CN211683691U - A dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device - Google Patents

Abstract

The utility model discloses a dry pressing sintering ferrite multipolar magnetic ring automatic material conveying device belongs to ferrite multipolar magnetic ring technical field. The utility model discloses including feed bin and pay-off box, feed bin bottom and pay-off box upper portion are connected with the conveying pipe, and wherein the pay-off box is the hollow box body structure in bottom, and the pay-off box is reciprocating motion along being close to or keeping away from the suppression station direction under power unit's drive. The utility model aims to overcome the not enough that the intensity of labour who adopts artifical manual reinforced to lead to is big, inefficiency in the production link of current dry pressing sintering ferrite multipolar magnetic ring, provide a dry pressing sintering ferrite multipolar magnetic ring automatic material conveying device, not only reduced workman's intensity of labour, guaranteed reinforced uniformity, and improved production efficiency.

Description

A dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device

technical field

The utility model relates to the technical field of ferrite multi-pole magnetic rings, in particular to an automatic feeding device for dry-pressed sintered ferrite multi-pole magnetic rings.

Background technique

High-performance dry-pressed anisotropic multi-pole magnetic rings are mainly used in the manufacture of brushless motors, stepper motors and permanent magnet synchronous motors. Common end products such as air conditioners and refrigerator compressors, fans, various micro water pumps, dishwashers, Mahjong machines and various power tools. Compared with the common ferrite magnetic tile, the multi-pole magnetic ring has obvious advantages, mainly in: 1. The magnetic circuit waveform on the surface of the magnetic ring is a sinusoidal waveform (generally the magnetic tile is a square wave or a saddle wave), which is conducive to optimizing the performance design of the motor . 2. The motor assembled with multi-pole magnetic ring has stable operation, low noise and high precision, which can greatly reduce the cogging effect. 3. Studies have shown that the magnetic field strength on the surface of the multi-pole magnetic ring is significantly higher than that of the tile-shaped magnet of the same specification, generally 20% to 50% higher. 4. The application of multi-pole magnetic ring is conducive to the automatic production of motor assembly, and the installation accuracy is high, convenient and economical.

However, high-performance dry-pressed anisotropic multi-pole magnetic rings are difficult to produce by conventional wet molding, and are usually made of high-performance anisotropic dry-pressed permanent magnet sintered ferrite. In the production process of dry-pressed sintered ferrite multi-pole magnetic rings, the pressing process is the process of filling the powder into the mold. In the prior art, it is usually manually poured into the mold with a spoon or bowl, which is inefficient. , and the consistency is poor. Therefore, it is particularly important to design an automatic feeding device for dry-pressed sintered ferrite multi-pole magnetic rings.

After searching, a large number of patents have been published on the automatic feeding device of multi-pole magnetic rings, such as the Chinese patent application number: 201420552367X, the name of the invention is: anisotropic wet-pressed sintered ferrite multi-pole magnetic ring feeding device, this application Disclosed is an anisotropic wet-pressed sintered ferrite multi-pole magnetic ring feeding device, comprising a rotating mechanism, a hydraulic cylinder, a mold, a fixing frame, an upper connecting rod and a lower connecting rod, and the rotating mechanism is provided with a hydraulic cylinder and a fixing frame, The fixing frame is fixedly connected with the mold, one end of the upper connecting rod is connected with the hydraulic cylinder, the other end is provided with an upper indenter, one end of the lower connecting rod is connected with the hydraulic cylinder, and the other end is provided with a lower indenter, the ends of the upper indenter and the lower indenter are both. A filter paper sheet is set, the central axis of the upper indenter and the lower indenter are on the same line, the mold is a hollow cylinder, and a grouting port is set symmetrically in the middle. The limit extends into the mold. This solution is a good exploration of the automatic feeding device of the multi-pole magnetic ring, but there is still room for further improvement, and the research on the automatic feeding device of the multi-pole magnetic ring in the industry has never stopped.

Utility model content

1. Technical problems to be solved by the utility model

The purpose of the utility model is to overcome the shortcomings of high labor intensity and low efficiency caused by manual manual feeding in the production process of the existing dry-pressed sintered ferrite multi-pole magnetic ring, and provides a dry-pressed sintered ferrite multi-pole magnetic ring. The pole magnetic ring automatic feeding device not only reduces the labor intensity of workers, ensures the consistency of feeding, but also improves the production efficiency.

