Mobile phone back cover flash area detection fixture

Abstract

This utility model discloses a mobile phone back cover flash area detection fixture, including a worktable. The top surface of the worktable has a recessed accommodating groove for placing mobile phone back covers. The bottom of the accommodating groove has a raised placement boss for stacking mobile phone back covers. There is a gap between the placement boss and the inner wall of the accommodating groove. An infrared light detection light source with its luminous surface facing upward is installed on the top surface of the rear end of the placement boss. The luminous surface of the infrared light detection light source is lower than or flush with the top surface of the placement boss. The rear side of the worktable has a recessed groove that communicates with the accommodating groove. An infrared light sensor is installed in the recessed groove, located outside the infrared light detection light source. The detection end of the infrared light sensor faces the infrared light detection light source. An alarm and a controller are provided outside the worktable. The output end of the infrared light sensor is electrically connected to the input end of the controller, and the output end of the controller is connected to the alarm. Compared with the prior art, this fixture can sort mobile phone back covers more accurately.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone back cover manufacturing technology, and in particular to a fixture for detecting the flashing area of ​​mobile phone back covers. Background Technology

[0002] Mobile phone back covers typically consist of a cover body and a thin, folded edge. The cover body has a strip-shaped structure, with the thin folded edge bending backwards on the sides. To avoid interference from the flash, a light-shielding element is added around the back of the phone's back cover in front of the camera lens at the flash area. This ensures that the user's eyes are not too glared when using the flash to increase ambient light, protecting their vision. Generally, the light-shielding element is first applied to the flash area of ​​the back cover before the phone is placed on the assembly line. The next operator picks up the phone back cover from the assembly line to check if the light-shielding element has been applied. After inspection, the phone back cover is placed back on the line for the next process. However, after the light-shielding element is applied, manual inspection is required. Because the light-shielding element is generally small, manual visual inspection is prone to eye fatigue, making it difficult for operators to accurately distinguish whether a phone back cover has a light-shielding element applied.

[0003] In view of this, the inventors of this case conducted in-depth research on the problem, which led to the creation of this case. Utility Model Content

[0004] The purpose of this utility model is to provide a fixture for detecting the flash area of ​​a mobile phone back cover, so as to solve the problem that the existing mobile phone back cover uses manual visual identification to distinguish whether a light-shielding component is attached, which makes it impossible to accurately distinguish whether a light-shielding component is attached.

[0005] To achieve its purpose, this utility model adopts the following technical solution:

[0006] A mobile phone back cover flash area detection fixture includes a worktable. The top surface of the worktable has a recessed accommodating groove for placing the mobile phone back cover. With the length direction of the accommodating groove as the front-back direction, a placement boss is raised on the bottom of the accommodating groove for stacking the mobile phone back covers. There is a gap between the placement boss and the inner wall of the accommodating groove. An infrared light detection light source with its emitting surface facing upward is installed on the top surface of the rear end of the placement boss. The emitting surface of the infrared light detection light source is lower than or flush with the top surface of the placement boss. The rear side of the worktable has a recessed groove that communicates with the accommodating groove. An infrared light sensor is installed in the recessed groove, located outside the rear side of the infrared light detection light source. The detection end of the infrared light sensor faces the infrared light detection light source. An alarm and a controller are provided outside the worktable. The output end of the infrared light sensor is electrically connected to the input end of the controller, and the output end of the controller is connected to the alarm.

[0007] The workbench is made of bakelite board.

[0008] The accommodating groove is a strip-shaped square structure extending in the front-back direction, and the top surface of the boss is lower than the top surface of the worktable.

[0009] The rear top surface of the placement boss is recessed with a through mounting hole running vertically through it. An infrared light detection light source is installed in the through mounting hole with its emitting surface facing upwards and its top surface within the range of the through mounting hole. The detection end of the infrared light sensor faces forward and is higher than the top surface of the placement boss.

[0010] The worktable has recesses on the left and right inner walls of the receiving groove, and a silicone block that extends into the receiving groove is provided in the groove.

[0011] The top surface of the workbench has recessed grooves at both the left and right ends that extend through and are connected to the receiving groove. The bottom of the grooves is flush with the bottom of the receiving groove.

