A notebook copper screw detection device
By designing a copper screw inspection device for laptops, the problem of component damage caused by unsuitable copper screw lengths was solved through inspection and screening structures. This ensures the safety and stability of laptop assembly, guarantees the quality of copper screws, and prevents iron screws from being mixed in.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI SHINY ELECTRONIC TECH CO LTD
- Filing Date
- 2023-10-20
- Publication Date
- 2026-06-05
AI Technical Summary
During laptop assembly, improperly sized copper screws can damage components, especially when they are too long or too short to fit the threaded holes, affecting installation stability and safety.
A copper screw inspection device for laptops was designed, including a work box, a top box, a ring-shaped electric slide rail, a carrier plate, an inclined top block, and a lifting structure. The device detects the length of copper screws and filters out excessively long screws to avoid damaging laptop components. At the same time, it uses a magnetic feeding structure to separate iron screws to ensure the quality of copper screws.
Effective detection and screening of excessively long copper screws reduces component damage, ensures safety and stability during laptop assembly, minimizes economic losses, and prevents iron screws from being mixed in and affecting assembly quality.
Smart Images

Figure CN117629121B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of notebook screw processing technology, specifically to a notebook copper screw inspection device. Background Technology
[0002] A laptop computer, also known as a portable computer, handheld computer, or lap computer, is characterized by its small size. More portable than a desktop computer, it is a small, easily portable personal computer that typically weighs 1-3 kilograms.
[0003] When assembling a laptop, copper screws are typically used to secure the motherboard, graphics card, and hard drive inside the laptop because copper screws have better rust resistance. However, the length of the copper screws at each location needs to be controlled during the assembly of laptop components. For example, the copper screws at the screen and motherboard. If the copper screws are too long, the ends of the screws can easily protrude through the threaded holes and press against the screen or motherboard, causing damage to the screen or motherboard. If the copper screws are too short, the copper screws will not be able to mate with the threads of the threaded holes, and the copper screws can easily fall out of the threaded holes, thus affecting the installation of the components.
[0004] Currently, the common practice in processing copper screws is to cut copper rods to a fixed length and then thread the cut copper rods. However, various situations can arise during the processing, such as the cut copper rods being too long or long copper screws from other locations getting mixed in, which can damage laptop components during installation. Summary of the Invention
[0005] The purpose of this invention is to provide a device for inspecting copper screws in laptops, so as to solve the problems mentioned in the background art.
[0006] To solve the above technical problems, the present invention provides the following technical solution, including a working box and a top box. The top of the working box has a working cavity. An annular electric slide rail is installed on the side wall of the working cavity. Multiple sliders are slidably installed on the annular electric slide rail. Each slider has a carrying plate fixedly installed on it. A placement hole is opened through the carrying plate. A copper screw can pass through the placement hole. The diameter of the copper screw is smaller than the inner diameter of the placement hole.
[0007] The inner wall of the working chamber is equipped with an inclined top block, and the bottom end of the copper screw can slide and engage with the inclined surface of the inclined top block.
[0008] The top box is fixedly installed on the top surface of the working box. The bottom surface of the top box has a cleaning chamber that communicates with the working chamber. A lifting structure is installed in the cleaning chamber, which can pull out the copper screw from the placement hole.
[0009] Preferably, the lifting structure includes two conveyor belts and two inclined blocks; the two inclined blocks are symmetrically installed on the inner walls of both sides of the impurity removal chamber, with a gap between them, the gap being greater than the diameter of the copper screw and less than the diameter of the nut on the copper screw, and a gap between the inclined blocks and the carrying plate; the two conveyor belts are symmetrically installed on the inner walls of both sides of the impurity removal chamber, the conveyor belts being installed downstream of the inclined blocks, and a gap between the two conveyor belts, the gap being greater than the diameter of the copper screw and less than the diameter of the nut on the copper screw.
[0010] Preferably, the working section of the conveyor belt is divided into an inclined section and a horizontal section, the inclination angle of the conveyor belt is 30°, the lowest point of the inclined section of the conveyor belt is behind the inclined block, and the horizontal section of the conveyor belt is connected to the highest point of the inclined section of the conveyor belt.
