CN-224203064-U - On-line detection device for coating quality of hot stamping foil of electric aluminum

CN224203064UCN 224203064 UCN224203064 UCN 224203064UCN-224203064-U

Abstract

The utility model discloses an online detection device for coating quality of an electrochemical aluminum stamping foil, which relates to the technical field of winding equipment and is arranged on an electrochemical aluminum stamping foil coating production line and comprises a coating mechanism, a coating thickness and uniformity detection mechanism and a coating surface defect recognition mechanism. The coating mechanism comprises a supporting wallboard, a substrate guide roller, a coating roller and a drying box, the coating thickness and uniformity detection mechanism sequentially comprises a front low-level guide roller, a front detection box, a horizontal high-level guide roller, a rear detection box and a rear low-level guide roller, the thickness and uniformity of the coating are detected through laser, and the coating surface defect identification mechanism comprises a light source, an image acquisition device and a defect detection unit, and surface defects are identified through image comparison. The device combines the multi-sensor data fusion and the intelligent algorithm, realizes the upgrading from single index detection to full flow quality control, can feed back production problems in real time, improves detection precision and efficiency, and meets the modern online detection requirements.

Inventors

HE ZONGXIU
GONG LIN
YANG ZHENGDE
Zheng Hanyiyang
WU WENTAO
Liao Jiancai
XIE KAIWEI

Assignees

云南玉溪东魅包装材料有限公司

Dates

Publication Date: 20260505
Application Date: 20250717

Claims (3)

1. The online detection device for the coating quality of the electrochemical aluminum stamping foil is arranged on an electrochemical aluminum stamping foil coating production line and is characterized by comprising a coating mechanism, a coating thickness and uniformity detection mechanism and a coating surface defect identification mechanism; The coating mechanism comprises supporting wallboards (1) on two sides, a substrate guide roller (2) and a coating roller (3) attached to the substrate guide roller (2), wherein the lower part of the coating roller (3) is immersed in coating feed liquid; the coating thickness and uniformity detection mechanism comprises a front low-level guide roller (5), a front detection box (6), two equal-level horizontal high-level guide rollers (7), a rear detection box (8) and a rear low-level guide roller (9), wherein the vertical heights of the front low-level guide roller (5) and the rear low-level guide roller (9) are smaller than or equal to the vertical height of the horizontal high-level guide roller (7), the front detection box (6) is covered above the first horizontal high-level guide roller (7), a laser transmitter (6-1), a reflection light receiver (6-2) and a controller are arranged in the front detection box (6), the controller is connected with a display and an alarm, and in addition, the second horizontal high-level guide roller (7), the rear detection box (8) and the rear low-level guide roller (9) are symmetrically arranged by taking the vertical line between the midpoints of the two equal-level high-level guide rollers (7) as symmetry axes; The coating surface defect recognition mechanism is arranged behind the coating thickness and uniformity detection mechanism and comprises a light source (10) and an image acquisition device (11), wherein the light source (10) is arranged between a second horizontal high-level guide roller (7) and a rear low-level guide roller (9) and is positioned below the hot stamping foil, and the light source (10) is arranged in parallel with the hot stamping foil; The image acquisition device (11) is arranged on the other side of the hot stamping foil opposite to the position of the light source (10), acquires images formed on the back surface of the hot stamping foil after the light source (10) irradiates, and is closely adjacent to the image acquisition device (11) and is provided with a defect detection unit which is directly connected with the image acquisition device.
2. The online detection device for coating quality of the hot stamping foil of the electrochemical aluminum according to claim 1 is characterized in that the rear ends of the front low-level guide roller (5) and the rear low-level guide roller (9) are arranged on a supporting wallboard (1) provided with a sliding groove (1-1), the heights of the front low-level guide roller (5) and the rear low-level guide roller (9) are adjusted through a lifting device connected with the rear ends of the front low-level guide roller and the rear low-level guide roller, so that the travelling angle of the hot stamping foil passing through the roller surfaces of the front low-level guide roller (5) and the rear low-level guide roller (9) is changed, the height of the front low-level guide roller (5) and the rear low-level guide roller (9) is flush with the horizontal high-level guide roller (7), and the angle adjustment range of the hot stamping foil is 0-60 degrees.
3. The online detection device for coating quality of the hot stamping foil of the electrochemical aluminum according to claim 1, wherein the light source (10) comprises a box body (10-1) and a light assembly (10-2), a transparent glass plate is arranged on the top surface of the box body (10-1), the light assembly (10-2) is arranged on the inner bottom of the box body (10-1) and comprises a plurality of LED lamp modules, the LED lamp modules are equidistantly arranged and are controlled by independent switches, and the switching and the brightness of the LED lamp modules are adjusted.

