Discharging device

Abstract

The utility model discloses a blanking device. The blanking device comprises n blanking pipes, the discharging pipe is provided with a discharging cavity. A distributing device is connected into the discharging cavity; n is equal to 2 to 34; the distributor comprises a distributor feeding part and a distributing part connected with an outlet of the distributor feeding part; the material distribution part comprises a first material distribution pipe body and a second material distribution pipe body which is partially arranged in the first material distribution pipe body in a sleeving manner; the outer wall of the second material distribution pipe body is connected with the inner wall of the first material distribution pipe body through a first connecting part; the plurality of blanking pipes are communicated with the plurality of conveying pipes through the first connecting and fixing disc; and the plurality of material conveying pipes are communicated with the material storage device through the second connecting and fixing disc. The powder distribution device aims at solving the problems that existing powder is not uniformly distributed in a mold and dust is raised when the powder enters the periphery of the mold, and the powder distribution device is provided with the innovative design of the first material distribution pipe body and the second material distribution pipe body, so that the problems that the powder is not uniformly distributed and the dust is raised can be solved.

Description

Technical Field

[0001] This utility model relates to the field of ball mill equipment, and in particular to a feeding device. Background Technology

[0002] An isostatic pressing (IOP) sphere press is a device used to press powdered materials into spherical shapes. It operates primarily based on the principle of isostatic pressing. In the IOP process, powder is loaded into a flexible mold, placed in a high-pressure container, and a liquid medium is used to apply uniform pressure in all directions, ensuring the powder is subjected to uniform compressive force in all directions. This effectively avoids the density unevenness problem caused by traditional unidirectional pressing. Its advantages include producing spheres with high density, good strength, and regular shape. These spheres, after subsequent sintering and other processes, can be used to manufacture spheres made of various materials such as ceramics and metals, playing a role in numerous fields such as materials processing and machinery manufacturing.

[0003] In traditional isostatic briquetting machines, a large number of briquette blanks are pressed at once, resulting in simultaneous multi-pipe feeding. The powder feeding from the feeding pipe into the mold is unstable, leading to uneven powder distribution within the mold. Simultaneously, the powder generates a strong impact force as it falls under gravity, causing indentations as it falls from a height. Furthermore, some areas within the mold may have less powder or be sunken, resulting in an uneven internal structure of the pressed briquette and subsequent cracking of the cap. The impact force also generates significant dust as the powder exits from the feeding pipe outlet.

[0004] Therefore, in isostatic briquetting machines, how to solve the problems of uniform powder feeding, uneven powder distribution in the mold, and dust generation around the mold after powder enters have become urgent problems to be solved in this field. Utility Model Content

[0005] This utility model aims to provide a feeding device with an innovative design of a first and a second feeding tube, which can solve the problems of uneven powder distribution in the mold and dust generation around the mold after powder enters. To achieve the above objectives, the specific technical solution of this utility model's feeding device is as follows:

[0006] A feeding device includes n feeding pipes; each feeding pipe is provided with a feeding chamber; a material distributor is connected to the feeding chamber; wherein n = 2-34;

[0007] The fabric feeder includes a fabric feed section and a fabric section connected to the outlet of the feed section.

[0008] The fabric section includes a first fabric tube and a second fabric tube partially sleeved inside the first fabric tube.

[0009] The outer wall of the second fabric tube is connected to the inner wall of the first fabric tube via the first connecting part;

[0010] The plurality of feeding pipes are connected to the plurality of conveying pipes through the first connecting and fixing plate;

[0011] The plurality of conveying pipes are connected to the storage device via a second connecting and fixing plate.

[0012] Compared with the prior art, the beneficial effects of this invention are as follows: the powder flow rate in the space between the inner wall of the first distribution tube and the outer wall of the second distribution tube is greater than the powder flow rate inside the second distribution tube; thus, the powder located between the first and second distribution tubes passes through the distribution tube and fills the spherical blank cavity from the edge to the center, with the edge area filled first, and the unfilled center area filled by the powder with a small flow rate in the second distribution tube; at the same time, because the powder flow rate in the first distribution tube is small, it helps to avoid the problem of powder accumulation in the center causing depressions; and the powder fills from the edge to the center of the spherical blank cavity, achieving edge filling first, avoids the problem of powder overflowing from the center but not filling the edge of the spherical blank cavity when the powder still needs to fill the edge in the near end stage of the feeding process. This helps to avoid the problem of uneven distribution of powder in the spherical blank cavity.

