A multi-process integrated continuous magnetizing device and method for neodymium iron boron magnets

Abstract

This invention relates to the field of magnetization technology, specifically to a multi-process integrated continuous magnetization equipment and method for neodymium iron boron magnets. By setting up a pad sorting and feeding mechanism between the pad conveyor and the stacking conveyor track, and utilizing a loading station, thickness detection station, and rejection station arranged sequentially on a rotary table, the pads are subjected to online thickness detection. When excess pads are detected, the rejection mechanism removes the extra pads, ensuring that the pads output to the stacking conveyor track are single, qualified pads. This solves the technical problem in existing magnetization equipment where excess or missing pads lead to the inability to separate magnetized products or substandard magnetic properties.

Description

Technical Field

[0001] This invention relates to the field of magnetization technology, specifically to a multi-process integrated continuous magnetization device and magnetization method for neodymium iron boron magnets. Background Technology

[0002] Neodymium iron boron (NdFeB) permanent magnets are widely used in consumer electronics, new energy vehicles, wind power generation, and medical devices due to their excellent magnetic properties. In the production process of NdFeB magnets, sintered blanks and insulating pads are alternately stacked and fed into a magnetizer for saturation magnetization, followed by further processing to form the finished product. During this process, the pads act as separators between adjacent blanks, ensuring that each blank can be independently separated after magnetization.

[0003] Currently, existing NdFeB magnet magnetizing equipment typically uses a vibratory feeder, conveyor line, and stacking device to alternately arrange blank sheets and spacers. However, in actual production, the spacer feeding process has the following technical defects: First, the spacers are thin and lightweight, making them prone to multiple stacking (i.e., multiple spacers piled together) or omissions (i.e., no spacers fed out) during vibratory feeder discharge and conveying, resulting in an abnormal number of spacers in the stack. Second, when there is a lack of spacers between adjacent blank sheets, the two blank sheets are tightly attracted due to strong magnetism after magnetization, making them difficult to separate, which seriously affects the efficiency and yield of subsequent sheet separation processes. Third, when too many spacers are placed between adjacent blank sheets, the interlayer gap of the stack increases, the magnetic circuit reluctance increases, and the magnetic flux of that layer is low after magnetization, resulting in substandard magnetic properties of the product. Fourth, the above-mentioned abnormal spacer feeding often relies on manual sampling or machine shutdown for troubleshooting, which is not only inefficient but also unable to achieve online quality control.

[0004] To address the aforementioned issues, existing technologies lack automated devices capable of online detection, sorting, and correction of gasket feeding. Typically, only optimizing vibratory feeder parameters can reduce the probability of material stacking, but this cannot be completely eliminated. Therefore, how to achieve online detection and anomaly handling during the gasket feeding process has become a pressing technical problem to be solved in this field. Summary of the Invention

[0005] To address the problems existing in the prior art, a multi-process integrated continuous magnetization equipment and method for neodymium iron boron magnets is provided. By setting up a pad sorting and feeding mechanism between the pad conveyor and the stacking conveyor track, and using the pad loading station, thickness detection station and pad rejection station arranged sequentially on the rotary table, the pad thickness is detected online. When extra pads are detected, the rejection mechanism removes the excess pads, ensuring that the pads output to the stacking conveyor track are single qualified pads. This solves the technical problem in existing magnetization equipment where the extra or missing pads lead to the inability to separate the magnetized products or substandard magnetic properties.

[0006] To address the problems of existing technologies, this invention provides a multi-process integrated continuous magnetization device for neodymium iron boron magnets, comprising a magnetizer and a stacking conveyor track passing through the magnetizer. The feeding end of the stacking conveyor track is equipped with a magnetic sheet conveyor, a pad conveyor, and a sheet pushing mechanism. The feeding end of the magnetic sheet conveyor is equipped with a magnetic sheet vibrating plate, and the feeding end of the pad conveyor is equipped with a pad vibrating plate. The device also includes a pad sorting and feeding mechanism disposed between the feeding end of the stacking conveyor track and the discharge end of the pad conveyor. The pad sorting and feeding mechanism includes: a rotary table, rotatably mounted horizontally on the axis between the feeding end of the stacking conveyor track and the discharge end of the pad conveyor; the rotary table has a loading station, a thickness detection station, a rejection station, and a unloading station distributed circumferentially on its circumference; and a pad clamp disposed circumferentially on the rotary table. The gasket fixture is provided with a receiving window and a feed inlet extending radially along the rotary table and communicating with the receiving window. When the gasket fixture rotates with the rotary table to the loading station, the feed inlet is connected to the discharge end of the gasket conveyor. When the gasket fixture rotates with the rotary table to the unloading station, the receiving window is located between the feed end of the stack conveyor track and the working end of the pushing mechanism. The thickness detection mechanism is fixedly set at the thickness detection station of the rotary table and is used to detect the thickness of the gasket in the receiving window of the gasket fixture at that station. The rejection mechanism is fixedly set at the rejection station of the rotary table and is used to reject excess gaskets in the receiving window of the gasket fixture at that station.

[0007] Preferably, at least two rejection stations are provided on the rotary table, and each rejection station is arranged sequentially along the circumference of the rotary table to remove excess gaskets from the receiving window of the gasket fixture one by one.

