Magnetizing detection device and magnetizing detection method

Abstract

The invention relates to the technical field of magnetizing detection, in particular to a magnetizing detection device and a magnetizing detection method.The magnetizing detection device comprises a primary magnetizing body, a groove is formed in the left side of the primary magnetizing body, and a motor is fixedly arranged on the rear side of the primary magnetizing body. According to the magnetizing detection device and the magnetizing detection method, magnetized materials are clamped and fixed through a discharging gripper, at the moment, a motor drives a rotating disc and a limiting block to rotate, the limiting block is made to rotate in a long groove, a C-shaped swing strip is driven to swing left and right, and meanwhile through limiting of a C-shaped block, the C-shaped swing strip drives an L-shaped moving rod and the discharging gripper to move left and right; the magnetized materials are moved to the feeding plate, meanwhile, when the L-shaped moving rod moves, the L-shaped moving rod makes contact with the hinge strip, the hinge strip moves leftwards and drives the magnetic pole detection sensor to move leftwards, the magnetized materials are detected, then the production speed of the magnetized materials is increased, and the possibility that delivery of orders is delayed, and the productivity bottleneck occurs is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetization detection, in particular to a magnetization detection device and a magnetization detection method. Background Art

[0002] In industrial production and permanent magnet material applications, non-magnetic permanent magnets such as neodymium iron boron, samarium cobalt and other sintered materials do not have magnetism in their initial state and must undergo a professional magnetization process to exert their functional characteristics. The magnetization process requires the use of special magnetization equipment to generate a strong magnetic field and perform directional adjustments to the internal structure of the material. This key process directly affects the final magnetic performance indicators. After magnetization is completed, professional measuring instruments are required to perform magnetic performance testing to ensure that the magnetic field strength meets the design requirements. In precision application scenarios such as sensors, further testing of the material's magnetic properties is required to verify its performance stability. The entire process needs to be completed in a constant temperature environment, and the material quality is evaluated through professional analysis methods. Finally, a complete quality inspection report is formed as a basis for leaving the factory.

[0003] In modern industrial production, the magnetization process of permanent magnetic materials such as NdFeB magnets typically uses traditional manual operation. Operators need to manually complete multiple key steps: first, the raw materials need to be polarized to determine the magnetization direction, then the materials need to be accurately placed in the magnetization station, and then the magnetization equipment needs to be started for magnetization. Finally, the materials need to be manually removed and sorted for storage. This manual operation mode is not only labor-intensive and inefficient, but also prone to poor product consistency due to human factors. With the surge in demand for high-performance NdFeB materials in industries such as new energy vehicles and smart home appliances, especially the rapid increase in demand for high-end products requiring secondary saturation magnetization, traditional manual production methods have lagged significantly. Its production efficiency is difficult to keep up with the growth rate of market demand, which in turn is prone to problems such as order delivery delays and production capacity bottlenecks.

[0004] In view of this, we propose a magnetization detection device and a magnetization detection method. Summary of the Invention

[0005] The purpose of the present invention is to provide a magnetization detection device and a magnetization detection method to solve the problem proposed in the above background technology that operators need to manually complete multiple key steps: first, the raw materials need to be polarity tested to determine the magnetization direction, and then the materials need to be manually placed at the magnetization station accurately, and then the magnetization equipment is started for magnetization treatment, and finally the materials need to be manually taken and sorted for storage. This manual operation mode is not only labor-intensive and inefficient, but also prone to poor product consistency due to human factors. With the surge in demand for high-performance NdFeB materials in industries such as new energy vehicles and smart home appliances, especially the rapid increase in demand for high-end products that require secondary saturation magnetization, traditional manual production methods have lagged behind significantly, and their production efficiency is difficult to match the growth rate of market demand, which is prone to problems such as order delivery delays and production capacity bottlenecks. To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a magnetization detection device, comprising a primary magnetization body, a groove is provided on the left side of the primary magnetization body, a motor is fixedly provided on the rear side of the primary magnetization body, the front end of the rotating shaft of the motor extends to the interior of the primary magnetization body and is fixedly connected to a moving mechanism for displacing the neodymium iron boron magnet, a primary magnetization discharge bin is provided on the left side of the primary magnetization body, a feeding mechanism is fixedly provided on the top of the primary magnetization discharge bin, and a secondary saturation magnetization body is provided on the left side of the primary magnetization discharge bin.

