Powder mixing device

Abstract

The utility model discloses a powder mixing device, and belongs to the technical field of powder mixing. The powder mixing device mainly comprises a mixing tank, wherein the mixing tank is provided with stirring blades for mixing powder and a cover plate for sealing the mixing tank; the feeding assembly is mounted on the cover plate, and the feeding assembly is provided with a feeding hopper for guiding powder to the mixing tank and a filter screen for filtering the powder; the auxiliary assembly is installed on the cover plate, the auxiliary assembly is provided with a scraping and brushing plate used for scraping and brushing powder to prevent accumulation, and the scraping and brushing plate is provided with a plurality of sets of notch grooves. According to the powder mixing device, powder and impurities accumulated on the filter screen can be cleaned in time through the linear reciprocating scraping and brushing action of the scraping and brushing plate, and the filter screen is effectively prevented from being blocked. And for medicine powder which is poor in fluidity and prone to agglomeration, continuous scraping and brushing of the scraping and brushing plate provides extra power for the medicine powder, powder dispersion is promoted, and the powder can smoothly pass through the filter screen.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder mixing, in particular to a powder mixing device. BACKGROUND

[0002] In the modern watch industry, tungsten alloy is widely used in the production of watch bands due to its high hardness, strong wear resistance, good corrosion resistance, and unique texture. Tungsten alloy watch bands not only improve the overall quality and aesthetics of watches, but also enhance the durability of the watch band, meeting the needs of consumers for high-end and delicate watch accessories. In the production process of tungsten alloy watch bands, powder mixing is a key step.

[0003] For example, the patent with publication number CN217909888U discloses a medicine powder mixing device, which includes a mixing tank, a screening mechanism, a support seat, an inlet, a fixed seat, a stirring shaft, and a filter plate. The medicine powder is poured into the inlet, and the filter plate is used to screen the medicine powder, so that the medicine powder enters the inside of the mixing tank, and the particles are separated on the upper surface of the filter plate, resulting in good mixing effect of the medicine powder.

[0004] In the above-mentioned powder mixing device patent, the screening process only relies on the gravity and inertia of the powder itself, and the filter plate is used to realize the screening operation. This single power source has obvious limitations. For those medicines with poor flowability and easy to agglomerate, the process of passing through the screen hole is hindered, and it is difficult to complete the screening quickly. For example, for medicine powders with high viscosity, they are prone to accumulate on the filter plate during actual screening. Due to the lack of sufficient power to disperse them, these powders cannot pass through the screen hole smoothly, which slows down the screening process and affects the overall mixing efficiency. Therefore, it is necessary to provide a powder mixing device to solve the above-mentioned problems.

[0005] It should be noted that the above information disclosed in this background section is only used to understand the background technology of the present application, and therefore, it can contain information that does not constitute prior art. SUMMARY

[0006] Based on the above-mentioned problems in the prior art, the present application solves the problem of providing a powder mixing device to solve the problem that in the above-mentioned powder mixing device patent, the screening process only relies on the gravity and inertia of the powder itself, and the filter plate is used to realize the screening operation. This single power source has obvious limitations. For those medicines with poor flowability and easy to agglomerate, the process of passing through the screen hole is hindered, and it is difficult to complete the screening quickly.

[0007] The technical scheme adopted by the application to solve the technical problems is: a powder mixing device, comprising a mixing tank having stirring blades for mixing powder, and a cover plate for sealing the mixing tank; a feeding assembly installed on the cover plate, the feeding assembly having a feeding hopper for guiding powder into the mixing tank, and a filter screen for filtering the powder; an auxiliary assembly installed on the cover plate, the auxiliary assembly having a scraping plate for scraping and preventing accumulation of the powder, and a plurality of gap grooves provided on the scraping plate.

[0008] Further, the filter screen is fixedly installed with a pull rod.

[0009] Further, a plurality of fixing seats are installed on the outer wall of the mixing tank, a clamping rod is hingedly connected to the fixing seat, an opening groove with a diameter matching that of the clamping rod is formed in the outer circle of the cover plate, and a fastener is threadedly connected to one end of the clamping rod.

[0010] Further, a side opening groove is formed in the side of the feeding hopper, and the filter screen is movably inserted into the side opening groove.

[0011] Further, the auxiliary assembly comprises a second motor installed on the cover plate, a rotating disc is installed at the output end of the second motor, an installation plate is installed on the cover plate, the installation plate has two limiting sleeves with a certain distance therebetween, a moving rod is slidably connected between the two limiting sleeves, the moving rod has a vertically arranged rotating member at the central position, the rotating member has a through groove, and a rotating part with a width matching that of the through groove is installed at the position close to the outer circle of the rotating disc.

[0012] Further, a connecting rod is installed on the rotating member, and the scraping plate is installed in the connecting rod, and the scraping plate is located at the position close to the center in the feeding hopper.

[0013] The powder mixing device provided by the application can timely clean the accumulated powder and impurities on the filter screen through the linear reciprocating scraping action of the scraping plate, effectively preventing the filter screen from being blocked. For the drug powder with poor flowability and easy to agglomerate, the continuous scraping of the scraping plate provides additional power for the powder, promotes the dispersion of the powder, and enables the powder to smoothly pass through the filter screen.