[0008] Preferably, the thickness detection mechanism includes a cylinder-type contact displacement sensor, which is fixedly installed at the thickness detection station of the rotary table. Its detection rod is arranged in a horizontal direction, with the rod end facing the receiving window of the gasket fixture that is stationed at the thickness detection station.

[0009] Preferably, the rejection mechanism includes: a low-pressure box, fixedly disposed on one side of the rejection station of the rotary table, the inner cavity of which is connected to one side of the receiving window of the gasket fixture that is stopped at the rejection station; a linear cylinder, fixedly disposed on the other side of the rejection station of the rotary table, and arranged opposite to the low-pressure box; and a suction rod, one end of which is fixedly connected to the output rod of the linear cylinder, the end of which faces the other side of the receiving window of the gasket fixture that is stopped at the rejection station.

[0010] Preferably, the chip removal mechanism further includes a receiving box, which is fixedly disposed on one side of the rotary table; the receiving box has a collection port, the opening of which faces the initial position of the suction rod at the chip removal station; the receiving box is also provided with a discharge channel, which is connected to the bottom of the collection port, is arranged at an angle and extends to one side of the rotary table.

[0011] Preferably, the gasket clamp further includes: a clamp base, fixedly disposed on the rotary table, wherein the receiving window and the feed port are both opened on the clamp base, and the receiving window forms two clamping strip mounting positions on opposite sides of the rotary table along the radial direction; two first clamping strips, symmetrically disposed in the two clamping strip mounting positions, and capable of moving in mutually opposite directions; two second clamping strips, symmetrically disposed in the two clamping strip mounting positions, and capable of moving synchronously in a direction away from the corresponding first clamping strip, wherein the edge of the first clamping strip facing the second clamping strip is chamfered; the first clamping strip and the second clamping strip located in the same clamping strip mounting position together form a clamping opening for clamping and fixing the edge of the gasket.

[0012] Preferably, the fixture seat is further provided with a mounting groove extending radially along the rotary table, and the gasket fixture further includes: a synchronizing block, which is slidably disposed in the mounting groove along the radial direction of the rotary table; an elastic clamping element, which is disposed between the synchronizing block and the side wall of the mounting groove away from the receiving window; and two connecting rods, whose two ends are respectively rotatably connected to the synchronizing block and the first clamping strip on the corresponding side.

[0013] Preferably, the clamp base is provided with an installation chamber for installing the second clamping strip. An elastic reset element is provided between the second clamping strip and the chamber wall of the installation chamber away from the first clamping strip. A first chamfered block is provided on the first clamping strip, and a second chamfered block is provided on the second clamping strip. The chamfered surfaces of the first chamfered block and the second chamfered block slide in cooperation. When the two first clamping strips move away from each other, the two second clamping strips overcome the elastic force of the elastic reset element and move away from the first clamping strip simultaneously to increase the opening of the clamping port and allow the pad to be inserted.

[0014] Preferably, the fixture base is further provided with a drive block that slides along the axial direction of the rotary table, the synchronization block is provided with an inclined slot, the drive block slides with the inclined surface of the inclined slot, and the drive block is also provided with a drive column that passes through the fixture base and slides with it. One side of the loading station of the rotary table is provided with an arc-shaped guide plate that is fixed to it, and the two ends of the arc-shaped guide plate are provided with guide chamfers. When the drive column rotates with the rotary table and slides from the chamfer at the end of the arc-shaped guide plate to its guide side, the drive block is displaced along the axial direction of the rotary table, and the synchronization block is moved away from the receiving window through the inclined surface transmission.

[0015] A multi-stage integrated continuous magnetization method for neodymium iron boron magnets, employing a multi-stage integrated continuous magnetization device for neodymium iron boron magnets, includes the following steps: Step 1: The magnetic sheet vibratory feeder and the gasket vibratory feeder are sorted and discharged respectively. The magnetic sheets are sent to the feeding end of the stacking conveyor track by the magnetic sheet conveyor. The gaskets are sent to the loading station by the gasket conveyor and enter the receiving window of the corresponding gasket fixture through the feeding port. Step 2: The rotary table rotates intermittently, moving the gasket fixture carrying the gasket to the thickness detection station. The thickness detection mechanism detects the thickness of the gasket in the receiving window and identifies the number of stacked gaskets. Step 3: The rotary table continues to rotate, transferring the excess number of the stacked gaskets to the rejection station. The rejection mechanism removes the excess gaskets from the receiving window, retaining only a single gasket. Step four: The rotary table moves the gasket fixture carrying the single gasket to the unloading station. The pushing mechanism pushes the gasket into the stacking conveyor track to stack with the magnetic sheet. The stacked material passes through the magnetizer along the stacking conveyor track to complete continuous magnetization.

[0016] The advantages of this invention compared to the prior art are: This application achieves online thickness detection of gaskets by setting a gasket sorting and feeding mechanism between the gasket conveyor and the stacking conveyor track. This mechanism can accurately identify three states: excess gaskets, missing gaskets, and single-piece qualified gaskets. An automatic rejection mechanism removes excess gaskets, ensuring that all gaskets output to the stacking conveyor track are single-piece qualified gaskets. This eliminates the problem of magnetic circuit abnormalities caused by excess gaskets or separation failures caused by missing gaskets at the source.

