An automatic positioning and installation device for RFID antennas

Abstract

This invention belongs to the field of RFID antenna installation technology, specifically an automatic positioning and installation device for RFID antennas. It includes a frame, a positioning platform, a mounting mechanism, a feeding mechanism, a correction mechanism, and a discharging mechanism. The positioning platform includes a placement platform, a motor, a side positioning plate fixed to the left side of the placement platform, and a rear positioning plate fixed to the rear. The mounting mechanism is located at the front of the frame, with a positioning groove matching the RFID antenna at the end of its mounting head, and a vacuum suction cup installed in the positioning groove. The feeding mechanism is located on the rear positioning plate and includes a U-shaped feeding port and a baffle plate rotatably connected via a rotating shaft. The correction mechanism includes an extension platform and a pair of correction plates symmetrically arranged in a V-shape. The discharging mechanism includes a linear module and an L-shaped push plate, with clearance openings on the side positioning plates. This invention can automatically complete the entire process of tray feeding, correction, positioning, antenna mounting on the front and right sides, and discharging, improving mounting efficiency and positional accuracy.

Description

Technical Field

[0001] This invention relates to the field of RFID antenna installation technology, and in particular to an automatic positioning and installation device for RFID antennas. Background Technology

[0002] In logistics and warehousing management, to improve the accuracy of pallet identification when entering and leaving the warehouse, it is generally necessary to attach an RFID antenna to the front or rear of the pallet, and another RFID antenna to the left or right side of the pallet. This ensures that when the pallet passes through the identification channel in a horizontal or vertical position, at least one RFID antenna is facing the reader, thus guaranteeing identification accuracy. Therefore, in practical applications, each pallet typically requires two RFID antennas, located on two adjacent sides.

[0003] Currently, the installation of RFID antennas on logistics pallets primarily relies on manual methods. Operators hold the RFID antenna, peel off the release paper on the back, and align the antenna with the designated position on the pallet. This manual method has several problems: First, it is inefficient, making it difficult to meet production cycle requirements in high-volume logistics pallet processing scenarios. Second, the positional accuracy of manual installation is difficult to guarantee; different operators or even the same operator at different times may install antennas with inconsistencies, affecting the stability of subsequent identification. Third, manual installation is labor-intensive, and repetitive work can easily lead to operator fatigue. Therefore, it is necessary to design a device that can automatically position and install RFID antennas on logistics pallets to replace manual operation, improving production efficiency and installation consistency. Summary of the Invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes an automatic positioning and installation device for RFID antennas.

[0005] The present invention proposes an automatic positioning and installation device for RFID antennas, comprising: frame; The positioning platform includes a placement platform, a motor for driving the placement platform to rotate, a side positioning plate fixed on the left side of the top of the placement platform, and a rear positioning plate fixed at the rear of the top of the placement platform. The mounting mechanism is located in front of the frame and includes a fixed base, a linear module 1 mounted on the fixed base, and a mounting head mounted on a slider of the linear module 1. The end of the mounting head is provided with a positioning groove that matches the RFID antenna, and a vacuum suction cup for adsorbing the RFID antenna is installed in the positioning groove. The feeding mechanism is disposed on the rear positioning plate and includes a feeding port opened on the rear positioning plate and a baffle rotatably connected to the feeding port via a rotating shaft. The correction mechanism includes an extension platform fixed behind the placement platform and a pair of correction plates symmetrically fixed on the top of the extension platform, the pair of correction plates being arranged in a figure-eight shape. The discharge mechanism includes a linear module two fixed to the front of the frame and an L-shaped push plate fixed to the slider of the linear module two. The side positioning plate has an opening for the L-shaped push plate to pass through.

[0006] Preferably, the top view of the feed inlet is convex, the shape of the baffle matches the front of the convex shape of the feed inlet, the baffle is installed on the front of the convex shape of the feed inlet through the rotating shaft, the baffle is kept vertical by gravity and its rear side abuts against the stepped surface of the feed inlet for limitation.

[0007] Preferably, the opening direction of the figure-eight shaped opening of the correction plate faces the rear of the extension platform, and the distance between the two correction plates gradually decreases along the direction close to the placement platform.

[0008] Preferably, the placement platform is a rectangular flat plate, the motor is fixed to the top of the frame, and the output shaft of the motor is fixedly connected to the bottom center of the placement platform.

[0009] Preferably, the first linear module is a linear motor type linear module, and the mounting head reciprocates in the front-to-back direction under the drive of the first linear module.