[0006] Preferably, the moving mechanism includes a rotating disk, which is fixedly arranged at the front end of the motor rotating shaft, and a limit block is fixedly arranged on the front side of the rotating disk. A C-shaped swing bar is arranged inside the groove, and the lower horizontal bar of the C-shaped swing bar is rotatably arranged inside the groove. A long groove that cooperates with the limit block is opened on the front side of the vertical bar of the C-shaped swing bar, and the length of the long groove is equal to the diameter of the rotating disk. The limit block is eccentrically arranged on the front side of the rotating disk.

[0007] Preferably, two C-shaped blocks are fixedly provided on the upper side of the inner wall of the groove, and an L-shaped moving rod is slidingly provided inside the two C-shaped blocks. A concave block is fixedly provided at the bottom of the horizontal bar of the L-shaped moving rod, and the inside of the concave block slides with the side of the upper horizontal bar of the C-shaped swing bar, and a discharging gripper is fixedly provided on the side of the vertical bar of the L-shaped moving rod.

[0008] Preferably, a connecting frame is fixedly provided on the left side of the primary magnetizing body, a Chinese-shaped bar is slidably provided inside the connecting frame, the shape of the inner wall of the connecting frame is Chinese-shaped, a magnetic pole detection sensor is fixedly provided on the front side of the left side of the connecting frame, a hinge bar is fixedly provided on the top of the connecting frame, and a torsion spring is fixedly provided in the middle of the side of the hinge bar.

[0009] Preferably, transmission shafts are fixedly provided on the front and rear sides of the one-time magnetization discharge bin, transmission belts are sleeved on the sides of the two transmission shafts, and a number of partitions are fixedly provided on the sides of the transmission belts, and the transmission belts are connected through two transmission shafts. A touch sensor is fixedly provided on the top of the one-time magnetization discharge bin, a second cylinder is fixedly provided on the rear side of the top of the one-time magnetization discharge bin, and a push plate is fixedly provided on the front side of the telescopic rod of the second cylinder.

[0010] Preferably, the feeding mechanism includes a first cylinder, a feeding plate is fixedly provided at the end of the telescopic rod of the first cylinder, the feeding plate is slidably provided on the upper side of the transmission belt, the right end of the feeding plate is in contact with the side of the touch sensor, and L-shaped plugs are fixedly provided on the front and rear sides of the feeding plate, an L-shaped plate is fixedly provided on the front side of the horizontal block of the L-shaped plug located on the front side, and a first rack is fixedly provided on the top of the L-shaped plate.

[0011] Preferably, an L-shaped groove is provided inside the secondary saturation magnetization body, and the L-shaped groove is slidably matched with the side of the L-shaped plate. A connecting shaft is fixedly provided on the top of the secondary saturation magnetization body, and a gear is fixedly sleeved on the side of the connecting shaft. A second rack is movably inserted into the top of the secondary saturation magnetization body, and the second rack and the first rack are respectively engaged with the gear. Two rectangular grooves are provided inside the secondary saturation magnetization body, and a clamping plate is slidably provided inside the two rectangular grooves. Two tension springs are fixedly provided on the top of the clamping plate, and the top of the tension spring is fixedly matched with the upper side of the inner wall of the rectangular groove. Two slots matching the L-shaped plug-in blocks are provided inside the secondary saturation magnetization body.