[0017] The rotary table in this application features multiple gasket clamps that work collaboratively with each workstation to achieve continuous gasket feeding, online detection, automatic correction, and orderly output. The entire production line can handle anomalies without stopping. The function of the unloaded gasket clamps quickly skipping the unloading station avoids line-wide waiting due to individual missing gaskets, ensuring the continuity of production cycle time.

[0018] This gasket sorting and feeding mechanism integrates inkjet printing detection, automatic stacking, continuous magnetization, and fixed-length slitting processes onto the same production line. It achieves fully automated continuous production of NdFeB magnets from raw blanks to finished magnetic sheet assemblies, significantly improving production efficiency and product yield. This equipment eliminates the need for manual sampling and intervention, reducing labor costs while ensuring the feeding quality of each gasket, effectively improving the consistency of magnetic properties and the finished product qualification rate after magnetization. Attached Figure Description

[0019] Figure 1This is a schematic diagram of a multi-process integrated continuous magnetization device for neodymium iron boron magnets according to the present invention.

[0020] Figure 2 This is a perspective view of the pad sorting and feeding mechanism in a multi-process integrated continuous magnetization device for neodymium iron boron magnets according to the present invention, from a first perspective.

[0021] Figure 3 This is a perspective view of the pad sorting and feeding mechanism in a multi-process integrated continuous magnetization device for neodymium iron boron magnets according to the present invention, viewed from a second perspective.

[0022] Figure 4 This is a perspective view of the pad sorting and feeding mechanism in a multi-process integrated continuous magnetization device for neodymium iron boron magnets according to the present invention, from a third perspective.

[0023] Figure 5 This is a three-dimensional exploded view of the rotary table and the chipping mechanism in a multi-process integrated continuous magnetization device for neodymium iron boron magnets according to the present invention, from a first perspective.

[0024] Figure 6 This is a three-dimensional exploded view of the rotary table and the chipping mechanism in a multi-process integrated continuous magnetization device for neodymium iron boron magnets according to the present invention, from a second perspective.

[0025] Figure 7 This is a perspective view of the rotary table in a multi-process integrated continuous magnetization device for neodymium iron boron magnets according to the present invention.

[0026] Figure 8 This is a perspective view of the gasket clamp in a multi-process integrated continuous magnetization device for neodymium iron boron magnets according to the present invention.

[0027] Figure 9 This is a front view of the gasket clamp in a multi-process integrated continuous magnetization device for neodymium iron boron magnets according to the present invention.

[0028] Figure 10 yes Figure 9 A sectional view along the AA direction.

[0029] Figure 11 This is a perspective exploded view of the gasket clamp in a multi-process integrated continuous magnetization device for neodymium iron boron magnets according to the present invention, from a first perspective.

[0030] Figure 12 yes Figure 11 A magnified view of section B.

[0031] Figure 13 This is a perspective exploded view of the pad clamp in a multi-process integrated continuous magnetization device for neodymium iron boron magnets according to the present invention, from a second perspective.

[0032] Figure 14 This is an exploded perspective view of the synchronization block and the drive block in a multi-process integrated continuous magnetization device for neodymium iron boron magnets according to the present invention.

[0033] The diagram is labeled as follows: 1. Magnetizer; 2. Stacked sheet conveyor track; 3. Magnetic sheet conveyor; 4. Gasket conveyor; 5. Pushing mechanism; 6. Magnetic sheet vibratory feeder; 7. Gasket vibratory feeder; 8. Gasket sorting and feeding mechanism; 81. Rotary table; 82. Gasket clamp; 821. Receiving window; 822. Feed inlet; 823. Clamp base; 824. First clamping bar; 825. Second clamping bar; 8261. Synchronizing block; 8264. Inclined slot; 8262. Elastic clamping element; 8263. Connecting rod; 8271. Spring 8272, First oblique block; 8273, Second oblique block; 8281, Drive block; 8282, Drive column; 8283, Arc-shaped guide plate; 83, Thickness detection mechanism; 84, Rejection mechanism; 841, Low-pressure box; 842, Linear cylinder; 843, Suction rod; 844, Receiving box; 8441, Collection port; 8442, Discharge channel; 85, Rotary drive motor; 91, Inkjet printer; 92, Inkjet printing vision inspection camera; 93, Partition conveyor belt; 94, Segmented cylinder. Detailed Implementation

