A magnet steel sticking mechanism and a magnet steel sticking device

Abstract

The utility model discloses a kind of magnetic steel mechanisms, it includes support and first driving part, the support is equipped with first slide rail module and first sliding table;The first sliding table is equipped with second driving part and laminating block, the laminating block is equipped with magnetic steel positioning slot, the magnetic steel positioning slot is equipped with protective adhesive tape, the driving end of second driving part is equipped with top block.The utility model also discloses a kind of magnetic steel device.The utility model magnetic steel mechanism is by setting protective adhesive tape in the magnetic steel positioning slot of laminating block, and make the laminating part of protective adhesive tape and the spacing between laminating block end face, both avoid magnetic steel material and rigid laminating block end face direct contact, prevent that magnetic steel inserts when because laminating is too tight and produces friction scratch, guarantee the appearance integrity in the process of magnetic steel material insertion, reduce the performance attenuation caused by magnetic steel material damage, guarantee the service performance and service life of magnetic steel material subsequent, guarantee the quality of robot motor.

Description

Technical Field

[0001] This utility model relates to the technical field of magnet-attached steel processing, specifically to a magnet-attached steel mechanism and a magnet-attached steel device. Background Technology

[0002] As a crucial driving unit for the moving joints of a robot, the performance of the robot motor affects the overall accuracy, performance, and lifespan of the robot's motion. Existing robots utilize rotor structures, such as the rotor, motor, robot joint, and robot disclosed in patent application number 202221717393.4. This rotor structure requires attaching magnets to the side surface of the rotor body. Current rotor magnet attachment processes are mostly automated using magnet attachment equipment, such as patent number 202421473208.0, which discloses a robot motor rotor dispensing and magnet attachment device. This device includes a worktable, a dispensing device, a material handling device, and a magnet attachment device. The magnet attachment device includes a magnet tray, a magnet insertion mechanism, a positioning mechanism, and a magnet attachment mechanism. The magnet tray has multiple magnet feeding slots and an adjustable positioning component. The material handling device includes a moving mechanism, a lifting mechanism, a rotating mechanism, and an ejection component. This invention achieves automated dispensing, moving, and magnet-attaching of a robot motor rotor by setting up a dispensing device, a material handling device, and a magnet-attaching device. An adjustable positioning component is used for positioning the magnet material, ensuring stable feeding. An ejection component is used to prevent the robot motor rotor from being fixed in the rotor positioning fixture due to pressing or glue curing during processing, improving material unloading efficiency. The magnet-attaching device in this robot motor rotor dispensing and magnet-attaching equipment is mainly used for conveying, inserting, and attaching magnets, ensuring efficient assembly. However, this magnet-attaching device has the following problems: In existing magnet-attaching devices, the magnet positioning slot of the magnet-attaching component is used for positioning and inserting the magnet material. However, when the magnet material is inserted into the magnet positioning slot, the inner and outer surfaces of the magnet and the inner end face of the magnet positioning slot are not aligned. Under the influence of magnetic attraction, when the magnetic material moves downwards, the inner surface of the magnetic material is inserted into the inner end face of the magnetic positioning slot, causing scratches on the inner surface of the magnetic material. These scratches result in marks on the magnetic material, which may affect its subsequent performance and lifespan, impacting the quality of the robot motor. Furthermore, the insertion port of the magnetic material tray in existing magnetic bonding devices is used for inserting individual magnetic materials into the magnetic bonding assembly. There is no protective component for the outer surface of the magnetic material inside the insertion port. After the magnetic material moves to the insertion port, it is tightly attached to the inner end face of the insertion port. Due to the lack of gaps, the insertion action causes scratches on the outer surface of the magnetic material. These scratches or marks damage the appearance of the magnetic material, which may lead to a decrease in its magnetic properties, affecting its subsequent performance and lifespan, and ultimately impacting the quality of the robot motor. Utility Model Content

[0003] This utility model addresses the shortcomings of current technology by providing a magnet-applying mechanism and device. It aims to solve the technical problem that existing magnet-applying mechanisms and devices lack surface protection, resulting in scratches and damage to the magnet material during insertion, which may lead to a decrease in its magnetic properties.