[0012] This novel mobile phone back cover flashing area detection fixture, when in use, places the mobile phone back cover in the corresponding receiving groove, with the flashing area of ​​the back cover corresponding to the infrared light detection light source. The infrared light detection light source emits infrared light, activating the infrared light sensor. The infrared light sensor collects the brightness of the infrared light emitted from the flashing area of ​​the mobile phone back cover and feeds the collected brightness back to the controller. The controller determines whether to activate the alarm. If there is no light-shielding part at the flashing area of ​​the mobile phone back cover, the alarm will sound, alerting the worker, who will then manually remove the mobile phone back cover from the receiving groove for further sorting. Compared with existing technologies, no manual visual inspection is required. The alarm triggers human alertness, and mobile phone back covers without light-shielding parts are then sorted separately. The alarm is easy to detect, has high sensitivity, is less tiring, and allows for more accurate sorting of mobile phone back covers. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0014] To further explain the technical solution of this utility model, a detailed description is provided below in conjunction with the accompanying drawings.

[0015] Mobile phone back cover flash area detection fixture, such as Figure 1As shown, the device includes a workbench 1, which is made of bakelite board. The top surface of the workbench 1 has a recessed groove for placing a mobile phone back cover. With the length of the groove as the front-to-back direction, a placement boss 11 protrudes from the bottom of the groove for stacking mobile phone back covers. There is a gap between the placement boss 11 and the inner wall of the groove. Specifically, the groove is a strip-shaped square structure extending in the front-to-back direction. The top surface of the placement boss 11 is lower than the top surface of the workbench 1. The outer wall of the placement boss 11 and the inner wall of the groove form a placement space for placing the mobile phone back cover. In application, the mobile phone back covers are stacked in the placement space, with the cover body of the back cover pressing against the top surface of the placement boss 11, and the thin folded edge of the back cover extending into the gap.

[0016] An infrared light detection light source 2 with its luminous surface facing upwards is installed on the top surface of the rear end of the placement boss 11. The luminous surface of the infrared light detection light source 2 is lower than or flush with the top surface of the placement boss 11. A recessed groove communicating with the receiving groove is provided on the rear side of the worktable 1. An infrared light sensor 3 located outside the rear side of the infrared light detection light source 2 is installed in the recessed groove, with the detection end of the infrared light sensor 3 facing the infrared light detection light source 2. Specifically, a through-hole is provided on the top surface of the rear end of the placement boss 11, and the infrared light detection light source 2 is installed in the through-hole, for example... An infrared light source 2 is glued to the inner wall of the mounting through hole, with its emitting surface facing upwards and its top surface within the mounting through hole. A first connecting line 21 extending beyond the worktable 1 is electrically connected to the bottom surface of the infrared light source 2. A recessed groove extends through the worktable 1, and an infrared light sensor 3 extends into the recessed groove, with its detection end facing forward. The front detection end of the infrared light sensor 3 is higher than the top surface of the mounting boss. A second connecting line 31 extending beyond the recessed groove is electrically connected to the rear end of the infrared light sensor 3. In application, the infrared light source 2 is electrically activated via the first connecting line 21, and the infrared light sensor 3 is electrically activated via the second connecting line 31. The infrared light source 2 illuminates upwards beyond the flashing area of ​​the phone's back cover, and the infrared light sensor 3 can detect the brightness of the infrared light emitted from the flashing area of ​​the phone's back cover.

[0017] The workbench 1 is externally equipped with an alarm 4, a controller, and a power supply battery (not shown in the figure). The output terminal of the infrared light sensor 3 is electrically connected to the input terminal of the controller, and the output terminal of the controller is controlled by the alarm 4. Specifically, the controller, infrared light detection light source 2, infrared light sensor 3, and alarm 4 are all electrically connected to the power supply battery, and a loop is formed between the controller, infrared light detection light source 2, infrared light sensor 3, alarm 4, and power supply battery. That is, the first connecting line 21 is connected to the power supply battery, the power supply terminal of the second connecting line 22 is connected to the power supply battery, and the output terminal of the second connecting line 22 is electrically connected to the input terminal of the controller. The power supply battery supplies power to each component, the way the infrared light detection light source 2 emits light, the way the infrared light sensor 3 collects brightness values ​​and sends them to the controller, the way the external light sensor 3 displays the collected brightness values, and the way the controller controls whether the alarm 4 sounds are all technologies known to those skilled in the art, and will not be elaborated here. In application, the power supply battery provides power to the controller, infrared light detection light source 2, infrared light sensor 3, and alarm 4. Infrared light detection source 2 emits infrared light through a power source, and infrared light sensor 3 collects the brightness value. If there is a light shield in the flashing area of ​​the phone's back cover, the infrared light sensor 3 displays a brightness value range of 0-60dB. If there is no light shield in the flashing area of ​​the phone's back cover, the infrared light sensor 3 displays a brightness value range of 60-500dB. The controller determines which range the brightness value falls within and decides whether to control alarm 4 to sound an alarm. If there is no light shield in the flashing area of ​​the phone's back cover, the alarm will sound, alerting the workers.