2. Technical solutions

In order to achieve the above object, the technical scheme provided by the present utility model is:

The utility model relates to an automatic feeding device for dry-pressed sintered ferrite multi-pole magnetic rings, comprising a silo and a feeding box. A feeding pipe is connected to the bottom of the silo and the upper part of the feeding box, wherein the feeding box is a box structure with a hollow bottom. And the feeding box reciprocates in the direction of approaching or away from the pressing station under the driving of the power unit.

As a further improvement of the utility model, a plurality of discharge ports are provided at the bottom of the silo, each discharge port is provided with a discharge pipe, and the bottom end of the discharge pipe is connected with the upper end of the feed pipe.

As a further improvement of the present utility model, an on-off valve for controlling the flow of powder is arranged between the discharge pipe and the feed pipe.

As a further improvement of the utility model, the upper end of the feeding box is provided with the same number of feeding ports as the discharging ports, each feeding port is equipped with a feeding pipe, one end of the feeding pipe is connected with the feeding pipe, and the feeding pipe is connected to the feeding pipe. The other end of the tube extends into the feed box.

As a further improvement of the utility model, a plurality of steam exhaust holes are opened on the material receiving pipe.

As a further improvement of the present invention, a vibrator is attached to the outer side of the silo.

As a further improvement of the present invention, the bottom of the silo is a pyramid-shaped structure with a gradually decreasing section, and a first stirring shaft is arranged in the silo, and a stirring blade is arranged on the first stirring shaft.

As a further improvement of the present invention, a second stirring shaft is arranged in the feeding box, and stirring blades are also arranged on the second stirring shaft.

As a further improvement of the present invention, the two sides of the feeding box are provided with sliding rails, and both sides of the feeding box are provided with sliding blocks matched with the sliding rails, wherein the feeding box reciprocates under the driving of the power unit.

As a further improvement of the present invention, connecting plates are arranged on both sides in the longitudinal direction of the feeding box to extend outward, and the bottom of the connecting plates is provided with a sliding block matched with the sliding rail.

3. Beneficial effects

Compared with the prior art, the technical scheme provided by the present utility model has the following beneficial effects:

(1) A dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device of the present invention, the feeding box pushes the powder in the feeding box to the mold on the pressing station on the pressing table under the driving of the power unit Pressing inside the mold realizes automatic feeding and avoids the problems of uneven powder addition and waste of powder caused by manually adding powder to the mold, which not only reduces the labor intensity of workers and ensures the consistency of feeding, but also Improve production efficiency and reduce production costs.

(2) A dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device of the present invention, the design of a plurality of material receiving ports can simultaneously perform pressing work on a plurality of pressing stations, and can not only avoid the in-feed box The powder appears to accumulate, overflow and other phenomena, and can improve the production efficiency. The number of the discharge port and the material receiving port is set according to the actual use requirements, so as to ensure that each pressing station is provided with a feeding pipe, and the powder can evenly fall into the mold of each pressing station, so as to avoid the occurrence of various molds. The phenomenon of uneven feeding.

(3) In a dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device of the present invention, an on-off valve for controlling the flow of powder is arranged between the discharge pipe and the feeding pipe. When the station needs to be pressed, the on-off valve is in a connected state. At this time, the powder in the silo falls smoothly into the top of the pressing station through the discharge pipe for pressing; when the pressing station corresponding to the discharge pipe does not need to be pressed. During the pressing work, the on-off valve is in a disconnected state, and the powder in the silo will not fall into the corresponding feeding pipe below. The setting of the on-off valve can open the powder supply of the feeding pipe above the pressing station at a fixed point according to the needs of on-site use, which will not cause powder accumulation and waste.

(4) A dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device of the present invention, the bottom of the silo is a pyramid-shaped structure with a gradually decreasing cross-section, which helps to speed up the falling speed of the powder, and the inside of the silo is A first stirring shaft is provided, and a stirring blade is arranged on the first stirring shaft, which can stir the powder in the silo evenly, prevent the powder from agglomerating, and ensure that the powder is in a loose state.

