Metal powder directional screening equipment

Abstract

The utility model discloses directional screening equipment for metal powder, which comprises a screening mechanism, one end of the screening mechanism is provided with a feed inlet, the top of the screening mechanism is sealed, and the bottom of the screening mechanism is provided with a screening net; a feeding opening is formed in one end of the transfer mechanism, and a retention mechanism is arranged at the bottom; a drying system is arranged in the treatment mechanism; the retention mechanism controllably blocks the communication between the transfer mechanism and the processing mechanism; and a discharging opening is formed in the bottom of the discharging mechanism. According to the utility model, fine-screened low-granularity powder is accommodated and collected through the inclined retention mechanism, the equivalent weight reaches a certain standard, the accommodating plate is opened under the gravity action of the powder, and the powder enters the treatment mechanism to be discharged and stored in a bag after being subjected to a subsequent process; the feeding port is additionally arranged, powder adding in a special particle size interval is achieved, mixing and drying are conducted in cooperation with the processing mechanism subsequently, and the screening equipment has the mixing function at the same time; the external structure of the device is reinforced, and balance management is increased; the discharge port is butted through the fixed platform to discharge powder, so that the powder is prevented from being scattered.

Description

Technical Field

[0001] The utility model relates to the technical field of metal powder production, and more specifically to directional screening equipment for metal powder. Background Art

[0002] In the powder metallurgy process, even if the powder of the same material is used, it is necessary to ensure that the particle size distribution is appropriate in order to obtain a high-density pressed embryo. Therefore, it is necessary to screen the raw material powders of different particle sizes during the smelting of metal powders to classify them into several grades with a narrower size range according to the particle size. In order to achieve this goal, a standard mesh sieve or vibrating screen is generally used for screening.

[0003] However, in actual production, due to various reasons, the powder in the target particle size range is generally mixed with powder of equivalent quality and finer particle size. Although it will not have an adverse effect on the subsequent production of related products, it will inevitably affect the output of high-fine particle size powder and cause waste. Sometimes the production line is screened according to the specified particle size range, but the particle size range required by the customer may include at least two particle size ranges. At this time, the powder output of a certain particle size range will not be deliberately increased, which will cause excess powder in other particle size ranges. Generally, powders of different particle size ranges within the required range will be mixed, that is, after screening, they will be remixed through mixing equipment. Two equipments, screening machine and mixer, are required. Not only is the process cumbersome, but it also increases the space usage pressure of the factory. In addition, when the target particle size of the screening is very high, the amount of powder produced will be very small. If some pre-grouping processing is required for this part of the powder, such as drying operation, the drying components need to maintain a long-term operating state, and the drying energy consumption per unit time is large and the actual drying efficiency is low. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a metal powder directional screening device to solve one or more of the above-mentioned problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] Metal powder directional screening equipment, including

[0007] A screening mechanism, which has a feed port at one end, a capped top, and a screening net at the bottom;

[0008] A transfer mechanism, one end of which is provided with a feeding port, the top of which is connected with the bottom of the screening mechanism, and the bottom of which is provided with a retention mechanism;

[0009] A processing mechanism, the top of which is connected to the bottom of the transfer mechanism and accommodates the retention mechanism, and a drying system is provided inside; the retention mechanism controllably blocks the connection between the transfer mechanism and the processing mechanism;

[0010] A discharge mechanism, the top of which is connected to the processing mechanism and the bottom of which is provided with a discharge port;

[0011] The detention mechanism includes

[0012] A transition funnel, which is arranged at the connection between the transfer mechanism and the processing mechanism;

[0013] A sealing seat, which is arranged outside the transition funnel, with the top portion butted against the transfer mechanism and the bottom butted against and fixed to the processing mechanism;

[0014] The accommodating tube is a tube member, the bottom of which is a beveled structure and is connected from top to bottom;

[0015] The accommodating plate has one end rotatably connected to the accommodating cylinder and the other end connected to the transition funnel via an elastic member in a normal state.

[0016] Furthermore, a plurality of locking buckles are evenly distributed along a ring on the side of the transfer mechanism, a card holder seat is provided at the bottom of the screening mechanism, a card holder seat is provided at the top surface of the card holder seat, and the screening mechanism and the transfer mechanism are connected and fixed or removed and separated by the locking buckles and the card holder slots.

[0017] Furthermore, the feed port and the feed inlet are both upward-rising transport elbows, and the feed port and the feed inlet are both connected to the upper end of the side surface of the corresponding shell.

[0018] Furthermore, the transfer mechanism as a whole is a funnel structure, and the bottom of the transfer mechanism and the transition funnel are integrally formed.

[0019] Furthermore, a plurality of reinforcing rods are connected to the outside of the processing mechanism, and an unclosed rod-jointing ring is provided on the outer cover of the reinforcing rod, and a balancer is provided at the front and end of the rod-jointing ring.

