CN215468082U - Die cavity distributing device - Google Patents
Die cavity distributing device Download PDFInfo
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- CN215468082U CN215468082U CN202121675467.8U CN202121675467U CN215468082U CN 215468082 U CN215468082 U CN 215468082U CN 202121675467 U CN202121675467 U CN 202121675467U CN 215468082 U CN215468082 U CN 215468082U
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Abstract
The utility model discloses a die cavity material distribution device, which comprises a material supply box, material weighing equipment, vibrating equipment and linkage equipment, wherein the material weighing equipment is arranged on the material supply box; the mold is provided with at least two mold cavities, and the axial center lines of the at least two mold cavities are positioned on the same plane A; the feeding box is arranged above the die, and the bottom of the feeding box is provided with an opening; the material weighing device is arranged in the material supply box and used for weighing the rare earth alloy powder and supplying the rare earth alloy powder into the die cavity; the vibrating equipment is arranged close to the material weighing equipment and used for enabling the rare earth alloy powder in the material weighing equipment to fall into the corresponding die cavity through vibration; a linkage is connected to one side of the supply tank and located outside the supply tank, the linkage being for enabling the supply tank to reciprocate in the direction of the plane a. The cloth distributing device is simple in structure and uniform in cloth distribution, and can improve production efficiency.
Description
Technical Field
The utility model relates to a die cavity material distribution device.
Background
The process of pressing the rare earth magnetic powder adopts a powder metallurgy process, namely, the powder is pressed into a pressed compact with certain shape, size, strength and density. At present, three compression molding methods are adopted for rare earth permanent magnet powder, namely mould pressing, mould pressing and isostatic pressing; rubber molding or isostatic pressing. However, these press forming methods have problems such as cracks in the material due to unstable material distribution and deviation in pressure. Among them, an important cause of the unstable weight of the burden distribution is poor flowability of the rare earth alloy powder, resulting in difficulty in filling the powder in the supply tank into the die.
In order to uniformly fill the rare earth alloy powder having poor flowability into the die from the feed tank, a feed device is generally used which is constructed such that the feed tank having an opening at the bottom is moved above the die groove in the die, and the powder is fed from the charging bucket into the feed tank and filled into the die through the lower opening of the feed tank.
For example, japanese patent application 59-40560 discloses adding a rotating blade in the feed tank to fill excess powder in the feed tank into the mold. Japanese patent application 10-59198 discloses mounting a rotating spherical member at the bottom of the feed tank. And CN1258597A discloses a method and an apparatus for feeding a rare earth metal-based alloy powder, in which a feeding box with an opening at the bottom is moved above a die cavity to feed the powder into the die cavity, and a set of rod-shaped members are provided at intervals in order to distribute the material uniformly in the feeding box, and the feeding box is moved by the rod-shaped members to feed the powder into the die cavity. CN1347801A discloses a powder filling device comprising a container having a powder holding portion at the bottom thereof, the powder holding portion being provided with a plurality of openings through which powder can pass, and a striker member capable of colliding with the container. The impact member is made to collide with the container and an impact force is applied to the container, so that the powder contained in the container is filled into a cavity formed in a mold through a plurality of openings. CN104722754A discloses a method and apparatus for producing a rare earth sintered magnet. A die comprising a die, an upper punch and a lower punch is combined with a feeder comprising a lance and provided with a main screen at the lower end outlet of the lance. A cavity is defined between the die and the lower punch. Alloy powder was fed into the chamber by a lance.
However, in the prior art, a mold-cavity design is mostly adopted, and the mode works inefficiently. The production efficiency can be greatly improved by adopting a mode of distributing materials in multiple cavities, but the feeding of each cavity is uniform and the weight is the same. Among them, CN1272413A discloses a powder feeding device, which adopts a one-die multi-cavity design, but adopts a parallel die pressing method, and the orientation degree of the pressed blank is lower than that of the vertical die pressing method, and the prepared magnet has poor performance. In addition, in the technique of powder molding by vertical molding, a one-mold multi-cavity structure design is rarely adopted, and mainly, the one-mold multi-cavity structure causes uneven powder filling in each mold cavity.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a cavity distributing device. According to the utility model, the vertical mould pressing method is adopted to carry out powder distribution on multiple cavities in one mould, so that the distribution uniformity is improved compared with the traditional distribution mode, and the production efficiency is greatly improved by adopting a structure with multiple cavities in one mould.
