Aluminum foil pinhole detection device and detection method based on high-speed laser

Abstract

The invention discloses an aluminum foil pinhole detection device and method based on high-speed laser. The aluminum foil pinhole detection device comprises a high-precision laser, a radar sensor and a microlens array, wherein the high-precision laser and the radar sensor are distributed at intervals, and the microlens array is arranged between the high-precision laser and the radar sensor. The adjusting part is used for adjusting the positions of the high-precision laser and the radar sensor and comprises a fixed seat, an adjusting groove formed in the fixed seat, a plurality of threaded openings symmetrically formed in the side surface of the fixed seat and two connecting seats inserted into the adjusting groove and sliding in the adjusting groove, and fastening plates are arranged on the front surfaces of the two connecting seats; the beneficial effects of the invention are that light emitted by a traditional light source is propagated along all directions, the divergence angle is large, aluminum foils with different thicknesses and pinholes with the same size can be caused, and the detected hole areas have great differences; the divergence angle of the laser light source is very small, the laser light source is almost emitted along the parallel direction, and the detected hole areas of aluminum foils with different thicknesses and pinholes with the same size are consistent.

Description

Technical Field

[0001] The invention belongs to the technical field of aluminum foil pinhole detection, and in particular relates to an aluminum foil pinhole detection device and a detection method based on high-speed laser. Background Art

[0002] In the actual production process of aluminum foil, due to the influence of various factors, tiny pinholes of sizes such as 5um and 10um will appear on the surface of the aluminum foil, which seriously affects the quality of the aluminum foil and brings unnecessary losses to the manufacturers.

[0003] The existing aluminum foil pinhole detection device has the following problems during detection:

[0004] Since the light emitted by the traditional light source propagates in all directions, the divergence angle is large, which will cause the detected hole areas to be very different for the pinholes of the same size and different thicknesses of aluminum foil;

[0005] It is easily affected by external interference, which affects the accuracy of detection and increases the cost of maintenance;

[0006] The height cannot be adjusted after installation, which affects the convenience of use. Summary of the invention

[0007] The purpose of the present invention is to provide an aluminum foil pinhole detection device and detection method based on high-speed laser, which can reduce interference, improve detection accuracy, have the characteristics of low maintenance cost, can achieve high degree of adjustment, and increase convenience of use.

[0008] To achieve the above object, the present invention provides the following technical solution: an aluminum foil pinhole detection device based on high-speed laser, comprising:

[0009] High-precision lasers and radar sensors are distributed at intervals, and microlens arrays are arranged between the high-precision lasers and radar sensors;

[0010] An adjusting component for adjusting the position of a high-precision laser and a radar sensor, the adjusting component comprising a fixing seat, an adjusting groove provided on the fixing seat, a plurality of threaded openings symmetrically arranged on the side surface of the fixing seat, two connecting seats inserted into and sliding in the adjusting groove, a fastening plate being arranged on the front surfaces of the two connecting seats, one fastening plate being fixedly connected to the high-precision laser, and the other fastening plate being fixedly connected to the radar sensor, a plurality of threaded columns being arranged on the fixing seat, and two symmetrically arranged threaded columns being abutted against the connecting seat.

[0011] As a preferred technical solution of the present invention, the connecting seat is a "T"-shaped structure, and symmetrically distributed screw holes are opened inside the fastening plate.

[0012] As a preferred technical solution of the present invention, it also includes a base, and the base is a rectangular parallelepiped structure.

[0013] As a preferred technical solution of the present invention, the side surface of the fixing seat is provided with symmetrically distributed fastening ears, and the fastening ears are fixedly connected to the base.

[0014] As a preferred technical solution of the present invention, a maintenance plate is hinged on the side surface of the high-precision laser, and a vertical sheet is installed on the side surface of the high-precision laser, and reinforcement components are arranged on the maintenance plate and the vertical sheet.

[0015] As a preferred technical solution of the present invention, the reinforcing component includes a slot opened on the maintenance plate, a through hole opened inside the vertical piece, and an insertion rod that penetrates the through hole and can be inserted into the slot.

