Flat sheet paper cutter is a kind of cutting machine with a wide range of applications. It can be used to cut paper, leather, plastic, cardboard and other materials. The paper cutter is mainly composed of a host (also known as a gantry), a workbench, a paper pushing mechanism, a paper pressing mechanism, a cutting mechanism, etc. The paper pushing mechanism is used to push the paper for positioning and post regulation. The paper pressing mechanism presses the paper in place to ensure that the original positioning accuracy is not destroyed during the cutting process. Side block gauges, the workbench plays a supporting role.
Printing, packaging, book binding and other production from cutting to printing of finished products and the cutting of the bound book after binding require a paper cutter to cut, so the paper cutter is an important equipment for post-press processing. Flat sheet cutters are widely used in printing plants, bookbinding plants, packaging plants, paper product processing plants, etc.
Flat sheet cutter cutting process
1) Position the paper pusher according to the size of the paper being cut
2) Make the paper that has been collided close to the front surface of the paper pusher and the side fence to perform paper positioning
3) The paper presser first lowers and presses the paper, then the cutter then falls and cuts the paper
4) After the cutting is completed, the cutting knife leaves the paper stack and returns, and then the paper presser is raised and reset.
Factors affecting the safe use of the paper cutter
The safety of the paper cutter is a problem that many digital printing practitioners tend to overlook, and it affects the safe use of the paper cutter in the following ways:
1. Braking device. In order to save money, many manufacturers use the principle of circuit braking, that is, cutting off the power supply of the cutter motor through the upper and lower limit sensors. This device may cause "slider" in the event of sudden power failure, loose socket, and sensor failure Extremely dangerous situation. In order to prevent this from happening, it is necessary to use a motor assembly with a mechanical brake device, so that no matter what circuit failure occurs, the motor is locked to avoid accidents.
2. Double button operation principle. This requires the two buttons to be pressed at the same time, otherwise the cutter motor will not move, which can guarantee the absolute safety of single-person operation.
3. In the actual use process, two people often cooperate to operate, so that the situation becomes very dangerous, which requires the cutter to be equipped with front and rear safety covers. When the safety cover is opened, the motor will not move to ensure safety.
4. The above is a safety factor that affects the use process, so pay attention to the replacement of the blade during maintenance and maintenance, use the knife holder to ensure that the blade edge is closed, not only to ensure the safety of people, but also to ensure that the blade is not damaged.
5. Furthermore, the removed blades must not be left at will to avoid hurting people.
The slitting machine is an important equipment in the paper processing industry. Paper manufacturers use this equipment almost every day. If a failure occurs, it will hinder the production process and the manufacturer will also lose some. Generally speaking, if the staff does not pay attention to the daily maintenance, the cutting machine will often have some difficult problems. In order to solve these small problems from time to time, Zhengjia Machinery has summarized the following points and often encountered For your reference, I hope to help everyone:
First, the paper slitter has uneven winding. This situation is mostly due to the unsuitability of the paper core, as long as the paper core that meets the required inner diameter is replaced, and in addition, the use of the winding pressure roller during the winding process can also avoid uneven winding of the slitter.
Second, the trend of slitting and rewinding materials. This is mainly due to the wrong winding tension. Adjust the appropriate winding tension of the paper slitter. The winding uses a pressure roller and wraps the slitting material through the pressure roller before entering the winding paper core.
Third, meter counting is not allowed. In this kind of problem, the double wheels of the metering wheel can contact the feeding rubber roller at the same time, and make a mark on the metering wheel and crank 5 times to count 1 meter; otherwise, the metering meter is replaced.
These points are the problems that the staff usually encounter when operating the slitting machine. In order to quickly solve these points, you must keep these points in mind. There may be other new problems. The manufacturer of paper products machinery, let professional technical staff help to solve.
Film cutting machine performance and characteristics:
1. The machine is controlled by computer, and the performance and characteristics of A4 copy paper cutting machine;
2. Center winding mode, the host uses frequency conversion speed regulation;
3. This machine adopts PLC touch screen control, servo motor to control fixed-length cutting;
4. The transmission system adopts pneumatic, photoelectric sensor and other centralized control. The machine integrates light, electricity and gas. It is easy to operate and has high cutting precision. The round edge slitting (or flat knife structure) waste edge is automatically discharged;
5. The advantages of mechanical stability and low noise;
6. Motor frequency conversion speed regulation, manual feeding (or pneumatic automatic feeding) unwinding shaft with cone sleeve type inflation shaft (3, 6), automatic metering, alarm and other functions, unwinding adopts photoelectric automatic correction correction system, Make irregular materials can be cut normally or (gas-sensitive hydraulic pressure edge system);
7. Magnetic powder clutch tension control. Automatic counting and alarm stop. Magnetic powder tension control. A and B axis (inflatable type) are used for winding;
8. It can be cut longitudinally in multiple sections, and the waste edge is automatically eliminated by the fan.
Setting and controlling safety operation rules of slitting machine
1. Set the slitting menu according to the film type, thickness, length, width, etc. arranged in the slitting plan.
2. File the corresponding BOPP film file from the PDF.
3. Set the winding length and width of the film with corresponding specifications.
4. Select the corresponding winding station, adjust the roller arm and roller, and install the paper core of corresponding specifications.
Film cutting machine performance and characteristics:
1. The machine is controlled by computer, and the performance and characteristics of A4 copy paper cutting machine;
2. Center winding mode, the host uses frequency conversion speed regulation;
3. This machine adopts PLC touch screen control, servo motor to control fixed-length cutting;
4. The transmission system adopts pneumatic, photoelectric sensor and other centralized control. This machine integrates light, electricity and gas. It is easy to operate and has high cutting precision. The round edge slitting (or flat knife structure) waste edge is automatically discharged;
5. The advantages of mechanical stability and low noise;
6. Motor frequency conversion speed regulation, manual feeding (or pneumatic automatic feeding) unwinding shaft with cone sleeve type inflation shaft (3, 6), automatic metering, alarm and other functions, unwinding adopts photoelectric automatic correction correction system, Make irregular materials can be cut normally or (gas-sensitive hydraulic pressure edge system);
7. Magnetic powder clutch type tension control, automatic counting, alarm stop, magnetic powder tension control, winding A and B axis (inflatable type);
8. It can be cut longitudinally in multiple sections, and the waste edge is automatically eliminated by the fan.