Double-sided polishing mask detection machine

By employing a dual-sided lighting and imaging dual-sided acquisition mechanism and a suction mechanism, the problems of low accuracy and low efficiency in existing mask inspection machines have been solved, achieving highly efficient and automated detection and removal of defective masks.

CN224127937UActive Publication Date: 2026-04-17SHANGHAI GUIZHI TRADING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI GUIZHI TRADING CO LTD
Filing Date
2025-03-19
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing mask inspection machines use single-sided lighting and single-sided photography, resulting in low inspection accuracy and the need for manual removal of defective masks, leading to low work efficiency.

Method used

Design a double-sided light-emitting mask inspection machine, which uses a double-sided acquisition mechanism for double-sided light-emitting and double-sided shooting, and automatically removes defective masks through a suction mechanism.

Benefits of technology

It improves the accuracy and efficiency of detection, realizes automated removal of defective masks, and reduces manual intervention.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224127937U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of mask detection machines, in particular to a double-sided polishing mask detection machine which comprises a detection machine body, a dust cover is fixedly mounted at the top of the detection machine body, inlet and outlet holes are formed in the front side and the rear side of the bottom of the dust cover, and four fixed triangular blocks are fixedly connected to the top of the detection machine body. The four fixed triangular blocks are arranged in pairs and are distributed in a bilateral symmetry mode, a side edge plate is fixedly connected between the two fixed triangular blocks in the same group, and two rollers are rotationally connected between the two side edge plates in a front-back symmetry mode. According to the facial mask detection device, the mode of double-face lighting and double-face shooting collection is adopted, the accuracy of collected images is improved, meanwhile, the detection accuracy is improved, when a defective facial mask is detected, suction is conducted through the suction mechanism, the defective facial mask is sucked into the collection box to be collected, and automatic removal of the defective facial mask is achieved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of facial mask testing machines, specifically relating to a double-sided light-emitting facial mask testing machine. Background Technology

[0002] A mask testing machine is a device specifically designed to inspect the quality of mask products. These machines are typically used to check whether the mask sheets are intact, ensuring there are no tears or defects. They can also assess the ingredient content, uniformity, and other quality parameters of the mask. In addition, they can help identify foreign objects or contaminants on the mask, ensuring that the product meets hygiene and safety standards.

[0003] Existing mask inspection machines typically use single-sided lighting and single-sided imaging during mask inspection. Single-sided imaging is prone to large errors, reducing the accuracy of the inspection. In addition, when a defective mask is detected, it needs to be manually removed, resulting in low work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a double-sided light-emitting mask inspection machine with a simple structure and reasonable design in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A double-sided light-emitting mask testing machine includes a testing machine body. A dust cover is fixedly installed on the top of the testing machine body, and inlet and outlet holes are opened on both the front and rear sides of the bottom of the dust cover. Four fixed triangular blocks are fixedly connected to the top of the testing machine body. The four fixed triangular blocks are arranged in pairs and are symmetrically distributed from left to right. A side plate is fixedly connected between the two fixed triangular blocks in the same group. Two rollers are symmetrically connected to the two side plates and are rotatably connected from front to back. A transparent conveyor belt is installed between the two rollers. A double-sided collection mechanism is provided on the side plates and the dust cover. A suction mechanism is provided at the bottom rear side of the testing machine body.

[0007] The suction mechanism includes a fixed box fixedly connected to the bottom rear side of the main body of the testing machine, and an air pump is fixedly installed on the bottom left side of the fixed box. Two slide rails are fixedly connected symmetrically on the bottom surface inside the fixed box, and a collection box is fixedly connected to the top of the two slide rails through a slider. A suction pipe is fixedly inserted through the center of the top of the fixed box, and a fixed ring is fixedly sleeved in the middle of the suction pipe. A fixed arm is fixedly connected to the outside of the fixed ring. The fixed arm is fixedly installed on the right side of the dust cover. A suction cover is fixedly connected to the end of the suction pipe away from the fixed box. A box door is provided on the rear side of the fixed box.

[0008] Preferably, the four corners of the bottom of the main body of the testing machine are fixedly connected with anchor bolts, and the front and left sides of the main body of the testing machine are provided with maintenance doors. An alarm light is fixedly connected to the top corner of the dust cover, and an observation window is provided on the front side of the dust cover.

[0009] Preferably, a servo motor is fixedly connected to the side plate on the right side, and the output end of the servo motor rotates through the side plate and is fixedly connected to the center of the right side of the roller.

