Residual magnetic quantity detection assembly of degaussing conveying mechanism and degaussing conveying mechanism

Abstract

The invention discloses a residual magnetic quantity detection assembly of a degaussing conveying mechanism and the degaussing conveying mechanism, and the residual magnetic quantity detection assembly comprises two cylinder supports which are symmetrically arranged on two sides of a conveying guide rail, the tops of the two cylinder supports are provided with slidable sliding parts, the sliding direction is perpendicular to the guiding direction of the conveying guide rail, the two cylinder supports are also provided with cylinders, and the cylinders are arranged on the cylinder supports. The telescopic end of the air cylinder abuts against the sliding part. The two detection probes are correspondingly arranged on the sliding parts respectively; one end of the elastic piece is connected to the cylinder bracket, and the other end is connected to the sliding part. The sliding parts with the detection probes are symmetrically arranged on the two sides of the conveying guide rail, the elastic pieces are further connected between the air cylinder support and the sliding parts, adaptive displacement adjustment can be carried out according to the size of a to-be-detected product in the reset moving process of the sliding parts, and therefore the detection efficiency can be improved on the premise that it is guaranteed that the stroke of the air cylinder is not changed. The device can be compatible with to-be-detected products with various diameters to carry out residual magnetic quantity detection operation.

Description

Technical Field

[0001] This invention belongs to the field of automatic demagnetization technology, specifically, it relates to a residual magnetism detection component and a demagnetization transmission mechanism. Background Technology

[0002] Currently, in the mechanical manufacturing process, most tubular workpieces become magnetized during processing or transportation. Specifically, in mechanical manufacturing scenarios, the magnetization of tubular workpieces (such as steel pipes and bushings) is not accidental, but rather the result of the combined effect of external energy input (magnetic field, stress, heat energy) and the inherent magnetic properties of the material. Essentially, it is a macroscopic manifestation of the transformation of the "magnetic domains" within the workpiece from a disordered state to an ordered state. Furthermore, the special characteristics of tubular structures (thin walls, hollow) further amplify the magnetization effect. Magnetic materials can then interfere with subsequent production processes or equipment, affecting product quality.

[0003] Most existing conveyor systems lack demagnetization capabilities. Traditional demagnetization processes require manual handling to a dedicated demagnetization station, which exposes workers to high-intensity magnetic fields for extended periods, potentially impacting their health. This process is inefficient and carries the risk of incomplete demagnetization or ineffective results, failing to meet the demands of high-quality production. Furthermore, detecting residual magnetism in demagnetized products typically involves manual, handheld testing with individual instruments, resulting in low overall production efficiency and hindering the achievement of high-efficiency, high-quality production requirements.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a residual magnetism detection component for a demagnetizing conveying mechanism. By symmetrically arranging sliding parts with detection probes on both sides of the conveying guide rail, and connecting an elastic element between the cylinder support and the sliding parts, the elastic element rebounds and pulls the detection probes on the sliding parts to reset and move. The return stroke is not directly pulled back by the cylinder. Therefore, during the reset and movement of the sliding parts, the displacement can be adaptively adjusted according to the size of the product to be tested. This ensures that the residual magnetism detection operation can be carried out on products of various diameters without changing the cylinder stroke.

[0006] Another objective of this invention is to provide a demagnetizing transmission mechanism.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is: to provide a residual magnetism detection component for a demagnetizing conveying mechanism, including a frame, and a conveying guide rail arranged along the length of the frame for conveying the product to be tested, including... Two cylinder supports are symmetrically arranged on both sides of the conveyor rail. The top of the two cylinder supports is provided with a sliding part, and the sliding direction is perpendicular to the guide of the conveyor rail. The two cylinder supports are also provided with cylinders, and the extension and retraction ends of the cylinders abut against the sliding parts. Two detection probes are respectively set on the sliding part and are used to fit against the surface of the workpiece to detect the residual magnetism of the workpiece; The elastic element is connected to the cylinder bracket at one end and to the sliding part at the other end. It is used to provide the restoring force for the sliding part to return to its original position after the cylinder pushes the sliding part out.

