A defect detection device for mobile phone screen cover and use method thereof

Abstract

The present invention relates to the technical field of defect detection of mobile phone screen cover plates, and discloses a defect detection device for mobile phone screen cover plates and a method of using the same, including a device body, and a plurality of supporting legs fixedly connected to the bottom of the device body. When the present invention uses the mobile phone screen cover plate detection device, the mobile phone cover plate is first placed inside a blanking trough on a feed plate, and then a push handle is pushed, and the push handle drives the feed plate on the connecting rod to enter the inside of the device body, and then the feed plate drives a sliding block on a linkage rod to slide along the inside of the feed trough, and the sliding block drives a rack to slide along the rack, and the rack drives the rotating shaft at the central axis of the gear to rotate, and the rotation of the rotating shaft drives the cleaning shaft at one end of the transmission belt to rotate, and the cleaning shaft drives the cleaning head at the bottom to rotate, and the cleaning head drives a plurality of rubber scrapers at the bottom to clean the surface of the mobile phone cover plate, thereby avoiding the influence of foreign matter on the surface of the mobile phone cover plate on the detection.

Description

Technical Field

[0001] The present invention relates to the technical field of defect detection equipment for mobile phone screen cover plates, and specifically to a defect detection device for mobile phone screen cover plates and a method for using the same. Background Art

[0002] Whether the mobile phone screen cover has cracks, flaws, light leakage or other defects is the key to detecting the quality of the mobile phone. The conventional verification method for OEM manufacturers after the mobile phone screen cover materials are received is to randomly draw a certain number of materials for product verification; judge whether the product meets the conditions of use based on the proportion of the drawn quantity. Although this greatly reduces the influx of unqualified products, some of them will slip through the net and fall into the next production link. This result will inevitably cause the appearance of unqualified products, resulting in product rework, waste of working hours, and increased corporate costs. Therefore, ensuring the pass rate of mobile phone screen covers is the top priority of mobile phone OEM companies.

[0003] Most of the mobile phone screen cover plate detection devices under the existing technology can detect whether there are cracks, convex points and defects on the cover plate. However, when the detection device is detecting the mobile phone screen, foreign matter is often adhered to the mobile phone screen cover plate. If the mobile phone cover plate screen is not cleaned before detection, the detection device can easily mistake the foreign matter on the mobile phone screen cover plate as a convex point defect, thereby mistakenly eliminating qualified products, which often greatly increases production costs. Summary of the invention

[0004] The purpose of the present invention is to provide a defect detection device for a mobile phone screen cover and a method of using the same to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a defect detection device for a mobile phone screen cover and a method for using the same, comprising a device body, a plurality of supporting legs fixedly connected to the bottom of the device body, a blanking window provided on the device body, a feed trough provided inside the device body, a blanking plate fixedly connected to the bottom of the device body, and further comprising:

[0007] The feeding mechanism includes a plurality of feeding plates slidably connected to the inside of the feeding trough, a feeding trough is provided directly above the feeding plates, a mobile phone cover is provided inside the feeding trough, a connecting rod is rotatably connected to the side wall of the feeding plate, and a pushing handle is rotatably connected to the end of the connecting rod away from the feeding plate.

[0008] Furthermore, a transmission mechanism is provided on the feed plate, and the transmission mechanism includes a linkage rod rotatably connected to the side wall of the feed plate, and the end of the linkage rod away from the feed plate is rotatably connected to a sliding block 1, and the sliding block 1 slides inside the feed trough. A plurality of sliding grooves are provided inside the equipment body, and a rack is fixedly connected just above the sliding block 1, and the rack slides inside the sliding groove. A rotating shaft is rotatably connected inside the equipment body, and a gear is fixedly connected to the end of the rotating shaft away from the equipment body, and the gear is meshed with the rack, and a transmission belt is connected to the rotating shaft for transmission.

[0009] Furthermore, a cleaning mechanism is arranged inside the device body, and the cleaning mechanism includes a cleaning shaft rotatably connected inside the device body, a plurality of limit grooves are opened on the cleaning shaft, a cleaning head is slidably connected inside the limit groove, and an extrusion spring is fixedly connected to the top of the cleaning head.

