A device for detecting abrasion resistance of an electronic tag

Abstract

The application relates to the technical field of electronic tag detection, in particular to a wear resistance detection device for electronic tags, which comprises a base, the base is rotationally provided with a circular turntable, the base is provided with a driving element, the circular turntable is detachably connected with a circular carrier plate, the circular turntable is sleeved with a plurality of connecting rings along the height direction, each connecting ring is outwardly extended with a first permanent magnet, the base is provided with a swing seat, the swing seat is provided with a swing arm, one end of the swing arm is hinged to the swing seat, the other end of the swing arm is rotationally provided with a rotating shaft, the rotating shaft is connected with a grinding wheel, the grinding wheel is movably arranged on the top of the circular carrier plate, and the other end of the swing arm is provided with a pressure relief seat. When the grinding wheel passes through the top surface of the circular carrier plate without the to-be-detected electronic tags, the second permanent magnet passes through the first permanent magnet, an upward thrust is generated on the grinding wheel, a part of the counterweight load is offset, the pressure between the grinding wheel and the top surface of the circular carrier plate is reduced, and the unnecessary wear between the grinding wheel and the circular carrier plate is slowed down.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic tag detection, and in particular to a wear resistance detection device for electronic tags. Background Art

[0002] In the production and application of electronic tags, the wear resistance of the tag is one of the key indicators to measure its performance and service life. Therefore, accurate wear resistance testing of electronic tags is of great significance.

[0003] At present, the industry generally uses wear resistance testing machines to evaluate the wear resistance of materials. When using such testing machines, the test specimens must be prepared into a specific shape and size that meets the requirements of the testing machine, and the material being tested must remain intact. Its size must be larger than the size of the testing machine's carrier to ensure that during the test process, friction parts such as the grinding wheel can continue to contact the sample material, thereby achieving effective testing of the substrate's wear resistance.

[0004] However, as a specialized identification carrier, electronic tags often have varying shapes designed to meet the needs of their specific application scenarios, and are generally small in size, often smaller than the carrier of existing wear resistance testing machines. When testing the wear resistance of electronic tags, their size does not meet the specimen size requirements of existing testing machines, so they are typically affixed to a carrier to form the test specimen. However, this approach results in a discontinuous distribution of the label material on the carrier.

[0005] When using existing wear resistance testing machines to test these electronic tags attached to carriers, the grinding wheel, operating under full load, will not only rub against the electronic tag material but also frequently rub against the exposed carrier surface. This phenomenon significantly shortens the lifespan of the grinding wheel, requiring frequent dressing or replacement, increasing testing costs and operational complexity. Furthermore, the continuous friction between the grinding wheel and the carrier causes its surface condition to gradually deteriorate, resulting in uneven wear and changes in surface roughness. This can seriously affect the accuracy of the wear resistance test results, distorting the test data and failing to truly reflect the wear resistance of the electronic tag itself. Summary of the Invention

[0006] The purpose of the present invention is to provide a wear resistance detection device for electronic tags in view of the above-mentioned deficiencies in the prior art.

[0007] The object of the present invention is achieved through the following technical solution: A wear resistance detection device for an electronic tag, comprising a base; a circular turntable rotatably provided on the base; a driving member for driving the circular turntable to rotate; a circular carrier plate detachably connected to the top surface of the circular turntable;

[0008] The outer peripheral wall of the circular turntable is sleeved with a plurality of connecting rings along the height direction; the connecting rings are frictionally and rotatably connected to the outer peripheral wall of the circular turntable; each connecting ring is provided with a first permanent magnet extending outward;

[0009] The base is provided with a swing seat; the swing seat is provided with a swing arm; one end of the swing arm is hinged to the swing seat; the other end of the swing arm is rotatably provided with a rotating shaft; the rotating shaft is connected to a grinding wheel; the grinding wheel is movably provided on the top of the circular carrier plate; the other end of the swing arm is provided with a decompression seat; the decompression seat is provided with a second permanent magnet; the second permanent magnet is movably provided on the top of the first permanent magnet;

[0010] The magnetic poles on the top surface of the first permanent magnet are the same as the magnetic poles on the bottom surface of the second permanent magnet.

