Anti-blocking medicine powder screening device

Abstract

The utility model discloses an anti-blocking medicine powder screening device which comprises a bottom material basin, a fixed barrel is arranged at the axis position of the bottom material basin, a coil barrel is coaxially arranged in the fixed barrel, a coil is wound on the coil barrel, a conical slope is arranged at the top of the fixed barrel, a material barrel is arranged on the inner wall of the bottom material basin in a surrounding mode, and a screening barrel is arranged above the material barrel. A feeding groove is formed in the top of the screen drum, and a feeding port is formed in the bottom of the feeding groove. The utility model has the beneficial effects that the electromagnetic controller is adjusted to control the change frequency of the magnetic field of the coil, and particulate matters blocking the screen mesh are released through the change of the frequency, so that the particulate matters are effectively prevented from blocking the screen mesh; the particle screening device is simple in structure, convenient to operate, wide in adaptability, convenient to adjust and suitable for screening various particles.

Description

Technical Field

[0001] The utility model relates to the technical field of powder screening, in particular to an anti-blocking powder screening device. Background Art

[0002] In laboratories, powder screening devices are usually used. Currently, when large-particle powders pass through the sieve mesh of existing powder screening devices, the sieve mesh of the powder screening device is prone to being blocked by particles. Especially when dealing with samples with a large number of particles or a wide range of particle sizes, the problem of sieve mesh blockage is likely to occur. They may not pass through the sieve holes smoothly but accumulate on the sieve mesh. During long-term use, these accumulated large-particle powders will hinder the normal operation of the sieve mesh, resulting in sieve mesh blockage, thus affecting the efficiency and quality of powder screening. Content of the Utility Model

[0003] In view of the above deficiencies, the utility model adopts the following technical solutions:

[0004] An anti-blocking powder screening device includes a bottom material basin. A fixed cylinder is provided at the axial center position of the bottom material basin. A coil cylinder is coaxially arranged inside the fixed cylinder. A coil is wound around the coil cylinder. A conical slope is provided at the top of the fixed cylinder. A material cylinder is arranged around the inner wall of the bottom material basin. A sieve cylinder is provided above the material cylinder. A sieve plate is provided at the top of the material cylinder. An inlet chute is provided at the top of the sieve cylinder. An inlet port is provided at the bottom of the inlet chute.

[0005] Further, threads are provided on the outer side wall of the top of the material cylinder, and a thread groove that fits the threads is provided at the bottom of the inner side wall of the sieve cylinder.

[0006] Further, the inlet chute is of an inverted frustum-shaped slope structure.

[0007] Further, a groove is provided at the bottom of the thread groove on the inner side wall of the sieve cylinder, and the sieve plate is arranged in the groove. A coarse material outlet is provided on the sieve cylinder on one side of the sieve plate, and the height of the coarse material outlet is 2 - 3 mm higher than that of the sieve plate.

[0008] Further, a sieve mesh is arranged inside the sieve plate, and a magnetic sheet is embedded in the sieve mesh below the inlet port.

[0009] Further, an adjustment knob is provided on the outer side wall of the bottom material basin, and a power interface is provided below the adjustment knob.

[0010] Further, an electromagnetic controller is provided at the bottom inside the coil cylinder. The coil wire is connected to the electromagnetic controller, and the electromagnetic controller wire is connected to the adjustment knob and the power interface.

[0011] The beneficial effects of the present utility model are as follows: 1. By adjusting the electromagnetic controller to control the change frequency of the coil magnetic field, the particulate matter blocking the screen is released through the frequency change, effectively avoiding the blockage of the screen by particulate matter; 2. The structure of the present utility model is simple and easy to operate, with wide adaptability and is convenient to adjust and applicable to the screening of various particulate matters. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 It is a schematic diagram of the sectional structure of the present utility model;

[0014] Figure 3 It is a schematic diagram of the internal structure of the present utility model;

[0015] In the figure: 1 - bottom material basin, 11 - adjustment knob, 12 - power supply interface, 2 - fixed cylinder, 3 - coil cylinder, 31 - coil, 32 - electromagnetic controller, 4 - conical slope, 5 - material cylinder, 51 - sieve plate, 52 - screen, 53 - magnetic sheet, 6 - sieve cylinder, 61 - thread groove, 62 - groove, 63 - coarse material outlet, 7 - feed trough, 71 - feed inlet. SPECIFIC EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Combined with Figures 1 to 3 shown in:

[0018] An anti-clogging powder screening device, including a bottom material basin 1. At the axial center position of the bottom material basin 1, there is a fixed cylinder 2. Inside the fixed cylinder 2, a coil cylinder 3 is coaxially arranged. A coil 31 is wound around the coil cylinder 3. At the top of the fixed cylinder 2, there is a conical slope 4 to facilitate the sliding of the powder. Around the inner wall of the bottom material basin 1, there is a material cylinder 5. Above the material cylinder 5, there is a screening cylinder 6. At the top of the material cylinder 5, there is a sieve plate 51. Inside the sieve plate 51, there is a sieve mesh 52. Inside the sieve mesh 52 below the feed inlet 71, there is a magnetic piece 53. On the outer side wall at the top of the material cylinder 5, there are threads. At the bottom of the inner side wall of the screening cylinder 6, there is a thread groove 61 that fits the threads and is fixed by the threads. At the bottom of the thread groove 61 on the inner side wall of the screening cylinder 6, there is a groove 62. Inside the groove 62, there is a sieve plate 51 for screening the powder. The sieve plate 51 is fixed to the top of the material cylinder through the groove 62 of the screening cylinder. On the screening cylinder on one side of the sieve plate 51, there is a coarse material outlet 63. The height of the coarse material outlet 63 is about 2 - 3 mm higher than the sieve plate 51 to prevent the leakage of fine powder and discharge the coarse powder at the same time.

[0019] At the top of the screening cylinder 6, there is a feed groove 7. At the bottom of the feed groove 7, there is a feed inlet 71. The feed groove 7 is of an inverted frustum-shaped slope structure, making the feeding smooth and convenient.

[0020] On the outer side wall of the bottom material basin 1, there is an adjustment knob 11. Below the adjustment knob 11, there is a power supply interface 12 for connecting the power supply. At the bottom inside the coil cylinder 3, there is an electromagnetic controller 32. The wire of the coil 31 is connected to the electromagnetic controller 32. The electromagnetic controller 32 is wire-connected to the adjustment knob 11 and the power supply interface 12. By adjusting the adjustment knob 11, the electromagnetic controller can be adjusted to control the magnetic field change frequency of the coil 31. Other knobs can also be set to control the vibration amplitude through voltage, which helps to enhance the function of removing clogged particles. It should be noted that the change of voltage and frequency needs to be well controlled to prevent the generation of eddy current heating and affect the screening effect.

[0021] Working principle: The powder enters the screening cylinder through the feed inlet of the feed groove. The power supply interface is connected to the power supply. The electromagnetic controller is controlled by adjusting the adjustment knob to control the frequency. The magnetic piece moves continuously under the changing magnetic field of the coil. The vibration frequency is controlled by controlling the frequency. The particles clogging the sieve mesh are released from it through the change of frequency, avoiding the clogging of the sieve mesh by particles. When necessary, other knobs are set to control the vibration amplitude through voltage to enhance the function of removing clogged particles. After screening, directly remove the bottom material basin and transfer the materials in the bottom material basin.

[0022] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0023] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An anti-clogging powder screening device, characterized in that: The invention comprises a bottom material basin (1), wherein a fixed cylinder (2) is provided at the axis position of the bottom material basin (1), a coil cylinder (3) is coaxially provided in the fixed cylinder (2), a coil (3) is wound on the coil cylinder (3), a conical slope (4) is provided at the top of the fixed cylinder (2), a material barrel (5) is arranged around the inner wall of the bottom material basin (1), a screen cylinder (6) is provided above the material barrel (5), a screen plate (51) is provided at the top of the material barrel (5), a feed trough (7) is provided at the top of the screen cylinder (6), a feed port (71) is provided at the bottom of the feed trough (7), a screen (52) is provided in the screen plate (51), a magnetic sheet (53) is embedded in the screen (52) below the feed port (71), an electromagnetic controller (32) is provided at the bottom of the coil cylinder (3), and a wire of the coil (31) is connected to the electromagnetic controller (32).

2. The anti-clogging powder screening device according to claim 1, characterized in that: The top outer wall of the barrel (5) is provided with a thread, and the bottom of the inner wall of the sieve barrel (6) is provided with a thread groove (61) that fits with the thread.

3. The anti-clogging powder screening device according to claim 1, characterized in that: The feed trough (7) is an inverted frustum-shaped slope structure.

4. The anti-clogging powder screening device according to claim 1, characterized in that: A groove (62) is provided at the bottom of the thread groove (61) on the inner side wall of the sieve cylinder (6), the sieve plate (51) is provided in the groove (62), and a coarse material outlet (63) is provided on the sieve cylinder on one side of the sieve plate (51), the height of the coarse material outlet (63) being 2 to 3 mm higher than the sieve plate (51).

5. The anti-clogging powder screening device according to claim 1, characterized in that: An adjusting knob (11) is provided on the outer side wall of the bottom material basin (1), and a power supply interface (12) is provided below the adjusting knob (11).

6. The anti-clogging powder screening device according to claim 5, characterized in that: The electromagnetic controller (32) is connected to the adjusting knob (11) and the power interface (12) via a wire.

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