A mobile phone back cover continuous detection device

Abstract

The application discloses a kind of mobile phone back cover continuous detection device, it is related to detection equipment technical field, including rotating table, and multiple mobile phone back cover loading platform are presented annular array in rotating table upper end;Blowing dust remover, mobile phone back cover multi-angle detection mechanism, CCD plane detection mechanism, back cover film pasting mechanism, unloading and moving component and storage component are arranged along the periphery of rotating table;The present application is mainly composed of detection platform, multi-angle detection mechanism, dust removal mechanism and automatic feeding mechanism.Detection platform is the basis of the whole device, provides stable support for each part mechanism.Multi-angle detection mechanism is installed above detection platform, can flexibly detect mobile phone back cover from different angles, to ensure the comprehensiveness and accuracy of detection.Dust removal mechanism is arranged at the front end of detection area, before mobile phone back cover enters detection area, dust on the back cover surface is removed clean by efficient dust suction and blowing device, to avoid dust interference on detection result.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, specifically to a continuous testing device for mobile phone back covers. Background Technology

[0002] As a core component of mobile terminals, serving as an exterior design element, structural protector, and functional integrator, the quality of the phone's back cover directly determines the overall assembly precision, appearance consistency, reliability, and brand reputation. Implementing comprehensive, multi-dimensional testing at the end of the production process is essential to ensure product compliance, assembly compatibility, functional integrity, and batch stability. Its core necessity is as follows: 1. Ensure the assembly accuracy and dimensional compatibility of the entire machine. By quantitatively testing key dimensions such as flatness, contour, hole accuracy, edge gap, and step difference, we ensure that the back cover is precisely matched with the mid-frame, camera module, battery, and wireless charging components. This eliminates problems such as assembly failure, uneven gaps, warping, and jamming caused by dimensional deviations, thus meeting the high-precision assembly requirements of the entire terminal device.

[0003] 2. Ensure that the appearance quality is consistent with the brand visual identity. We conduct rigorous assessments of appearance defects such as color difference, gloss, scratches, dents, chipping, impurities, uneven coating, spraying defects, and mold marks to ensure that product appearance meets customer specifications and industry AUDIT standards, maintain a consistent brand visual quality, and prevent defective products from entering the market and causing customer complaints and returns.

[0004] 3. Ensure structural strength and safety in use. We conduct reliability tests on hardness, adhesion, impact resistance, bending resistance, friction resistance, sweat resistance, and high temperature and humidity resistance. We verify the structural integrity and protective capabilities of the back cover under long-term use, drop, friction, and environmental aging scenarios to prevent safety and quality risks such as cracking, paint peeling, deformation, and failure during use.

[0005] Chinese Patent Application No. 202422147875.6 provides a mobile phone back cover detection device, including a housing and a turntable. The turntable is provided on the top of the housing and is rotatably connected to the housing. A sliding groove is embedded on the surface of the turntable. A vertical plate is provided inside the sliding groove and is slidably connected to the sliding groove. An electric telescopic rod is provided inside the sliding groove. A fixing frame is provided on the top of the vertical plate and is fixedly connected to the vertical plate. A placement box is provided inside the fixing frame and is rotatably connected to the fixing frame. A suction cup is provided inside the placement box.

[0006] The mobile phone back cover inspection device in the aforementioned patent only performs simple vertical inspection and cannot perform multi-angle inspection of the mobile phone back cover, resulting in low inspection accuracy. In addition, the mobile phone back cover still requires manual loading, making it impossible to complete continuous and uninterrupted inspection by the equipment, and the manual labor intensity is high. Summary of the Invention

