Dust-free paper surface defect inspection device

By utilizing the synergistic effect of the horizontal linear module, the vertical linear module, and the rotary cylinder, the surface defect inspection device for cleanroom paper achieves efficient and accurate detection and marking, solving the problem of low efficiency in traditional inspection methods.

CN223784213UActive Publication Date: 2026-01-09DONGGUAN BAIJIE ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202423230363.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2026-01-09
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

Existing methods for detecting surface defects in cleanroom paper are inefficient, prone to missing detections, and fail to meet the high-precision requirements of large-scale production.

Method used

The dust-free paper surface defect inspection device adopts the coordinated action of horizontal linear modules, vertical linear modules and rotary cylinders to realize the flexible movement of inspection components in three-dimensional space. Combined with the rapid switching between inkjet printer and industrial camera, it realizes the integration of detection and marking.

Benefits of technology

This improved detection accuracy and work efficiency, ensuring comprehensive coverage and precise inspection of the cleanroom paper surface.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223784213U_ABST
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Abstract

The utility model relates to a dust-free paper surface defect inspection device, which comprises a conveying assembly, a detection assembly and a detection assembly, the inspection platform is used for bearing dust-free paper; the inspection assembly is mounted above the conveying assembly; the inspection assembly comprises a portal frame, a transverse linear module, a vertical linear module, a rotating air cylinder, a supporting base, a code spraying device, a support, an industrial camera and rolling wheels. The rollers are located on the two opposite sides of the industrial camera and used for abutting against dust-free paper. The supporting seat is arranged in an isosceles right triangle shape. The dust-free paper surface defect inspection device is simple in structure and convenient to use, through the synergistic effect of the transverse linear module, the vertical linear module and the rotating air cylinder, flexible movement of the inspection assembly in a three-dimensional space and rapid switching of the code spraying device and the industrial camera are achieved, the operation process is simplified, integration of detection and marking is achieved, and the detection efficiency is improved. The inspection precision is ensured, and the working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of cleanroom paper production technology, and in particular to a device for inspecting surface defects in cleanroom paper. Background Technology

[0002] Cleanroom wipes are a high-performance nonwoven material made primarily from wood pulp fibers using advanced airflow web-forming technology. They possess excellent absorbency and water retention, while exhibiting low dust and low ion residue, leaving no particles or lint after wiping. Therefore, they are widely used in electronics, optics, and medical fields for wiping and cleaning various precision components and equipment.

[0003] After cleanroom paper is slit, its surface may develop defects such as scratches, tears, and stains due to cutting and handling processes. These defects not only affect the appearance of the cleanroom paper but may also affect its performance. Therefore, in traditional production, inspectors rely on the naked eye or a magnifying glass to observe the surface of the cleanroom paper to detect and record defects. However, this method is inefficient, prone to missing defects, and lacks standardized criteria, making it difficult to meet the high-precision inspection requirements of large-scale production. Utility Model Content

[0004] Based on this, the present invention provides a dust-free paper surface defect inspection device with simple structure and convenient use. Through the coordinated action of the horizontal linear module, the vertical linear module and the rotary cylinder, the inspection components can move flexibly in three-dimensional space and the inkjet printer and industrial camera can be quickly switched, simplifying the operation process, realizing the integration of detection and marking, ensuring inspection accuracy and improving work efficiency.

[0005] To achieve the objectives of this utility model, the following technical solution is adopted:

[0006] A device for inspecting surface defects of cleanroom paper, comprising:

[0007] The conveying assembly includes a frame and an inspection platform mounted on top of the frame; the inspection platform is used to support the cleanroom paper; and

[0008] An inspection assembly is installed above the conveying assembly. The inspection assembly includes a gantry mounted above the inspection platform, a horizontal linear module mounted on the top side of the gantry, a vertical linear module connected to the horizontal linear module, a rotary cylinder mounted on one side of the bottom of the vertical linear module, a support base for the rotor connected to the rotary cylinder, an inkjet printer mounted on one side of the support base, a bracket mounted on the other side of the support base, an industrial camera mounted on the end of the bracket away from the support base, and rollers mounted on opposite sides of the bracket away from the support base. The rollers are located on opposite sides of the industrial camera and are used to abut against the dust-free paper. The support base is arranged in an isosceles right-angled triangle and has two mounting surfaces set at 90 degrees. One mounting surface is used to support the inkjet printer, and the other mounting surface is used to support the bracket.

