European standards.
5. Patent technology of paper pusher adjustment device (patent number: ZL99241123.8)
Technical characteristics: The adjustment mechanism of parallelism and verticality is completely separated, which solves the adjustment and locking problems of the paper pusher.
The adjustment mechanism of the parallelism and verticality of the pusher of the traditional paper cutter is the same locking positioning mechanism. When adjusting the parallelism and verticality, they interfere with each other, making adjustment and locking difficult. The positioning accuracy of the paper pusher is low, which affects the cutting accuracy. The adjustment mechanism of the paper pusher of the Litong brand paper cutter completely separates the adjustment mechanism of parallelism and verticality, and adjusts and locks the positioning separately. Without interfering with each other, the adjustment is very convenient, and the problem of adjustment and locking of the paper pusher is better solved. The positioning accuracy of the paper pusher has been greatly improved, so that the cutting accuracy of the paper cutter has been further improved.
6. Patent technology of overload protection device (patent number: ZL00244652.9)
Technical features: Provide a connecting rod safety device with overload protection and anti-disconnection mechanism. Even if there is a cutting overload, the device can effectively separate the cutter bed from the power safely, and return the cutter bed to a safe position; and the work of replacing the safety bolt becomes simple and convenient.
7. Patented technology of foot pedal traction valve (patent number: ZL 002239728)
Technical features: Control the foot press of the paper cutter to make the foot press mechanism more convenient and reliable.
8. Advanced linear guide and ball screw:
The forward and backward movement of the paper cutter pusher is driven by the screw. The paper pusher of the traditional paper cutter is pushed by the nut sliding directly on the screw rod, and the sliding friction between the nut sleeve and the screw rod is large, and the noise and wear are also large. The Litong double-rail paper cutter uses an internationally advanced ball screw and linear guide. The screw and guide are both bearing steel balls for rolling, and the sliding friction is changed to rolling friction. The friction is reduced and the noise is reduced, so that the pusher runs smoothly and quickly, and the positioning is accurate, which greatly improves the cutting accuracy and speed of the machine, and extends the service life of the machine.
9. Advanced transmission system:
The Litong double-rail paper cutter adopts an advanced double-enveloping worm gear drive system, which has the characteristics of stable operation, wear resistance, long service life, high transmission efficiency and energy saving.
10. Matt chrome plating platform and air cushion device:
Litong brand double-rail paper cutters are all chrome-plated and air-cushioned, so that the table is smooth and rust-free and the paper is easy and fast to push; to protect the eyes of the operator from the reflective stimulation of the table, the Litong brand paper cutter is The worktable is specially processed to matt chrome plating in accordance with international standards.
11. Bearings: reducers, clutches, ball screws and other key parts are made of SKF made in Germany or NACHI imported bearings from Japan.
12. Transmission belt: belt imported from Germany or South Korea.
13. Machine surface paint: adopt high-quality 110-degree high-temperature baking paint, the paint surface is hard, not fading, pollution-resistant, long-term bright as new.
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(2). Electrical and hydraulic parts:
1. Low-voltage electrical components (AC contactors, relays, switches, buttons, sensors, travel switches, connectors, wires, cables, etc.) are imported from the US AB, Germany, France and Japan according to the model.
2. Hydraulic system: advanced external modular hydraulic system. Superimposed double-acting fast oil cylinder (patented technology), simple structure, powerful function, low failure rate, easy maintenance; light-touch hydraulic foot mechanism, hydraulic differential foot valve to make the paper press operate smoothly; press paper The device meets the European safety standard of 200-40000N with a large range of adjustable pressure to adapt to the cutting pressure of different papers; hydraulic valves and oil pumps use Italian and American original products. The specific preparation is different according to different models, please refer to the preparation instructions of each model for details.
(3). Security system:
1. Infrared photoelectric protection system patent technology (patent number: ZL02134465.5)
Technical features: Provide infrared light pulse grating protection system to provide operators with high-standard safety protection that meets European paper cutter safety standards.
2. Safety latch protection device:
The Litong brand paper cutter is equipped with a built-in safety latch device to prevent the occurrence of the sliding knife phenomenon to the greatest extent, ensure the safety of the machine and the operator, and comply with European safety standards.