[0007] The purpose of this invention is to provide a continuous inspection device for mobile phone back covers, capable of multi-angle inspection of mobile phone back covers, and capable of removing dust before inspection to reduce dust diffusion and misjudgment by the inspection mechanism. It also achieves continuous and uninterrupted automated inspection, effectively reducing manual labor intensity. The device mainly consists of an inspection platform, a multi-angle inspection mechanism, a dust removal mechanism, and an automatic feeding mechanism. The inspection platform, as the foundation of the entire device, provides stable support for all components. The multi-angle inspection mechanism, installed above the inspection platform, can flexibly inspect the mobile phone back cover from different angles, ensuring comprehensiveness and accuracy of the inspection. The dust removal mechanism, located at the front of the inspection area, uses efficient suction and blowing devices to remove dust from the surface of the back cover before it enters the inspection area, preventing dust from interfering with the inspection results. The automatic feeding mechanism is responsible for accurately transporting the mobile phone back cover to be inspected onto the inspection platform, realizing a continuous and uninterrupted inspection process. Through the coordinated work of these mechanisms, the device can greatly improve the efficiency and accuracy of mobile phone back cover inspection, ensure the structural strength and safety of the back cover, and provide strong assurance for the overall quality of the mobile phone. In order to solve the technical problems mentioned in the background section.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A continuous inspection device for mobile phone back covers includes a rotating stage, which is mounted on a chassis; a feeding assembly is fixed to one side of the chassis; a feeding transfer assembly is also mounted on the feeding assembly; a temporary storage rotating stage is provided below the middle position of the feeding transfer assembly, and the temporary storage rotating stage is fixed to one side of the chassis. The rotating platform has multiple mobile phone back cover carriers arranged in a ring array at its upper end; a blower dust collector, a mobile phone back cover multi-angle detection mechanism, a CCD plane detection mechanism, a back cover film application mechanism, a material unloading and transfer assembly, and a material storage assembly are arranged around the rotating platform. The loading assembly includes a frame body, with slide rails fixed to both sides of the top of the frame body by countersunk bolts. A tray transfer platform slides on each slide rail, and the two tray transfer platforms clamp and slide the mobile phone back cover tray. The bottom of the tray transfer platform near the back panel is also riveted to the chain by a drive plate. The chain is arranged in an L-shape after being closed and is installed on the outside of the back panel in cooperation with multiple sprockets. The frame body is provided with multiple shelves, which divide the frame body into two chambers. One chamber is equipped with a feeding linear module, and the other chamber is equipped with a discharging linear module. A pallet carrier is installed on the discharging linear module. The drive unit of the feeding linear module is fixed with a support plate; the bottom of the support plate is provided with multiple guide posts and is slidably connected to the sliding frame; the two sides of the sliding frame are slidably connected to the profile slide; the profile slide is fixed to the inside of the back plate; the sliding frame is riveted to the chain by Z-shaped connecting pieces.

[0009] Preferably, T-shaped rods are fixed on both sides of the bottom of the tray, and the T-shaped rods are slidably connected to the sliding frame; a spring is also sleeved on the T-shaped rod, and the spring is located below the sliding frame.

[0010] Preferably, the pallet transfer platform includes an L-shaped bottom shell, with a sliding clamp block slidably connected to the upper end of the bottom shell; a return spring is also provided between the sliding clamp block and the bottom shell; and a cover plate for protecting the return spring is bolted to the top of the bottom shell. The sliding clamp has a C-shaped groove on the side that contacts the back cover tray of the mobile phone; The bottom shells of the two pallet transfer platforms are fixedly connected on one side by a C-shaped connecting rod.

[0011] Preferably, the sliding clamp is also integrally provided with a wedge-shaped block on the side near the back cover tray of the mobile phone; the wedge-shaped block is located above the C-shaped groove; A stop block is fixed above one end of the material feeding linear module installed on the frame body, and arc-shaped blocks are fixed at both ends of the stop block to force the two pallet transfer tables to slide.

[0012] Preferably, the feeding and transfer assembly includes a lead screw linear module; the lead screw linear module is fixed to the machine housing by a bracket, wherein a sliding carrier is fixed on the drive part of the lead screw linear module; a first negative pressure suction head and a second negative pressure suction head are installed on the sliding carrier.

[0013] Preferably, the back cover film application mechanism includes a Z-axis drive module; the bottom of the Z-axis drive module is fixed to the chassis by a bracket; an X-axis drive module is installed on the Z-axis drive module; the drive part of the X-axis drive module is installed with the Z-axis drive module; and a negative pressure material handling component is installed on the drive part of the Z-axis drive module. The chassis is also equipped with a worktable; the worktable is equipped with a film-applying mechanism, and a placement platform is provided on one side of the film-applying mechanism.

[0014] Preferably, the storage components are provided in four parts, of which two are finished product storage mechanisms, one is a non-defective product storage mechanism, and the other is a non-uncertain product storage mechanism; all four storage components adopt the same structure.

[0015] Preferably, the storage assembly includes a mounting frame, on one side of which a drive motor is fixed, and on the other side, two guide rails are fixed, with slide blocks slidably connected to the two guide rails; the slide blocks are connected to a lead screw; both ends of the lead screw are installed in conjunction with the mounting frame via bearing seats; a bracket is also fixed to the outside of the slide blocks; the upper end of the bracket is slidably connected to the storage rack; and the storage rack is inserted into the top of the mounting frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, when the two edges of the mobile phone back cover tray on the tray come into contact with the inclined surfaces at the bottom of the two sliding clamps, the sliding clamps are forced to compress the return spring and move outward; until the upper end of the mobile phone back cover tray comes into contact with the wedge block, the return spring resets the sliding clamps, so that the C-shaped groove on the outer side of the sliding clamps is just locked at the edge of the mobile phone back cover tray, thereby achieving the clamping of the mobile phone back cover tray.