[0011] Preferably, the outer circumferential surface of the conveyor belt is fixedly connected to an anti-slip block. When the anti-slip block is on the inclined section of the conveyor belt, the angle between the outer circumferential surface of the conveyor belt and the anti-slip block is α, and the range of α is 130°-150°.
[0012] Preferably, the bottom of the working box is provided with a feeding trough communicating with the working chamber. A partition is installed in the feeding trough, which can divide the feeding trough into iron screw feeding chambers and copper screw feeding chambers arranged on the left and right. A partition is installed on the top of the iron screw feeding chamber, and a feeding port is opened on the partition. A sealing structure that can block the feeding port is installed in the feeding port. A magnetic feeding structure is installed in the iron screw feeding chamber.
[0013] Preferably, the sealing structure includes an anti-drop plate, which is rotatably installed inside the feed inlet via a rotating shaft, and a torsion spring is fitted on the rotating shaft of the anti-drop plate.
[0014] Preferably, the magnetic feeding structure includes a pneumatic rod, an electromagnet block, a rotating component, and a power connection assembly; the electromagnet block is located directly below the feeding port, the pneumatic rod is rotatably mounted on the side of the partition near the iron screw feeding chamber, the electromagnet block is fixedly mounted on the output shaft of the pneumatic rod, the rotating component allows the pneumatic rod to tilt towards the iron screw feeding chamber, and the power connection assembly is used to supply power to the electromagnet block.
[0015] Preferably, the rotating component includes a second torsion spring; the gas rod is rotatably mounted on the side of the partition via a rotating shaft, and the second torsion spring is fitted onto the rotating shaft of the gas rod.
[0016] Preferably, the power connection assembly includes a power supply spring and a side block; the power supply spring is fixedly connected to one side wall of the partition near the iron screw feeding chamber, and the side block is fixedly connected to one side of the electromagnet block near the partition, with the side block and the power supply spring slidingly engaged.
[0017] Preferably, a sliding shaft is fixedly connected to the side of the output shaft of the electromagnet block, a side panel is fixedly connected to the side of the partition, and an annular guide groove that mates with the sliding shaft groove is provided on one side of the side panel.
[0018] Compared with the prior art, the beneficial effects of the present invention are:
[0019] This invention, through the design of a work box, top box, circular electric slide rail, carrying plate, inclined top block, and lifting structure, can detect the length of copper screws, identify and filter out excessively long copper screws, and reduce the risk of damage to the display screen or motherboard during laptop assembly. This ensures that damage to components is minimized during computer assembly, thus reducing economic losses caused by component damage. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0021] Figure 2 This is a side sectional view of the present invention;
[0022] Figure 3 This is a schematic diagram of the conveyor belt and anti-slip block in this invention;
[0023] Figure 4 This is a cross-sectional view of the magnetic feeding structure in this invention;
[0024] Figure 5 This is a schematic diagram showing the position of the annular guide groove in this invention;
[0025] Figure 6 This is a schematic diagram of the side block structure in this invention.
[0026] In the diagram: 1. Working box; 2. Top box; 3. Circular electric slide rail; 4. Carrying plate; 5. Placement hole; 6. Inclined top block; 7. Conveyor belt; 8. Inclined block; 9. Anti-slip block; 10. Partition plate; 11. Iron screw feeding chamber; 12. Copper screw feeding chamber; 13. Anti-drop plate; 14. Pneumatic rod; 15. Electromagnet block; 16. Torsion spring No. 2; 17. Power supply end spring; 18. Side block; 19. Circular guide chute. Implementation
[0027] 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.
[0028] Please see Figure 1-6 As shown, this embodiment provides a notebook computer copper screw testing device, including a working box 1 and a top box 2. The top of the working box 1 has a working cavity, and a ring-shaped electric slide rail 3 is installed on the side wall of the working cavity. Multiple sliders are slidably mounted on the ring-shaped electric slide rail 3, and each slider has a fixed mounting plate 4. A placement hole 5 is formed through the mounting plate 4, allowing the copper screw to pass through the placement hole 5. The diameter of the copper screw is smaller than the inner diameter of the placement hole 5, while the diameter of the nut on the copper screw is larger than the inner diameter of the placement hole 5. The ring-shaped electric slide rail 3 drives the multiple mounting plates 4 to move as follows... Figure 2 As shown in the circular motion, when the carrier plate 4 is in a horizontal state on the circular electric slide rail 3, and the carrier plate 4 is at the highest position of the circular electric slide rail 3, the copper screw can be inserted into the placement hole 5 on the carrier plate 4, and the nut of the copper screw abuts against the carrier plate 4 and cannot fall off.