[0012] A magnetization detection method for a magnetization detection device comprises the following steps: S1. First, after the material to be magnetized passes through the interior of the primary magnetizing body and is magnetized, the magnetized material is clamped and fixed by the discharge gripper. Then, the rotating shaft of the motor drives the rotating disk and the limit block on its front side to rotate, and the limit block rotates inside the long slot, driving the C-shaped swing bar to swing left and right. At the same time, the L-shaped moving rod and the concave block are limited by the C-shaped block, so that when the C-shaped swing bar swings, it drives the L-shaped moving rod and the discharge gripper at its bottom to move left and right, and moves the magnetized material to the upper side of the feeding plate. At the same time, when the L-shaped moving rod moves to the left, it contacts the hinged bar, causing the hinged bar to move to the left and driving the magnetic pole detection sensor to move to the left to detect the magnetized material. S2. After the magnetized material completes the primary magnetization inspection, when the magnetized material is in an abnormal state, the entire machine stops moving. When the magnetized material is in a normal state, the first cylinder drives the feeding plate to move left, so that the feeding plate drives the magnetized material on its top to move to the inside of the secondary saturation magnetization body. At the same time, the feeding plate drives the L-shaped plate and the first rack to move left, and the gear rotates, and the gear drives the second rack to drive the pressing plate downward. When the feeding plate moves into place, the magnetized material is magnetized for the second time. S3. When the secondary magnetization of the magnetized material is completed, the first cylinder drives the feeding plate and the magnetized material to move to the right, and the pressing plate is reset upward. When the feeding plate moves to the right and is in place, the feeding plate contacts the touch sensor twice. The touch sensor controls the telescopic rod of the second cylinder to drive the push plate to push the secondary magnetized material forward to the upper side of the transmission belt.

[0013] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the magnetized material is clamped and fixed by the discharging gripper, and at this time, the motor drives the rotating disk and its limit block to rotate, and the limit block rotates in the long slot, driving the C-shaped swing bar to swing left and right, and at the same time, through the limitation of the C-shaped block, the C-shaped swing bar drives the L-shaped moving rod and the discharging gripper to move left and right, and the magnetized material is moved to the feeding plate. At the same time, when the L-shaped moving rod moves, it contacts the hinged bar, causing the hinged bar to move to the left and drive the magnetic pole detection sensor to move left, to detect the magnetized material, thereby increasing the production speed of the magnetized material and reducing the possibility of delayed delivery of orders and bottlenecks in production capacity.

[0014] In the present invention, after the magnetized material completes a primary magnetization detection, if the material is in an abnormal state, the machine stops moving. When the magnetized material is in a normal state, the first cylinder drives the feeding plate to move left, so that the feeding plate drives the magnetized material to move into the secondary saturation magnetization main body. At the same time, the feeding plate drives the L-shaped plate and the first rack to move left, and the gear rotates, and the gear drives the second rack to drive the clamping plate downward. When the feeding plate moves into place, the magnetized material is magnetized for the second time, and then the material can be quickly magnetized for the second time, thereby increasing the speed of the secondary magnetization of the material.

[0015] In the present invention, after the secondary magnetization of the material is completed, the first cylinder drives the feeding plate and the magnetized material to move right, and the pressing plate is reset upward. When the feeding plate moves to the right and is in position, the feeding plate contacts the touch sensor twice, and the touch sensor controls the second cylinder to drive the push plate to push the secondary magnetized material forward to the upper side of the transmission belt, so that the secondary magnetized material can be quickly moved, thereby reducing the labor cost required by the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 Schematic diagram of the three-dimensional structure of the primary magnetization body of the present invention; Figure 3 It is a partial three-dimensional structural cross-sectional view of the primary magnetization body of the present invention; Figure 4 It is a partial three-dimensional structural diagram of the moving mechanism of the present invention; Figure 5 It is a partial three-dimensional structure expansion diagram of the connection frame of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the primary magnetization discharge bin of the present invention; Figure 7 It is a partial three-dimensional structural schematic diagram of the primary magnetization discharge bin of the present invention; Figure 8 Schematic diagram of the three-dimensional structure of the secondary saturation magnetized main body of the present invention; Figure 9 The local three-dimensional structure of the secondary saturation magnetization body of the present invention is expanded Figure 1 ; Figure 10 The local three-dimensional structure of the secondary saturation magnetization body of the present invention is expanded Figure 2 .