Description

On-line detection device for coating quality of hot stamping foil of electric aluminum Technical Field The utility model relates to the technical field of winding equipment, in particular to an online detection device for coating quality of an electric aluminum hot stamping foil. Background The electrochemical aluminum hot stamping foil is a composite material widely used in the fields of packaging, printing, decoration and the like, and has the core functions of transferring patterns, characters and the like onto the surface of a printing stock through a hot stamping process to realize a decoration or identification effect, wherein the coating quality is one of key factors for determining the performance of the electrochemical aluminum hot stamping foil, and directly influences the hot stamping effect such as definition, adhesive force, glossiness and the like and the service life. At present, many enterprises still rely on manual observation of defects such as bubbles and pinholes on the surface of a coating, and test scalding is adopted to verify adhesion and thermoprinting effects, the method is high in subjectivity and low in efficiency, microscopic defects cannot be detected, most detection modes are batch sampling, and production problems cannot be fed back in real time, and for detection of the thickness and uniformity of a layer of an electrochemical aluminum thermoprinting foil, many production enterprises still use a simple rear projection light source 10 to detect in combination with visual inspection, so that the requirements of high precision and online detection of a modern non-contact detection technology cannot be met. Disclosure of Invention In order to solve the problems in the background art, the application provides an online detection device for coating quality of an electrochemical aluminum stamping foil, which is used for detecting thickness uniformity, identifying surface defects, expanding tension and temperature monitoring three dimensions of a coating arranged before aluminum plating of the electrochemical aluminum stamping foil, and simultaneously combining multi-sensor data fusion and intelligent algorithm optimization to realize the upgrading from single index detection to full-flow quality control. In order to achieve the purpose, the application adopts the following technical scheme that the on-line detection device for the coating quality of the hot stamping foil of the electrochemical aluminum is arranged on a coating production line of the hot stamping foil of the electrochemical aluminum and is characterized by comprising a coating mechanism, a coating thickness and uniformity detection mechanism and a coating surface defect identification mechanism. The coating mechanism comprises supporting wallboards 1 on two sides, a substrate guide roller 2 and a coating roller 3 attached to the substrate guide roller 2, wherein the lower part of the coating roller 3 is immersed in coating feed liquid, a drying box 4 is arranged above the coating roller 3, and corresponding mechanisms for air flow adjustment and temperature control are arranged in the drying box. The dried hot stamping foil is led out of a drying box 4 and is sent to a coating thickness and uniformity detection mechanism, the mechanism sequentially comprises a front low-level guide roller 5, a front detection box 6, two equal-level horizontal high-level guide rollers 7, a rear detection box 8 and a rear low-level guide roller 9, wherein the height difference exists between the front low-level guide roller 5, the rear low-level guide roller 9 and the horizontal high-level guide roller 7, the pulled hot stamping foil is guided to be in an inclined state, the front detection box 6 is covered above the first horizontal high-level guide roller 7, a laser emitter 6-1, a reflection receiver 6-2 and a controller are arranged in the front detection box 6, the controller is connected with a display and an alarm, the thickness of the coating is calculated through measuring the distance difference between the upper surface and the lower surface of the coating, the detected coating thickness exceeds a specified range, the display and the alarm are carried out, in addition, the vertical line between the two equal-level high-level guide rollers 7 is used as a symmetrical axis, and the second horizontal high-level guide roller 7, the rear detection box 8 and the rear low-level guide roller 9 are symmetrically arranged. The coating surface defect recognition mechanism is arranged behind the coating thickness and uniformity detection mechanism and comprises a light source 10 and an image acquisition device 11, wherein the light source 10 is arranged between the second horizontal high-level guide roller 7 and the rear low-level guide roller 9 and is positioned below the hot stamping foil, and the light source 10 is arranged in parallel with the hot stamping foil to ensure that the irradiation angle of the light source covers the whole