Variable channel needle detector with hidden RFID identification module

Abstract

The utility model provides a variable channel needle detector with a hidden RFID identification module. The variable channel needle detector comprises a detection platform, a conveyor belt arranged above the detection platform, a mounting plate arranged in the detection platform, the mounting plate located below the conveyor belt, a mounting groove formed in the mounting plate, a mounting box embedded in the mounting groove, and the RFID identification module installed in the mounting box. The two sides of the detection platform are each provided with a side wing supporting plate, any side wing supporting plate is provided with one or more heightening blocks, and the number of the heightening blocks on the side wing supporting plates on the two sides is the same. A gantry type needle detecting device is arranged above the conveying belt in a crossing mode, and the bottom ends of the two sides of the gantry type needle detecting device are arranged on the heightening blocks on the two sides respectively. The problems that in the prior art, the size of a detection channel cannot be flexibly adjusted according to the size of a product, and an RFID detection device of a gantry structure is bloated in structure, shields the observation view of a conveying belt and is easily interfered by a magnetic field are solved.

Description

Technical Field

[0001] This utility model relates to the field of physics, and more particularly to metal detection technology, specifically a variable channel needle detector with a hidden RFID identification module. Background Technology

[0002] A needle detector is a ferromagnetic metal sensing instrument, mainly used for detecting ferromagnetic metal foreign objects in textiles or footwear. Unlike previous large metal sensing equipment, existing needle detectors are developing towards miniaturization and intelligence, and also have functions such as barcode scanning and RFID identification.

[0003] The use of RFID (Radio Frequency Identification) chips in branded apparel, footwear, and their packaging is now widespread. This allows for real-time tracking and recording of product information throughout the entire process, from factory to distributor to consumer. RFID tags are attached to products for identification and authentication. During needle detection, the RFID chips in the products are also scanned to categorize and classify the identified products, enabling rapid traceability of products containing broken needles or other metallic foreign objects.

[0004] In existing technologies, RFID identification devices developed for needle detectors, such as CN221175417U, disclose an RFID device applied to a needle detector. This device uses a gantry structure to position the RFID identification module above the entrance or exit of the needle detector's transmission channel, thus achieving a technical solution combining needle detection and RFID. However, this solution has the following drawbacks:

[0005] 1. As the factory's product line changes, the size of the detection channel of the needle detector also needs to be changed to match the new product size. However, the RFID device in the gantry structure above the transmission channel limits the size of the detection channel. When the needle detection channel needs to be increased, the height of the RFID device in the gantry structure cannot be changed, and the entire device needs to be replaced, which is costly.

[0006] 2. A single conveyor belt needs to accommodate two gantry structures spanning the conveyor belt, namely the needle detection device and the RFID device. This bulky structure makes it difficult to miniaturize the needle detection machine.

[0007] 3. The gantry structure of the RFID device obstructs part of the view on the conveyor belt, making it difficult to observe the transport status of the products.

[0008] 4. The identification module of the RFID device and the ferromagnetic module of the needle detection device are both located above the conveyor belt. Since they are close to each other, the identification module of the RFID device is easily affected by the strong magnetic field of the ferromagnetic module, which leads to interference in identification and reduces the accuracy of identification. Summary of the Invention

[0009] The purpose of this utility model is to provide a variable channel needle detector with a hidden RFID identification module. The variable channel needle detector with a hidden RFID identification module aims to solve the problems in the prior art, such as the inability to flexibly adjust the size of the detection channel according to the product size, the bulky structure of the gantry RFID detection device which makes it difficult to miniaturize the needle detector, the obstruction of the observation field of the conveyor belt, and the susceptibility to magnetic field interference.

[0010] A variable-channel needle detector with a concealed RFID identification module includes a detection platform. A conveyor belt is mounted above the detection platform. A mounting plate is installed inside the detection platform, located below the inlet or outlet of the conveyor belt. The mounting plate has a mounting groove, and a mounting box is embedded in the mounting groove. An RFID identification module is installed in the mounting box, with the antenna of the RFID identification module facing upwards. A side wing support plate is provided on each side of the detection platform. Each side wing support plate has one or more lifting blocks, and the number of lifting blocks on both sides is the same. A gantry-type needle detector is horizontally arranged above the conveyor belt. The bottom ends of both sides of the gantry-type needle detector are respectively mounted on the lifting blocks on both sides. The side wing support plate, lifting blocks, and gantry-type needle detector are fixedly connected by one or more screws.

[0011] Furthermore, one side of the mounting groove is connected to the outside through the side of the mounting plate to form an open side, and the mounting box is inserted into the mounting groove through the open side of the mounting groove.