[0010] Furthermore, the cleaning mechanism also includes a limit block fixedly connected to the end of the cleaning shaft away from the device body, a second extrusion spring is fixedly connected to the inside of the cleaning head, and a plurality of rubber scrapers are fixedly connected to the bottom of the cleaning head.

[0011] Furthermore, a protrusion blocking mechanism is arranged inside the device body, and the protrusion blocking mechanism includes a slide groove rod fixedly connected to the inner wall of the device body, and a sliding block 2 is slidably connected inside the slide groove rod. The end of the sliding block 2 away from the inner wall of the slide groove rod is fixedly connected to a push rod 1, and a reset spring is sleeved on the push rod 1.

[0012] Furthermore, the raised blocking mechanism also includes a blocking strip fixedly connected to the end of the push rod 1 away from the sliding block 2, a pressing rod is rotatably connected directly below the sliding block 2, and a clamping plate is rotatably connected to the end of the pressing rod away from the sliding block 2, and the clamping plate is slidably connected to the cleaning shaft.

[0013] Furthermore, a stripping mechanism is provided inside the feed plate, and the stripping mechanism includes a plurality of special-shaped extrusion grooves opened inside the main body of the equipment, the middle part of the linkage rod is rotatably connected with an extrusion column, a stripping groove is provided on the feed plate, and a push plate is slidably connected inside the stripping groove, one side of the push plate is in contact with the mobile phone cover, and a push rod 2 is fixedly connected to a side of the push plate away from the mobile phone cover, a telescopic spring is sleeved on the push rod 2, and a reminder plate is fixedly connected to the end of the push rod 2 away from the push plate.

[0014] The method for using the defect detection device for a mobile phone screen cover comprises the following steps:

[0015] S1: Install the cover plate and place the mobile phone cover plate inside the drop slot on the feed plate;

[0016] S2: Cleaning the cover plate, by pushing the feeding mechanism to drive the cleaning shaft in the transmission mechanism to rotate, and the cleaning shaft rotates to drive the rubber scraper at the bottom of the cleaning head to clean the surface of the cover plate;

[0017] S3: Cover plate convex point detection. When the mobile phone cover plate with convex points moves to the blocking bar in the convex blocking mechanism, the blocking bar drives the sliding block 2 on the push rod 1 to slide along the inside of the slide groove rod. The sliding block 2 drives the pressing rod to press the pressing plate downward to increase the pressure of the cleaning head on the mobile phone cover plate. At this time, the resistance of the blocking bar and the friction of the rubber scraper on the mobile phone cover plate make the mobile phone cover plate slide on the feed plate.

[0018] S4: Screening covers. When a qualified mobile phone cover is encountered, the mobile phone cover on the feed plate will fall onto the blanking plate along the bottom of the blanking window. When a mobile phone cover with convex points is detected, the mobile phone cover pushes the reminder plate on the second push rod at one end of the push plate to slide. At this time, the reminder plate contacts the operator's hand to remind the operator that the mobile phone cover is unqualified.

[0019] The present invention has the following beneficial effects:

[0020] (1) When the mobile phone screen cover plate detection device is used, the mobile phone cover plate is first placed inside the blanking groove on the feed plate, and then the push handle is pushed, and the push handle drives the feed plate on the connecting rod to enter the inside of the device body, and then the feed plate drives the sliding block 1 on the linkage rod to slide along the inside of the feed groove, and the sliding block 1 drives the rack to slide along the rack, and the rack drives the rotating shaft at the central axis of the gear to rotate, and the rotation of the rotating shaft drives the cleaning shaft at one end of the transmission belt to rotate, and the cleaning shaft drives the cleaning head at the bottom to rotate, and the cleaning head drives several rubber scrapers at the bottom to clean the surface of the mobile phone cover plate, thereby avoiding the influence of foreign matter on the surface of the mobile phone cover plate on the detection, on the one hand, improving the detection accuracy of the device, and on the other hand, cleaning the surface of the mobile phone cover plate, saving resources for later cleaning of the surface of the mobile phone cover plate.