[0020] Furthermore, the discharge mechanism is a funnel structure as a whole, a fixed platform is provided at the bottom of the discharge mechanism, a material opening is opened at the center of the fixed platform, and the material opening is connected to the inside of the discharge mechanism.

[0021] In summary, the utility model has the following beneficial effects: through the inclined retention mechanism, the low-particle-size powder of the fine screen is contained and collected, and when the equivalent amount reaches a certain standard, the containing plate is opened under the action of the powder gravity, and the powder enters the processing mechanism to complete the post-process and is discharged from the collection bag; the feed port is increased to realize the addition of powder in a special particle size range, and the subsequent mixing and drying is carried out in conjunction with the processing mechanism, and the screening equipment also has a mixing function; the structure of the external part of the device is strengthened to increase the balance management; the discharge port is connected to the fixed platform to discharge the powder to prevent external scattering. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1A schematic diagram of the overall structure of an implementation method provided by the utility model;

[0023] Figure 2 A cross-sectional view of the overall structure of an implementation method provided by the utility model;

[0024] Figure 3 A schematic diagram of a screening net according to an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of a retention mechanism according to an embodiment of the present invention.

[0026] In the figure: 10, screening mechanism; 11, feed port; 12, screening net; 13, bracket seat; 14, buckle slot; 20, transfer mechanism; 21, feeding port; 30, retention mechanism; 31, transition funnel; 32, accommodating cylinder; 33, accommodating plate; 40, processing mechanism; 41, reinforcing rod; 42, rod paralleling ring; 43, balancer; 50, discharge mechanism; 51, discharge port; 52, fixed platform; 60, locking buckle. DETAILED DESCRIPTION

[0027] Example

[0028] The following is combined with Figure 1-4 The utility model is described in further detail.

[0029] Metal powder directional screening equipment, such as Figure 1 and Figure 2 As shown, it includes a screening mechanism 10, a transfer mechanism 20, a retention mechanism 30, a processing mechanism 40 and a discharge mechanism 50. Among them, a feed port 11 and a charging port 21 are respectively provided on the same side of the screening mechanism 10 and the transfer mechanism 20. The feed port 11 is used to transfer large-size powders that need to be finely screened into the screening mechanism 10. The charging port 21 is provided with a sealing valve. When it is enabled, other size powders in the qualified range can be added for mixing. The charging port 21 and the feeding port 11 are both upward-rising transport elbows, accompanied by gas for material transmission. The charging port 21 and the feeding port 11 are both connected to the upper end of the side of the relevant mechanism to ensure that the material and the gas are transported from top to bottom.

[0030] like Figure 3 As shown, the top of the screening mechanism 10 is capped, and a screening net 12 is set at the bottom. The screening net 12 is set at the connection between the screening mechanism 10 and the transfer mechanism 20. The screening net 12 is set through a related connecting frame and a pressing frame to ensure that the filter screen will not be displaced due to the mass of the powder and the impact of falling. The transfer mechanism 20 is a funnel structure as a whole. The top of the transfer mechanism 20 is connected to the bottom of the screening mechanism 10. The bottom is provided with a retention mechanism 30, and is integrally formed with the transition funnel 31 of the retention mechanism 30.

[0031] Three locking buckles 60 are distributed along the annular array on the side of the transfer mechanism 20, and a card holder seat 13 is provided at the bottom of the screening mechanism 10. The card holder seat 13 is provided with an annular card buckle groove 14 outside for fastening the locking buckle 60. The transfer mechanism 20 and the screening mechanism 10 are connected and fixed or removed and separated through the locking buckle 60 and the card buckle groove 14. In this way, the two can be detachable, which is convenient for the subsequent cleaning of the screening net 12, and can also ensure the sealing of the transfer mechanism 20 and the screening mechanism 10.

[0032] like Figure 4 As shown, the retention mechanism 30 also includes a sealing seat, a receiving tube 32 and a receiving plate 33. The sealing seat is arranged outside the transition funnel 31, and has a seat support at the bottom, which is used to dock with the processing mechanism 40 and fix it, and dock with the transfer mechanism 20 at the top to completely isolate the transition funnel 31 from the outside. The receiving tube 32 is fixed and connected to the bottom of the transition funnel 31. The receiving tube 32 is a tube member, with upper and lower tubes, and the bottom is a beveled structure. The beveled end is rotatably connected to the receiving plate 33, so that the receiving plate 33 is set with an inclination. The other end of the receiving plate 33 is connected to the transition funnel 31 with an elastic member. The elastic member is in a normal state when set, without extension or compression. Fine-grained powder and powder added later fall on the receiving plate 33 and slide down to the lower end, and continue to accumulate. After reaching a certain mass, the receiving plate 33 automatically rotates and opens, stretching the elastic member. As the subsequent powder continues to fall, the material discharge trend to the processing mechanism 40 is maintained. Therefore, the retention mechanism 30 plays a role in controllably blocking or connecting the transfer mechanism 20 and the processing mechanism 40. Once the powder stops falling, when the powder is thrown to a certain extent on the receiving plate 33, the elastic member slowly lifts the receiving plate 33 to restore it until the retention mechanism 30 is completely closed, so as to achieve the purpose of quantitative material discharge. The retention mechanism 30 occupies the space at the upper end of the processing mechanism 40, and the processing mechanism 40 is connected to the bottom of the transfer mechanism 20.

