Detection device for transparent protective sheet roll material

By setting up a lamp tube in the transparent protective sheet roll material inspection device to illuminate the bottom surface and form black spots, combined with an industrial camera, the problems of low inspection efficiency and unstable quality of transparent protective sheet roll material are solved, and efficient and accurate automated inspection is achieved.

CN223841807UActive Publication Date: 2026-01-27DONGGUAN LVHUI INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202520206896.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-01-27
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

In the existing technology, the inspection of transparent protective film rolls relies on manual observation, which has problems of low efficiency and unstable quality. In particular, when inspecting the layout of electronic components, it is difficult to effectively identify defective products using ordinary light sources.

Method used

The system uses lamps installed inside the frame, with light shining upwards from the bottom of the protective sheet, passing through the transparent sheet to form black dots. The operator can observe the arrangement of these black dots with the naked eye, and the system, combined with an industrial camera and analysis system, enables automated detection.

Benefits of technology

It improves detection efficiency and accuracy, can accurately identify minor defects, reduces human intervention, and ensures consistent product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a detection device for a transparent protective sheet roll material, which comprises a rack, a feeding assembly and a discharging assembly which are arranged on the two sides of the rack, an observation table on the rack, supporting parts which are symmetrically arranged on the two sides of a penetrating table and used for adjusting the distance between a protective sheet and the observation table, and a transparent observation plate fixedly installed on the observation table. A plurality of lamp tubes are arranged in the machine frame, and when the lamp tubes work, light rays emitted by the lamp tubes serving as light sources penetrate through the observation plate and irradiate the protective sheet on the observation table. The lamp tube is arranged in the machine frame, the lamp tube generated by the lamp tube irradiates upwards from the bottom face of the protection piece, and when the lamp light irradiates the protection piece, an operator can clearly observe the arrangement condition of black spots through naked eyes. An operator can intuitively and clearly know whether the electronic elements arranged on the transparent protective sheet meet the specified requirements by observing the arrangement condition of the black spots on the base band. The inspection efficiency and the inspection quality are effectively improved, fine defects can be inspected more accurately, and the inspection range and the accuracy are improved.
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Description

Technical Field

[0001] This utility model relates to the field of transparent protective sheet roll material testing technology, and more particularly to a testing device for transparent protective sheet roll material. Background Technology

[0002] With technological advancements, automation has become a trend, effectively reducing labor costs. In the die-cutting industry, the entire product manufacturing process includes: raw materials, separation into required specifications, lamination, die-cutting, waste removal, inspection, and warehousing. In the lamination process, electronic components are typically bonded to the sheet material using a laminating machine. Industrial camera inspection equipment is frequently added to the market, providing timely feedback on product anomalies and notifying operators to make timely adjustments, preventing batch defects. Some equipment also includes a coding device. For products detected by the industrial camera, the processor transmits a signal, and the controller marks the defective products with coding. The operator then removes the coded products and replaces the good ones with the correct ones. Because defective products need to be manually removed and patching is also done manually, the patches are not fed back into the pick-and-place machine for inspection after manual patching and placement. Furthermore, the quality of patch placement varies from person to person, leading to inconsistent quality. Therefore, it is necessary to use other inspection equipment or manually inspect the position of the patches and placement again. The most common inspection method is to observe the area under light.

[0003] For example, Chinese patent CN216386828U discloses a visual inspection device for reinforcing steel sheet coils, including a material conveyor table. One side of the material conveyor table is equipped with a feeding shaft and a first drive motor, with the product coil mounted on the feeding shaft. The other side of the material conveyor table is equipped with a take-up shaft and a second drive motor. A lighting fixture is installed above the material conveyor table, and a magnifying glass is placed between the material conveyor table and the lighting fixture. Material belt limiters are installed along the feeding length of the material conveyor table, and a foot pedal switch for driving the first and second drive motors is located below the material conveyor table. Through this method, the present invention replaces manual coiling with automatic feeding and take-up, and combined with magnification, effectively improves inspection efficiency and quality, ensuring the stability of product yield. The reinforcing steel sheet coil is inspected for quality by placing the lighting fixture above the material conveyor table and using a magnifying glass. Because the lighting is positioned above the material conveyor, the light shines downwards. When this light illuminates the reinforcing steel sheet, it's difficult for the operator to visually distinguish between good and bad products. In other words, the lighting only serves to provide illumination. Therefore, a magnifying glass is needed to magnify the effect for inspection. Utility Model Content