[0029] The inner wall of the working chamber is equipped with a sloping top block 6. The bottom end of the copper screw can slide and engage with the sloping surface of the sloping top block 6. When a copper screw longer than the standard is being conveyed, the copper screw moves with the carrying plate 4. When it passes the sloping top block 6, the bottom end of the copper screw abuts against the sloping surface of the sloping top block 6. As the copper screw moves, the bottom end of the copper screw slides and engages with the sloping surface of the sloping top block 6. As the sloping surface on the sloping top block 6 rises, the sloping top block 6 lifts the copper screw. When the copper screw is lifted...
[0030] The top box 2 is fixedly installed on the top surface of the working box 1. The bottom surface of the top box 2 has a cleaning chamber communicating with the working chamber. A lifting structure is installed inside the cleaning chamber, which can pull the copper screw out from the placement hole 5. The lifting structure includes two conveyor belts 7 and two inclined blocks 8. The two inclined blocks 8 are symmetrically installed on the inner walls of both sides of the cleaning chamber, with a gap between them. This gap is larger than the diameter of the copper screw but smaller than the diameter of the nut on the copper screw. There is also a gap between the inclined blocks 8 and the carrying plate 4. The two conveyor belts 7 are symmetrically installed on the inner walls of both sides of the cleaning chamber, downstream of the inclined blocks 8. A gap exists between the two conveyor belts 7, which is larger than the diameter of the copper screw but smaller than the diameter of the nut on the copper screw. The gap between the two inclined blocks 8 is the same as the gap between the two conveyor belts 7. When the nut on the copper screw is lifted, the copper screw will enter the gap between the two inclined blocks. The nut on the copper screw is located above the two inclined blocks 8 until the carrier plate 4 moves the lifted copper screw into the gap between the conveyor belts 7. When the nut on the copper screw contacts the inclined section of the conveyor belt 7, the inclined section of the conveyor belt 7 drives the copper screw to tilt upward, causing the copper screw to tilt up and down and be pulled out from the placement hole 5. Then, the two conveyor belts 7 move at the same speed to transport the copper nut away. This can detect and screen out excessively long copper screws, preventing long copper screws from damaging the motherboard, display screen, etc.
[0031] The working section of conveyor belt 7 is divided into an inclined section and a horizontal section. The inclination angle of conveyor belt 7 is 30°. The lowest point of the inclined section of conveyor belt 7 is located behind the inclined block 8, and the horizontal section of conveyor belt 7 is connected to the highest point of the inclined section. Assume the inclination angle of the inclined section of conveyor belt 7 is c, c = 30°, the speed of the annular electric slide rail 2 is S, and the speed of conveyor belt 7 is D. This ensures that the horizontal movement speed of the copper screw on the inclined section of the conveyor belt 7 is the same as the movement speed of the circular electric slide rail 2, ensuring that there is no speed difference between the copper screw and the carrying plate 4, and preventing the copper screw and the carrying plate 4 from getting stuck due to speed difference.
[0032] An anti-slip block 9 is fixedly connected to the outer circumferential surface of the conveyor belt 7. When the anti-slip block 9 is on the inclined section of the conveyor belt 7, the angle between the outer circumferential surface of the conveyor belt 7 and the anti-slip block 9 is α, and the range of α is 130°-150°.
[0033] When the nut on the copper screw abuts against the inclined section of the conveyor belt 7, the nut of the copper screw rests on the top surface of the anti-slip block 9, which can reduce slippage between the bottom surface of the copper screw and the top surface of the anti-slip block 9. The cutting conveyor belt 7 can tilt the copper screw upward for transport and pull it out of the placement hole 5.