[0010] Preferably, the double-sided collection mechanism includes a top collection component and a bottom collection component. The top collection component is disposed inside the dust cover, and the bottom collection component is disposed between the two side plates and located inside the transparent conveyor belt.

[0011] Preferably, the top acquisition component includes a fixing plate fixedly connected to the inner wall of the dust cover, a cylinder fixedly connected to the bottom of the fixing plate, a No. 1 mounting plate fixedly connected to the output end of the cylinder, and a number of No. 1 mounting blocks fixedly connected symmetrically at the bottom of the No. 1 mounting plate, and a No. 1 LED light fixedly connected to the bottom of two No. 1 mounting blocks symmetrically connected at the bottom.

[0012] Preferably, a No. 1 connecting plate is fixedly connected to the middle of the front side of the No. 1 mounting plate, and a No. 1 acquisition camera is fixedly connected to the bottom of the No. 1 connecting plate.

[0013] Preferably, the bottom acquisition component includes a second mounting plate fixedly connected between two side plates. Several second mounting blocks are fixedly connected symmetrically to the top of the second mounting plate. A second LED light is fixedly connected to the top of two symmetrical second mounting blocks. A second connecting plate is fixedly connected to the middle of the front side of the second mounting plate. A second acquisition camera is fixedly installed on the top of the second connecting plate.

[0014] The beneficial effects of this utility model are as follows: By setting the top and bottom acquisition components in the double-sided acquisition mechanism, and adopting double-sided lighting and double-sided shooting acquisition, the accuracy of the acquired images is improved, and the accuracy of subsequent detection is also improved. When a defective mask is detected, it is sucked in by the suction mechanism and collected in the collection box, thus realizing the removal of defective masks without manual screening and with high work efficiency. Attached Figure Description

[0015] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a first-view schematic diagram of a partial cross-section of the overall structure of this utility model;

[0018] Figure 4 This is the utility model Figure 3 Enlarged view of region A in the middle;

[0019] Figure 5 This is a partial cross-sectional view of the overall structure of this utility model from a second perspective.

[0020] In the diagram: 1. Main body of the testing machine; 2. Anchor bolts; 3. Suction mechanism; 31. Fixing box; 32. Fixing ring; 33. Fixing arm; 34. Suction pipe; 35. Suction hood; 36. Air pump; 37. Slide rail; 38. Collection box; 4. Alarm light; 5. Dust cover; 6. Side plate; 7. Transparent conveyor belt; 8. Servo motor; 9. Double-sided acquisition mechanism; 91. Top acquisition component; 911. Mounting block 1; 912. Mounting plate 1; 913. Cylinder; 914. Fixing plate; 915. LED light 1; 916. Connecting plate 1; 917. Camera 1; 92. Bottom acquisition component; 921. LED light 2; 922. Mounting plate 2; 923. Mounting block 2; 924. Connecting plate 2; 925. Camera 2; 10. Roller; 11. Fixing triangular block. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example

[0023] Please see Figure 1 and Figure 3 A double-sided light-emitting mask testing machine includes a testing machine body 1. A dust cover 5 is fixedly installed on the top of the testing machine body 1, and the dust cover 5 has inlet and outlet holes on both the front and rear sides of the bottom. Four fixed triangular blocks 11 are fixedly connected to the top of the testing machine body 1. The four fixed triangular blocks 11 are arranged in pairs and are symmetrically distributed from left to right. A side plate 6 is fixedly connected between the two fixed triangular blocks 11 in the same group. Two rollers 10 are symmetrically rotatably connected between the two side plates 6. A transparent conveyor belt 7 is installed between the two rollers 10. A double-sided collection mechanism 9 is provided on the side plates 6 and the dust cover 5. A suction mechanism 3 is provided at the bottom rear side of the testing machine body 1.

[0024] In use, the transparent conveyor belt 7 is used to transport the face mask, the double-sided collection mechanism 9 is used for double-sided lighting and double-sided shooting detection, and the suction mechanism 3 is used to remove the unqualified face mask by suction.

[0025] Please see Figure 1 and Figure 3 Anchor bolts 2 are fixedly connected to the four corners of the bottom of the main body 1 of the testing machine. Inspection doors are provided on the front and left sides of the main body 1 of the testing machine. An alarm light 4 is fixedly connected to the top corner of the dust cover 5. An observation window is provided on the front side of the dust cover 5. A servo motor 8 is fixedly connected to the side plate 6 on the right side. The output end of the servo motor 8 rotates through the side plate 6 and is fixedly connected to the center of the right side of the roller 10.