[0017] In the figure: 1. Primary magnetization body; 101. Connecting frame; 102. Middle-shaped bar; 103. Magnetic pole detection sensor; 104. Hinge bar; 105. Torsion spring; 2. Groove; 3. Motor; 4. Moving mechanism; 401. Rotating plate; 402. Limit block; 403. C-shaped swing bar; 404. Long groove; 405. C-shaped block; 406. L-shaped moving rod; 407. Concave block; 408. Discharging gripper; 5. Primary magnetization discharging bin; 501. Transmission shaft; 50 2. Transmission belt; 503. Partition; 504. Touch sensor; 505. Second cylinder; 506. Push plate; 6. Feeding mechanism; 601. First cylinder; 602. Feeding plate; 603. L-shaped plug; 604. L-shaped plate; 605. First rack; 606. Slot; 7. Secondary saturation magnetization body; 701. Connecting shaft; 702. Gear; 703. Second rack; 704. Rectangular slot; 705. Pressing plate; 706. Tension spring; 707. L-shaped slot. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Please refer to Figures 1 to 10 . The present invention provides a technical solution: a magnetization detection device, including a primary magnetization main body 1, a groove 2 is opened on the left side of the primary magnetization main body 1, a motor 3 is fixedly arranged on the rear side of the primary magnetization main body 1, the front end of the rotating shaft of the motor 3 extends into the interior of the primary magnetization main body 1 and is fixedly connected with a moving mechanism 4 for displacing the neodymium iron boron magnet, a primary magnetization discharge bin 5 is arranged on the left side of the primary magnetization main body 1, a feeding mechanism 6 is fixedly arranged on the top of the primary magnetization discharge bin 5, and a secondary saturation magnetization main body 7 is arranged on the left side of the primary magnetization discharge bin 5. Embodiment 1:

[0020] Please refer to Figures 1 to 7 . This embodiment provides a technical solution: The moving mechanism 4 includes a rotating disk 401, the rotating disk 401 is fixedly arranged at the front end of the rotating shaft of the motor 3, a limiting block 402 is fixedly arranged on the front side of the rotating disk 401, a C-shaped swing bar 403 is arranged inside the groove 2, the lower horizontal bar of the C-shaped swing bar 403 is rotatably arranged inside the groove 2, a long groove 404 matching with the limiting block 402 is opened on the front side of the vertical bar of the C-shaped swing bar 403, the length of the long groove 404 is equal to the diameter of the rotating disk 401, and the limiting block 402 is eccentrically arranged on the front side of the rotating disk 401; Two C-shaped blocks 405 are fixedly arranged on the upper side of the inner wall of the groove 2, an L-shaped moving rod 406 is slidably arranged inside the two C-shaped blocks 405, a concave block 407 is fixedly arranged at the bottom of the horizontal bar of the L-shaped moving rod's 406, the inside of the concave block 407 is slidably matched with the side surface of the upper horizontal bar of the C-shaped swing bar 403, and a discharging gripper 408 is fixedly arranged on the side surface of the vertical bar of the L-shaped moving rod 406; A connecting frame 101 is fixedly arranged on the left side of the primary magnetization main body 1, a middle-shaped bar 102 is slidably arranged inside the connecting frame 101, the inner wall of the connecting frame 101 is middle-shaped, a magnetic pole detection sensor 103 is fixedly arranged on the front side of the left side of the connecting frame 101, a hinged bar 104 is fixedly arranged on the top of the connecting frame 101, and a torsion spring 105 is fixedly arranged in the middle of the side surface of the hinged bar 104; In this embodiment, the L-shaped moving rod 406 can drive the magnetized material to move through the discharging gripper 408 for detection. The middle-shaped bar 102 can move stably inside the connecting frame 101 with a middle-shaped inner wall. At the same time, the magnetic pole detection sensor 103 can sense the change of the intensity and direction of the external magnetic field through built-in magnetic sensitive elements such as Hall elements and magnetoresistive elements, and output an electrical signal corresponding to the magnetic field polarity such as high and low levels, analog voltage or digital signal. When the magnetic pole approaches, the sensor switches the output state according to the magnetic field direction, the N pole triggers a high level, and the S pole triggers a low level; Embodiment 2:

