Rubber magnet magnetizing device

Abstract

The utility model provides a rubber magnet magnetizing device, which comprises a base, a magnetizing device and a magnetizing device, the magnetic sheet assembly is arranged in the mounting groove of the base; the limiting assembly is arranged on the base, and the limiting assembly is attached to the magnetic sheet assembly, so that the magnetic sheet assembly is fixed in the mounting groove of the base; the limiting roller assembly is arranged on the base, the limiting roller assembly is located above the magnetic sheet assembly, and the rubber magnet passes through the space between the magnetic sheet assembly and the limiting assembly. Through the arrangement of the magnetic sheet assembly, the number of the permanent magnet sheets is increased and the thickness of the permanent magnet sheets is reduced within a fixed length, so that the magnetizing effect is improved, through the arrangement of the limiting assembly and the mounting groove, the number of the permanent magnet sheets in the magnetic sheet assembly can be conveniently adjusted, and when the length of the magnetic sheet assembly is fixed, the thickness of the permanent magnet sheets is increased to reduce the number; therefore, different numbers of permanent magnet sheets can be arranged under the fixed length, and the magnetizing effect can be adjusted.

Description

Technical Field

[0001] This application relates to a magnetizing device, and more particularly to a rubber magnetizing device. Background Technology

[0002] Rubber magnets are composed of permanent magnet ferrite powder or neodymium iron boron powder, rubber (or resin), and other organic materials and additives. They are manufactured through extrusion and calendering, with continuous, long strip-shaped rubber magnets being the most widely used. These rubber magnet sheets can be shaped to the required size and can also be coated with PVC, adhesive backing, and UV oil according to customer requirements. Due to their simple production process and low price, they have found wide application in refrigerator door catches, advertising magnets, toys, educational instruments, and everyday household items.

[0003] Traditional rubber magnets are magnetized using coils, specifically a base and a magnetizing coil. The magnetizing coil consists of an iron core and copper wire fixed to the base. Multiple radially extending winding slots are provided on the upper surface of the iron core, evenly dividing the upper surface. When the magnetizing coil is energized, it generates a magnetic field, thereby magnetizing the rubber sheet. However, coil magnetization has drawbacks, including complex structure, the need for cooling water when the magnetizing coil operates at high current for extended periods, high power consumption, and difficulty in adjusting the magnetization intensity. Utility Model Content

[0004] This application provides a rubber magnetic charging device to solve the problems existing in related technologies. The technical solution is as follows:

[0005] This application provides a rubber magnetic charging device, comprising:

[0006] The base has a mounting slot.

[0007] Magnetic sheet assembly, the magnetic sheet assembly is set in the mounting slot of the base;

[0008] A limiting component is provided on the base and fits against the magnetic sheet assembly to fix the magnetic sheet assembly in the mounting groove of the base.

[0009] The limiting roller assembly is mounted on the base and is located above the magnetic sheet assembly. The rubber magnet passes between the magnetic sheet assembly and the limiting roller assembly.

[0010] In one implementation,

[0011] The size of the opening of the mounting slot is smaller than the size of the bottom of the mounting slot.

[0012] In one implementation,

[0013] The magnetic sheet assembly includes:

[0014] Several permanent magnet sheets are arranged in the mounting groove, with the outermost permanent magnet sheet in contact with the limiting component.

[0015] In one implementation,

[0016] The thickness of the permanent magnet sheet is 0.5-3mm, the rounded corner R≤0.1mm, and the thickness direction accuracy is controlled within ±0.01mm.

[0017] In one implementation,

[0018] The shape of the permanent magnet sheet is adapted to the mounting groove.

[0019] In one implementation,

[0020] The base also has a mounting slot. The mounting slot is set on the base, and several permanent magnet sheets are installed in the mounting slot through the mounting slot. The width of the uppermost part of the mounting slot is 1 / 3 to 1 / 6 of the maximum width of the permanent magnet sheet.

[0021] In one implementation,

[0022] The limit components include:

[0023] A positioning spring is mounted on the base and located within a mounting slot.

[0024] The limiting plate is located on the end of the positioning spring away from the base. When several permanent magnet sheets are placed in the mounting groove, the limiting plate is in contact with the outermost permanent magnet sheet.