[0004] The technical solution adopted by this utility model to achieve the above objectives is as follows: A magnet-attaching mechanism is fixed to a platform or bottom. The magnet-attaching mechanism includes a support, one end of which is provided with a first driving member fixedly connected to it. The support also includes a first slide rail module, which has a first slide table slidably connected to it. The first slide table is connected to the driving end of the first driving member. The first slide table has a second driving member and an attaching block. The attaching block has a magnet positioning slot, which has a protective strip for protecting the magnet. The attaching block also has a sliding cavity penetrating the attaching block. The driving end of the second driving member has a top block, which is disposed in the sliding cavity.

[0005] As a further improvement, the magnetic steel positioning slot is provided on the end face of the bonding block, the top of the magnetic steel positioning slot is provided with an insertion port for inserting the magnetic steel, and the bottom of the magnetic steel positioning slot is provided with a limiting block for limiting and positioning the insertion of the magnetic steel.

[0006] As a further improvement, the magnetic positioning slot is provided with two opposing first slots at the rear, and the insertion port is provided with a second slot at the rear. The ends of the second slots are respectively connected and communicated with the first slots. The protective strip includes two opposing insert parts and a fixing part. The two insert parts are respectively disposed in the first slots, and the fixing part is disposed in the second slot. As a further improvement, the connection between the insert part and the fixing part is provided with a guide part; the insert part is provided with a fitting part that fits with the magnet when it is inserted, and there is a gap between the fitting part and the end face of the fitting block.

[0007] As a further improvement, the distance of the spacing is no greater than 2mm.

[0008] As a further improvement, a first guide portion is provided at both ends of the top of the insertion port.

[0009] A magnet-applying device includes multiple magnet-applying mechanisms.

[0010] As a further improvement, the magnet-attaching device includes a bracket, an insertion mechanism, and a material-arranging mechanism. The platform is mounted on the bracket and has a central hole. The bottom of the platform has multiple fixed seats arranged in a circular array. The magnet-attaching mechanism is mounted and fixed in the fixed seats, and the attaching block faces the central axis of the central hole.

[0011] As a further improvement, the upper surface of the platform is also provided with multiple material troughs for placing magnetic steel materials. The material troughs are respectively arranged above the magnetic steel attaching mechanism. The end of the material trough near the central hole is provided with a discharge port, and the other end of the material trough is provided with a feed port. The discharge port is provided with a magnetic insertion port that runs from top to bottom through the platform. The end face of the magnetic insertion port near the central hole is provided with two opposing first protective rubber strips. The end faces of the first protective rubber strips near the central hole are detachably connected. A positioning groove is also provided between the two first protective rubber strips. The first protective rubber strips are provided with a first bonding part facing the feed port. A first gap is provided between the first bonding part and the end near the central hole.

[0012] As a further improvement, the insertion mechanism includes a third driving member, a third support, and a third insertion assembly. The third support is provided with a third top plate, and the third driving member is disposed on the third top plate, with the center of the third driving member and the center of the central hole on the same central axis. The third top plate is provided with multiple guide rod assemblies. The third insertion assembly includes a third fixing plate and multiple insertion rods. The third fixing plate is connected to the driving end of the third driving member and the multiple guide rod assemblies and is disposed below the third top plate. The multiple insertion rods are disposed and fixed on the outer wall of the third fixing plate and are disposed above the magnetic insertion port. Each insertion rod is provided with a positioning strip that mates with the positioning slot.

[0013] As a further improvement, a circular groove is provided at the bottom of the central hole, and the material straightening mechanism includes a fourth driving member and a fourth pressing block. The fourth driving member is disposed and fixed on the central hole, and the center of the fourth driving member and the center of the central hole are on the same central axis. The fourth pressing block is disposed in the circular groove and connected to the driving end of the fourth driving member.

[0014] As a further improvement, the distance of the first spacing is no greater than 2mm.

[0015] Compared with the prior art, the above-mentioned technical solutions of the magnet-applying mechanism and magnet-applying device provided in the embodiments of this utility model have at least one of the following technical effects: 1. This utility model's magnet-attaching mechanism incorporates a detachable protective strip within the magnet positioning slot of the bonding block. A gap of no more than 2mm is maintained between the adhesive portion of the protective strip and the end face of the bonding block. This prevents direct contact between the magnet and the rigid bonding block's end face, and also prevents friction and scratches caused by excessive tightness during magnet insertion. Furthermore, the protective strip comprises an insert portion and a U-shaped fixing portion, positioned via a first and second slot, ensuring its stable position and preventing displacement due to the insertion force of the magnet. This further guarantees the integrity of the magnet's appearance during insertion, reduces performance degradation caused by magnet damage, ensures the subsequent performance and lifespan of the magnet, and guarantees the quality of the robot motor.