[0011] The present invention is further configured such that a first threaded column is provided at the center of the circular turntable; a first clearance hole is provided through the center of the circular carrier plate; the first threaded column is passed through the first clearance hole; the first threaded column is threadedly connected to a first nut; and the first nut abuts against the top surface of the circular carrier plate.

[0012] The present invention is further configured such that the first permanent magnet is provided with a progressive slope.

[0013] The present invention is further configured such that the grinding wheel is detachably connected to one end of the rotating shaft; and the other end of the rotating shaft is detachably connected to a counterweight wheel.

[0014] The present invention is further configured such that a second threaded column is provided at one end of the rotating shaft; a second clearance hole is provided through the center of the grinding wheel; the second threaded column is passed through the second clearance hole; the second threaded column is threadedly connected to a second nut; and the second nut abuts against the grinding wheel.

[0015] The present invention is further configured such that the swing seat is provided with an adjustment block for lifting movement; the adjustment block is hinged with a dust suction arm; the dust suction arm is provided with a plurality of dust suction holes; the dust suction holes are movably provided on the top of the circular carrier plate.

[0016] The present invention is further configured such that a decompression ring is provided on the top of the decompression seat; the second permanent magnet is provided on the bottom of the decompression seat; a connecting rod is provided between the decompression seat and the swing seat; the decompression ring is sleeved on the other end of the swing arm;

[0017] The center of one end of the swing arm is hinged to the swing seat; the other end of the swing arm is arranged coaxially with the decompression ring; the center of one end of the connecting rod is hinged to the swing seat; the center of the other end of the connecting rod is hinged to the decompression seat;

[0018] The projection of the center of one end of the swing arm and the projection of the center of one end of the connecting rod are arranged on the same vertical line; the projection of the center of the other end of the swing arm and the projection of the center of the other end of the connecting rod are arranged on the same vertical line; the distance between the center of one end of the swing arm and the center of the other end of the swing arm is the same as the distance between the center of one end of the connecting rod and the center of the other end of the connecting rod; the distance between the center of one end of the swing arm and the center of one end of the connecting rod is the same as the distance between the center of the other end of the swing arm and the center of the other end of the connecting rod.

[0019] The present invention is further configured as follows: a movable cavity is provided at the bottom of the swing arm; a driving block is slidably provided in the movable cavity; a telescopic hole is provided on the side of the swing arm close to the connecting rod and connected to the movable cavity; a resisting pin is provided at one end of the driving block; the resisting pin is telescopically movable in the telescopic hole; a first spring is provided between one end of the driving block and the movable cavity; a trigger pin is provided at the bottom of the driving block; the connecting rod is provided with a resisting block for abutting against the top of the resisting pin; the decompression seat is provided with a triggering inclined surface for driving the triggering pin to move;

[0020] A locking assembly is provided between the driving block and the active cavity.

[0021] The present invention is further configured such that the locking assembly includes a sliding block slidably arranged on the top of the driving block, a second spring arranged between the sliding block and the top of the driving block, a locking pin telescopically arranged on the top of the sliding block, a third spring arranged between the locking pin and the sliding block, and a locking groove arranged inside the movable cavity; the locking pin is movably arranged in the locking groove.

[0022] The present invention is further configured such that the locking groove includes a first horizontal groove, a second horizontal groove, a first inclined groove, and a second inclined groove; the length direction of the first horizontal groove, the length direction of the second horizontal groove, and the length direction of the movable cavity are arranged in parallel; one end of the first horizontal groove is connected to one end of the first inclined groove; the other end of the first inclined groove is connected to one end of the second horizontal groove; the other end of the second horizontal groove is connected to one end of the second inclined groove; and the other end of the second inclined groove is connected to the middle of the first horizontal groove;

[0023] The depth of one end of the first horizontal groove is greater than the depth of one end of the first inclined groove; the depth of the other end of the first inclined groove is greater than the depth of one end of the second horizontal groove; the depth of the other end of the second horizontal groove is the same as the depth of one end of the second inclined groove; an inclined surface is provided between the other end of the second inclined groove and the middle of the first horizontal groove.

