Plastic product metal nut detector
By designing a metal nut detector for plastic products in electronic plastic product inspection, and using metal induction probes and integrated relays, the problem of inaccurate alarms of photosensitive coupling components under different light conditions is solved, fast and comprehensive detection is achieved, and the need for manual alarm processing is reduced.
Patent Information
- Application Number
- CN202421778689.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-26
AI Technical Summary
In the inspection of existing electronic plastic products, the photosensitive coupling component (CCD) is different during the day and at night and the robotic movements interfere with the illumination of LED lights, resulting in inaccurate alarms and requires manual release, which increases the detection risk and inefficiency.
A metal nut detector for plastic products is designed, using metal induction probes and integrated relays to distinguish good products from bad products through PLC signal transmission, reducing the risk of manual full inspection and missed inspection.
It realizes rapid and comprehensive inspection of metal nuts in plastic products, reduces the need for manual alarm processing, and improves detection efficiency and accuracy.
Smart Images

Figure CN222919120U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electronic plastic product detection, in particular to a metal nut detector for plastic products. Background Art
[0002] During the production and processing of electronic plastic products, metal nuts need to be installed in the plastic products. Later, the metal nuts in the plastic products need to be tested to see if they are good products. Electronic plastic products are usually tested with photosensitive coupling components, which are referred to as CCD. CCD captures images through the lens and outputs them to PLC. However, the light is different during the day and at night. Although there is LED light to illuminate the fill light, the robot is always in motion, which will interfere with the illumination of the LED light. If the CCD alarm is not cleared by a technician, the CCD will continue to alarm.
[0003] Therefore, it is necessary to propose a metal nut detector for plastic products. Utility Model Content
[0004] The purpose of the utility model is to provide a metal nut detector for plastic products to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A metal nut detector for plastic products, comprising a bottom plate, a support rod and a top plate, wherein the bottom of the support rod is connected to the bottom plate, and the top of the support rod is connected to the top plate by screws, and a detection mechanism is arranged inside the bottom plate and the top plate, and the detection mechanism facilitates rapid detection of metal nuts in plastic products;
[0007] The detection mechanism comprises an integrated relay and a transformer power supply, and the integrated relay and the transformer power supply are respectively installed on the upper end of the bottom plate.
[0008] In a preferred embodiment of the utility model, the top plate is respectively provided with sliding hole 1, sliding hole 2 and sliding hole 3, and one end of the top plate is provided with a limit plate by screws to close sliding hole 1, sliding hole 2 and sliding hole 3.
[0009] In a preferred embodiment of the present utility model, detection ends are slidably arranged in the sliding hole one, the sliding hole two and the sliding hole three respectively, and the detection ends include an I-shaped moving block and a nut, and the corresponding I-shaped moving blocks are slidably arranged in the sliding hole one, the sliding hole two and the sliding hole three respectively, and the nut is installed at the upper end of the I-shaped moving block.
[0010] In a preferred embodiment of the utility model, the nut and the I-shaped moving block have internal threads for mounting a metal sensing probe, a protective cap is mounted on the upper end of the metal sensing probe, a connecting wire is mounted on the lower end of the metal sensing probe, and the other end of the connecting wire is connected to an integrated relay.
[0011] In a preferred embodiment of the present utility model, a fastening bolt is threadedly mounted on the upper end of the I-shaped moving block to limit the position of the I-shaped moving block.
[0012] In a preferred embodiment of the present utility model, a limit block is installed at the upper end of the bottom plate, and a limit block is also installed at the lower end of the top plate, and a PC fireproof transparent plate is inserted between the limit blocks.
[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.
[0014] Beneficial effects:
[0015] By setting up a metal nut detector for plastic products, when the plastic product approaches the metal sensing probe through a robot, the signal sensed by the metal sensing probe is transmitted to the integrated relay, and the integrated relay transmits the signal to the robot through the PLC signal to distinguish between good and defective products, thereby reducing the risk of manual full inspection or missed inspection, and effectively detecting whether there are missing nuts in the plastic product in all directions. There is no need for technical personnel to deal with abnormal alarms, and the next set of actions will be automatically carried out. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is the structural diagram of the metal nut detector for plastic products;
[0017] Figure 2 This is the main view of the metal nut detector for plastic products;
[0018] Figure 3 This is a schematic diagram of the installation of the PC fireproof transparent plate in the metal nut detector for plastic products;
[0019] Figure 4 This is a structural diagram of the detection end in the metal nut detector for plastic products.
[0020] In the figure: base plate 1, support rod 11, top plate 12, detection mechanism 2, integrated relay 21, transformer power supply 22, slide hole 1 23, slide hole 231, slide hole 3 232, limit plate 24, detection terminal 25, I-shaped moving block 251, nut 252, metal sensing probe 253, protective cap 254, fastening bolt 255, connecting wire 256, limit block 26, PC fireproof transparent plate 27. DETAILED DESCRIPTION
[0021] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.