[0013] Meanwhile, a feeder is connected inside the feeding chamber. The feeder includes a feeder inlet and a feeding section connected to the feeder inlet outlet. This allows a small amount of air to be supplied to the feeding pipe from the small outlet through the space between the inner wall of the feeding pipe and the feeder. This helps to prevent air blockage between the first and second feeding pipes due to the large feeding flow rate, thus avoiding uneven powder feeding or inconsistent flow rates between the two pipes. It also further improves the powder feeding rate between the first and second feeding pipes, indirectly increasing the flow rate. Furthermore, it helps to allow fine powder in the space between the feeding pipe outlet and the ball blank mold cavity inlet to enter the feeding pipe with the air, preventing excessive dust overflow.

[0014] While simultaneous feeding from multiple conveying pipes improves work efficiency, the inclined design of these pipes makes it difficult to replenish air during the feeding process, resulting in uneven powder flow. The above solution addresses the issue of unstable powder flow between the first and second feeding pipes.

[0015] Furthermore, the second fabric tube body includes a second fabric tube A section, a second fabric tube B section, and a second fabric tube C section that connects the second fabric tube A section and the second fabric tube B section;

[0016] The second fabric tube A section is provided with a first inverted conical inner cavity;

[0017] The second fabric tube B section is provided with a first cylindrical inner cavity;

[0018] The second fabric tube C section is provided with a second inverted conical inner cavity;

[0019] The second fabric tube C is located outside the second cylinder.

[0020] The beneficial effects of adopting the above-mentioned further technical solution are as follows: The second distribution pipe A section is provided with a first inverted conical inner cavity, which realizes the accumulation of powder in the second distribution pipe A section, which helps to avoid the phenomenon of unstable flow rate of powder when it is discharged from the second distribution pipe; the second distribution pipe C section is provided with a second inverted conical inner cavity to narrow the discharge port of the second distribution pipe, which helps to control the ratio between the discharge flow rate of powder in the space between the inner wall of the first distribution pipe and the outer wall of the second distribution pipe and the discharge flow rate of powder in the second distribution pipe.

[0021] Furthermore, the first fabric tube body is provided with a second cylindrical inner cavity; the second fabric tube body portion is located inside the second cylinder;

[0022] A first gap is provided between the outer wall of the second fabric tube and the interior of the first fabric tube;

[0023] The width of the first gap is 7-9 mm.

[0024] The beneficial effects of adopting the above-mentioned further technical solution are as follows: A first gap is provided between the outer wall of the second distribution tube and the interior of the first distribution tube, and the width of the first gap is 7-9mm. This allows for a large flow rate of powder passing through the space between the outer wall of the second distribution tube and the interior of the first distribution tube, while also helping to avoid air blockage during material feeding. Furthermore, it helps to ensure that the flow rate of powder in the space between the inner wall of the first distribution tube and the outer wall of the second distribution tube is more than 20 times that of the flow rate of powder in the second distribution tube.

[0025] A first gap is provided between the outer wall of the first fabric tube and the inner wall of the feed tube.

[0026] The first gap width is 7-9mm, which is beneficial for replenishing air in the feed pipe during the feeding process, especially for replenishing air at the inlet position between the first and second feed pipes, thereby helping to stabilize the powder feeding flow between the first and second feed pipes.

[0027] Furthermore, the inlet of the second fabric tube and the inlet of the first fabric tube are provided with a height difference of 10-14mm.

[0028] The further beneficial effect of adopting the above is that, by setting a height difference between the inlet of the second feeding tube and the inlet of the first feeding tube, it is beneficial to avoid the problem of uneven feed flow of powder entering between the first feeding tube and the second feeding tube after the powder enters the discharge port.

[0029] Furthermore, the material distributor is connected to the first connecting fixing plate via a second connecting part; the second connecting part includes three second connecting rods; one end of the second connecting rod near the material inlet of the feed pipe is connected to the first connecting fixing plate, and the other end of the second connecting rod away from the material inlet of the feed pipe is connected to the material distributor; preferably, the angle between the second connecting rod and the axis of the material distributor is 15°-45°.