[0008] Furthermore, the sliding part includes, The detection guide rail is located on the top of the cylinder bracket, and the guide rail of the detection guide rail is perpendicular to the guide rail of the transmission guide rail. The slider is slidably mounted on the detection guide rail. One end of the slider is connected to the detection probe, and the other end protrudes from the end of the detection guide rail and abuts against the extension end of the cylinder.

[0009] Furthermore, the elastic element is a tension spring, one end of which is connected to the cylinder bracket, and the other end of which is connected to the side wall of the end of the slider protruding from the detection guide rail.

[0010] Furthermore, it also includes a limit protection tube, which is vertically connected to the side wall of the slider and covers the outside of the detection probe.

[0011] A demagnetizing transmission mechanism, comprising any of the aforementioned residual magnetism detection components, and further comprising, The tray is movably mounted on the conveyor rail; A transmission assembly, mounted on the frame and connected to the pallet, is used to drive the pallet to move along the guide rail.

[0012] Furthermore, the frame is equipped with multiple drive wheels, wherein the transmission components include, The transmission gear is rotatably mounted on the frame. The chain is wound around multiple drive wheels, and the chain is engaged with the drive teeth. The tray is connected to the chain. The servo motor is mounted on the frame, and its drive end is connected to the transmission gear to drive the transmission gear and drive the chain drive.

[0013] Furthermore, it also includes a tensioning component, disposed on the tray, for tensioning and securing the product to be tested, wherein the tensioning component includes, The expansion disc body has a flat threaded disc rotatably connected inside, and a large gear is fixedly connected to one end of the disc. The small gear is rotatably connected to the flat threaded disk and meshes with the large gear for transmission. Multiple racks are threadedly connected to a planar threaded disc. The racks are arranged in an array around the central circumference of the planar threaded disc, and each rack has an expansion flap connected to its free end.

[0014] Furthermore, positioning seats are provided at both ends of the tray, and the positioning seats are connected to the tensioning assembly to restrict the degree of freedom of the product under test.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: (1) The present invention provides sliding parts with detection probes symmetrically arranged on both sides of the conveying guide rail, and an elastic element is connected between the cylinder bracket and the sliding part. Since the elastic element rebounds and pulls the detection probe on the sliding part to reset and move, the return stroke is not directly pulled back by the cylinder. Therefore, during the reset and movement of the sliding part, the displacement can be adjusted according to the size of the product to be tested. Thus, it can ensure that the residual magnetism detection operation can be carried out on products with multiple diameters without changing the cylinder stroke.

[0016] (2) By setting a limiting protection tube, the limiting protection tube is placed outside the detection probe. The detection probe is flush with or recessed from the opening of the limiting protection tube to ensure that when the slider is reset, only the opening of the limiting protection tube contacts the product to be tested. Thus, the detection probe can be effectively protected by the limiting protection tube during use.

[0017] (3) The present invention sets transmission teeth, chain and servo motor on the frame. The driving force of the servo motor can drive the transmission teeth to rotate. Since the transmission teeth mesh with the chain, the chain can be driven on the transmission wheel. The tray is connected to the chain, and the tray can be pulled to move on the conveyor rail, so that the product to be tested can be transported to the corresponding process position along the conveyor rail.

[0018] (4) By setting up an expansion assembly, the present invention can push out the expansion flap at equal intervals and effectively fix the product to be tested through the coordinated cooperation of the small gear, the large gear, the flat threaded disc and the rack.

[0019] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1This is a schematic diagram of the demagnetizing transmission mechanism of the present invention; Figure 2 yes Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the structure of the tensioning component of the present invention; Figure 4 This is a schematic diagram of the tray structure of the present invention; Figure 5 This is a schematic diagram of the residual magnetism detection component of the present invention.