[0021] See also Figures 6 and 7 , this embodiment provides a technical solution: Transmission shafts 501 are fixedly provided on both the front and rear sides of the primary magnetization discharge bin 5. Transmission belts 502 are sleeved on the sides of the two transmission shafts 501, and a number of partitions 503 are fixedly provided on the sides of the transmission belts 502. The transmission belts 502 are connected through the two transmission shafts 501. A touch sensor 504 is fixedly provided on the top of the primary magnetization discharge bin 5. A second cylinder 505 is fixedly provided on the rear side of the top of the primary magnetization discharge bin 5. A push plate 506 is fixedly provided on the front side of the telescopic rod of the second cylinder 505. The feeding mechanism 6 includes a first cylinder 601. A feeding plate 602 is fixedly provided at the end of the telescopic rod of the first cylinder 601. The feeding plate 602 is slidably provided on the upper side of the transmission belt 502. The right end of the feeding plate 602 contacts the side of the touch sensor 504. L-shaped plugs 603 are fixedly provided on the front and rear sides of the feeding plate 602. An L-shaped plate 604 is fixedly provided on the front side of the horizontal block of the front L-shaped plug 603. A first rack 605 is fixedly provided on the top of the L-shaped plate 604. In this embodiment, when the touch sensor 504 is touched, and the touch sensor 504 can be a mechanical contact sensor, the feed plate 602 contacts the side of the touch sensor 504 to control the movement of the second cylinder 505. After the touch sensor 504 is contacted twice by the feed plate 602, the second cylinder 505 drives the push plate 506 to move forward to push the material that has completed the secondary saturation magnetization. At the same time, the feed plate 602 can place the magnetized material, and after the L-shaped plug 603 moves to the inside of the slot 606, it can ensure the parallel stability of the entire feed plate 602. Example 3:

[0022] See also Figures 6 to 10 , this embodiment provides a technical solution: An L-shaped groove 707 is provided inside the secondary saturation magnetization body 7, and the L-shaped groove 707 slides with the side of the L-shaped plate 604. A connecting shaft 701 is fixedly provided on the top of the secondary saturation magnetization body 7, and a gear 702 is fixedly sleeved on the side of the connecting shaft 701. A second rack 703 is movably inserted into the top of the secondary saturation magnetization body 7, and the second rack 703 and the first rack 605 are respectively engaged with the gear 702. Two rectangular grooves 704 are provided inside the secondary saturation magnetization body 7, and a pressing plate 705 is slidingly provided inside the two rectangular grooves 704. Two tension springs 706 are fixedly provided on the top of the pressing plate 705. The top of the tension spring 706 is fixedly matched with the upper side of the inner wall of the rectangular groove 704. Two slots 606 that cooperate with the L-shaped plug-in block 603 are provided inside the secondary saturation magnetization body 7. In this embodiment, when the first cylinder 601 drives the L-shaped plate 604 and the first rack 605 to move leftward, the gear 702 rotates, and the gear 702 can drive the second rack 703 to move downward, pressing the pressing plate 705 downward to fix the material to be subjected to secondary saturation magnetization.