[0030] The further beneficial effects of adopting the above are that it can fix the position of the feeder in the feed pipe, and at the same time, it can help avoid the problem of excessive accumulation of powder in the second connection part of the powder during the feeding process, and help avoid the problem of unstable feeding flow.

[0031] Furthermore, the outer wall of the second fabric tube is connected to the inner wall of the first fabric tube via the first connecting portion;

[0032] The first connecting part includes three first connecting rods; the first fabric tube body is connected to the feed tube through the first connecting rods; preferably, the angle between the first connecting rod and the axis of the fabric feeder is 15°-45°.

[0033] The further beneficial effects of adopting the above are that it realizes the connection between the second feeding tube and the first feeding tube, and at the same time helps to avoid the problem of excessive accumulation of powder in the feeding part caused by the first connecting part blocking the powder during feeding, and helps to avoid the problem of unstable feeding flow.

[0034] Furthermore, the first connecting fixing plate is provided with a plurality of first connecting ports, and the feeding pipe is connected to the conveying pipe through the first connecting ports;

[0035] The feeding pipe is detachably connected to the first connecting and fixing plate;

[0036] The feeding pipe is perpendicular to the first connecting and fixing plate.

[0037] Furthermore, the diameter of the discharge port of the discharge pipe is smaller than the diameter of the inlet port of the discharge pipe; the diameter of the inlet port of the discharge pipe is larger than the diameter of the inlet port of the second distribution pipe.

[0038] Furthermore, the second connecting and fixing plate is provided with several second connecting ports; the material conveying pipe is connected to the material storage device through the second connecting ports;

[0039] The end of the conveying pipe near the discharge pipe is detachably connected to the first connecting and fixing plate;

[0040] The material conveying pipe is inclined to the first connecting fixing plate and the second connecting fixing plate.

[0041] Furthermore, a ball blank mold cavity is provided below the feeding pipe; the inner diameter of the first feeding pipe is 44-48mm, the inlet diameter of the second feeding pipe A section is 28-32mm, the outlet diameter of the second feeding pipe A section is 22-26mm, the inner diameter of the second feeding pipe B section is 22-26mm, the inlet diameter of the second feeding pipe C section is 22-26mm, and the outlet diameter of the second feeding pipe C section is 5-9mm.

[0042] The further beneficial effect of adopting the above is that the discharge flow rate of powder in the space between the inner wall of the first distribution tube and the outer wall of the second distribution tube is more than 20 times that of powder in the second distribution tube. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the isostatic briquetting machine of this utility model;

[0044] Figure 2 This is a schematic diagram of the fabric feeder of this utility model;

[0045] Figure 3 This is a top view of the fabric feeder of this utility model;

[0046] Figure 4 This is a schematic diagram of the second fabric tube of this utility model;

[0047] Figure 5 This is a schematic diagram of the connecting and fixing plate of this utility model;

[0048] Figure 6 This is a top view of the ball blank mold cavity of this utility model;

[0049] 1. Material storage device; 2. Material conveying pipe; 3. Material distributor; 4. Material discharge pipe; 5. Ball blank mold cavity; 6. First material distribution pipe body; 7. Second material distribution pipe body; 9. First connecting part; 10. Second connecting part; 11. First connecting fixing plate; 12. Second connecting fixing plate; 71. Second material distribution pipe A part; 72. Second material distribution pipe B part; 73. Second material distribution pipe C part; 301. Feeding part; 302. Material distribution part; 901. First connecting rod; 1001. Second connecting rod; 1101. First connecting port; 1201. Second connecting port. Detailed Implementation

[0050] To better understand the purpose, structure, and function of this invention, a feeding device of this utility model will be described in further detail below with reference to the accompanying drawings and embodiments.