[0034] Due to the nature of their material, iron screws are less rust-resistant than copper screws. During laptop assembly, iron screws need to be separated to prevent them from being mixed in. Because laptop screws are relatively small, it's possible for iron screws to get mixed with copper screws during processing and transportation.
[0035] The bottom of the working box 1 is provided with a feeding trough that communicates with the working chamber. A partition 10 is installed in the feeding trough. The partition 10 can divide the feeding trough into iron screw feeding chamber 11 and copper screw feeding chamber 12 arranged on the left and right. When the copper screw passes through the copper screw feeding chamber 12, the copper screw falls into the copper screw feeding chamber 12 due to gravity.
[0036] A partition plate is installed on the top of the screw feeding chamber 11, and a feeding port is opened on the partition plate. When the carrying plate 4 moves in a circular motion with the annular electric slide rail 2, the feeding port is located directly below the movement trajectory of the placement hole 5 on the carrying plate 4. The feeding port is equipped with a sealing structure that can block the feeding port. The sealing structure includes an anti-drop plate 13, which is rotatably installed in the feeding port via a rotating shaft, and a torsion spring is fitted on the rotating shaft of the anti-drop plate 13.
[0037] like Figure 2 , Figure 4 , Figure 5As shown, there are two anti-drop plates 13, both of which are rotatably installed inside the feed inlet. The anti-drop plates 13 are designed to open like door panels, and can only rotate to a horizontal position to ensure the transport of the copper screws. After the length of the copper screws is checked, the copper screws are then rotated by the operation of the annular electric slide rail 2, causing the carrying plate 4 and the copper screws to rotate until the nut on the copper screw is facing downwards.
[0038] A magnetic feeding structure is installed inside the screw feeding chamber 11. The magnetic feeding structure includes a pneumatic rod 14, an electromagnet block 15, a rotating component, and a power connection assembly. The electromagnet block 15 is located directly below the feeding port. The pneumatic rod 14 is rotatably mounted on the side of the partition 10 near the screw feeding chamber 11. The electromagnet block 15 is fixedly mounted on the output shaft of the pneumatic rod 14. The rotating component allows the pneumatic rod 14 to tilt towards the screw feeding chamber 11. The power connection assembly is used to supply power to the electromagnet block 15.
[0039] The rotating component includes a second torsion spring 16; the gas spring 14 is rotatably mounted on the side of the partition 10 via a rotating shaft, and the second torsion spring 16 is fitted onto the rotating shaft of the gas spring 14. The power connection assembly includes a power end spring 17 and a side block 18; the power end spring 17 is connected to an external power source, and a copper strip is fixedly mounted on the side of the side block 18. A power line is connected between the copper strip and the electromagnet block 15. When the side block 18 is in a vertical position, the side block 18 abuts against the power end spring 17, which ensures that the electromagnet block 15 is energized. The power end spring 17 has a U-shaped structure to ensure that the power end spring 17 can always abut against the copper strip of the side block 18. In addition, the opening of the power line spring 17 is arranged downwards to reduce the jamming between the copper strip and the power line spring 17 when the side block 18 slides downwards.
[0040] A power supply spring 17 is fixedly connected to the side wall of the partition 10 near the iron screw feeding chamber 11. A side block 18 is fixedly connected to the side of the electromagnet block 15 near the partition 10, and the side block 18 slides in cooperation with the power supply spring 17. A sliding shaft is fixedly connected to the side of the output shaft of the electromagnet block 15. A side panel is fixedly connected to the side of the partition 10, and an annular guide groove 19 that mates with the sliding shaft groove is provided on one side of the side panel. The time it takes for the sliding shaft to slide one revolution in the annular guide groove 19 is the same as the time it takes for the carrier plate 4 to move between two adjacent carrier plates 4, ensuring that the electromagnet block 15 can perform material detection on each screw passing above the feeding port, preventing iron screws from being mixed in.
