Die cutting indentation process flow and parameter setting

The process of die cutting and creasing process is:

Previous version → Adjust the pressure → Determine the rules → Stick the rubber → Test pressure die cutting → Formal die cutting → Clean up the waste → Finished product inspection → Point packaging.

Processing technology

Take the main object of die cutting and indentation processing-carton as an example, generally need to go through the process of opening → printing → surface processing → die cutting and indentation → box making.

Before the die-cutting indentation, a stamping plate is to be made, and the grid position of the stamping plate must match the printing grid position; and then the post-printed cardboard is processed on the die-cutting machine using the stamping plate technical process.

The manufactured stamping plate is installed and fixed in the plate frame of the die-cutting machine, and the position is initially adjusted to obtain the preliminary die-cutting indentation effect. The operation process is called the upper plate. Before publishing, it is required to proofread the die-cut and indented version, and confirm that it meets the requirements before starting the publishing operation.

Then adjust the layout pressure. It is generally carried out in two steps. First adjust the pressure of the steel knife: after padding the paper, start the press several times, the purpose is to flatten the steel knife, close to the backing plate, and then use cardboard with an area larger than the die cutting plate (usually 400 ～ 500g / m2) Perform pressure test, according to the cutting marks cut by the steel knife on the cardboard, adopt a method of gradually increasing or decreasing the number of pads in part or all to make the pressure of each knife line on the layout uniform; then adjust the pressure of the steel wire; the general steel wire It is 0.8mm lower than the steel knife. In order to obtain the ideal pressure for the steel wire and the steel knife, the pressure of the steel wire should be carried out according to the nature of the molded cardboard. When the adjustment only considers the thickness of the paperboard as the main factor, the thickness of the backing paper is determined by the theoretical calculation method or empirical estimation method based on the test based on the thickness of the pressed paperboard.

The formula for calculating the thickness of potential paper using the theoretical calculation method is as follows:

X = (steel knife height-steel wire height)-h

In the formula: X is the thickness of the backing paper; h is the thickness of the pressed cardboard.

The rule is used to determine the position of the processed cardboard relative to the stencil in the die cutting and indentation process. After the plate pressure is adjusted, the template should be fixed to prevent misalignment in the molding. When determining the position of the rule, it should be reasonably selected according to the product specifications, and generally the principle of centering the molded product as much as possible.

After determining and pasting the positioning rules, you should first try to press a few sheets and carefully check. The folding carton shall also be tested for molding specifications and quality.

The rubber sticks to the main steel blade of the template. On both sides, the elastic restoring force of Linan rubber can push the cardboard separated from the die-cutting part out of the cutting edge. The rubber should be 3 to 5mm above the blade.

1- Lining material 2- Steel knife 3- Eraser

After all the adjustment work is ready, the samples should be molded first, and a comprehensive inspection should be conducted to see if the product indicators meet the requirements. After confirming that the inspected items have reached the standards, the samples can be officially started and the production can be officially started. Every working day, the product requirements should be checked again in order to find and deal with the problem as soon as possible.

For the products after die-cutting and indentation processing, the excess edge material should be removed, which is called waste removal, also called blanking, chip removal, tearing edge, core pushing, etc., that is, the box core is removed from the bad material and cleaned. The cuts of the products after cleaning should be smooth and smooth. If necessary, sand the paper to polish the cuts or use a scraper.

After cleaning, carry out finished product inspection. After passing the product quality inspection, carry out point packaging, and remove the defective products from the points. The error should not exceed 2 to 10,000.

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FAQ

Q1: Are you manufacturer or trading company?

A1: We are manufacturer.

 Q2: What is the material of products?

A2: Natural Birch.
Q3: How long will you deliver the products?
A3: 30~60 days after receiving 30% T/T deposit.
Q4: What is the payment term?
A4: T/T 30% as deposit in advance and balance 70% should be paid when goods ready to ship  or L/C at sight.

 Q5: Do you provide samples?

A5:Yes, free samples available.

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