Bag Making Mechanism Bag Detailed Process Flow

(1) Loading rack

Slide iron up and down through a cylinder for easy loading. The reel dies with a snail QQ. After loading, bind the film with a low pressure wide bag. The drum is turned counterclockwise.

(2) tail frame rubber roller

The two rubber rollers are pressed tightly and driven by a small motor to rotate and pull the film.

(3) Rolling curtains

The roller curtain is generally made of mat or plastic, which mainly plays the role of press material and tension control. An inductor behind the cursor detects whether there is a film ahead to control the running and stopping of the roller motor on the tail frame. If there is, stop; if there is not, move.

(4) Pause board

Made of stainless steel, play a flat film, prevent bag wrinkles, ensure the size of the bag function. So the pause board should be flat. A light weight object can be placed above the film to flatten the film.

(5) Light eye

Control the length of the bag, the cut position, and the color label length by tracking changes in the level of the printed color on the bag. The optical eye can be moved forward and forward by adjusting the screws at both ends, and the optical eye stop position is corrected (2-3mm). A sheet of white paper can be placed under the film directly facing the light eye to increase its sensitivity. If the pattern is complex, you can also pad white paper on the pattern to ensure that the square pattern under the light is straight, without other colors and pattern interference before and after.

Optical eye location: ① flat straight line. ② There is no other pattern interference before the pattern, otherwise it will affect the optical eye stop.

(6) Seal

The sealing knife is triangular, and there are a group of rollers at each end to ensure that the film runs smoothly at the sealing knife. The blade roller is generally a heat-resistant silicone roller. There is a heat-resistant tape on the knife and on the silicone roller. There are two copper tiles at both ends of the sealing knife to control the sealing knife up and down, so the lubricating oil should be often added here.

Change the knife cloth: ① Polish the sealing knife with sandpaper first.

② Stick the knife cloth in the middle of the knife, towards both sides to avoid bubbles and folds in the middle of the knife cloth, otherwise it will lead to virtual sealing.

(7) alignment bars

The height of the iron bar is controlled by adjusting the screw, and then the position of the film cutting is adjusted.

(8) Corrugated roller

There is a spring on it to avoid static electricity resulting in film entanglement on the roller, and a special motor controls its operation. There are special electrostatic removal devices before sealing and after cutting the knife (a iron rod with a row of iron needles)

(9) Cutting knife

There are two upper and lower cutting knives, the lower cutting knife is fixed, the blade is tilted upward about 5° Angle, and the film is cut by the upper cutting knife. The cutting knife is mostly cast iron, and both ends of the knife are lubricated. The setting screw of the upper cutter can be adjusted to control the front and back distance when it is in contact with the lower cutter.

(10) Fold

The folding is divided into three steps, and the bag making machine folds automatically. If the customer requires the word to face out when packing, the roll is rotated clockwise when winding. If the words face inward, the reel rotates counterclockwise when winding.