[0051] Example 1

[0052] This embodiment provides a feeding device, wherein the feeding pipe is provided with a feeding chamber;

[0053] like Figure 1-6 As shown, the material distributor 3 of this utility model is installed in the isostatic briquetting machine. A storage device 1 and a conveying pipe 2 are installed above the feeding pipe 4, and a spherical blank cavity 5 is provided below the feeding pipe 4. The powder is stored in the storage device 1. When the outlet of the storage device 1 is opened, the powder is transferred to the feeding pipe 4 through the conveying pipe 2. The powder passes through the material distributor 3 in the feeding pipe 4. The powder is transferred in the material distributor 3 in a layered feeding manner. When the powder reaches the material distributor 3, the powder located between the first feeding pipe body 6 and the second feeding pipe body 7 passes through the feeding pipe 4 and fills the spherical blank cavity 5 from the edge of the sphere towards the center. The edge part is filled first. The powder that is not filled in the center is supplemented to the center part of the spherical blank cavity 5 by the powder falling later from the second feeding pipe body 7 through the feeding pipe 4, filling the center part, that is, filling the top part.

[0054] This utility model discloses a feeding device comprising n feeding pipes 4, wherein n = 2-34; each feeding pipe 4 has a feeding cavity; a feeder 3 is connected inside the feeding cavity; the feeder 3 includes a feeder 3 inlet 301 and a feeder 302 connected to the outlet of the feeder 301; the feeder 302 includes a first feeder tube body 6 and a second feeder tube body 7 sleeved inside the first feeder tube body 6; the outer wall of the second feeder tube body 7 is connected to the inner wall of the first feeder tube body 6 through a first connecting part 9; the feeding pipes 4 are connected to a plurality of conveying pipes 2 through a first connecting fixing plate 11; the conveying pipes 2 are connected to a storage device 1 through a second connecting fixing plate 12.

[0055] In this embodiment, the second fabric tube body 7 includes a second fabric tube A section 71, a second fabric tube B section 72, and a second fabric tube C section 73 that connects the second fabric tube A section 71 and the second fabric tube B section 72; the second fabric tube A section 71 is provided with a first inverted conical inner cavity; the second fabric tube B section 72 is provided with a first cylindrical inner cavity; the second fabric tube C section 73 is provided with a second inverted conical inner cavity; the second fabric tube C section 73 is located outside the second cylindrical shape.

[0056] In this embodiment, the first fabric tube 6 is provided with a second cylindrical inner cavity; the second fabric tube 7 is partially located inside the second cylinder; a first gap is provided between the outer wall of the second fabric tube 7 and the inner wall of the first fabric tube 6; the width of the first gap is 7-9mm.

[0057] In this embodiment, the inlet of the second fabric tube 7 and the inlet of the first fabric tube 6 have a height difference of 10-14mm.

[0058] In this embodiment, the material feeder 3 is connected to the first connecting fixing plate 11 via the second connecting part 10; the second connecting part 10 includes three second connecting rods 1001; one end of the second connecting rod 1001 near the feed inlet of the feed pipe 4 is connected to the first connecting fixing plate 11, and the other end of the second connecting rod 1001 away from the feed inlet of the feed pipe 4 is connected to the material feeder 3; the angle between the second connecting rod 1001 and the axis of the material feeder 3 is 15°-45°.

[0059] In this embodiment, the outer wall of the second fabric tube 7 is connected to the inner wall of the first fabric tube 6 through the first connecting part 9; the first connecting part 9 includes three first connecting rods 901; the first fabric tube 6 is connected to the feed tube 4 through the first connecting rods 901; the angle between the first connecting rods 901 and the axis of the fabric feeder 3 is 15°-45°.

[0060] In this embodiment, the first connecting and fixing plate 11 is provided with a plurality of first connecting ports 1101, and the feeding pipe 4 is connected to the conveying pipe 4 through the first connecting ports 1101; the feeding pipe 4 is detachably connected to the first connecting and fixing plate 11; the feeding pipe 4 is perpendicular to the first connecting and fixing plate 11.

[0061] In this embodiment, the diameter of the discharge port of the feed pipe 4 is smaller than the diameter of the inlet port of the feed pipe 4; the diameter of the inlet port of the feed pipe 4 is larger than the diameter of the inlet port of the second distribution pipe 7; the second connecting fixing plate 12 is provided with a plurality of second connecting ports 1202; the feed pipe 2 is connected to the storage device 1 through the second connecting ports 1202; the end of the feed pipe 2 near the feed pipe 4 is detachably connected to the first connecting fixing plate 1101; the feed pipe 2 is inclined to the first connecting fixing plate 1101 and the second connecting fixing plate 1202.

