A method and device for arranging a magnet group after magnetization

Abstract

The invention discloses a method and device for arranging a magnet group after magnetization, belonging to the field of magnet production equipment. By fixing one end of the magnet group and continuously twisting the other end, or continuously twisting the two ends of the magnet group in opposite directions, rectangular magnet pieces in the magnet group are driven to rotate, so that adjacent rectangular magnet pieces rotate until they are close to completely overlapping, until the magnet group as a whole presents a regular twisted spiral shape; the problem that the directions of the magnets in the magnet group are not uniform, there are many messy and protruding edges and corners, and the manual arrangement efficiency is low is solved.

Description

Technical Field

[0001] The invention relates to the field of magnet production equipment, in particular to a method and device for arranging a magnet group after magnetization. Background Art

[0002] Magnets are widely used in 3C electronic products. The magnets used in small household appliances are generally small in size. In the prior art, a whole plate of magnets is placed in a magnetizer for magnetization. After magnetization, the magnets are randomly adsorbed together, such as Fig.12 The figure shows a state diagram of a rectangular magnet sheet after magnetization. In the subsequent processing, it is necessary to manually sort the magnets into a long strip magnet group according to the polarity of the magnets. This process is relatively fast and is a relatively rough sorting process. After sorting, the directions of the magnets in each group are not uniform, that is, the opposite poles of two adjacent rectangular magnet sheets are attracted together, but not completely overlapped. The number of magnets in each group is generally in the range of 100-300, and the magnet group as a whole has many messy and protruding edges and corners ( Fig.13 As shown in the figure); for this reason, it is necessary to manually adjust the opposite poles of two adjacent rectangular magnets to overlap as much as possible. There are many magnets in each group, and it is time-consuming and laborious to manually adjust the direction of each magnet. Summary of the invention

[0003] The purpose of the present invention is to provide a method and device for arranging a magnet group after magnetization, so as to solve the problems that the directions of the magnets in the magnet group are not uniform, there are many messy and protruding edges and corners, and the manual arrangement efficiency is low.

[0004] The technical solution adopted by the present invention is as follows:

[0005] According to the first aspect of the present disclosure, the present invention provides a method for arranging a magnet group after magnetization, wherein the arranged magnet group is composed of a number of rectangular magnet pieces sucked together into a long strip, presenting a twisted shape with many messy and protruding edges and corners; one end of the magnet group is fixed and the other end is continuously twisted, or the two ends of the magnet group are continuously twisted in opposite directions, driving the rectangular magnet pieces in the magnet group to rotate, so that adjacent rectangular magnet pieces rotate until they are close to completely overlapping, until the magnet group as a whole presents a regular twisted spiral shape.

[0006] According to the second aspect of the present disclosure, the present invention provides a device for arranging magnet groups after magnetization, the arranging device comprising two relatively arranged clamps for fixing the two ends of the magnet group, each of the two clamps is configured with a driving device to drive the rotation, and the two clamps rotate in opposite directions.

[0007] In an exemplary embodiment of the present disclosure, the clamp includes a base, a clamping mechanism and a clamping piece; one end of the base is connected to the driving device, and the other end is formed with a clamping groove for placing one end of the magnet group; a clamping piece is arranged above the clamping groove through the clamping mechanism, and the clamping piece is driven downward by the clamping mechanism to clamp the end of the magnet group placed in the clamping groove.

[0008] In an exemplary embodiment of the present disclosure, the clamping mechanism includes an articulated seat, and the articulated seat is rotatably connected to a T-shaped first connecting rod through a first pin shaft on one side close to the clamping groove, and a second pin shaft is arranged on the first connecting rod and above the first pin shaft, and the clamping arm of the first connecting rod extends toward one side of the clamping groove, and a clamping piece is installed at the end; the articulated seat is rotatably connected to the second connecting rod through a third pin shaft on one side close to the driving device, and the second connecting rod extends in the direction of the second pin shaft, and a fourth pin shaft is arranged at its free end; two hinge holes are arranged on the operating rod in the clamping mechanism, which are rotatably connected to the second pin shaft and the fourth pin shaft respectively.

