Soft magnetic attaching equipment for electronic tag

Abstract

The invention relates to the technical field of electronic tag production, in particular to an electronic tag soft magnet attaching device which comprises a machine table, and a flow line, a transferring mechanism for transferring an electronic tag to a carrier on the flow line and an attaching mechanism for attaching a soft magnet to the electronic tag are installed on the machine table. And the pressure maintaining mechanism is used for carrying out pressure maintaining on the electronic tag attached with the soft magnet. In the invention, when the power assembly drives the carrier to move, the electronic tag shakes, and if the soft magnet and the electronic tag are not tightly combined, a separation phenomenon occurs, so that the detection is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic label production, and in particular to a soft magnetic attaching device for electronic labels. Background Art

[0002] By attaching soft magnets to electronic tags, the magnetic properties of the soft magnets can be used to fix the electronic tags. For example, the patent application number CN202010018973.3 discloses its usage scenario.

[0003] Electronic tags such as NFC tags are becoming more and more widely used in daily life. For example, there are many tutorials on how to make homemade NFC refrigerator magnets on the Internet.

[0004] That is to say, there is a need for an electronic tag with its own soft magnetic properties on the market. However, there is a lack of dedicated electronic tag soft magnetic attachment equipment on the market.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0006] The object of the present invention is to provide a soft magnetic attaching device for electronic tags that can effectively solve the above technical problems.

[0007] In order to achieve the purpose of the present invention, the following technical solutions are adopted:

[0008] A soft magnetic attachment device for electronic tags, comprising: a machine platform, a flow line mounted on the machine platform, a transfer mechanism for transferring the electronic tag to a carrier on the flow line, an attachment mechanism for attaching the soft magnetic material to the electronic tag, and a pressure maintaining mechanism for maintaining pressure on the electronic tag after the soft magnetic material is attached;

[0009] The flow line includes: a bracket, and a power component that drives the carrier to move; the power component includes: a power motor, a rocker arm, a limit plate, a lifting plate, a vertical guide plate, a transverse guide plate and a fixed frame; the transverse guide plate is slidably installed on the machine platform, the vertical guide plate is fixedly connected to the transverse guide plate, and the lifting plate is installed on the sliding vertical guide plate; a limit track is provided on the limit plate, one end of the rocker arm is connected to the output shaft of the power motor, a long hole is provided on the rocker arm, and a limit piece is rotatably installed on the other end of the rocker arm, the limit piece is slidably connected to the inner wall of the long hole through a bearing, an insertion rod is fixedly connected to the lifting plate, and a cavity for accommodating the insertion rod is provided on the carrier.

[0010] Furthermore: the end face of the limiting member is columnar, and the end face rolls in the limiting track.

[0011] Furthermore: the transfer mechanism includes: a feed tray, a first linear module that drives the feed tray to move, a first suction nozzle, a second linear module that drives the first suction nozzle to rise and fall, and a third linear module that drives the second linear module to approach or move away from the flow line.

[0012] Furthermore: the attachment mechanism includes: a second suction nozzle, a fourth linear module that drives the second suction nozzle to move, a fifth linear module that drives the fourth linear module to move, and a sixth linear module that drives the fifth linear module to move.

[0013] Furthermore: a moving plate is fixedly mounted on the moving portion of the fifth linear module, the fourth linear module is fixedly mounted on the moving plate, and a first camera is mounted on the moving plate.

[0014] Further: the pressure maintaining mechanism includes: a seventh linear module, a pressure maintaining part, a pressing plate, and a rotating motor that drives the pressing plate to rotate; the pressure maintaining part includes: a mounting frame, a lifting rod, an elastic member, a first shell and a second shell; the mounting frame is fixedly mounted on the seventh linear module; the second shell is fixedly mounted on the mounting frame; the lifting rod is slidably mounted on the mounting frame; the first shell is threadedly connected to the second shell; rotating the first shell can make the first shell move on the second shell; one end of the elastic member is in contact with the first shell, and the other end of the elastic member is in contact with the lifting rod.