[0017] 2. In this invention, after all the back covers of the mobile phone are removed, the feeding linear module moves downward at a faster speed so that the next mobile phone back cover tray can be transported to the tray on the feeding linear module; at the same time, the mobile phone back cover tray after the back cover has been removed will continue to move to the right. When the mobile phone back cover tray reaches the stop block, the arc-shaped block just hits the inside of the wedge-shaped block, causing both sliding clamps to slide outward. At this time, the mobile phone back cover tray will fall onto the tray carrier, realizing the recycling of the idle mobile phone back cover tray.

[0018] 3. In this invention, after the phone back cover inspection is completed, qualified products are taken away by the negative pressure material-picking component installed at the bottom of the Z-axis drive module and placed on the placement platform. Then, the X-axis drive module and the Z-axis drive module work together to move the negative pressure material-picking component to the film-applying mechanism. The film-applying mechanism applies a suitable protective film to it. After the film is applied, the negative pressure material-picking component, driven again by the X-axis drive module and the Z-axis drive module, transfers the film-applied phone back cover from the film-applying mechanism and places it on the phone back cover carrier. The entire back cover film-applying mechanism operates in a compact and orderly manner, with excellent cooperation between the various drive modules and components, greatly improving the efficiency and quality of phone back cover film application. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 In this invention Figure 1 A schematic diagram of the rear structure.

[0021] Figure 3 In this invention Figure 1 A partial structural diagram.

[0022] Figure 4 In this invention Figure 3 Another perspective illustration.

[0023] Figure 5 In this invention Figure 4 The left view.

[0024] Figure 6 In this invention Figure 5 AA sectional view.

[0025] Figure 7 In this invention Figure 3 A schematic diagram of the internal structure.

[0026] Figure 8 In this invention Figure 4 A schematic diagram of the rear structure.

[0027] Figure 9 In this invention Figure 7 Another perspective illustration.

[0028] Figure 10 In this invention Figure 8 Top view.

[0029] Figure 11 In this invention Figure 6 Enlarged diagram of point B.

[0030] Figure 12 In this invention Figure 4 Enlarged diagram of point C.

[0031] Figure 13 In this invention Figure 7 Enlarged diagram of point D.

[0032] Figure 14 In this invention Figure 8 Enlarged diagram of point E.

[0033] Figure 15 In this invention Figure 9 Enlarged schematic diagram at point F.

[0034] Figure 16 In this invention Figure 10 Enlarged schematic diagram at point G.

[0035] Figure 17 This is a schematic diagram of the back cover film application mechanism in this invention.

[0036] Figure 18 This is a schematic diagram of the material storage component in this invention.

[0037] Figure 19 This is a schematic diagram of the overall structure of the present invention.

[0038] Figure 20 This is a schematic diagram of the overall structure of the present invention.

[0039] In the diagram: 1-Feeding and transfer assembly, 2-Feeding assembly, 3-Temporary storage rotary table, 4-Rotary table, 5-Mobile phone back cover carrier, 6-Dust remover, 7-Multi-angle detection mechanism for mobile phone back cover, 8-CCD plane detection mechanism, 9-Back cover film application mechanism, 10-Chassis, 11-Unloading and transfer assembly, 12-Storage assembly; 21-Frame body, 22-Slide rail, 23-Pattern transfer table, 24-Mobile phone back cover tray, 25-Pattern plate, 26-Sliding frame, 27-Back plate, 28-Feeding linear module, 29-Profile slide, 210-Through groove, 211-Z-type connecting piece, 212-Chain, 213-Sprocket, 214-Drive piece, 215-T-shaped rod, 216-Spring, 217-Guide column, 218-Stop block, 219-Arc block, 220-Unloading linear module, 221-Pattern carrier; 231-Bottom shell, 232-Clamping block, 233-Cover plate, 234-Return spring, 235-Wedge block, 236-C-type connecting rod; 101-Screw linear module, 102-Sliding carrier, 103-First negative pressure suction head, 104-Second negative pressure suction head; 71-Standing base, 72-Screw drive module, 73-Adjustable frame, 74-Mounting frame, 75-Hanging base, 76-Vertical slide rail, 77-Adjustable slide block, 78-L-shaped frame, 79-CCD camera; 91-X-axis drive module, 92-Y-axis drive module, 93-Z-axis drive module, 94-Placement stage, 95-Film application mechanism, 96-Worktable; 121-Mounting bracket, 122-Drive motor, 123-Pulley, 124-Lead screw, 125-Slide block, 126-Guide rail, 127-Storage rack, 128-Bracket. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figure 1-20 In this embodiment of the invention, a continuous detection device for mobile phone back covers includes a rotating stage 4, which is mounted on a housing 10; a feeding assembly 2 is fixed on one side of the housing 10; a feeding transfer assembly 1 is also mounted on the feeding assembly 2; a temporary storage rotating stage 3 is provided below the middle position of the feeding transfer assembly 1, which is fixed on one side of the housing 10. The rotating platform 4 has multiple mobile phone back cover carriers 5 arranged in a ring array at its upper end; a blower dust collector 6, a mobile phone back cover multi-angle detection mechanism 7, a CCD plane detection mechanism 8, a back cover film application mechanism 9, a material unloading and transfer assembly 11, and a material storage assembly 12 are arranged around the rotating platform 4.

