A powder dosing device

Abstract

The utility model provides a kind of powder rationing device, bracket, the bracket is connected with powder cylinder, the powder cylinder is equipped with accommodating cavity;Cylinder, the cylinder is set on the bracket, the output end of the cylinder is towards the accommodating cavity;Quantitative addition unit;Blanking plate.The powder rationing device provided by the utility model guides powder into powder cylinder along feed inlet, cylinder operates at this time, to control quantitative powder guide rod to be located on bracket and slide along vertical direction, when cylinder retracts, guiding groove is communicated with accommodating cavity at this time, under the action of gravity, powder will be guided to the bottom of guiding groove, until guiding groove is filled, then cylinder extends, quantitative powder guide rod pushes and separates blanking plate from bracket, to discharge powder in guiding groove, wherein the volume of guiding groove is the weight of powder discharged at one time, to discharge powder quantitatively, to adapt to large batch pharmaceutical test operation, improve the precision of test.

Description

Technical Field

[0001] This utility model relates to the field of distribution device technology, and more specifically to a powder quantitative distribution device. Background Technology

[0002] In the process of pharmaceutical research and development or preparation, it is often necessary to mix two or more powders to form a compound drug that can provide treatment for complex diseases or multiple symptoms. The applicability of the final drug requires repeated testing. During the test, it is often necessary to manually take a measuring cup and add the appropriate amount of powder into the container for mixing. However, in large-scale experiments, if the powder in the measuring cup is added manually and causes tilting, the powder mixing ratio will change, which will affect the accuracy of the pharmaceutical test. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned problems in existing technologies.

[0004] To achieve the above objectives, this utility model can be implemented through the following technical solution: a powder quantitative distribution device, comprising:

[0005] A support frame, on which a powder cylinder is attached, and the powder cylinder has a receiving cavity inside;

[0006] A cylinder, which is mounted on the bracket, with its output end facing the receiving cavity;

[0007] A quantitative addition unit is provided on the support. The quantitative addition unit includes a quantitative powder guide rod provided at the output end of the cylinder, and a guide groove is provided on the quantitative powder guide rod.

[0008] A feeding plate is disposed on the support, and a spring is provided between the feeding plate and the support;

[0009] The cylinder retracts to connect the guide groove to the receiving cavity, and extends to control the metering powder guide rod to push the feeding plate away from the support.

[0010] In this embodiment of the utility model, the output end of the cylinder is rotatably provided with a push rod, and one end of the quantitative powder guiding rod is rotatably provided with an adjusting ring that is threadedly engaged with the push rod;

[0011] The support is equipped with a transmission unit, which cooperates with the quantitative powder feeding rod.

[0012] In this embodiment of the utility model, the transmission unit includes a driven wheel, a motor, and a driving wheel disposed at the output end of the motor, and a synchronous belt is disposed between the driving wheel and the driven wheel;

[0013] A transmission sleeve that engages with the quantitative powder-drawing rod is provided at the shaft center of the drive wheel.

[0014] In this embodiment of the utility model, a support ring is provided on the top rod, and a guide frame is attached to the support ring in a circumferential array.

[0015] In this embodiment of the invention, a pressure sensor is provided in the guide groove, and the number of guide grooves is consistent with the number of pressure sensors.

[0016] In this embodiment of the utility model, a support cover is provided on the bracket, a bottom cover is provided on the support cover, and the material feeding plate is provided on the bottom cover.

[0017] In this embodiment of the utility model, the feeding plate is provided with a conical part that fits against the bottom cover, and the feeding plate is provided with an arc-shaped feeding port, which is located at the bottom corner of the conical part.

[0018] In this embodiment of the utility model, a feed inlet is provided on one side of the powder cylinder.

[0019] In this embodiment of the utility model, a sealing element is provided between the powder cylinder and the support.

[0020] In this embodiment of the invention, a conical block is provided inside the powder cylinder, and the conical block cooperates with the quantitative addition unit.

[0021] Compared with the prior art, the advantages of this application are as follows: the powder is guided into the powder cylinder along the feed inlet. At this time, the cylinder operates to control the quantitative powder guide rod to slide vertically on the support. When the cylinder retracts, the guide groove is connected to the receiving cavity. Under the action of gravity, the powder will be guided to the bottom of the guide groove until the guide groove is filled. Then the cylinder extends, and the quantitative powder guide rod pushes the feed plate to separate from the support, so as to discharge the powder in the guide groove. The volume of the guide groove is the weight of the powder discharged at one time, so as to quantitatively discharge the powder, thereby adapting to large-scale pharmaceutical test operations and improving the accuracy of the test. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure after the components are assembled.