[0021] (2) The present invention provides a cleaning mechanism. When the surface of the mobile phone cover contacts the blocking bar in the raised blocking mechanism, the mobile phone cover slides along the bottom of the blocking bar. At this time, the friction force generated between the mobile phone cover and the blocking bar drives the blocking bar to move along the direction of movement of the mobile phone cover. The movement of the blocking bar drives the sliding block 2 at one end of the return spring to slide along the inside of the slide groove rod. At this time, the sliding block 2 drives the clamping plate at one end of the pressing rod to slide downward along the cleaning shaft. The clamping plate squeezes the limiting groove, so that the pressure of the cleaning head directly below the limiting groove increases. At this time, the pressure between the rubber scraper at the bottom of the cleaning head and the surface of the mobile phone cover increases. This arrangement is conducive to enhancing the friction between the rubber scraper and the surface of the mobile phone cover, thereby enhancing the cleaning effect of the rubber scraper on the surface of the mobile phone cover.

[0022] (3) The present invention provides a raised blocking mechanism. When the mobile phone cover with the raised point moves to the blocking bar in the raised blocking mechanism, the blocking bar contacts the raised part on the surface of the mobile phone cover, and the blocking bar prevents the mobile phone cover from sliding forward. At this time, the feed plate continues to slide forward, and the mobile phone cover squeezes the push plate on the feed plate, so that the push plate slides along the stripping groove inside the feed plate, and the push plate pushes the reminder plate at one end of the push rod 2 to slide backward. When the reminder plate contacts the operator's hand on the push handle, the operator can promptly determine that the mobile phone cover is unqualified; when the blocking bar drives the sliding block 2 on the push rod 1 to slide along the inside of the slide groove rod, the sliding block 2 drives the pressing rod to press the pressing plate downward to increase the pressure of the cleaning head on the mobile phone cover. At this time, the resistance of the blocking bar and the friction of the rubber scraper on the mobile phone cover make the mobile phone cover slide on the feed plate. This arrangement is conducive to preventing the blocking bar from separating from the raised point on the surface of the mobile phone cover, thereby reducing the error rate of the detection device.

[0023] (4) The present invention provides a stripping mechanism. When a qualified mobile phone cover is encountered, the handle is pushed to drive the feed plate on the connecting rod to enter the interior of the device body. At this time, the feed plate drives the sliding block on the linkage rod to slide along the inside of the feed slot. The linkage rod drives the upper extrusion column to slide along the special-shaped extrusion slot. Under the extrusion action of the special-shaped extrusion slot, the extrusion column drives the linkage rod and the connecting rod at the bottom to retract outward. At this time, the linkage rod and the connecting rod retract the two sides of the feed plate at the bottom of the mobile phone cover. When the feed plate moves to the blanking window inside the blanking window, the feed plate at the bottom of the mobile phone cover is completely retracted. This arrangement is conducive to the mobile phone cover on the feed plate to slide smoothly through the blanking window to the blanking plate, thereby more easily distinguishing qualified mobile phone covers from unqualified mobile phone covers.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the transmission mechanism structure of the present invention;

[0029] Figure 4 For the present invention Figure 3 A magnified view of middle;

[0030] Figure 5 It is a schematic diagram of the structure of the stripping mechanism of the present invention;

[0031] Figure 6 This is a schematic diagram of the cleaning mechanism structure of the present invention;

[0032] Figure 7 For the present invention Figure 6 Enlarged view of middle B;

[0033] Figure 8 For the present invention Figure 6 Enlarged view of middle C;