[0025] In one implementation,

[0026] The limit roller assembly includes:

[0027] The first fixing block is disposed on one end of the base near the permanent magnet sheet;

[0028] The second fixing block is located on the end of the base near the positioning spring, and the second fixing block has multiple interconnected slots.

[0029] Two rubber magnetic limit rollers, one end of each roller is set on the first fixed block, and the other end is set in the slot.

[0030] In one implementation,

[0031] The limit roller assembly also includes:

[0032] A rotating block is set on a first fixed block. The ends of two rubber magnetic limit rollers away from the slot are both set on the rotating block. The first fixed block has a notch that matches the two rubber magnetic limit rollers.

[0033] In one implementation,

[0034] The rubber magnetic limit roller includes:

[0035] The central shaft has one end mounted on the rotating block and the other end mounted in the slot.

[0036] The rubber roller surface is set on the central shaft.

[0037] The advantages or beneficial effects of the above technical solutions include at least the following:

[0038] By setting up the magnetic sheet assembly, the number of permanent magnet sheets can be increased and their thickness reduced within a fixed length, thereby improving the magnetization effect. The setting of the limiting component and the mounting groove facilitates the adjustment of the number of permanent magnet sheets in the magnetic sheet assembly. When the length of the magnet assembly is fixed, the thickness of the permanent magnet sheets can be increased to reduce the number, thereby realizing the setting of different numbers of permanent magnet sheets within a fixed length, and thus adjusting the magnetization effect.

[0039] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0040] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0041] Figure 1 This is a schematic diagram of the structure during the magnetization process of this utility model;

[0042] Figure 2 This is a schematic diagram of the structure of this utility model before magnetization;

[0043] Figure 3 for Figure 2 A schematic diagram of the exploded structure;

[0044] Figure 4 This is a schematic diagram of the structure of a permanent magnet thin sheet;

[0045] Figure 5 This is a schematic diagram of the magnetic sheet assembly.

[0046] In the diagram: 100, magnetization device;

[0047] 110. Base; 111. Mounting slot; 112. Narrow mounting slot;

[0048] 120. Magnetic sheet assembly; 121. Permanent magnet sheet;

[0049] 130. Limiting component; 131. Positioning spring; 132. Limiting piece;

[0050] 140. Limiting roller assembly; 141. First fixing block; 142. Second fixing block; 143. Slot; 144. Rubber magnetic limiting roller; 1441. Central shaft; 1442. Rubber roller surface; 145. Rotating block. Detailed Implementation

[0051] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0052] Figures 1-5 This diagram shows a structural diagram of a rubber magnetic magnetizing device 100 according to an embodiment of this application.

[0053] like Figures 1-5 As shown, the magnetizing device 100 may include:

[0054] Base 110, with mounting groove 111 on base 110;

[0055] The magnetic sheet assembly 120 is disposed in the mounting slot 111 of the base 110;

[0056] A limiting component 130 is disposed on the base 110 and is in contact with the magnetic sheet assembly 120 so that the magnetic sheet assembly 120 is fixed in the mounting groove 111 of the base 110.

[0057] The limiting roller assembly 140 is disposed on the base 110 and is located above the magnetic sheet assembly 120. The rubber magnet passes between the magnetic sheet assembly 120 and the limiting assembly 130.

[0058] In this embodiment, the rubber magnet is magnetized between the limiting roller assembly 140 and the magnetic sheet assembly 120. The magnetization effect of the rubber magnet can be adjusted by setting the magnetic sheet assembly 120. Within a fixed length, the more permanent magnet sheets 121 in the magnetic sheet assembly 120, the better the magnetization effect. The limiting assembly 130 is set to press the magnetic sheets in the magnetic sheet assembly 120 tightly. The limiting assembly 130 cooperates with the mounting groove 111 to limit the magnetic sheet assembly 120, which facilitates the installation of the magnetic sheet assembly 120.

[0059] In the initial state, according to the required magnetization intensity of the rubber magnet, the magnetic sheet assembly 120 is filled into the mounting groove 111. After filling, the limiting assembly 130 is made to fit with the outermost magnetic sheet assembly 120, and the rubber magnet is passed between the limiting roller assembly 140 and the magnetic sheet assembly 120. The magnetic sheet assembly 120 cooperates with the limiting roller assembly 140 to magnetize the rubber magnet.