[0023] Figure 2 This is a schematic diagram of the internal structure of the bottom part of the bracket after disassembly;

[0024] Figure 3 It is a schematic diagram of the assembly structure of the parts in the quantitative addition unit;

[0025] Figure 4 It is a partial sectional plan view of the whole.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Bracket; 11. Support cover; 12. Bottom cover; 2. Transmission unit; 21. Motor; 22. Synchronous belt; 23. Drive wheel; 24. Driven wheel; 25. Transmission sleeve; 3. Feeding plate; 31. Arc-shaped feeding port; 32. Boss; 33. Spring; 34. Conical part; 4. Powder cylinder; 41. Feed inlet; 42. Conical block; 5. Cylinder; 6. Quantitative addition unit; 61. Rotating sleeve; 62. Support ring; 63. Guide frame; 64. Top rod; 65. Adjusting ring; 66. Quantitative powder guide rod; 660. Discharge chute; 661. Pressure sensor; 662. Guide chute. Detailed Implementation

[0028] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0029] like Figure 1-4 As shown, a powder dispensing device includes:

[0030] Support 1, with powder cylinder 4 clamped onto support 1, and a receiving cavity opened inside powder cylinder 4;

[0031] Cylinder 5 is mounted on bracket 1, with the output end of cylinder 5 facing the receiving cavity.

[0032] The quantitative addition unit 6 is mounted on the support 1. The quantitative addition unit 6 includes a quantitative powder guide rod 66 mounted on the output end of the cylinder 5. The quantitative powder guide rod 66 is provided with a guide groove 662.

[0033] A feeding plate 3 is mounted on a support 1, and a spring 33 is provided between the feeding plate 3 and the support 1.

[0034] The cylinder 5 retracts to control the guide groove 662 to connect with the receiving cavity, and the cylinder 5 extends to control the quantitative powder guiding rod 66 to push the feeding plate 3 away from the support 1.

[0035] Specifically, the support 1 supports the cylinder 5, the transmission unit 2, and the metering addition unit 6. When a large batch of powder needs to be metered, the powder is poured into the receiving cavity of the powder cylinder 4. Then the cylinder 5 retracts, and the metering powder guide rod 66 slides upward to connect the guide groove 662 with the receiving cavity. At this time, the powder enters the guide groove 662 under the action of gravity until the powder fills the guide groove 662. Then the cylinder 5 extends, and the guide groove 662 is in a non-connected state with the receiving cavity. The metering powder guide rod 66 pushes the feeding plate 3 to separate the feeding plate 3 from the bottom cover 12, so as to guide the powder in the guide groove 662 out meteredly. At least two sets of guide grooves 662 are provided. The guide grooves 662 are distributed in a ring around the central axis of the metering powder guide rod 66 to improve the guiding and sliding effect of the powder. At the same time, the sum of the volumes of multiple guide grooves 662 is the weight of the powder discharged at one time.

[0036] As a further embodiment provided in this utility model, a push rod 64 is rotatably provided at the output end of the cylinder 5, and an adjusting ring 65 threadedly engaged with the push rod 64 is rotatably provided at one end of the metering powder guiding rod 66. A transmission unit 2 is provided on the bracket 1, and the transmission unit 2 cooperates with the metering powder guiding rod 66. When the adjusting ring 65 is rotated, the metering powder guiding rod 66 will slide along the push rod 64. If it slides towards the cylinder 5, the volume of the guide groove 662 will increase; if it slides away from the cylinder 5, the volume of the guide groove 662 will decrease. The volume of the guide groove 662 is adjusted by rotating the adjusting ring 65. The quantitative powder feeding rod 66 is provided with a discharge groove 660. The guide groove 662 is connected to the receiving cavity through the discharge groove 660 to avoid the quantitative powder feeding rod 66 from getting stuck due to excessive powder in the guide groove 662. When there is excess powder in the guide groove 662, it will flow back into the receiving cavity along the discharge groove 660. The discharge groove 660 is designed with a narrow opening and will only open when squeezed. Under normal conditions, the powder will be stuck in the discharge groove 660.

[0037] As a further embodiment of this utility model, the transmission unit 2 includes a driven wheel 24, a motor 21, and a driving wheel 23 disposed at the output end of the motor 21. A synchronous belt 22 is disposed between the driving wheel 23 and the driven wheel 24. A transmission sleeve 25 is disposed at the shaft of the driving wheel 23 to engage with the quantitative powder guiding rod 66. The model of the motor 21 is MHMF042L1U4-1116. The motor 21 serves as the power source. The number of teeth of the driving wheel 23 is less than the number of teeth of the driven wheel 24 to perform deceleration. When the motor 21 is running, it controls the rotation of the driving wheel 23. The driven wheel 24 rotates synchronously with the driving wheel 23 through the synchronous belt 22, thereby causing the quantitative powder guiding rod 66 and the top rod 64 to rotate synchronously. At this time, the guide frame 63 continuously scrapes the powder so that the powder falls into the guide groove 662 under the action of gravity until the guide groove 662 is filled.

[0038] As a further embodiment provided by this utility model, a support ring 62 is provided on the push rod 64, and a guide frame 63 is attached to the support ring 62 in a circumferential array. The guide frame 63 is connected to the push rod 64 through the support ring 62, so that when the push rod 64 rotates, the guide frame 63 will rotate synchronously with the push rod 64. A rotating sleeve 61 is provided between the push rod 64 and the output shaft of the cylinder 5, and the push rod 64 can rotate on the rotating sleeve 61. Furthermore, at least two sets of guide frames 63 are provided.

