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Method of Hot Stamping QR Code or Pattern Identification

A pattern identification and cursor technology, which is applied in the field of hot stamping two-dimensional codes or pattern identification, can solve the problems of high distance accuracy requirements between two-dimensional codes, failure to meet production requirements, and failure to meet requirements, so as to avoid cost risks and meet Large-scale hot stamping, using a wide range of effects

Active Publication Date: 2016-04-06
SHANGHAI TECHSUN ANTI COUNTERFEITING TECH HLDG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since large-scale hot stamping machines generally perform step-step hot stamping during the hot stamping process, the requirements for the distance accuracy between two-dimensional codes are relatively high. At present, the accuracy of existing methods has accumulated errors, so they cannot meet the requirements.
As described in the patent CN102184676A, its radial error is 0.2mm, and if the jump stamping with 10 times the spacing will produce a maximum actual error of 2mm, it cannot meet the production requirements at all.

Method used

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  • Method of Hot Stamping QR Code or Pattern Identification
  • Method of Hot Stamping QR Code or Pattern Identification
  • Method of Hot Stamping QR Code or Pattern Identification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] use figure 1 and figure 2 installation. Two Yikema F30 laser inkjet printers are used.

[0043] The laser is set as follows: output power 80%, laser repetition rate 80KHz, etching range 200×200mm, etching line speed 8000mm / s, empty pen speed 10000nn / s, filling line spacing 0.05mm. The jump stamping spacing L is 220.0mm. According to the hot stamping needs, set N=5, and calculate the spacing L between two adjacent patterns 2 The length is 20.0mm, and the stepping distance of the motor is set to 20.0mm±0.2mm.

[0044] The light output distance of the two lasers is 220.0mm.

[0045] During the etching process, the linear speed of the anodized aluminum foil is 5.0m / min, and the thickness of the anodized aluminum foil is 0.15mm±0.2mm. The uniformity of the end face of the anodized aluminum foil is set at ±0.2mm.

[0046] The anodized aluminum foil containing two-dimensional code or pattern information produced in this embodiment has no radial deviation, and the maximu...

Embodiment 2

[0048] In this embodiment, 8 Xiangsheng Laser D2000 fiber laser inkjet printers are used. Every two sets is a group, the light emitting distance is 210.0mm, and 4 groups of lasers are arranged at equal intervals horizontally.

[0049] The laser is set as follows: output power 50%, laser repetition rate 20KHz, etching range 200×200mm, etching line speed 3000mm / s, empty pen speed 10000nn / s, filling line spacing 0.5mm. The spacing L of jumping hot stamping is 210.0mm, and N=3 is set according to the needs of hot stamping, and the distance L between two adjacent patterns is calculated 2 The length is 30.0mm, and the stepping distance of the motor is set to 30.0mm±0.2mm.

[0050] During the etching process, the linear speed of the anodized aluminum foil is 3.0m / min, and the thickness of the anodized aluminum foil is 0.30mm±0.2mm. The uniformity of the end face of the anodized aluminum foil is set at ±0.2mm.

[0051] The anodized aluminum foil containing two-dimensional code or p...

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Abstract

The invention discloses a two-dimensional code or pattern identification hot stamping method which is completed in a device provided with two laser devices with laser heads. The laser heads are arranged in parallel, a gap is reserved between the laser heads, and the laser heads are electrically connected with a positioning photoelectric probe. The two-dimensional code or pattern identification hot stamping method includes the following steps: (1) setting the gap between the two laser heads, the light emitting focal lengths of the laser devices and N which is an integer ranging from one to one hundred, and calculating L2 according to the formula L=(2*N+1)*L2, (2) moving a film to the position below the laser heads, and etching two same patterns or two-dimensional codes and tracking cursors on the film, and (3) continuously forwards moving the film, after the positioning photoelectric probe detects the tracking cursors, triggering the laser devices to carry out etching again, rolling the film with a rolling device provided with a stepping motor with the stepping distance L2, and obtaining the product. According to the two-dimensional code or pattern identification hot stamping method, the two-dimensional codes or patterns without radial gap errors can be etched on the film, the errors can be zero, and the requirements of large-scale hot stamping can be met.

Description

technical field [0001] The invention relates to a method for stamping a pattern or a two-dimensional code mark on an anodized aluminum stamping foil. Background technique [0002] The hot stamping process uses the principle of heat transfer to transfer the aluminum layer in the anodized aluminum to the surface of the substrate to form a special metal effect. Because the main material used for hot stamping is anodized aluminum foil, hot stamping is also called anodized aluminum hot stamping. Anodized aluminum foil is usually composed of multi-layer materials, the base material is usually PE, followed by separation coating, color coating, metal coating (aluminum plating) and glue coating. [0003] Hot stamping has two main functions: one is surface decoration, which can increase the added value of products. The combination of hot stamping and other processing methods such as embossing and embossing can better show the strong decorative effect of the product; the second is to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J3/413B41M5/00
Inventor 徐良衡杨凯宋卓
Owner SHANGHAI TECHSUN ANTI COUNTERFEITING TECH HLDG
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