CN218458340U - Ultrasonic vibration powder distribution device for powder compression molding process - Google Patents
Ultrasonic vibration powder distribution device for powder compression molding process Download PDFInfo
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- CN218458340U CN218458340U CN202221266887.5U CN202221266887U CN218458340U CN 218458340 U CN218458340 U CN 218458340U CN 202221266887 U CN202221266887 U CN 202221266887U CN 218458340 U CN218458340 U CN 218458340U
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Abstract
The utility model discloses a powder press forming technology ultrasonic vibration cloth powder device, the cloth powder device mainly includes: the ultrasonic vibration mould comprises a material shoe, a mould cavity, a base plate, an ultrasonic vibration system and a mechanical transmission part. The powder is placed in the material shoe, and the powder and the material shoe reciprocate on the bottom plate under the drive of the mechanical transmission system, and the powder falls into the cavity under the action of the gravity of the powder in the process that the material shoe passes through the cavity to complete filling. In the powder filling process, the ultrasonic vibration system around the cavity makes the cavity of the die vibrate at high frequency, so that the powder flowability in the cavity is improved, and the powder distribution compactness and uniformity of the powder in the cavity of the die are further optimized. The device has compact integral structure and simple process, the whole powder spreading process is finished at one go, the powder spreading quality is improved on the basis of ensuring the efficiency, and the aims of improving the quality of powder press-formed products and the like are finally fulfilled.
Description
Technical Field
The invention relates to the field of powder metallurgy and pharmacy, in particular to a powder pressing process.
Background
Powder press molding refers to a powder molding method using an applied pressure in a press mold. The process is widely applied in the field of powder metallurgy and pharmacy. The powder metallurgy is a process method for manufacturing metal materials, composite materials and various products of different types by using metal powder (or a mixture of metal powder and non-metal powder) as a raw material through forming and sintering processes. Compared with other forming technologies, powder metallurgy has the advantages of low energy consumption, low pollution, low cost, high efficiency, rapid forming and the like. Particularly, in the aspect of processing and forming complex parts, the powder metallurgy technology has outstanding advantages compared with the traditional forming processing technology. However, in the powder filling process of the complicated cutter cavity, due to poor flowability of the powder at the cavity boundary, the powder filling amount at the boundary is small, the filling is uneven, the compactness is poor, and the like, so that the mechanical properties of the produced cutter are affected. Therefore, the quality of the complex cutter is improved by optimizing the structure of the powder distributing device and the powder distributing process, and the method is an effective means for improving the competitiveness of China in the powder metallurgy industry.
In the field of pharmacy, the direct powder compression method refers to a method for directly mixing a medicine and auxiliary materials without granulation and then compressing the mixture. Because the physical and chemical properties of most medicines can not meet the requirement of direct powder compression, a novel auxiliary material with superior performance is required to be selected to improve the flowability and compressibility of the medicines. With the first appearance of spray-dried lactose and microcrystalline cellulose in 1963, the flowability of the powder is improved, and the main technical bottleneck of the direct powder tabletting process is broken through. In recent decades, the traditional excipient process has been improved, promoting the rapid development of direct powder compression. Meanwhile, the application of the direct powder tabletting technology can obviously reduce the manufacturing and production cost of the pharmaceutical industry and greatly improve the dissolution rate and the disintegration of the medicine. Also as the first step of the compaction process, the dusting process still has a direct impact on the quality of the final shaped product.
In the powder distribution process of the compression molding process, the physical parameters of the powder material, the stability of a mechanical traditional system in the powder distribution process and the efficiency of the powder distribution process are considered, and more importantly, the compactness and uniformity of the powder in the cavity of the die after the powder distribution are considered. Aiming at the problems of poor powder compactness, poor powder uniformity and the like at the boundary of a die cavity in the powder distribution process of the powder compression molding process at present, the relieving method mainly has two aspects: the powder distribution system has the advantages that firstly, the physical parameters of the powder are changed so as to improve the flowability of the powder, and secondly, the structural parameters of the powder distribution system are changed, the movement speed of a material boot in the powder distribution process is changed, and the like. The methods can optimize the filling quality of the powder in the mold cavity after powder distribution to a certain degree. However, the improvement of the uniformity, especially the compactness, of the powder at the boundary of the cavity after filling is slightly insufficient, and the implementation of the optimization modes has certain difficulty or causes the problems of the reduction of the powder distribution efficiency and the like. The utility model discloses the device adds supersound ultrasonic vibration system, exerts the vibration of equidirectional in the powder filling process in the die cavity, improves the powder and locates mobility at the die cavity border, under the condition that does not influence production efficiency, improves powder closely knit nature and homogeneity.