[0034] Fig. 9 The figure is a flow chart of the method for using the present invention.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] In the figure: 1. Equipment body; 11. Support legs; 12. Dropping window; 13. Feeding slot; 14. Dropping plate; 2. Feeding mechanism; 201. Feeding plate; 202. Dropping slot; 203. Mobile phone cover; 204. Connecting rod; 205. Push handle; 3. Transmission mechanism; 301. Linkage rod; 302. Sliding block 1; 303. Sliding slot; 304. Rack; 305. Gear; 306. Rotating shaft; 307. Transmission belt; 4. Cleaning mechanism; 401. Cleaning shaft; 402. Limiting slot; 40 3. Cleaning head; 404. Extrusion spring 1; 405. Limiting block; 406. Extrusion spring 2; 407. Rubber scraper; 5. Raised blocking mechanism; 501. Slide rod; 502. Slide block 2; 503. Push rod 1; 504. Reset spring; 505. Blocking bar; 506. Pressing rod; 507. Pressing plate; 6. Stripping mechanism; 601. Special-shaped extrusion groove; 602. Extrusion column; 603. Stripping groove; 604. Pushing plate; 605. Pushing rod 2; 606. Telescopic spring; 607. Reminder plate. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1, please refer to Figure 1-Figure 7As shown, the present invention is a defect detection device for a mobile phone screen cover and a method for using the same, comprising a device body 1, a plurality of support legs 11 fixedly connected to the bottom of the device body 1, a blanking window 12 provided on the device body 1, a feed trough 13 provided inside the device body 1, a blanking plate 14 fixedly connected to the bottom of the device body 1, and further comprising:

[0039] The feeding mechanism 2 includes a plurality of feeding plates 201 slidably connected to the inside of the feeding trough 13, a feeding trough 202 is provided just above the feeding plate 201, a mobile phone cover 203 is provided inside the feeding trough 202, a connecting rod 204 is rotatably connected to the side wall of the feeding plate 201, and a pushing handle 205 is rotatably connected to the end of the connecting rod 204 away from the feeding plate 201. The function of this component is to first place the mobile phone cover 203 inside the feeding trough 202 on the feeding plate 201, and then push the pushing handle 205, and the pushing handle 205 drives the feeding plate 201 on the connecting rod 204 to enter the inside of the equipment body 1.

[0040] A transmission mechanism 3 is provided on the feed plate 201, and the transmission mechanism 3 includes a linkage rod 301 rotatably connected to the side wall of the feed plate 201, and the end of the linkage rod 301 away from the feed plate 201 is rotatably connected to a sliding block 302, and the sliding block 302 slides inside the feed trough 13. A plurality of sliding grooves 303 are opened inside the equipment body 1, and a rack 304 is fixedly connected just above the sliding block 302, and the rack 304 slides inside the sliding groove 303. A rotating shaft 306 is rotatably connected inside the equipment body 1, and a gear 305 is fixedly connected to the end of the rotating shaft 306 away from the equipment body 1, and the gear 305 is meshed with the rack 304, and a transmission belt 307 is connected to the rotating shaft 306 for transmission.

[0041] A cleaning mechanism 4 is arranged inside the device body 1, and the cleaning mechanism 4 includes a cleaning shaft 401 rotatably connected inside the device body 1, and a plurality of limiting grooves 402 are opened on the cleaning shaft 401, and a cleaning head 403 is slidably connected inside the limiting groove 402, and an extrusion spring 404 is fixedly connected to the top of the cleaning head 403.

[0042] The cleaning mechanism 4 also includes a limit block 405 fixedly connected to the end of the cleaning shaft 401 away from the device body 1, a second extrusion spring 406 is fixedly connected to the inside of the cleaning head 403, and a plurality of rubber scrapers 407 are fixedly connected to the bottom of the cleaning head 403. The function of this component is that the feed plate 201 drives the sliding block 1 302 on the linkage rod 301 to slide along the inside of the feed trough 13, the sliding block 1 302 drives the rack 304 to slide along the rack 304, and the rack 304 drives the rotating shaft at the central axis of the gear 305 306 rotates, and the rotation of the rotating shaft 306 drives the cleaning shaft 401 at one end of the transmission belt 307 to rotate, and the cleaning shaft 401 drives the cleaning head 403 at the bottom to rotate, and the cleaning head 403 drives several rubber scrapers 407 at the bottom to clean the surface of the mobile phone cover 203, thereby avoiding the influence of foreign matter contaminated on the surface of the mobile phone cover 203 on the detection, on the one hand, improving the detection accuracy of the device, and on the other hand, cleaning the surface of the mobile phone cover 203, saving resources for the later cleaning of the surface of the mobile phone cover 203.

