A sampling and adding device for powder materials

Abstract

The present invention discloses a sampling and adding device for powder materials, comprising a sleeve and a sampling and adding mechanism, wherein at least one opening is provided at the bottom of the sleeve; the sampling and adding mechanism comprises a fan blade in contact with the bottom of the sleeve, and a driving mechanism for driving the fan blade to rotate, wherein the fan blade can close or open the opening under the driving of the driving mechanism, and the powder material located below the sleeve spirally rises under the driving of the fan blade and enters the sleeve from the opening. The present invention realizes the automation of sampling and adding powder materials by replacing the method of manually scooping materials with a small spoon in the prior art.

Description

Technical Field

[0001] The invention belongs to the technical field of powder material sampling and adding, and in particular relates to a sampling and adding device for powder material. Background Art

[0002] In the prior art, when quantitative sampling and adding of powder materials is performed, especially when there are strict requirements on the weight of the powder materials, it is still necessary to manually take out the powder materials with a small spoon and then weigh them. When weighing the powder materials, it is often necessary to rely on a microbalance to weigh the samples of the powder materials, which not only takes a long weighing time, but also involves multiple weight sampling of the powder materials, which leads to low efficiency of adding powder materials and is difficult to meet the needs of fast batch sampling. It can be seen that how to develop a device that can automatically sample and add powder materials is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0003] In view of the above shortcomings of the prior art, the present invention provides a sampling and adding device for powder materials to achieve automatic sampling and adding of powder materials.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A sampling and adding device for powder materials, comprising:

[0006] A sleeve having at least one opening at its bottom;

[0007] The sampling and loading mechanism includes a fan blade in contact with the bottom of the sleeve, and a driving mechanism for driving the fan blade to rotate. The fan blade can close or open the opening under the drive mechanism, and the powder material below the sleeve spirally rises and enters the sleeve from the opening under the rotation of the fan blade.

[0008] Furthermore, the fan blades include:

[0009] a first blade, which is located in the sleeve, and the first blade closes or opens the opening under the drive of the driving mechanism;

[0010] The second blade is located outside the sleeve. Driven by the driving mechanism, the second blade spirally lifts the powder material below the sleeve so that the powder material enters the sleeve from the opening 101 .

[0011] Furthermore, the first blade is a three-dimensional blade with a triangular cross-section.

[0012] Furthermore, the opening is a fan-shaped opening, and the bottom surface of the first blade in contact with the bottom of the sleeve is a fan-shaped opening that can cover the fan-shaped opening.

[0013] Furthermore, the angle between the second blade and the horizontal plane is 30°-50°.

[0014] Furthermore, the driving mechanism comprises:

[0015] A rotating shaft, which is located in the sleeve, and one end of the rotating shaft is connected to the fan blade;

[0016] A motor is located above the sleeve and connected to the rotating shaft, and the motor is used to control the axial rotation of the rotating shaft.

[0017] Furthermore, a top plate is provided at the top of the sleeve, and the motor is mounted on a mounting plate located on the top plate.

[0018] Furthermore, the motor is connected to the rotating shaft via a coupling.

[0019] Furthermore, the motor is a servo motor that can drive the rotating shaft to rotate forward and reverse.

[0020] Furthermore, a vibration mechanism is provided on the outside of the sleeve, and the vibration mechanism includes a vibration motor provided on the outside of the sleeve.

[0021] The present invention provides a sampling and adding device for powder materials, which drives the fan blades to rotate axially through a driving mechanism, so that the powder material located at the bottom of the sleeve rises to the opening under the spiral drive of the rotating fan blades, and then the powder material enters the sleeve, and then the fan blades are controlled to close the opening to complete the sampling of the powder material; at the same time, the present invention also controls the opening of the opening by the fan blades through the driving mechanism to make the powder material in the sleeve fall, so as to realize the sampling of the powder material, thereby replacing the method of manually scooping materials with a small spoon in the prior art, and realizing the automation of sampling and adding of powder materials.

