Arc-shaped magnetic shoe forming die

Abstract

The invention relates to the technical field of magnetic shoes, in particular to an arc-shaped magnetic shoe forming die which comprises a bottom plate, a stand column arranged on the bottom plate and a top cover covering the other end of the stand column, an annular cavity is formed in the stand column, a plurality of sets of separation plugs are evenly distributed in the annular cavity in the circumferential direction, and a gap is formed between every two adjacent separation plugs to form a magnetic shoe cavity. The separating plug comprises two side pressure heads which are arranged at an interval, and a pressure cavity is formed between the two side pressure heads; an auxiliary channel corresponding to the pressure cavity is formed in the stand column, and in the working state, the auxiliary channel introduces media into the pressure cavity and forces the side pressing head to press the magnetic shoe in the magnetic shoe cavity. According to the invention, through the arrangement of the annular cavity, the plurality of magnetic shoes can interfere with each other when being molded at the same time, so that the plurality of magnetic shoes can be uniformly stressed, and after one-time molding, the plurality of magnetic shoes in the annular cavity can be just used on one motor and can mutually form a magnetic shoe group for the same motor, so that the magnetic performance of the motor in the use process is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic tiles, in particular to a curved magnetic tile forming mould. Background Art

[0002] The arc-shaped magnetic tile forming mold is a special tool used to manufacture arc-shaped magnetic tiles. In modern industry, especially in the production process of motors, generators, speakers, sensors and other equipment, arc-shaped magnetic tiles are becoming more and more important due to their specific shape and performance requirements. These magnetic tiles usually need to have high magnetic energy product, good temperature stability and mechanical strength to meet the needs of different applications. Therefore, for the molds used to manufacture these magnetic tiles, their design and manufacturing quality directly affect the performance of the final product. According to different production processes, compression molding is the most common method of forming arc-shaped magnetic tiles. It is done by placing powdered magnetic materials into a mold and pressing them into the desired shape under a certain temperature and pressure.

[0003] In actual production, the uniformity of the magnetic tiles after pressing is an important factor affecting the performance of the magnetic tiles. Summary of the invention

[0004] The present invention aims at the problem of uniformity of magnetic tile pressing in the prior art, and provides an arc-shaped magnetic tile forming mold, so that a plurality of magnetic tiles are formed simultaneously in an annular cavity, and the plurality of magnetic tiles interfere with each other, and the pressure is mutually communicated and balanced. The uniformity of the plurality of magnetic tiles in the same annular cavity after forming is the same, and they can directly act in a motor. The specific technical scheme is as follows:

[0005] The arc-shaped magnetic tile forming mold comprises a bottom plate, a column arranged on the bottom plate, and a top cover covering the other end of the column, wherein the column has an annular cavity, and a plurality of groups of partition plugs are evenly arranged in the circumferential direction of the annular cavity, and a gap is formed between two adjacent partition plugs to form a magnetic tile cavity, and the partition plug comprises two side pressure heads arranged at intervals, and a pressure cavity is formed between the two side pressure heads;

[0006] A secondary channel corresponding to the pressure chamber is provided in the column. In the working state, the secondary channel allows the medium to flow into the pressure chamber and forces the side pressure head to press the magnetic tile in the magnetic tile chamber.

[0007] A main channel is also provided in the column, and a plurality of secondary channels are interconnected through the main channel.

[0008] As a further technical solution of the present invention, a support is provided between the two side pressure heads, the support is slidably connected to the two side pressure heads, and the support is mounted on the bottom plate.

[0009] As a further technical solution of the present invention, a spring is connected between the support and the side pressure head.

[0010] As a further technical solution of the present invention, the column includes a middle column and an outer ring arranged outside the middle column, and the middle column and the outer ring are arranged at intervals and form an annular cavity.

[0011] As a further technical solution of the present invention, the outer ring includes at least two circumferentially distributed arc plates, and a hydraulic push rod is provided on the outer side of each arc plate. The hydraulic push rod is installed on the base plate and the output end is connected to the arc plate. In the working state, multiple hydraulic push rods synchronously drive multiple arc plates to retract inward and cooperate with the middle column to form the ring cavity.