[0026] Anchor bolts 2 are used to adjust the overall height of the equipment. Inspection doors are used to inspect the interior of the main body 1 of the testing machine. Alarm lights 4 are used to alarm for faults. When the servo motor 8 starts, it synchronously drives the roller 10 located on the front to rotate, and at the same time drives the transparent conveyor belt 7 to rotate, realizing the conveying of the mask along the transparent conveyor belt 7 from front to back. The transparent conveyor belt 7 itself is transparent, which is convenient for bottom lighting and shooting.

[0027] Please see Figure 3 and Figure 4 The double-sided acquisition mechanism 9 includes a top acquisition component 91 and a bottom acquisition component 92. The top acquisition component 91 is located inside the dust cover 5, and the bottom acquisition component 92 is located between two side plates 6 and inside the transparent conveyor belt 7. The top acquisition component 91 includes a fixing plate 914 fixedly connected to the inner wall of the dust cover 5. A cylinder 913 is fixedly connected to the bottom of the fixing plate 914. A first mounting plate 912 is fixedly connected to the output end of the cylinder 913. Several first mounting blocks 911 are fixedly connected symmetrically at the bottom of the first mounting plate 912. A first LED light 915 is fixedly connected to the bottom of two symmetrical first mounting blocks 911. A first connecting plate 916 is fixedly connected to the middle of the front side of the first mounting plate 912. A first acquisition camera 917 is fixedly connected to the bottom of the first connecting plate 916.

[0028] Please see Figure 3 and Figure 4 The bottom acquisition component 92 includes a second mounting plate 922 fixedly connected between two side plates 6. Several second mounting blocks 923 are fixedly connected symmetrically at the top of the second mounting plate 922. The top of the two symmetrical second mounting blocks 923 are fixedly connected together to a second LED light 921. A second connecting plate 924 is fixedly connected to the middle of the front side of the second mounting plate 922. A second acquisition camera 925 is fixedly installed on the top of the second connecting plate 924.

[0029] As the masks to be inspected are conveyed along the transparent conveyor belt 7, LED light 921 (number two) and LED light 915 (number one) are turned on. LED light 921 and LED light 915 provide bottom and top lighting respectively, achieving double-sided lighting and improving the lighting effect. Simultaneously, cameras 917 (number one) and 925 (number two) are used to photograph the masks, achieving double-sided imaging. Combined with double-sided lighting, this improves the clarity of the photographs, allowing for clearer capture of dirt and blemishes on the masks, thus enhancing the accuracy of subsequent inspections. The photographs are transmitted to the visual inspection system, where AI algorithms are used for visual inspection. Qualified products are transferred to the next process, while unqualified products are rejected using the suction mechanism 3.

[0030] Please see Figure 2 , Figure 3 and Figure 5 The suction mechanism 3 includes a fixed box 31 fixedly connected to the bottom rear side of the main body 1 of the testing machine. A suction pump 36 is fixedly installed on the bottom left side of the fixed box 31. Two slide rails 37 are fixedly connected symmetrically to the bottom surface inside the fixed box 31. A collection box 38 is fixedly connected to the top of the two slide rails 37 through a slider. A suction pipe 34 is fixedly inserted through the center of the top of the fixed box 31. A fixing ring 32 is fixedly sleeved in the middle of the suction pipe 34. A fixing arm 33 is fixedly connected to the outside of the fixing ring 32. The fixing arm 33 is fixedly installed on the right side of the dust cover 5. A suction cover 35 is fixedly connected to the end of the suction pipe 34 away from the fixed box 31. A door is provided on the rear side of the fixed box 31. A sealing ring is provided between the door and the fixed box 31.

[0031] When a face mask is found to be substandard, the vacuum pump 36 is activated. The vacuum pump 36 begins to draw air, sucking the substandard face mask through the suction hood 35 into the suction tube 34. Then, it enters the fixed box 31 through the suction tube 34 and falls into the collection box 38. This achieves automatic removal and collection of substandard face masks without the need for manual removal, which is highly efficient. Furthermore, the removed face masks are located inside the collection box 38, making them easy to retrieve and process.