Description of drawings

Fig. 1 is the structural representation of a kind of dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device of the present invention;

Fig. 2 is the structural representation of the feeding box in the utility;

FIG. 3 is a schematic diagram of the structure of the positioning groove.

Description of the labels in the diagram:

100, silo; 110, fixed part; 120, first stirring shaft; 130, discharge pipe; 140, feeding pipe; 200, feeding box; 210, material receiving port; 220, material receiving pipe; 221, steam exhaust hole 230, the second stirring shaft; 240, the connecting plate; 250, the slider; 260, the slide rail; 300, the power unit; 310, the hydraulic push rod; 400, the fixed plate;

Detailed ways

In order to further understand the content of the present utility model, the present utility model is described in detail with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

The present utility model will be further described below in conjunction with the embodiments.

Example 1

1-3, a dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device of this embodiment includes a silo 100 and a feeding box 200 placed on the pressing table of the dry powder press. The bottom of the silo 100 and the A feeding pipe 140 is connected to the upper part of the feeding box 200 . As shown in FIG. 1 , the silo 100 is installed above the feeding box 200 , and the powder in the silo 100 is transported to the feeding box 200 through the feeding pipe 140 under the action of gravity. The feeding box 200 is a box structure with a hollow bottom. The powder falls into the feeding box 200 and directly contacts the pressing table, and the feeding box 200 reciprocates along the width direction of the pressing table under the drive of the power unit 300, that is, feeding Driven by the power unit 300, the box 200 pushes the powder in the feeding box 200 to the mold on the pressing station on the pressing table for pressing, which avoids powder addition caused by manually adding powder to the mold. Problems such as unevenness and waste of powder material reduce the size fluctuation of the pressed product and avoid affecting the subsequent processing procedures and the qualified rate of the product. In this embodiment, the power unit 300 includes a hydraulic push rod 310 and a hydraulic pump. The end of the hydraulic push rod 310 away from the hydraulic pump is connected to the back of the feeding box 200 (ie, the side away from the pressing station). The hydraulic drive is simple and easy to obtain and easy to use. The above feeding process realizes automatic feeding into the mold on the pressing station, which not only reduces the labor intensity of workers, ensures the consistency of feeding, but also improves production efficiency and reduces production costs.

As shown in FIG. 1 , in this embodiment, the bottom of the silo 100 is provided with a plurality of discharge ports, each discharge port is provided with a discharge pipe 130, and the bottom end of the discharge pipe 130 is connected with the upper end of the feed pipe 140; The upper end of the feeding box 200 is provided with the same number of feeding ports 210 as the discharging ports. Each feeding port 210 is provided with a feeding pipe 220. One end of the feeding pipe 220 is connected with the feeding pipe 140. The other end extends into the feeding box 200 . The design of the plurality of material receiving ports 210 can simultaneously perform pressing work on a plurality of pressing stations, which can not only avoid the accumulation and overflow of powder in the feeding box 200, but also improve the production efficiency. The number of the discharge port and the material receiving port 210 is set according to the actual use requirements. Specifically, the number of the discharge port can be correspondingly set according to the number of pressing stations, so as to ensure that the receiving pipe 220 is provided above each pressing station. The material can evenly fall into the mold of each pressing station, avoiding the phenomenon of uneven feeding in each mold. In this embodiment, an on-off valve for controlling the flow of powder material is arranged between the discharge pipe 130 and the feeding pipe 140. When the pressing station corresponding to the discharge pipe 130 needs to perform pressing work, the on-off valve is in a connected state. At this time, the powder in the silo 100 smoothly falls above the pressing station through the discharge pipe 130 to perform the pressing work; when the pressing station corresponding to the discharge pipe 130 does not need to perform pressing work, the on-off valve is in a disconnected state, At this time, the powder in the silo 100 will not fall into the corresponding feeding pipe 140 below. The setting of the on-off valve can open the powder supply of the feeding pipe 140 above the pressing station at a fixed point according to the needs of on-site use, so that the phenomenon of powder accumulation and waste will not be caused.