[0062] In this embodiment, a ball blank mold cavity 5 is provided below the feed pipe 4; the inner diameter of the first feed pipe body 6 is 44-48mm, the inlet diameter of the second feed pipe A section 71 is 28-32mm, the outlet diameter of the second feed pipe A section 70 is 22-26mm, the inner diameter of the second feed pipe B section 72 is 22-26mm, the inlet diameter of the second feed pipe C section 73 is 22-26mm, and the outlet diameter of the second feed pipe C section 73 is 5-9mm.

[0063] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A blanking device characterized by, It includes multiple feeding pipes; each feeding pipe is provided with a feeding chamber; a material distributor is connected to the feeding chamber; the number of feeding pipes ranges from 2 to 34; The fabric feeder includes a fabric feeder inlet and a fabric feeder outlet connected to the fabric feeder inlet. The fabric section includes a first fabric tube and a second fabric tube partially sleeved inside the first fabric tube. The outer wall of the second fabric tube is connected to the inner wall of the first fabric tube via the first connecting part; The plurality of feeding pipes are connected to the plurality of conveying pipes through the first connecting and fixing plate; The plurality of conveying pipes are connected to the storage device via a second connecting and fixing plate.

2. The blanking device of claim 1, wherein: The second fabric tube body includes a second fabric tube A section, a second fabric tube B section, and a second fabric tube C section that connects the second fabric tube A section and the second fabric tube B section; The second material distribution tube A section is provided with a first inverted conical inner cavity; the inlet diameter of the second material distribution tube A section is 28-32mm, and the outlet diameter of the second material distribution tube A section is 22-26mm; The second fabric tube B section is provided with a first cylindrical inner cavity; the inner diameter of the second fabric tube B section is 22-26mm; The second fabric tube C section is provided with a second inverted conical inner cavity; The second material distribution tube C is located outside the second cylinder; the inlet diameter of the second material distribution tube C is 22-26mm, and the outlet diameter of the second material distribution tube C is 5-9mm.

3. The blanking device of claim 1, wherein: The first fabric tube body is provided with a second cylindrical inner cavity; the second fabric tube body is partially located inside the second cylinder; A first gap is provided between the outer wall of the second fabric tube and the inner wall of the first fabric tube; The width of the first gap is 7-9mm; the inner diameter of the first fabric tube is 44-48mm.

4. The blanking device of claim 3, wherein: The second fabric tube inlet and the first fabric tube inlet have a height difference of 10-14mm.

5. The blanking device of claim 1, wherein: The fabric feeder is connected to the first connecting fixing plate via a second connecting part; The second connecting part includes three second connecting rods; one end of the second connecting rod near the feed inlet of the feed pipe is connected to the first connecting fixing plate, and the other end of the second connecting rod away from the feed inlet of the feed pipe is connected to the material distributor.

6. The blanking device of claim 5, wherein: The angle between the second connecting rod and the axis of the fabric feeder is 15°-45°.

7. The blanking device of claim 1, wherein: The first connecting part includes three first connecting rods; the first fabric tube body is connected to the feed tube through the first connecting rods.

8. The blanking device of claim 7, wherein: The angle between the first connecting rod and the axis of the fabric feeder is 15°-45°.

9. The blanking device of claim 1, wherein: The first connecting and fixing plate is provided with a plurality of first connection ports, and the feeding pipe is connected to the conveying pipe through the first connection ports; The feeding pipe is detachably connected to the first connecting and fixing plate; The feeding pipe is perpendicular to the first connecting and fixing plate.

10. The blanking device of claim 1, wherein: The diameter of the discharge port of the feeding pipe is smaller than the diameter of the inlet port of the feeding pipe; the diameter of the inlet port of the feeding pipe is larger than the diameter of the inlet port of the second feeding pipe; a ball blank mold cavity is provided below the feeding pipe.

11. The blanking device of claim 1, wherein: The second connecting and fixing plate is provided with a plurality of second connection ports; the material conveying pipe is connected to the material storage device through the second connection ports; The end of the conveying pipe near the discharge pipe is detachably connected to the first connecting and fixing plate; The material conveying pipe is inclined to the first connecting fixing plate and the second connecting fixing plate.

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