Magnetic attraction device

Abstract

The utility model belongs to the technical field of magnetic attraction devices, and discloses a magnetic attraction device which comprises a rack, a magnetic attraction assembly and an isolation hood. The magnetic attraction assembly is connected to the rack, the isolation hood is movably connected with the rack, a cavity is formed in the isolation hood, the magnetic attraction assembly is arranged in the cavity, the end, away from the rack, of the isolation hood is a material taking end, and the magnetic attraction assembly can provide magnetic attraction force for the material taking end in the cavity. The isolation cover moves in the direction close to or away from the rack so that the material taking end can be close to or away from the magnetic attraction assembly, and then the magnetic attraction force of the material taking end is changed. Therefore, the magnetic attraction device can attract or release the materials by changing the distance between the magnetic attraction assembly and the isolation cover, the magnetic core can be taken and placed without using an electromagnetic coil, and the problem that the magnetic field intensity of the center of the electromagnetic coil is weak is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic attraction devices, in particular to a magnetic attraction device. Background Art

[0002] The magnetic core is a material widely used in electronic components. It is mainly composed of a mixture of various iron oxides, so magnetic parts can be used to absorb the magnetic core.

[0003] In existing technology, magnetic cores are often magnetically attracted using an electromagnet. This fixture attracts the core when the electromagnet is powered on and releases it when the power is off. Electromagnets are composed of multiple coils. When the material is a small cylindrical core, the magnetic field strength near the coil axis is weak. Therefore, the center of the coil is prone to material dropout during the magnetic attraction process, resulting in material damage and losses. Utility Model Content

[0004] The purpose of the utility model is to provide a magnetic suction device for sucking and releasing materials.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A magnetic device, comprising:

[0007] frame;

[0008] A magnetic attraction component connected to the frame;

[0009] An isolation cover is movably connected to the frame, a cavity is provided in the isolation cover, the magnetic component is provided in the cavity, the end of the isolation cover away from the frame is a feeding end, the magnetic component can provide magnetic attraction force for the feeding end in the cavity, and the isolation cover can change the magnitude of the magnetic attraction force of the feeding end by moving in a direction close to or away from the frame.

[0010] Preferably, the frame is provided with an adjustment hole, which extends along the moving direction of the isolation cover. The isolation cover is provided with a first mounting hole, and the first fixing member passes through the first mounting hole and can be connected to different positions of the adjustment hole.

[0011] Preferably, the magnetic attraction component is movably arranged in the cavity, and the movement of the magnetic attraction in the cavity can change the magnitude of the magnetic attraction force of the material taking end.

[0012] Preferably, a driving mechanism is provided on the frame, and an output end of the driving mechanism is connected to the magnetic attraction component for driving the magnetic attraction component to move in a direction close to or away from the material taking end.

[0013] Preferably, the magnetic attraction component includes a mounting base and a permanent magnet, the mounting base is connected to the output end of the driving mechanism, a first mounting groove is provided on a side of the mounting base away from the driving mechanism, and the permanent magnet is provided in the first mounting groove.

[0014] Preferably, a plurality of the permanent magnets are provided, and a plurality of first mounting grooves are provided at intervals along the length direction of the mounting seat, and the plurality of permanent magnets are provided in the plurality of first mounting grooves in a one-to-one correspondence.

[0015] Preferably, the permanent magnet is a sheet-like magnetic part, which is provided with a first avoidance hole, and a second mounting hole is provided at the bottom of the first mounting slot. The second fixing part passes through the first avoidance hole and is connected to the second mounting hole to fix the sheet-like magnetic part to the first mounting slot.

[0016] Preferably, the magnetic attraction assembly further includes an anti-shatter cover, which is provided outside the mounting seat and abuts against a surface of the permanent magnet away from the mounting seat.

[0017] Preferably, an elastic member is provided on the side of the magnetic component close to the isolation cover, and the magnetic component moves toward the material picking end. The elastic member can abut against the isolation cover and be compressed, so that the magnetic component has a tendency to move away from the isolation cover.

[0018] Preferably, the driving mechanisms are provided in plurality, and a plurality of second mounting holes are provided at intervals along the length direction of the frame. The plurality of driving mechanisms are correspondingly passed through the plurality of second mounting holes and connected to the magnetic attraction assembly.