[0015] Further: the seventh linear module is installed on the eighth linear module.

[0016] Furthermore: a part to be sensed is installed on the lifting rod, and a sensor is fixedly installed on the mounting frame. When the part to be sensed moves to a required position, the sensor senses the part to be sensed.

[0017] Further: the rotating motor is connected to a rotating part, a retaining part is fixedly installed on the motor fixing frame, a connecting part is rotatably installed inside the retaining part, the connecting part is provided with a receiving cavity, the rotating part is inserted into the receiving cavity to drive the connecting part to rotate, and the connecting part is in sliding contact with the inside of the retaining part.

[0018] Furthermore: the bottom surface of the retaining member is a wavy surface, and a contact member is fixedly mounted on the connecting member.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the soft magnetic attaching device for the electronic tag of the present invention, when the power component drives the carrier to move, the electronic tag will shake. If the soft magnetic and the electronic tag are not tightly combined, separation will occur, which is convenient for detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0022] Figure 1 Schematic diagram of the soft magnetic attachment device of the electronic tag of the present invention.

[0023] Figure 2 Schematic diagram of the flow line, transfer mechanism and pressure-maintaining mechanism of the soft magnetic attaching device of the electronic tag of the present invention.

[0024] Figure 3 Schematic diagram of the attachment mechanism of the soft magnetic attachment device of the electronic tag of the present invention.

[0025] Figure 4 Schematic diagram of the transfer mechanism and pressure-maintaining mechanism of the soft magnetic attaching device for the electronic tag of the present invention.

[0026] Figure 5 for Figure 2 Enlarged schematic diagram of part A.

[0027] Figure 6 This is a schematic diagram of the power components of the soft magnetic attachment device for the electronic tag of the present invention.

[0028] Figure 7 This is a rendering of the power component of the soft magnetic attachment device of the electronic tag of the present invention.

[0029] Figure 8 Schematic diagram of the limiting member of the soft magnetic attachment device of the electronic tag of the present invention.

[0030] Figure 9 Schematic diagram of the pressure-maintaining component of the soft magnetic attachment device of the electronic tag of the present invention.

[0031] Figure 10 This is a cross-sectional view of the pressing plate of the soft magnetic attaching device of the electronic tag of the present invention.

[0032] Figure 11 This is a schematic diagram of the rotating parts and connecting parts of the soft magnetic attachment device of the electronic tag of the present invention.

[0033] In the figure: 1, machine; 2, carrier; 3, feeding tray; 4, first linear module; 5, first suction nozzle; 6, second linear module; 7, third linear module; 8, mounting base; 81, first cylinder; 9, second suction nozzle; 10, fourth linear module; 11, fifth linear module; 12, sixth linear module; 13, moving base; 131, second cylinder; 14, moving plate; 15, first camera; 16, bracket; 17, third cylinder; 18, lower pressure plate; 19, centering piece; 20, power motor; 21, rocker arm; 211, long hole; 22, limit plate; 221, limit rail; 23, lifting plate; 2 4. Vertical guide plate; 25. Horizontal guide plate; 26. Fixed frame; 261. Positioning rib; 27. Limiting member; 28. Seventh linear module; 29. ​​Pressure-maintaining member; 291. Mounting frame; 292. Lifting rod; 293. Elastic member; 294. First shell; 295. Second shell; 296. Part to be sensed; 297. Sensor; 30. Pressing plate; 31. Rotating motor; 311. Coaxial reducer; 312. Rotating member; 313. Holding member; 314. Connecting member; 315. Contact member; 32. Eighth linear module; 33. Tenth linear module; 34. Gripper cylinder; 35. Second camera. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0035] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0036] like Figures 1 to 11As shown, the soft magnetic attaching device for electronic tags of the present invention includes: a machine 1, on which a flow line is installed, a transfer mechanism for transferring the electronic tag to a carrier 2 on the flow line, an attaching mechanism for attaching the soft magnetic tag to the electronic tag, a pressure holding mechanism for maintaining the pressure of the electronic tag after the soft magnetic tag is attached, and a material unloading mechanism.