As shown in FIG. 2 , in this embodiment, a plurality of steam exhaust holes 221 are formed on the feeding pipe 220 . Specifically, the feeding pipe 220 extends into the bottom of the feeding box 200 and is provided with a plurality of steam exhaust holes 221 for discharging steam. The high-temperature steam generated when the powder is pushed can prevent the temperature and humidity of the powder in the feeding box 200 from being too high, which is helpful for the pressing of the powder in the later stage. In this embodiment, the feeding tube 220 is inclined and provided to provide a buffering force when the powder falls into the feeding box 200, so as to avoid excessive impact force when the powder falls, and avoid excessive dust and powder accumulation. etc. phenomenon. In this embodiment, a second stirring shaft 230 is arranged in the feeding box 200, and stirring blades are also arranged on the second stirring shaft 230. Specifically, in this embodiment, the second stirring shaft 230 is arranged below the feeding pipe 220, from After the powder falling from the feeding pipe 220 is stirred by the stirring blades on the second stirring shaft 230, the phenomenon of powder agglomeration will not occur, so that the powder used for pressing in the later stage is more uniform, and the quality of the pressed product is improved. In this embodiment, the top cover plate of the feeding box 200 does not completely cover the top of the feeding box 200, and the top cover plate is provided with a material receiving port 210, and the material receiving pipe 220 extends through the material receiving port 210 into the interior of the material feeding box 200, Since the top of the feeding box 200 is not completely covered, the accumulation of powder in the feeding box 200 can be observed at any time, so as to perform corresponding operations to avoid the phenomenon of powder overflowing.

As shown in FIG. 2 , in this embodiment, sliding rails 260 are provided on both sides of the feeding box 200 in the length direction, the sliding rails 260 extend along the width direction of the feeding box 200 , and both sides of the feeding box 200 are provided with sliding rails 260 . The sliding block 250 is matched, wherein the feeding box 200 reciprocates under the driving of the power unit 300 . Specifically, in this embodiment, connecting plates 240 are provided on both sides of the feeding box 200 in the longitudinal direction extending outward, and the bottom of the connecting plate 240 is provided with a sliding block 250 that cooperates with the sliding rail 260 , and the sliding block 250 cooperates with the sliding rail 260 The movement resistance of the feeding box 200 on the pressing table is reduced, and the movement of the feeding box 200 will not be offset from left to right, thereby ensuring the stability of the reciprocating motion of the feeding box 200 . Specifically, as shown in FIG. 2 , in this embodiment, a positioning groove is formed in the center of the slide rail 260 , the bottom of the slider 250 is a sliding portion, and the sliding portion fits into the positioning groove along the length of the slide rail 260 . direction move. In this embodiment, there are certain gaps between the two sides of the box body in the longitudinal direction of the feeding box 200 and the sliding rails 260 on both sides respectively, which avoids the contact friction between the two sides of the box body of the feeding box 200 and the sliding rails 260, and facilitates sliding The block 250 moves in the slide rail 260 without jamming, so that the powder is pushed more smoothly.

As shown in FIG. 1 , in this embodiment, the bottom of the silo 100 is a pyramid-shaped structure with a gradually decreasing cross-section, which helps to speed up the falling speed of the powder, and the silo 100 is provided with a first stirring shaft 120. The shaft 120 is provided with a stirring blade, which can stir the powder in the silo 100 evenly, prevent the powder from agglomerating, and ensure that the powder is in a loose state. In this embodiment, a vibrator (not shown in the figure) is attached to the outer side of the silo 100. Specifically, it can be arranged on the outer wall below the silo 100, which can vibrate the powder, not only prevent the powder from forming It can also speed up the supply and fall of powder.

When this embodiment is used specifically, according to whether the pressing station on the pressing table is working, adjust the on-off valve between the discharge pipe 130 and the feeding pipe 140 at the corresponding position, start the hydraulic pump, and the feeding box 200 is pushed on the hydraulic push rod 310 Move the powder to the direction of the pressing station under the push of the pressing force, and push the powder into the mold of the pressing station on the pressing table. The feeding box 200 goes back to the initial position. At this time, the dry powder press is started to descend to press the powder. Complete the whole automatic feeding pressing process.