[0060] By setting the magnetic sheet assembly 120, the magnetization effect can be changed by increasing or decreasing the number of permanent magnet sheets 121 within the magnetic sheet assembly 120 within a fixed length. The setting of the limiting component 130 and the mounting groove 111 facilitates the adjustment of the number of permanent magnet sheets 121 within the magnetic sheet assembly 120. When the length of the magnet assembly is constant, the thickness of the permanent magnet sheets 121 can be increased to reduce the number, thereby realizing the setting of different numbers of permanent magnet sheets 121 within a fixed length, and thus adjusting the magnetization effect.

[0061] like Figures 2-3 As shown, in one embodiment,

[0062] The size of the opening of the mounting slot 111 is smaller than the size of the bottom of the mounting slot 111.

[0063] In this embodiment, the cross-section of the mounting groove 111 is an isosceles trapezoid or dovetail shape, and the shape of the magnetic sheet assembly 120 is adapted to the shape of the mounting groove 111 to prevent the magnetic sheet from coming out from the top of the mounting groove 111 and to facilitate the limiting of the magnetic sheet.

[0064] Furthermore, the width of the opening of the mounting groove 111 is 3 / 4 to 5 / 6 of the width of the bottom of the mounting groove 111, and the shape of the magnetic sheet assembly 120 is adapted to the mounting groove 111.

[0065] like Figures 2-4 As shown, in one embodiment,

[0066] The magnetic sheet assembly 120 includes:

[0067] A number of permanent magnet thin sheets 121 are disposed in the mounting groove 111, with the outermost permanent magnet thin sheet 121 being attached to the limiting component 130.

[0068] In this embodiment, the permanent magnet sheet 121 is made of high-performance permanent magnet material and has a dovetail shape. The magnetization direction is the thickness direction (i.e., one side of the permanent magnet sheet 121 is the N pole and the other side is the S pole; when multiple permanent magnet sheets 121 are bonded together, the N poles and S poles of adjacent permanent magnet sheets 121 are bonded together). Please refer to [reference needed]. Figures 4-5It has high-precision ultra-thin dimensions, with a thickness controlled at 0.5~3mm, a rounded corner R≤0.1mm, and a thickness direction accuracy controlled at ±0.01mm to ensure a precise small magnetic pole spacing. According to the width of the rubber magnet, multiple permanent magnet thin sheets 121 can be flexibly selected and stacked and installed in the mounting groove 111 of the base 110.

[0069] Furthermore, the more permanent magnet sheets 121 there are for the same length, the better the magnetization effect on the rubber magnet. The number of permanent magnet sheets 121 can be increased or decreased for the same length by changing the thickness of the permanent magnet sheets 121. The smaller the thickness of the permanent magnet sheets 121, the better the magnetization effect.

[0070] It should be noted that the thickness of the permanent magnet sheet 121 is not directly related to the magnetization effect.

[0071] like Figures 2-4 As shown, in one embodiment,

[0072] The shape of the permanent magnet sheet 121 is adapted to the mounting groove 111.

[0073] In this embodiment, the shape of the permanent magnet sheet 121 is adapted to the shape of the mounting groove 111 to prevent the magnetic sheet from coming out from above the mounting groove 111 and to facilitate the positioning of the magnetic sheet.

[0074] like Figures 2-3 As shown, in one embodiment,

[0075] The base 110 also has a mounting narrow slot 112. The mounting narrow slot 112 is set on the base 110. Several permanent magnet sheets 121 are installed in the mounting slot 111 through the mounting narrow slot 112. The width of the uppermost part of the mounting narrow slot 112 is 1 / 3 to 1 / 6 of the maximum width of the permanent magnet sheet 121.

[0076] In this embodiment, when the permanent magnet sheet 121 is installed, the permanent magnet sheet 121 is inserted into the installation groove 111 through the installation narrow groove 112 and pushed towards the end away from the limiting component 130. When a sufficient length is reached, the limiting component 130 fits against the outermost permanent magnet sheet 121, which facilitates the installation of the permanent magnet sheet 121.

[0077] like Figures 1-3 As shown, in one embodiment,

[0078] Limiting component 130 includes:

[0079] A positioning spring 131 is mounted on the base 110 and is located in the mounting groove 111.