[0021] In the picture: 1. Framework; 2. Tensioning assembly; 21. Tensioning disc body; 22. Pinion; 23. Gear; 24. Threaded disc; 25. Rack; 26. Expansion flap; 27. Torque rod; 3. Pallet; 31. Rollers; 32. Positioning seat; 4. Demagnetizing device; 5. Conveyor rail; 6. Residual magnetism detection assembly; 61. Cylinder; 62. Tension spring; 63. Detection guide rail; 64. Limit protection tube; 65. Detection probe; 66. Cylinder bracket; 67. Slider; 7. Product testing components; 8. Transmission components; 81. Servo motor; 82. Transmission gears; 83. Transmission wheel; 84. Chain; 9. Pallet detection device.

[0022] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "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 limiting this invention.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] like Figures 1 to 5 As shown, the residual magnetism detection component 6 of the demagnetizing conveying mechanism of the present invention includes at least a frame 1 fixed to the work area. A conveying guide rail 5 is provided along the length of the frame 1 for conveying the product to be tested. Currently, workers are stationed at various workstations to perform demagnetization and residual magnetism detection, resulting in low overall conveying efficiency due to manual operation. Furthermore, manual residual magnetism detection is prone to errors due to the probe of the detection instrument not being in the designated position, leading to inaccurate data and affecting subsequent production processes or equipment, ultimately compromising product quality.

[0027] To address the problems mentioned above, the following improvement measures are proposed: The residual magnetism detection component 6 in this invention includes, Two cylinder supports 66 are symmetrically arranged on both sides of the conveying guide rail 5. The top of the two cylinder supports 66 is provided with a sliding part, and the sliding direction is perpendicular to the guide of the conveying guide rail 5. The two cylinder supports 66 are also provided with cylinders 61, and the extension end of the cylinders 61 abuts against the sliding part. Two detection probes 65 are respectively set on the sliding part and are used to attach to the surface of the workpiece to detect the residual magnetism of the workpiece. The elastic element is connected at one end to the cylinder bracket 66 and at the other end to the sliding part. It is used to provide the restoring force for the sliding part to return to its original position after the cylinder 61 pushes the sliding part out.

[0028] In this invention, cylinder supports 66 are symmetrically arranged on both sides of the conveyor rail 5 of the frame 1, and are quickly fastened by bolts or screws. The cylinder supports 66 are generally L-shaped, with triangular reinforcing ribs at their included angles. A sliding part is laterally arranged at the upper end of the cylinder support 66, with the sliding direction perpendicular to the guide of the conveyor rail 5. A cylinder 61 is mounted on the cylinder support 66, and the telescopic end of the cylinder 61 can push the sliding part outward (away from the conveyor rail 5). A detection probe 65 is arranged on the end of the sliding part closest to the conveyor rail 5, with two detection probes 65 correspondingly positioned. The telescopic ends of the cylinders 61 on both sides can correspondingly drive the detection probes 65 to adjust their position.

[0029] In addition, an elastic element is connected between the cylinder bracket 66 and the sliding part. After the product to be tested is placed on the conveying guide rail 5, the cylinder 61 pushes the sliding part to move away from the conveying guide rail 5. Then, the telescopic end of the cylinder 61 retracts. At this time, the elastic element resets and pulls the sliding part closer to the product to be tested until it comes into contact with the product. At this time, the detection probes 65 on both sides move towards each other and can detect the residual magnetic quantity of the product to be tested.

[0030] Because the elastic element rebounds and pulls the detection probe 65 on the sliding part to reset and move, and the return stroke is not directly pulled back by the cylinder 61, the displacement can be adaptively adjusted according to the size of the product under test during the reset and movement of the sliding part. This ensures that the residual magnetism detection of products with various diameters can be performed without changing the stroke of the cylinder 61. Moreover, the adaptive displacement adjustment does not require manual intervention, and the entire residual magnetism detection is fully automated, resulting in wider detection efficiency.