[0043] Embodiment 2 is different from Embodiment 1 in that: Figure 1-Figure 9 As shown, a protrusion blocking mechanism 5 is arranged inside the device body 1, and the protrusion blocking mechanism 5 includes a slide rod 501 fixedly connected to the inner wall of the device body 1, and a sliding block 2 502 is slidably connected inside the slide rod 501, and one end of the sliding block 2 502 away from the inner wall of the slide rod 501 is fixedly connected to a push rod 1 503, and a reset spring 504 is sleeved on the push rod 1 503.

[0044] The raised blocking mechanism 5 also includes a blocking bar 505 fixedly connected to the end of the push rod 1 503 away from the sliding block 2 502, and a pressing rod 506 is rotatably connected to the lower part of the sliding block 502, and a pressing plate 507 is rotatably connected to the end of the pressing rod 506 away from the sliding block 2 502, and the pressing plate 507 is slidably connected to the cleaning shaft 401. The function of this component is to set the raised blocking mechanism 5. When the mobile phone cover 203 with a raised point moves to the blocking bar 505 in the raised blocking mechanism 5, the blocking bar 505 contacts the raised part on the surface of the mobile phone cover 203, and the blocking bar 505 prevents the mobile phone cover 203 from sliding forward. At this time, the feed plate 201 continues to slide forward, and the mobile phone cover 203 squeezes the push plate 604 on the feed plate 201, so that the push plate 604 moves along the stripping groove 6 inside the feed plate 201 03 slides, the pushing plate 604 pushes the reminder plate 607 at one end of the pushing rod 205 to slide backwards, and when the reminder plate 607 contacts the operator's hand on the pushing handle 205, the operator can promptly determine that the mobile phone cover 203 is unqualified, and when the blocking bar 505 drives the sliding block 2 502 on the pushing rod 1 503 to slide along the inside of the slide groove rod 501, the sliding block 2 502 drives the pressing rod 506 to press down the clamping plate 507 to increase the pressure of the cleaning head 403 on the mobile phone cover 203. At this time, the resistance of the blocking bar 505 and the friction of the rubber scraper 407 on the mobile phone cover 203 are combined, so that the mobile phone cover 203 slides on the feeding plate 201. This arrangement is conducive to preventing the blocking bar 505 from detaching from the convex points on the surface of the mobile phone cover 203, thereby reducing the error rate of the detection device.

[0045] A stripping mechanism 6 is provided inside the feed plate 201, and the stripping mechanism 6 includes a plurality of special-shaped extrusion grooves 601 provided inside the device body 1, an extrusion column 602 is rotatably connected to the middle part of the linkage rod 301, a stripping groove 603 is provided on the feed plate 201, and a push plate 604 is slidably connected inside the stripping groove 603, one side of the push plate 604 is in contact with the mobile phone cover plate 203, and a push rod 2 605 is fixedly connected to the side of the push plate 604 away from the mobile phone cover plate 203, and a telescopic spring 606 is sleeved on the push rod 205, and a reminder plate 607 is fixedly connected to the end of the push rod 205 away from the push plate 604. The function of this component is to set the stripping mechanism 6, and when a qualified mobile phone cover plate 203 is encountered, the push handle 205 drives the feed plate 201 on the connecting rod 204 to enter the inside of the device body 1. At this time The feed plate 201 drives the sliding block 302 on the linkage rod 301 to slide along the inside of the feed groove 13, and the linkage rod 301 drives the extrusion column 602 above to slide along the special-shaped extrusion groove 601. Under the extrusion action of the special-shaped extrusion groove 601, the extrusion column 602 drives the linkage rod 301 and the connecting rod 204 at the bottom to retract outward. At this time, the linkage rod 301 and the connecting rod 204 retract the two sides of the feed plate 201 at the bottom of the mobile phone cover 203. When the feed plate 201 moves the blanking window 12 inside the blanking window 12, the feed plate 201 at the bottom of the mobile phone cover 203 is completely retracted. This arrangement is conducive to the mobile phone cover 203 on the feed plate 201 to slide smoothly through the blanking window 12 to the blanking plate 14, thereby more easily distinguishing qualified mobile phone covers 203 from unqualified mobile phone covers 203.