[0019] Beneficial effects:

[0020] This embodiment provides a magnetic device, which includes a frame, a magnetic assembly, and an isolation cover. The magnetic assembly is connected to the frame, and the isolation cover is movably connected to the frame. The magnetic assembly is disposed in the cavity of the isolation cover and provides magnetic attraction for the material picking end. The isolation cover can move in the direction of approaching or moving away from the frame to move the material picking end closer to or away from the magnetic assembly, thereby increasing or decreasing the magnetic attraction force on the material picking end to attract and release the magnetic core. Therefore, the magnetic device does not need to use an electromagnetic coil to complete the picking and placing of the magnetic core, and thus does not cause the problem of weak magnetic field strength in the center of the electromagnetic coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an exploded view of the magnetic attraction device provided by the present invention;

[0022] Figure 2 This is an overall schematic diagram of the magnetic attraction device provided by the present invention;

[0023] Figure 3 It is a schematic diagram of the frame of the magnetic attraction device provided by the present invention;

[0024] Figure 4 It is a schematic diagram of the isolation cover of the magnetic attraction device provided by the present invention;

[0025] Figure 5 It is a schematic diagram of the driving mechanism and magnetic attraction assembly of the magnetic attraction device provided by the present invention;

[0026] Figure 6 This is a schematic diagram of the mounting base and permanent magnet of the magnetic attraction device provided by the present invention;

[0027] Figure 7 It is a schematic diagram of the mounting base of the magnetic attraction device provided by the present invention.

[0028] In the picture:

[0029] 1- vent; 2- device fixing bolt; 3- frame; 4- mounting base; 41- first mounting slot; 5- countersunk screw; 6- magnetic part; 7- anti-shatter cover; 8- isolation cover; 81- limit slot; 9- driving mechanism; 10- adjustment hole; 11- magnetic core. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0031] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0034] like Figure 1-Figure 7 As shown, this embodiment provides a magnetic device, which includes a frame 3, a magnetic assembly and an isolation cover 8. The magnetic assembly is connected to the frame 3, and the isolation cover 8 is movably connected to the frame 3. A cavity is provided in the isolation cover 8, and the magnetic assembly is provided in the cavity. The end of the isolation cover 8 away from the frame 3 is the feeding end, and the magnetic assembly can provide magnetic attraction for the feeding end in the cavity; the isolation cover 8 moves in the direction close to the frame 3 or away from the frame 3, which can change the magnitude of the magnetic attraction at the feeding end. When the above-mentioned magnetic device is used to absorb and release materials, the magnetic assembly is closer to the feeding end, which can generate a stronger magnetic attraction at the feeding end to absorb materials; the magnetic assembly is farther away from the feeding end, which can reduce the magnetic attraction at the feeding end to release materials.

[0035] Specifically, in this embodiment, the frame 3 is provided with an adjustment hole 10 extending along the direction of movement of the isolation cover 8. The isolation cover 8 is provided with a first mounting hole. The first fixing member passes through the first mounting hole and can be connected to different positions of the adjustment hole 10. That is, the adjustment hole 10 is an elongated hole, and the first mounting hole is a circular hole. The circular hole can be fixed to the elongated hole at different positions along the length. Furthermore, the first fixing member is a screw that passes through the first mounting hole and the adjustment hole 10, and is then locked by a nut to complete the fixing between the frame 3 and the isolation cover 8.

[0036] Furthermore, in this embodiment, the magnetic assembly is movably disposed within the cavity, and movement of the magnet within the cavity can change the magnetic attraction force at the reeling end. Material absorption and release can be achieved by the movement of the magnetic assembly within the cavity: when the magnetic assembly moves closer to the reeling end, the magnetic attraction force at the reeling end increases, thereby attracting material; when the magnetic assembly moves away from the reeling end, the magnetic attraction force at the reeling end decreases, thereby releasing the material. Simultaneously, movement of the isolation cover 8 in a direction toward or away from the frame 3 can change the minimum distance between the magnetic assembly and the reeling end. When the isolation cover 8 is located near one end of the frame 3, the magnetic assembly can abut against the reeling end, thereby achieving a greater maximum magnetic attraction force at the reeling end. When the isolation cover 8 is located near one end of the frame 3, the magnetic assembly maintains a certain gap with the reeling end, thereby achieving a smaller maximum magnetic attraction force at the reeling end. In other words, the movement of the isolation cover 8 is not used to control the absorption or release of material, but rather to control the maximum magnetic attraction force at the reeling end. Furthermore, the material sucked by the magnetic suction device is the magnetic core 11. Magnetic cores 11 of different specifications have different ranges of usable magnetic suction force. If the maximum magnetic suction force applied to the magnetic core 11 is greater than this range, the magnetic core 11 may easily lose powder and be damaged. Therefore, the movable connection between the isolation cover 8 and the frame 3 can adjust the maximum magnetic suction force of the material taking end to be suitable for magnetic core 11 products of different specifications.

