A device for detecting the surface quality of a household appliance galvanized sheet

By designing a device with a rotatable inspection platform and adjustable brightness lighting components, the problem of rapid detection of the surface quality of galvanized steel sheets for household appliances was solved, enabling rapid and accurate defect identification and reducing the difficulty of detection and the rate of missed detection.

CN224456601UActive Publication Date: 2026-07-03CHANGSHU EVERBRIGHT MATERIAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHU EVERBRIGHT MATERIAL TECH CO LTD
Filing Date
2025-07-01
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies make it difficult to quickly and conveniently detect the quality of galvanized steel sheets used in household appliances, especially defects such as soft spots and chatter marks, which require specific angles and lighting conditions to inspect.

Method used

A device comprising an inspection platform and a lighting unit has been designed. The inspection platform is rotatable, and the lighting unit is adjustable in brightness. By rotating the platform and adjusting the brightness of the light, inspectors can quickly detect defects.

Benefits of technology

This device enables rapid and accurate detection of defects on the surface of galvanized steel sheets used in household appliances. Ordinary employees can also quickly identify defects using this device, reducing the difficulty of detection and the rate of missed detections, and improving work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a device for detecting the surface quality of household appliance galvanized sheet, including inspection platform and lighting unit, the inspection platform includes inspection platform base, swivel support and inspection platform body, the inspection platform body is pivotally connected to the inspection platform base through the swivel support, the inspection platform body is configured to be able to carry the household appliance galvanized sheet of checking, the lighting unit is configured to be able to carry out luminance adjustment to light and project the light of adjusting to the household appliance galvanized sheet of checking. The utility model can help the on -the -spot quality inspection personnel to check the defect of difficult to check position on one hand, on the other hand can assist quality inspection personnel to check the defect quickly, and the ordinary staff of slightly training can also check the defect on the surface of galvanized sheet quickly.
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Description

Technical Field

[0001] This utility model relates to the field of surface inspection technology for galvanized steel products used in household appliances, and in particular to a device for inspecting the surface quality of galvanized steel products used in household appliances. Background Technology

[0002] In the production and processing of home appliance panels, the quality requirements after galvanizing are relatively high, generally requiring the surface quality to meet the FB standard. Correspondingly, the rapid inspection of the surface quality of the steel coils becomes a difficult problem to achieve in a timely manner. Due to the difficulty in inspecting some special surface quality defects, especially soft spots and chatter marks, special angles and lighting conditions are required for successful inspection.

[0003] Therefore, those skilled in the art are dedicated to developing a device for detecting the surface quality of galvanized steel sheets used in household appliances, in order to overcome the aforementioned problems existing in the prior art. Utility Model Content

[0004] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by this utility model is how to provide a device that can quickly and conveniently detect surface quality abnormalities of galvanized steel sheets for household appliances. On the one hand, it can help on-site quality inspectors to check defects in hard-to-check locations, and on the other hand, it can assist quality inspectors in quickly checking defects. Moreover, ordinary employees with a little training can also quickly check defects on the surface of galvanized steel sheets.

[0005] To achieve the above objectives, this utility model provides a device for detecting the surface quality of galvanized steel sheets used in household appliances, comprising an inspection platform and a lighting unit. The inspection platform includes an inspection platform base, a rotating bracket, and an inspection platform body. The inspection platform body is pivotally connected to the inspection platform base via the rotating bracket. The inspection platform body is configured to support the galvanized steel sheet to be inspected. The lighting unit is configured to adjust the brightness of the light and project the adjusted light onto the galvanized steel sheet to be inspected.

[0006] Furthermore, the lighting unit includes a lighting bracket and a light assembly, the lighting bracket being positioned above the inspection platform base, and the light assembly being mounted on the lighting bracket.