[0009] In an exemplary embodiment of the present disclosure, a vertical mounting hole is formed at the end of the first connecting rod, and a pressing piece is installed in the mounting hole.

[0010] In an exemplary embodiment of the present disclosure, the clamping member includes a threaded rod and a pressure head at its lower end, the threaded rod passes through the mounting hole at the end of the first connecting rod, two adjusting nuts are installed on the threaded rod and above and below the mounting hole, and the adjusting nuts are threadedly matched with the threaded rod.

[0011] In an exemplary embodiment of the present disclosure, a pre-embedded magnet is provided on the base near the clamping groove, and the polarities of the opposing surfaces of the pre-embedded magnets on the two opposing clamps are opposite.

[0012] In an exemplary embodiment of the present disclosure, it also includes a box body, in which multiple groups of clamp assemblies are arranged in parallel, each group of clamp assemblies includes two clamps arranged oppositely; the clamps on the same side of the multiple groups of clamp assemblies are connected to a driving device through a synchronous transmission mechanism.

[0013] In an exemplary embodiment of the present disclosure, a start button, a pause button, a reset button, and a speed control knob are provided on the box body, and the buttons are connected to the two driving devices through a PLC; wherein the start button is used to control the two driving devices to start reverse rotation; the pause button is used to temporarily pause the two driving devices; the reset button is used to control the two driving devices to reset so that the clamp faces upward; and the speed control knob is used to control the rotation speed of the two driving devices.

[0014] The beneficial effects of the present invention are as follows: the present invention provides a method and device for arranging a magnet group after magnetization, by fixing one end of the magnet group and continuously twisting the other end, or continuously twisting the two ends of the magnet group in opposite directions, so as to drive the rectangular magnet pieces in the magnet group to rotate, so that adjacent rectangular magnet pieces rotate until they are close to completely overlapping, until the magnet group as a whole presents a regular twisted spiral shape; the problems of the magnets in the magnet group having inconsistent directions, having many messy and protruding edges and corners, and low manual arrangement efficiency are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a diagram of the magnet group after preliminary manual sorting.

[0016] Figure 2 It is a schematic diagram of translational dislocation.

[0017] Figure 3 It is a schematic diagram of rotational misalignment.

[0018] Figure 4 It is a structural schematic diagram of the sorting device in the first embodiment of the present invention.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamp in the first embodiment of the invention.

[0020] Figure 6 yes Figure 5 Schematic diagram of part of the structure being disassembled.

[0021] Figure 7 It is a three-dimensional structural schematic diagram of the articulated seat.

[0022] Figure 8 It is a schematic diagram of the structure of the sorting device in the second embodiment of the present invention.

[0023] Fig. 9 yes Figure 8 Schematic diagram showing the internal structure with part of the cover removed.

[0024] Fig.10 yes Figure 8 The structure of the fixture in the upper left corner is shown.

[0025] Fig.11 yes Fig. 9 The structural diagram of the synchronous wheels connected to the outside of the five fixtures on the left.

[0026] Fig.12 This is a state diagram of an existing rectangular magnet sheet after magnetization.

[0027] Fig.13 yes Fig.12 The state diagram after preliminary manual editing.

[0028] Fig.14It is a state diagram of the magnet group after the arrangement of the present invention.

[0029] Fig.15 yes Fig.14 The final state diagram after the state is manually sorted again.

[0030] In the figure: base 1, clamping groove 101; clamping mechanism 2, hinged seat 201, first pin 202, first connecting rod 203, second pin 204, third pin 205, second connecting rod 206, fourth pin 207, operating rod 208; clamping member 3, threaded rod 301, pressure head 302, adjusting nut 303, driving device 4, magnet group 5, embedded magnet 6, box body 7, rotating shaft 8, synchronous wheel 9, synchronous belt 10, start button 11, pause button 12, reset button 13, speed control knob 14. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the magnet group 5 that needs to be adjusted in this application, the shape of a single magnet is a rectangular magnet sheet. The specific size of the rectangular magnet sheet in the embodiment is 7mm*6mm*2mm. There are 200 magnets in each group. The magnet group 5 is twisted as a whole, with many messy and protruding edges and corners (such as Figure 1 As shown), the purpose of the present invention is to adjust two adjacent rectangular magnet pieces in the magnet group 5 to be close to overlapping, so as to facilitate subsequent sorting.