[0031] Furthermore, the sliding part includes, The detection guide rail 63 is set on the top of the cylinder bracket 66, and the guide of the detection guide rail 63 is perpendicular to the guide of the transmission guide rail 5. The slider 67 is slidably mounted on the detection guide rail 63. One end of the slider 67 is connected to the detection probe 65, and the other end protrudes from the end of the detection guide rail 63 and abuts against the telescopic end of the cylinder 61.

[0032] In this invention, the detection guide rail 63 is bolted to the top of the cylinder bracket 66, and its extension direction is perpendicular to the guide of the conveying guide rail 5. A matching slider 67 is slidably connected to the detection guide rail 63. A detection probe 65 is provided at one end of the slider 67 near the conveying guide rail 5. The detection emission direction of the detection probe 65 is parallel to the sliding direction of the slider 67, ensuring the horizontality of the detection probe 65. A stop is provided at the other end of the slider 67, at least partially protruding from the end of the detection guide rail 63. When the slider 67 returns to its initial point near the conveying guide rail 5, the stop can just contact the detection guide rail 63, effectively limiting the sliding distance of the slider 67 and avoiding uncertainty in the position of the slider 67 or the detection probe 65 in the initial stage.

[0033] Furthermore, the elastic element is a tension spring 62, one end of which is connected to the cylinder bracket 66, and the other end of which is connected to the side wall of the slider 67 protruding from the end of the detection guide rail 63.

[0034] In this invention, the elastic element is preferably a tension spring 62. A hanging rod is provided on the side wall of the cylinder bracket 66 and the slider 67. The hanging rod may have through holes. By passing the hooks at both ends of the tension spring 62 through the through holes, the tension spring 62 can be quickly connected. The through holes effectively prevent the tension spring 62 from detaching during deformation. When the tension spring 62 is fully returned to its original position after being stretched, it pulls the slider 67 back until the stop at the end of the slider 67 is just against the end side wall of the detection guide rail 63.

[0035] Furthermore, it also includes a limit protection tube 64, which is vertically connected to the side wall of the slider 67, and the limit protection tube 64 covers the outside of the detection probe 65.

[0036] In this invention, a locking block is provided at one end of the slider 67 near the conveyor rail 5. A locking hole is provided at the center of the locking block, and an opening is provided on one side of the locking block, which communicates with the locking hole, thereby providing a certain amount of elastic space for the limiting protection tube 64. During assembly, the limiting protection tube 64 is inserted into the locking hole, or the detection probe 65 can be inserted into the locking hole to achieve quick connection. Then, the limiting protection tube 64 is sleeved over the detection probe 65, with the detection probe 65 flush with or partially recessed from the opening of the limiting protection tube 64 to ensure that when the slider 67 resets, only the opening of the limiting protection tube 64 contacts the product under test. Thus, the detection probe 65 can be effectively protected by the limiting protection tube 64 during use.

[0037] The present invention also provides a demagnetizing conveying mechanism comprising the residual magnetism detection component 6 of any of the above embodiments, wherein the demagnetizing conveying mechanism further comprises, The tray 3 is movably mounted on the conveyor rail 5; The transmission assembly 8 is mounted on the frame 1 and connected to the tray 3, and is used to drive the tray 3 to move along the guide rail 5.

[0038] In this invention, a tray 3 is mounted on a conveyor rail 5. The tray 3 is elongated, and a rotatably connected roller 31 is mounted on the bottom of the tray 3, with the roller 31 in contact with the surface of the conveyor rail 5. A transmission assembly 8 is mounted on the frame 1, which provides effective power to the tray 3, thereby moving the tray 3 on the conveyor rail 5. A product to be tested is placed on the tray 3, and the movement of the tray 3 allows the product to be transported to the corresponding process step for operation.