[0024] Beneficial effects of the present invention: When the grinding wheel passes over the top surface of the circular carrier plate to which no electronic tag to be tested is attached, the second permanent magnet passes over the first permanent magnet, thereby generating an upward thrust on the grinding wheel to offset a portion of the counterweight load, thereby reducing the pressure between the grinding wheel and the top surface of the circular carrier plate and slowing down unnecessary wear between the grinding wheel and the circular carrier plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 is a cross-sectional view of the present invention;

[0027] Figure 3 It is a structural schematic diagram of another perspective of the present invention;

[0028] Figure 4 This is an exploded view of the structure of the circular turntable and the connecting ring of the present invention;

[0029] Figure 5 It is a cross-sectional view of the swing arm and connecting rod of the present invention;

[0030] Figure 6 is a cross-sectional view of the swing arm and connecting rod of the present invention from another perspective;

[0031] Figure 7 This is a schematic diagram of the structure of the present invention after the swing arm hides the counterweight wheel;

[0032] Figure 8 This is a schematic structural diagram of another perspective of the present invention after the swing arm hides the counterweight wheel;

[0033] Figure 9 This is a cross-sectional view of the swing arm of the present invention after the counterweight wheel is hidden;

[0034] Figure 10 This is a schematic diagram of the structure of the swing arm of the present invention after the drive block and the counterweight wheel are hidden;

[0035] Figure 11 yes Figure 10 A partial enlarged view of part A in the middle;

[0036] Among them: 1. Base; 11. Driving member; 2. Circular turntable; 21. First threaded column; 22. Circular carrier plate; 23. First nut; 24. Connecting ring; 25. First permanent magnet; 26. Progressive ramp; 3. Swing seat; 31. Adjustment block; 32. Dust suction arm; 33. Dust suction hole; 4. Swing arm; 41. Active cavity; 42. First spring; 43. Telescopic hole; 5. Rotating shaft; 51. Grinding wheel; 52. Counterweight wheel; 53. Second threaded Column; 54, second nut; 6, decompression seat; 61, second permanent magnet; 62, decompression ring; 63, connecting rod; 64, stop block; 65, trigger slope; 7, driving block; 71, stop pin; 72, trigger pin; 73, sliding block; 74, second spring; 75, locking pin; 76, third spring; 81, first horizontal slot; 82, second horizontal slot; 83, first inclined slot; 84, second inclined slot; 85, inclined surface; 9, electronic tag. DETAILED DESCRIPTION

[0037] The present invention is further described with reference to the following examples.

[0038] Depend on Figures 1 to 11 It can be seen that the wear resistance detection device of an electronic tag described in this embodiment includes a base 1; the base 1 is rotatably provided with a circular turntable 2; the base 1 is provided with a driving member 11 for driving the circular turntable 2 to rotate; the top surface of the circular turntable 2 is detachably connected to a circular carrier plate 22;

[0039] The outer peripheral wall of the circular turntable 2 is sleeved with a plurality of connecting rings 24 along the height direction; the connecting rings 24 are frictionally connected to the outer peripheral wall of the circular turntable 2; each connecting ring 24 is provided with a first permanent magnet 25 extending outward;

[0040] The base 1 is provided with a swing seat 3; the swing seat 3 is provided with a swing arm 4; one end of the swing arm 4 is hinged to the swing seat 3; the other end of the swing arm 4 is rotatably provided with a rotating shaft 5; the rotating shaft 5 is connected to a grinding wheel 51; the grinding wheel 51 is movably mounted on the top of the circular carrier plate 22; the other end of the swing arm 4 is provided with a decompression seat 6; the decompression seat 6 is provided with a second permanent magnet 61; the second permanent magnet 61 is movably mounted on the top of the first permanent magnet 25;

[0041] The magnetic poles on the top surface of the first permanent magnet 25 are the same as the magnetic poles on the bottom surface of the second permanent magnet 61 .

[0042] Specifically, when using the wear resistance detection device for electronic tags 9 described in this embodiment, a plurality of electronic tags 9 to be tested are first affixed to the top surface of the circular carrier plate 22, and then the circular carrier plate 22 is mounted on the top surface of the circular turntable 2 so that the center of the circular carrier plate 22 is aligned with the center of the circular turntable 2;

[0043] Then, the connecting rings 24 are rotated to adjust the positions of the first permanent magnets 25 so that when the grinding wheel 51 passes over the top surface of the circular carrier plate 22 to which the electronic tag 9 to be tested is not attached, the second permanent magnet 61 can be directly opposite the first permanent magnet 25.