[0004] The purpose of this invention is to provide a detection device for transparent protective sheet rolls, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a detection device for transparent protective sheet rolls, including a frame and feeding components and unloading components arranged on both sides of the frame for feeding the protective sheet and collecting the protective sheet. An observation platform on the frame has support components symmetrically arranged on both sides of the platform to adjust the distance between the protective sheet and the observation platform. A transparent observation plate is fixedly installed on the observation platform. Multiple lamps are arranged inside the frame. When the lamps are working, the light emitted by the lamps as light sources passes through the observation plate and illuminates the protective sheet on the observation platform.

[0006] Compared to existing technologies, this invention places the lamp tube inside the frame, with the light emitted from the bottom of the protective sheet shining upwards. When the light shines on the protective sheet, the light from the lamp tube passes through it. However, when electronic components are attached to the transparent protective sheet, the light from the lamp tube cannot pass through these components, thus forming a black dot on the transparent protective sheet. The operator can clearly observe the arrangement of these black dots with the naked eye. By observing the arrangement of these black dots on the baseband, the operator can intuitively understand whether the electronic components arranged on the transparent protective sheet meet the specified requirements. This effectively improves inspection efficiency and quality, more accurately detects minor defects, and increases the inspection range and accuracy.

[0007] The present invention improves the detection device for transparent protective sheet rolls by providing mounting holes extending from the inside of the frame on the observation platform, and fixing the observation plate inside the mounting holes.

[0008] The present invention improves the detection device for transparent protective sheet rolls by providing a mounting plate that is parallel to the observation plate directly below the observation plate, and arranging multiple lamps on the mounting plate between the observation plate and the mounting plate.

[0009] The improved detection device for transparent protective sheet rolls includes a mounting frame fixedly connected to the outside of the machine frame, on which a feeding roller is rotatably mounted; and a motor for driving the feeding roller to rotate is provided on one side of the feeding roller.

[0010] The improved detection device for transparent protective sheet rolls of this utility model includes two support plates fixedly installed on the frame. Each support plate is fixedly installed with a connecting plate. A guide roller, a tension roller, and an adjusting roller are arranged in a straight line between the two connecting plates. The adjusting roller is adjacent to the observation table and is arranged parallel to the observation table. The tension roller is located between the guide roller and the adjusting roller and is arranged parallel to both of them.

[0011] Compared with existing technologies, this invention allows the adjusting roller to move within the adjusting groove. When the transparency of the protective sheet is relatively poor, by changing the vertical distance between the adjusting tube and the observation table, the distance between the protective sheet and the observation table is brought closer, allowing the operator to clearly observe the arrangement of black dots with the naked eye. At the same time, the adjusting roller prevents the protective sheet from contacting the observation table during movement, avoiding scratches on the protective sheet.

[0012] The present invention improves the detection device for transparent protective sheet rolls by providing H-shaped adjustment seats at both ends of the adjustment roller, and adjusting grooves adapted to the adjustment seats on the connecting plate. Locking bolts are provided on both sides of the adjustment grooves and are threadedly connected to the connecting plate.

[0013] The present invention improves the detection device for transparent protective sheet rolls, wherein the adjusting shaft includes a connecting shaft fixedly connected to the adjusting seat, and an outer roller is rotatably mounted on the connecting shaft.

[0014] The present invention improves the detection device for transparent protective sheet rolls by providing a light-shielding plate directly above the observation plate, and the light-shielding plate and the frame are fixedly connected as a whole by tubing.