SUMMERY OF THE UTILITY MODEL
The utility model aims at designing an ultrasonic vibration cloth powder device for powder press forming process, will vibrate and combine together with the cloth powder process, solved the problem that exists among the above-mentioned prior art effectively, improved the quality of powder press forming process final product.
In order to realize the purpose, the utility model discloses a technical scheme be: an ultrasonic vibration powder distribution device for a powder pressing forming process comprises a bottom plate, four fixed columns, a mechanical transmission system, a powder distribution system and an ultrasonic vibration system;
the four fixing columns are connected to the lower end of the base plate of the powder pressing forming vibration powder distributing device; the mechanical transmission system comprises a movement device and two transmission rods; two ends of the movement device are respectively connected with two transmission rods; the powder distribution system comprises a material shoe filled with powder and a die cavity, the material shoe is connected with the moving device through a transmission rod, and the material shoe is driven by two transmission rods to reciprocate on the substrate; the ultrasonic vibration system is used for driving the die cavity to vibrate.
The material shoe is positioned on the upper side of the base plate and is connected with the mechanical transmission part through transmission rods on two sides, and the mechanical transmission system drives the material shoe to reciprocate on the base plate through the transmission rods so as to fill the mold cavity;
the die cavity is fixed on the substrate, and the upper surface of the die cavity is horizontal to the substrate.
In a preferred embodiment: the material boot is connected with the material pipe, a square cavity is formed inside the material boot, and powder in the storage bin is conveyed to the material boot through the material pipe.
In a preferred embodiment: the cloth mold cavity is a cylinder with a cavity.
In a preferred embodiment: the bottom plate of the powder distribution system is a metal flat plate and is used for arranging a movement device, and the bottom plate is connected with the base plate through four fixing columns.
In a preferred embodiment: the fixing column is a cylinder with a threaded hole.
In a preferred embodiment: the mechanical transmission system is positioned on the bottom plate and is connected with the material shoe through two symmetrical transmission rods.
In a preferred embodiment: the transmission rod is a flat and long cuboid metal rod.
In a preferred embodiment: the ultrasonic vibration system is positioned at the periphery of the die cavity and is tightly attached to the die cavity, the ultrasonic vibration system is composed of five vibrators, and the ultrasonic vibrators are respectively arranged at the bottom, the front, the rear, the left and the right of the die cavity.
In a preferred embodiment: the ultrasonic vibrator is capable of adjusting amplitude and frequency and generating vibration in three-dimensional directions.
In a preferred embodiment: the working amplitude of the ultrasonic vibrator is 20-40kHz, and the frequency is 1-10 μm.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
1. the utility model discloses combine traditional cloth powder mode and vibration, the translation motion that the powder was followed the material boots is filled to the mould die cavity, is located that mould die cavity outlying ultrasonic vibration system provides the ascending vibration of three-dimensional side simultaneously in order to promote powder mobility, and then improves cloth powder degree of consistency and closely knit nature.
2. The utility model discloses be removable structure with mould cavity and base plate design, be convenient for change the production demand of multiple cutter in the reply actual production, it is convenient that mould cavity changes, and effectual save time improves finished piece efficiency.
3. The ultrasonic vibration system is simple to connect with the powder distribution device, the disassembly and the replacement are simple, the whole replacement is not needed, and the economic cost is effectively reduced.
Drawings
FIG. 1 is a schematic structural view of an ultrasonic vibration powder distribution device for a powder compacting process according to the present invention;
FIG. 2 is a front view of the present invention with a partial cross-sectional view of the mold cavity;
fig. 3 is a left side view of the present invention with a partial cross-sectional view of the mold cavity.
In the figure: 1. a substrate; 2. a mold cavity; 3. a material boot; 4. a transmission rod; 5. a power plant; 6. a vibrating device; 7. a base plate; 8. or a fixed column; 9. an ultrasonic vibrator.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounting," "providing," "sleeving/connecting," "connecting," and the like are used in a broad sense, and for example, "connecting" may be wall-mounted, detachable, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected between two elements.