[0080] The limiting piece 132 is disposed on the end of the positioning spring 131 away from the base 110. When several permanent magnet sheets 121 are disposed in the mounting groove 111, the limiting piece 132 is in contact with the outermost permanent magnet sheet 121.

[0081] In this embodiment, the base 110 has a hole for mounting the positioning spring 131. When the permanent magnet sheet 121 is installed in the mounting groove 111, the limiting piece 132 moves toward the spring, thereby causing the positioning spring 131 to contract. The positioning spring 131 presses against the limiting piece 132, and at the same time, the limiting piece 132 is in contact with the outermost permanent magnet sheet 121, thereby controlling the number of permanent magnet sheets 121 of the same length.

[0082] Furthermore, the number of permanent magnet sheets 121 of the same length can be determined according to the thickness of the permanent magnet sheet 121. Scale lines can be set on the outer shell to ensure that permanent magnet sheets 121 of different thicknesses are spliced ​​together to achieve the same length.

[0083] like Figures 1-3 As shown, in one embodiment,

[0084] The limiting roller assembly 140 includes:

[0085] The first fixing block 141 is disposed on one end of the base 110 near the permanent magnet sheet 121;

[0086] The second fixing block 142 is disposed on one end of the base 110 near the positioning spring 131, and the second fixing block 142 is provided with a plurality of interconnected slots 143.

[0087] Two rubber magnetic limit rollers 144, one end of each of the two rubber magnetic limit rollers 144 is set on the first fixed block 141, and the other end is set in the slot 143;

[0088] The limiting roller assembly 140 also includes:

[0089] A rotating block 145 is mounted on a first fixed block 141. The ends of two rubber magnetic limit rollers 144 away from the slot 143 are both mounted on the rotating block 145. The first fixed block 141 has a notch that is adapted to the two rubber magnetic limit rollers 144.

[0090] In this embodiment, one end of the rubber magnetic limiting roller 144 is engaged with the slots 143 at different positions, thereby adjusting the angle of the rubber magnetic limiting roller 144. The end of the rubber magnetic limiting roller 144 away from the slots 143 is fixed to the rotating block 145. When the rubber magnetic limiting roller 144 is engaged with the slots 143 at different positions, the rotating block 145 rotates relative to the first fixed block 141, thereby realizing the angle adjustment of the rubber magnetic limiting roller 144.

[0091] Furthermore, the rotating block 145 has a certain degree of elasticity to adapt to the angle change of the rubber magnetic limit roller 144;

[0092] Furthermore, the second fixing block 142 is made of elastic rubber material and is vertically fixed to the upper part of the base 110 platform by bolts, opposite to one end of the rubber magnetic limit roller 144;

[0093] Furthermore, a spring (not shown in the figure) may be provided at the rotating block 145. The two ends of the spring are connected to the first fixed block 141 and the rotating block 145 respectively. The spring supports the rotating block 145 to ensure that the rubber magnets on the left and right sides can be fully compressed.

[0094] like Figures 1-3 As shown, in one embodiment,

[0095] The rubber magnetic limit roller 144 includes:

[0096] The central shaft 1441 has one end mounted on the rotating block 145 and the other end mounted in the slot 143.

[0097] Rubber roller surface 1442 is mounted on central shaft 1441.

[0098] In this embodiment, the rubber roller surface 1442 is mounted on the central shaft 1441 by bearings. The relative rotation between the outer rubber roller surface 1442 and the central shaft 1441 is achieved by bearing assembly. One end of the central shaft 1441 is fixed on the rotating block 145, and the other end is engaged with the slot 143.

[0099] The width of the slot 143 is 0.85 to 0.95 times the diameter of the central shaft 1441, forming a clamping force on the central shaft 1441.

[0100] When magnetizing, a suitable magnetic pole spacing is selected according to the thickness of the rubber magnet. The preferred size is 0.2 to 3 times the thickness of the rubber magnet. Permanent magnet sheets 121 of the same thickness are made according to the magnetic pole spacing.

[0101] Then, determine the number of permanent magnet sheets 121 according to the width of the rubber magnet, lift the rubber magnet limiting roller 144, and install the permanent magnet sheets 121 in the mounting groove 111 of the base 110 in sequence, and fasten them by the limiting plate 132 and the positioning spring 131. The length of the permanent magnet sheet array 121 is preferably 1.2 to 1.5 times the width of the rubber magnet.