[0015] The present invention improves the detection device for transparent protective sheet rolls by installing an industrial camera on the light-shielding plate, which is located directly above the observation plate and fixedly mounted on the light-shielding plate; and an analysis system matching the industrial camera is installed inside the frame.

[0016] In addition to the technical problems solved by the present invention, the technical features constituting the technical solutions, and the advantages brought about by the technical features of these technical solutions as described above, other technical problems that the present invention can solve, other technical features contained in the technical solutions, and the advantages brought about by these technical features will be further described in detail with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0018] Figure 2 This is a cross-sectional view of the present invention.

[0019] Figure 3 This is an enlarged view of section B of this utility model.

[0020] Figure 4 This is an enlarged view of section A of this utility model.

[0021] The reference numerals in the attached diagram are as follows: 01. Frame, 02. Observation table, 03. Mounting hole, 04. Observation plate, 05. Mounting plate, 06. Lamp tube, 07. Mounting bracket, 08. Feeding roller, 09. Motor, 10. Support plate, 11. Connecting plate, 12. Guide roller, 13. Tensioning roller, 14. Adjusting roller, 15. Adjusting seat, 16. Adjusting groove, 17. Locking bolt, 18. Connecting shaft, 19. Outer roller, 20. Light shield. Detailed Implementation

[0022] The technical solutions of the present invention will now be clearly and completely described with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1-4 As shown, this utility model relates to a detection device capable of detecting the arrangement of electronic components on a roll of transparent protective sheet material. Because electronic components often require multiple steps during use, including assembly and testing, these products need to be moved. However, due to the delicate structure of electronic components, they are easily detached and can sometimes even become conductive. Therefore, the electronic components are attached to the protective sheet, which then carries them for transfer.

[0024] Please see Figure 1-3 As shown, the testing device includes a frame 01 and an observation platform 02 mounted on the frame 01. The observation platform 02 is tilted on the frame 01 for easy observation by the operator. The observation platform 02 has mounting holes 03 extending from the inside of the frame 01. An observation plate 04 is installed within the mounting holes 03. The observation plate 04 is made of a transparent, rigid material, such as glass or transparent polytetrafluoroethylene (PTFE). The observation plate 04 is fixedly mounted in the mounting holes 03 using fasteners. A mounting plate 05, parallel to the observation plate 04, is positioned directly below the observation plate 04 and is fixedly connected to the frame 01 by welding. Multiple lamps 06 are arranged on the mounting plate 05, located between the observation plate 04 and the mounting plate 05. When the lamps 06 are operating, the light emitted by the lamps passes through the observation plate 04 and illuminates the protective sheet on the observation platform 02.

[0025] A transparent protective sheet is laid flat on the observation plate 04. The light generated by the lamp 06 passes through the transparent protective sheet. However, when electronic components are attached to the transparent protective sheet, the light from the lamp 06 cannot pass through the electronic components on the transparent protective sheet. Therefore, a black dot is formed on the transparent protective sheet. The operator can clearly observe the arrangement of the black dots with the naked eye. By observing the arrangement of the black dots on the baseband, the operator can intuitively and clearly understand whether the electronic components arranged on the transparent protective sheet meet the specified requirements.

[0026] To enable the product to move from one side of the observation table 02 to the other, a feeding assembly and a discharging assembly are provided on both sides of the frame 01. The feeding assembly includes a mounting frame 07 fixedly connected to the outside of the frame 01, on which a feeding roller 08 is mounted. The feeding roller 08 is connected to the mounting frame 07 via bearings, allowing the feeding roller 08 to rotate on the mounting frame 07. The axis of the feeding roller 08 is parallel to the observation plate 04, ensuring that the product does not twist before passing through the observation table 02. The feeding roller 08 is an externally purchased air shaft, which is used to fix the material roller. A motor 09 is provided on one side of the feeding roller 08, preferably a geared motor or a synchronous motor. The purpose of choosing a geared motor is to slow down the speed of the product as it passes through the observation plate 04. Since the operator needs to observe whether the components on the product are neatly arranged during the movement, it is necessary to ensure that the product's movement speed on the observation plate 04 is not too fast. The motor is fixedly mounted on the mounting frame 07 with fasteners. The feeding roller 08 and the motor output are connected via a chain, gear, or synchronous belt drive. The feeding roller 08 is driven to rotate, thus enabling the feeding and receiving of materials. The structure of the feeding assembly described above is the same as that of the feeding component, and will not be repeated here.