[0023] A magnetization detection method for a magnetization detection device comprises the following steps: S1. First, after the material to be magnetized passes through the interior of the primary magnetizing body 1 and is magnetized, the magnetized material is clamped and fixed by the discharge gripper 408. Then, the rotating shaft of the motor 3 drives the rotating disk 401 and the limit block 402 on its front side to rotate, and the limit block 402 rotates inside the long slot 404, driving the C-shaped swing bar 403 to swing left and right. At the same time, the L-shaped moving rod 406 and the concave block 407 are limited by the C-shaped block 405, so that when the C-shaped swing bar 403 swings, it drives the L-shaped moving rod 406 and the discharge gripper 408 at its bottom to move left and right, and moves the magnetized material to the upper side of the feeding plate 602. At the same time, when the L-shaped moving rod 406 moves to the left, it contacts the hinge bar 104, causing the hinge bar 104 to move to the left and drive the magnetic pole detection sensor 103 to move to the left, thereby detecting the magnetized material. S2. After the magnetized material completes the primary magnetization test, when the magnetized material is in an abnormal state, the entire machine stops moving. When the magnetized material is in a normal state, the first cylinder 601 drives the feeding plate 602 to move left, so that the feeding plate 602 drives the magnetized material on its top to move into the interior of the secondary saturation magnetization body 7. At the same time, the feeding plate 602 drives the L-shaped plate 604 and the first rack 605 to move left when moving, and rotates the gear 702, which drives the second rack 703 to drive the pressing plate 705 to move downward. When the feeding plate 602 moves into place, the magnetized material is magnetized for the second time. S3. After the secondary magnetization of the magnetized material is completed, the first cylinder 601 drives the feeding plate 602 and the magnetized material to move to the right, and the pressing plate 705 is reset upward. When the feeding plate 602 moves to the right and is in position, the feeding plate 602 contacts the touch sensor 504 twice. The touch sensor 504 controls the telescopic rod of the second cylinder 505 to drive the push plate 506 to push the secondary magnetized material forward to the upper side of the transmission belt 502.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetization detection device, comprising a primary magnetization body (1), wherein a groove (2) is provided on the left side of the primary magnetization body (1), characterized in that: A motor (3) is fixedly arranged at the rear side of the primary magnetization main body (1). The front end of the rotating shaft of the motor (3) extends into the primary magnetization main body (1) and is fixedly connected with a moving mechanism (4) for displacing the neodymium iron boron magnet. A primary magnetization discharge bin (5) is arranged on the left side of the primary magnetization main body (1). A feeding mechanism (6) is fixedly arranged at the top of the primary magnetization discharge bin (5). A secondary saturation magnetization main body (7) is arranged on the left side of the primary magnetization discharge bin (5).

2. A magnetization detection device according to claim 1, characterized in that: The moving mechanism (4) includes a rotating disc (401). The rotating disc (401) is fixedly arranged at the front end of the rotating shaft of the motor (3). A limiting block (402) is fixedly arranged at the front side of the rotating disc (401). A C-shaped swinging bar (403) is arranged inside the groove (2). The lower horizontal bar of the C-shaped swinging bar (403) is rotatably arranged inside the groove (2). A long groove (404) matching with the limiting block (402) is arranged at the front side of the vertical bar of the C-shaped swinging bar (403). The length of the long groove (404) is equal to the diameter of the rotating disc (401). The limiting block (402) is eccentrically arranged at the front side of the rotating disc (401).

3. A magnetization detection device according to claim 2, characterized in that: Two C-shaped blocks (405) are fixedly arranged at the upper side of the inner wall of the groove (2). An L-shaped moving rod (406) is slidably arranged inside the two C-shaped blocks (405). A concave block (407) is fixedly arranged at the bottom of the horizontal bar of the L-shaped moving rod (406). The inside of the concave block (407) is slidably matched with the side surface of the upper horizontal bar of the C-shaped swinging bar (403). An unloading gripper (408) is fixedly arranged at the side surface of the vertical bar of the L-shaped moving rod (406).

4. A magnetization detection device according to claim 1, characterized in that: A connecting frame (101) is fixedly arranged on the left side of the primary magnetization main body (1). A middle-shaped bar (102) is slidably arranged inside the connecting frame (101). The inner wall of the connecting frame (101) is middle-shaped. A magnetic pole detection sensor (103) is fixedly arranged at the front side of the left side of the connecting frame (101). A hinged bar (104) is fixedly arranged at the top of the connecting frame (101). A torsion spring (105) is fixedly arranged at the middle of the side surface of the hinged bar (104).