[0036] In order to achieve the above-mentioned purpose, the present invention first provides a method for arranging a magnet group after magnetization. The principle of the method is: when two identical rectangular magnet pieces with different magnetic poles are attracted together, the suction force is larger when they are in a completely overlapping and fitting state, and it is difficult to separate them by rotation; when the two rectangular magnet pieces are misaligned, the suction force is smaller than that in a completely overlapping and fitting state; the misalignment forms of the two rectangular magnet pieces mainly include translation misalignment (such as Figure 2 as shown), rotational misalignment (as shown Figure 3 As shown) and translation + rotation misalignment; the misalignment of the rectangular magnet pieces can be made to approach complete overlap by twisting. Once the complete overlap state is reached, it is difficult for the two rectangular magnet pieces to rotate and misalign. On this theoretical basis, the present application continuously twists at least one end of the magnet group 5 to drive the rectangular magnet pieces in the magnet group 5 to rotate, so that the adjacent rectangular magnet pieces rotate to approach complete overlap, until the magnet group 5 as a whole presents a regular twisted spiral shape, such as Fig.14 This regular twisted spiral shape is convenient for subsequent manual work to achieve Fig.15 The effect shown is that the workload of manual adjustment of magnet pieces one by one is reduced.

[0037] The present application continuously twists at least one end of the magnet group 5, and there are two more specific implementation methods. Method 1, one end of the magnet group 5 is fixed, and the other end is continuously twisted clockwise or counterclockwise; Method 2, both ends of the magnet group 5 are continuously twisted in opposite directions. Method 2 is faster than method 1 in arranging magnets, so the present invention uses method 2 to provide a device that can implement the above method, which is described in detail below.

[0038] Example 1

[0039] like Figure 4As shown, a magnet group arrangement device after magnetization includes two clamps arranged opposite to each other, two ends of the magnet group 5 are fixed on the two clamps, and the two clamps are respectively equipped with a driving device 4 to drive the rotation, and the two clamps rotate in opposite directions.

[0040] In a preferred embodiment, the structure of the clamp is as follows: Figure 5 , 6 As shown, Figure 5 , 6 yes Figure 4 The fixture on the left side is used as an example to explain the structure. The fixture on the right side has the same structure. Figure 5 , 6 The figure shows the state of the clamp clamping and fixing the magnet group; as shown in the figure, the clamp includes a base 1, a clamping mechanism 2 and a clamping piece 3; in this embodiment, the base 1 is a rectangular block, the left end face of the base 1 is connected to the driving shaft of the driving device 4-the stepper motor, the stepper motor drives the base 1 to rotate, and a clamping groove 101 is formed on the right end face of the base 1 for placing one end of the magnet group 5, and a clamping piece 3 is arranged above the clamping groove 101 through the clamping mechanism 2, and the clamping piece 3 is driven by the clamping mechanism 2 to move downward and clamp the end of the magnet group 5 placed in the clamping groove 101.

[0041] In a preferred embodiment, the clamping mechanism 2 includes a hinge seat 201 disposed in the center of the upper surface of the base 1. Figure 7 As shown, two hinge connection holes are provided on the hinge seat 201, wherein the hinge connection hole near the clamping groove 101 is rotatably connected to the T-shaped first connecting rod 203 through the first pin shaft 202, and the second pin shaft 204 is arranged on the first connecting rod 203 and above the first pin shaft 202, and the clamping arm of the first connecting rod 203 extends to the side of the clamping groove 101 and forms a vertical mounting hole at the end, and the clamping piece 3 is installed in the mounting hole; in this embodiment, the clamping piece 3 is composed of a threaded rod 301 and a rubber pressure head 302 at its lower end, the threaded rod 301 passes through the mounting hole at the end of the first connecting rod 203, and two adjusting nuts 303 are installed on the threaded rod 301 and above and below the mounting hole, and the adjusting nuts 303 are threadedly matched with the threaded rod 301, and the height of the pressure head 302 is adjusted by the two adjusting nuts 303, that is, Figure 5 In the clamping state shown, if the pressing head 302 does not press the magnet group 5, the threaded rod 301 can be moved downward by adjusting the two adjusting nuts 303 to meet the pressing force adjustment requirements.