[0016] 2. The bottom of the magnetic steel positioning slot of this utility model is provided with a detachable and position-adjustable limiting block. The limiting block is connected to the threaded hole of the fitting block through a straight groove. The installation position can be adjusted along the straight groove according to the thickness of the magnetic steel material. It can adapt to magnetic steel materials of different specifications without replacing the entire positioning module.

[0017] 3. The insertion port of the magnet-attaching device of this utility model is provided with a first protective rubber strip to provide cushioning and prevent scratches. When the magnet material moves towards the discharge port, a distance difference is formed between the end face of the magnet material and the end face of the insertion port near the center hole. This prevents the magnet material from completely adhering to the end face of the insertion port near the center hole, thereby preventing scratches caused by the magnet material adhering to the end face of the insertion port near the center hole during the insertion process. This ensures the appearance integrity of the magnet material during the insertion process, reduces performance degradation caused by damage to the magnet material, guarantees the subsequent performance and service life of the magnet material, and ensures the quality of the robot motor. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the magnet attaching mechanism in this embodiment; Figure 2 This is a schematic diagram of the bonding block in this embodiment; Figure 3 This is a top view of the bonding block in this embodiment; Figure 4 This is an exploded view of the bonding block in this embodiment; Figure 5 This is a schematic diagram of the magnet attaching device in this embodiment; Figure 6 This is an exploded view of the magnet attaching device in this embodiment; Figure 7 This is an enlarged schematic diagram of the magnetic port of the platform in this embodiment. Detailed Implementation

[0020] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0021] See appendix Figures 1-4 A magnet-attaching mechanism 1 is fixed on or at the bottom of a platform 10. The magnet-attaching mechanism 1 includes a support 2. One end of the support 2 is provided with a first driving member 3 fixedly connected. Preferably, the support has a first fixing block, and the first driving member 3 is fixed on the first fixing block. The first fixing block has an opening for the first slide table 21 to perform a backward movement. The first driving member 3 is preferably a cylinder. The first driving member 3 is used to control the attaching block 23 on the first slide table 21 to move towards the rotor material direction to achieve a feeding action. The support 2 also has a first slide rail module 20. The first slide rail module 20 is preferably a slider assembly and a slide rail. The slider is set and fixed on the support 2, and the slide rail is slidably connected to the slider assembly. The first slide rail module 20 has a first slide table 21 slidably connected. The first slide table 21 is fixed on the end of the slide rail. The first slide table 21 is connected to the driving end of the first driving member 3, that is, the driving end of the first driving member 3 is connected to the second driving member 21. 2. Connection, thereby controlling the first slide table 21 to move back and forth along the direction of the first slide rail module 20; the first slide table 21 is provided with a second drive member 22 and a bonding block 23, the bonding block 23 is provided with a magnet positioning slot 230, the magnet positioning slot 230 is provided with a protective rubber strip 231 for protecting the magnet, the bonding block 23 is also provided with a sliding cavity 232 penetrating the bonding block 23, the sliding cavity 232 is preferably a rectangular sliding cavity, and both ends of the sliding cavity 232 are provided with openings, the second drive The drive end of component 22 is provided with a top block 220. The top block 220 is preferably a rectangular strip that cooperates with the rectangular sliding cavity. The second drive component 22 is preferably a cylinder. The top block 220 is disposed in the sliding cavity 232 and moves back and forth along the sliding cavity 232 under the control of the second drive component 22. When the top block 220 moves toward the magnet positioning slot 230, it pushes the magnet material in the magnet positioning slot 230 out of the magnet positioning slot 230 and attaches it to the outer wall of the rotor material.

[0022] See appendix Figure 4The magnetic steel positioning slot 230 is disposed on the end face of the bonding block 23. The top of the magnetic steel positioning slot 230 is provided with an insertion port 230a for inserting a magnetic steel. The bottom of the magnetic steel positioning slot 230 is provided with a limiting block 233 for limiting and positioning the inserted magnetic steel. The limiting block 233 is detachably connected to the bonding block 23. The bottom of the bonding block 23 is provided with two oppositely arranged threaded holes. The limiting block 233 is provided with two oppositely arranged straight slots. Each straight slot is provided with a locking screw. The locking screws are respectively connected to the threaded holes and fixed to the bottom of the limiting block 233. The straight slots are used to adjust the position as needed, so that the magnetic steel positioning slot 230 can be used to place magnetic steel materials of different thicknesses.