[0042] By adopting the above technical solution, during use, the feeding component 2 feeds the phone back cover, and the feeding and transfer component 1 transfers the phone back cover to the temporary storage rotating stage 3. The temporary storage rotating stage 3 rotates 90 degrees, turning the vertical phone back cover into a horizontal position. Then, the feeding and transfer component 1 transfers the phone back cover to the phone back cover carrier 5 on the rotating stage 4. Under the rotation of the rotating stage 4, the phone back cover rotates to below the blower dust collector 6, where the blower dust collector 6 blows air to remove dust from the phone back cover. After dust removal, the phone back cover continues to rotate to below the phone back cover multi-angle detection mechanism 7, where the phone back cover multi-angle detection mechanism 7 performs multi-angle detection to ensure that its appearance and dimensions at each angle meet the requirements. After the detection is completed, the phone back cover rotates with the rotating stage 4 to below the CCD plane detection mechanism 8, where the CCD plane detection mechanism 8 performs precise detection of the plane of the phone back cover to check for any plane defects, scratches, or other problems.

[0043] Next, the phone back cover continues to rotate to the back cover film application mechanism 9, which will apply a protective film to the phone back cover to protect the surface of the back cover and prevent it from being scratched during subsequent assembly and use.

[0044] After the screen protector is applied, the phone back cover is rotated into the working range of the unloading and transfer assembly 11. The unloading and transfer assembly 11 transfers the qualified phone back covers from the phone back cover carrier 5 on the rotary table 4 to the storage assembly 12 for storage, so that they can be used in subsequent assembly of the whole device. Phone back covers that fail the inspection or need to be re-inspected are placed in the special storage assembly 12.

[0045] The entire testing process, through the continuous rotation of the rotary table 4 and the orderly coordination of various testing and processing mechanisms, realizes continuous testing and processing of the phone back cover, greatly improving testing efficiency and accuracy, ensuring the quality of the phone back cover, and thus providing strong support for the assembly precision, appearance quality, structural strength, and safety of the whole device.

[0046] Please see the appendix Figure 20 More specifically, the multi-angle detection mechanism 7 for the mobile phone back cover includes a stand 71, on the inner side of which a lead screw drive module 72 is fixed, and an adjustment frame 73 is installed on the drive part of the lead screw drive module 72; an installation frame 74 is fixed on the outer side of the adjustment frame 73, and a hanging seat 75 is fixed on the bottom side of each of the four sides of the installation frame 74; a vertical slide rail 76 is fixed on the inner side of each hanging seat 75 by countersunk bolts; an adjustable slide block 77 is slidably connected to the vertical slide rail 76 and locked in place by bolts; an L-shaped frame 78 is fixed on the inner side of the adjustable slide block 77; and a CCD camera 79 is fixed on the L-shaped frame 78 by bolts.

[0047] By adopting the above technical solution, when inspecting the back cover of a mobile phone, the lead screw drive module 72 drives the adjustment carrier 73 to move up and down as a whole, which allows multiple CCD cameras 79 to capture images of the back cover of the mobile phone. After loosening the bolts on the adjustment slide 77, the adjustment slide 77 can slide along the vertical slide rail 76, thereby adjusting the height of a single CCD camera 79. After loosening the bolts between the L-shaped bracket 78 and the CCD camera 79, the tilt angle of the CCD camera 79 can be adjusted, thereby meeting the inspection requirements of the back cover of the mobile phone.

[0048] The CCD plane inspection mechanism 8 employs a vertical camera, and multiple CCD cameras 79, along with the vertical camera on the CCD plane inspection mechanism 8, can inspect from all sides and above. The cameras transmit the collected information to the control system, which analyzes and processes the image data to determine whether the phone's back cover has defects or does not meet standards. This multi-angle, all-around inspection method can effectively detect scratches, dents, color differences, and other issues on the product surface, while also detecting details such as the accuracy of assembly holes and the smoothness of edges.

[0049] The software algorithm first collects all defects on the phone's back cover using the camera lens. This includes defects such as scratches, blemishes, dirt, imperfections, and watermarks. After collection and labeling, the software annotates the defects. Following annotation, the software performs deep learning. After deep learning is complete, all images are uploaded to a server. Once the server has accumulated a sufficient number of defective images, the phone's back cover defect detection is performed. The more defective samples accumulated, the more accurate the detection becomes.