[0022] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic structural diagram of a sampling and adding device for powder materials according to an exemplary embodiment of the present invention;

[0025] Figure 2It is a schematic structural diagram of a sampling and adding device for powder materials according to an exemplary embodiment of the present invention;

[0026] Figure 3 A partial enlarged view of the bottom of the sleeve according to an exemplary embodiment of the present invention;

[0027] In the figure:

[0028] 1-sleeve, 101-opening;

[0029] 2-fan blade, 201-first blade, 202-second blade;

[0030] 3-driving mechanism, 301-rotating shaft, 302-motor;

[0031] 4- Top plate;

[0032] 5-Mounting plate;

[0033] 6-Coupling;

[0034] 7-Vibration motor. DETAILED DESCRIPTION

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0039] The present invention provides a sampling and adding device for powder materials, see Figure 1 and 2 , including a sleeve 1 and a sampling and loading mechanism, wherein at least one opening 101 is provided at the bottom of the sleeve 1; the sampling and loading mechanism includes a fan blade 2 in contact with the bottom of the sleeve 1, and a driving mechanism 3 for driving the fan blade 2 to rotate, the fan blade 2 can close or open the opening 101 under the drive of the driving mechanism 3, and the powder material located below the sleeve 1 spirally rises under the rotation of the fan blade 2 and enters the sleeve 1 from the opening 101.

[0040] The fan blade 2 is driven by the driving mechanism 3 to rotate axially, so that the powder material at the bottom of the sleeve 1 rises to the opening 101 under the spiral drive of the rotating fan blade 2, and then the powder material enters the sleeve 1, and then the fan blade 2 is controlled to close the opening 101 to complete the sampling of the powder material. At the same time, the present invention also controls the opening of the fan blade 2 to the opening 101 through the driving mechanism 3, so that the powder material in the sleeve 1 falls, so as to realize the sampling of the powder material, thereby replacing the method of manually digging the material with a small spoon in the prior art, and realizing the automation of sampling and adding the powder material. At the same time, when controlling the opening of the fan blade 2 to the opening 101, the opening size between the fan blade 2 and the opening 101 can be controlled by the driving mechanism 3, and the falling speed and quantity of the powder material from the sleeve 1 can be controlled, thereby realizing the controllability of the adding speed of the powder material. In short, the sampling and adding device provided by the present invention has the advantages of compact structure, simple control, and controllable adding.

[0041] As a preferred embodiment, see Figure 3 The fan blade 2 includes a first blade 201 and a second blade 202. The first blade 201 is located in the sleeve 1. The first blade 201 closes or opens the opening 101 under the drive mechanism 3; the second blade 202 is located on the outside of the sleeve 1. The second blade 202 is driven by the drive mechanism 3 to spirally lift the powder material located below the sleeve 1 so that the powder material enters the sleeve 1 from the opening 101.

[0042] By arranging the second blade 202 below the opening 101, when the device provided by the present invention samples the powder material, the second blade 202 rotates to break up the material below the sleeve 1, so that the device can smoothly descend in the powder material container, and the powder material can be spirally moved into the opening 101 as the second blade 202 rotates, so that the powder material enters the sleeve 1 from the opening 101, and the first blade 201 is closed to the opening 101 by controlling the driving mechanism 3, so that the sampling of the powder material can be completed; at the same time, the second blade 202 is located directly below the first blade 201 and is arranged on the outside of the sleeve 1, so that the driving mechanism 3 is controlled to drive the first blade 201 to close the opening 101. When the first blade 201 is controlled to open the opening 101, the second blade 202 on the outside of the sleeve 1 will not affect the powder material falling from the sleeve 1. For example, when the first blade 201 and the second blade 202 rotate simultaneously under the drive of the driving mechanism 3, if the second blade 202 is located in the sleeve 1, the powder material in the sleeve 1 will fall from the opening 101 driven by the rotation of the second blade 202. It can be seen that arranging the second blade 202 in the sleeve 1 will directly affect the speed of adding the powder material. Therefore, the second blade 202 on the outside of the sleeve 1 can avoid the influence of the second blade 202 on the speed of adding the powder material.

[0043] Furthermore, the first blade 201 is a three-dimensional blade with a triangular cross section. In this embodiment, by preferably using the first blade 201 as a three-dimensional blade with a triangular cross section, the powder material can be prevented from being retained on the first blade 201. At the same time, when the powder material in the sleeve 1 is added, the powder material will be unevenly distributed at the bottom of the sleeve 1 after falling from the opening 101. Therefore, by preferably using the first blade 201 as a three-dimensional blade with a triangular cross section, the powder material in the sleeve 1 can be stirred, so that the powder material in the sleeve 1 can fall smoothly from the opening 101, and the accumulation of the powder material at the bottom of the sleeve 1 is also avoided.

