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Tape technology – Notes for die cutting after press
Release time:
2021-01-13 14:57
【概要描述】 In the present packaging tape industry, in response to the special requirements of automobiles, mobile phones, electronics, electrical appliances and so on, all kinds of precision die-cutting tape in the shape of the coil is born.
In the present packaging tape industry, in response to the special requirements of automobiles, mobile phones, electronics, electrical appliances and so on, all kinds of precision die-cutting tape in the shape of the coil were born.
Die-cutting process is the most commonly used process in the production of packaging tape, is to use the die-cutting knife according to the design requirements of the pattern combination die-cutting version, under the action of pressure, the tape or other sheet blank rolled into the required shape or cut mark molding process. Indentation process is the use of line pressing knife or line pressing die, through the action of pressure on the sheet pressing line mark, or the use of rolling line wheel on the sheet rolling line mark, so that the sheet can be bent according to the predetermined position.
Usually die cutting indentation process is the die cutting knife and the line knife combination in the same template, in the die cutting machine at the same time die cutting and indentation process, referred to as die cutting. The main process of die cutting molding: version → adjust pressure → determine the distance → paste rubber strip → pressure test die cutting → formal die cutting molding → waste cleaning → finished product inspection → point packaging.
Proofread the die-cutting version done, roughly observe whether it meets the requirements of the design draft.
Steel wire (pressing knife) and steel knife (die cutting knife) position is accurate; Whether the knife line of slotting and opening is the whole line, whether the corner of the line is the garden corner; In order to facilitate waste removal, whether the connection of adjacent narrow waste edges increases the connection part, so that it is joined together; Whether there is a sharp Angle at the junction of the two lines; Whether there is a sharp corner line ends at the middle paragraph of another line. Die-cutting once the above problems, should immediately notify the plate making personnel to correct to avoid more time waste. Then, the production of a good die-cutting version, fixed in the installation of the die-cutting machine in the frame, the initial adjustment of the position of the version.
Adjust pressure, set rules and stick rubber plugs
Adjust the pressure of the layout, first adjust the pressure of the steel knife. Pad paper, the first startup imprint several times, in order to touch the steel knife flat, and then use more than die cut version of the board for pressure test, according to the steel knife cut on the board, the use of local or all gradually increase pressure or reduce the number of lining paper layers, so that the layout of the knife line pressure to achieve uniform.
In general, the steel line is 0.8mm lower than the knife line (because of the difference of corrugated cardboard, cardboard thickness gap is large, should be adjusted according to the actual situation). In order to make the steel line and steel knife both get ideal pressure, the steel line pressure should be adjusted according to the nature of the die cut cardboard. Usually according to the thickness of the die cut cardboard to calculate the thickness of the pad paper, that is, the thickness of the pad paper = steel knife height - steel wire height - the thickness of the die cut cardboard.
Rubber cartridge plug should be placed on both sides of the die cutting version of the main steel knife version base, the use of rubber cartridge good recovery, after the separation of cardboard from the edge. Generally speaking, the rubber article should be about 1.2 mm above the die cutting edge, rubber article distance knife line 1 mm ~ 2 mm advisable, if only on blade installation, rubber elastic plug not expansion in the direction of blade after compression, only to another direction, caused to both sides of paper, die cutting knife has not cut off the paper, has been broken by rubber snap, easy to produce paper wool.
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