[0050] Please see the appendix Figure 3-10The loading assembly 2 includes a frame body 21. Slide rails 22 are fixed on both sides of the top of the frame body 21 by countersunk bolts. A tray transfer platform 23 slides on each slide rail 22. The two tray transfer platforms 23 clamp and slide the mobile phone back cover tray 24. The bottom of the tray transfer platform 23 near the back plate 27 is also riveted to the chain 212 by a drive plate 214. The chain 212 is arranged in an L-shape after being closed and is installed on the outside of the back plate 27 in cooperation with multiple sprockets 213. The frame body 21 is provided with multiple shelves, which divide the frame body 21 into two chambers. One chamber is equipped with a feeding linear module 28, and the other chamber is equipped with a discharging linear module 220. A pallet carrier 221 is installed on the discharging linear module 220. The drive unit of the feeding linear module 28 is fixed with a support plate 25; the bottom of the support plate 25 is provided with multiple guide posts 217 and is slidably connected to the sliding frame 26; the two sides of the sliding frame 26 are slidably connected to the profile slide 29; the profile slide 29 is fixed to the inside of the back plate 27; the sliding frame 26 is riveted to the chain 212 through Z-shaped connecting pieces 211.

[0051] More specifically, T-shaped rods 215 are fixed on both sides of the bottom of the tray 25, and the T-shaped rods 215 are slidably connected to the sliding frame 26; a spring 216 is also sleeved on the T-shaped rods 215, and the spring 216 is located below the sliding frame 26.

[0052] The tray transfer platform 23 includes an L-shaped bottom shell 231, with a sliding clamping block 232 slidably connected to the upper end of the bottom shell 231; a return spring 234 is also provided between the sliding clamping block 232 and the bottom shell 231; and a cover plate 233 for protecting the return spring 234 is bolted to the top of the bottom shell 231. The sliding clamp 232 has a C-shaped groove on the side that contacts the mobile phone back cover tray 24; One side of the bottom shell 231 of the two pallet transfer platforms 23 is fixedly connected by a C-shaped connecting rod 236.

[0053] By adopting the above technical solution, after the mobile phone back cover tray 24 is filled with mobile phone back covers, it is conveyed to the tray 25 by the transmission mechanism. The feeding linear module 28 drives the tray 25 to move upward. During the movement, it also pulls the sliding frame 26 upward. Since the sliding frame 26 is connected to the chain 212 through the Z-shaped connecting piece 211, the upward movement of the sliding frame 26 drives the chain 212 to rotate clockwise (to... Figure 14For example), the chain 212 pulls the tray transfer table 23 to move above the mobile phone back cover tray 24 through the drive plate 214; when the tray transfer table 23 moves to the end of the slide rail 22, it is stopped by the limit block and cannot continue to move. At this time, the feeding linear module 28 drives the tray 25 to continue to rise, so that the tray 25 compresses the spring 216 and continues to move upward. When the two edges of the phone back cover tray 24 on the tray 25 contact the inclined surfaces at the bottom of the two sliding clamps 232, the sliding clamps 232 will be forced to compress the return spring 234 and move outward. After the upper end of the phone back cover tray 24 contacts the wedge block 235, the return spring 234 will reset the sliding clamps 232, so that the C-shaped groove on the outer side of the sliding clamps 232 is just locked at the edge of the phone back cover tray 24, thus clamping the phone back cover tray 24.

[0054] After the phone back cover tray 24 is clamped, the feeding linear module 28 slowly moves down, causing the tray transfer stage 23 to slowly move the phone back cover tray 24 to the right. This allows the feeding transfer component 1 to accurately pick up multiple rows of phone back covers.

[0055] After all the phone back covers are removed, the feeding linear module 28 moves downward at a faster speed so that the next phone back cover tray 24 can be transported to the tray 25 on the feeding linear module 28. At the same time, the phone back cover tray 24 after the phone back cover has been removed will continue to move to the right. When the phone back cover tray 24 reaches the stop block 218, the arc block 219 just hits the inside of the wedge block 235, causing both sliding clamps 232 to slide outward. At this time, the phone back cover tray 24 will fall onto the tray carrier 221, realizing the recycling of the idle phone back cover tray 24.

[0056] In this embodiment, the sliding clamp 232 is also integrally provided with a wedge block 235 on the side near the back cover tray 24 of the mobile phone; the wedge block 235 is located above the C-shaped groove; A stop block 218 is fixed above one end of the unloading linear module 220 on the frame body 21. At both ends of the stop block 218 are arc-shaped blocks 219 for forcing the two pallet transfer tables 23 to slide.

[0057] By using the arc-shaped block 219 to force the sliding clamp 232 to move outward, the problem of the mobile phone back cover tray 24 being difficult to recycle is solved. It eliminates the need for manual handling of each tray, effectively reducing labor intensity and improving equipment efficiency.