5. The magnetization detection device according to claim 1, characterized in that: Drive shafts (501) are fixedly arranged on both the front and rear sides of the primary magnetization discharge bin (5). A transmission belt (502) is sleeved on the side surfaces of the two drive shafts (501). A plurality of partition plates (503) are fixedly arranged on the side surface of the transmission belt (502). The transmission belt (502) is driven and connected through the two drive shafts (501). A touch sensor (504) is fixedly arranged at the top of the primary magnetization discharge bin (5). A second air cylinder (505) is fixedly arranged at the rear side of the top of the primary magnetization discharge bin (5). A push plate (506) is fixedly arranged at the front side of the telescopic rod of the second air cylinder (505).

6. A magnetization detection device according to claim 5, characterized in that: The feeding mechanism (6) includes a first cylinder (601), a feeding plate (602) is fixedly provided at the end of the telescopic rod of the first cylinder (601), the feeding plate (602) is slidably provided on the upper side of the transmission belt (502), the right end of the feeding plate (602) contacts the side of the touch sensor (504), the front and rear sides of the feeding plate (602) are fixedly provided with L-shaped plugs (603), the front side of the horizontal block of the L-shaped plug (603) located on the front side is fixedly provided with an L-shaped plate (604), and the top of the L-shaped plate (604) is fixedly provided with a first rack (605).

7. A magnetization detection device according to claim 6, characterized in that: An L-shaped groove (707) is provided inside the secondary saturation magnetization body (7), and the L-shaped groove (707) is slidably matched with the side of the L-shaped plate (604). A connecting shaft (701) is fixedly provided on the top of the secondary saturation magnetization body (7), and a gear (702) is fixedly sleeved on the side of the connecting shaft (701). A second rack (703) is movably inserted into the top of the secondary saturation magnetization body (7), and the second rack (703) and the first rack (605) are respectively connected to the gears. (702) is engaged, two rectangular grooves (704) are provided inside the secondary saturation magnetization body (7), and a clamping plate (705) is slidably provided inside the two rectangular grooves (704), and two tension springs (706) are fixedly provided on the top of the clamping plate (705), and the top end of the tension spring (706) is fixedly matched with the upper side of the inner wall of the rectangular groove (704), and two slots (606) are provided inside the secondary saturation magnetization body (7) to match the L-shaped plug (603).

8. A method for using a magnetization detection device, using a magnetization detection device according to any one of claims 1 to 7, characterized in that: The steps include: S1. First, after the material to be magnetized passes through the primary magnetizing body (1) and is magnetized, the magnetized material is clamped and fixed by the discharge gripper (408). Then, the rotating disk (401) and the limit block (402) on its front side are driven to rotate by the rotating shaft of the motor (3). The limit block (402) rotates inside the long slot (404), driving the C-shaped swing bar (403) to swing left and right. At the same time, the L-shaped moving rod ( 406) and the concave block (407), so that when the C-shaped swing bar (403) swings, it drives the L-shaped moving rod (406) and the discharge gripper (408) at its bottom to move left and right, and moves the magnetized material to the upper side of the feeding plate (602). At the same time, when the L-shaped moving rod (406) moves to the left, it contacts the hinge bar (104), causing the hinge bar (104) to move to the left and driving the magnetic pole detection sensor (103) to move to the left, thereby detecting the magnetized material; S2. After the magnetized material completes a magnetization test, when the magnetized material is in an abnormal state, the entire machine stops moving. When the magnetized material is in a normal state, the first cylinder (601) drives the feeding plate (602) to move left, so that the feeding plate (602) drives the magnetized material on its top to move to the inside of the secondary saturation magnetization body (7). At the same time, the feeding plate (602) drives the L-shaped plate (604) and the first rack (605) to move left when moving, and rotates the gear (702). The gear (702) drives the second rack (703) to drive the pressing plate (705) to move downward. When the feeding plate (602) moves into place, the magnetized material is magnetized for the second time. S3. When the secondary magnetization of the magnetized material is completed, the first cylinder (601) drives the feeding plate (602) and the magnetized material to move to the right, and the pressing plate (705) is reset upward. When the feeding plate (602) moves to the right and is in position, the feeding plate (602) contacts the touch sensor (504) twice. The touch sensor (504) controls the telescopic rod of the second cylinder (505) to drive the push plate (506) to push the secondary magnetized material forward to the upper side of the transmission belt (502).

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