The utility model achieves the above purpose through the following technical scheme.
The utility model provides a die cavity material distribution device, which is used for adding rare earth alloy powder into a die cavity of a die and comprises a feeding box, material weighing equipment, vibrating equipment and linkage equipment, wherein the feeding box is connected with the feeding box; wherein the content of the first and second substances,
the mold is provided with at least two mold cavities, and the axial center lines of the at least two mold cavities are positioned on the same plane A;
the feeding box is arranged above the die, and an opening is formed in the bottom of the feeding box;
the material weighing device is arranged in the material supply box and used for weighing the rare earth alloy powder and supplying the rare earth alloy powder into the die cavity;
the vibrating equipment is arranged close to the material weighing equipment and is used for enabling the rare earth alloy powder in the material weighing equipment to fall into the corresponding die cavity through vibration;
the linkage is connected to one side of the supply tank and located outside the supply tank, and the linkage is configured to enable the supply tank to reciprocate in the direction of the plane a.
According to the die cavity distributing device, preferably:
the material weighing equipment is of a hollow structure with an upper opening and a lower opening, and the diameter of the lower opening is smaller than or equal to that of the upper opening; the material weighing equipment further comprises a weight sensor, and the weight sensor is arranged in the hollow structure and is close to the lower opening;
the material weighing equipment is at least two.
According to the die cavity material distribution device, the hollow structure is preferably composed of an upper part and a lower part, the upper part is in a cylindrical structure, and the lower part is in an inverted conical structure.
According to the die cavity material distribution device, preferably, the top and the bottom of the feed box are respectively provided with at least two openings.
According to the die cavity material distribution device, preferably, the upper openings of the material weighing devices are respectively overlapped with the openings at the tops of the feeding boxes; the lower opening of the material weighing device is respectively superposed with the opening at the bottom of the material supply box.
According to the die cavity material distributing device, a vibrating device is preferably arranged between the two material weighing devices; the vibrating device is connected with the top of the feed tank.
According to the die cavity material distribution device, preferably, the linkage equipment comprises a linkage rod and a motor, one end of the linkage rod is connected with one side of the feeding box, the other end of the linkage rod is connected with the motor, and the motor is used for enabling the linkage rod to move in a reciprocating mode.
The cavity distribution device according to the present invention preferably further comprises a rail located between the mold and the supply box, the supply box being arranged to move on the rail.
The die cavity material distribution device according to the present invention preferably further comprises a bottom plate pad, wherein the bottom plate pad is arranged at the bottom of the supply box, and the bottom plate pad is located between the supply box and the rail.
The die cavity distributing device preferably further comprises a charging bucket and a charging pipe, wherein one end of the charging pipe is connected with the charging bucket, and the other end of the charging pipe is provided with an opening capable of penetrating through the top of the charging bucket; the charging bucket is arranged to supply rare earth alloy powder to the weighing device through the charging pipe so as to supply the rare earth alloy powder to the die cavity.
The die cavity material distribution device is simple in structure and convenient to operate, and can improve production efficiency. In addition, the problem of uneven distribution of the rare earth alloy powder in the forming process can be solved.
Drawings
FIG. 1 is a schematic cross-sectional view of a mold cavity distribution apparatus of the present invention taken along plane A.
Fig. 2 is a schematic diagram of the operation of a mold cavity distributing device of the present invention.
The reference numerals are explained below:
10-mould, 11-mould cavity, 100-feeding box, 200-weighing device, 300-vibrating device, 400-linkage device, 410-linkage rod, 500-track and 600-bottom plate cushion.
Detailed Description
The utility model will be further described with reference to the following figures and specific examples, but the scope of the utility model is not limited thereto.
The device is a product, namely a collection of devices.