[0010] Preferably, the outline of the positioning groove is consistent with the shape of the RFID antenna, the vacuum suction cup is embedded in the inner wall of the positioning groove, and the suction surface of the vacuum suction cup is flush with the back of the RFID antenna.

[0011] Preferably, both the side positioning plate and the rear positioning plate are vertically arranged rectangular plates, and the length direction of the side positioning plate is perpendicular to the length direction of the rear positioning plate.

[0012] Preferably, the upper surface of the extension platform is flush with the upper surface of the placement platform.

[0013] Preferably, the L-shaped push plate includes a horizontal section and a vertical section, and the width of the horizontal section is smaller than the width of the clearance opening.

[0014] Preferably, the motor is a stepper motor or a servo motor, and the motor drives the placement platform to rotate by 90° each time.

[0015] Compared with the prior art, the present invention provides an automatic positioning and installation device for RFID antennas, which has the following advantages: 1. By setting up a motor-driven rotatable placement platform, in conjunction with side positioning plates and rear positioning plates, the equipment can sequentially complete the RFID antenna mounting on two adjacent sides of the pallet in one workstation. After the motor-driven placement platform rotates 90°, the mounting mechanism can move again to mount the antenna on the other side of the pallet, realizing multi-sided mounting automation.

[0016] 2. The baffle in the feeding mechanism is rotatably connected to the convex-shaped feeding port via a rotating shaft. It automatically resets by gravity. Due to the limiting effect of the step surface of the feeding port, the baffle can only rotate forward and not backward. This design ensures that the pallet can smoothly enter the placement platform and can also serve as the rear positioning reference of the pallet during mounting. The structure is simple and the function is reliable.

[0017] 3. By setting up a discharge mechanism, the L-shaped push plate, driven by the linear module two, passes through the clearance opening on the side positioning plate and pushes the completed tray out of the placement platform, realizing automatic unloading and further improving the automation level of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the posture of a logistics pallet as it passes through the identification channel. Figure 3 This is a schematic diagram of the positioning platform structure of the present invention; Figure 4 This is a schematic diagram of the mounting head structure of the present invention; Figure 5 This is a schematic diagram of the feeding mechanism of the present invention; Figure 6 This is a schematic diagram showing the state of the RFID antenna being attached to the front of the logistics pallet according to the present invention; Figure 7 This is a schematic diagram showing the RFID antenna mounted on the right side of the logistics pallet according to the present invention. Figure 8 This is a schematic diagram showing the state of the material dispensing mechanism of the present invention delivering the logistics pallet.

[0019] In the diagram: 1. Frame; 2. Positioning platform; 21. Side positioning plate; 211. Clearance opening; 22. Rear positioning plate; 23. Placement platform; 24. Motor; 3. Mounting mechanism; 31. Fixed base; 32. Linear module one; 33. Mounting head; 331. Positioning groove; 332. Vacuum suction cup; 4. Feeding mechanism; 41. Baffle; 42. Rotating shaft; 43. Feed port; 5. Correction mechanism; 51. Extension table; 52. Correction plate; 6. Discharge mechanism; 61. Linear module two; 62. Push plate; 7. Logistics pallet. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Reference Figures 1-8 This invention provides an automatic RFID antenna positioning and installation device for automatically attaching RFID antennas to the front and right sides of a logistics pallet 7. The device mainly includes a frame 1, a positioning platform 2, an attachment mechanism 3, a feeding mechanism 4, a correction mechanism 5, and a discharging mechanism 6.

[0023] The frame 1 serves as the supporting foundation for the entire equipment. The top of the frame 1 is a horizontal worktable for mounting the motor 24 of the positioning platform 2 and other related components. The front area of ​​the frame 1 is used to mount the fixed base 31 of the mounting mechanism 3 and the linear module 61 of the discharge mechanism 6, while the rear area of ​​the frame 1 is used to mount the extension table 51 of the correction mechanism 5.

[0024] The positioning platform 2 is the core component used to support and position the logistics pallet 7. The positioning platform 2 includes a placement platform 23, a motor 24, a side positioning plate 21, and a rear positioning plate 22.

[0025] The placement platform 23 is a rectangular flat plate, larger than the bottom surface of the logistics pallet 7, to stably support the logistics pallet 7. The upper surface of the placement platform 23 is precision machined, making it smooth and flat to reduce frictional resistance when the pallet moves on the platform. A connecting seat is provided at the bottom center of the placement platform 23 for fixed connection with the output shaft of the motor 24.