[0027] Place the product roller to be inspected on the feeding roller 08 of the feeding assembly. Place one end of the product on the roller onto the observation plate 04. Start the lamp 06 in the frame 01 and the motor of the feeding assembly. The operator pulls the product along the observation plate 04 and observes whether the product arrangement is qualified and neat. After the product reaches the feeding roller 08 on the unloading assembly, the motor on the feeding assembly stops working, and the operator fixes the product on the feeding roller 08 of the unloading assembly. At this time, start the motors on both the feeding and unloading assemblies simultaneously. This allows the product on the roller to automatically move from one side of the observation plate 04 to the other side of the observation table 02.

[0028] Please see Figure 1 , 4As shown in the figure, in order to prevent the product from rubbing against the observation table 02 when passing through the observation board 04 and leaving scratches on the outer surface, support components are symmetrically arranged on both sides of the observation table 02. The support components include two support plates 10 arranged on the frame 01. The support plates 10 are fixed to the frame 01 by welding. A connecting plate 11 is arranged on each support plate 10, and the connecting plate 11 is fixedly connected to the support plate 10 through fasteners. A guide roller 12, a tension roller 13 and an adjustment roller 14 are arranged in a straight line between the two connecting plates 11. The adjustment roller 14 is adjacent to the observation table 02 and is arranged parallel to the observation board 04. The tension roller 13 is located between the guide roller 12 and the adjustment roller 14 and is arranged parallel to both of them. At both ends of the adjustment roller 14, an H-shaped adjustment seat 15 is arranged. The connecting plate 11 is provided with an adjustment groove 16 adapted to the adjustment seat 15. Locking bolts 17 are arranged on both sides of the adjustment groove 16, and the locking bolts 17 are threadedly connected to the connecting plate 11. When the locking bolts 17 are in the loosened state, the adjustment seat 15 moves in the adjustment groove 16, so as to adjust the vertical distance between the outer circumference of the adjustment roller 14 and the observation board 04. Thus, it is prevented that the product contacts the observation table 02 during movement. Thus, it is avoided that the outer surface of the product is scratched. When the locking bolts 17 are in the locked state, the adjustment seat 15 is fixed in the adjustment groove 16.

[0029] In the above solution, the structures of the guide roller 12, the tension roller 13 and the adjustment roller 14 are the same. The adjustment shaft includes a connecting shaft 18 fixedly connected to the adjustment seat 15. A bearing is fixedly installed on the connecting shaft 18, and an outer roller 19 is fixedly installed on the bearing. The outer roller 19 and the connecting shaft 18 are connected through the bearing, so that the outer roller 19 rotates on the connecting shaft 18.

[0030] In order to prevent the light on the top of the frame 01 from shining on the observation board 04 and affecting the operator's observation, a light-shielding plate 20 is arranged directly above the observation board 04 to prevent the light on the top of the frame 01 from directly shining on the observation board 04, so as to avoid the interference phenomenon between the light emitted by the lamp tube 06 in the frame 01 and the light on the top of the frame 01. So that the operator can observe more clearly. The light-shielding plate 20 and the frame 01 are fixedly connected into a whole through a pipe.