[0034] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0035] like Figures 1 to 4As shown, a multi-process integrated continuous magnetization device for neodymium iron boron magnets includes a magnetizer 1 and a stacking conveyor track 2 passing through the magnetizer 1. The feeding end of the stacking conveyor track 2 is equipped with a magnetic sheet conveyor 3, a pad conveyor 4, and a sheet pushing mechanism 5. The feeding end of the magnetic sheet conveyor 3 is equipped with a magnetic sheet vibrating plate 6, and the feeding end of the pad conveyor 4 is equipped with a pad vibrating plate 7. The device also includes components disposed at the feeding end of the stacking conveyor track 2 and the pad conveyor... 4. A gasket sorting and feeding mechanism 8 between the discharge ends, comprising: a rotary table 81, rotatably mounted horizontally on the axis between the feed end of the stacked conveyor track 2 and the discharge end of the gasket conveyor 4; the rotary table 81 having a loading station, a thickness detection station, a rejection station, and a unloading station distributed circumferentially thereon; and a gasket clamp 82, arranged circumferentially on the rotary table 81, and connected to the loading station, thickness detection station, and discharge station. The chipping station and the chip unloading station correspond to each other; the gasket clamp 82 has a receiving window 821 and a feed inlet 822 extending radially along the rotary table 81 and communicating with the receiving window 821; when the gasket clamp 82 rotates with the rotary table 81 to the chip loading station, the feed inlet 822 is connected to the discharge end of the gasket conveyor 4; when the gasket clamp 82 rotates with the rotary table 81 to the chip unloading station, the receiving window 821 is located corresponding to the stack of chips. Between the feeding end of the conveying track 2 and the working end of the pushing mechanism 5; a thickness detection mechanism 83 is fixedly installed at the corresponding position of the thickness detection station of the rotary table 81, and is used to detect the thickness of the gasket in the receiving window 821 of the gasket clamp 82 that is stationed at the station; a rejection mechanism 84 is fixedly installed at the corresponding position of the rejection station of the rotary table 81, and is used to reject the excess gasket in the receiving window 821 of the gasket clamp 82 that is stationed at the station.

[0036] The equipment includes a magnetizer 1 and a stacking conveyor track 2 passing through the magnetizer 1. The feed end of the stacking conveyor track 2 is equipped with a magnetic sheet conveyor 3, a pad conveyor 4, and a sheet pushing mechanism 5. The feed end of the magnetic sheet conveyor 3 is equipped with a magnetic sheet vibrating plate 6, and the feed end of the pad conveyor 4 is equipped with a pad vibrating plate 7. The equipment also includes a pad sorting and feeding mechanism 8 located between the feed end of the stacking conveyor track 2 and the discharge end of the pad conveyor 4. The pad sorting and feeding mechanism 8 includes a rotary table 81, multiple pad clamps 82, a thickness detection mechanism 83, and a rejection mechanism 84.

[0037] A rotary table 81 is horizontally mounted between the feed end of the stacking conveyor track 2 and the discharge end of the gasket conveyor 4. Along its circumference, the rotary table 81 is sequentially equipped with a loading station, a thickness detection station, a rejection station, and a unloading station. Multiple gasket clamps 82 are distributed along the circumference of the rotary table 81, corresponding to each station. Each gasket clamp 82 has a receiving window 821 and a feed port 822 extending radially along the rotary table 81 and communicating with the receiving window 821.

[0038] When the gasket clamp 82 rotates to the loading station, the feed port 822 is aligned with the discharge end of the gasket conveyor 4; when the gasket clamp 82 rotates to the unloading station, the receiving window 821 is located between the feed end of the stack conveyor track 2 and the working end of the pushing mechanism 5. A thickness detection mechanism 83 is fixedly installed at the thickness detection station to detect the thickness of the gaskets in the receiving window 821. A rejection mechanism 84 is fixedly installed at the rejection station to remove excess gaskets from the receiving window 821. The equipment also includes a rotary drive motor 85 connected to the rotary table 81, an inkjet printer 91 mounted on top of the magnetic sheet conveyor 3 and its downstream inkjet printing vision inspection camera 92, and a partition conveyor belt 93 and a segmented cylinder 94 mounted at the discharge end of the stack conveyor track 2.

[0039] The pusher mechanism 5 includes a pusher cylinder.

[0040] During operation, the gasket vibratory feeder 7 transports the gaskets to the gasket conveyor 4. The gaskets are then conveyed by the gasket conveyor 4 to the loading station of the rotary table 81, where they fall into the receiving window 821 of the corresponding gasket fixture 82. The rotary drive motor 85 drives the rotary table 81 to rotate stepwise, and the gasket fixture 82 carrying the gaskets passes sequentially through the thickness detection station and the rejection station.

[0041] Thickness detection mechanism 83 detects the thickness of the gasket in receiving window 821: if a single gasket is detected, the gasket clamp 82 continues to rotate with the rotary table 81 to the unloading station, and the pushing mechanism 5 pushes the gasket from the rear unloading window to the stacking conveyor track 2; if multiple gaskets are detected stacked, the rotary table 81 rotates the gasket clamp 82 to the rejection station, and the rejection mechanism 84 removes the excess gaskets, keeping only a single gasket before continuing to convey it to the unloading station; If no gasket is detected, the unloaded gasket clamp 82 continues to rotate with the rotary table 81, quickly skipping the unloading station and entering the next cycle. The magnetic sheet vibrating plate 6 transports the blank sheet to the magnetic sheet conveyor 3, the inkjet printer 91 marks the blank sheet with inkjet printing, and the inkjet printing visual inspection camera 92 detects the inkjet printing quality. Qualified products continue to be transported forward.

[0042] After being sorted by the gasket sorting and feeding mechanism 8, the gaskets are output to the stacking conveyor track 2. The pushing mechanism 5 pushes the gaskets to the designated position, where they are alternately stacked with the blanks to form stacked groups. The stacked groups enter the magnetizer 1 via the stacking conveyor track 2 to complete saturation magnetization, forming magnetic sheet wires. The magnetic sheet wires enter the sectioning cylinder 94 station, where they are cut into sections of magnetic sheet assemblies according to a set length and pushed to the partition conveyor belt 93 for output.