[0023] The magnetic positioning slot 230 has two opposing first slots 230b at its rear, and the insertion port 230a has a second slot 230c at its rear. The second slot 230c preferably has a U-shaped structure. This U-shaped structure ensures that the position of the first slots 230b will not shift due to pushing force. The ends of the second slot 230c are connected to the first slots 230b. The protective strip 231 includes two opposing insert portions 231a and a fixing portion 231b. The two insert portions 231a are respectively disposed within the first slots 230b. The fixing part 231b is disposed in the second slot 230c. The end face of the bonding block 23 preferably has an end face made of magnetic material. The first slot 230b and the second slot 230c are used to make the protective strip 231 detachably connected for easy replacement. The fixing part 231b preferably has a U-shaped structure. The fixing part 231b is used to ensure the positioning position of the insert part 231a, thereby preventing the magnetic material from moving when it is inserted into the magnetic positioning slot 230, which would cause the position of the subsequent magnetic material in the magnetic positioning slot 230 to shift, thus ensuring the efficiency and quality of the subsequent magnetic bonding process. The connection between the insert portion 231a and the fixing portion 231b is provided with a guide portion 231c, which is preferably an arc surface. The insert portion 231a is provided with a fitting portion 231d that fits with the magnet when it is inserted. There is a gap 231e between the fitting portion 231d and the end face of the fitting block 23. The gap 231e is not greater than 2mm, preferably 0.3mm. The gap 231e is used to ensure the distance 231e between the magnet material and the end face of the fitting block 23, preventing the magnet material from completely fitting the end face of the fitting block 23. This prevents the magnet material from being scratched when it is inserted due to fitting the end face of the fitting block 23, ensuring the appearance of the magnet material, preventing scratches from affecting the performance of the magnet material, and ensuring the quality of use after subsequent assembly.

[0024] Both ends of the top of the insertion port 230a are provided with a first guide portion 230e. The first guide portion 230e is preferably inclined. The first guide portion 230e is used to guide the magnet when it is inserted, so as to ensure the position of the magnet material when it is inserted into the magnet positioning slot 230, and to ensure the quality and efficiency of subsequent magnetization.

[0025] See appendix Figures 5-7 A magnet-applying device 4 includes multiple magnet-applying mechanisms 1. The device 4 includes a support 5, an insertion mechanism 6, and a material-aligning mechanism 7. A platform 10 is mounted on the support 5 and has a central hole 100. The bottom of the platform 10 has multiple fixed seats 101 arranged in a circular array. The magnet-applying mechanism 1 is mounted and fixed within the fixed seats 101, with the applying block 23 facing the central axis of the central hole 100. The upper surface of the platform 10 also has multiple material troughs 102 for placing magnet materials. The material troughs 102 are respectively configured with… Above the magnet attaching mechanism 1, the end of the material trough 102 near the center hole 100 is provided with a discharge port 103, and the other end of the material trough 102 is provided with a feed port 104. The discharge port 103 is provided with a magnet insertion port 105 that penetrates the platform 10 from top to bottom. The end face of the magnet insertion port 105 near the center hole 100 is provided with two opposing first protective rubber strips 8. The end faces of the first protective rubber strips 8 near the center hole 100 are detachably connected. A positioning groove 105a is also provided between the two first protective rubber strips 8. The positioning groove 105a... A mounting groove is provided at the rear, which guides the magnetic material to move towards the central hole 100. The magnetic material can be made of iron or a magnet. The magnetic material forms a magnetic attraction with the magnetic material, allowing the magnetic material to move automatically towards the insertion port 105 without a pushing mechanism. The first protective strip 8 has a first bonding portion 80 facing the feed inlet 104. A first gap 81 is provided between the first bonding portion 80 and the end near the central hole 100. The distance of the first gap 81 is not greater than 2mm. Preferably, the first gap 81 is... The first protective strip 8, with a diameter of 0.3mm, provides cushioning and scratch protection. When the magnetic material moves towards the discharge port 103, a distance difference is formed between the end face of the magnetic material and the end face of the insertion port 105 near the center hole 100. This prevents the magnetic material from completely adhering to the end face of the insertion port 105 near the center hole 100, thereby preventing scratches caused by the magnetic material adhering to the end face of the insertion port 105 near the center hole 100 during insertion. This ensures the appearance of the magnetic material, prevents scratches from affecting its performance, and guarantees the quality of use after subsequent assembly.