[0044] The drive member 11 is then activated, causing the circular turntable 2 and the circular carrier plate 22 to begin rotating. The electronic tag 9 to be tested on the top surface of the circular carrier plate 22 begins to rotate along the center of the circular carrier plate 22. In addition, under the action of friction, the connecting ring 24 rotates synchronously. The electronic tag 9 to be tested is constantly in contact with the grinding wheel 51, thereby performing a wear resistance test on the electronic tag 9 to be tested. When the grinding wheel 51 passes over the top surface of the circular carrier plate 22 without the electronic tag 9 to be tested attached, that is, when the second permanent magnet 61 passes over the first permanent magnet 25, because the magnetic poles of the top surface of the first permanent magnet 25 are the same as the magnetic poles of the bottom surface of the second permanent magnet 61, the first permanent magnet 25 and the second permanent magnet 61 generate an upward thrust on the grinding wheel 51, offsetting a portion of the counterweight load, thereby reducing the pressure between the grinding wheel 51 and the top surface of the circular carrier plate 22 and alleviating unnecessary wear between the grinding wheel and the circular carrier plate 22.

[0045] In the wear resistance detection device for an electronic tag described in this embodiment, a first threaded column 21 is provided at the center of the circular turntable 2; a first clearance hole is provided through the center of the circular carrier plate 22; the first threaded column 21 is inserted into the first clearance hole; the first threaded column 21 is threadedly connected to a first nut 23; and the first nut 23 abuts against the top surface of the circular carrier plate 22. The first clearance hole is not shown in the figure. When the circular carrier plate 22 is installed on the top surface of the circular turntable 2, the first threaded column 21 is inserted into the first clearance hole, and then the first nut 23 is rotated until the first nut 23 abuts against the top surface of the circular carrier plate 22. This completes the installation of the circular carrier plate 22 and the circular turntable 2.

[0046] In the wear resistance detection device for electronic tags described in this embodiment, the first permanent magnet 25 is provided with a progressively inclined surface 26. This configuration allows the upward thrust on the grinding wheel 51 generated between the first permanent magnet 25 and the second permanent magnet 61 to gradually increase or decrease.

[0047] In the wear resistance testing device for electronic tags described in this embodiment, the grinding wheel 51 is detachably connected to one end of the rotating shaft 5; the other end of the rotating shaft 5 is detachably connected to a counterweight wheel 52. By providing the counterweight wheel 52, different pressures can be applied to the electronic tag 9 to be tested according to actual needs.

[0048] In the wear resistance detection device for an electronic tag described in this embodiment, a second threaded post 53 is provided at one end of the rotating shaft 5; a second clearance hole is provided through the center of the grinding wheel 51; the second threaded post 53 is inserted into the second clearance hole; a second nut 54 is threadedly connected to the second threaded post 53; and the second nut 54 abuts against the grinding wheel 51. While the second clearance hole is not shown in the figure, when installing the grinding wheel 51 on the rotating shaft 5, the second threaded post 53 is inserted into the second clearance hole, and the second nut 54 is rotated until the second nut 54 abuts against the grinding wheel 51, completing the installation of the grinding wheel 51 on the rotating shaft 5.

[0049] This embodiment of the electronic tag wear resistance testing device comprises a swing seat 3 with an adjustable block 31, which is hingedly connected to a dust collection arm 32. The dust collection arm 32 is provided with multiple dust collection holes 33, which are movably located on the top of the circular carrier plate 22. This arrangement can absorb material debris generated by friction between the electronic tag 9 under test and the grinding wheel 51 during testing.