[0032] It should be noted that this double-sided illuminated mask inspection machine, when in use, first starts the servo motor 8, and the output of the servo motor 8 synchronously drives the roller 10 and the transparent conveyor belt 7 to rotate, realizing the automatic conveying of the mask from front to back. During conveying, the double-sided acquisition mechanism 9 is used to perform double-sided illumination and double-sided shooting, which makes it easier to clearly capture dirt and blemishes on the mask. Compared with single-sided illumination and single-sided shooting, it is clearer and more accurate. The captured photos are transmitted to the visual inspection system, and visual inspection is performed using AI algorithms. Qualified products are conveyed to the next process, and unqualified products are rejected by the suction mechanism 3. No manual rejection is required, resulting in high work efficiency.

[0033] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A double-sided lighted surface film inspection machine comprising an inspection machine body (1), characterized in that: The top of the main body (1) of the testing machine is fixedly equipped with a dust cover (5), and the dust cover (5) has inlet and outlet holes on both the front and rear sides of the bottom. The top of the main body (1) of the testing machine is fixedly connected with four fixed triangular blocks (11). The four fixed triangular blocks (11) are arranged in pairs and are symmetrically distributed on the left and right. The two fixed triangular blocks (11) in the same group are fixedly connected with side plates (6). The two side plates (6) are symmetrically connected to two rollers (10) in a rotatable manner. The two rollers (10) are installed together with a transparent conveyor belt (7). The side plates (6) and the dust cover (5) are both equipped with a double-sided collection mechanism (9). The bottom of the rear side of the main body (1) of the testing machine is equipped with a suction mechanism (3). The suction mechanism (3) includes a fixed box (31) fixedly connected to the bottom rear side of the main body (1) of the detection machine. A suction pump (36) is fixedly installed on the bottom left side of the fixed box (31). Two slide rails (37) are fixedly connected symmetrically on the bottom surface inside the fixed box (31). A collection box (38) is fixedly connected to the top of the two slide rails (37) through a slider. A suction pipe (34) is fixedly inserted through the center of the top of the fixed box (31). A fixing ring (32) is fixedly sleeved in the middle of the suction pipe (34). A fixing arm (33) is fixedly connected to the outside of the fixing ring (32). The fixing arm (33) is fixedly installed on the right side of the dust cover (5). A suction cover (35) is fixedly connected to the end of the suction pipe (34) away from the fixed box (31). A box door is provided on the rear side of the fixed box (31).

2. The double-sided lighted surface film inspection machine of claim 1, wherein: The bottom four corners of the main body (1) of the testing machine are fixedly connected with anchor bolts (2), and the front and left sides of the main body (1) of the testing machine are provided with maintenance doors. The top corners of the dust cover (5) are fixedly connected with alarm lights (4), and the front side of the dust cover (5) is provided with an observation window.

3. The double-sided light-emitting mask inspection machine according to claim 1, characterized in that: A servo motor (8) is fixedly connected to the side plate (6) located on the right side. The output end of the servo motor (8) rotates through the side plate (6) and is fixedly connected to the center of the right side of the roller (10).

4. The double-sided lighted surface film inspection machine of claim 1, wherein: The double-sided collection mechanism (9) includes a top collection component (91) and a bottom collection component (92). The top collection component (91) is located inside the dust cover (5), and the bottom collection component (92) is located between two side plates (6) and inside the transparent conveyor belt (7).

5. The double-sided lighted surface film inspection machine of claim 4, wherein: The top acquisition component (91) includes a fixing plate (914) fixedly connected to the inner wall of the dust cover (5). A cylinder (913) is fixedly connected to the bottom of the fixing plate (914). A first mounting plate (912) is fixedly connected to the output end of the cylinder (913). Several first mounting blocks (911) are fixedly connected to the bottom of the first mounting plate (912) symmetrically. The bottom of two first mounting blocks (911) symmetrically connected to the bottom of the first mounting plate (912) is fixedly connected to a first LED light (915).

6. The double-sided lighted surface film inspection machine of claim 5, wherein: A connecting plate (916) is fixedly connected to the middle of the front side of the first mounting plate (912), and a data acquisition camera (917) is fixedly connected to the bottom of the first connecting plate (916).

7. The double-sided lighted surface film inspection machine of claim 4, wherein: The bottom acquisition component (92) includes a second mounting plate (922) fixedly connected between two side plates (6). Several second mounting blocks (923) are fixedly connected symmetrically at the top of the second mounting plate (922). The top of the two second mounting blocks (923) that are symmetrically connected together are fixedly connected to a second LED light (921). A second connecting plate (924) is fixedly connected to the middle of the front side of the second mounting plate (922). A second acquisition camera (925) is fixedly installed on the top of the second connecting plate (924).