[0007] Furthermore, the lighting assembly includes a power supply, a switching switch, an automatic adjustment switch, a manual adjustment switch, a photoresistor, a MOSFET, and an LED light group. The first terminal of the power supply is connected to the input terminal of the switching switch. The first output terminal of the switching switch is connected to the first terminal of the LED light group via the automatic adjustment switch and the photoresistor. The second output terminal of the switching switch is connected to the first terminal of the LED light group via the manual adjustment switch and the MOSFET. The second terminal of the LED light group is connected to the second terminal of the power supply. The outer casing of the LED light group is grounded.

[0008] Furthermore, the power supply for the lighting assembly is a 12V power supply.

[0009] Furthermore, the rotating bracket includes a rotating bracket base, a mounting plate, and a connecting column, with the mounting plate connected to the rotating bracket base via the connecting column.

[0010] Furthermore, the upper surface of the inspection platform base is provided with a groove, which is configured to accommodate the rotating support base and allow the rotating support base to rotate within the groove.

[0011] Furthermore, the rotating bracket also includes a cover plate with a hole, the cover plate being sleeved on the connecting column through the hole, and the cover plate being configured to cover the groove.

[0012] Furthermore, the rotating support base is disc-shaped, the groove is a cylindrical groove, and there is a gap between the rotating support base and the groove.

[0013] Furthermore, the gap is filled with grease.

[0014] Furthermore, the inspection platform body is fixedly mounted on the mounting plate.

[0015] The beneficial effects of this utility model are as follows:

[0016] The optimal observation angle and position are achieved by rotating the inspection platform. Adjusting the brightness of the lighting components enables on-site inspection of the steel coil's surface quality. In practical applications, placing the steel coil sample on the inspection platform and adjusting the lighting components, along with rotating the platform, allows quality inspectors to quickly and easily detect surface quality defects. Even ordinary employees without systematic training can quickly inspect the galvanized steel sheet surface for defects.

[0017] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the inspection platform according to a preferred embodiment of the present invention;

[0020] Figure 3 yes Figure 2 A partial enlarged view of the connection between the inspection platform base and the inspection platform body;

[0021] Figure 4 This is a schematic diagram of the structure of a rotating bracket according to a preferred embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the control circuit of the lighting assembly according to a preferred embodiment of the present invention. Detailed Implementation

[0023] The preferred embodiments of this utility model are described below with reference to the accompanying drawings to make the technical content clearer and easier to understand. This utility model can be embodied in many different forms, and the scope of protection of this utility model is not limited to the embodiments mentioned herein.

[0024] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and this invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of some components has been appropriately exaggerated in the drawings.

[0025] This utility model discloses an adjustable light source for inspecting the surface quality of steel coils in the production of galvanized steel sheets for household appliances, and a rotatable inspection platform. It includes an adjustable light source assembly for setting a suitable brightness when inspecting surface defects; and a rotatable inspection platform that allows the galvanized steel sheet placed on it to rotate freely, clearly positioning previously unseen corners for inspection. In practical use, the brightness adjustment of the light assembly and the platform rotation effectively detect various defects that require the necessary brightness and location for inspection.

[0026] This invention not only assists inspectors in checking for general defects in galvanized steel sheets used in household appliances, but also enables the inspection of defects that can only be detected from special angles, demonstrating excellent performance.

[0027] like Figure 1-5As shown, this embodiment provides an apparatus for detecting the surface quality of galvanized sheet for household appliances, including an inspection platform 10 and an illumination unit 20. The inspection platform 10 includes an inspection platform base 11, a rotating bracket 12, and an inspection platform body 13. The inspection platform body 13 is pivotally connected to the inspection platform base 11 via the rotating bracket 12. The inspection platform body 13 is configured to support the galvanized sheet for household appliances to be inspected. The illumination unit 20 is configured to adjust the brightness of the light and project the adjusted light onto the galvanized sheet for household appliances to be inspected.