[0058] Please see the appendix Figure 16In this embodiment, the feeding and transfer assembly 1 includes a lead screw linear module 101; the lead screw linear module 101 is fixed to the housing 10 by a bracket, wherein a sliding carrier 102 is fixed on the drive part of the lead screw linear module 101; a first negative pressure suction head 103 and a second negative pressure suction head 104 are installed on the sliding carrier 102.

[0059] By adopting the above technical solution, when loading the back cover of a mobile phone, since the arrangement of the back cover tray 24 and the back cover platform 5 are different, it is necessary to reverse the direction. The lead screw linear module 101 drives the sliding carrier 102 to move. The first negative pressure suction head 103 transfers the back cover of the mobile phone to the temporary storage rotating table 3. After the temporary storage rotating table 3 rotates 90 degrees, while the first negative pressure suction head 103 is picking up the next back cover of the mobile phone, the second negative pressure suction head 104 will pick up the back cover of the mobile phone after the direction has been reversed. When the first negative pressure suction head 103 places the next back cover of the mobile phone on the rotating table 3, the second negative pressure suction head 104 places the back cover of the mobile phone after the direction has been reversed on the back cover platform 5 for inspection.

[0060] This feeding method not only cleverly solves the problem of inconsistent layout between the phone back cover tray and the phone back cover carrier, but also achieves efficient continuous feeding operations. The rotation process of the temporary storage rotating table is closely coordinated with the pick-and-place action of the suction head, greatly reducing feeding time. At the same time, the negative pressure suction head design ensures stability and reliability when picking up and transferring phone back covers, avoiding situations where phone back covers fall or shift due to weak adhesion, further improving feeding accuracy. This efficient and stable feeding mechanism provides a solid foundation for subsequent phone back cover inspection work, ensuring that the entire continuous phone back cover inspection device can operate efficiently and stably, improving production efficiency and product quality.

[0061] Please see Figure 17 In this embodiment, the back cover film application mechanism 9 includes a Z-axis drive module 93; the bottom of the Z-axis drive module 93 is fixed to the chassis 10 by a bracket; an X-axis drive module 91 is installed on the Z-axis drive module 93; the drive part of the X-axis drive module 91 is installed on the Z-axis drive module 93; and a negative pressure material handling component is installed on the drive part of the Z-axis drive module 93. The chassis 10 is also fixed with a worktable 96; the worktable 96 is provided with a film application mechanism 95, and a placement platform 94 is provided on one side of the film application mechanism 95.

[0062] By adopting the above technical solution, after the phone back cover inspection is completed, qualified products are taken away by the negative pressure picking component installed at the bottom of the Z-axis drive module 93 and placed on the placement platform 94. Then, the X-axis drive module 91 and the Z-axis drive module 93 work together to move the negative pressure picking component to the film application mechanism 95. The film application mechanism 95 applies a suitable protective film to it. After the film application is completed, the negative pressure picking component, driven by the X-axis drive module 91 and the Z-axis drive module 93, transfers the film-applied phone back cover from the film application mechanism 95 and places it on the phone back cover carrier 5. The entire back cover film application mechanism 9 operates in a compact and orderly manner, with each drive module and component working in perfect harmony, greatly improving the efficiency and quality of phone back cover film application.

[0063] In this embodiment, there are four storage components 12, two of which are finished product storage mechanisms, one is a non-defective product storage mechanism, and the other is a non-uncertain product storage mechanism; all four storage components 12 adopt the same structure.

[0064] After multi-angle inspection, the phone back covers are distinguished into qualified products, unqualified products, and products awaiting determination. The different phone back covers are then placed into the finished product storage mechanism, the unqualified product storage mechanism, or the uncertain product storage mechanism by the unloading and transfer component 11. This categorized storage method allows for clear management of phone back covers in different quality states. Qualified products in the finished product storage area can directly proceed to the subsequent assembly stage. Because their quality has undergone rigorous testing, it effectively ensures the accuracy and dimensional compatibility of the final assembly, while also guaranteeing consistency in appearance quality and brand visual identity, laying the foundation for overall product quality.

[0065] The phone back covers in the defective product storage area will be centrally processed. These defective products may undergo further analysis to identify the causes of non-compliance, such as issues with the manufacturing process or the quality of the raw materials. Based on the analysis results, the production process can be optimized and improved to prevent the same problems from occurring in subsequent production, thereby improving overall production quality and efficiency.

[0066] For products awaiting approval in the uncertain product storage area, detailed testing and evaluation will be conducted again. More precise testing methods and standards will be used to determine whether these products are ultimately qualified or unqualified. This minimizes misjudgments and ensures that every phone back cover entering the finished product stage meets high-quality standards, thereby ensuring the overall structural strength and safety of the phone. The entire storage and classification management process is closely centered on the goals of ensuring phone back cover quality and improving production efficiency, making the entire production process more scientific, rational, and efficient.