The die cavity material distribution device of the utility model adds the rare earth alloy powder into the die cavity of the die. The die cavity distributing device comprises a feeding box, a material weighing device, a vibrating device, a linkage device, a rail, a charging bucket (not shown) and a feeding pipe (not shown). Optionally, a floor mat is also included. As described in detail below.
In the utility model, the mold is provided with at least two mold cavities, and the axial center lines of the at least two mold cavities are positioned on the same plane A. According to one embodiment of the utility model, the mold has two mold cavities. Namely, the mold in the utility model belongs to a plurality of cavities. This is advantageous in improving the production efficiency.
The feed tank sets up in the top of mould, and the bottom and the top of feed tank are provided with the opening respectively. According to one embodiment of the utility model, the top and the bottom of the supply tank are provided with at least two openings, respectively. According to one embodiment of the utility model, the top and the bottom of the supply tank are provided with two openings, respectively. So on the one hand be favorable to making through feed tank and aggregate unit the title material equipment remove, on the other hand, can be favorable to adding the tombarthite alloy powder to the die cavity in.
The material weighing equipment is arranged in the material supply box. The weighing device weighs the rare earth alloy powder and supplies the rare earth alloy powder into the die cavity. This facilitates movement through the supply tank to effect movement of the weighing apparatus.
In the utility model, the material weighing equipment is a hollow structure with an upper opening and a lower opening, and the diameter of the lower opening is smaller than or equal to that of the upper opening. The material weighing equipment further comprises a weight sensor, and the weight sensor is arranged in the hollow structure and is close to the lower opening. Therefore, on one hand, the rare earth alloy powder can be weighed, and on the other hand, the rare earth alloy powder can be conveniently added into the die cavity.
In the utility model, the material weighing devices are arranged into at least two. The number of the material weighing devices can be consistent with the number of the die cavities.
In certain embodiments, the hollow structure is comprised of an upper portion having a cylindrical tubular structure and a lower portion having an inverted conical tubular structure. This facilitates the introduction of the powder into the mould cavity.
In certain embodiments, the upper openings of the weighing devices coincide with the openings in the top of the supply tanks, respectively. The lower opening of the material weighing device is respectively superposed with the opening at the bottom of the material supply box. Thus being beneficial to fixing the material weighing equipment and being convenient for feeding.
The vibrating device is arranged close to the material weighing device. The vibration equipment makes the rare earth alloy powder in the material weighing equipment fall into the corresponding die cavity through vibration. In certain embodiments, a vibration device is disposed between the two weighing devices. The vibrating device is connected with the top of the feed tank. In the utility model, the vibrating equipment is started while the material distribution is started, and in the material distribution process, the material weighing equipment is knocked through the left-right swinging of the vibrating equipment, so that the powder in the material weighing equipment is completely filled into the die cavity. This is advantageous to ensure that the mould cavity is completely filled with the weighed powder.
The linkage device is connected to one side of the supply tank and is located outside the supply tank. The linkage enables the supply tank to move reciprocally in the direction of the plane a. This can cause the feed tank to move left and right.
The linkage device comprises a linkage rod and a motor. One end of the linkage rod is connected with one side of the feeding box, and the other end of the linkage rod is connected with the motor. The motor enables the linkage rod to move in a reciprocating manner.
The track sets up between mould and feed tank. The supply tank is arranged to move on a track. This facilitates the reciprocating movement of the supply tank.
The charging bucket provides rare earth alloy powder. One end of the feed pipe is connected with the charging bucket, and the other end of the feed pipe is provided with an opening which can penetrate through the top of the feed box. The charging bucket is arranged to supply rare earth alloy powder to the weighing device through the charging pipe so as to supply the rare earth alloy powder to the die cavity.
In a preferred embodiment, a floor mat is also included. The bottom plate pad sets up in the bottom of feed case, and the bottom plate pad is located between feed case and the track. The bottom plate pad can be a felt with the thickness of 1-3 mm. The bottom of the feeding box and the rail are both made of metal, the feeding box is required to move left and right on the rail during material distribution, no felt is used as a bottom plate pad to cause abrasion, and the situation of unstable material distribution occurs. The felt plays and prevents feed tank and track wearing and tearing, increases the stability of cloth process.