[0026] Motor 24 is fixedly mounted on the top of frame 1. The output shaft of motor 24 extends vertically upward and is fixedly connected to the connecting seat at the bottom of placement platform 23 via a coupling or directly. Motor 24 is preferably a stepper motor or a servo motor, both of which have precise angle control capabilities. In this embodiment, motor 24 is a stepper motor with a step angle of 1.8°. Combined with the microstepping control of the driver, high-precision angle positioning can be achieved. Motor 24 drives placement platform 23 to rotate 90° each time, and the rotation direction is clockwise (according to...). Figure 1 (From the perspective of the device). The rotation of motor 24 is automatically controlled by the device's controller according to a preset program.

[0027] The side positioning plate 21 is a vertically arranged rectangular plate, fixed to the top left side of the placement platform 23 by bolts or welding. The length direction of the side positioning plate 21 is consistent with the length direction of the placement platform 23, and the inner side (right side) of the side positioning plate 21 is the positioning working surface, which is perpendicular to the upper surface of the placement platform 23. A rectangular clearance opening 211 is provided on the side positioning plate 21, which extends through the thickness direction of the side positioning plate 21, for the L-shaped push plate 62 of the discharge mechanism 6 to pass through. The position of the clearance opening 211 corresponds to the moving path of the push plate 62 of the discharge mechanism 6, so that the push plate 62 can pass through the side positioning plate 21 from left to right, thereby pushing the logistics pallet 7 on the placement platform 23.

[0028] The rear positioning plate 22 is also a vertically arranged rectangular plate, fixed at the rear of the top of the placement platform 23. The length direction of the rear positioning plate 22 is consistent with the width direction of the placement platform 23. The inner side (front side) of the rear positioning plate 22 is the positioning working surface, which is perpendicular to the inner side of the side positioning plate 21. Together, they form a right-angle positioning reference.

[0029] The fixed height of the side positioning plate 21 and the rear positioning plate 22 should be the same, and both should protrude a certain height from the upper surface of the placement platform 23.

[0030] The mounting mechanism 3 is the component that performs the RFID antenna mounting action. It is located in front of the frame 1. The mounting mechanism 3 includes a fixed base 31, a linear module 32, and a mounting head 33.

[0031] The fixed base 31 is fixed to the front of the frame 1. The upper part of the fixed base 31 is provided with a mounting surface for mounting the linear module 32. The height of the fixed base 31 is precisely designed so that when the mounting head 33 moves to the foremost position, the height of its end is consistent with the center height of the front side of the logistics pallet 7.

[0032] Linear module 32 is mounted on fixed base 31 and moves in a back-and-forth direction. Linear module 32 is preferably a linear motor type, which has advantages such as fast response speed, high positioning accuracy, and smooth movement. Linear module 32 includes a stator and a mover (slider), and the slider can reciprocate linearly along a guide rail on the stator. The stroke of linear module 32 should not be less than the maximum travel distance of the placement head 33 from the standby position to the placement position. The movement of linear module 32 is precisely controlled by a controller to ensure that the placement head 33 can press the RFID antenna onto the side of the logistics pallet 7 at an appropriate speed and pressure.

[0033] The mounting head 33 is fixedly mounted on the slider of the linear module 32 and moves with the slider. The mounting head 33 is block-shaped, with a positioning groove 331 at its front end (facing the placement platform 23). The shape and size of the positioning groove 331 perfectly match the shape of the RFID antenna to be mounted. The depth of the positioning groove 331 is approximately half the thickness of the RFID antenna, so that the antenna can be partially embedded in the groove and remain stable. A vacuum suction cup 332 is installed on the inner wall of the positioning groove 331. The vacuum suction cup 332 is connected to an external vacuum generator or vacuum pump through an air tube. In this way, when the RFID antenna is placed into the positioning groove 331, the back of the antenna is in close contact with the adsorption surface of the vacuum suction cup 332, and the vacuum suction cup 332 can firmly hold the antenna, preventing the antenna from falling or shifting during the movement of the mounting head 33. The vacuum suction cup 332 can be multiple small suction cups or a non-circular suction cup that matches the shape of the back of the antenna.

[0034] The feeding mechanism 4 is mounted on the rear positioning plate 22 to enable unidirectional entry of the logistics pallet 7 and to serve as a rear positioning reference during mounting. The feeding mechanism 4 includes a feed port 43, a rotating shaft 42, and a baffle 41.