As early as 1997, the Litong brand paper cutter began to implement the European paper cutter safety standards. In addition to the above technologies, the patented technology of the balanced paper presser return device, the patented technology of the airless electromagnetic clutch brake, the patented technology of the overload protection device, etc. Both are safety agencies that are researched and developed around the safety standards of European paper cutters. The brake response time of the tool bed has reached the highest international standard of ≤80 milliseconds (the current standard that China is going to implement is ≤160 milliseconds). By 2003, the main safety technical indicators of Litong brand paper cutters had met the European paper cutter safety standards, and it was the earliest company in China to implement and popularize the European paper cutter safety standards on all models. Litong paper cutters are not only designed and equipped with safety protection mechanisms according to the European paper cutter standards, but also can detect the status of the safety protection mechanisms. When an abnormal situation occurs, they will automatically alarm to indicate the location of the abnormal phenomenon to ensure that the safety mechanism works normally.
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2. Special configuration of the model:
(1). QZYW L3-L6 series touch screen microcomputer program-controlled paper cutter
1. L6 series configuration:
(1). Computer part: the use of internationally advanced industrialized, standardized, modular computer control system, using the original Japanese Mitsubishi Corporation AC digital servo control positioning system, equipped with French Schneider 10.4 inch high brightness TFT60000 color true color LCD touch screen man-machine interface, User data storage space of 100 × 300 groups, multiple groups of data circular cutting function, greatly expanding the customer data space; LTEDT multi-function cutting program editing system, graphical user operation interface. International advanced computer digital positioning control system, data resolution 0.01mm, positioning accuracy ± 0.01mm. It also has self-diagnosis function and operation mode display, and can dynamically display the cutting and running status, and can be dynamically tracked. The maximum paper speed is 24 meters / minute.
(2). Special functions:
a. Intelligent paper press height control technology: under the intelligent paper press height control mode, the paper press can determine the return position (10 ~ 50 mm) according to the return height set by the user. When the height is fixed, the program drives the paper pusher to move to the next cutting position, reducing the return and down stroke of the paper presser, greatly improving the cutting efficiency.
b. Flexible paper pressure function: In the flexible paper pressure control mode, the user can select the slow movement distance of the paper press according to the height of the cutting object, so that the paper presser can quickly press down and contact the cutting object slowly. Greatly reduce the impact of the paper press on the cut objects, reduce the impact of the paper press on the cut objects, especially suitable for cutting carbonless copy paper or products that are afraid of pressure.
(3). Electrical parts: the main motor is equipped with American ABB motor; the paper feeder motor is equipped with Japanese Mitsubishi servo motor; the use of American AB company products AC contactors, relays, switches, buttons and other low-voltage electrical appliances; German sensors, transmission belts, wires, Cables, terminals, connectors.
(4). Hydraulic part: equipped with American VICKERS (Vickers) oil pump; Italian ATOS (Atos) hydraulic solenoid valve.
(5). SKF bearings made in Germany are used for clutches, screws and other important parts.
(6). Configure high-speed front steel blade.
2. L5 series configuration:
(1). Computer part: the use of internationally advanced industrialized, standardized, modular computer control system, using the original Japanese Mitsubishi AC digital servo positioning control system, equipped with French Schneider 10.4 inch high brightness TFT60000 color true color touch screen man-machine interface, user data Storage space 100 × 300 groups, multiple groups of data circular cutting function, greatly expanding the customer data space; LTEDT multi-function cutting program editing system, graphical user operation interface. The data resolution is 0.001mm, the positioning accuracy is ± 0.01mm, and there is a self-fault diagnosis function and operation mode display, and the cutting and running status can be dynamically displayed, and the dynamic tracking can be performed. The maximum paper speed is 20 meters / minute.
(2). Special function: Flexible paper press function: In the paper press mode, the user can select the slow movement distance of the paper press according to the height of the cut, so that the paper press can be pressed down quickly and slowly. Contact with the cut material greatly reduces the impact of the paper press on the cut material, and reduces the impact indentation of the paper press on the cut material. It is especially suitable for cutting carbonless copy paper or products that are afraid of pressure.
(3). Electrical parts: the main motor is equipped with American ABB motor; the paper pusher motor is equipped with Japanese Mitsubishi servo motor; the American AB company products AC contactors, relays, switches, buttons and other low-voltage electrical appliances; German sensors, transmission belts, wires, Cables, terminals, connectors.
