Ungraded horizontal single-screw powder blanking device

Abstract

The utility model relates to the field of single-screw powder conveying, and discloses an ungraded horizontal single-screw powder blanking device, which comprises a charging barrel, a screw rod, a screw rod, a screw rod and a screw rod, the conveying screw rod is horizontally mounted in the charging barrel; the material stabilizing cover is mounted at the discharging end of the charging barrel; the material stabilizing cover comprises a plurality of material stabilizing rods, and the material stabilizing rods are installed on the material stabilizing cover. According to the utility model, through the design of the horizontally mounted single screw and the combination of the material stabilizing rod array on the material stabilizing cover, the flow velocity of powder at the discharge end is slowed down, the uniform distribution of the powder is promoted, the flow velocity difference caused by the difference of the particle size and density of the powder is effectively prevented, the material grading phenomenon is avoided, and the stability of the product quality is ensured; and the blanking precision is improved, and the deterioration risk of the temperature-sensitive powder is also reduced.

Description

Technical Field

[0001] The utility model relates to the field of single-screw powder conveying, in particular to a non-classified horizontal single-screw powder feeding device. Background Art

[0002] In the powder material handling and processing industry, the uniformity and stability of powder feeding are key links to ensure product quality. Vertical screw feeding devices have been widely used in various powder processing scenarios. Twin-screw powder feeding devices theoretically increase the number of screws, thereby improving the ability to control powder flow and improving the feeding accuracy to a certain extent.

[0003] When the existing vertical screw feeding device is used for feeding, the powder is under the action of its own gravity and the centrifugal force when the vertical screw rotates. Due to the different particle sizes and densities of the mixed powder materials, there will be a very small flow rate difference when the powder is fed. If the equipment runs for a long time, it will inevitably cause material classification and product instability.

[0004] At present, there are also horizontal single-screw or twin-screw powder feeding methods, which can solve the classification problem. However, the single-screw powder feeding accuracy is low and the error is large, so it is rarely used. Even if the twin-screw powder feeding device has a slightly higher accuracy, the powder feeding deviation is large, especially for powders with large differences in density. In addition, the twin-screw powder feeding is easy to generate heat, which can easily cause deterioration of temperature-sensitive powders. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the powder feeding precision of different single screws is low, the error is large, and they are rarely used; even if the precision of the double screw powder feeding device is slightly higher, the powder feeding deviation is large. In view of the defects of the prior art, a non-classified horizontal single screw powder feeding device is provided.

[0006] The utility model adopts the following technical solutions to solve the above technical problems:

[0007] A non-classified horizontal single-screw powder feeding device, comprising:

[0008] The barrel is used to contain and transport powder materials. As a container for powder materials, the barrel is designed to ensure the closure and continuity of the powder during transportation, effectively preventing the powder from direct contact with the external environment;

[0009] The conveying screw is horizontally installed inside the barrel, and drives the powder material to move axially in the barrel through rotation. The single screw rotation realizes uniform and continuous conveying of the powder, which not only improves the feeding efficiency, but also ensures the stability of the powder during the conveying process, and avoids the accumulation and blockage of the powder in the barrel. The screw groove of the conveying screw is deep and the pitch is narrow. The deep screw groove has higher material conveying efficiency, and the narrow pitch ensures stable material conveying with relatively high precision.

[0010] The material stabilizing cover is installed at the discharge end of the barrel, which effectively slows down the flow rate of the powder and prevents the powder from being classified at the discharge port due to excessive flow rate;

[0011] The material stabilizing cover comprises a plurality of material stabilizing rods, which are installed on the material stabilizing cover and are used to slow down the flow rate of powder and prevent powder classification.

[0012] A plurality of material stabilizing rods are installed on the inner circle of the material stabilizing cover and are distributed in a circular array.

[0013] Preferably, the non-classified horizontal single-screw powder feeding device further comprises: a feeding hopper installed at one end of the barrel for feeding powder.