The following describes the method of using the above mold cavity distribution device, taking two cavities of one mold as an example:
the powder in the material tank is fed into two material weighing devices in the material feeding box through the feeding pipe, and in order to ensure that the weight of the rare earth alloy powder added into the two die cavities is uniform, the weight of the rare earth alloy powder of the two material weighing devices is ensured to be consistent. Then the linkage rod outside the feeding box drives the feeding box to move left and right on the track above the die cavity, and rare earth alloy powder in the material weighing device is filled into the die cavity below the feeding box. Because rare earth alloy powder mobility is relatively poor, when the feed tank begins to move, then start vibrating equipment, will weigh the inside residual powder of material equipment and fill to the die cavity of below through the vibration. And after the filling is finished, the feeding box returns to the initial blanking position through the linkage rod to finish one-time material distribution operation. Thereafter, the above-described cloth work is sequentially circulated.
Example 1
FIG. 1 is a schematic cross-sectional view of a mold cavity distribution apparatus of the present invention taken along plane A. Fig. 2 is a schematic diagram of the operation of a mold cavity distributing device of the present invention.
As shown in fig. 1 and 2, the cavity distributing apparatus of the present embodiment adds the rare earth alloy powder to the cavity 11 of the mold 10. The die cavity material distribution device comprises a material supply box 100, a material weighing device 200, a vibration device 300, a linkage device 400, a rail 500, a material tank (not shown) and a feeding pipe (not shown).
In the present embodiment, the mold 10 has two cavities 11. And the axial centerlines of at least two of the mold cavities 11 lie in the same plane a.
The feed tank 100 is disposed above the mold 10, and the bottom of the feed tank 100 is provided with two openings. The top of the feed tank 100 is provided with two openings.
A weighing apparatus 200 is provided in the supply bin 100, and the weighing apparatus 200 weighs the rare earth alloy powder and supplies the rare earth alloy powder into the die cavity 11. The material weighing device 200 is a hollow structure with an upper opening and a lower opening, and the diameter of the lower opening is smaller than or equal to that of the upper opening. The hollow structure is composed of an upper part and a lower part, wherein the upper part is in a cylindrical tubular structure, and the lower part is in an inverted conical tubular structure. The weighing apparatus 200 further comprises a weight sensor disposed inside the hollow structure and near the lower opening. In the present embodiment, the weighing apparatus 200 is provided in two.
The upper openings of the weighing devices 200 coincide with the openings of the tops of the supply boxes 100, respectively. The lower openings of the weighing devices 200 coincide with the openings of the bottoms of the supply tanks 100, respectively.
The vibrating device 300 is arranged close to the weighing device 200, and the rare earth aggregate powder in the weighing device 200 falls into the corresponding die cavity through vibration. A vibration device 300 is arranged between the two material weighing devices 200. The vibratory apparatus 300 is connected to the top of the supply tank 100. In the present embodiment, the vibration device 300 may be a small-sized vibration motor.
The track 500 is located between the mould 10 and the supply box 100, the supply box 100 being arranged to move on the track 500.
One end of the feed pipe is connected with the charging bucket, and the other end of the feed pipe is provided with an opening capable of penetrating through the top of the feed box 100. The bucket is configured to supply the rare earth alloy powder into the weighing apparatus 200 through the charging pipe, thereby supplying the rare earth alloy powder into the cavity 11.
As shown in fig. 2, the powder in the material tank is fed through the feeding tube to two weighing devices 200 in the feeding box 100, and in order to ensure uniform weight of the powder fed to the die cavity 11, the weight of the powder in the two weighing devices 200 is consistent. Then, the linkage rod 410 outside the feeding box 100 drives the feeding box 100 to move left and right on the rail 500 above the die cavity 11, and the powder in the weighing device is filled into the die cavity 11 below. Since the rare earth alloy powder has poor flowability, the vibrating apparatus 300 is started to fill the residual powder inside the weighing apparatus 200 into the lower cavity 11 by vibration while the feed tank 100 starts moving. When the filling is completed, the supply box 100 returns to the initial discharging position by the linkage 410, and a material distributing operation is completed. Thereafter, the above-described cloth work is sequentially circulated.