[0033] The processing mechanism 40 is provided with a drying system inside. The drying is mainly carried out by blowing hot air, which not only dries the powder, but also mixes the powder by blowing. The processing mechanism 40 has three reinforcing rods 41 arranged in a ring. The reinforcing rods 41 are provided with an unclosed parallel rod ring 42 on the outer surface. The parallel rod ring 42 connects the three reinforcing rods 41 together. The front and rear ends of the parallel rod ring 42 are provided with a balancer 43, which balances and strengthens the processing mechanism 40. The discharge mechanism 50 is a funnel mechanism as a whole. The top is connected to the processing mechanism 40, and a discharge port 51 is provided at the bottom. A fixed platform 52 is provided near the discharge port 51 at the bottom of the discharge mechanism 50. A material port is provided in the center of the fixed platform 52. The material port and the discharge port 51 are aligned, so that the material port and the inside of the discharge mechanism 50 are connected.

[0034] The large-sized material enters the screening mechanism 10 from the feed port 11, and the small-sized powder is screened into the transfer mechanism 20 with the help of the screening net 12. The powder is accumulated on the receiving plate 33 and added into the processing mechanism 40 in a quantitative manner. A sensor is arranged at the corresponding position of the receiving plate 33. When the receiving plate 33 is sensed to be opened, the drying system of the processing mechanism 40 starts to operate for blowing and drying. The processed powder falls into the discharge mechanism 50 and finally falls out from the discharge port 51 for packaging.

[0035] If the particle size range required by the customer is relatively large, in addition to the small-size powder, other particle size powders within the qualified range can also be added, mixed through the processing mechanism 40, and finally packaged.

[0036] It should be noted that this specific embodiment is merely an explanation of the present utility model, and it is not a limitation of the present utility model. After reading this specification, those skilled in the art can make non-creative modifications to the present embodiment as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. Metal powder directional screening equipment, characterized by: include A screening mechanism (10) having a feed inlet (11) at one end, a capped top, and a screening net (12) at the bottom; A transfer mechanism (20) having a feeding port (21) at one end, a top portion thereof being connected to a bottom portion of the screening mechanism (10), and a retention mechanism (30) being provided at the bottom portion; a processing mechanism (40), the top of which is connected to the bottom of the transfer mechanism (20) and accommodates the retention mechanism (30), and a drying system is provided inside; the retention mechanism (30) can controllably block the communication between the transfer mechanism (20) and the processing mechanism (40); A discharge mechanism (50), the top of which is connected to the processing mechanism (40) and the bottom of which is provided with a discharge port (51); The retention mechanism (30) comprises A transition funnel (31), which is arranged at the connection between the transfer mechanism (20) and the processing mechanism (40); A sealing seat, which is arranged outside the transition funnel (31), with its top butted against the transfer mechanism (20) and its bottom butted against and fixed to the processing mechanism (40); The accommodating cylinder (32) is a tubular member, the bottom of which is a beveled structure and is connected from top to bottom; A containing plate (33) has one end rotatably connected to the containing cylinder (32), and the other end connected to the transition funnel (31) via an elastic member in a normal state.

2. The metal powder directional screening device according to claim 1, characterized in that: The side surface of the transfer mechanism (20) is evenly distributed with a plurality of locking buckles (60) along a ring shape, the bottom of the screening mechanism (10) is provided with a card holder seat (13), and the top surface of the card holder seat (13) is provided with a buckle groove (14), and the screening mechanism (10) and the transfer mechanism (20) are connected and fixed or removed and separated by the locking buckles (60) and the buckle groove (14).

3. The metal powder directional screening device according to claim 1, characterized in that: The feed port (21) and the feed port (11) are both upward-rising transport elbows, and the feed port (21) and the feed port (11) are both connected to the upper end of the side surface of the corresponding shell.

4. The metal powder directional screening device according to claim 1, characterized in that: The transfer mechanism (20) is a funnel structure as a whole, and the bottom of the transfer mechanism (20) and the transition funnel (31) are integrally formed.

5. The metal powder directional screening device according to claim 1, characterized in that: A plurality of reinforcing rods (41) are connected to the outside of the processing mechanism (40), and an unclosed rod-combining ring (42) is provided on the outer surface of the reinforcing rod (41). A balancer (43) is provided at the front and rear ends of the rod-combining ring (42).

6. The metal powder directional screening device according to claim 1, characterized in that: The discharge mechanism (50) is a funnel structure as a whole. A fixed platform (52) is provided at the bottom of the discharge mechanism (50). A material opening is provided at the center of the fixed platform (52). The material opening is communicated with the interior of the discharge mechanism (50).

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