[0035] The feed inlet 43 is located on the rear positioning plate 22, extending downwards from the upper edge of the rear positioning plate 22 to a certain depth. The feed inlet 43 has a U-shaped cross-section when viewed from above, meaning it is wider at the front (near the placement platform 23) and narrower at the rear (away from the placement platform 23). The narrow part of the U-shape matches the thickness of the logistics pallet 7, allowing the pallet to pass through; the wide part of the U-shape accommodates the baffle 41. A stepped surface is formed between the narrow and wide parts, which limits the angle at which the baffle 41 rotates backward.

[0036] The baffle 41 is a plate that matches the U-shaped front part of the feed inlet 43, and its width is slightly smaller than the width of the narrow part of the feed inlet 43. The upper part of the baffle 41 is rotatably connected to the U-shaped front part of the feed inlet 43 via a pivot 42. The pivot 42 is horizontally set, allowing the baffle 41 to swing back and forth around the pivot 42. In its natural state, the baffle 41 maintains a vertical posture by gravity. When the baffle 41 is in a vertical posture, its rear side abuts against the stepped surface of the feed inlet 43. The stepped surface restricts the baffle 41 from rotating further backward. When an external force pushes the baffle 41 from the rear, the baffle 41 can rotate forward (towards the placement platform 23) to make way. After the external force disappears, the baffle 41 automatically returns to a vertical posture under the action of gravity. This unidirectional rotation mechanism ensures that the logistics pallet 7 can only enter the placement platform 23 from the rear and cannot exit in the reverse direction. At the same time, the baffle 41 can serve as a positioning reference surface for the rear of the pallet when it is in a vertical state.

[0037] The alignment mechanism 5 is used to correct the feeding posture of the logistics pallet 7 before it enters the placement platform 23, ensuring that the pallet can be accurately aligned with the feed inlet 43 and smoothly enter the placement platform 23. The alignment mechanism 5 includes an extension table 51 and a pair of alignment plates 52.

[0038] The extension platform 51 is fixedly installed behind the placement platform 23. The upper surface of the extension platform 51 is flush with the upper surface of the placement platform 23, forming a continuous support plane so that the logistics pallet 7 can slide smoothly into the placement platform 23 from the rear. The extension platform 51 should be long enough to complete the correction action before the pallet is fully entered into the placement platform 23.

[0039] A pair of alignment plates 52 are symmetrically fixed on the top left and right sides of the extension platform 51. The two alignment plates 52 are arranged in a figure-eight shape, that is, the distance between them gradually decreases in the direction close to the placement platform 23 and gradually increases in the direction away from the placement platform 23, so as to ensure that the pallet is always guided by the side of the alignment plates 52 when passing through.

[0040] When the logistics pallet 7 enters the extension table 51 from the rear at an angle, the pallet first contacts the rear end with the larger V-shaped opening. As the pallet continues to move forward, the correction plates 52 on both sides gradually guide the pallet toward the center, and finally the pallet enters the feed inlet 43 in the correct posture.

[0041] The unloading mechanism 6 is used to push the logistics pallet 7 with the RFID antenna attached from the placement platform 23 to achieve automatic unloading. The unloading mechanism 6 includes a linear module 61 and an L-shaped push plate 62.

[0042] Linear module 2 61 is fixedly installed at the front of frame 1, and its movement direction is left and right. Linear module 2 61 can be a lead screw type linear module or a linear motor type linear module. In this embodiment, a lead screw type linear module is preferred, including a motor, lead screw, nut and slider. The stroke of linear module 2 61 should not be less than the width (left and right dimension) of the placement platform 23 to ensure that the push plate 62 can completely push the tray out of the placement platform 23.

[0043] The L-shaped pusher plate 62 is fixed to the slider of the linear module 2 61. The L-shaped pusher plate 62 includes a horizontal section and a vertical section, and is L-shaped in general. The width of the horizontal section is smaller than the width of the clearance opening 211 on the side positioning plate 21, so that the horizontal section can pass through the clearance opening 211. The front end face of the horizontal section of the L-shaped pusher plate 62 is the pushing working surface. This working surface moves from left to right under the drive of the linear module 2 61, pushing the left side of the logistics pallet 7 on the placement platform 23 and pushing the pallet out of the placement platform 23 from the right side.