[0014] Preferably, the lower hopper comprises: a connecting groove, which is opened on the surface of the lower hopper, and the barrel is connected in the connecting groove.

[0015] Preferably, the non-graded horizontal single-screw powder feeding device further includes: a support frame, the barrel is installed on the support frame, and the support frame provides a stable support platform for the entire feeding device, ensuring the stability and safety of each component during installation and operation.

[0016] Preferably, the non-graded horizontal single-screw powder feeding device also includes: a power source, which is installed on the support frame, and the power shaft of the power source is connected to one end of the conveying screw. The power source is used to provide rotational power for the conveying screw. The power source provides stable and reliable rotational power for the conveying screw, ensuring continuous and uniform conveying of the powder material in the barrel.

[0017] Preferably, the non-graded horizontal single-screw powder feeding device also includes: a fan feed part installed on the support frame, the barrel is connected to the fan feed part, the power source is connected to the fan feed part, and the fan feed part can feed the barrel evenly and continuously.

[0018] Preferably, the cross-section of the lower hopper is conical, and the conical cross-section design of the lower hopper helps the powder to fall smoothly, thereby reducing the resistance of the powder during the discharge process.

[0019] Preferably, the projection shape of the connecting groove is U-shaped.

[0020] Preferably, the unloading hopper is arranged to move on the barrel for adjusting the unloading position.

[0021] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0022] (1) The horizontally mounted single screw design, combined with the array of stabilizing rods on the stabilizing cover, slows down the flow rate of the powder at the discharge end and promotes the uniform distribution of the powder, effectively preventing the flow rate difference caused by the difference in powder particle size and density, avoiding material classification, and ensuring the stability of product quality.

[0023] (2) By optimizing the design of the conveying screw, the structure of the stabilizing hood, and the adjustment mechanism of the hopper, the feeding accuracy is significantly improved, and the feeding error caused by the design defects of the equipment itself is reduced, making the feeding process more accurate and reliable. The single screw design adopted reduces the friction and heat generation between mechanical parts, reducing the risk of deterioration of temperature-sensitive powders. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model.

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure from another viewing angle proposed by the utility model.

[0026] Figure 3 This is a schematic structural diagram of the barrel and the material stabilizing cover proposed in the utility model.

[0027] Figure 4 This is a schematic structural diagram of the conveying screw proposed by the utility model.

[0028] Figure 5 This is a schematic structural diagram of the material stabilizing cover and the material stabilizing rod proposed in the utility model.

[0029] Figure 6 The utility model is a schematic diagram of the structure of the lower hopper.

[0030] The reference numerals in the figure are: 1, support frame; 2, barrel; 201, conveying screw; 3, power source; 4, fan feed part; 5, stabilizing cover; 501, stabilizing rod; 6, lower hopper; 601, connecting groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0033] Reference Figure 1-Figure 6 , a non-graded horizontal single-screw powder feeding device, comprising: a barrel 2, used to contain and convey powder materials. The barrel 2 is a container for powder materials. Its design ensures the closure and continuity of the powder during the conveying process, effectively prevents the direct contact between the powder and the external environment, and reduces the pollution and loss of the powder. The material and surface treatment of the barrel 2 usually have the characteristics of wear resistance and corrosion resistance, which prolongs the service life of the equipment; a conveying screw 201, which is horizontally installed inside the barrel 2 and drives the powder materials to move axially in the barrel 2 through rotation. The conveying screw 201 is a key component for driving the powder materials to move axially in the barrel 2. Its rotation is driven by the spiral blades to achieve uniform and continuous conveying of the powder. The feeding not only improves the feeding efficiency, but also ensures the stability of the powder during the conveying process, and avoids the accumulation and blockage of the powder in the barrel 2; the stabilizing cover 5 is installed at the discharge end of the barrel 2; the stabilizing cover 5 includes a plurality of stabilizing rods 501, and the plurality of stabilizing rods 501 are installed on the stabilizing cover 5, which are used to slow down the flow rate of the powder and prevent the powder from being classified. The plurality of stabilizing rods 501 on the stabilizing cover 5 are distributed in a circular array, which effectively slows down the flow rate of the powder and prevents the classification of the powder at the discharge port due to the excessive flow rate, thereby ensuring the uniformity of the powder feeding, improving the feeding quality, and meeting the demand for fine control of powder materials in industrial production; a plurality of stabilizing rods 501 are installed on the inner circle of the stabilizing cover 5 and are distributed in a circular array.