Example 2
The same as in example 1 except for the following settings:
as shown in fig. 2, a base pad 600 is also included. The floor mat 600 is disposed at the bottom of the supply tank 100 between the supply tank 100 and the rail 500. The floor mat 600 may be a thick felt that may reduce wear between the supply tank 100 and the rail 500, facilitating movement of the supply tank on the rail.
The present invention is not limited to the above-described embodiments, and any variations, modifications, and substitutions which may occur to those skilled in the art may be made without departing from the spirit of the utility model.
Claims (10)
1. A die cavity distributing device is used for adding rare earth alloy powder into a die cavity of a die and is characterized by comprising a feeding box, a material weighing device, a vibrating device and a linkage device; wherein the content of the first and second substances,
the mold is provided with at least two mold cavities, and the axial center lines of the at least two mold cavities are positioned on the same plane A;
the feeding box is arranged above the die, and an opening is formed in the bottom of the feeding box;
the material weighing device is arranged in the material supply box and used for weighing the rare earth alloy powder and supplying the rare earth alloy powder into the die cavity;
the vibrating equipment is arranged close to the material weighing equipment and is used for enabling the rare earth alloy powder in the material weighing equipment to fall into the corresponding die cavity through vibration;
the linkage is connected to one side of the supply tank and located outside the supply tank, and the linkage is configured to enable the supply tank to reciprocate in the direction of the plane a.
2. The apparatus of claim 1, wherein:
the material weighing equipment is of a hollow structure with an upper opening and a lower opening, and the diameter of the lower opening is smaller than or equal to that of the upper opening; the material weighing equipment further comprises a weight sensor, and the weight sensor is arranged in the hollow structure and is close to the lower opening;
the material weighing equipment is at least two.
3. The apparatus of claim 2, wherein the hollow structure is comprised of an upper portion having a cylindrical tubular structure and a lower portion having an inverted conical tubular structure.
4. The apparatus according to claim 3, characterized in that the top and the bottom of the supply tank are provided with at least two openings, respectively.
5. The apparatus according to claim 4, characterized in that the upper openings of the weighing devices coincide with the openings of the tops of the supply boxes, respectively; the lower opening of the material weighing device is respectively superposed with the opening at the bottom of the material supply box.
6. The apparatus according to claim 2, characterized in that a vibration device is arranged between the two weighing devices; the vibrating device is connected with the top of the feed tank.
7. The device as claimed in claim 6, wherein the linkage device comprises a linkage rod and a motor, one end of the linkage rod is connected with one side of the supply box, the other end of the linkage rod is connected with the motor, and the motor is used for enabling the linkage rod to move in a reciprocating mode.
8. An apparatus according to any one of claims 1 to 7, further comprising a rail located between the mould and the supply box, the supply box being arranged to move on the rail.
9. The apparatus of claim 8, further comprising a floor mat disposed at a bottom of the supply tank, the floor mat being positioned between the supply tank and the rail.
10. The apparatus of claim 4, further comprising a charging bucket and a charging pipe, wherein one end of the charging pipe is connected with the charging bucket, and the other end of the charging pipe is provided with an opening capable of passing through the top of the charging box; the charging bucket is arranged to supply rare earth alloy powder to the weighing device through the charging pipe so as to supply the rare earth alloy powder to the die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121675467.8U CN215468082U (en) | 2021-07-22 | 2021-07-22 | Die cavity distributing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121675467.8U CN215468082U (en) | 2021-07-22 | 2021-07-22 | Die cavity distributing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215468082U true CN215468082U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121675467.8U Active CN215468082U (en) | 2021-07-22 | 2021-07-22 | Die cavity distributing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215468082U (en) |
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2021
- 2021-07-22 CN CN202121675467.8U patent/CN215468082U/en active Active
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