[0016] As a preferred technical solution of the present invention, the outer side surface of the insertion rod is provided with symmetrically distributed extension blocks, and the extension blocks are provided with springs connected to the vertical sheets.

[0017] The present invention also discloses a detection method of an aluminum foil pinhole detection device based on a high-speed laser, comprising the following steps:

[0018] The position of the high-precision laser and radar sensor is adjusted by sliding the connecting seat in the adjusting groove. After adjustment, the threaded column is rotated to abut against the connecting seat to fix the adjusted high-precision laser and radar sensor.

[0019] The laser is emitted by a high-precision laser, and after passing through the microlens array, a parallel beam with high collimation is formed, which fully covers the surface of the aluminum foil to achieve comprehensive detection of the aluminum foil;

[0020] When a pinhole appears on the surface of the aluminum foil, the parallel laser passes through the foil and converges on the radar sensor through the microlens;

[0021] After receiving the laser, the radar sensor quickly generates a current signal, which is then processed by the amplification circuit and analog-to-digital conversion circuit and transmitted to the computer;

[0022] The computer compares the size of the received signal with the standard signal size, and analyzes and records it in the database.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The light emitted by the traditional light source propagates in all directions, and the divergence angle is large, which will cause the detected hole areas of aluminum foils of different thicknesses and pinholes of the same size to be very different; the divergence angle of the laser light source is very small, and it is emitted almost in parallel directions. The detected hole areas of aluminum foils of different thicknesses and pinholes of the same size are consistent;

[0025] When a pinhole appears on the surface of the aluminum foil, parallel lasers pass through the aluminum foil and converge on the radar sensor through the microlens; after receiving the laser, the radar sensor quickly generates a current signal, which is then processed by the amplification circuit and analog-to-digital conversion circuit and transmitted to the computer; the computer compares the size of the received signal with the standard signal size, and analyzes and records it in the database; it can reduce interference, improve detection accuracy, and has the characteristics of low maintenance cost;

[0026] The designed adjustment components can drive the high-precision laser and radar sensors to adjust, further increasing the convenience of use;

[0027] The design of reinforced components increases the convenience of maintaining high-precision lasers. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure of the H region;

[0030] Figure 3 It is a schematic diagram of the structure of the adjustment component of the present invention from a top view;

[0031] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a high-precision laser of the present invention from a side view;

[0032] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of the F region;

[0033] In the figure: 1. high-precision laser; 2. radar sensor; 3. microlens array; 4. maintenance plate; 41. slot; 5. base; 6. fixing seat; 61. adjustment slot; 62. fastening ear; 63. threaded mouth; 7. connecting seat; 71. fastening plate; 8. threaded column; 91. vertical piece; 92. spring; 93. plug rod; 94. extension block. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figure 1-Figure 5 , which is the first embodiment of the present invention, and provides an aluminum foil pinhole detection device based on high-speed laser, comprising:

[0037] The high-precision laser 1 and the radar sensor 2 are arranged at intervals, and the microlens array 3 is arranged between the high-precision laser 1 and the radar sensor 2. The laser is emitted by the high-precision laser 1, and after passing through the microlens array 3, a parallel beam with high collimation is formed, which is fully covered on the surface of the aluminum foil to achieve comprehensive detection of the aluminum foil; after receiving the laser, the radar sensor 2 quickly generates a current signal, and then processes the signal through an amplification circuit and an analog-to-digital conversion circuit, and transmits it to a computer;

