Instantaneous cutting speed should always be corrected according to the orderliness of the cutting edge of the paperboard. A limit switch is placed on the indication lever of the operation side of the cutting machine. When the slider of the crank reaches the highest or lowest position, the limit switch works.
The adjustment of the instantaneous speed should be carried out at a driving speed of not less than 25m/s. No parking adjustments.
Engaging roller:
Each pair of arbors has a pair of infeed rollers in front. The infeed roller has a faster line speed than the feed speed, so its function is to correct the tension between the double-sided machine and the cross-cutting machine. Suddenly it is tight and tight. The infeed roller is equipped with a counterweight to adjust the pressure on the board. The position of the counterweight can be adjusted.
Feed tray:
The feed tray is divided into upper and lower layers. The feed roller speed is slightly faster than the feed speed so that the cut cardboards prevent each other from overlapping interference.
A paperboard brake pad is installed on the paper feeding rack to prevent the paperboard from being disarranged after being cut off, and the brake pad can adjust the pressure with the change of cutting length.
Adjust knife:
The two blades are pressed on the cutter shaft with a pressure plate, and the gap size between the blades affects the cutting quality. The gap is too large cardboard can not be cut, it is best to adjust to 0.02 ~ 0.03mm as well. However, the size of the gap is also not good. At this time, the two blades easily hit the blade. When adjusting the knife, if the clearance is too large, you can first adjust the rotation of a knife shaft around its own axis. If you loosen the screw 1, the screw 1 and the screw 1 play a role in the pin 3 to produce a gap. At this time, tighten the screw 2, then the cutting edge Rotate clockwise. Instead, loosen the screw 2 first, and tighten the screw 1 so that the knife shaft rotates counterclockwise. Due to the rotation of the cutter shaft, the gap between the upper and lower cutter shaft blades can be changed. However, it should be noted that the gears at both ends of the cutter shaft should be adjusted to be a single-piece cutter, because the gear is a two-piece combination and the cutter does not function as a cutter. The double-set gear is used to wear gears. After adjusting the gap clearance. The drive shaft is a single piece gear shaft.
Use a rotary arbor to change the tip clearance during coarse adjustment. Fine adjustment is to adjust the relative position of the blade and the knife shaft. It has been described above that the blade is pressed on the knife shaft through a row of screws with a pressure plate, and a top wire between each two screws is used for the top blade. If there is a gap in the tip of a certain segment, the compression screw is loosened and the tip wire is pulled, so that the blade part and the cutter shaft generate a relative displacement, thereby achieving the purpose of fine tuning. Fine-tuning is best to start from the end of the blade, step by step gradually transferred to the other end, and can be cut with thin paper (newspaper) test can be cut, where the cut can also be part of the paper adjustment. When the knife is adjusted, the shaft is manually rotated, and the rotation speed is very slow and slow.
Sharpening knife:
Sharp edges should always be maintained to achieve good cutting results. Grinding tools are conditional on the use of grinders. Unconditional grinding can be done with an oil grindstone. And ensure that the blades are on the same line. The blade should be properly fixed when the knife is worn.
Operational notes:
Changing the cutting length or adjusting the instantaneous speed should be carried out under the operation of the machine. The operating speed is not lower than 25mm/min. Otherwise, the continuously variable transmission and the instantaneous speed-regulating mechanism will be damaged. Pay special attention to this.
When changing the cutting length, you can manually (adjust the length and instantaneous speed) or automatically (changing the cutting length and instantaneous speed at the same time), but be aware that some ranges should correct the instantaneous speed after changing the cutting length.
The spline shaft of the transmission must not be lubricated too much. When it is too large, the oil will splash on the conical friction disc and the conveyor belt, causing slippage resulting in poor cutting length.
Lubrication, always check the oil cup, the oil in the cup is full of oil, in order to check whether the oil is injected into the bearing, you can remove the cup to see if the oil out of the hole.
To check whether the crankshaft of the instantaneous speed-regulating mechanism is immersed in oil, always check that the oil tank is filled with oil.
Cutting speed limit:
The cardboard cut-off length and the maximum allowable speed when starting up should be as follows:
Third, the prospects of the cutting machine transformation This cutting machine is all mechanical transmission, so maintenance is more troublesome, cardboard cutting edge is not ideal, the error is larger (up to 20mm), causing great losses, now the most advanced or imported The same type of equipment is controlled by a computer. The main benefits are:
1 easy to operate;
2 quality assurance;
3 cutting precision; can achieve better economic benefits, the error is only 2mm, equivalent to one-tenth of the mechanical transmission.
Corrugated board slitting machine technology (below)
January 22 17:08:10, 2019
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