[0018] This novel mobile phone back cover flashing area detection fixture, when applied, involves placing the mobile phone back cover in the corresponding receiving groove. The flashing area of ​​the mobile phone back cover corresponds to the infrared light detection light source 2. The infrared light detection light source 2 emits infrared light, activating the infrared light sensor 3. The infrared light sensor collects the brightness of the infrared light emitted from the flashing area of ​​the mobile phone back cover and feeds the collected brightness back to the controller. The controller determines whether to activate the alarm. If there is no light-shielding component at the flashing area of ​​the mobile phone back cover, the alarm will sound, alerting the workers. The mobile phone back cover is then manually removed from the receiving groove for further sorting. Compared with existing technologies, no manual visual inspection is required. The alarm triggers human alertness, and mobile phone back covers without light-shielding components are then sorted separately. The alarm is easily noticed, has high sensitivity, is less tiring, and allows for more accurate sorting of mobile phone back covers.

[0019] In this novel design, an advantage is that the worktable 1 has recessed grooves on both the left and right inner walls of the receiving groove. Each groove contains a silicone block 5 that partially extends into the receiving groove. Furthermore, both the left and right inner walls of the receiving groove have two grooves, meaning a total of four silicone blocks 5 are provided. The phone back cover is clamped between these four silicone blocks 5. During application, the phone back cover is clamped by the silicone blocks 4, preventing it from easily loosening during testing. Moreover, the silicone blocks are elastic and will not scratch the phone back cover.

[0020] In this invention, an advantage is that the top surface of the workbench 1 has recessed extension grooves 100 at both its left and right ends, which are through-holes and connected to the receiving groove. The bottom of the extension grooves 100 is flush with the bottom of the receiving groove, meaning there are two extension grooves 100, located on the left and right sides of the receiving groove, respectively. In use, fingers can be inserted into the two extension grooves 100, facilitating the removal of the phone's back cover.

[0021] In this invention, a preferred feature is that the back cover of the mobile phone has a mounting hole for mounting the mobile phone camera, and the rear top surface of the placement boss 11 has a protrusion 6 corresponding to the position of the mounting hole, which is embedded in the mounting through hole. In application, when placing the back cover of the mobile phone, aligning the mounting through hole with the protrusion 6 allows the back cover of the mobile phone to be quickly aligned and placed in the receiving groove.

[0022] The product form of this utility model is not limited to the illustrations and embodiments in this case. Any appropriate changes or modifications made to it based on similar ideas should be considered as not departing from the patent scope of this utility model.

Claims

1. A fixture for detecting the flash area on the back cover of a mobile phone, characterized in that: The device includes a workbench with a recessed groove on its top surface for placing a mobile phone back cover. A placement boss protrudes from the bottom of the groove, allowing the mobile phone back covers to be stacked. There is a gap between the placement boss and the inner wall of the groove. An infrared light source with its luminous surface facing upwards is mounted on the top surface of the rear end of the placement boss. The luminous surface of the infrared light source is either lower than or flush with the top surface of the placement boss. A recessed groove connected to the recessed groove is located on the rear side of the workbench. An infrared light sensor, positioned behind the infrared light source, is installed in the recessed groove, with its detection end facing the infrared light source. An alarm and a controller are located outside the workbench. The output of the infrared light sensor is electrically connected to the input of the controller, and the output of the controller is connected to the alarm.

2. The mobile phone back cover flash area detection fixture according to claim 1, characterized in that: The workbench is made of bakelite board.

3. The mobile phone back cover flash area detection fixture according to claim 2, characterized in that: The accommodating groove is a strip-shaped square structure extending in the front-back direction, and the top surface of the boss is lower than the top surface of the worktable.

4. The mobile phone back cover flash area detection fixture according to claim 1, characterized in that: The rear top surface of the placement boss is recessed with a through mounting hole running vertically through it. An infrared light detection light source is installed in the through mounting hole with its emitting surface facing upwards and its top surface within the range of the through mounting hole. The detection end of the infrared light sensor faces forward and is higher than the top surface of the placement boss.

5. The mobile phone back cover flash area detection fixture according to claim 1, characterized in that: The worktable has recesses on the left and right inner walls of the receiving groove, and a silicone block that extends into the receiving groove is provided in the groove.

6. The mobile phone back cover flash area detection fixture according to claim 1, characterized in that: The top surface of the workbench has recessed grooves at both the left and right ends that extend through and are connected to the receiving groove. The bottom of the grooves is flush with the bottom of the receiving groove.

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