[0039] As a further embodiment of this utility model, a pressure sensor 661 is provided in the guide groove 662, and the number of guide grooves 662 is the same as the number of pressure sensors 661. The model of the pressure sensor is SPTMA0005PG5W02. When the cylinder 5 extends, there is powder in the guide groove 662. If the powder in the guide groove 662 is not filled enough, the pressure on the pressure sensor 661 will not reach the required level, which means that the weight of the powder has not met the distribution requirements. At this time, the cylinder 5 will retract and continue to guide the powder into the guide groove 662 until the pressure on the pressure sensor 661 reaches the required level.

[0040] As a further embodiment of this utility model, a support cover 11 is provided on the bracket 1, a bottom cover 12 is provided on the support cover 11, a feed plate 3 is provided on the bottom cover 12, and the support sleeve is fixed to the bracket 1 by bolts, which protects the driven wheel 24 and supports the bottom cover 12 and the parts assembled on the bottom cover 12.

[0041] As a further embodiment of this utility model, the feeding plate 3 is provided with a conical part 34 that fits against the bottom cover 12. The feeding plate 3 is provided with an arc-shaped feeding port 31, which is located at the bottom corner of the conical part 34. When the cylinder 5 retracts, the bottom cover 12 is pulled back by the spring 33 and fits against the bottom cover 12, that is, the conical part 34 fits against the bottom cover 12. The conical part 34 plays a certain guiding role and improves the sealing between the feeding plate 3 and the bottom cover 12. When the cylinder 5 extends, the feeding plate 3 separates from the bottom cover 12, and the powder is discharged from the arc-shaped feeding port 31 along the conical part 34. The end of the feeding plate 3 is provided with a boss 32, which abuts against the quantitative powder guiding rod 66. When the quantitative powder guiding rod 66 slides downward, it will abut against the boss 32 to push the feeding plate 3 away from the bottom cover 12.

[0042] As a further embodiment of this utility model, a feed inlet 41 is provided on one side of the powder cylinder 4. The feed inlet 41 can be connected to an external feed pipe. When the powder in the cylinder decreases, the powder can be added to the cylinder in real time through the feed pipe.

[0043] As a further embodiment of this utility model, a sealing element is provided between the powder cylinder 4 and the support 1. The sealing element can be a rubber sealing ring. The sealing element improves the sealing performance between the powder cylinder 4 and the support 1, and also improves the firmness of the powder cylinder 4 and the support 1.

[0044] As a further embodiment of this utility model, a conical block 42 is provided inside the powder cylinder 4, and the conical block 42 cooperates with the quantitative addition unit 6, such as... Figure 4 As shown, when the metering guide rod rotates, the guide frame 63 rotates synchronously with the top rod 64. Under the push of the guide frame 63 and the guidance of the conical block 42, the powder flows into the guide groove 662 to reduce the phenomenon of powder sticking to the wall.

[0045] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0046] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A powder dispensing device, characterized in that, include: A support frame, on which a powder cylinder is attached, and the powder cylinder has a receiving cavity inside; A cylinder, which is mounted on the bracket, with its output end facing the receiving cavity; A quantitative addition unit is provided on the support. The quantitative addition unit includes a quantitative powder guide rod provided at the output end of the cylinder, and a guide groove is provided on the quantitative powder guide rod. A feeding plate is disposed on the support, and a spring is provided between the feeding plate and the support; The cylinder retracts to connect the guide groove to the receiving cavity, and extends to control the metering powder guide rod to push the feeding plate away from the support.

2. The powder dispensing device according to claim 1, characterized in that, The cylinder has a push rod rotatably mounted at its output end, and one end of the metering powder guide rod has an adjusting ring that is threadedly engaged with the push rod. The support is equipped with a transmission unit, which cooperates with the quantitative powder feeding rod.

3. The powder dispensing device according to claim 2, characterized in that, The transmission unit includes a driven wheel, a motor, and a driving wheel disposed at the output end of the motor. A synchronous belt is provided between the driving wheel and the driven wheel. A transmission sleeve that engages with the quantitative powder-drawing rod is provided at the shaft center of the drive wheel.

4. A powder dispensing device according to claim 2, characterized in that, The top rod is provided with a support ring, and the support ring is fitted with guide frames in a circumferential array.

5. A powder dispensing device according to claim 1, characterized in that, A pressure sensor is installed in the guide groove, and the number of guide grooves is the same as the number of pressure sensors.

6. A powder metering device according to claim 1, characterized in that, The bracket is provided with a support cover, the support cover is provided with a bottom cover, and the material feeding plate is provided on the bottom cover.

7. A powder dispensing device according to claim 6, characterized in that, The feeding plate is provided with a conical part that fits into the bottom cover, and the feeding plate has an arc-shaped feeding port located at the bottom corner of the conical part.

8. A powder dispensing device according to claim 1, characterized in that, A feed inlet is provided on one side of the powder cylinder.

9. A powder dispensing device according to claim 1, characterized in that, A sealing element is provided between the powder cylinder and the support.

10. A powder dispensing device according to claim 1, characterized in that, A conical block is provided inside the powder cylinder, and the conical block cooperates with the quantitative addition unit.

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