[0038] The adjusting component for adjusting the position of the high-precision laser 1 and the radar sensor 2 includes a fixing seat 6, which realizes the addition of the fixing seat 6, an adjusting slot 61 provided on the fixing seat 6, which realizes the opening of the adjusting slot 61, a plurality of threaded openings 63 symmetrically provided on the side surface of the fixing seat 6, which realizes the addition of the threaded openings 63, two connecting seats 7 inserted into the adjusting slot 61 and sliding in the adjusting slot 61, the connecting seats 7 move up and down along the adjusting slot 61, thereby adjusting the position of the connecting seats 7, and the front surfaces of the two connecting seats 7 are both provided with fastening plates 71, which realizes the addition of the fastening plates 71, and a fastening plate Plate 71 is fixedly connected to the high-precision laser 1, and another fastening plate 71 is fixedly connected to the radar sensor 2. When the position of the connecting seat 7 is adjusted, the high-precision laser 1 and the radar sensor 2 are driven to be adjusted through the fastening plate 71, so as to further increase the convenience of use. A plurality of threaded columns 8 are arranged on the fixed seat 6, so as to realize the addition of the threaded columns 8. The two symmetrically arranged threaded columns 8 abut against the connecting seat 7. After the height of the high-precision laser 1 and the radar sensor 2 is adjusted, the four threaded columns 8 are rotated, and the two symmetrical threaded columns 8 abut against the connecting seat 7, so as to stabilize the adjusted connecting seat 7.

[0039] In this embodiment, preferably, the connecting seat 7 is a "T"-shaped structure, and symmetrically distributed screw holes are opened inside the fastening plate 71 to facilitate fixing the fastening plate 71 to the high-precision laser 1 and the radar sensor 2 by passing screws through the screw holes.

[0040] In the present embodiment, preferably, a base 5 is further included, and the base 5 is a rectangular parallelepiped structure, thereby realizing the addition of the base 5 .

[0041] In this embodiment, preferably, the side surface of the fixing seat 6 is provided with symmetrically distributed fastening ears 62, so that the fastening ears 62 are added, and the fastening ears 62 and the base 5 are connected by bolts, and the fastening ears 62 and the base 5 are firmly spliced ​​to achieve a firm installation of the fixing seat 6.

[0042] In the present embodiment, preferably, a maintenance plate 4 is hingedly connected to the side surface of the high-precision laser 1, and the maintenance plate 4 can be opened to increase the convenience of maintaining the high-precision laser 1, and a vertical piece 91 is installed on the side surface of the high-precision laser 1, realizing the addition of the vertical piece 91, and reinforcing components are arranged on the maintenance plate 4 and the vertical piece 91, and the reinforcing components include a slot 41 opened on the maintenance plate 4, realizing the opening of the slot 41, a through hole opened inside the vertical piece 91, realizing the opening of the through hole, and a rod 93 that passes through the through hole and can be inserted into the slot 41. When the rod 93 is inserted into the slot 41, the maintenance plate 4 is firmly closed, and when the rod 93 is detached from the slot 41, the maintenance plate 4 can be opened.

[0043] In this embodiment, preferably, the outer side surface of the insertion rod 93 is provided with symmetrically distributed extension blocks 94, so that the extension blocks 94 are added, and the extension blocks 94 are provided with springs 92 connected to the vertical pieces 91. Through the cooperation between the spring 92 and the extension blocks 94, when the insertion rod 93 is pulled to move, the insertion rod 93 can be released to quickly reset.

[0044] Example 2

[0045] See also Figure 1-Figure 5 , which is the second embodiment of the present invention, provides a detection method of an aluminum foil pinhole detection device based on a high-speed laser, comprising the following steps:

[0046] The positions of the high-precision laser 1 and the radar sensor 2 are adjusted by sliding the connecting seat 7 in the adjusting groove 61. After the adjustment, the threaded column 8 is rotated to abut against the connecting seat 7 to fix the adjusted high-precision laser 1 and the radar sensor 2.

[0047] The laser is emitted by a high-precision laser 1, and after passing through the microlens array 3, a parallel beam with high collimation is formed, which is fully covered on the surface of the aluminum foil to achieve comprehensive detection of the aluminum foil;

[0048] When a pinhole appears on the surface of the aluminum foil, the parallel laser passes through the aluminum foil and converges on the radar sensor 2 through the microlens;

[0049] After receiving the laser, the radar sensor 2 quickly generates a current signal, which is then processed by an amplifier circuit and an analog-to-digital conversion circuit and transmitted to a computer;

[0050] The computer compares the size of the received signal with the standard signal size, and analyzes and records it in the database.