[0043] like Figures 5 to 7 As shown, at least two chip removal stations are provided on the rotary table 81. Each chip removal station is arranged sequentially along the circumference of the rotary table 81 to remove excess chips from the receiving window 821 of the chip holder 82 one by one.

[0044] When the thickness detection mechanism 83 detects that the thickness of the gasket in the receiving window 821 exceeds the thickness of a single gasket, it records the number of gasket stacking layers in the gasket fixture 82. The gasket fixture 82 passes through multiple rejection stations sequentially with the rotary table 81. When the gasket fixture 82 reaches the first rejection station, the rejection mechanism 84 removes the outermost excess gasket from the stacked gaskets, reducing its thickness by one layer. Then, the gasket fixture 82 continues to the next rejection station, removing the next layer of excess gasket. After a number of rejection actions corresponding to the number of stacked layers, only a single gasket remains in the gasket fixture 82, which continues to rotate to the unloading station for output.

[0045] like Figure 2 and Figure 3 As shown, the thickness detection mechanism 83 includes a cylinder-type contact displacement sensor, which is fixedly installed at the thickness detection station of the rotary table 81. Its detection rod is arranged in the horizontal direction, and the end of the rod faces the receiving window 821 of the gasket clamp 82 that is stationed at the thickness detection station.

[0046] When the gasket fixture 82 carrying the gasket rotates with the rotary table 81 to the thickness detection station and stops, the detection rod of the cylinder-type contact displacement sensor extends under the drive of the cylinder. The end of the rod extends horizontally into the receiving window 821 of the gasket fixture 82 and makes direct contact with the gasket surface. After contacting the gasket, the detection rod stops moving forward, and the sensor calculates the actual thickness of the gasket based on the extension or displacement of the detection rod. After the detection is completed, the detection rod retracts, and the rotary table 81 continues to rotate, sending the gasket fixture 82 to the next station. Because the detection rod directly contacts the gasket surface, the detection result is not affected by the gasket color, transparency, surface reflection, or ambient light.

[0047] like Figure 5 and Figure 6As shown, the chip rejection mechanism 84 includes: a low-pressure box 841, fixedly disposed on one side of the chip rejection station of the rotary table 81, the inner cavity of which is connected to one side of the receiving window 821 of the pad clamp 82 that is stopped at the chip rejection station; a linear cylinder 842, fixedly disposed on the other side of the chip rejection station of the rotary table 81, and arranged opposite to the low-pressure box 841; and a suction rod 843, one end of which is fixedly connected to the output rod of the linear cylinder 842, the end of which faces the other side of the receiving window 821 of the pad clamp 82 that is stopped at the chip rejection station.

[0048] When the gasket clamp 82 rotates with the rotary table 81 to the rejection station, the low-pressure box 841 continues to operate, generating low pressure (slight negative pressure) in its inner cavity. This low pressure, through one side of the receiving window 821, attracts the gasket inside. The linear cylinder 842 drives the suction rod 843 to extend into the receiving window 821 from the other side. The end of the suction rod 843 contacts the outermost gasket and applies suction force, attracting and removing any excess outermost gasket. Due to the suction effect of the low-pressure box 841 on the inner gasket, the inner gasket (i.e., the gasket closest to the low-pressure box 841) is fixed to the bottom of the receiving window 821 and will not be carried out by the suction rod 843. The low-pressure suction of the low-pressure box 841 is only sufficient to fix the gasket in place, not to remove it.

[0049] like Figure 5 As shown, the chip removal mechanism 84 also includes a receiving box 844, which is fixedly disposed on one side of the rotary table 81. The receiving box 844 has a collection port 8441, the opening of which faces the initial position of the suction rod 843 at the chip removal station. The receiving box 844 also has a discharge channel 8442, which is connected to the bottom of the collection port 8441, is inclined, and extends to one side of the rotary table 81.

[0050] After the suction rod 843 adsorbs excess pads, it retracts to its initial position. When it moves above the collection port 8441, it releases the pads, which fall into the collection port 8441 of the receiving box 844 under gravity. The pads that fall into the collection port 8441 slide down along the inclined discharge channel 8442 and are discharged through the discharge channel 8442 into the waste collection container outside the rotary table 81, completing the automatic collection and discharge of excess pads. The receiving box 844 collects the rejected excess pads, preventing them from scattering inside the equipment or on the work surface, thus maintaining a clean production environment.

[0051] like Figures 8 to 12As shown, the gasket clamp 82 further includes: a clamp base 823, fixedly mounted on the rotary table 81; the receiving window 821 and the feed port 822 are both opened on the clamp base 823; the receiving window 821 forms two clamping strip mounting positions on opposite sides of the rotary table 81 in the radial direction; two first clamping strips 824 are symmetrically arranged in the two clamping strip mounting positions and can move in opposite directions; two second clamping strips 825 are symmetrically arranged in the two clamping strip mounting positions and can move synchronously in the direction away from the corresponding first clamping strip 824; the edge of the first clamping strip 824 facing the second clamping strip 825 is chamfered; the first clamping strip 824 and the second clamping strip 825 located in the same clamping strip mounting position together form a clamping opening for clamping and fixing the edge of the gasket.