[0012] The beneficial effects of the present invention are as follows:

[0013] (1) In the present application, by setting up the annular cavity, several magnetic tiles can be formed at the same time. Due to the particularity of the annular cavity, several magnetic tiles will interfere with each other when they are formed at the same time, which can make the several magnetic tiles bear force evenly, thereby improving the uniformity of the magnetic tiles. That is to say, after one molding, several magnetic tiles in the annular cavity can be used just for one motor, changing the traditional manufacturing method. The magnetic tiles manufactured by the manufacturing method of the present application can form a magnetic tile group for the same motor to ensure the magnetic performance of the motor during use;

[0014] (2) In the present application, several auxiliary channels that provide medium to the pressure chamber are interconnected so that the pressures between the several pressure chambers are the same, thereby allowing the pressures of several magnetic tiles to be evenly distributed when they interfere with each other during molding, which is beneficial to the uniformity between multiple magnetic tiles that are molded simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structural schematic diagram of the arc-shaped magnetic tile forming mold is shown;

[0016] Figure 2 A schematic diagram of the structure of the column is shown;

[0017] Figure 3 shows a schematic diagram of the structure of the outer ring;

[0018] Figure 4 A schematic diagram of the internal structure of the central column and the annular cavity is shown;

[0019] Figure 5 A schematic structural diagram of the septum plug is shown.

[0020] Description of the drawings: 100, bottom plate; 200, column; 210, middle column; 211, main channel; 212, secondary channel; 220, outer ring; 221, arc plate; 222, hydraulic push rod; 230, annular cavity; 231, partition plug; 2311, support column; 2312, side pressure head; 2313, pressure cavity; 2314, spring; 232, magnetic tile cavity; 300, top cover. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0022] Figure 1 The structural schematic diagram of the arc-shaped magnetic tile forming mold is shown; Figure 2 shows a schematic structural diagram of a column 200; Figure 1 and Figure 2 In the present invention, the arc-shaped magnetic tile forming mold includes a base plate 100, a column 200 arranged on the base plate 100, and a top cover 300 covering the other end of the column 200. The column 200 includes a middle column 210 and an outer ring 220 arranged outside the middle column 210. The middle column 210 and the outer ring 220 are arranged at intervals and form an annular cavity 230; the annular cavity 230 provides space for magnetic tile forming, and can form several magnetic tiles at the same time. Due to the particularity of the annular cavity 230, several magnetic tiles will interfere with each other when they are formed at the same time, which can make several magnetic tiles evenly stressed, thereby improving the uniformity of the magnetic tiles. That is to say, after one-time forming, several magnetic tiles in the annular cavity 230 can be used just on one motor, changing the traditional manufacturing method. The magnetic tiles manufactured by the manufacturing method of the present application can form a magnetic tile group for the same motor with each other to ensure the magnetic properties of the motor during use.

[0023] It should be noted that the inner diameter and outer diameter of the annular cavity 230 are customized according to the magnetic tiles to be produced, and are not limitations to the present application.

[0024] Figure 3 The schematic diagram of the structure of the outer ring 220 is shown; the outer ring 220 includes four circumferentially distributed arc plates 221, and a hydraulic push rod 222 is arranged on the outer side of each arc plate 221. The hydraulic push rod 222 is installed on the base plate 100 and the output end is connected to the arc plate 221. In the working state, the four hydraulic push rods 222 synchronously drive the four arc plates 221 to retract inward and cooperate with the middle column 210 to form the annular cavity 230; by decomposing an outer ring 220 into four arc plates 221, and being able to use the hydraulic push rod 222 to drive the arc plate 221 to move into position, the outer ring 220 is exploded, which is beneficial to the demoulding of the magnetic tile after molding. At the same time, after demoulding, the hydraulic push rod 222 can drive the arc plate 221 to reset and cooperate with the middle column 210 again to form the annular cavity 230 for easy reuse.

[0025] It should be noted that, in the present embodiment, the number of arc plates 221 is four, but in some other embodiments, the number of arc plates 221 is not limited and may be two, three, five, etc., that is, the number of arc plates 221 may be two or more.