[0046] The method for using the defect detection device for a mobile phone screen cover comprises the following steps:

[0047] S1: Install the cover plate, and place the mobile phone cover plate 203 inside the blanking groove 202 on the feed plate 201;

[0048] S2: Cleaning the cover plate, by pushing the feeding mechanism 2, driving the cleaning shaft 401 in the transmission mechanism 3 to rotate, and the cleaning shaft 401 rotates to drive the rubber scraper 407 at the bottom of the cleaning head 403 to clean the surface of the cover plate;

[0049] S3: detection of raised points on the cover plate. When the mobile phone cover plate 203 with raised points moves to the blocking bar 505 in the raised blocking mechanism 5, the blocking bar 505 drives the sliding block 2 502 on the pushing rod 1 503 to slide along the inside of the slide groove rod 501. The sliding block 2 502 drives the pressing rod 506 to press down the pressing plate 507 to increase the pressure of the cleaning head 403 on the mobile phone cover plate 203. At this time, the resistance of the blocking bar 505 and the friction of the rubber scraper 407 on the mobile phone cover plate 203 make the mobile phone cover plate 203 slide on the feed plate 201.

[0050] S4: Screening covers. When a qualified mobile phone cover 203 is encountered, the mobile phone cover 203 on the feed plate 201 will fall onto the blanking plate 14 along the bottom of the blanking window 12. When a mobile phone cover 203 with convex points is detected, the mobile phone cover 203 pushes the reminder plate 607 on the second rod 605 at one end of the push plate 604 to slide. At this time, the reminder plate 607 contacts the operator's hand to remind the operator that the mobile phone cover 203 is unqualified.

[0051] A specific application of this embodiment is:

[0052] When using the mobile phone screen cover detection device, first put the mobile phone cover 203 inside the blanking groove 202 on the feeding plate 201, then push the pushing handle 205, and the pushing handle 205 drives the feeding plate 201 on the connecting rod 204 to enter the inside of the device body 1, and then the feeding plate 201 drives the sliding block 1302 on the linkage rod 301 to slide along the inside of the feeding groove 13, and the sliding block 1302 drives the rack 304 to slide along the rack 304, and the rack 304 drives the rotating shaft 306 at the axis of the gear 305 to rotate, and the rotation of the rotating shaft 306 drives the cleaning shaft 401 at one end of the transmission belt 307 to rotate, and the cleaning shaft 401 drives the cleaning head 403 at the bottom to rotate, and the cleaning head 403 drives the several rubber scrapers 407 at the bottom to clean the surface of the mobile phone cover 203, so as to avoid the influence of foreign matter on the surface of the mobile phone cover 203 on the detection, on the one hand, it improves the detection accuracy of the device, and on the other hand, it cleans the surface of the mobile phone cover 203, which is convenient for the later mobile phone cover 2 03 Surface cleaning saves resources; by setting the cleaning mechanism 4, when the surface of the mobile phone cover 203 contacts the blocking bar 505 in the raised blocking mechanism 5, the mobile phone cover 203 slides along the bottom of the blocking bar 505. At this time, the friction force generated between the mobile phone cover 203 and the blocking bar 505 drives the blocking bar 505 to move along the direction of movement of the mobile phone cover 203. The movement of the blocking bar 505 drives the sliding block 2 502 at one end of the return spring 504 to slide along the inside of the slide groove rod 501. At this time, the sliding The second block 502 drives the pressing plate 507 at one end of the pressing rod 506 to slide downward along the cleaning shaft 401, and the pressing plate 507 squeezes the limiting groove 402, so that the pressure of the cleaning head 403 directly below the limiting groove 402 increases. At this time, the pressure between the rubber scraper 407 at the bottom of the cleaning head 403 and the surface of the mobile phone cover 203 increases. This arrangement is conducive to enhancing the friction between the rubber scraper 407 and the surface of the mobile phone cover 203, thereby enhancing the cleaning effect of the rubber scraper 407 on the surface of the mobile phone cover 203;