[0037] The machine 1 is provided with a protective frame on the outside, which protects the entire machine 1 (not shown). The machine 1 is equipped with a soft magnetic supply mechanism. It should be explained here that the soft magnetic material is adhered with an adhesive backing, which is used to adhere to the electronic label. The soft magnetic supply mechanism in this application can refer to the common label supply machines on the market. Since the soft magnetic supply mechanism was developed by others, this application does not elaborate on it in detail.

[0038] The transfer mechanism includes: a feed tray 3, a first linear module 4 that drives the feed tray 3 to move, a first suction nozzle 5, a second linear module 6 that drives the first suction nozzle 5 to rise and fall, and a third linear module 7 that drives the second linear module 6 to approach or move away from the flow line. The first linear module 4 is fixedly mounted on the machine table 1, and a plug-in rod is fixedly mounted on the moving part of the first linear module 4, and the material tray is fixedly plugged into the plug-in rod. The first linear module 4 drives the supply tray 3 to move, so that the supply tray 3 has two workstations, one of which is the loading station, where the worker removes the empty material tray and plugs the material tray containing the electronic tag into the plug-in rod, and the other is the feeding station, where the first suction nozzle 5 takes the material; the third linear module 7 is fixedly mounted on the machine table 1, and the second linear module 6 is mounted on the moving part of the third linear module 7, and a mounting seat 8 is provided on the moving part of the second linear module 6, the first cylinder 81 is fixedly mounted on the mounting seat 8, and the first suction nozzle 5 is mounted on the piston rod of the first cylinder 81.

[0039] The worker removes the empty tray and plugs the tray containing the electronic tag into the plug-in rod. The first linear module 4 drives the feed tray 3 to move to the feeding station. The second linear module 6 drives the mounting seat 8 to move downward. The first cylinder 81 drives the first suction nozzle 5 to move to absorb the electronic tag, and then the third linear module 7 drives the electronic tag to move toward the flow line.

[0040] In the present application, two first suction nozzles 5 are provided, that is, two electronic tags can be taken at a time, thereby speeding up the production progress.

[0041] The attachment mechanism includes: a second suction nozzle 9, a fourth linear module 10 that drives the second suction nozzle 9 to move, a fifth linear module 11 that drives the fourth linear module 10 to move, and a sixth linear module 12 that drives the fifth linear module 11 to move. The sixth linear module 12 is fixedly mounted on the protective frame, the fifth linear module 11 is mounted on the moving part of the sixth linear module 12, and the sixth linear module 12 and the fifth linear module 11 move in a plane, and the movement direction is perpendicular. The fourth linear module 10 is mounted on the moving part of the fifth linear module 11, so that the fifth linear module 11 can drive the fourth linear module 10 to move. A moving seat 13 is mounted on the moving part of the fourth linear module 10, and the fourth linear module 10 drives the moving seat 13 to move. A second cylinder 131 is fixedly mounted on the moving seat 13, and the second suction nozzle 9 is mounted on the piston rod of the second cylinder 131.

[0042] It should be added here that a moving plate 14 is fixedly installed on the moving part of the fifth linear module 11, the fourth linear module 10 is fixedly installed on the moving plate 14, and a first camera 15 is installed on the moving plate 14. The first camera 15 is used to take pictures, and the processing mechanism guides the movement of the attachment mechanism according to the pictures taken by the first camera 15.

[0043] The fourth linear module 10, the fifth linear module 11 and the sixth linear module 12 work together to realize the three-dimensional movement of the second suction nozzle 9, making it convenient to remove the soft magnet and then place it on the electronic tag. Then the second cylinder 131 drives the second suction nozzle 9 to move downward to achieve pressing and initially fix the soft magnet.

[0044] The flow line includes: a bracket 16 , a positioning component for positioning the carrier 2 , and a power component for driving the carrier 2 to move.