[0009] The aforementioned dust-free paper surface defect inspection device has a simple structure and is easy to use. Through the coordinated action of the horizontal linear module, the vertical linear module and the rotary cylinder, it realizes the flexible movement of the inspection components in three-dimensional space and the rapid switching between the inkjet printer and the industrial camera, which simplifies the operation process, realizes the integration of detection and marking, ensures inspection accuracy and improves work efficiency.

[0010] In one embodiment, the axis of the rotary cylinder is set at a 45-degree angle to the vertical direction.

[0011] In one embodiment, the conveying assembly further includes a first feed roller and a second feed roller rotatably mounted on opposite sides of the inspection platform, an active roller rotatably mounted at the outlet end of the frame, a driven roller rotatably mounted below the active roller, and a conveying motor coaxially connected to one end of the active roller; the conveying motor is used to drive the active roller to rotate, and the active roller and the driven roller are used to clamp the dust-free paper.

[0012] In one embodiment, a space is provided between the first feed roller and the second feed roller for the cleanroom paper to pass through; the cleanroom paper is located above the first feed roller and below the second feed roller.

[0013] In one embodiment, the inkjet printer is a laser inkjet printer. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a dust-free paper surface defect inspection device according to an embodiment of the present invention.

[0015] Figure 2 for Figure 1 An enlarged view of circle A shown;

[0016] Figure 3 for Figure 1 A three-dimensional schematic diagram of the dust-free paper surface defect inspection device from another perspective;

[0017] Figure 4 for Figure 3 An enlarged schematic diagram of circle B shown.

[0018] Attached image annotations:

[0019] 10-Conveying assembly, 11-Frame, 12-Inspection platform, 13-First feed roller, 14-Second feed roller, 15-Drive roller, 16-Driven roller, 17-Conveying motor, 18-Dust-free paper;

[0020] 20-Inspection component, 21-Gantry, 22-Horizontal linear module, 23-Vertical linear module, 24-Rotary cylinder, 25-Support base, 26-Inkjet printer, 27-Bracket, 28-Industrial camera, 29-Roller. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0022] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0024] Please see Figures 1 to 4 This invention provides a dust-free paper surface defect inspection device according to one embodiment of the present invention, which includes a conveying component 10 and an inspection component 20 installed above the conveying component 10.

[0025] The conveying assembly 10 includes a frame 11, an inspection platform 12 mounted on the top of the frame 11, a first feed roller 13 and a second feed roller 14 rotatably mounted on opposite sides of the inspection platform 12, a drive roller 15 rotatably mounted at the outlet end of the frame 11, a driven roller 16 rotatably mounted below the drive roller 15, and a conveying motor 17 coaxially connected to one end of the drive roller 15. The conveying motor 17 is used to drive the drive roller 15 to rotate. The drive roller 15 and the driven roller 16 are used to clamp the cleanroom paper 18, so as to drag the cleanroom paper 18 through the conveying assembly 10 to achieve the effect of continuous conveying of cleanroom paper.

[0026] The inspection platform 12 supports the cleanroom paper 18, and the space between the first feed roller 13 and the second feed roller 14 allows the cleanroom paper 18 to pass through. Specifically, as shown... Figure 2 As shown, the cleanroom paper 18 is located above the first feed roller 13 and below the second feed roller 14.