[0028] The inspection platform body 13 can rotate 180° relative to the inspection platform base 11, allowing for free rotation to ensure that every part of the galvanized sheet of the household appliance to be inspected can be easily inspected.

[0029] The inspection platform 10 adopts a steel structure plus a stainless steel glass platform.

[0030] The lighting unit 20 includes a lighting bracket 22 and a light assembly 21. The lighting bracket 22 is mounted above the inspection platform base 11, and the light assembly 21 is mounted on the lighting bracket 22.

[0031] Preferably, the lighting unit 20 includes a group of identical lighting components 21, each of which is vertically mounted on the lighting bracket 22.

[0032] The lighting unit 20 has adjustable lighting brightness for all the light components 21. The brightness of the light components 21 can be adjusted by using a knob switch. By adjusting the brightness of the light, defects that can only be detected under low light conditions can be found.

[0033] Preferably, the lighting assembly 21 uses white light with adjustable brightness for illumination.

[0034] The lighting assembly 21 includes a power supply 211, a switching switch 212, an automatic adjustment switch 213, a manual adjustment switch 214, a photoresistor 215, a MOSFET 216, and an LED light group 217. The first terminal of the power supply 211 is connected to the input terminal of the switching switch 212. The first output terminal of the switching switch 212 is connected to the first terminal of the LED light group 217 via the automatic adjustment switch 213 and the photoresistor 215. The second output terminal of the switching switch 212 is connected to the first terminal of the LED light group 217 via the manual adjustment switch 214 and the MOSFET 216. The second terminal of the LED light group 217 is connected to the second terminal of the power supply 211. The outer casing of the LED light group 217 is grounded 218.

[0035] When the switch 212 selects the automatic mode, the input terminal of the switch 212 is connected to the first output terminal, and the brightness of the LED light group 217 can be automatically adjusted by the automatic adjustment switch 213 and the photoresistor 215.

[0036] When the switch 212 is in manual mode, the input and second output terminals of the switch 212 are connected, and the brightness of the LED group 217 can be manually adjusted by manually adjusting the switch 214 and the MOSFET 216.

[0037] The lighting assembly 2 is powered by a 12V power supply, which ensures the safety and reliability of the operation site.

[0038] It should be noted that the low-voltage LED light assembly involved in this utility model can be purchased directly on the market, and will not be described in detail here.

[0039] The rotating bracket 12 is made of SUS316 stainless steel to ensure that it will not rust during use.

[0040] The rotating bracket 12 includes a rotating bracket base 121, a mounting plate 122, and a connecting column 123. The mounting plate 122 is connected to the rotating bracket base 121 via the connecting column 123.

[0041] The inspection platform base 11 is also made of SUS316 stainless steel to ensure the rust resistance of the inspection platform.

[0042] The upper surface of the inspection platform base 11 is provided with a groove 111, which is configured to accommodate the rotating support base 121 and allow the rotating support base 121 to rotate within the groove 111. The groove 111 can be machined.

[0043] The rotating bracket 12 also includes a cover plate 124 with a hole. The cover plate 124 is fitted onto the connecting post 123 through the hole and is configured to close onto the groove 111. The cover plate 124 can be welded onto the groove 111.

[0044] Preferably, the rotating support base 121 is disc-shaped, and the groove 111 is a cylindrical groove, which facilitates the inspection of the platform's rotation.

[0045] There is a gap between the rotating bracket base 121 and the groove 111, and the gap can be filled with grease.

[0046] Preferably, a grease filling line is installed inside the groove 111, which allows for convenient grease replenishment and ensures the smooth rotation of the inspection platform.

[0047] The inspection platform body 13 is fixedly mounted on the mounting plate 122.

[0048] The inspection platform body 13 is made of tempered glass, which ensures that the surface of the inspection platform is flat, making it convenient to inspect the shape of the galvanized sheet of the household appliance.