Example 2

The structure of the dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device of this embodiment is basically the same as that of Embodiment 1, and the difference is that the feeding box 200 is a box structure, and the bottom of the feeding box 200 is provided with For the through hole corresponding to the position of the pressing station, the powder falls into the through hole after coming out of the material receiving pipe 220, and then is pushed to the corresponding pressing station for pressing, so as to avoid the phenomenon of waste of powder.

As shown in FIG. 3 , in this embodiment, fixing portions 110 are provided on both sides of the silo 100 in the length direction. Specifically, in this embodiment, the fixing portion 110 is a cylindrical structure, and the racks on both sides of the silo 100 are provided with The fixing plate 400 is provided with a plurality of positioning grooves 410 along the length direction. The positioning grooves 410 are U-shaped grooves. For the matching arc-shaped segment, two sides of the arc-shaped segment are connected with straight line segments which are relatively inclined outwardly, so that the opening gradually increases upwards, which is convenient for the embedding of the fixing portion 110 . The setting of the plurality of positioning slots 410 is convenient for adjusting the front and rear positions of the silo 100 according to the actual situation on the site, and the setting of the arc-shaped section at the bottom of the positioning slots 410 facilitates the flexibility of the rotation of the fixed part 110 in the positioning slot 410 when the feeding box 200 moves back and forth. .

In this embodiment, a sealing ring is also provided at the connection between the feeding pipe 220 and the feeding pipe 140 to prevent the powder from leaking.

The present invention and its embodiments have been schematically described above, and the description is not restrictive, and what is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it, without departing from the purpose of creation of the present invention, without creative design of the structure and embodiment similar to the technical solution, all should belong to the present invention. protected range.

Claims (10)

1. A dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device, characterized in that: comprising a silo (100) and a feeding box (200), the bottom of the silo (100) and the upper part of the feeding box (200) are connected with The feeding tube (140), wherein the feeding box (200) is a box structure with a hollow bottom, and the feeding box (200) reciprocates in the direction of approaching or away from the pressing station under the driving of the power unit (300). 2. A dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device according to claim 1, characterized in that: a plurality of discharge ports are provided at the bottom of the silo (100), and each discharge port is A discharge pipe (130) is installed, and the bottom end of the discharge pipe (130) is connected with the upper end of the feed pipe (140). 3. A dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device according to claim 2, characterized in that: between the discharge pipe (130) and the feed pipe (140), there is arranged to control whether the powder is in circulation on-off valve. 4. A dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device according to claim 2, characterized in that: the upper end of the feeding box (200) is provided with the same number of feeding ports (210) as the number of discharging ports. , a material receiving pipe (220) is installed at each material receiving port (210), one end of the material receiving pipe (220) is connected with the feeding pipe (140), and the other end of the material receiving pipe (220) extends to the feeding box ( 200). 5 . The automatic feeding device for dry-pressed sintered ferrite multi-pole magnetic rings according to claim 4 , wherein a plurality of steam exhaust holes ( 221 ) are opened on the feeding pipe ( 220 ). 6 . 6. A dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device according to claim 1, characterized in that a vibrator is fitted on the outer side of the silo (100). 7. The automatic feeding device for dry-pressed sintered ferrite multi-pole magnetic rings according to any one of claims 1-6, wherein the bottom of the silo (100) is a pyramid-shaped structure with a gradually decreasing cross-section, A first stirring shaft (120) is arranged in the silo (100), and stirring blades are arranged on the first stirring shaft (120). 8. The automatic feeding device for dry-pressed sintered ferrite multi-pole magnetic rings according to claim 7, wherein the feeding box (200) is provided with a second stirring shaft (230), and the second stirring shaft ( 230) is also provided with stirring blades. 9. A dry-pressed sintered ferrite multi-pole magnetic ring automatic feeding device according to claim 1, characterized in that: the two sides of the feeding box (200) are provided with sliding rails (260), and the feeding box (200) ) are provided with sliding blocks (250) matched with the sliding rails (260) on both sides, wherein the feeding box (200) reciprocates under the driving of the power unit (300). 10. The automatic feeding device for dry-pressed sintered ferrite multi-pole magnetic rings according to claim 9, characterized in that: connecting plates (240) are extended outwards on both sides of the feed box (200) in the longitudinal direction, The bottom of the connecting plate (240) is provided with a sliding block (250) matched with the sliding rail (260).

Images