[0053] In addition, by setting the raised blocking mechanism 5, when the mobile phone cover 203 with the raised points moves to the blocking bar 505 in the raised blocking mechanism 5, the blocking bar 505 contacts the raised part on the surface of the mobile phone cover 203, and the blocking bar 505 prevents the mobile phone cover 203 from sliding forward. At this time, the feed plate 201 continues to slide forward, and the mobile phone cover 203 squeezes the push plate 604 on the feed plate 201, so that the push plate 604 slides along the stripping groove 603 inside the feed plate 201, and the push plate 604 pushes the reminder plate 607 at one end of the push rod 205 to slide backward. When the reminder plate 607 touches the operator's hand on the pushing handle 205, the operator can promptly determine that the mobile phone cover 203 is unqualified; when the blocking bar 505 drives the sliding block 202 on the pushing rod 1 503 to slide along the inside of the slide groove rod 501, the sliding block 202 drives the pressing rod 506 to press the pressing plate 507 downward to increase the pressure of the cleaning head 403 on the mobile phone cover 203. At this time, the resistance of the blocking bar 505 and the friction of the rubber scraper 407 on the mobile phone cover 203 make the mobile phone cover 203 on the feed plate 201 This arrangement helps to prevent the blocking strip 505 from being separated from the convex points on the surface of the mobile phone cover 203, thereby reducing the error rate of the detection device; by setting the stripping mechanism 6, when a qualified mobile phone cover 203 is encountered, the handle 205 is pushed to drive the feed plate 201 on the connecting rod 204 to enter the interior of the device body 1, and at this time, the feed plate 201 drives the sliding block 302 on the linkage rod 301 to slide along the inside of the feed groove 13, and the linkage rod 301 drives the upper extrusion column 602 to slide along the special-shaped extrusion groove 601, and under the extrusion action of the special-shaped extrusion groove 601, the extrusion column 602 is pressed. The column 602 drives the linkage rod 301 and the connecting rod 204 at the bottom to retract outwards. At this time, the linkage rod 301 and the connecting rod 204 retract the two sides of the feed plate 201 at the bottom of the mobile phone cover 203. When the feed plate 201 moves the blanking window 12 inside the blanking window 12, the feed plate 201 at the bottom of the mobile phone cover 203 is completely retracted. This arrangement is conducive to the mobile phone cover 203 on the feed plate 201 to slide smoothly through the blanking window 12 to the blanking plate 14, thereby more easily distinguishing qualified mobile phone covers 203 from unqualified mobile phone covers 203.