[0037] Specifically, in this embodiment, a driving mechanism 9 is provided on the frame 3, and the output end of the driving mechanism 9 is connected to the magnetic attraction component, which is used to drive the magnetic attraction component to move in a direction close to or away from the feeding end. When the driving mechanism 9 drives the magnetic attraction component close to the feeding end, the magnetic attraction force on the feeding end is enhanced to attract the magnetic core 11. When the driving mechanism 9 drives the magnetic attraction component away from the feeding end, the magnetic attraction force on the feeding end is weakened to release the magnetic core 11. Furthermore, the driving distance of the driving mechanism 9 is fixed. Exemplarily, the driving mechanism 9 can be a cylinder, and the cylinder is provided with an air vent 1 to adjust the driving action of the cylinder. When the isolation cover 8 is located at the end closest to the frame 3, the distance between the feeding end and the frame 3 is the smallest, and the driving mechanism 9 can just make the magnetic attraction component abut against the feeding end; when the isolation cover 8 is located at the end farthest from the frame 3, the distance between the feeding end and the frame 3 is the largest. It can be understood that the above situation is the position of the extreme distance. The distance between the isolation cover 8 and the frame 3 can be adjusted according to the specific specifications of the magnetic core 11, and then the shortest distance between the magnetic attraction component and the material retrieving end can be adjusted to change the maximum magnetic attraction force of the material retrieving end.

[0038] Specifically, in this embodiment, the magnetic attraction assembly includes a mounting base 4 and a permanent magnet. The mounting base 4 is connected to the output end of the drive mechanism 9. A first mounting groove 41 is provided on the side of the mounting base 4 away from the drive mechanism 9, and the permanent magnet is disposed in the first mounting groove 41. The arrangement of the mounting base 4 enables the permanent magnet to be driven by the output end of the drive mechanism 9, and the placement of the permanent magnet in the first mounting groove 41 on the side away from the drive mechanism 9 brings the permanent magnet closer to the material retrieving end, thereby providing sufficient magnetic attraction for the material retrieving end.

[0039] Specifically, in this embodiment, multiple permanent magnets are provided, and the mounting base 4 is provided with multiple first mounting slots 41 spaced apart along its length. The multiple permanent magnets are disposed in a one-to-one correspondence within the multiple first mounting slots 41. That is, the multiple permanent magnets are installed in the mounting base 4 along its length. This allows the magnetic attraction assembly to provide a rectangular suction surface for the retrieving end, allowing the retrieving end to absorb the magnetic cores 11 in a row at a time, thereby improving the efficiency of transferring the magnetic cores 11.

[0040] Specifically, in this embodiment, the permanent magnet is a sheet-like magnetic part 6, and the sheet-like magnetic part 6 is provided with a through hole. The bottom of the first mounting groove 41 is provided with a second mounting hole. The second fixing part passes through the through hole and is connected to the second mounting hole to fix the sheet-like magnetic part 6 to the first mounting groove 41. The permanent magnet is a sheet-like magnetic part 6, which can make the magnetic attraction generated by the outer surface of the magnetic core 11 absorbed by the material taking end uniform, thereby avoiding phenomena such as the electromagnetic coil dropping in the middle due to uneven magnetic attraction. Furthermore, each sheet-like magnetic part 6 is provided with two through holes, the second mounting hole is a threaded hole, and the second fixing part is a screw. The screw passes through the through hole and is threadedly connected to the threaded hole to complete the installation and fixation of the sheet-like magnetic part 6.

[0041] Specifically, in this embodiment, the magnetic attraction assembly further includes a shatterproof cover 7, which is positioned outside the mounting base 4 and abuts against the surface of the permanent magnet facing away from the mounting base 4. The shatterproof cover 7 is secured to the mounting base 4 at both ends along its length using countersunk screws 5. The abutment of the shatterproof cover 7 against the surface of the permanent magnet effectively protects the permanent magnet while also preventing the shatterproof cover 7 from affecting the distance between the permanent magnet and the material removal end, thereby reducing the maximum suction force generated by the material removal end.

[0042] Specifically, in this embodiment, an elastic member is provided on the side of the magnetic component close to the isolation cover 8. When the magnetic component moves in the direction close to the feeding end, the elastic member can abut against the isolation cover 8 and be compressed, so that the magnetic component has a tendency to move in the direction away from the isolation cover 8. When the magnetic component is close to the feeding end, the magnetic attraction force generated by the magnetic component attracts the magnetic core 11. Conversely, the magnetic core 11 also generates a magnetic attraction force on the magnetic component. Therefore, when the magnetic component is away from the feeding end, a stronger driving force is required than when it is close to the feeding end. Providing an elastic member on the side of the magnetic component close to the isolation cover 8 can enable the elastic restoring force of the elastic member to help the magnetic component reset when the magnetic component is away from the feeding end, thereby avoiding the driving force of the driving mechanism 9 being insufficient to pull the magnetic component back. Furthermore, an elastic member mounting hole for installing the elastic member is provided between the multiple first mounting grooves 41, and an extension hole for the elastic member to extend is provided on the anti-shatter cover 7 corresponding to the elastic member mounting hole.