[0034] The round rod array inside the stabilizing hood 5 can act as a physical barrier to slow down the speed at which the powder falls directly from the barrel 2 and make its flow more uniform, helping to reduce the difference in powder flow rate caused by differences in particle size and density, and to a certain extent alleviate the grading phenomenon; the stabilizing rod 501 can guide the powder to form a more uniform distribution in the stabilizing hood 5, especially when the powder passes through the gap of the stabilizing rod 501, it will be dispersed and rearranged to a certain extent, helping to reduce the situation where the local powder concentration is too high or too low; by stabilizing the flow state of the powder, the stabilizing hood 5 helps to improve the overall stability of the feeding and reduce the decrease in feeding accuracy caused by flow rate fluctuations.

[0035] Reference Figure 1 and Figure 2, a lower hopper 6 is installed at one end of the barrel 2 and is used for powder unloading; the lower hopper 6 includes: a connecting groove 601, which is opened on the surface of the lower hopper 6, and the barrel 2 is connected in the connecting groove 601; the cross-sectional shape of the lower hopper 6 is conical; the projection shape of the connecting groove 601 is U-shaped; the lower hopper 6 is configured to move on the barrel 2 to adjust the unloading position, and the conical cross-sectional design of the lower hopper 6 facilitates the smooth falling of the powder and reduces the resistance of the powder during the unloading process. The U-shaped projection shape and movable design of the connecting groove 601 enable the lower hopper 6 to adjust its position on the barrel 2 according to actual needs, thereby increasing the flexibility and applicability of the equipment, and is particularly suitable for scenarios where the unloading position needs to be precisely controlled or the unloading port needs to be frequently changed.

[0036] Reference Figure 1 and Figure 2 , support frame 1, barrel 2 is installed on support frame 1; power source 3 is installed on support frame 1, power shaft of power source 3 is connected with one end of conveying screw 201, power source 3 is used to provide rotational power for conveying screw 201; fan feed part 4 is installed on support frame 1, barrel 2 is connected with fan feed part 4, power source 3 is connected with fan feed part 4, to ensure uniform and stable material discharge from the source, support frame 1 provides a stable support platform for the whole discharge device, ensures the stability and safety of each component during installation and operation, and takes into account the overall balance and The force condition can effectively prevent equipment damage or malfunction caused by vibration or external force. The power source 3 adopts a servo motor or a stepper motor, which can ensure the continuous and uniform transportation of powder materials in the barrel 2. Its high efficiency and energy-saving characteristics reduce the operating cost of the equipment and improve production efficiency. The installation of the fan feed part 4 realizes a close connection with the barrel 2, providing a convenient interface for further processing or transportation of the powder materials. The function of the fan can also prevent the powder from generating dust during the transportation process, protect the production environment, and improve the safety of the workplace.