[0052] Both the first clamping bar 824 and the second clamping bar 825 have gasket guide bevels on the side facing the feed inlet 822.

[0053] At the loading station, the two second clamping strips 825 simultaneously move away from their corresponding first clamping strips 824, increasing the distance between the first clamping strips 824 and the second clamping strips 825. The gasket enters the receiving window 821 through the feed port 822. Guided by the gasket guide bevel, the edge of the gasket smoothly inserts into the clamping opening between the first clamping strip 824 and the second clamping strip 825. After the gasket is fully inserted, the second clamping strips 825 and the first clamping strip 824 move towards each other, clamping and fixing the edge of the gasket, thus maintaining a stable posture for the gasket during the rotation of the rotary table 81. When the gasket clamp 82 moves to the unloading station, the low-pressure box 841 fixes the inner gasket, and the suction rod 843 attracts the excess outer gasket and pulls it outward. The edge of the outer gasket slides along the chamfered edge of the first clamping bar 824. Due to the guiding effect of the chamfered edge, the outer gasket smoothly detaches from the receiving window 821, while the inner gasket is fixed by the low-pressure box 841 and is not affected by the chamfer, remaining within the receiving window 821. When the gasket clamp 82 with only one gasket moves to the feeding end (unloading station) of the stacking conveyor track 2, the first clamping bar 824 and the second clamping bar 825 move away from each other, releasing the gasket. The pushing mechanism 5 pushes the gasket into the stacking conveyor track 2 from one side of the receiving window 821.

[0054] like Figure 9 , Figure 13 and Figure 14As shown, the fixture base 823 also has a mounting groove extending radially along the rotary disk 81. The gasket fixture 82 further includes: a synchronizing block 8261, which is slidably disposed in the mounting groove along the radial direction of the rotary disk 81; an elastic clamping element 8262, which is disposed between the synchronizing block 8261 and the side wall of the mounting groove away from the receiving window 821; and two connecting rods 8263, whose two ends are respectively rotatably connected to the synchronizing block 8261 and the first clamping strip 824 on the corresponding side.

[0055] At the loading station, the gasket enters the receiving window 821 through the feed port 822. The edge of the gasket pushes against the two first clamping strips 824, causing the two first clamping strips 824 to move in opposite directions. The first clamping strips 824 push the synchronizing block 8261 through the connecting rod 8263 to overcome the elastic force of the elastic clamping element 8262 and slide along the mounting groove away from the receiving window 821. After the gasket is fully inserted, the elastic clamping element 8262 pushes the synchronizing block 8261 to slide in the opposite direction, and pulls the two first clamping strips 824 towards each other through the connecting rod 8263, clamping and fixing the edge of the gasket. At the unloading station, when the pushing mechanism 5 pushes the gasket out of the receiving window 821, the gasket pushes the first clamping strips 824 open again, allowing the gasket to exit smoothly. After the gasket is fully exited, the elastic clamping element 8262 pushes the synchronizing block 8261 to reset, and the first clamping strips 824 return to the clamped position.

[0056] like Figure 13 As shown, the clamp base 823 is provided with an installation chamber for installing the second clamping bar 825. An elastic reset element 8271 is provided between the second clamping bar 825 and the chamber wall away from the first clamping bar 824. A first chamfered block 8272 is provided on the first clamping bar 824, and a second chamfered block 8273 is provided on the second clamping bar 825. The chamfered surfaces of the first chamfered block 8272 and the second chamfered block 8273 slide in cooperation. When the two first clamping bars 824 move away from each other, the two second clamping bars 825 overcome the elastic force of the elastic reset element 8271 and move away from the first clamping bar 824 simultaneously to increase the opening of the clamping port and allow the pad to be inserted.

[0057] At the loading station, the gasket enters the receiving window 821 and pushes the two first clamping strips 824 away from each other. The first clamping strips 824 drive the first beveled block 8272 to move synchronously. The inclined surface of the first beveled block 8272 slides relative to the inclined surface of the second beveled block 8273, converting the lateral movement of the first clamping strip 824 into the lateral movement of the second clamping strip 825. This pushes the two second clamping strips 825 to overcome the elastic force of the elastic reset element 8271 and move synchronously away from the corresponding first clamping strips 824, increasing the opening of the clamping port and allowing the edge of the gasket to be smoothly inserted into the clamping port. After the gasket is fully inserted, the elastic clamping element 8262 pushes the first clamping strips 824 to reset towards each other, and the elastic reset element 8271 pushes the second clamping strips 825 towards the first clamping strips 824 to reset. The first clamping strips 824 and the second clamping strips 825 together clamp the edge of the gasket. When the gasket is pushed out, the first clamping bar 824 opens again. Through the cooperation of the first angled block 8272 and the second angled block 8273, the second clamping bar 825 moves away from the first clamping bar 824 at the same time, so that the clamping opening opens and the gasket is smoothly removed.