[0044] Among them, the opening 101 is a fan-shaped opening, and the bottom surface of the first blade 201 in contact with the bottom of the sleeve 1 is a fan-shaped that can cover the fan-shaped opening. In this embodiment, the opening 101 is selected as a fan-shaped, and the bottom surface of the first blade 201 is selected as a fan-shaped with a radius not less than the radius of the fan-shaped opening, so that the first blade 201 is axially rotated in contact with the bottom surface of the sleeve 1 under the control of the driving mechanism 3, and the first blade 201 is rotated to the top of the opening 101, while also saving the space required for the rotation of the first blade 201; at the same time, because the bottom surface of the first blade 201 is selected as a fan-shaped with a radius not less than the radius of the fan-shaped opening, when the first blade 201 rotates to the top of the opening 101, the opening 101 can be completely closed, thereby avoiding the problem of the powder material falling from the gap between the first blade 201 and the opening 101 after the sampling or addition of the powder material is completed. Furthermore, since the opening 101 and the bottom of the first blade 201 are both fan-shaped, the opening size of the opening 101 can be controlled by controlling the rotation angle of the first blade 201, so that the adding speed of the powder material can be controlled.

[0045] More specifically, the angle between the second blade 202 and the horizontal plane is 30°-50°. When the second blade 202 rotates, the powder material below the second blade 202 spirally rises along the length direction of the sleeve 1 driven by the rotation of the second blade 202, so that the powder material enters the interior of the sleeve 1 from the opening 101 to achieve sample addition to the device. Preferably, the second blade 202 is detachably connected to the rotating shaft 301 by bolts.

[0046] As a preferred embodiment, the driving mechanism 3 includes a rotating shaft 301 and a motor 302. The rotating shaft 301 is located in the sleeve 1, and one end of the rotating shaft 301 is connected to the fan blade 2. The motor 302 is located above the sleeve 1 and connected to the rotating shaft 301. The motor 302 is used to control the axial rotation of the rotating shaft 301. In this embodiment, the rotating shaft 301 is driven by the motor 302, and the first blade 201 and the second blade 202 on the fan blade 2 rotate synchronously in the sleeve 1. While the opening between the opening 101 and the first blade 201 continuously changes under the rotation of the first blade 201, the second blade 202 drives the powder material to spirally rise and enter the sleeve 1 from the opening 101, and then the first blade 201 is driven by the motor 302 to rotate to a position where the opening 101 can be closed, so as to achieve sampling of the powder material. When adding powder material, the motor 302 drives the first blade 201 to rotate to a position where the opening 101 can be opened to add powder material. At the same time, the speed or amount of adding is controlled by controlling the opening size between the opening 101 and the first blade 201.

[0047] Furthermore, a top plate 4 is provided at the top of the sleeve 1, and the motor 302 is mounted on a mounting plate 5 located on the top plate 4. In this embodiment, the sleeve 1 is detachably connected to the top plate 4 by bolts to achieve flexible installation of the sleeve 1 and the top plate 4, thereby facilitating maintenance of the sampling and adding device provided by the present invention.

[0048] Specifically, the motor 302 is connected to the rotating shaft 301 via a coupling 6. In this embodiment, the coupling 6 is preferably located inside the mounting plate 5, and the motor 302 is located on the top of the mounting plate 5.

[0049] More specifically, the motor 302 is a servo motor that can drive the rotating shaft 301 to rotate forward and reverse. In this embodiment, when sampling the powder material, the motor 302 is controlled to rotate forward to drive the second blade 202 to rotate, so that the powder material enters the sleeve 1 from the opening 101 under the rotation of the second blade 202, and when adding the powder material, the motor 302 is controlled to rotate reversely to drive the first blade 201 to move to the position of opening the opening 101, so that the powder material falls from the opening 101 to achieve the addition of the powder material. In short, by controlling the forward and reverse rotation of the rotating shaft 301 by the servo motor, the different control of adding and sampling the powder material can be achieved.

[0050] As a preferred embodiment, a vibration mechanism is further provided on the outside of the sleeve 1, and the vibration mechanism includes a vibration motor 7 provided on the outside of the sleeve 1. By opening the vibration mechanism provided on the outside of the sleeve 1, the powder material adhering to the inner wall of the sleeve 1 can be shaken off, thereby avoiding the retention of the powder material in the sleeve 1, and by controlling the vibration mechanism, the micro-sampling of the powder material can also be controlled, thereby facilitating the micro-sampling of the powder material. Preferably, the vibration motor 7 is detachably connected to the sleeve 1 through a clamp.