[0037] During use, the power source 3 is started to rotate its power shaft, thereby driving the conveying screw 201 to start rotating in the barrel 2. The rotation of the conveying screw 201 pushes the powder material to move axially in the barrel 2 through its spiral blades, thereby realizing uniform and continuous conveying of the powder. The powder material moves from one end of the barrel 2 to the other end under the push of the conveying screw 201. The closed and continuous design of the barrel 2 ensures the isolation of the powder from the external environment during the conveying process, thereby preventing the contamination and loss of the powder. When the powder material approaches the discharge end, it enters the area of ​​the stabilizing cover 5. The several stabilizing rods 501 on the stabilizing cover 5 act as a physical barrier to slow down the flow rate of the powder and The flow is made more uniform. The circular array distribution of the stabilizing rods 501 effectively prevents the grading of the powder due to excessive flow rate, ensuring the uniformity and quality of the powder discharge. According to actual needs, the discharge point is adjusted by moving the position of the discharge hopper 6 on the barrel 2. The conical cross-section design of the discharge hopper 6 promotes the smooth falling of the powder and reduces the resistance. The powder flows out through the outlet of the discharge hopper 6 and enters the subsequent processing or conveying system. During the powder conveying process, the fan is turned off to prevent the powder from generating dust in the conveying path. The close connection of the fan ensures that the powder material can smoothly enter the subsequent processing or conveying equipment, while protecting the safety of the production environment and the workplace.

[0038] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0039] The horizontally mounted single screw design, combined with the array of stabilizing rods 501 on the stabilizing cover 5, slows down the flow rate of the powder at the discharge end and promotes the uniform distribution of the powder, effectively preventing the flow rate difference caused by the difference in powder particle size and density, avoiding material grading, and ensuring the stability of product quality.

[0040] By optimizing the design of the conveying screw 201, the structure of the material stabilizing cover 5 and the adjustment mechanism of the discharge hopper 6, the discharge accuracy is significantly improved, and the discharge error caused by the design defects of the equipment itself is reduced, making the discharge process more accurate and reliable. The single screw design adopted reduces the friction and heat generation between the mechanical parts, and reduces the risk of deterioration of temperature-sensitive powders.

[0041] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0042] Secondly, the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0043] Finally, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A non-classified horizontal single-screw powder feeding device, characterized in that: include: A barrel (2) for containing and conveying powder materials; A conveying screw (201) is horizontally installed inside the barrel (2) and drives the powder material to move axially inside the barrel (2) through rotational motion; A material stabilizing cover (5) installed at the discharge end of the barrel (2); The material stabilizing cover (5) comprises a plurality of material stabilizing rods (501), which are installed on the material stabilizing cover (5) and are used to slow down the flow rate of powder and prevent powder classification.

2. The non-classified horizontal single-screw powder feeding device according to claim 1, characterized in that: A plurality of material stabilizing rods (501) are installed on the inner circle of the material stabilizing cover (5) and are distributed in a circular array.

3. The non-classified horizontal single-screw powder feeding device according to claim 1, characterized in that: Also includes: A discharge hopper (6) is installed at one end of the barrel (2) and is used for discharge of powder.

4. The non-classified horizontal single-screw powder feeding device according to claim 3, characterized in that: The lower hopper (6) comprises: A connecting groove (601) is provided on the surface of the lower hopper (6), and the barrel (2) is connected in the connecting groove (601).

5. The non-classified horizontal single-screw powder feeding device according to claim 1, characterized in that: Also includes: A support frame (1), wherein the barrel (2) is mounted on the support frame (1).

6. The non-classified horizontal single-screw powder feeding device according to claim 5, characterized in that: Also includes: A power source (3) is installed on the support frame (1); a power shaft of the power source (3) is connected to one end of the conveying screw (201); and the power source (3) is used to provide rotational power for the conveying screw (201).

7. The non-classified horizontal single-screw powder feeding device according to claim 6, characterized in that: Also includes: The fan feed part (4) is installed on the support frame (1), the barrel (2) is connected to the fan feed part (4), and the power source (3) is connected to the fan feed part (4).

8. The non-classified horizontal single-screw powder feeding device according to claim 3, characterized in that: The cross-sectional shape of the lower hopper (6) is conical.

9. The non-classified horizontal single-screw powder feeding device according to claim 4, characterized in that: The projection shape of the connecting groove (601) is U-shaped.

10. The non-classified horizontal single-screw powder feeding device according to claim 3, characterized in that: The material discharge hopper (6) is arranged to move on the barrel (2) so as to adjust the material discharge position.

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