[0050] The wear resistance detection device of an electronic tag described in this embodiment is characterized in that a decompression ring 62 is provided on the top of the decompression seat 6; the second permanent magnet 61 is provided at the bottom of the decompression seat 6; a connecting rod 63 is provided between the decompression seat 6 and the swing seat 3; the decompression ring 62 is sleeved on the other end of the swing arm 4; the center of one end of the swing arm 4 is hinged to the swing seat 3; the other end of the swing arm 4 is arranged concentrically with the decompression ring 62; the center of one end of the connecting rod 63 is hinged to the swing seat 3; the center of the other end of the connecting rod 63 is hinged to the decompression seat 6; the projection of the center of one end of the swing arm 4 on the first plane is connected to the connecting rod 63 The projection of the center of one end on the first plane is arranged on the same vertical line; the projection of the center of the other end of the swing arm 4 on the first plane and the projection of the center of the other end of the connecting rod 63 on the first plane are arranged on the same vertical line; the distance between the center of one end of the swing arm 4 and the center of the other end of the swing arm 4 is the same as the distance between the center of one end of the connecting rod 63 and the center of the other end of the connecting rod 63; the distance between the center of one end of the swing arm 4 and the center of one end of the connecting rod 63 is the same as the distance between the center of the other end of the swing arm 4 and the center of the other end of the connecting rod 63; wherein the first plane is parallel to the plane where the side wall of the swing arm 4 is located.

[0051] Specifically, through the above-mentioned arrangement, a parallelogram structure is formed between the vertical line between the projection of the center point of one end of the swing arm 4 on the first plane and the projection of the center point of one end of the connecting rod 63 on the first plane, the vertical line between the projection of the center point of the other end of the swing arm 4 on the first plane and the projection of the center point of the other end of the connecting rod 63 on the first plane, the projection line of the swing arm 4 on the first plane and the projection line of the connecting rod 63 on the first plane, so that the second permanent magnet 61 of the decompression seat 6 is always in a horizontal state, so that no matter whether the thickness of the circular carrier plate 22 changes during operation, the first permanent magnet 25 is always facing the second magnetic ring, thereby improving the stability of the detection test machine.

[0052] In the embodiment of the present invention, a wear resistance detection device for an electronic tag is provided, wherein the bottom of the swing arm 4 is provided with an active cavity 41; a driving block 7 is provided in the active cavity 41 for sliding; a telescopic hole 43 is provided on the side of the swing arm 4 close to the connecting rod 63 and connected to the active cavity 41; a stop pin 71 is provided at one end of the driving block 7; the stop pin 71 is telescopically movable in the telescopic hole 43; a first spring 42 is provided between one end of the driving block 7 and the active cavity 41; a trigger pin 72 is provided at the bottom of the driving block 7; the connecting rod 63 is provided with a stop block 64 for abutting against the top of the stop pin 71; the decompression seat 6 is provided with a trigger slope 65 for driving the trigger pin 72 to move; and a locking assembly is provided between the driving block 7 and the active cavity 41. Specifically, through the above arrangement, when the swing arm 4 is raised, the stop block 64 abuts against the top of the stop pin 71, preventing the swing arm 4 and the connecting rod 63 from swinging downward.

[0053] The wear resistance detection device of an electronic tag described in this embodiment comprises a locking assembly including a sliding block 73 slidably arranged on the top of the driving block 7, a second spring 74 arranged between the sliding block 73 and the top of the driving block 7, a locking pin 75 telescopically arranged on the top of the sliding block 73, a third spring 76 arranged between the locking pin 75 and the sliding block 73, and a locking groove arranged inside the movable cavity 41; the locking pin 75 is movably arranged in the locking groove. The wear resistance detection device of an electronic tag described in this embodiment comprises a locking groove including a first horizontal groove 81, a second horizontal groove 82, a first inclined groove 83 and a second inclined groove 84; the length direction of the first horizontal groove 81, the length direction of the second horizontal groove 82 and the length direction of the active cavity 41 are arranged in parallel; one end of the first horizontal groove 81 is connected to one end of the first inclined groove 83; the other end of the first inclined groove 83 is connected to one end of the second horizontal groove 82; the other end of the second horizontal groove 82 is connected to one end of the second inclined groove 84; the other end of the second inclined groove 84 is connected to the middle of the first horizontal groove 81; the depth of one end of the first horizontal groove 81 is greater than the depth of one end of the first inclined groove 83; the depth of the other end of the first inclined groove 83 is greater than the depth of one end of the second horizontal groove 82; the depth of the other end of the second horizontal groove 82 is the same as the depth of one end of the second inclined groove 84; an inclined surface 85 is provided between the other end of the second inclined groove 84 and the middle of the first horizontal groove 81.