[0054] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A defect detection device for a mobile phone screen cover, comprising a device body (1), a plurality of support legs (11) being fixedly connected to the bottom of the device body (1), a blanking window (12) being provided on the device body (1), a feed trough (13) being provided inside the device body (1), and a blanking plate (14) being fixedly connected to the bottom of the device body (1), characterized in that: Also includes: A feeding mechanism (2), the feeding mechanism (2) comprising a plurality of feeding plates (201) slidably connected to the inside of a feeding trough (13), a feeding trough (202) being provided just above the feeding plates (201), a mobile phone cover plate (203) being provided inside the feeding trough (202), a connecting rod (204) being rotatably connected to the side wall of the feeding plate (201), and a pushing handle (205) being rotatably connected to one end of the connecting rod (204) away from the feeding plate (201); The feed plate (201) is provided with a transmission mechanism (3), the transmission mechanism (3) comprising a linkage rod (301) rotatably connected to a side wall of the feed plate (201), the end of the linkage rod (301) away from the feed plate (201) is rotatably connected to a sliding block (302), the sliding block (302) slides inside the feed trough (13), a plurality of sliding grooves (303) are provided inside the device body (1), a rack (304) is fixedly connected just above the sliding block (302), the rack (304) slides inside the sliding groove (303), a rotating shaft (306) is rotatably connected inside the device body (1), the end of the rotating shaft (306) away from the device body (1) is fixedly connected to a gear (305), the gear (305) meshes with the gear (304), and a transmission belt (307) is transmission-connected to the rotating shaft (306); A cleaning mechanism (4) is arranged inside the device body (1), and the cleaning mechanism (4) comprises a cleaning shaft (401) rotatably connected inside the device body (1), a plurality of limiting grooves (402) are formed on the cleaning shaft (401), a cleaning head (403) is slidably connected inside the limiting groove (402), and a pressing spring (404) is fixedly connected to the top of the cleaning head (403); The cleaning mechanism (4) further comprises a limit block (405) fixedly connected to the end of the cleaning shaft (401) away from the device body (1); a second squeezing spring (406) is fixedly connected inside the cleaning head (403); and a plurality of rubber scrapers (407) are fixedly connected to the bottom of the cleaning head (403); A protrusion blocking mechanism (5) is arranged inside the device body (1), and the protrusion blocking mechanism (5) comprises a slide groove rod (501) fixedly connected to the inner wall of the device body (1), a second sliding block (502) is slidably connected inside the slide groove rod (501), and a push rod (503) is fixedly connected to one end of the second sliding block (502) away from the inner wall of the slide groove rod (501), and a return spring (504) is sleeved on the push rod (503); The raised blocking mechanism (5) further comprises a blocking bar (505) fixedly connected to the end of the push rod 1 (503) away from the sliding block 2 (502); a pressing rod (506) is rotatably connected directly below the sliding block 2 (502); and a pressing plate (507) is rotatably connected to the end of the pressing rod (506) away from the sliding block 2 (502); the pressing plate (507) is slidably connected to the cleaning shaft (401).

2. A defect detection device for a mobile phone screen cover according to claim 1, characterized in that: A stripping mechanism (6) is arranged inside the feed plate (201), and the stripping mechanism (6) comprises a plurality of special-shaped extrusion grooves (601) provided inside the device body (1); the middle part of the linkage rod (301) is rotatably connected to an extrusion column (602); a stripping groove (603) is arranged on the feed plate (201); a push plate (604) is slidably connected inside the stripping groove (603); one side of the push plate (604) contacts the mobile phone cover plate (203); a side of the push plate (604) away from the mobile phone cover plate (203) is fixedly connected to a second push rod (605); a telescopic spring (606) is sleeved on the second push rod (605); and one end of the second push rod (605) away from the push plate (604) is fixedly connected to a reminder plate (607).

3. A method for using a defect detection device for a mobile phone screen cover, using the defect detection device for a mobile phone screen cover as claimed in claim 2, characterized in that: It includes the following steps: S1: Install the cover plate, and place the mobile phone cover plate (203) inside the drop groove (202) on the feed plate (201); S2: cleaning the cover plate by pushing the feeding mechanism (2) to drive the cleaning shaft (401) in the transmission mechanism (3) to rotate, and the cleaning shaft (401) rotates to drive the rubber scraper (407) at the bottom of the cleaning head (403) to clean the surface of the cover plate; S3: detection of raised points on the cover plate. When the mobile phone cover plate (203) with raised points moves to the blocking bar (505) in the raised blocking mechanism (5), the blocking bar (505) drives the sliding block (502) on the pushing rod (503) to slide along the inside of the slide groove rod (501). The sliding block (502) drives the pressing rod (506) to press down the pressing plate (507) to increase the pressure of the cleaning head (403) on the mobile phone cover plate (203). At this time, the resistance of the blocking bar (505) and the friction force of the rubber scraper (407) on the mobile phone cover plate (203) are combined to make the mobile phone cover plate (203) slide on the feed plate (201); S4: Screening the cover plates. When a qualified mobile phone cover plate (203) is encountered, the mobile phone cover plate (203) on the feed plate (201) will fall onto the blanking plate (14) along the bottom of the blanking window (12). When a mobile phone cover plate (203) with a convex point is detected, the mobile phone cover plate (203) pushes the reminder plate (607) on the second push rod (605) at one end of the push plate (604) to slide. At this time, the reminder plate (607) contacts the operator's hand to remind the operator that the mobile phone cover plate (203) is unqualified.

Images