Referring to fig. 1 to 3, the present embodiment is an ultrasonic vibration powder distribution device for a powder press forming process, and the device includes a bottom plate 7, four fixing columns 8, mechanical transmission systems 4 and 5, a powder distribution system, and an ultrasonic vibration system. The four fixing columns 8 are connected to the lower end of a powder pressing forming vibration powder distribution device base plate 1, the mechanical transmission system comprises a power device 4 and two transmission rods 5, the two ends of each transmission rod 5 are respectively connected with the power device 4 and the material shoe 3, and the main workpiece material shoe 3 of the powder distribution system is driven by the two transmission rods 4 to reciprocate on the base plate 1. The powder distribution system comprises a material shoe 3 filled with powder and a die cavity 2, the ultrasonic vibration system comprises five vibrators 9, the five vibrators are respectively arranged at the bottom of the die cavity, and the ultrasonic vibration system can provide high-frequency vibration in different directions to improve the powder distribution quality.
In the ultrasonic vibration powder distribution device for the powder compression molding process, the ultrasonic vibration system is positioned at the periphery of the mold cavity and is tightly attached to the mold cavity, and is an ultrasonic vibrator capable of adjusting amplitude and frequency and generating vibration in a three-dimensional direction, and the ultrasonic vibrator can provide working amplitude of 20-40kHz and frequency of 1-10 microns. And vibrating the powder in the die cavity to further increase the compactness and uniformity of the powder distribution.
The transmission rod 5 is a flat long cuboid metal rod, is connected with the moving device and the material shoe, drives the material shoe to move and completes powder filling.
According to the ultrasonic vibration powder distribution device for the powder pressing forming process, the bottom plate of the powder distribution system is a metal flat plate and is used for arranging the power device, and the power device is connected with the base plate through the four fixing columns to support the powder distribution device.
According to the ultrasonic vibration powder distribution device for the powder compression molding process, the fixing column is a cylinder with a threaded hole, and the fixing column is fixed by the bolt and used for connecting the substrate and the bottom plate.
According to the ultrasonic vibration powder distribution device for the powder compression molding process, the mechanical transmission system is positioned on the bottom plate and connected with the material shoe through the two symmetrical transmission rods, and periodic horizontal movement with adjustable speed can be provided. The powder distribution process is completed by driving the material shoe through the transmission rod. The material boot is connected with the material pipe, a square cavity is formed inside the material boot, powder in the bin is conveyed to the material boot through the material pipe, and the powder distribution purpose is achieved through the reciprocating motion of the material boot.
When need use novel powder suppression forming process vibration cloth powder device, at first need with store a certain amount of powder material that is used for the cloth powder in the feed bin, before cloth powder begins, open the feed bin valve, powder material via feed bin whereabouts to material boots 3, for guaranteeing the continuous supply of follow-up cloth powder in-service powder, the feed bin valve keeps normally opening. At this time, the powder material is deposited in the shoe 3 due to the falling of the powder. At this time, the powder feeding operation is finished, and the control system controls the power device 5 of the mechanical transmission system to transmit the reciprocating motion to the material shoe 3 through the transmission rod 4. Thereby, the shoe 3 reciprocates back and forth on the substrate 1 in the direction of the mold cavity 2, and the powder material in the shoe 3 is filled in the mold cavity 2 during the movement. At the same time, the ultrasonic vibration systems 6 and 9 are also operated, and the vibrators 9 are arranged in five directions of front, back, left, right and bottom of the periphery of the cavity. The die cavity 2 is positioned in the middle of the substrate 1 and is flush with the upper surface of the substrate 1, and the substrate 1 and the bottom plate 7 are fixed by four fixing columns 8, namely the ultrasonic vibration system 6 and the die cavity 2 are not in contact with the bottom plate. In the powder distributing process, the vibrator 9 can provide high-frequency vibration in the three-dimensional direction for the die cavity 2 so as to improve the powder filling quality in the die cavity during powder distribution. After filling, the ultrasonic vibration system 6 and the vibrator 9 stop working, the material shoe 3 is driven by the transmission rod 4 to move in a translation mode to leave the die cavity 2, when the material shoe 1 retreats to the initial position, the power device also stops working, and single powder distribution is completed.
The embodiment also provides a powder distribution method of the ultrasonic vibration powder distribution device for the powder compression molding process, which comprises the following steps of:
(1) firstly, a certain amount of powder to be used is always stored in the storage bin, the powder is conveyed to the material shoe through the material pipe, and accumulation of the powder is formed in the material shoe.