[0054] Specifically, when the swing arm 4 swings downward and the grinding wheel 51 presses against the electronic tag 9 to be tested, the blocking pin 71 contracts in the movable cavity 41 under the action of the first spring 42. At this time, the locking pin 75 is located at the other end of the first horizontal slot 81, and the second spring 74 is in a compressed state. Under the action of the first spring 42 and the second spring 74, the locking pin 75 remains at the other end of the first horizontal slot 81.

[0055] When the swing arm 4 is swung upward, the angle between the decompression seat 6 and the swing arm 4 gradually changes, so that the driving block 7 gradually moves in the direction of the telescopic hole 43, and the resisting pin 71 gradually extends out of the telescopic hole 43. At the same time, the locking pin 75 moves along the first horizontal slot 81. When the locking pin 75 moves to the position of the inclined surface 85, under the action of the second spring 74, the locking pin 75 moves to the second inclined slot 84 and the second horizontal slot 82 until the locking pin 75 falls into the other end of the first inclined slot 83. At this time, the resisting pin 71 extends out of the telescopic hole 43 and resists the bottom of the resisting block 64. At the same time, under the action of the first spring 42 and the second spring 74, the locking pin 75 remains at the position of the other end of the first inclined slot 83. At this time, the swing arm 4 and the connecting rod 63 cannot swing downward, so that the entire system is protected in a stable state.

[0056] When the swing arm 4 continues to swing upward, the decompression seat 6 continues to push the drive block 7 to move in the direction of the telescopic hole 43. At this time, the locking pin 75 moves along the first inclined groove 83 until the locking pin 75 falls into one end of the first horizontal groove 81. Under the action of the first spring 42, the locking pin 75 moves back to the position of the other end of the first horizontal groove 81. At this time, the blocking pin 71 shrinks again in the movable cavity 41, and the swing arm 4 and the connecting rod 63 can be swung downward.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A wear resistance detection device for an electronic tag, characterized by: The invention comprises a base (1); the base (1) is provided with a circular turntable (2) for rotation; the base (1) is provided with a driving member (11) for driving the circular turntable (2) to rotate; the top surface of the circular turntable (2) is detachably connected to a circular carrier plate (22); The outer peripheral wall of the circular turntable (2) is sleeved with a plurality of connecting rings (24) along the height direction; the connecting rings (24) are frictionally connected to the outer peripheral wall of the circular turntable (2); each connecting ring (24) is provided with a first permanent magnet (25) extending outward; The base (1) is provided with a swing seat (3); the swing seat (3) is provided with a swing arm (4); one end of the swing arm (4) is hinged to the swing seat (3); the other end of the swing arm (4) is rotatably provided with a rotating shaft (5); the rotating shaft (5) is connected to a grinding wheel (51); the grinding wheel (51) is movably provided on the top of the circular carrier plate (22); the other end of the swing arm (4) is provided with a decompression seat (6); the decompression seat (6) is provided with a second permanent magnet (61); the second permanent magnet (61) is movably provided on the top of the first permanent magnet (25); The magnetic poles on the top surface of the first permanent magnet (25) are the same as the magnetic poles on the bottom surface of the second permanent magnet (61); A decompression ring (62) is provided on the top of the decompression seat (6); the second permanent magnet (61) is provided on the bottom of the decompression seat (6); a connecting rod (63) is provided between the decompression seat (6) and the swing seat (3); the decompression ring (62) is sleeved on the other end of the swing arm (4); The center of one end of the swing arm (4) is hinged to the swing seat (3); the other end of the swing arm (4) is arranged coaxially with the decompression ring (62); the center of one end of the connecting rod (63) is hinged to the swing seat (3); the center of the other end of the connecting rod (63) is hinged to the decompression seat (6); The projection of the center of one end of the swing arm (4) and the projection of the center of one end of the connecting rod (63) are arranged on the same vertical line; the projection of the center of the other end of the swing arm (4) and the projection of the center of the other end of the connecting rod (63) are arranged on the same vertical line; the distance between the center of one end of the swing arm (4) and the center of the other end of the swing arm (4) is the same as the distance between the center of one end of the connecting rod (63) and the center of the other end of the connecting rod (63); the distance between the center of one end of the swing arm (4) and the center of one end of the connecting rod (63) is the same as the distance between the center of the other end of the swing arm (4) and the center of the other end of the connecting rod (63); The bottom of the swing arm (4) is provided with an active cavity (41); a driving block (7) is slidably provided in the active cavity (41); a telescopic hole (43) communicating with the active cavity (41) is provided on a side of the swing arm (4) close to the connecting rod (63); a resisting pin (71) is provided at one end of the driving block (7); the resisting pin (71) is telescopically movable and arranged in the telescopic hole (43); a first spring (42) is provided between one end of the driving block (7) and the active cavity (41); a triggering pin (72) is provided at the bottom of the driving block (7); the connecting rod (63) is provided with a resisting block (64) for abutting against the top of the resisting pin (71); the decompression seat (6) is provided with a triggering inclined surface (65) for driving the triggering pin (72) to move; A locking assembly is provided between the driving block (7) and the active cavity (41).