[0067] Please see the appendix Figure 18 In this embodiment, the storage assembly 12 includes a mounting frame 121. A drive motor 122 is fixed to one side of the mounting frame 121, and two guide rails 126 are fixed to the other side. Slide seats 125 are slidably connected to the two guide rails 126. The slide seats 125 are connected to a lead screw 124. The two ends of the lead screw 124 are installed in conjunction with the mounting frame 121 through bearing seats. Pulleys 123 are installed on the lower end of the lead screw 124 and the output shaft of the drive motor 122, and the two pulleys 123 are connected by belt drive. A bracket 128 is also fixed to the outside of the slide seat 125. The upper end of the bracket 128 is slidably connected to the storage rack 127. The storage rack 127 is inserted into the top of the mounting frame 121. The size of the upper end face of the bracket 128 is smaller than the size of the bottom opening of the storage rack 127. The storage rack 127 is U-shaped and has through openings around its perimeter.

[0068] By adopting the above technical solution, the unloading and transfer assembly 11 places the mobile phone back cover into the bracket 128 in the storage rack 127. The drive motor 122 drives the lead screw 124 to rotate through the cooperation of the belt and pulley 123. The slide 125 slides down along the guide rail 126 so that more mobile phone back covers can be stored. When the mobile phone back covers are full, the storage rack 127 can be pulled out from above the mounting frame 121, which facilitates the collective transfer of mobile phone back covers.

[0069] The working principle of this invention is as follows: During use, the feeding component 2 feeds the phone back cover, and the feeding and transfer component 1 transfers the phone back cover to the temporary storage rotating stage 3. The temporary storage rotating stage 3 rotates 90 degrees, turning the vertical phone back cover into a horizontal position. Then, the feeding and transfer component 1 transfers the phone back cover to the phone back cover carrier 5 on the rotating stage 4. Under the rotation of the rotating stage 4, the phone back cover rotates to a position below the blower dust collector 6, where the blower dust collector 6 blows air to remove dust from the phone back cover. After dust removal, the phone back cover continues to rotate to a position below the phone back cover multi-angle detection mechanism 7, where the phone back cover is inspected from multiple angles to ensure that its appearance and dimensions at each angle meet the requirements. After the inspection is completed, the phone back cover rotates with the rotating stage 4 to a position below the CCD plane detection mechanism 8, where the CCD plane detection mechanism 8 performs precise inspection of the plane of the phone back cover to check for any plane defects, scratches, or other problems.

[0070] Next, the phone back cover continues to rotate to the back cover film application mechanism 9, which will apply a protective film to the phone back cover to protect the surface of the back cover and prevent it from being scratched during subsequent assembly and use.

[0071] After the screen protector is applied, the phone back cover is rotated into the working range of the unloading and transfer assembly 11. The unloading and transfer assembly 11 transfers the qualified phone back covers from the phone back cover carrier 5 on the rotary table 4 to the storage assembly 12 for storage, so that they can be used in subsequent assembly of the whole device. Phone back covers that fail the inspection or need to be re-inspected are placed in the special storage assembly 12.

[0072] The entire testing process, through the continuous rotation of the rotary table 4 and the orderly coordination of various testing and processing mechanisms, realizes continuous testing and processing of the phone back cover, greatly improving testing efficiency and accuracy, ensuring the quality of the phone back cover, and thus providing strong support for the assembly precision, appearance quality, structural strength, and safety of the whole device.