[0022] Such as Figures 1 - 4 ;
[0023] It includes a bottom plate 1, a support rod 11 and a top plate 12. The bottom of the support rod 11 is connected to the bottom plate 1, and the bottom plate 1 is used to support and install the integrated relay 21 and the variable voltage power supply 22. Both ends of the bottom plate 1 are fixed by mounting bolts. The top of the support rod 11 is connected to the top plate 12 by screws, and the top plate 12 is supported and installed by the support rod 11. Both the bottom plate 1 and the top plate 12 are made of high-temperature resistant insulating board fireproof materials, high-temperature resistant fiber boards. A detection mechanism 2 is provided inside the bottom plate 1 and the top plate 12, and the detection mechanism 2 is convenient for quickly detecting the metal nuts inside the plastic products;
[0024] The detection mechanism 2 includes an integrated relay 21 and a variable voltage power supply 22. The integrated relay 21 and the variable voltage power supply 22 are respectively installed at the upper end of the bottom plate 1. The model of the integrated relay 21 is 24VDC. The integrated relay 21 is connected to the metal induction probe 253 through a connecting wire 256. The integrated relay 21 is used to receive the signal fed back by the metal induction probe 253. The integrated relay 21 transmits the signal to the manipulator through the PLC signal to distinguish between good products and defective products, thereby reducing the risk of manual full inspection or missed inspection. A first sliding hole 23, a second sliding hole 231 and a third sliding hole 232 are respectively formed in the top plate 12. The first sliding hole 23, the second sliding hole 231 and the third sliding hole 232 are all used to support the corresponding I-shaped moving block 251 to slide, facilitating the adjustment of the position of the I-shaped moving block 251. One end of the top plate 12 is installed with a limiting plate 24 by screws to close the first sliding hole 23, the second sliding hole 231 and the third sliding hole 232. This not only facilitates the installation and disassembly of the I-shaped moving block 251, but also is used to limit the I-shaped moving block 251 to prevent the I-shaped moving block 251 from detaching from the top plate 12. Detection ends 25 are respectively slidably arranged in the first sliding hole 23, the second sliding hole 231 and the third sliding hole 232. The manipulator grabs the plastic product and inserts it from the upper end of the detection end 25, and the detection end 25 is used to detect the metal nuts inside the plastic product;
[0025] The detection end 25 includes an I-shaped moving block 251 and a nut 252. The corresponding I-shaped moving blocks 251 are respectively slidably arranged in the first sliding hole 23, the second sliding hole 231 and the third sliding hole 232. The I-shaped moving block 251 is used to support the installation of the metal induction probe 253. After the I-shaped moving block 251 slides, the lateral position of the metal induction probe 253 can also be adjusted to meet the detection of nuts in plastic products of different sizes. The nut 252 is installed at the upper end of the I-shaped moving block 251. The nut 252 is used to support the installation of the metal induction probe 253, which is convenient for the metal induction probe 253 to rotate and adjust the height position. The nut 252 and the I-shaped moving block 251 are internally threaded to install the metal induction probe 253. When the plastic product approaches the metal induction probe 253, such as Figure 2 , the signal sensed by the metal induction probe 253 is transmitted to the integrated relay 21. A protective cap 254 is installed at the upper end of the metal induction probe 253. The protective cap 254 is used to protect the top end of the metal induction probe 253 to prevent the top end of the metal induction probe 253 from being touched. A connecting wire 256 is installed at the lower end of the metal induction probe 253. The metal induction probe 253 and the integrated relay 21 are connected through the connecting wire 256. The other end of the connecting wire 256 is connected to the integrated relay 21. A fastening bolt 255 is also threadedly installed at the upper end of the I-shaped moving block 251 to limit the position of the I-shaped moving block 251. After the position of the I-shaped moving block 251 is adjusted by sliding, the fastening bolt 255 is tightened to limit the position of the I-shaped moving block 251;
[0026] A limiting block 26 is installed at the upper end of the bottom plate 1. The inner side of the limiting block 26 is used to clamp and support the PC fireproof transparent plate 27, and it is also convenient to install and remove the PC fireproof transparent plate 27. A limiting block 26 is also installed at the lower end of the top plate 12. The PC fireproof transparent plate 27 is inserted between the limiting blocks 26. The internal structures and connection methods of the PC fireproof transparent plate 27 can be clearly seen from the outside, which is convenient for observation.