[0058] like Figure 14 As shown, the fixture base 823 is also provided with a drive block 8281 that slides along the axial direction of the rotary table 81. The synchronization block 8261 is provided with a slanted slot 8264. The drive block 8281 slides with the slanted surface of the slanted slot 8264. The drive block 8281 is also provided with a drive column 8282 that penetrates the fixture base 823 and slides with it. An arc-shaped guide plate 8283 is provided on one side of the loading station of the rotary table 81 and is fixed thereto. The two ends of the arc-shaped guide plate 8283 are provided with guide chamfers. When the drive column 8282 rotates with the rotary table 81 and slides from the chamfer at the end of the arc-shaped guide plate 8283 to its guide side, the drive block 8281 is displaced along the axial direction of the rotary table 81. Through the slanted surface transmission, the synchronization block 8261 moves in a direction away from the receiving window 821.

[0059] As the rotary table 81 rotates, the drive column 8282 rotates synchronously with it. When the drive column 8282 rotates to the loading station, its end first contacts the chamfer of the arc-shaped guide plate 8283, smoothly transitioning along the chamfer to the guide side of the arc-shaped guide plate 8283. Guided by the guide side, the drive column 8282 displaces axially along the rotary table 81, pushing the drive block 8281 to move axially along the rotary table 81. The drive block 8281, through the inclined surface of the inclined slot 8264, converts the axial displacement into the radial displacement of the synchronizing block 8261, pushing the synchronizing block 8261 to overcome the elastic force of the elastic clamping element 8262 and move away from the receiving window 821. The synchronizing block 8261, through the connecting rod 8263, pulls the two first clamping bars 824 to open in opposite directions, increasing the clamping opening. After the gasket is inserted, the rotary table 81 continues to rotate, the drive column 8282 disengages from the guide side of the arc-shaped guide plate 8283, the elastic clamping element 8262 pushes the synchronizing block 8261 to reset, and the first clamping bar 824 closes to clamp the gasket. After the gasket fixture 82 leaves the loading station, the drive column 8282 disengages from the arc-shaped guide plate 8283, and the drive block 8281 resets under the action of the elastic element or the reset structure.

[0060] A multi-stage integrated continuous magnetization method for neodymium iron boron magnets, employing a multi-stage integrated continuous magnetization device for neodymium iron boron magnets, includes the following steps: Step 1: The magnetic sheet vibratory feeder 6 and the pad vibratory feeder 7 are sorted and discharged respectively. The magnetic sheets are sent to the feeding end of the stacking conveyor track 2 via the magnetic sheet conveyor 3. The pads are sent to the loading station via the pad conveyor 4 and enter the receiving window 821 of the corresponding pad clamp 82 through the feeding port 822. Step 2: The rotary table 81 rotates intermittently to move the gasket clamp 82 carrying the gasket to the thickness detection station. The thickness detection mechanism 83 detects the thickness of the gasket in the receiving window 821 and identifies the number of stacked gaskets. Step 3: The rotary table 81 continues to rotate, and the gasket fixture 82 with an excessive number of stacked pieces is transferred to the rejection station. The rejection mechanism 84 removes the excess gaskets in the receiving window 821, leaving only a single gasket. Step four: The rotary table 81 moves the gasket clamp 82 carrying the single gasket to the unloading station. The pushing mechanism 5 pushes the gasket into the stacking conveyor track 2 to stack with the magnetic sheet. The stacked material passes through the magnetizer 1 along the stacking conveyor track 2 to complete continuous magnetization.

[0061] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A multi-process integrated continuous magnetization device for neodymium iron boron magnets, comprising a magnetizer and a stacking conveyor track passing through the magnetizer, wherein the feeding end of the stacking conveyor track is provided with a magnetic sheet conveyor, a pad conveyor, and a sheet pushing mechanism, the feeding end of the magnetic sheet conveyor is provided with a magnetic sheet vibrating plate, and the feeding end of the pad conveyor is provided with a pad vibrating plate, characterized in that, It also includes a gasket sorting and feeding mechanism disposed between the feed end of the stacked gasket conveyor track and the discharge end of the gasket conveyor, the gasket sorting and feeding mechanism comprising: A rotary table is horizontally mounted between the feed end of the stacked sheet conveying track and the discharge end of the pad conveyor. The rotary table has a loading station, a thickness detection station, a rejection station and a unloading station distributed around its circumference. A gasket clamp is disposed circumferentially on the rotary table, corresponding to the loading station, thickness detection station, rejection station, and unloading station. The gasket clamp has a receiving window and a feed inlet extending radially along the rotary table and communicating with the receiving window. When the gasket clamp rotates with the rotary table to the loading station, the feed inlet is aligned with the discharge end of the gasket conveyor. When the gasket clamp rotates with the rotary table to the unloading station, the receiving window is located between the feed end of the stack conveyor track and the working end of the pusher mechanism. A thickness detection mechanism is fixedly installed at the corresponding position of the thickness detection station of the rotary table, and is used to detect the thickness of the gasket in the receiving window of the gasket fixture that is stationed at the station. The chip removal mechanism is fixedly installed at the chip removal station of the rotary table, and is used to remove excess chips from the receiving window of the chip holder that is stationed at the station.

2. The multi-process integrated continuous magnetization equipment for neodymium iron boron magnets according to claim 1, characterized in that, At least two rejection stations are provided on the rotary table, and each rejection station is arranged sequentially along the circumference of the rotary table to remove excess gaskets from the receiving window of the gasket fixture one by one.