[0012] Furthermore, the inner walls of both sides of the mounting groove are provided with first mounting holes, and the inner walls of both sides of the mounting box are provided with second mounting holes. The first mounting holes and the second mounting holes are fixedly connected by screws.

[0013] Furthermore, the inner wall of the mounting groove is covered with a shielding layer.

[0014] Furthermore, the side wing support plate is provided with screw holes and thread holes, and the raising block is provided with screw grooves and thread grooves. One end of the screw groove and the thread groove are respectively connected to the outside through the side of the raising block to form an open end. The screw passes upward through the screw hole and the screw groove and then connects to the bottom of the gantry-type needle detection device.

[0015] Compared with existing technologies, the advantages of this invention are positive and obvious:

[0016] 1. The height of the gantry-type needle detector can be adjusted by increasing or decreasing the number of the height increase blocks, thereby changing the height of the detection channel to adapt to products of different sizes.

[0017] 2. The RFID identification module of this utility model is hidden below the conveyor belt, so it does not need to be adjusted according to the height of the gantry needle detector, nor does the conveyor belt obstruct the view. At the same time, it is far away from the gantry needle detector above the conveyor belt, avoiding strong magnetic field interference and improving the identification accuracy.

[0018] 3. The inner wall of the mounting groove of this utility model is covered with a shielding layer to further shield magnetic field interference.

[0019] 4. One side of the mounting groove of this utility model is an open side. The mounting box is inserted into the mounting groove through the open side of the mounting groove, which facilitates the quick assembly and disassembly of the mounting box. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of an embodiment of this utility model.

[0021] Figure 2 Exploded views of some embodiments of this utility model.

[0022] Figure 3 A schematic diagram showing the connection between the mounting plate and the mounting box in an embodiment of this utility model.

[0023] Figure 4 A schematic diagram of the height-increasing block in an embodiment of this utility model.

[0024] In the diagram: 1. Detection platform; 2. Side support plate; 201. Screw hole; 202. Wire hole; 3. Heightening block; 301. Screw groove; 302. Wire groove; 4. Gantry needle detector; 5. Conveyor belt; 6. Mounting plate; 601. Mounting slot; 602. First mounting hole; 7. Mounting box; 701. Second mounting hole; 8. RFID identification module; 9. Display screen. Detailed Implementation

[0025] The following embodiments will further illustrate the present invention, but are not intended to limit the present invention.

[0026] like Figures 1 to 4As shown, this embodiment provides a variable channel needle detector with a hidden RFID identification module, including a detection platform 1. A floor frame is fixed to the bottom of the detection platform 1. A conveyor belt 5 is installed above the detection platform 1. An installation plate 6 is installed inside the detection platform 1. The installation plate 6 is parallel to the conveying plane of the conveyor belt and is located below the inlet or outlet of the conveyor belt 5. The installation plate 6 avoids the conveyor rollers of the conveyor belt 5 in the horizontal direction to prevent signal interference. An installation groove 601 is provided on the installation plate 6. An installation box 7 is embedded in the installation groove 601. One side of the installation groove 601 is open to the outside through the side of the installation plate 6. The installation box 7 is inserted into the installation groove 601 through the open side of the installation groove 601 to improve the ease of installation of the installation box 7. First installation holes 602 are provided on the inner walls of both sides of the installation groove 601, and second installation holes 701 are provided on the inner walls of both sides of the installation box 7. The first installation holes 602 and the second installation holes 701 are fixedly connected by screws to fix the installation box 7 in the installation groove 601. An RFID identification module 8 is installed inside the mounting box 7. The antenna of the RFID identification module 8 is set upwards to identify the RFID tags of goods passing through the conveyor belt 5. Hiding the RFID identification module 8 under the conveyor belt 5 avoids a bulky double gantry structure and does not obstruct the view. At the same time, it is away from the gantry-type needle detector 4 above the conveyor belt 5, avoiding interference from the strong magnetic field of the gantry-type needle detector 4 and improving the identification accuracy.

[0027] The inner wall of the mounting slot 601 is covered with a shielding layer, which can be made of aluminum foil, stainless steel plate or other shielding materials. This shields the magnetic field on the side of the RFID identification module 8 antenna and further shields against magnetic field interference.