[0031] In order to improve the detection efficiency and avoid the harm to the operator's eyes caused by the operator's long-term viewing. An industrial camera is arranged on the light-shielding plate 20. The industrial camera is located directly above the observation board 04 and is fixedly installed on the light-shielding plate 20 through fasteners. An analysis system matching the industrial camera is arranged in the frame 01. The analysis system and the industrial camera described here are both prior arts and will not be elaborated here. The automatic detection of the product is realized through the cooperation of the industrial camera and the analysis system.

[0032] In use, the operator places the material roller on the feeding assembly on one side of the frame, and the feeding assembly feeds the material roller. As the product on the roller passes through the observation plate 04 on the frame 01, the lamp 06 located inside the frame 01 activates, illuminating the product through the observation plate 04 to observe the arrangement of electronic components. After passing through the observation plate 04, the product is fixed to the unloading assembly for collection. This achieves automatic product movement and continuous observation. Therefore, compared with traditional detection methods, the detection speed is faster and the accuracy is higher. Furthermore, by setting up an industrial camera and analysis system, automated detection can be achieved.

[0033] It should be noted that, for clarity, the fasteners described in this application are any one of screws, bolts, and bolts.

[0034] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A detection device for transparent protective sheet rolls, characterized in that, It includes a frame, a feeding component arranged on both sides of the frame for feeding the protective sheet material, and a discharging component for collecting the protective sheet material. There is an observation table on the frame. Support components for adjusting the distance between the protective sheet and the observation table are symmetrically arranged on both sides of the through table. A transparent observation plate is fixedly installed on the observation table. Multiple lamp tubes are arranged in the frame. When the lamp tubes work, the light emitted by the lamp tubes as a light source passes through the observation plate and irradiates on the protective sheet material on the observation table.

2. The detection device for transparent protective sheet rolls according to claim 1, characterized in that: Installation holes extending inside the frame are provided on the observation table, and the observation plate is fixedly installed in the installation holes.

3. The detection device for transparent protective sheet rolls according to claim 2, characterized in that: A mounting plate parallel to the observation plate is provided directly below the observation plate. Multiple lamp tubes are arranged on the mounting plate, and the lamp tubes are located between the observation plate and the mounting plate.

4. The detection device for transparent protective sheet rolls according to claim 1, characterized in that: The feeding component includes a mounting frame fixedly connected to the outside of the frame, and a feeding roller is rotatably arranged on the mounting frame; a motor for driving the feeding roller to rotate is arranged on one side of the feeding roller.

5. The detection device for transparent protective sheet rolls according to claim 1, characterized in that: The support component includes two support plates fixedly installed on the frame. A connecting plate is fixedly installed on each support plate. A guide roller, a tensioning roller, and an adjusting roller are arranged in a straight line between the two connecting plates. The adjusting roller is adjacent to the observation table and is arranged parallel to the observation plate; the tensioning roller is located between the guide roller and the adjusting roller and is arranged parallel to both of them.

6. The detection device for transparent protective sheet rolls according to claim 5, characterized in that: Adjusting seats in the shape of H are arranged at both ends of the adjusting roller. Adjusting grooves adapted to the adjusting seats are provided on the connecting plate. Locking bolts are arranged on both sides of the adjusting groove, and the locking bolts are threadedly connected to the connecting plate.

7. The detection device for transparent protective sheet rolls according to claim 6, characterized in that: The adjusting shaft includes a connecting shaft fixedly connected to the adjusting seat, and an outer roller is rotatably installed on the connecting shaft.

8. The detection device for transparent protective sheet rolls according to claim 1, characterized in that: A light-shielding plate is provided directly above the observation plate, and the light-shielding plate and the frame are fixedly connected as a whole through a pipe.

9. The detection device for transparent protective sheet rolls according to claim 8, characterized in that: An industrial camera is provided on the light-shielding plate. The industrial camera is located directly above the observation plate and is fixedly installed on the light-shielding plate; an analysis system matching the industrial camera is arranged in the frame.

Citation Information

Patent Citations

  • Appearance inspection equipment for reinforced steel sheet coil stock

    CN216386828U