[0044] Working principle: such as Figure 1 As shown, the equipment is in its initial state. At this time, the placement platform 23 is at its initial angle, that is, the side positioning plate 21 is on the left and the rear positioning plate 22 is behind. The placement head 33 of the placement mechanism 3 is in the retracted standby position. The L-shaped push plate 62 of the discharge mechanism 6 is in the leftmost position and has not yet entered the clearance opening 211. The baffle 41 is in a vertical state under the action of gravity, and its rear abuts against the stepped surface of the feed inlet 43.

[0045] The feeding operation begins first. The logistics pallet 7 can be placed manually at the rear end of the extension table 51, or it can be fed in by an upstream automated conveyor (such as a conveyor belt). The logistics pallet 7 moves forward on the extension table 51, first entering the V-shaped opening area formed by a pair of straightening plates 52. If the pallet is tilted, the two sides of the pallet will contact the inner surfaces of the straightening plates 52. Under the guidance of the straightening plates 52, the pallet's posture is gradually corrected, eventually making the length direction of the pallet parallel to the length direction of the extension table 51.

[0046] After correction, the logistics pallet 7 continues to move forward, its front end entering the feed inlet 43 on the rear positioning plate 22. The front end of the pallet first contacts the baffle 41. Since the baffle 41 can only rotate forward and not backward, the front end of the pallet pushes the baffle 41 to rotate forward around the pivot 42, making way. The pallet continues to move forward, passing through the feed inlet 43 and fully entering the upper surface of the placement platform 23. When the rear end of the pallet leaves the baffle 41, the baffle 41 rotates backward around the pivot 42 under its own gravity, returning to a vertical state, and its rear side abuts against the stepped surface of the feed inlet 43, forming a stable positioning reference surface.

[0047] At this time, the logistics pallet 7 is located on the placement platform 23. Its left side has not yet contacted the side positioning plate 21, and its rear has not yet contacted the rear positioning plate 22. Therefore, a positioning operation is required.

[0048] like Figure 6 As shown, the mounting mechanism 3 begins operation. Linear module 32 drives the mounting head 33 to move backward. The end of the mounting head 33 (the end where the positioning groove 331 is located) first pushes the logistics tray 7 backward until the rear side of the tray is tightly fitted against the inner side of the rear positioning plate 22. At this time, the back of the RFID antenna (pre-attached to the positioning groove 331 by a vacuum suction cup 332) in the positioning groove 331 of the mounting head 33 has double-sided adhesive, which faces the front side of the tray. As the mounting head 33 continues to apply pressure forward, the double-sided adhesive on the back of the RFID antenna is pressed firmly onto the front side of the tray, completing the mounting of the first RFID antenna on the front of the tray. Then, linear module 32 drives the mounting head 33 forward, resetting it to the standby position.

[0049] Next, the rotation operation will be performed. Motor 24 starts, driving the placement platform 23 to rotate 90° clockwise (according to...). Figure 1 (From the perspective of the placement platform 23). Since both the side positioning plate 21 and the rear positioning plate 22 are fixed on the placement platform 23, they rotate together with the placement platform 23. After rotating 90°, the original rear positioning plate 22 becomes the right side positioning plate, and the original side positioning plate 21 becomes the rear side positioning plate. At this time, the right side of the logistics pallet 7 is directly facing the placement head 33 of the placement mechanism 3.

[0050] Then proceed with attaching the second RFID antenna. For example... Figure 7 As shown, the mounting mechanism 3 operates again, and the linear module 32 drives the mounting head 33 to move backward. The mounting head 33 pushes the logistics pallet 7 backward, causing the logistics pallet 7 to adhere tightly to the side positioning plate 21 located at the rear. The second RFID antenna in the positioning groove 331 of the mounting head 33 is pressed onto the right side surface of the pallet, completing the mounting of the second antenna. Afterward, the mounting head 33 resets again.

[0051] After the two antennas are mounted, the motor 24 starts again, driving the placement platform 23 to rotate 90° in the opposite direction (counterclockwise) to return the placement platform 23 to its initial angle for easy unloading.

[0052] Finally, the material is discharged. For example... Figure 8As shown, the linear module 61 of the discharge mechanism 6 drives the L-shaped pusher 62 to move from left to right. The horizontal section of the L-shaped pusher 62 first passes through the clearance opening 211 on the side positioning plate 21, and then contacts the left side of the logistics pallet 7. As the L-shaped pusher 62 continues to move to the right, the logistics pallet 7 is pushed out from the right side of the placement platform 23. The logistics pallet 7 can be pushed onto the downstream conveyor belt or into a collection box. After the logistics pallet 7 has completely left the placement platform 23, the linear module 61 drives the L-shaped pusher 62 to move to the left, resetting it to its initial position.