(2) When the powder feeding system finishes powder feeding, the control system controls the mechanical transmission system and drives the material shoe to do translational motion on the substrate by the two transmission rods connected with the material shoe so as to finish powder distribution. The ultrasonic vibration system is also opened at the same time, so that the mould cavity is ensured to be filled and simultaneously vibrate in a three-dimensional direction;
(3) and the material shoe after powder distribution retreats to leave the die cavity, the ultrasonic vibration system stops vibrating at the same time, the mechanical transmission system stops working when the material shoe retreats to the initial position, and single powder distribution is completed.
The above, only be the preferred embodiment of the present invention, but the design concept of the present invention is not limited to this, and any skilled person familiar with the technical field is in the technical scope disclosed in the present invention, and it is right to utilize this concept to perform insubstantial changes to the present invention, all belong to the act of infringing the protection scope of the present invention.
Claims (10)
1. An ultrasonic vibration powder distribution device for a powder pressing forming process is characterized by comprising a bottom plate, four fixed columns, a mechanical transmission system, a powder distribution system and an ultrasonic vibration system;
four fixing columns are connected to the lower end of a base plate of the powder pressing forming vibration powder distributing device; the mechanical transmission system comprises a motion device and two transmission rods; two ends of the movement device are respectively connected with two transmission rods; the powder distribution system comprises a material shoe filled with powder and a die cavity, the material shoe is connected with the moving device through a transmission rod, and the material shoe is driven by two transmission rods to reciprocate on the substrate; the ultrasonic vibration system is used for driving the die cavity to vibrate;
the material shoe is positioned on the upper side of the base plate and is connected with the mechanical transmission part through transmission rods on two sides, and the mechanical transmission system drives the material shoe to reciprocate on the base plate through the transmission rods so as to fill the mold cavity;
the die cavity is fixed on the substrate, and the upper surface of the die cavity is horizontal to the substrate.
2. The ultrasonic vibration powder distribution device for the powder press forming process according to claim 1, wherein: the material boot is connected with the material pipe, a square cavity is formed inside the material boot, and powder in the storage bin is conveyed to the material boot through the material pipe.
3. The ultrasonic vibration powder distribution device for the powder press forming process according to claim 2, wherein: the die cavity is a cylinder with a cavity.
4. The ultrasonic vibration powder distribution device for the powder press forming process according to claim 1, wherein: the bottom plate of the powder distribution system is a metal flat plate and is used for arranging the movement device and is connected with the base plate through four fixing columns.
5. The ultrasonic vibration powder distribution device for the powder press forming process according to claim 4, wherein: the fixing column is a cylinder with a threaded hole.
6. The ultrasonic vibration powder distribution device for the powder press forming process according to claim 4, wherein: the mechanical transmission system is positioned on the bottom plate and is connected with the material shoe through two symmetrical transmission rods.
7. The ultrasonic vibration powder distribution device for the powder press forming process according to claim 6, wherein: the transmission rod is a flat and long cuboid metal rod.
8. The ultrasonic vibration powder distribution device for the powder press forming process according to claim 1, wherein: the ultrasonic vibration system is positioned at the periphery of the mold cavity and is tightly attached to the mold cavity, the ultrasonic vibration system consists of five vibrators, and the ultrasonic vibrators are respectively arranged at the bottom, the front, the back, the left and the right of the mold cavity.
9. The ultrasonic vibration powder distribution device for the powder press forming process according to claim 8, wherein: the ultrasonic vibrator is capable of adjusting amplitude and frequency and generating vibration in three-dimensional directions.
10. The ultrasonic vibration powder distribution device for the powder press forming process according to claim 9, wherein: the working amplitude of the ultrasonic vibrator is 20-40kHz, and the frequency is 1-10 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221266887.5U CN218458340U (en) | 2022-05-25 | 2022-05-25 | Ultrasonic vibration powder distribution device for powder compression molding process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221266887.5U CN218458340U (en) | 2022-05-25 | 2022-05-25 | Ultrasonic vibration powder distribution device for powder compression molding process |
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| CN218458340U true CN218458340U (en) | 2023-02-10 |
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| CN202221266887.5U Active CN218458340U (en) | 2022-05-25 | 2022-05-25 | Ultrasonic vibration powder distribution device for powder compression molding process |
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