The grid knife hybrid folding machine is the main binding machine of books and periodicals. It is composed of paper feeding mechanism, fence folding mechanism, folding knife folding mechanism, paper receiving mechanism and electrical control system. It is characterized by fast folding speed, stable performance, many folding styles, no wrinkles, high production efficiency and convenient maintenance. The following will take zyh660 as an example to explain the operation process of the folding machine.

First, push the safety cam, check the machine, and then start the following operations:

1. Operation of paper feeding mechanism

(1) Stacking operation

A stack of paper shall be prepared for loading, and the thinner paper shall be indented first; when stacking paper, the stacking table shall be lowered to a proper height.

Special note: the paper stacking operation directly affects the quality of folding, so the side gauge and front gauge should be flush when stacking paper.

(2) Adjustment of paper separating mechanism

When the paper pile rises to a certain height, it will automatically stop (controlled by the height probe), at this time, the paper separating suction nozzle is about 1mm higher than the paper pile.

The paper separating mechanism can be adjusted according to the size of the paper.

The air volume of the blowing nozzle is suitable for the stamp to slightly float under the suction wheel. The brush or steel sheet on the separating mechanism is used to prevent the double sheets produced when the paper is separated, and its adjustment is based on the standard of no double sheets and no paper disorder.

(3) Adjustment of suction wheel

Suction wheel is controlled by solenoid valve, and its main function is to transport paper. The inspiratory capacity can be adjusted by the knob. Rotate clockwise, the inspiratory capacity will decrease, otherwise, the inspiratory capacity will increase.

Suction point of suction wheel has three positions: front, middle and back. Generally, the suction point is in the middle vertical position.

The suction length of the suction wheel is controlled by the selection switch on the operation panel. The paper feeding speed is slow and the suction time is longer. On the contrary, the suction time is shorter.

(4) Regulation of double tension controller

Fold the paper in half (twice the thickness of the origami sheet) under the knurled screw of the controller. The sector is driven to push the microswitch. The solenoid valve is de energized and the suction is cut off. If you do not stop feeding, fine tune the knurled screw to stop it.

(5) Adjustment of paper feeding table

Loosen the star knob, adjust the paper feeding rule with the ball plate to the size of the printing sheet, and tighten the star knob. Adjust the supporting paper steel strip according to the width of the printing sheet to make the side edge of the printing sheet pass on the steel strip.

The paper pressing ball on the ball plate has a steel ball and a plastic ball, whose function is to cooperate with the paper conveying belt to ensure that the printing sheet can enter the fence correctly along the side gauge. In actual production, steel balls and plastic balls should be placed according to the properties of paper. Generally, 1-2 steel balls are placed near the folding roll to facilitate paper alignment. If the paper cutting is uneven or the two sides of its mouth are inconsistent, the knurled nut can be adjusted. In addition, rotate the star handle to fine tune the paper position, so that the center of the folding post is aligned with the center of the first folding knife.

(6) The adjustment of the linear speed of the folding roll and the paper feeding distance

Use the frequency conversion speed control motor speed to change the linear speed of the folding roller, turn the knob right to increase speed, and turn left to decrease speed.

Special note: the mechanical knife folding machine adopts the stepless transmission. When adjusting the folding knife frequency and the folding roller speed, it must be carried out in the operation of the machine.

The paper feeding distance refers to the distance between the previous paper and the next paper. Generally, the paper distance is the paper length plus 100-150 mm. The paper feeding distance of the electronic knife folding machine is set in the human-machine interface, while the mechanical knife folding machine should be operated. Turn the hand wheel clockwise to reduce the paper feed spacing and speed up the folding; otherwise, the paper feed spacing increases and the folding speed decreases.

2. Adjustment of folding mechanism of fence

(1) Adjustment of the gap between folding rollers

Due to the different thickness of paper in actual production, the parallelism and gap of the folding roll should be adjusted properly.

Operation method: loosen the fastening screw on the support; press the paper cut in advance with the same thickness as the origami sheet into the support platen to increase the gap between the origami roll; put the two paper strips with the same thickness into both ends of the origami roll, drag the paper strip by hand and adjust the knurled cock; pull the paper strips on both sides, and lock the screw when the tension on both sides is the same.

The change of folding will directly affect the adjustment of the gap between folding rollers. The following is an example of 6-sided roll folding.

When the printing sheet comes out of the upper fence, the former part has become a double sheet, and the latter part is a single sheet. When the paper passes through the lower folding roller, the gap adjustment of the folding roller should be based on a part of single sheets later. If the gap of the folding roll is adjusted based on the double sheets, when the single sheet passes through, the gap of the folding roll is too large, which will cause the sheet to fold askew. If the sheet has been folded into 6-sided 3-page roll, then insert 3 pieces of paper under each pressing plate.

(2) Adjustment of stop gauge

The number of folding fences determines the way and number of folding.

If the fence is folded to 1 / 2 of the total length of the printing sheet, the unused fence shall be closed with a baffle. If it is reverse folding, close the upper fence and adjust the lower fence gauge to 1 / 2 of the total length of the printing sheet.

Adjustment method: loosen the handle, turn the hand wheel, adjust the paper gauge according to the scale marked on the fence. For the winding fold, the gauge is adjusted to the 2/3 of the print length in the upper fence and transferred to the 1/3 of the print master in the lower hurdle.

The upper fence and the lower fence can be used for the Z-fold of 6 pages, and the stop gauge can be adjusted to 1 / 3 of the total length of the printing sheet in the upper fence and the lower fence.

(3) Adjustment of folding space of fence

The triangle space is formed between the fence plate and the folding roller, the space size and the space between the fence plates