[0027] The inspection assembly 20 includes a gantry 21 mounted above the inspection platform 12, a horizontal linear module 22 mounted on the top side of the gantry 21, a vertical linear module 23 connected to the horizontal linear module 22, a rotary cylinder 24 mounted on one side of the bottom of the vertical linear module 23, a support 25 for the rotor connected to the rotary cylinder 24, an inkjet printer 26 mounted on one side of the support 25, a bracket 27 mounted on the other side of the support 25, an industrial camera 28 mounted on the end of the bracket 27 away from the support 25, and rollers 29 mounted on opposite sides of the end of the bracket 27 away from the support 25. The rollers 29 are located on opposite sides of the industrial camera 28 and are used to abut against the cleanroom paper 18 to compact the cleanroom paper 18 for inspection, ensuring the flatness and stability of the cleanroom paper 18 during the inspection process.

[0028] In this embodiment, the axis of the rotary cylinder 24 is set at a 45-degree angle to the vertical direction.

[0029] In this embodiment, the support base 25 is arranged in the shape of an isosceles right triangle. The support base 25 has two mounting surfaces arranged at 90 degrees. One mounting surface is used to support the inkjet printer 26, and the other mounting surface is used to support the bracket 27.

[0030] During operation, the conveyor motor 17 is first started, driving the active roller 15 and driven roller 16 to clamp and convey the lint-free paper 18. Simultaneously, utilizing the coordinated action of the horizontal linear module 22 and the vertical linear module 23, the roller 29 contacts the lint-free paper 18. The industrial camera 28 then captures and analyzes the surface of the lint-free paper 18 in real time. Once a defect is detected, the conveyor motor 17 is immediately braked, and the rotary cylinder 24 switches the inkjet printer 26 to face the surface of the lint-free paper 18, using the inkjet printer 26 to precisely mark the defect location. The entire inspection process is efficient, accurate, and enables comprehensive coverage and fine inspection of the lint-free paper surface.

[0031] In this embodiment, the inkjet printer 26 is a laser inkjet printer.

[0032] The aforementioned dust-free paper surface defect inspection device has a simple structure and is easy to use. Through the coordinated action of the horizontal linear module 22, the vertical linear module 23 and the rotary cylinder 24, it realizes the flexible movement of the inspection component 20 in three-dimensional space and the rapid switching between the inkjet printer 26 and the industrial camera 28, which simplifies the operation process, realizes the integration of detection and marking, ensures inspection accuracy and improves work efficiency.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The embodiments described above are merely illustrative 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 the 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 all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for inspecting surface defects in cleanroom paper, characterized in that, include: The conveying assembly includes a frame and an inspection platform mounted on top of the frame; the inspection platform is used to support the cleanroom paper. and An inspection assembly is installed above the conveying assembly. The inspection assembly includes a gantry mounted above the inspection platform, a horizontal linear module mounted on the top side of the gantry, a vertical linear module connected to the horizontal linear module, a rotary cylinder mounted on one side of the bottom of the vertical linear module, a support base for the rotor connected to the rotary cylinder, an inkjet printer mounted on one side of the support base, a bracket mounted on the other side of the support base, an industrial camera mounted on the end of the bracket away from the support base, and rollers mounted on opposite sides of the bracket away from the support base. The rollers are located on opposite sides of the industrial camera and are used to abut against the dust-free paper. The support base is arranged in an isosceles right-angled triangle and has two mounting surfaces set at 90 degrees. One mounting surface is used to support the inkjet printer, and the other mounting surface is used to support the bracket.

2. The dust-free paper surface defect inspection device according to claim 1, characterized in that, The axis of the rotary cylinder is set at a 45-degree angle to the vertical direction.

3. The dust-free paper surface defect inspection device according to claim 1, characterized in that, The conveying assembly also includes a first feed roller and a second feed roller rotatably mounted on opposite sides of the inspection platform, an active roller rotatably mounted at the outlet end of the frame, a driven roller rotatably mounted below the active roller, and a conveying motor coaxially connected to one end of the active roller; the conveying motor is used to drive the active roller to rotate, and the active roller and the driven roller are used to clamp the dust-free paper.

4. The dust-free paper surface defect inspection device according to claim 3, characterized in that, The first feed roller and the second feed roller are used for the passage of cleanroom paper; the cleanroom paper is located above the first feed roller and below the second feed roller.

5. The dust-free paper surface defect inspection device according to claim 1, characterized in that, The inkjet printer is a laser inkjet printer.