[0027] The working principle of the present utility model is as follows: The integrated relay 21 and the variable voltage power supply 22 are respectively installed at the upper end of the bottom plate 1. The top plate 12 is respectively provided with a first sliding hole 23, a second sliding hole 231 and a third sliding hole 232. One end of the top plate 12 is installed with a limit plate 24 by screws to close the first sliding hole 23, the second sliding hole 231 and the third sliding hole 232. Detection ends 25 are respectively slidably arranged in the first sliding hole 23, the second sliding hole 231 and the third sliding hole 232. The detection end 25 includes an I-shaped moving block 251 and a nut 252. The corresponding I-shaped moving blocks 251 are respectively slidably arranged in the first sliding hole 23, the second sliding hole 231 and the third sliding hole 232. The nut 252 is installed at the upper end of the I-shaped moving block 251. A metal induction probe 253 is installed inside the nut 252 and the I-shaped moving block 251 by internal threads. A protective cap 254 is installed at the upper end of the metal induction probe 253. A connecting wire 256 is installed at the lower end of the metal induction probe 253. The other end of the connecting wire 256 is connected to the integrated relay 21. A fastening bolt 255 is also installed at the upper end of the I-shaped moving block 251 by threads to limit the position of the I-shaped moving block 251. A limit block 26 is installed at the upper end of the bottom plate 1, and a limit block 26 is also installed at the lower end of the top plate 12. A PC fireproof transparent plate 27 is inserted between the limit blocks 26. After the position of the I-shaped moving block 251 is slidably adjusted, the horizontal position of the metal induction probe 253 is adjusted accordingly. The fastening bolt 255 is tightened to limit the position of the I-shaped moving block 251. The metal induction probe 253 is rotated to adjust the height position of the corresponding metal induction probe 253. When the plastic product approaches the metal induction probe 253 by means of mechanical hand transfer and is inserted from the upper end of the detection end 25, the internal metal nut of the plastic product is detected by the detection end 25. The signal sensed by the metal induction probe 253 is transmitted to the integrated relay 21. After the integrated relay 2 receives the signal fed back by the metal induction probe 253, the integrated relay 21 transmits the signal to the mechanical hand through the PLC signal to distinguish between good products and defective products, thereby reducing the risk of manual full inspection or missed inspection, effectively detecting whether there are missing nuts in the plastic product in all directions, and eliminating the need for manual handling of alarm anomalies.
[0028] Although the present utility model has been described above with reference to the embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present utility model can be combined with each other in any way. The exhaustive description of these combinations is omitted in this specification only for the sake of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.
Claims
1. A metal nut detector for plastic products, comprising a bottom plate (1), a support rod (11) and a top plate (12), wherein the bottom of the support rod (11) is connected to the bottom plate (1), and the top of the support rod (11) is connected to the top plate (12) via screws, characterized in that: A detection mechanism (2) is provided inside the bottom plate (1) and the top plate (12), and the detection mechanism (2) facilitates rapid detection of metal nuts inside plastic products; The detection mechanism (2) comprises an integrated relay (21) and a transformer power supply (22), wherein the integrated relay (21) and the transformer power supply (22) are respectively mounted on the upper end of the base plate (1).
2. The metal nut detector for plastic products according to claim 1, characterized in that: The top plate (12) is respectively provided with a first sliding hole (23), a second sliding hole (231) and a third sliding hole (232); a limiting plate (24) is installed at one end of the top plate (12) by screws to close the first sliding hole (23), the second sliding hole (231) and the third sliding hole (232).
3. The metal nut detector for plastic products according to claim 2, characterized in that: The detection end (25) is slidably arranged in the first sliding hole (23), the second sliding hole (231) and the third sliding hole (232), respectively. The detection end (25) comprises an I-shaped moving block (251) and a nut (252). The corresponding I-shaped moving blocks (251) are slidably arranged in the first sliding hole (23), the second sliding hole (231) and the third sliding hole (232), respectively. The nut (252) is installed on the upper end of the I-shaped moving block (251).
4. The metal nut detector for plastic products according to claim 3, characterized in that: The nut (252) and the I-shaped moving block (251) are internally threadedly mounted with a metal sensing probe (253), a protective cap (254) is mounted on the upper end of the metal sensing probe (253), a connecting wire (256) is mounted on the lower end of the metal sensing probe (253), and the other end of the connecting wire (256) is connected to an integrated relay (21).
5. The metal nut detector for plastic products according to claim 3, characterized in that: A fastening bolt (255) is also threadedly mounted on the upper end of the I-shaped moving block (251) to limit the position of the I-shaped moving block (251).
6. The metal nut detector for plastic products according to claim 1, characterized in that: A limit block (26) is installed at the upper end of the bottom plate (1), and a limit block (26) is also installed at the lower end of the top plate (12), and a PC fireproof transparent plate (27) is inserted between the limit blocks (26).