[0014] In addition to the above-described purposes, features and advantages, the application has other purposes, features and advantages. The application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings accompanying the specification of the application form a part of the specification and serve to further illustrate the application, its exemplary embodiments and its description, and do not constitute an improper limitation of the application.

[0016] In the drawings:

[0017] Figure 1 It is the overall schematic diagram of the powder mixing device in the application;

[0018] Figure 2 It is the schematic diagram of the explosion structure of Figure 1 ;

[0019] Figure 3 It is the schematic diagram of the local structure of Figure 2 ;

[0020] Figure 4 It is the enlarged view of the A area structure in Figure 3 ;

[0021] In the drawings, various reference signs:

[0022] 1, mixing assembly; 11, mixing tank; 12, support seat; 13, first motor; 14, stirring shaft; 15, stirring blade; 16, cover plate; 17, fixing seat; 18, clamping rod; 19, fastener; 2, feeding assembly; 21, feeding hopper; 22, filter screen; 23, pull rod; 3, auxiliary assembly; 31, second motor; 32, rotating disc; 33, mounting plate; 34, limiting sleeve; 35, moving rod; 36, rotating piece; 37, connecting rod; 38, scraping plate. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0025] As shown in Figures 1-4 , the present application provides a powder mixing device, which comprises a mixing assembly 1, the mixing assembly 1 has a mixing tank 11, and a support seat 12 is fixedly installed at the bottom of the mixing tank 11, the support seat 12 is used for assisting the support of the mixing tank 11, and a first motor 13 is fixedly installed at the bottom of the mixing tank 11, the output end of the first motor 13 penetrates the mixing tank 11, and a stirring shaft 14 is fixedly installed at the output end of the first motor 13, and a stirring blade 15 is fixedly installed on the stirring shaft 14, the stirring blade 15 is adapted to rotate with the output end of the first motor 13;

[0026] When the first motor 13 is powered on, the output end of the first motor 13 starts to rotate, and the stirring shaft 14 rotates synchronously with the output end of the first motor 13. The rotation of the stirring shaft 14 drives the stirring blade 15 to rotate in the mixing tank 11. Through the rotation of the stirring blade 15, mechanical force is applied to the powder material in the mixing tank 11, so that the powder material continuously moves, turns over and mixes in the mixing tank 11, thereby realizing uniform mixing between different powder materials;

[0027] The top end of the mixing tank 11 is covered with a cover plate 16, and a plurality of fixed seats 17 are fixedly installed on the outer wall of the mixing tank 11. The fixed seat 17 is "concave", and a clamping rod 18 is hinged on the fixed seat 17. An open slot (not shown in the figure) with a diameter matching that of the clamping rod 18 is formed in the outer circle of the cover plate 16. A fastener 19 is threadedly connected to one end of the clamping rod 18. When the clamping rod 18 is clamped in the open slot, the fastener 19 is tightened and attached to the surface of the cover plate 16 to fix the cover plate 16 on the mixing tank 11.

[0028] When the equipment needs to be maintained, cleaned inside or have materials added, the operator can easily loosen the fastener 19, and the clamping rod 18 is turned out of the open slot, so that the cover plate 16 is quickly opened, greatly improving the convenience of equipment maintenance. When the equipment is running normally, the clamping rod 18 is clamped in the open slot and tightened by the fastener 19, so that the cover plate 16 is tightly attached to the mixing tank 11, ensuring good sealing performance.

[0029] In order to filter the powder put into the mixing tank 11, as shown in Figs. Figure 1 and Figures 3-4 An inlet assembly 2 is installed in communication with the cover plate 16. The inlet assembly 2 includes an inlet hopper 21 installed in communication with the cover plate 16, and a side opening slot (not shown in the figure) is formed in the side of the inlet hopper 21. A filter screen 22 is movably inserted into the side opening slot. The filter screen 22 is used for filtering powder and is fixedly connected to the inlet hopper 21 by bolts. A pull rod 23 is fixedly installed on the filter screen 22. The pull rod 23 is suitable for pulling the filter screen 22 out of the inlet hopper 21.

[0030] When it is necessary to put powder into the mixing tank 11, the powder is poured into the inlet hopper 21 of the inlet assembly 2. The inlet hopper 21 is in communication with the cover plate 16, and the powder flows into the mixing tank 11 along the inlet hopper 21 under the action of gravity. The fine powder meeting the filtering requirements can smoothly pass through the mesh holes of the filter screen 22 and continue to fall into the mixing tank 11. The impurities, agglomerated powder or particles not meeting the particle size requirements are intercepted above the filter screen 22.