[0049] In this embodiment, the brightness of the lighting unit can be adjusted. By adjusting the brightness of the inspection and rotating the inspection platform, defects that cannot be quickly identified in the early stages can be quickly discovered, saving a lot of defect finding time and greatly reducing the skills training required for inspection personnel. Without increasing too much cost, it achieves the rapid and accurate finding of defects that are difficult to identify in the early stages, reduces the occurrence of missed inspections, improves on-site work efficiency, and reduces the difficulty of quality inspection work.

[0050] In this embodiment, the inspection platform base is manufactured first, followed by the rotating bracket and the main body of the inspection platform. Then, the lighting bracket is manufactured, and finally, the lighting components are installed. All lighting components are made of 12V LED lights to ensure the safety of the lighting power supply.

[0051] Implementation effect

[0052] Through practical application comparisons, compared to general inspection devices, this device is significantly more effective in detecting special defects such as bubbles and chatter marks. It can quickly detect defects that are difficult for general inspection devices to inspect. By rotating the angle of the galvanized sheet and rotating the inspection platform, defects such as soft spots and chatter marks can be quickly detected, which are difficult for general inspection devices to detect. Through a comprehensive comparison of cost and inspection effect, the inspection device of this invention is significantly superior to general inspection devices.

[0053] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A device for detecting the surface quality of galvanized steel sheets used in household appliances, characterized in that, The device includes an inspection platform and a lighting unit. The inspection platform includes an inspection platform base, a rotating bracket, and an inspection platform body. The inspection platform body is pivotally connected to the inspection platform base via the rotating bracket. The inspection platform body is configured to support the galvanized sheet of the household appliance to be inspected. The lighting unit is configured to adjust the brightness of the light and project the adjusted light onto the galvanized sheet of the household appliance to be inspected.

2. The device for detecting the surface quality of a household galvanized sheet according to claim 1, wherein, The lighting unit includes a lighting bracket and a light assembly. The lighting bracket is mounted above the base of the inspection platform, and the light assembly is mounted on the lighting bracket.

3. The device for detecting the surface quality of a household galvanized sheet as claimed in claim 2, wherein, The lighting assembly includes a power supply, a switch, an automatic adjustment switch, a manual adjustment switch, a photoresistor, a MOSFET, and an LED light group. The first terminal of the power supply is connected to the input terminal of the switch. The first output terminal of the switch is connected to the first terminal of the LED light group via the automatic adjustment switch and the photoresistor. The second output terminal of the switch is connected to the first terminal of the LED light group via the manual adjustment switch and the MOSFET. The second terminal of the LED light group is connected to the second terminal of the power supply. The outer casing of the LED light group is grounded.

4. The device for detecting the surface quality of a household galvanized sheet according to claim 3, wherein, The power supply for the lighting assembly is a 12V power supply.

5. The device for detecting the surface quality of a household galvanized sheet as claimed in claim 1, wherein The rotating bracket includes a rotating bracket base, a mounting plate, and a connecting column, and the mounting plate is connected to the rotating bracket base through the connecting column.

6. The device for detecting the surface quality of a household galvanized sheet as claimed in claim 5, wherein, The upper surface of the inspection platform base is provided with a groove, which is configured to accommodate the rotating support base and allow the rotating support base to rotate within the groove.

7. The apparatus for detecting the surface quality of galvanized steel sheets for household appliances as described in claim 6, characterized in that, The rotating bracket also includes a cover plate with a hole, which is sleeved on the connecting column and configured to cover the groove.

8. The device for detecting the surface quality of a household galvanized sheet according to claim 7, wherein, The rotating support base is disc-shaped, the groove is a cylindrical groove, and there is a gap between the rotating support base and the groove.

9. The device for detecting the surface quality of a household galvanized sheet according to claim 8, wherein, The gap is filled with grease.

10. The device for detecting the surface quality of a household galvanized sheet as claimed in claim 5, wherein, The inspection platform body is fixedly mounted on the mounting plate.