[0051] The light emitted by traditional light sources propagates in all directions with a large divergence angle, which will result in large differences in the detected hole areas for pinholes of the same size and different thicknesses of aluminum foil;

[0052] The divergence angle of the laser light source is very small, and it is emitted almost in a parallel direction. For aluminum foils of different thicknesses and pinholes of the same size, the detected hole area is consistent.

[0053] Although the embodiments of the present invention have been shown and described, as detailed above, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-speed laser-based aluminum foil pinhole detection device, characterized in that: include High-precision lasers (1) and radar sensors (2) that are distributed at intervals, and a microlens array (3) disposed between the high-precision lasers (1) and the radar sensors (2); An adjustment component for adjusting the position of a high-precision laser (1) and a radar sensor (2), the adjustment component comprising a fixing seat (6), an adjustment slot (61) provided on the fixing seat (6), a plurality of threaded openings (63) symmetrically arranged on the side surface of the fixing seat (6), two connecting seats (7) inserted into the adjustment slot (61) and sliding in the adjustment slot (61), the front surfaces of the two connecting seats (7) are both provided with a fastening plate (71), one fastening plate (71) is fixedly connected to the high-precision laser (1), and the other fastening plate (71) is fixedly connected to the radar sensor (2), and a plurality of threaded columns (8) are arranged on the fixing seat (6), and two symmetrically arranged threaded columns (8) abut against the connecting seat (7).

2. The aluminum foil pinhole detection device based on high-speed laser according to claim 1, characterized in that: The connecting seat (7) is a "T"-shaped structure, and the interior of the fastening plate (71) is provided with symmetrically distributed screw holes.

3. The aluminum foil pinhole detection device based on high-speed laser according to claim 1, characterized in that: It also includes a base (5), and the base (5) is a rectangular parallelepiped structure.

4. The aluminum foil pinhole detection device based on high-speed laser according to claim 3 is characterized in that: The side surface of the fixing seat (6) is provided with symmetrically distributed fastening ears (62), and the fastening ears (62) and the base (5) are fixedly connected.

5. The aluminum foil pinhole detection device based on high-speed laser according to claim 1, characterized in that: A maintenance plate (4) is hingedly connected to the side surface of the high-precision laser (1), and a vertical sheet (91) is installed on the side surface of the high-precision laser (1), and reinforcement components are arranged on the maintenance plate (4) and the vertical sheet (91).

6. The aluminum foil pinhole detection device based on high-speed laser according to claim 5, characterized in that: The reinforcing component comprises a slot (41) formed on the maintenance plate (4), a through hole formed inside the vertical plate (91), and an insertion rod (93) penetrating through the through hole and capable of being inserted into the slot (41).

7. The aluminum foil pinhole detection device based on high-speed laser according to claim 6, characterized in that: The outer side surface of the insertion rod (93) is provided with symmetrically distributed extension blocks (94), and the extension blocks (94) are provided with springs (92) connected to the vertical sheets (91).

8. The detection method of the aluminum foil pinhole detection device based on high-speed laser according to any one of claims 1 to 7, characterized in that: The steps include: The positions of the high-precision laser (1) and the radar sensor (2) are adjusted by sliding the connecting seat (7) in the adjusting groove (61); after the adjustment, the threaded column (8) is rotated to abut against the connecting seat (7) to fix the adjusted high-precision laser (1) and the radar sensor (2); Laser light is emitted by a high-precision laser (1) and passes through a microlens array (3) to form a parallel light beam with high collimation, which is fully covered on the surface of the aluminum foil, thereby achieving comprehensive detection of the aluminum foil; When a pinhole appears on the surface of the aluminum foil, the parallel laser light passes through the aluminum foil and converges on the radar sensor (2) through the microlens; After receiving the laser light, the radar sensor (2) quickly generates a current signal, which is then processed by an amplification circuit and an analog-to-digital conversion circuit and transmitted to a computer; The computer compares the size of the received signal with the standard signal size, and analyzes and records it in the database.

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