[0031] And the cover plate 16 is installed with an auxiliary assembly 3, which can improve the filtering efficiency of the powder, the auxiliary assembly 3 comprises a second motor 31 fixedly installed on the cover plate 16, a rotating disc 32 is fixedly installed at the output end of the second motor 31, and an installation plate 33 is fixedly installed on the cover plate 16 and located at the front side of the rotating disc 32, the installation plate 33 has two sets of limiting sleeves 34 which are spaced apart, and a moving rod 35 is slidably connected between the two sets of limiting sleeves 34, the moving rod 35 has a rotating part 36 arranged vertically at the central position, the rotating part 36 has a through groove (not labeled in the figure), and a rotating part which is adapted to the width of the through groove is fixedly installed at the position close to the outer ring of the rotating disc 32, and the rotating part is embedded in the through groove of the rotating part 36;

[0032] Therefore, when the second motor 31 is powered on and starts to rotate, since the rotating disc 32 is fixedly installed at the output end of the second motor 31, the rotating disc 32 will synchronously rotate with the output end of the second motor 31, and when the rotating disc 32 rotates, the rotating part on the rotating disc 32 also rotates;

[0033] Since the rotating part is in the through groove of the rotating part 36, the circular motion of the rotating part will drive the rotating part 36 to move. Because the rotating part 36 is fixedly installed on the moving rod 35, and the moving rod 35 is limited to linear sliding between the two sets of limiting sleeves 34, the circular motion of the rotating part is converted into linear reciprocating motion of the moving rod 35 between the two sets of limiting sleeves 34;

[0034] Meanwhile, a connecting rod 37 is fixedly installed on the rotating part 36, and a scraping plate 38 is fixedly installed at one end of the connecting rod 37, the scraping plate 38 has a plurality of notched grooves, and it should be noted that in the initial state, the scraping plate 38 is located close to the central position in the hopper 21,

[0035] When the rotating part 36 moves linearly with the moving rod 35, the connecting rod 37 also moves synchronously, thereby driving the scraping plate 38 to perform linear reciprocating scraping action in the hopper 21 with the central position as the starting point. The plurality of notched grooves provided on the scraping plate 38 not only reduce the overall weight of the scraping plate 38, but also make the powder passing through the filter screen 22 more smoothly pass through the movement area of the scraping plate 38 during the scraping process, reducing the obstruction to the normal powder falling;

[0036] In summary, the auxiliary assembly 3 improves the filtering efficiency of the powder. The linear reciprocating scraping action of the scraper plate 38 can clean the accumulated powder and impurities on the filter screen 22 in time, effectively preventing the filter screen from being blocked. For the drug powder with poor flowability and easy to agglomerate, the continuous scraping of the scraper plate 38 provides additional power for the powder, promotes the dispersion of the powder, and enables the powder to pass through the filter screen 22 smoothly, solving the limitations of the traditional screening method.

[0037] By continuously cleaning the filter screen 22, the continuous and stable filtering process is ensured, and the situation of frequently pausing the feeding and cleaning the filter screen due to the filter screen being blocked is avoided, thereby improving the efficiency of the whole feeding and filtering process. At the same time, the scraper plate 38 makes the powder more evenly distributed on the filter screen 22, reduces the local accumulation phenomenon, and helps to ensure that the powder entering the mixing tank 11 is more uniform in particle size and composition, thereby providing higher quality raw materials for the subsequent mixing process and improving the quality of the final mixed product.

[0038] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A powder mixing device, characterized by: Include: Mixing tank (11), the mixing tank (11) has mixing blade (15) to mix powder, and the cover plate (16) seals the mixing tank (11); Feeding assembly (2), the feeding assembly (2) is installed on the cover plate (16), the feeding assembly (2) has a feeding hopper (21) for guiding powder to the mixing tank (11), and a filter screen (22) for filtering powder; Auxiliary assembly (3), the auxiliary assembly (3) is installed on the cover plate (16), the auxiliary assembly (3) has a scraping plate (38) for preventing powder accumulation, and a plurality of gap grooves are arranged on the scraping plate (38).

2. The powder compounding device of claim 1, wherein: The filter screen (22) is fixedly installed with a pull rod (23).

3. The powder compounding device of claim 1, wherein: A plurality of fixing seats (17) are installed on the outer wall of the mixing tank (11), the fixing seat (17) is hinged with a clamping rod (18), an opening groove with a diameter matched with the clamping rod (18) is formed in the outer circle of the cover plate (16), and one end of the clamping rod (18) is threadedly connected with a fastener (19).

4. The powder compounding device of claim 1, wherein: The side of the feeding hopper (21) is provided with a side opening groove, and the filter screen (22) is movably inserted into the side opening groove.

5. The powder compounding device of claim 4, wherein: The auxiliary assembly (3) includes a second motor (31) installed on the cover plate (16), the output end of the second motor (31) is provided with a rotating disc (32), the cover plate (16) is provided with a mounting plate (33), the mounting plate (33) has two sets of limiting sleeves (34), the two sets of limiting sleeves (34) have a certain distance, the two sets of limiting sleeves (34) are slidably connected with a moving rod (35), the moving rod (35) has a vertically arranged rotating part (36) at the central position, the rotating part (36) has a through groove, and the rotating disc (32) is provided with a rotating part matched with the width of the through groove near the outer circle.

6. The powder compounding device of claim 5, wherein: The rotating part (36) is provided with a connecting rod (37), the scraping plate (38) is installed in the connecting rod (37), and the scraping plate (38) is located near the central position in the feeding hopper (21).

Images