3. The multi-process integrated continuous magnetization equipment for neodymium iron boron magnets according to claim 1, characterized in that, The thickness detection mechanism includes a cylinder-type contact displacement sensor, which is fixedly installed at the thickness detection station of the rotary table. Its detection rod is arranged horizontally, with the end of the rod facing the receiving window of the gasket fixture that is stationed at the thickness detection station.

4. The multi-process integrated continuous magnetization equipment for neodymium iron boron magnets according to claim 1, characterized in that, The rejecting mechanism includes: The low-pressure box is fixedly installed on one side of the chip removal station of the rotary table, and its inner cavity is connected to one side of the cavity of the receiving window of the gasket fixture that is stopped at the chip removal station. A linear cylinder is fixedly installed on the other side of the chipping station of the rotary table, and is arranged opposite to the low-pressure box; The suction rod is fixedly connected at one end to the output rod of the linear cylinder, and the end of the rod faces the other side of the receiving window of the pad clamp that is stopped at the chip removal station.

5. The multi-process integrated continuous magnetization equipment for neodymium iron boron magnets according to claim 4, characterized in that, The chip removal mechanism also includes a receiving box, which is fixedly disposed on one side of the rotary table; The receiving box has a collection port, and the opening of the collection port faces the initial position of the suction rod at the chipping station; The receiving box is also provided with a discharge channel, which is connected to the bottom of the collection port, is arranged at an angle and extends to one side of the rotary table.

6. A multi-process integrated continuous magnetization device for neodymium iron boron magnets according to any one of claims 1-5, characterized in that, The gasket clamp also includes: A clamping base is fixedly mounted on the rotary table. The receiving window and the feed inlet are both opened on the clamping base. The receiving window forms two clamping bar mounting positions on opposite sides along the radial direction of the rotary table. Two first clamping strips are symmetrically arranged in the two clamping strip mounting positions and can move in mutually opposite directions; Two second clamping strips are symmetrically arranged in the two clamping strip mounting positions and can move synchronously in a direction away from the corresponding first clamping strip. The edge of the first clamping strip facing the second clamping strip is chamfered. The first and second clamps, located in the same clamp mounting position, together form a clamping opening for clamping and fixing the edge of the gasket.

7. The multi-process integrated continuous magnetization equipment for neodymium iron boron magnets according to claim 6, characterized in that, The fixture base also has a mounting groove extending radially along the rotary table, and the gasket fixture further includes: A synchronization block is slidably disposed in the mounting groove along the radial direction of the rotary table; An elastic clamping element is disposed between the synchronization block and the side wall of the mounting groove away from the receiving window; Two connecting rods are rotatably connected at both ends to the synchronizing block and the first clamping bar on the corresponding side, respectively.

8. The multi-process integrated continuous magnetization equipment for neodymium iron boron magnets according to claim 6, characterized in that, The clamp base is provided with an installation chamber for installing the second clamping strip. An elastic reset element is provided between the second clamping strip and the chamber wall away from the first clamping strip. A first chamfered block is provided on the first clamping strip, and a second chamfered block is provided on the second clamping strip. The chamfered surfaces of the first chamfered block and the second chamfered block slide in cooperation. When the two first clamping strips move away from each other, the two second clamping strips overcome the elastic force of the elastic reset element and move away from the first clamping strips simultaneously to increase the opening of the clamping port and allow the pad to be inserted.

9. A multi-process integrated continuous magnetization device for neodymium iron boron magnets according to claim 7, characterized in that, The fixture base is also provided with a drive block that slides along the axial direction of the rotary table. The synchronization block is provided with a slanted slot. The drive block slides with the slanted surface of the slanted slot. The drive block is also provided with a drive column that passes through the fixture base and slides with it. One side of the loading station of the rotary table is provided with an arc-shaped guide plate that is fixed to it. The two ends of the arc-shaped guide plate are provided with guide chamfers. When the drive column rotates with the rotary table and slides from the chamfer at the end of the arc-shaped guide plate to its guide side, the drive block is displaced along the axial direction of the rotary table. Through the slanted surface transmission, the synchronization block moves in a direction away from the receiving window.

10. A multi-stage integrated continuous magnetization method for neodymium iron boron magnets, characterized in that, The multi-process integrated continuous magnetization equipment for neodymium iron boron magnets as described in any one of claims 1-5 includes the following steps: Step 1: The magnetic sheet vibratory feeder and the gasket vibratory feeder are sorted and discharged respectively. The magnetic sheets are sent to the feeding end of the stacking conveyor track by the magnetic sheet conveyor. The gaskets are sent to the loading station by the gasket conveyor and enter the receiving window of the corresponding gasket fixture through the feeding port. Step 2: The rotary table rotates intermittently, moving the gasket fixture carrying the gasket to the thickness detection station. The thickness detection mechanism detects the thickness of the gasket in the receiving window and identifies the number of stacked gaskets. Step 3: The rotary table continues to rotate, transferring the excess number of the stacked gaskets to the rejection station. The rejection mechanism removes the excess gaskets from the receiving window, retaining only a single gasket. Step four: The rotary table moves the gasket fixture carrying the single gasket to the unloading station. The pushing mechanism pushes the gasket into the stacking conveyor track to stack with the magnetic sheet. The stacked material passes through the magnetizer along the stacking conveyor track to complete continuous magnetization.

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