[0039] Furthermore, the frame 1 is provided with a plurality of transmission wheels 83, wherein the transmission assembly 8 includes, The transmission gear 82 is rotatably mounted on the frame 1; Chain 84 is wound around multiple drive wheels 83. Chain 84 is engaged with drive teeth 82. Tray 3 is connected to chain 84. Servo motor 81 is mounted on frame 1, and its drive end is connected to transmission gear 82 to drive transmission gear 82 and drive chain 84.

[0040] In this invention, multiple transmission wheels 83 are arranged on a frame 1 around the conveyor rail 5. Chains 84 are sequentially wound around the transmission wheels 83 for connection. A transmission gear 82 and a servo motor 81 are rotatably mounted on the frame 1, with the drive end of the servo motor 81 connected to the central axis of the transmission gear 82. The driving force of the servo motor 81 drives the transmission gear 82 to rotate. Since the transmission gear 82 meshes with the holes of the chain 84, the chain 84 can be driven on the transmission wheels 83. The tray 3 is connected to the chain 84, which in turn pulls the tray 3 to move along the conveyor rail 5, allowing the product to be tested to be transported along the conveyor rail 5 to the corresponding process position.

[0041] Furthermore, it also includes a tensioning component 2, disposed on the tray 3, for tensioning and fixing the product to be tested, wherein the tensioning component 2 includes, The tensioning disc body 21 has a flat threaded disc 24 rotatably connected inside, and a large gear 23 is fixedly connected to one end of the disc. The small gear 22 is rotatably connected to the expansion disc 21 and meshes with the large gear 23 for transmission. Multiple racks 25 are threadedly connected to a planar threaded disk 24. The multiple racks 25 are arranged in an array around the central circumference of the planar threaded disk 24, and each rack 25 has an expansion flap 26 connected to its free end.

[0042] In this invention, the expansion disc 21 has an annular cavity inside, within which the planar threaded disc 24 rotates. A large gear 23 is fixedly mounted at one end of the planar threaded disc 24, and a rotatable small gear 22 is mounted on the side of the expansion disc 21, meshing with the large gear 23. Simultaneously, an annular planar thread is machined on the other end face of the planar threaded disc 24, on which multiple racks 25 are threaded and meshed. During the rotation of the planar threaded disc 24, the two gears engage through the threaded teeth, allowing the racks 25 to gradually slide along the radial direction of the planar threaded disc 24. The multiple racks 25 are arranged in a circumferential array with the center of the planar threaded disc 24 as the center. Expansion flaps 26 are mounted at the ends of the racks 25, each with an arc-shaped free end; extending and connecting these arcs forms a complete circle. By fitting a tubular product to be tested within the expansion disc, and by rotating the small gear 22, the expansion flaps 26 can be gradually extended and contracted radially outward, thus contacting the inner wall of the product to be tested and achieving fixation. The pinion 22 also has a torque rod 27 at its shaft end, which passes through the side wall of the planar threaded disc 24. When adjusting and fixing the workpiece to be tested, the expansion assembly can be adjusted and the product to be tested can be effectively fixed simply by rotating the torque rod 27.

[0043] Furthermore, both ends of the tray 3 are provided with positioning seats 32, which are connected to the tensioning component 2 to restrict the degree of freedom of the product under test.

[0044] In this invention, positioning seats 32 are provided at both ends of the tray 3. Positioning seats 32 are provided with positioning grooves, which can be used to lock the tensioning component 2, thereby completely limiting the degree of freedom of the tensioning component 2 and the product to be tested.