[0028] A side wing support plate 2 is installed on each side of the detection platform 1. One or more lifting blocks 3 are placed on each side wing support plate 2, and the number of lifting blocks 3 on both sides of the detection platform 1 is the same. A gantry-type needle detector 4 is installed across the top of the conveyor belt 5. The door of the gantry-type needle detector 4 is the detection channel. The bottom ends of both sides of the gantry-type needle detector 4 are placed on the lifting blocks 3 on both sides of the detection platform 1. Each side wing support plate 2, lifting block 3, and gantry-type needle detector 4 are fixedly connected by two screws. The height of the gantry-type needle detector 4 can be adjusted by increasing or decreasing the number of lifting blocks 3 according to the product height requirements, thereby changing the height of the detection channel. Because the RFID identification module is installed below the conveyor belt 5, the height adjustment of the detection channel does not need to consider the height of the RFID module and can be adjusted arbitrarily within the adjustment range according to the product size.

[0029] The side support plate 2 has screw holes 201 and wire holes 202. The lifting block 3 has two screw slots 301 and one wire slot 302. One end of the screw slots 301 and the wire slot 302 are connected to the outside through the side of the lifting block 3 to form an open end. The equipment connection line of the gantry needle detection device 4 is connected to the industrial control computer (not shown in the figure) after passing through the wire holes 202 and the wire slot 302. The two screws pass upward through the screw holes 201 and the screw slots 301 and are fastened to the bottom thread of the gantry needle detection device 4.

[0030] The open ends on one side of the screw slot 301 and the wire slot 302 facilitate the insertion or removal of the height-increasing block 3 without completely removing the screws and equipment connection wires, thus improving the convenience of adding or removing the height-increasing block 3.

[0031] A display screen 9 is installed above the gantry-type needle detector 4. The RFID identification module 8 is connected to the input terminal of the industrial control computer via an RS232 signal line or a 485 signal line. The output terminal of the industrial control computer is connected to the display screen 9, thereby integrating the information identified by the RFID identification module 8 into the display screen 9 for playback, improving the efficiency of information integration, and facilitating more intuitive observation and identification of information.

[0032] The detection channel height adjustment method in this embodiment:

[0033] Taking a gantry-type needle detector 4 with one heightening block 3 installed on each of its two bottom sides as an example, before the heightening, the screws on both sides pass upward through the screw hole 201 and the screw groove 301 and are then threadedly fastened to the bottom of the gantry-type needle detector 4.

[0034] During adjustment, loosen the screws on both sides, lift the gantry needle detector 4 upwards, increase the gap between the side wing support plate 2 and the bottom of the gantry needle detector 4, insert the new heightening block 3 into the gap, align it with the original heightening block 3, and tighten the screws again to complete the tightening after heightening.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A variable-channel needle detector with a concealed RFID identification module, characterized in that: The system includes a testing platform (1), a conveyor belt (5) is provided above the testing platform (1), and an installation plate (6) is provided inside the testing platform (1). The installation plate (6) is located below the inlet or outlet of the conveyor belt (5). An installation groove (601) is provided on the installation plate (6), and an installation box (7) is embedded in the installation groove (601). An RFID identification module (8) is installed in the installation box (7), and the antenna of the RFID identification module (8) is set upward. The detection platform (1) is provided with a side wing support plate (2) on each side, and each side wing support plate (2) is provided with one or more heightening blocks (3). The number of heightening blocks (3) on the side wing support plates (2) on both sides is the same. A gantry needle detection device (4) is provided across the top of the conveyor belt (5). The bottom ends of the gantry needle detection device (4) on both sides are respectively provided on the heightening blocks (3) on both sides. The side wing support plate (2), the heightening blocks (3), and the gantry needle detection device (4) are fixedly connected by one or more screws.

2. A variable channel needle detector with a concealed RFID identification module according to claim 1, characterized in that: One side of the mounting groove (601) is connected to the outside through the side of the mounting plate (6) to form an open side, and the mounting box (7) is inserted into the mounting groove (601) through the open side of the mounting groove (601).

3. A variable channel needle detector with a concealed RFID identification module according to claim 1 or 2, characterized in that: The mounting groove (601) has a first mounting hole (602) on both sides of its inner wall, and the mounting box (7) has a second mounting hole (701) on both sides of its inner wall. The first mounting hole (602) and the second mounting hole (701) are fixedly connected by screws.

4. A variable channel needle detector with a concealed RFID identification module according to claim 1 or 2, characterized in that: The inner wall of the mounting groove (601) is covered with a shielding layer.

5. A variable channel needle detector with a concealed RFID identification module according to claim 1, characterized in that: The side wing support plate (2) is provided with screw holes (201) and wire holes (202). The lifting block (3) is provided with screw grooves (301) and wire grooves (302). One end of the screw groove (301) and the wire groove (302) are respectively connected to the outside through the side of the lifting block (3) to form an open end. The screw passes upward through the screw hole (201) and the screw groove (301) and then connects to the bottom of the gantry needle detection device (4).

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