[0045] The positioning assembly includes: a third cylinder 17, a lower pressure plate 18 fixedly mounted on the third cylinder 17, a centering piece 19 slidably connected to the lower pressure plate 18 via a guide rail assembly, and the centering pieces 19 are connected via elastic pieces; specifically, the elastic piece is a spring, and the elastic piece is fixedly connected to the two centering pieces 19. When the spring is in a free state, the distance between the two centering pieces 19 is narrower than the length of the carrier 2, and the contact surface between the centering piece 19 and the carrier 2 is an inclined surface, that is, when the two centering pieces 19 move downward synchronously, the two centering pieces 19 first contact the carrier 2 through the inclined surface to center the carrier 2.

[0046] The power assembly includes: a power motor 20 , a rocker arm 21 , a limit plate 22 , a lifting plate 23 , a vertical guide plate 24 , a horizontal guide plate 25 and a fixing frame 26 .

[0047] The fixing frame 26 is fixedly installed on both sides of the bracket 16, and the fixing frame 26 has at least one positioning ridge 261. The carrier 2 has a positioning groove matching the positioning ridge 261, so that the carrier 2 can move up and down during movement; a fourth cylinder is installed on the fixing block on the opposite side of the positioning component, and the fourth cylinder can drive it to move, thereby realizing the adjustment of the width direction position of the carrier 2, and cooperating with the positioning component to adjust the length direction position of the carrier 2, so that the position of the carrier 2 is more precise.

[0048] It should be added here that the processing mechanism of the present application guides the movement of the attachment mechanism according to the photos taken by the first camera 15. That is to say, the present application may not require adjustment of the position of the carrier 2, but in order to ensure the smoothness of the movement, the position of the carrier 2 is adjusted. In other words, the user of the relevant mechanism to adjust the position of the carrier 2 can flexibly set it according to his or her own practical needs.

[0049] The transverse guide plate 25 is mounted on the machine 1 via a first guide rail slider, the vertical guide plate 24 is fixedly connected to the transverse guide plate 25, and the lifting plate 23 is mounted on the vertical guide plate 24 via a second guide rail slider. The limit plate 22 is fixedly mounted on the machine 1, and a limit track 221 is provided on the limit plate 22. One end of the rocker arm 21 is connected to the output shaft of the power motor 20, so that the power motor 20 drives the rocker arm 21 to rotate. The rocker arm 21 is provided with a long hole 211, and the other end of the rocker arm 21 is rotatably mounted with a limit member 27. The limit member 27 is slidably connected to the inner wall of the long hole 211 through a bearing. The end face of the limit member 27 is cylindrical and rolls within the limit track 221. The other end of the limit member 27 is fixedly connected to the lifting plate 23. Therefore, during the rotation of the power motor 20, the lifting plate 23 can be driven to move up and down while moving along the bracket 16.

[0050] The lifting plate 23 is fixedly connected to a plug rod, and the carrier 2 is provided with a cavity for accommodating the plug rod. When the lifting plate 23 moves upward, the plug rod is inserted into the cavity and drives the carrier 2 to move upward. When the lifting plate 23 moves along the bracket 16, it drives the carrier 2 to move. When the lifting plate 23 moves downward, the plug rod is disengaged from the cavity, and then the lifting plate 23 moves in the opposite direction and resets to realize the movement of the carrier 2. Therefore, it is necessary to set a carrier 2 loading robot at one end of the bracket 16.

[0051] The pressure-maintaining mechanism includes: a seventh linear module 28, a pressure-maintaining part 29, a pressing plate 30, and a rotating motor 31 that drives the pressing plate 30 to rotate; the second suction nozzle 9 places the electronic tag with the soft magnetic initial fixation on the pressing plate 30, and the seventh linear module 28 drives the pressure-maintaining part 29 to move downward until the pressure-maintaining part 29 moves into place. At this time, the pressing plate 30 rotates and performs secondary pressing to achieve the purpose of pressure maintenance.

[0052] It should be added here that the seventh linear module 28 is installed on the eighth linear module 32 , and the eighth linear module 32 drives the seventh linear module 28 to move so as to avoid the second suction nozzle 9 .