[0026] The insertion mechanism 6 includes a third driving member 60, a third support 61, and a third insertion assembly 62. The third support 61 is provided with a third top plate 63. The third driving member 60 is disposed on the third top plate 63, and the center of the third driving member 60 is on the same central axis as the center of the central hole 100. The third driving member 60 is preferably a hydraulic cylinder. The third top plate 63 is provided with multiple guide rod assemblies 64. Each of the multiple guide rod assemblies 64 includes a guide sleeve and a guide rod. The guide sleeve is fixed on the third top plate 63, and the guide rod is disposed in the guide sleeve to form a sliding connection. The third insertion assembly 62 includes a third fixing plate 620 and multiple insertion rods 621. The third fixing plate 620 is connected to the driving end of the third driving member 60 and the multiple insertion rods 621. The end of the rod is connected to and positioned below the third top plate 63. Multiple insertion rods 621 are positioned and fixed on the outer wall of the third fixing plate 620 and positioned above the magnetic insertion port 105. Each insertion rod 621 is provided with a positioning strip 621a that cooperates with the positioning slot 105a. The positioning strip 621a and the positioning slot 105a are used to ensure the stability of the insertion rod 621 when inserting the magnet. The magnet moves towards the magnetic insertion port 105 due to the magnetic attraction. After it moves into place, the third driving member 60 is activated, driving the insertion rod 621 on the insertion assembly to move downward. The insertion rod 621 pushes a single magnet into the magnet positioning slot 230. Then, the insertion rod 621 rises and resets under the reset of the third driving member 60.

[0027] The bottom of the central hole 100 is provided with a circular groove. The material straightening mechanism 7 includes a fourth driving member 70 and a fourth pressing block 71. The fourth driving member 70 is disposed and fixed on the central hole 100, and the center of the fourth driving member 70 and the center of the central hole 100 are on the same central axis. The fourth pressing block 71 is disposed in the circular groove and connected to the driving end of the fourth driving member 70. The fourth pressing block 71 is preferably a circular pressing block. The circular pressing block is provided with multiple circular array positioning columns. The positioning columns are used to position the rotor material during pressing. The fourth driving member 70 is preferably a cylinder. The rotor material is placed on the placement seat. When the magnet is attached to the outer wall of the rotor material, the fourth driving member 70 controls the pressing block to perform pressing, straightening and leveling actions on the magnet material on the rotor, thereby ensuring the uniformity of the magnet material after it is attached to the outer wall of the rotor, saving subsequent material straightening actions, and improving the assembly efficiency of the subsequent motor.

[0028] This utility model's magnet-attaching mechanism incorporates a detachable protective strip within the magnet positioning slot of the bonding block. A gap of no more than 2mm is maintained between the adhesive portion of the protective strip and the end face of the bonding block. This prevents direct contact between the magnet and the rigid bonding block's end face, and also prevents scratches caused by excessive tightness during magnet insertion. The protective strip comprises an insert and a U-shaped fixing portion, positioned via a first and second slot, ensuring its stability and preventing displacement due to the insertion force of the magnet. This further guarantees the integrity of the magnet's appearance during insertion, reduces performance degradation caused by magnet damage, and ensures the magnet's subsequent performance and lifespan, thus guaranteeing the quality of the robot motor. The bottom of the magnet positioning slot features a detachable and adjustable limiting block. This block connects to the threaded hole of the bonding block via a straight groove, allowing adjustment of the installation position along the groove according to the magnet's thickness. This adapts to different specifications of magnets without replacing the entire positioning module. The insertion port of this utility model's magnet-attaching device is equipped with a first protective rubber strip to provide cushioning and prevent scratches. When the magnet material moves towards the discharge port, a distance difference is formed between the end face of the magnet material and the end face of the insertion port near the center hole. This prevents the magnet material from completely adhering to the end face of the insertion port near the center hole, thereby preventing scratches caused by the magnet material adhering to the end face of the insertion port near the center hole during insertion. This ensures the appearance integrity of the magnet material during insertion, reduces performance degradation caused by damage to the magnet material, guarantees the subsequent performance and service life of the magnet material, and ensures the quality of the robot motor.