[0043] Specifically, in this embodiment, a plurality of drive mechanisms 9 are provided, with a plurality of second mounting holes spaced apart along the length of the frame 3. The plurality of drive mechanisms 9 are correspondingly inserted into the plurality of second mounting holes and connected to the magnetic assembly. The drive mechanisms 9 are pneumatic cylinders, i.e., the plurality of cylinders are respectively connected to the magnetic assembly along the length thereof. The plurality of cylinders act simultaneously to move the magnetic assembly. At the same time, the plurality of cylinders ensures that the magnetic assembly of a certain length moves up and down uniformly, preventing the magnetic assembly from shifting, which would result in uneven magnetic attraction at the material retrieving end and affect the material retrieving effect.

[0044] Specifically, in this embodiment, a limiting slot 81 is provided within the isolation cover 8. The magnetic assembly is positioned within the limiting slot 81 and moves along the depth direction of the limiting slot 81. The bottom of the limiting slot 81 serves as the material removal end. The cross-sectional area of the limiting slot 81 is slightly larger than that of the magnetic assembly, allowing the magnetic assembly to precisely move along the depth direction of the limiting slot 81. The sidewalls of the limiting slot 81 restrict the magnetic assembly from swinging in other directions, ensuring that the magnetic assembly effectively regulates the magnetic attraction force at the material removal end.

[0045] Furthermore, the upper surface of the frame 3 is provided with device fixing bolts 2 for fixing the magnetic device as a whole to a larger device.

[0046] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A magnetic device, characterized in that: include: Rack (3); A magnetic attraction component, the magnetic attraction component being connected to the frame (3); An isolation cover (8) is movably connected to the frame (3), a cavity is provided in the isolation cover (8), the magnetic attraction component is provided in the cavity, the end of the isolation cover (8) away from the frame (3) is a material taking end, the magnetic attraction component can provide magnetic attraction force for the material taking end in the cavity, and the isolation cover (8) moves in a direction close to or away from the frame (3), which can change the magnitude of the magnetic attraction force of the material taking end.

2. The magnetic attraction device according to claim 1, characterized in that: The frame (3) is provided with an adjustment hole (10), the adjustment hole (10) extending along the moving direction of the isolation cover (8), the isolation cover (8) is provided with a first mounting hole, and a first fixing member passes through the first mounting hole and can be connected to different positions of the adjustment hole (10).

3. The magnetic attraction device according to claim 1, characterized in that: The magnetic attraction component is movably arranged in the cavity, and the movement of the magnetic attraction in the cavity can change the magnitude of the magnetic attraction force of the material taking end.

4. The magnetic device according to claim 3, characterized in that: A driving mechanism (9) is provided on the frame (3), and an output end of the driving mechanism (9) is connected to the magnetic attraction component for driving the magnetic attraction component to move in a direction close to or away from the material taking end.

5. The magnetic attraction device according to claim 4, characterized in that: The magnetic attraction component comprises a mounting seat (4) and a permanent magnet (6); the mounting seat (4) is connected to the output end of the driving mechanism (9); a first mounting groove (41) is provided on a side of the mounting seat (4) away from the driving mechanism (9); and the permanent magnet (6) is provided in the first mounting groove (41).

6. The magnetic attraction device according to claim 5, characterized in that: A plurality of the permanent magnets (6) are provided, and the mounting seat (4) is provided with a plurality of first mounting grooves (41) spaced apart along the length direction, and the plurality of permanent magnets (6) are arranged in a one-to-one correspondence in the plurality of first mounting grooves (41).

7. The magnetic attraction device according to claim 6, characterized in that: The permanent magnet (6) is a sheet-like magnetic part, the sheet-like magnetic part is provided with a first avoidance hole, the bottom of the first mounting groove (41) is provided with a second mounting hole, and the second fixing part passes through the first avoidance hole and is connected to the second mounting hole to fix the sheet-like magnetic part to the first mounting groove (41).

8. The magnetic attraction device according to claim 5, characterized in that: The magnetic attraction component further comprises an anti-shatter cover (7), which is arranged outside the mounting seat (4), and the anti-shatter cover (7) abuts against a surface of the permanent magnet (6) away from the mounting seat (4).

9. The magnetic attraction device according to claim 4, characterized in that: An elastic member is provided on one side of the magnetic component close to the isolation cover (8). When the magnetic component moves toward the material-collecting end, the elastic member can abut against the isolation cover (8) and be compressed, so that the magnetic component has a tendency to move in a direction away from the isolation cover (8).

10. The magnetic attraction device according to any one of claims 4 to 9, characterized in that: The driving mechanisms (9) are provided in plurality, and a plurality of second mounting holes are spaced apart along the length direction of the frame (3). The plurality of driving mechanisms (9) are correspondingly inserted into the plurality of second mounting holes and connected to the magnetic attraction assembly.

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