[0041] like Figure 5As shown, the rotation point between the air rod 14 and the partition 10, the highest point of the annular guide rail 19, and the connection point of the arc segment and the inclined segment of the annular guide rail 19 form a triangle. The angle at the connection point of the arc segment and the inclined segment of the annular guide rail 19 in this triangle is 'b', and it must be ensured that 'b' is not less than 90°. It is ensured that the distance between the angle 'b' and the rotation point between the air rod 14 and the partition 10 of the entire annular guide rail 19 is one of the minimum segments. When the output shaft of the air rod 14 extends, it is ensured that the sliding shaft on the output shaft of the air rod 14 can move upward along the inclined segment of the annular guide rail 19, keeping the air rod 14 in a vertical state.
[0042] When the load plate 4 moves the screw to the discharge port, the nut on the screw abuts against the anti-drop plate 13. When the screw is an iron screw, the electromagnet block 15 generates a magnetic force on the iron screw, causing the iron screw to have a downward force. The iron screw generates a downward force on the anti-drop plate 13, causing the anti-drop plate 13 to rotate downward and open. At the same time, the pneumatic rod 14 works to drive the electromagnet block 15 to descend. The electromagnet block 15 attracts the iron screw and descends synchronously. The sliding shaft on the output shaft of the pneumatic rod 14 slides downward in the annular guide groove 19. When the sliding shaft slides to the arc segment, Under the action of the second torsion spring 16, the gas rod 14 tilts to the side, the electromagnet block 15 drives the iron screw to tilt to the side, and the side block 18 pushes the iron screw to the side. As the gas rod 14 rotates, the gas rod 14 drives the electromagnet block 15 to rotate synchronously, and the electromagnet block 15 drives the side block 18 to rotate synchronously, so that the side block 18 is disconnected from the power supply end spring 17, the circuit of the electromagnet block 15 is broken, the electromagnet block 15 is not subject to magnetic attraction, and the iron screw falls off the electromagnet block 15, ensuring that a large number of iron screws are not magnetically attracted to the electromagnet block 15.
[0043] When the sliding shaft slides to the end of the arc segment, the pneumatic rod 14 works, the output shaft of the pneumatic rod 14 extends, and the sliding shaft slides along the inclined section of the annular guide groove 19. As the sliding shaft moves, the position of the pneumatic rod 14 gradually becomes vertical. When the pneumatic rod 14 is in a vertical state, it will drive the electromagnet block 15 and the side block 18 to rotate synchronously and be in a vertical state. When the side block 18 is in a vertical state, the copper strip on the side of the side block 18 will abut against the power supply end spring 17, so that the electromagnet block 15 is in a energized state.
[0044] When testing copper screws on a laptop in actual operation, the copper screws are inserted into the placement holes 5 on the carrier plate 4. When the copper screws pass the inclined top block 6, the excessively long copper screws are lifted up. The two conveyor belts 7 pull the lifted copper screws out of the placement holes 5 on the carrier plate 4 and screen them out and send them away.
[0045] When a copper screw of normal length is conveyed by the carrier plate 4 to a position with the nut facing down, the nut on the copper screw slides against the top surface of the partition plate to the top surface of the anti-drop plate 13 in the feed port. When an iron screw is mixed in, the electromagnet block 15 magnetically attracts the iron screw, causing the iron screw to fall down and push open the anti-drop plate 13, where it is magnetically attracted to the electromagnet block 15. Then, the pneumatic rod 14 works to lower the electromagnet block 15 and the magnetically attracted iron screw. Then, the second torsion spring 16 drives the pneumatic rod 14 to tilt the iron screw. At this time, the electromagnet block 15 is de-energized, and the iron screw falls to the side, preventing the iron screw from being magnetically attracted to the electromagnet block 15. Then, as the output shaft of the pneumatic rod 14 extends, the pneumatic rod 14 returns to a vertical position, so that the electromagnet block 15 is energized and then reciprocates to magnetically attract the iron screw.