[0026] Figure 4The schematic diagram of the internal structure of the middle column 210 and the annular cavity 230 is shown; Figure 5 A schematic diagram of the structure of the septum plug 231 is shown; Figure 4 and Figure 5 In the annular cavity 230, a plurality of groups of partition plugs 231 are evenly arranged in the circumferential direction, and a gap is formed between two adjacent partition plugs 231 to form a magnetic tile cavity 232. The partition plug 231 includes two side pressure heads 2312 arranged at intervals, and a pressure cavity 2313 is formed between the two side pressure heads 2312. A secondary channel 212 corresponding to the pressure cavity 2313 is opened in the middle column 210, and the secondary channel 212 is connected to the pressure cavity 2313. In the working state, the secondary channel 212 passes the medium into the pressure cavity 2313 and forces the side pressure head 2312 to press the magnetic tile. The magnetic tile in the cavity 232; since the secondary channel 212 can pass the pressure medium into the pressure cavity 2313, the two side pressure heads 2312 in the same group of diaphragms 231 can be moved away from each other, that is, the two adjacent side pressure heads 2312 in the adjacent groups of diaphragms 231 on both sides of the annular cavity 230 are close to each other, squeezing the space of the magnetic tile cavity 232, thereby pressing the magnetic tile in the magnetic tile cavity 232 to form; the middle column 210 is also provided with a main channel 211, and a plurality of secondary channels 212 are interconnected through the main channel 211; Since several auxiliary channels 212 are interconnected, the medium pressure entering each auxiliary channel 212 is equal. In this way, the pressure of several magnetic tile cavities 232 in the ring cavity 230 can be shared when interfering with each other, so that the mass distribution of multiple magnetic tiles formed at the same time is uniform and can cooperate with each other; a support 2311 is arranged between the two side pressure heads 2312, and the support 2311 is slidably connected to the two side pressure heads 2312, and the support 2311 is installed on the bottom plate 100; this is because when the outer ring 220 explodes, the septum plug 231 is subjected to When the restriction is released, it is easy to collapse, and the position of the side pressure head 2312 is limited by the support 2311, so that the side pressure head 2312 can be prevented from tipping over; a spring 2314 is connected between the support 2311 and the side pressure head 2312; the elastic force of the spring 2314 can be used to reset the side pressure head 2312 after the pressure is removed, so as to facilitate multiple uses; it should be noted that the spring 2314 is used as the resetting elastic member in this embodiment, but in some other embodiments, other elastic members such as reeds, paddles, elastic ropes, etc. can also be used.

[0027] It should be noted that the medium used in the present application is a fluid, that is, it can be a gas or a liquid.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A curved magnetic tile forming mold, comprising a bottom plate (100), a column (200) disposed on the bottom plate (100), and a top cover (300) covering the other end of the column (200), characterized in that: The column (200) has an annular cavity (230) therein, a plurality of groups of partition plugs (231) are evenly arranged in the circumferential direction of the annular cavity (230), a gap is provided between two adjacent partition plugs (231) to form a magnetic tile cavity (232), the partition plug (231) includes two side pressure heads (2312) arranged at intervals, and a pressure cavity (2313) is formed between the two side pressure heads (2312); The column (200) is provided with a secondary channel (212) corresponding to the pressure chamber (2313). In a working state, the secondary channel (212) allows a medium to flow into the pressure chamber (2313) and forces the side pressure head (2312) to press the magnetic tile in the magnetic tile chamber (232); A main channel (211) is also provided in the column (200), and a plurality of secondary channels (212) are interconnected through the main channel (211).

2. The arc-shaped magnetic tile forming mold according to claim 1, characterized in that: A support (2311) is provided between the two side pressure heads (2312), the support (2311) is slidably connected to the two side pressure heads (2312), and the support (2311) is mounted on the bottom plate (100).

3. The arc-shaped magnetic tile forming mold according to claim 2, characterized in that: An elastic member is connected between the support column (2311) and the side pressure head (2312).

4. The arc-shaped magnetic tile forming mold according to any one of claims 1 to 3, characterized in that: The column (200) comprises a middle column (210) and an outer ring (220) arranged outside the middle column (210); the middle column (210) and the outer ring (220) are arranged at intervals and form an annular cavity (230).

5. The arc-shaped magnetic tile forming mold according to claim 4, characterized in that: The outer ring (220) includes at least two circumferentially distributed arc plates (221), and a hydraulic push rod (222) is provided on the outer side of each arc plate (221). The hydraulic push rod (222) is installed on the base plate (100) and the output end is connected to the arc plate (221). In the working state, the multiple hydraulic push rods (222) synchronously drive the multiple arc plates (221) to retract inward and cooperate with the middle column (210) to form the annular cavity (230).

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