[0053] At this point, the automatic positioning and installation process of the RFID antenna for one logistics pallet 7 is complete. The equipment can repeat the above steps to work on the next pallet.

[0054] Throughout the entire operation, all actions of the equipment are automatically coordinated and controlled by the controller (such as a PLC or microcontroller) according to a preset program. The controller receives signals from various sensors (such as position sensors, pressure sensors, etc.) and controls the timing of the actions of actuators such as motor 24, linear module 1 32, linear module 2 61, and vacuum generator according to the program logic, ensuring the safe, efficient, and stable operation of the equipment.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic positioning and installation device for RFID antennas, characterized in that, include: Rack (1); The positioning platform (2) includes a placement platform (23), a motor (24) for driving the placement platform (23) to rotate, a side positioning plate (21) fixed on the left side of the top of the placement platform (23), and a rear positioning plate (22) fixed behind the top of the placement platform (23). The mounting mechanism (3) is located in front of the frame (1) and includes a fixed base (31), a linear module (32) mounted on the fixed base (31), and a mounting head (33) mounted on the slider of the linear module (32). The end of the mounting head (33) is provided with a positioning groove (331) that matches the RFID antenna. A vacuum suction cup (332) for adsorbing the RFID antenna is installed in the positioning groove (331). The feeding mechanism (4) is provided on the rear positioning plate (22) and includes a feed port (43) opened on the rear positioning plate (22) and a baffle (41) rotatably connected to the feed port (43) via a rotating shaft (42). The correction mechanism (5) includes an extension platform (51) fixed behind the placement platform (23) and a pair of correction plates (52) symmetrically fixed on the top of the extension platform (51). The pair of correction plates (52) are arranged in a figure-eight shape. The discharge mechanism (6) includes a linear module two (61) fixed in front of the frame (1) and an L-shaped push plate (62) fixed on the slider of the linear module two (61). The side positioning plate (21) has a clearance opening (211) for the L-shaped push plate (62) to pass through.

2. The RFID antenna automatic positioning and installation device according to claim 1, characterized in that, The feed inlet (43) has a U-shaped top view section. The shape of the baffle (41) matches the front of the U-shaped feed inlet (43). The baffle (41) is installed on the front of the U-shaped feed inlet (43) through the rotating shaft (42). The baffle (41) is kept vertical by gravity and its rear side abuts against the stepped surface of the feed inlet (43) for limitation.

3. The RFID antenna automatic positioning and installation device according to claim 1, characterized in that, The opening direction of the figure-eight shaped opening of the correction plate (52) faces the rear of the extension platform (51), and the distance between the two correction plates (52) gradually decreases along the direction close to the placement platform (23).

4. The RFID antenna automatic positioning and installation device according to claim 1, characterized in that, The placement platform (23) is a rectangular flat plate, and the motor (24) is fixed on the top of the frame (1). The output shaft of the motor (24) is fixedly connected to the bottom center of the placement platform (23).

5. The RFID antenna automatic positioning and installation device according to claim 1, characterized in that, The linear module one (32) is a linear motor type linear module, and the mounting head (33) moves back and forth in the front and back direction under the drive of the linear module one (32).

6. The RFID antenna automatic positioning and installation device according to claim 1, characterized in that, The outline of the positioning groove (331) is consistent with the shape of the RFID antenna. The vacuum suction cup (332) is embedded in the inner wall of the positioning groove (331), and the adsorption surface of the vacuum suction cup (332) is flush with the back of the RFID antenna.

7. The RFID antenna automatic positioning and installation device according to claim 1, characterized in that, Both the side positioning plate (21) and the rear positioning plate (22) are vertically arranged rectangular plates, and the length direction of the side positioning plate (21) is perpendicular to the length direction of the rear positioning plate (22).

8. The RFID antenna automatic positioning and installation device according to claim 1, characterized in that, The upper surface of the extension platform (51) is flush with the upper surface of the placement platform (23).

9. The RFID antenna automatic positioning and installation device according to claim 1, characterized in that, The L-shaped push plate (62) includes a horizontal section and a vertical section, the width of which is smaller than the width of the clearance opening (211).

10. An automatic positioning and installation device for RFID antennas according to claim 1, characterized in that, The motor (24) is a stepper motor or a servo motor, and the motor (24) drives the placement platform (23) to rotate by 90° each time.

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