2. The wear resistance detection device for an electronic tag according to claim 1, characterized in that: A first threaded column (21) is provided at the center of the circular turntable (2); a first clearance hole is provided through the center of the circular carrier plate (22); the first threaded column (21) is passed through the first clearance hole; the first threaded column (21) is threadedly connected to a first nut (23); the first nut (23) abuts against the top surface of the circular carrier plate (22).

3. The wear resistance detection device for an electronic tag according to claim 1, characterized in that: The first permanent magnet (25) is provided with a progressive slope (26).

4. The wear resistance detection device for an electronic tag according to claim 1, characterized in that: The grinding wheel (51) is detachably connected to one end of the rotating shaft (5); and the other end of the rotating shaft (5) is detachably connected to a counterweight wheel (52).

5. The wear resistance detection device for an electronic tag according to claim 4, characterized in that: A second threaded column (53) is provided at one end of the rotating shaft (5); a second clearance hole is provided through the center of the grinding wheel (51); the second threaded column (53) is passed through the second clearance hole; the second threaded column (53) is threadedly connected to a second nut (54); the second nut (54) abuts against the grinding wheel (51).

6. The wear resistance detection device for an electronic tag according to claim 1, characterized in that: The swing seat (3) is provided with an adjustment block (31) for lifting movement; the adjustment block (31) is hinged with a dust suction arm (32); the dust suction arm (32) is provided with a plurality of dust suction holes (33); the dust suction holes (33) are movably provided on the top of the circular carrier plate (22).

7. The wear resistance detection device for an electronic tag according to claim 1, characterized in that: The locking assembly comprises a sliding block (73) slidably arranged on the top of the driving block (7), a second spring (74) arranged between the sliding block (73) and the top of the driving block (7), a locking pin (75) telescopically arranged on the top of the sliding block (73), a third spring (76) arranged between the locking pin (75) and the sliding block (73), and a locking groove arranged inside the movable cavity (41); the locking pin (75) is movably arranged in the locking groove.

8. The wear resistance detection device for an electronic tag according to claim 7, characterized in that: The locking groove comprises a first horizontal groove (81), a second horizontal groove (82), a first inclined groove (83) and a second inclined groove (84); the length direction of the first horizontal groove (81), the length direction of the second horizontal groove (82) and the length direction of the movable cavity (41) are arranged in parallel; one end of the first horizontal groove (81) is connected to one end of the first inclined groove (83); the other end of the first inclined groove (83) is connected to one end of the second horizontal groove (82); the other end of the second horizontal groove (82) is connected to one end of the second inclined groove (84); the other end of the second inclined groove (84) is connected to the middle of the first horizontal groove (81); The depth of one end of the first horizontal groove (81) is greater than the depth of one end of the first inclined groove (83); the depth of the other end of the first inclined groove (83) is greater than the depth of one end of the second horizontal groove (82); the depth of the other end of the second horizontal groove (82) is the same as the depth of one end of the second inclined groove (84); and an inclined surface (85) is provided between the other end of the second inclined groove (84) and the middle of the first horizontal groove (81).

Images