[0042] like Figure 5 , 6As shown, the hinge connection hole on the hinge seat 201 close to the driving device 4 is rotatably connected to the second connecting rod 206 through the third pin shaft 205, and the second connecting rod 206 extends forward and upward, that is, extends in the direction of the second pin shaft 204, and the free end of the second connecting rod 206 is provided with a fourth pin shaft 207; the operating rod 208 in the clamping mechanism 2 is provided with two hinge holes, which are rotatably connected to the second pin shaft 204 and the fourth pin shaft 207 respectively, and the handle end of the operating rod 208 extends toward the side of the stepping motor.

[0043] The working principle of the above fixture is as follows: Figure 5 In the state shown, lift the operating rod 208, the clamping member 3 moves up to clear the clamping groove 101, place the two ends of the magnet group 5 in the clamping grooves 101 on both sides, press the operating rod 208 down, and the clamping member 3 moves down to clamp the ends of the magnet group 5. In the clamped state, the second pin 204, the third pin 205, and the fourth pin 207 are collinear to realize the automatic locking function of the clamp. There are many clamping mechanisms that can realize the above functions, such as the quick opening clamp disclosed in the invention patent with announcement number CN105437070A, which is not limited by the present invention.

[0044] Further, if Figure 6 As shown in FIG. 1 , a magnet is also embedded on the base 1 near the clamping groove 101. In this embodiment, a rectangular parallelepiped magnet block is used. The polarities of the opposite surfaces of the embedded magnets 6 on the two opposite clamps are opposite. That is, if Figure 6 The side of the middle magnet block facing the right is the N pole, and the magnet embedded in the fixture on the opposite side faces Figure 6 The surface of the magnet is the S pole; when placing the magnet group 5, it is necessary to place it according to the polarity of the corresponding embedded magnet 6, that is, Figure 6 The surface of the middle magnet block facing the right side is the N pole, and the S pole of the entire magnet group 5 is fixed in the clamping groove 101 on this side; the purpose of setting the embedded magnet 6 is to further enhance the clamping stability of the clamp through magnetic attraction, to ensure that each magnet group 5 is installed firmly, and to ensure that the magnetic direction of all magnet pieces in the magnet group 5 is uniform.

[0045] Example 2

[0046] Based on Example 1, the present application further provides a device capable of adjusting multiple magnet groups 5 at the same time to further improve work efficiency. Figure 8 , 9 As shown, it includes a box body 7, in which a plurality of sets of fixture assemblies are arranged in parallel, and each set of fixture assemblies includes two fixtures arranged opposite to each other; Figure 8 , 9 As shown in , in this embodiment, 5 sets of clamp combinations are provided, 5 clamps are provided on the left side, and 5 corresponding clamps are provided on the right side; Fig.10As shown, the base 1 of each fixture is connected to a rotating shaft 8, and the rotating shaft 8 passes through the bearing on the side wall of the box body 7 and is connected to the outer synchronous wheel 9, as shown in FIG. Fig.11 As shown, two adjacent synchronous wheels 9 outside the five clamps on the left are connected by a synchronous belt 10, a stepper motor is set at the front end, the synchronous wheel 9 is installed on the driving shaft of the stepper motor, and is connected to the synchronous wheel 9 on the nearest clamp through the synchronous belt 10, and the five clamps are driven to rotate by one motor; the structure on the right side of the box body 7 is symmetrical with the left side.