[0053] The pressure maintaining part 29 includes: a mounting frame 291, a lifting rod 292, an elastic member 293, a first shell 294 and a second shell 295. The mounting frame 291 is fixedly mounted on the seventh linear module 28, the second shell 295 is fixedly mounted on the mounting frame 291, the lifting rod 292 is slidably mounted on the mounting frame 291, the first shell 294 and the second shell 295 are threadedly connected, and rotating the first shell 294 can make the first shell 294 move on the second shell 295. The elastic member 293 is preferably a spring, one end of the elastic member 293 contacts the first shell 294, and the other end of the elastic member 293 contacts the lifting rod 292. By adjusting the first shell 294 and the second shell 295, the length of the spring is changed, so that the force of the lifting rod 292 moving upward is inconsistent, which is suitable for different pressure maintaining needs.

[0054] A sensing part 296 is installed on the lifting rod 292, and a sensor 297 is fixedly installed on the mounting frame 291. When the lifting rod 292 moves up and down, the sensing part 296 will move accordingly. When the sensing part 296 moves to the required position, the sensor 297 can sense it, ensuring that the lifting rod 292 moves to the appropriate position and ensuring that the pressure of the elastic part 293 on the lifting rod 292 meets the requirements. The sensing part is an iron sheet, and the sensor 297 is an infrared sensor. When the iron sheet moves upward, it will block the transmitting and receiving end of the infrared sensor.

[0055] The rotating motor 31 is connected to a rotating member 312 through a coaxial reducer 311, and a retaining member 313 is fixedly installed on the motor fixing frame 26. A connecting member 314 is rotatably installed inside the retaining member 313, and the connecting member 314 is provided with a receiving cavity. The rotating member 312 is inserted into the receiving cavity to drive the connecting member 314 to rotate. In the present application, the rotating member 312 is a cross protrusion, and the connecting member 314 is in sliding contact with the inside of the retaining member 313. The retaining member 313 plays a positioning role for the connecting member 314.

[0056] The bottom surface of the retaining member 313 is a wavy surface, and a contact member 315 is fixedly installed on the connecting member 314. The contact member 315 is preferably a ball. There are two contact members 315, and they are symmetrically arranged. When the ball rolls on the wavy surface, the pressing plate 30 will move up and down continuously, thereby acting on the electronic tag and causing the lifting rod 292 to move up and down continuously.

[0057] In one embodiment, the rotating pressing plate 30 can remove the air between the electronic tag and the soft magnetic material, and the pressing plate 30 that moves up and down can make the connection between the electronic tag and the soft magnetic material tighter.

[0058] In another embodiment, the pressing plate moves up and down 30 times more than once so that the sensor 297 senses the sensing element 296. At this time, a counter is connected to determine the number of times the pressure is maintained. That is to say, this application can be based on the pressure holding time or the number of presses.

[0059] The unloading mechanism is designed to work with the loading robot to transfer carrier 2 to the next process. It includes a ninth linear module, a tenth linear module 33 mounted on the ninth linear module, and a gripper cylinder 34 mounted on the moving portion of the tenth linear module 33. The gripper cylinder 34 is used to grip carrier 2. A second camera 35 is mounted on the back of the tenth linear module 33 to capture images of the electronic tags within carrier 2.

[0060] It should be noted here that a metal sheet is provided in the carrier 2, and the soft magnet is adsorbed on the metal sheet. When the power component drives the carrier 2 to move, the electronic tag will shake. If the soft magnet and the electronic tag are not tightly combined, separation will occur, and the second camera 35 will take a picture of it.