(4). Hydraulic part: equipped with American VICKERS (Vickers) oil pump; Italian ATOS (Atos) hydraulic solenoid valve.
(5). SKF bearings made in Germany are used for clutches, screws and other important parts.
(6). Configure high-speed front steel blade.
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3. L3 series configuration:
(1). Computer part: The use of international advanced digital positioning control technology, using the original Japanese Mitsubishi Corporation controller, AC servo positioning system, 920 models use 7.7 inches true color touch screen man-machine interface, models above 1150 use 10.4 inches true Color touch screen man-machine interface, data resolution 0.01mm, positioning accuracy ± 0.025mm, maximum paper speed 16m / min; programmable 100 groups, each group of programs can perform multiple sets of different cutting size cycle operation, cutting knife The number is unlimited. With self-diagnosis function and operation mode display, it can be dynamically tracked, and the operating system can be automatically maintained.
(2). Electrical parts: the main motor is equipped with American ABB motor; paper feeder motor is equipped with Japanese Mitsubishi servo motor; American AB company products AC contactors, relays, switches, buttons and other low-voltage electrical appliances; German sensors, transmission belts, wires, cables , Terminals, connectors.
(3). Hydraulic part: Equipped with American VICKERS (Vickers) oil pump; Italian ATOS (Atos) hydraulic solenoid valve.
(4). Japanese bearings are used for important parts such as clutches and screws.
(5). Configure high-speed front steel blade.
(2). QZYK S1-S3 series touch screen microcomputer programmable paper cutter
1. S3 series:
(1). Computer part: Adopting advanced digital analog positioning technology, original Japanese Mitsubishi PLC, variable frequency speed regulator, American ABB variable frequency motor, 920 models use 7.7-inch true color touch screen man-machine interface, and models above 1150 use 10.4 inches TFT true color touch screen man-machine interface, data resolution 0.1mm, positioning accuracy ± 0.1, paper speed up to 14m / min; programmable 100 groups, each group of programs can carry out multiple sets of different cutting size cycle operation, cutting The number of cutters is unlimited. It also has self-diagnosis function and operation mode display, which can be dynamically tracked and can automatically maintain the operating system.
(2). Electrical parts: American AB company AC contactors, switches, buttons and other low-voltage electrical appliances; American ABB motors, German sensors, switches; motors, air pumps, etc. using domestically produced high-quality products that meet ISO standards.
(3). Hydraulic part: American VICKERS (Vickers) oil pump, Italian ATOS (Atos) hydraulic solenoid valve,
(4). Japanese bearings are used for important parts such as clutches and screws.
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2. S1 + series:
(1). Computer part: Adopting advanced digital analog positioning technology, original Japanese Mitsubishi PLC, variable frequency speed regulator, American ABB variable frequency motor, 7.7 inch TFT true color touch screen man-machine interface, data resolution 0.1mm, positioning accuracy ± 0.1 , Paper pushing speed can reach 12 meters per minute, 100 groups can be programmed, each group of programs can carry out multiple groups of different cutting size cycle operation, the number of cutting knives is unlimited. It also has self-diagnosis function and operation mode display, which can be dynamically tracked.
(2). Electrical appliances: Imported electrical components from American AB company, American ABB motors; Japanese or Korean sensors and switches; air pumps and other domestically produced high-quality products that meet ISO standards.
(3). Hydraulic part: It adopts ISO standard hydraulic components and is equipped with Italian ATOS (Atos) hydraulic solenoid valve.
(4). Japan, NACHI bearings are used for clutches, screws and other important parts.
3. S1 series:
(1). Computer part: Using advanced digital analog positioning technology, original Japanese Mitsubishi PLC, frequency converter, 5.7-inch TFT true color touch screen man-machine interface, data resolution 0.1mm, positioning accuracy ± 0.1, paper speed can be Up to 10 meters / minute, 100 groups can be programmed, each group of programs can carry out multiple sets of different cutting size cycle operation, the number of cutting knives is unlimited.
(2). Electrical appliances: Imported electrical components from American AB company, American ABB motors; Japanese or Korean sensors and switches; air pumps and other domestically produced high-quality products that meet ISO standards.
(3). Hydraulic part: It adopts ISO standard hydraulic components and is equipped with Italian ATOS (Atos) hydraulic solenoid valve.
(4). Japan, NACHI bearings are used for clutches, screws and other important parts.
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