[0029] This utility model is not limited to the above-described embodiments. Other magnet-attaching mechanisms and devices obtained by using the same or similar structures or devices as the above-described embodiments of this utility model are all within the protection scope of this utility model.

Claims

1. A magnet-attaching mechanism, fixed to a platform or bottom, characterized in that: The magnet-attaching mechanism includes a support, one end of which is fixedly connected to a first driving member. The support also includes a first slide rail module, which has a first slide table slidably connected to it. The first slide table is connected to the driving end of the first driving member. The first slide table has a second driving member and an attaching block. The attaching block has a magnet positioning slot, which has a protective strip for protecting the magnet. The attaching block also has a sliding cavity penetrating the attaching block. The driving end of the second driving member has a top block, which is disposed within the sliding cavity.

2. The magnet-attaching mechanism according to claim 1, characterized in that: The magnetic steel positioning slot is provided on the end face of the bonding block. The top of the magnetic steel positioning slot is provided with an insertion port for inserting the magnetic steel, and the bottom of the magnetic steel positioning slot is provided with a limiting block for limiting and positioning the insertion of the magnetic steel.

3. The magnet-attaching mechanism according to claim 2, characterized in that: The magnetic positioning slot has two opposing first slots at its rear, and the insertion port has a second slot at its rear. The ends of the second slots are connected to the first slots. The protective strip includes two opposing insert parts and a fixing part. The two insert parts are respectively disposed in the first slots, and the fixing part is disposed in the second slot.

4. The magnet-attaching mechanism according to claim 3, characterized in that: The insertion part and the fixing part are both provided with guide parts; the insertion part is provided with a fitting part that fits with the magnet when it is inserted, and there is a gap between the fitting part and the end face of the fitting block.

5. The magnet-attaching mechanism according to claim 4, characterized in that: The distance between the spacing points is no greater than 2mm.

6. The magnet-attaching mechanism according to claim 2, characterized in that: The insertion port is provided with a first guide at both ends of its top.

7. A device for attaching magnets, characterized in that: Includes the magnetic steel attaching mechanism as described in any one of claims 1-6.

8. The magnet-attaching device according to claim 7, characterized in that: The magnet-attaching device includes a bracket, an insertion mechanism, and a material-forming mechanism. The platform is mounted on the bracket and has a central hole. The bottom of the platform has multiple fixed seats arranged in a circular array. The magnet-attaching mechanism is mounted and fixed in the fixed seats, and the attaching block faces the central axis of the central hole. The upper surface of the platform is also provided with multiple material troughs for placing magnetic steel materials. The material troughs are respectively located above the magnetic steel attaching mechanism. The end of the material trough near the central hole is provided with a discharge port, and the other end of the material trough is provided with a feed port. The discharge port is provided with a magnetic insertion port that runs from top to bottom through the platform. The end face of the magnetic insertion port near the central hole is provided with two opposing first protective rubber strips. The end faces of the first protective rubber strips near the central hole are detachably connected. A positioning groove is also provided between the two first protective rubber strips. The first protective rubber strips are provided with a first bonding part facing the feed port. A first gap is provided between the first bonding part and the end near the central hole.

9. The magnet-attaching device according to claim 8, characterized in that: The insertion mechanism includes a third driving member, a third support, and a third insertion assembly. The third support has a third top plate, and the third driving member is disposed on the third top plate, with the center of the third driving member and the center of the central hole on the same central axis. The third top plate has multiple guide rod assemblies. The third insertion assembly includes a third fixing plate and multiple insertion rods. The third fixing plate is connected to the driving end of the third driving member and the multiple guide rod assemblies and is disposed below the third top plate. The multiple insertion rods are disposed and fixed on the outer wall of the third fixing plate and are disposed above the magnetic insertion port. Each insertion rod has a positioning strip that mates with a positioning slot. The bottom of the central hole is provided with a circular groove. The material straightening mechanism includes a fourth driving member and a fourth pressing block. The fourth driving member is disposed and fixed on the central hole, and the center of the fourth driving member and the center of the central hole are on the same central axis. The fourth pressing block is disposed in the circular groove and connected to the driving end of the fourth driving member.

10. The magnet-attaching device according to claim 9, characterized in that: The distance of the first spacing is no greater than 2mm.

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