[0061] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0062] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A soft magnetic attachment device for electronic tags, characterized by: include: A machine (1) is provided with a flow line, a transfer mechanism for transferring the electronic tag to a carrier (2) on the flow line, an attaching mechanism for attaching the soft magnetic material to the electronic tag, and a pressure maintaining mechanism for maintaining pressure on the electronic tag after the soft magnetic material is attached; The flow line includes: a bracket (16), and a power component for driving the carrier (2) to move; The power assembly includes: a power motor (20), a rocker arm (21), a limit plate (22), a lifting plate (23), a vertical guide plate (24), a horizontal guide plate (25) and a fixing frame (26); The transverse guide plate (25) is slidably mounted on the machine (1), the vertical guide plate (24) is fixedly connected to the transverse guide plate (25), and the lifting plate (23) is mounted on the sliding vertical guide plate (24); a limiting track (221) is provided on the limiting plate (22), one end of the rocker arm (21) is connected to the output shaft of the power motor (20), a long hole (211) is provided on the rocker arm (21), and a limiting member (27) is rotatably mounted on the other end of the rocker arm (21), the limiting member (27) is slidably connected to the inner wall of the long hole (211) through a bearing, an insertion rod is fixedly connected to the lifting plate (23), and a cavity for accommodating the insertion rod is provided on the carrier (2).

2. The soft magnetic attaching device for an electronic tag according to claim 1, characterized in that: The end surface of the limiting member (27) is columnar, and the end surface rolls within the limiting track (221).

3. The soft magnetic attaching device for an electronic tag according to claim 1, wherein: The transfer mechanism comprises: a feed tray (3), a first linear module (4) for driving the feed tray (3) to move, a first suction nozzle (5), a second linear module (6) for driving the first suction nozzle (5) to rise and fall, and a third linear module (7) for driving the second linear module (6) to move closer to or away from the flow line.

4. The soft magnetic attaching device for an electronic tag according to claim 1, wherein: The attachment mechanism comprises: a second suction nozzle (9), a fourth linear module (10) that drives the second suction nozzle (9) to move, a fifth linear module (11) that drives the fourth linear module (10) to move, and a sixth linear module (12) that drives the fifth linear module (11) to move.

5. The soft magnetic attaching device for an electronic tag according to claim 4, characterized in that: A moving plate (14) is fixedly mounted on the moving portion of the fifth linear module (11), the fourth linear module (10) is fixedly mounted on the moving plate (14), and a first camera (15) is mounted on the moving plate (14).

6. The soft magnetic attaching device for an electronic tag according to claim 1, wherein: The pressure-maintaining mechanism comprises: a seventh linear module (28), a pressure-maintaining member (29), a pressing plate (30), and a rotating motor (31) for driving the pressing plate (30) to rotate. The pressure-maintaining member (29) comprises: a mounting frame (291), a lifting rod (292), an elastic member (293), a first shell (294) and a second shell (295). The mounting frame (291) is fixedly mounted on the seventh linear module (28), and the second shell (295) is fixedly mounted on the seventh linear module (28). The lifting rod (292) is slidably mounted on the mounting frame (291), the first shell (294) and the second shell (295) are threadedly connected, and the first shell (294) can be rotated to move the first shell (294) on the second shell (295), one end of the elastic member (293) is in contact with the first shell (294), and the other end of the elastic member (293) is in contact with the lifting rod (292).

7. The soft magnetic attaching device for an electronic tag according to claim 6, characterized in that: The seventh linear module (28) is mounted on the eighth linear module (32).

8. The soft magnetic attaching device for an electronic tag according to claim 7, characterized in that: A to-be-sensed part (296) is mounted on the lifting rod (292), and a sensor (297) is fixedly mounted on the mounting frame (291). When the to-be-sensed part (296) moves to a required position, the sensor (297) senses the to-be-sensed part (296).

9. The soft magnetic attaching device for an electronic tag according to claim 6 or 8, characterized in that: The rotating motor (31) is connected to a rotating member (312), a retaining member (313) is fixedly mounted on the motor fixing frame (26), a connecting member (314) is rotatably mounted inside the retaining member (313), the connecting member (314) is provided with a receiving cavity, the rotating member (312) is inserted into the receiving cavity to drive the connecting member (314) to rotate, and the connecting member (314) is in sliding contact with the inside of the retaining member (313).

10. The soft magnetic attaching device for an electronic tag according to claim 9, characterized in that: The bottom surface of the retaining member (313) is a wavy surface, and a contact member (315) is fixedly mounted on the connecting member (314).

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