[0045] Specifically, a demagnetizing device 4 (existing demagnetizing devices 4 are not described in detail here) is installed before the residual magnetism detection component 6 on frame 1. Driven by a servo motor 81, the product to be tested on tray 3 is conveyed to the bottom of the demagnetizing device 4 for demagnetization and then to the residual magnetism detection component 6. The detection probe 65 moves accordingly in the aforementioned manner, thus enabling automatic residual magnetism detection. When the product to be tested is still detected to have magnetism, the detection probe 65 is pulled away by the control cylinder 61, and the servo motor 81 pulls tray 3 back to the starting point for re-demagnetization. Tray detection devices 9 are also installed at the initial and final sections of frame 1. These devices include at least a proximity sensor to detect whether tray 3 is in position. Additionally, a product detection component 7 is installed behind the residual magnetism detection component 6 on frame 1, which automatically detects the presence of a workpiece to be tested using fiber optic beam sensing of obstructions. The entire mechanism is fully automated, requiring no manual intervention, ensuring overall production efficiency and quality.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A residual magnetism detection component for a demagnetizing conveying mechanism, comprising a frame, and a conveying guide rail arranged along the length of the frame for conveying the product to be tested, characterized in that: include, Two cylinder supports are symmetrically arranged on both sides of the conveyor rail. The top of the two cylinder supports is provided with a sliding part, and the sliding direction is perpendicular to the guide of the conveyor rail. The two cylinder supports are also provided with cylinders, and the extension and retraction ends of the cylinders abut against the sliding parts. Two detection probes are respectively set on the sliding part and are used to fit against the surface of the workpiece to detect the residual magnetism of the workpiece; The elastic element is connected to the cylinder bracket at one end and to the sliding part at the other end. It is used to provide the restoring force for the sliding part to return to its original position after the cylinder pushes the sliding part out.

2. The residual magnetism detection component of the demagnetizing conveying mechanism according to claim 1, characterized in that: The sliding part includes, The detection guide rail is located on the top of the cylinder bracket, and the guide rail of the detection guide rail is perpendicular to the guide rail of the transmission guide rail. The slider is slidably mounted on the detection guide rail. One end of the slider is connected to the detection probe, and the other end protrudes from the end of the detection guide rail and abuts against the extension end of the cylinder.

3. The residual magnetism detection component of the demagnetizing conveying mechanism according to claim 2, characterized in that: The elastic element is a tension spring. One end of the tension spring is connected to the cylinder bracket, and the other end of the tension spring is connected to the side wall of the end of the slider protruding from the detection guide rail.

4. The residual magnetism detection component of the demagnetizing conveying mechanism according to claim 3, characterized in that: It also includes a limit protection tube, which is vertically connected to the side wall of the slider and covers the outside of the detection probe.

5. A demagnetizing conveying mechanism, characterized in that: Including the residual magnetism detection component according to any one of claims 1-4, it further includes, The tray is movably mounted on the conveyor rail; A transmission assembly, mounted on the frame and connected to the pallet, is used to drive the pallet to move along the guide rail.

6. The demagnetizing conveying mechanism according to claim 5, characterized in that: The frame is equipped with multiple drive wheels, and the transmission components include, The transmission gear is rotatably mounted on the frame. The chain is wound around multiple drive wheels, and the chain is engaged with the drive teeth. The tray is connected to the chain. The servo motor is mounted on the frame, and its drive end is connected to the transmission gear to drive the transmission gear and drive the chain drive.

7. A demagnetizing conveying mechanism according to claim 6, characterized in that: It also includes a tensioning component, mounted on the tray, for tensioning and securing the product to be tested. The tensioning component includes... The expansion disc body has a flat threaded disc rotatably connected inside, and a large gear is fixedly connected to one end of the disc. The small gear is rotatably connected to the flat threaded disk and meshes with the large gear for transmission. Multiple racks are threadedly connected to a planar threaded disc. The racks are arranged in an array around the central circumference of the planar threaded disc, and each rack has an expansion flap connected to its free end.

8. A demagnetizing conveying mechanism according to claim 7, characterized in that: Both ends of the tray are equipped with positioning seats, which are connected to the tensioning assembly to restrict the degree of freedom of the product under test.

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