[0051] The operating method of a sampling and adding device for powder materials provided by the present invention is as follows: the sleeve 1 is placed downwardly into a container containing powder materials, and when the bottom of the sleeve 1 is close to the powder materials, the motor 302 is started and the motor 302 is controlled to rotate forward to rotate the first blade 201 and the second blade 202. The powder materials are driven by the rotation of the second blade 202 to spirally rise and enter the sleeve 1 from the opening 101 at the bottom of the sleeve 1. When the powder materials reach the bottom of the container or the powder materials in the sleeve 1 reach the sampling weight, the motor 302 is controlled to stop, the first blade 201 and the second blade 202 stop rotating, and the second blade 202 on the rotating shaft 301 completely covers the opening 101 to achieve sealing of the opening 101, thereby sealing the powder materials in the sleeve 1, and then taking the sleeve 1 out of the container containing the powder materials to complete the sampling of the powder materials. When adding samples through the device provided by the present invention, the motor 302 is controlled to drive the rotating shaft 301 to reverse, so that the first blade 201 opens a certain gap to the opening 101, and then the powder material falls from the gap between the first blade 201 and the opening 101. In order to make the powder material fall smoothly from the opening 101, the motor 302 can also be controlled to drive the rotating shaft 301 to make the first blade 201 and the second blade 202 rotate forward or reverse, so that the powder material is evenly dispersed at the bottom of the sleeve 1, and then the motor 302 is controlled to drive the rotating shaft 301 is reversed to make the powder material fall from the opening 101. Therefore, the powder material is micro-dosed by the continuous forward and reverse movement of the motor 302. Finally, when the powder material is close to the required weight or no more sample is added, the motor 302 is controlled to rotate to make the first blade 201 open the opening 101, and the sleeve 1 is driven to vibrate through the vibration mechanism to make the powder material fall from the sleeve 1. When the added powder material reaches the required weight, the motor 302 is immediately controlled to rotate to make the first blade 201 close the opening 101 at the bottom of the sleeve 1. When the powder material in the sleeve 1 is added, the powder material will be unevenly distributed at the bottom of the sleeve 1 after falling from the opening 101. Therefore, by preferably making the first blade 201 a three-dimensional blade with a triangular cross section, the powder material in the sleeve 1 can be stirred, so that the powder material in the sleeve 1 can fall smoothly from the opening 101, and the accumulation of the powder material at the bottom of the sleeve 1 is also avoided.

[0052] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A sampling and adding device for powder materials, characterized in that: include: A sleeve (1) having at least one opening (101) at its bottom; A sampling and loading mechanism, comprising a fan blade (2) in contact with the bottom of the sleeve (1), and a driving mechanism (3) for driving the fan blade (2) to rotate, wherein the fan blade (2) can close or open the opening (101) under the drive of the driving mechanism (3), and the powder material located below the sleeve (1) spirally rises under the rotation of the fan blade (2) and enters the sleeve (1) from the opening (101); The fan blade (2) comprises: A first blade (201) located in the sleeve (1), wherein the first blade (201) closes or opens the opening (101) under the drive of the driving mechanism (3); a second blade (202) located outside the sleeve (1), and driven by the driving mechanism (3), the second blade (202) performs spiral lifting on the powder material located below the sleeve (1), so that the powder material enters the sleeve (1) from the opening (101); The driving mechanism (3) comprises: A rotating shaft (301) is located in the sleeve (1), and one end of the rotating shaft (301) is connected to the fan blade (2); A motor (302) is located above the sleeve (1) and connected to the rotating shaft (301), and the motor (302) is used to control the axial rotation of the rotating shaft (301).

2. A sampling and adding device for powder materials according to claim 1, characterized in that: The first blade (201) is a three-dimensional blade with a triangular cross-section.

3. A sampling and adding device for powder materials according to claim 2, characterized in that: The opening (101) is a fan-shaped opening, and the bottom surface of the first blade (201) in contact with the bottom of the sleeve (1) is fan-shaped and can cover the fan-shaped opening.

4. A sampling and adding device for powder materials according to claim 1, characterized in that: The included angle between the second blade (202) and the horizontal plane is 30°-50°.

5. A sampling and adding device for powder materials according to claim 1, characterized in that: A top plate (4) is provided at the top end of the sleeve (1), and the motor (302) is mounted on a mounting plate (5) located on the top plate (4).

6. A sampling and adding device for powder materials according to claim 1, characterized in that: The motor (302) is connected to the rotating shaft (301) via a coupling (6).

7. A sampling and adding device for powder materials according to claim 6, characterized in that: The motor (302) is a servo motor capable of driving the rotating shaft (301) to rotate forward and reverse.

8. A sampling and adding device for powder materials according to any one of claims 1 to 7, characterized in that: A vibration mechanism is also provided on the outside of the sleeve (1), and the vibration mechanism comprises a vibration motor (7) provided on the outside of the sleeve (1).

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