[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for inspecting copper screws in laptops, characterized in that, Includes a working box (1) and a top box (2). The working box (1) has a working cavity on its top. The side wall of the working cavity is equipped with an annular electric slide rail (3). Multiple sliders are slidably installed on the annular electric slide rail (3). Each slider is fixedly equipped with a carrying plate (4). The carrying plate (4) has a through hole (5). A copper screw can pass through the placement hole (5). The diameter of the copper screw is smaller than the inner diameter of the placement hole (5). The inner wall of the working chamber is equipped with a sloping top block (6), and the bottom end of the copper screw can slide and engage with the sloping surface of the sloping top block (6). The top box (2) is fixedly installed on the top surface of the working box (1). The bottom surface of the top box (2) is provided with a cleaning chamber that communicates with the working chamber. A lifting structure is installed in the cleaning chamber. The lifting structure can pull out the copper screw from the placement hole (5). The lifting structure includes two conveyor belts (7) and two inclined blocks (8); the two inclined blocks (8) are symmetrically installed on the inner walls of both sides of the impurity removal chamber, and there is a gap between the two inclined blocks (8), which is greater than the diameter of the copper screw and less than the diameter of the nut on the copper screw, and there is a gap between the inclined blocks (8) and the carrying plate (4); the two conveyor belts (7) are symmetrically installed on the inner walls of both sides of the impurity removal chamber, and the conveyor belts (7) are installed downstream of the inclined blocks (8), and there is a gap between the two conveyor belts (7), which is greater than the diameter of the copper screw and less than the diameter of the nut on the copper screw; The bottom of the working box (1) is provided with a feeding trough that communicates with the working chamber. A partition (10) is installed in the feeding trough. The partition (10) can divide the feeding trough into iron screw feeding chamber (11) and copper screw feeding chamber (12) arranged on the left and right. A partition is installed on the top of the iron screw feeding chamber (11). A feeding port is opened on the partition. A sealing structure that can block the feeding port is installed on the feeding port. A magnetic feeding structure is installed in the iron screw feeding chamber (11). The magnetic feeding structure includes a pneumatic rod (14), an electromagnet block (15), a rotating component, and a power connection assembly. The electromagnet block (15) is located directly below the feeding port. The pneumatic rod (14) is rotatably mounted on the side of the partition plate (10) near the iron screw feeding chamber (11). The electromagnet block (15) is fixedly mounted on the output shaft of the pneumatic rod (14). The rotating component allows the pneumatic rod (14) to tilt into the iron screw feeding chamber (11). The power connection assembly is used to supply power to the electromagnet block (15).
2. The notebook copper screw testing device according to claim 1, characterized in that, The working section of the conveyor belt (7) is divided into an inclined section and a horizontal section. The inclination angle of the conveyor belt (7) is 30°. The lowest position of the inclined section of the conveyor belt (7) is behind the inclined block (8). The horizontal section of the conveyor belt (7) is connected to the highest end of the inclined section of the conveyor belt (7).
3. The notebook copper screw testing device according to claim 2, characterized in that, The outer circumferential surface of the conveyor belt (7) is fixedly connected to an anti-slip block (9). When the anti-slip block (9) is on the inclined section of the conveyor belt (7), the angle between the outer circumferential surface of the conveyor belt (7) and the anti-slip block (9) is α, and the range of α is 130°-150°.
4. The notebook copper screw testing device according to claim 1, characterized in that, The sealing structure includes an anti-drop plate (13), which is rotatably installed in the feed port via a rotating shaft, and a torsion spring is fitted on the rotating shaft of the anti-drop plate (13).
5. The notebook copper screw testing device according to claim 1, characterized in that, The rotating component includes a second torsion spring (16); the air rod (14) is rotatably mounted on the side of the partition (10) via a rotating shaft, and the second torsion spring (16) is fitted onto the rotating shaft of the air rod (14).
6. The notebook copper screw testing device according to claim 1, characterized in that, The power connection assembly includes a power end spring (17) and a side block (18); the power end spring (17) is fixedly connected to the side wall of the partition (10) near the iron screw feeding chamber (11), and the side block (18) is fixedly connected to the side of the electromagnet block (15) near the partition (10), and the side block (18) and the power end spring (17) are slidably engaged.
7. The notebook copper screw testing device according to claim 6, characterized in that, The output shaft of the electromagnet block (15) is fixedly connected to a sliding shaft, and the side panel is fixedly connected to the side of the partition (10). An annular guide groove (19) that cooperates with the sliding shaft groove is provided on one side of the side panel.