[0102] The flattened long sheet of rubber magnet is inserted from one end of the base 110 and laid flat on the upper part of the permanent magnet sheet 121 array. It is fixed in the fixed roller slot 143 by the pressure of the rubber magnet limiting roller 144, so as to achieve full adhesion between the rubber magnet and the permanent magnet sheet 121 array.

[0103] The long sheet-shaped rubber magnet is pulled forward at a constant speed from the other end of the base 110, thereby achieving continuous magnetization of the rubber magnetic sheet with a precise small magnetic pole spacing;

[0104] Using the magnetizing device 100 and magnetizing method of this invention, the rubber magnet can have a magnetic field distribution with a precise small pole spacing. The overall magnetic field strength can be increased by 10% to 20% compared with the traditional overall magnetizing process, which fully utilizes the magnetic potential of the rubber magnet, effectively saves costs, and is an economical and feasible solution to improve the rubber magnet.

[0105] The magnetization device of this invention is simple to operate, has high production efficiency, and stable product performance, which is conducive to its widespread application.

[0106] The functions of each module in each device of this utility model embodiment can be found in the corresponding description in the above method, and will not be repeated here.

[0107] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0108] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0109] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rubber magnetic charging device, characterized in that, include: The base has a mounting groove. A magnetic sheet assembly, wherein the magnetic sheet assembly is disposed in a mounting slot in the base; A limiting component is disposed on the base and is fitted with the magnetic sheet assembly to fix the magnetic sheet assembly in the mounting groove of the base; A limiting roller assembly is disposed on the base and located above the magnetic sheet assembly, with a rubber magnet passing between the magnetic sheet assembly and the limiting roller assembly.

2. The rubber magnetic charging device according to claim 1, characterized in that, The size of the opening of the mounting slot is smaller than the size of the bottom of the mounting slot.

3. The rubber magnetic charging device according to claim 1, characterized in that, The magnetic sheet assembly includes: A plurality of permanent magnet sheets are disposed in the mounting groove, with the outermost permanent magnet sheet being attached to the limiting component.

4. The rubber magnetic charging device according to claim 3, characterized in that, The thickness of the permanent magnet sheet is 0.5-3mm, the rounded corner R≤0.1mm, and the thickness direction accuracy is controlled within ±0.01mm.

5. A rubber magnetic charging device according to claim 4, characterized in that, The shape of the permanent magnet sheet is adapted to the mounting groove.

6. The rubber magnetic charging device according to claim 3, characterized in that, The base also has a mounting narrow slot, which is disposed on the base. Several permanent magnet sheets are installed in the mounting slot through the mounting narrow slot. The width of the uppermost part of the mounting narrow slot is 1 / 3 to 1 / 6 of the maximum width of the permanent magnet sheet.

7. A rubber magnetic charging device according to claim 3, characterized in that, The limiting component includes: A positioning spring is disposed on the base and located within the mounting groove; A limiting piece is disposed on the end of the positioning spring away from the base. When a plurality of permanent magnet sheets are disposed in the mounting groove, the limiting piece is in contact with the outermost permanent magnet sheet.

8. A rubber magnetic charging device according to claim 7, characterized in that, The limiting roller assembly includes: A first fixing block is disposed on one end of the base near the permanent magnet sheet; The second fixing block is disposed on one end of the base near the positioning spring, and the second fixing block is provided with multiple interconnected slots; Two rubber magnetic limiting rollers, one end of each of the two rubber magnetic limiting rollers is set on the first fixing block, and the other end is set in the slot.

9. A rubber magnetic charging device according to claim 8, characterized in that, The limiting roller assembly also includes: A rotating block is provided on the first fixed block. The ends of the two rubber magnetic limiting rollers away from the slot are both provided on the rotating block. The first fixed block is provided with a notch adapted to the two rubber magnetic limiting rollers.

10. A rubber magnetic magnetizing device according to claim 9, characterized in that, The rubber magnetic limiting roller includes: A central shaft, one end of which is disposed on the rotating block and the other end of which is disposed in the slot; A rubber roller surface, which is disposed on the central shaft.

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