[0047] In addition, if Figure 8 , 9 As shown, a control panel is arranged in front of the box body 7, and a start button 11, a pause button 12, a reset button 13, and a speed knob 14 are arranged on the control panel from left to right in sequence, and the buttons are connected to two stepper motors that drive the fixture to rotate through a PLC; wherein, the start button 11 is used to control the two motors to start reverse rotation; the pause button 12 is used to temporarily pause the two motors to observe the adjustment effect; the reset button 13 is used to control the two motors to reset so that the fixture faces upwards, which is convenient for taking and placing the magnet group 5; the speed knob 14 is used to control the rotation speed of the two motors.

[0048] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A device for arranging magnet groups after magnetization, characterized in that: The invention comprises two clamps arranged opposite to each other and used for fixing two ends of a magnet group. The two clamps are each equipped with a driving device (4) to drive the two clamps to rotate, and the two clamps rotate in opposite directions. The clamps comprise a base (1), a clamping mechanism (2) and a clamping piece (3). One end of the base (1) is connected to the driving device (4), and the other end is formed with a clamping groove (101) for placing one end of the magnet group. A clamping piece (3) is arranged above the clamping groove (101) through the clamping mechanism (2), and the clamping piece (3) is driven by the clamping mechanism (2) to move downward to clamp the clamping groove (101). The end of the magnet group is placed inside; the clamping mechanism (2) includes an articulated seat (201); the articulated seat (201) is rotatably connected to a T-shaped first connecting rod (203) through a first pin shaft (202) on a side close to the clamping groove (101); a second pin shaft (204) is arranged on the first connecting rod (203) and above the first pin shaft (202); the clamping arm of the first connecting rod (203) extends toward one side of the clamping groove (101); a pressing member (3) is installed at the end; the articulated seat (201) is rotatably connected to the driving device (4) on a side close to the driving device (4) through a third pin shaft (205); The second connecting rod (206) is connected to the second connecting rod (206), the second connecting rod (206) extends in the direction of the second pin shaft (204), and a fourth pin shaft (207) is provided at the free end thereof; the operating rod (208) in the clamping mechanism (2) is provided with two hinge holes, which are rotatably connected to the second pin shaft (204) and the fourth pin shaft (207) respectively; the first connecting rod (203) forms a vertical mounting hole at the end thereof, and a pressing member (3) is installed in the mounting hole; the pressing member (3) comprises a threaded rod (301) and a pressing head (302) at the lower end thereof, and the threaded rod (301) passes through the first connecting rod (2 03) an installation hole at the end, two adjusting nuts (303) are installed on the threaded rod (301) and above and below the installation hole, and the adjusting nuts (303) are threadedly matched with the threaded rod (301); the magnet group to be arranged is formed into a long strip by a plurality of rectangular magnet pieces, presenting a twisted shape with many messy and protruding edges and corners; one end of the magnet group is fixed, and the other end is continuously twisted, or the two ends of the magnet group are continuously twisted in opposite directions, driving the rectangular magnet pieces in the magnet group to rotate, so that the adjacent rectangular magnet pieces rotate until they are close to completely overlapping, until the magnet group as a whole presents a regular twisted spiral shape.

2. The magnet group arrangement device after magnetization according to claim 1 is characterized in that: An embedded magnet (6) is provided on the base (1) near the clamping groove (101), and the polarities of the opposing surfaces of the embedded magnets (6) on the two opposing clamps are opposite.

3. The magnet group arrangement device after magnetization according to claim 2 is characterized in that: It also comprises a box body (7), wherein a plurality of clamp assemblies are arranged in parallel in the box body (7), each clamp assembly comprising two clamps arranged opposite to each other; the clamps on the same side of the plurality of clamp assemblies are connected to a driving device (4) via a synchronous transmission mechanism.

4. The magnet group arrangement device after magnetization according to claim 3 is characterized in that: The box body (7) is provided with a start button (11), a pause button (12), a reset button (13), and a speed knob (14), and the buttons are connected to the two drive devices (4) via a PLC; wherein the start button (11) is used to control the two drive devices (4) to start reverse rotation; the pause button (12) is used to temporarily pause the two drive devices (4); the reset button (13) is used to control the two drive devices (4) to reset so that the clamp faces upward; and the speed knob (14) is used to control the rotation speed of the two drive devices (4).

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