[0073] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0074] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A continuous detection device for mobile phone back covers, characterized in that: It includes a rotating table (4), which is installed on the chassis (10); a feeding assembly (2) is fixed on one side of the chassis (10); a feeding transfer assembly (1) is also installed on the feeding assembly (2); a temporary storage rotating table (3) is provided below the middle position of the feeding transfer assembly (1), which is fixed on one side of the chassis (10); The rotating platform (4) has multiple mobile phone back cover carriers (5) arranged in a ring array at its upper end; a blower dust collector (6), a mobile phone back cover multi-angle detection mechanism (7), a CCD plane detection mechanism (8), a back cover film application mechanism (9), a material unloading and transfer assembly (11), and a material storage assembly (12) are arranged around the rotating platform (4). The loading assembly (2) includes a frame body (21), with a slide rail (22) fixed on the top of the frame body (21). A tray transfer platform (23) slides on each slide rail (22), and the two tray transfer platforms (23) clamp and slide the mobile phone back cover tray (24). The bottom of one end of the tray transfer platform (23) near the back plate (27) is also riveted to the chain (212) by a drive piece (214). The chain (212) is arranged in an L-shape after being closed, and is installed on the outside of the back plate (27) in cooperation with multiple sprockets (213). The frame body (21) is provided with multiple shelves, which divide the frame body (21) into two chambers. One chamber is equipped with a feeding linear module (28), and the other chamber is equipped with a discharging linear module (220). A pallet carrier (221) is installed on the discharging linear module (220). The drive unit of the feeding linear module (28) is fixed with a support plate (25); the bottom of the support plate (25) is provided with multiple guide posts (217) and is slidably connected to the sliding frame (26); the two sides of the sliding frame (26) are slidably connected to the profile slide (29); the profile slide (29) is fixed to the inside of the back plate (27); the sliding frame (26) is riveted to the chain (212) by Z-shaped connecting piece (211); The pallet transfer platform (23) includes an L-shaped bottom shell (231), and a sliding clamp (232) is slidably connected to the upper end of the bottom shell (231); a return spring (234) is also provided between the sliding clamp (232) and the bottom shell (231); a cover plate (233) for protecting the return spring (234) is also bolted to the top of the bottom shell (231). The sliding clamp (232) has a C-shaped groove on the side that contacts the mobile phone back cover tray (24); The bottom shell (231) of the two pallet transfer platforms (23) is fixedly connected on one side by a C-shaped connecting rod (236); The sliding clamp (232) is also integrally provided with a wedge block (235) on the side near the back cover tray (24) of the mobile phone; the wedge block (235) is located above the C-shaped groove; A stop (218) is fixed above one end of the unloading linear module (220) on the frame body (21). At both ends of the stop (218) are arc-shaped blocks (219) for forcing the two pallet transfer tables (23) to slide.

2. The continuous detection device for mobile phone back covers according to claim 1, characterized in that: T-shaped rods (215) are fixed on both sides of the bottom of the tray (25), and the T-shaped rods (215) are slidably connected to the sliding frame (26); a spring (216) is also sleeved on the T-shaped rods (215), and the spring (216) is located below the sliding frame (26).

3. The continuous detection device for mobile phone back covers according to claim 1, characterized in that: The loading and transfer assembly (1) includes a lead screw linear module (101); the lead screw linear module (101) is fixed to the machine housing (10) by a bracket, wherein a sliding carrier (102) is fixed on the drive part of the lead screw linear module (101); a first negative pressure suction head (103) and a second negative pressure suction head (104) are installed on the sliding carrier (102).

4. The continuous detection device for mobile phone back covers according to claim 1, characterized in that: The back cover film application mechanism (9) includes a Z-axis drive module (93); the bottom of the Z-axis drive module (93) is fixed to the chassis (10) by a bracket; an X-axis drive module (91) is installed on the Z-axis drive module (93); the drive part of the X-axis drive module (91) is fitted with the Z-axis drive module (93); the drive part of the Z-axis drive module (93) is fitted with a negative pressure material handling component. The chassis (10) is also fixed with a worktable (96); the worktable (96) is provided with a film application mechanism (95), and a placement platform (94) is provided on one side of the film application mechanism (95).

5. The continuous detection device for mobile phone back covers according to claim 1, characterized in that: The storage components (12) are provided in four parts, two of which are finished product storage mechanisms, one is a non-conforming product storage mechanism, and the other is a non-determined product storage mechanism; all four storage components (12) are composed of the same structure.

6. The continuous detection device for mobile phone back covers according to claim 5, characterized in that: The storage assembly (12) includes a mounting frame (121), on one side of which a drive motor (122) is fixed, and on the other side are two guide rails (126). A slide block (125) is slidably connected to the two guide rails (126). The slide block (125) is connected to a lead screw (124). The two ends of the lead screw (124) are installed in conjunction with the mounting frame (121) through bearing seats. A bracket (128) is also fixed to the outside of the slide block (125). The upper end of the bracket (128) is slidably connected to the storage rack (127). The storage rack (127) is inserted into the top of the mounting frame (121). The storage rack (127) is U-shaped and has through openings around its perimeter.

7. The continuous detection device for mobile phone back covers according to claim 1, characterized in that: The mobile phone back cover multi-angle detection mechanism (7) includes a stand (71), on the inner side of which a screw drive module (72) is fixed, and an adjustment frame (73) is installed on the drive part of the screw drive module (72); an installation frame (74) is fixed on the outer side of the adjustment frame (73), and a hanging seat (75) is fixed on the bottom side of the mounting frame (74) respectively; a vertical slide rail (76) is fixed on the inner side of each hanging seat (75) by countersunk bolts; an adjustable slide block (77) is slidably connected on the vertical slide rail (76) and locked by bolts; an L-shaped frame (78) is fixed on the inner side of the adjustable slide block (77); a CCD camera (79) is fixed on the L-shaped frame (78) by bolts.

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