Medicine grade screening machine

Abstract

The medicine grade screening machine comprises a screening tank body, a filter screen assembly and a material connector, the filter screen assembly is installed in the screening tank body, a discharging port is formed in one side of the end face of the filter screen assembly, and the material connector is fixed to the screening tank body. The feeding end and the discharging end of the material connector are located under the discharging port and outside the screening tank body respectively, the inner caliber of the feeding end of the material connector is larger than the caliber of the discharging port, and an elastic sealing piece abutting against the bottom face of the filter screen assembly is positioned and placed at the feeding end of the material connector. The medicine grade screening machine provided by the utility model can be used for carrying out final screening on medicines, and the risk of material leakage and residue during material collection is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to a pharmaceutical grade screening machine. Background Art

[0002] After drug particles are produced, they vary in size. Screening equipment is required to separate these particles into smaller and larger sizes. The final fine screening process, after separating the coarse and fine particles, is particularly valuable and important.

[0003] However, the material joint structure of the current drug screening machine has defects, such as Figure 1 The figure shows a conventional installation method for a material connector of a pharmaceutical grade screening machine. The material connector a is provided with a sealing ring b on the outer cover, and the material connector a is inserted into the discharge port d on the filter assembly c. This installation method is prone to the following defects:

[0004] (1) There is a certain gap in the horizontal direction between the discharge connector a and the discharge port d of the filter assembly c, which may cause the problem of material residue;

[0005] (2) The sealing ring b installed on the discharge joint a is easily squeezed and deformed, which may cause it to loosen and fall off, resulting in the risk of material leakage;

[0006] (3) Due to the processing error, the height of the discharge joint a is higher than the height of the discharge port d. The height difference may cause some materials to be stuck and unable to come out, resulting in material residue.

[0007] Based on this, the present application proposes a pharmaceutical grade screening machine to solve the above-mentioned problems. Utility Model Content

[0008] The purpose of the utility model is to provide a drug grading screening machine to perform final screening on drug particles and reduce the risk of material leakage and residue during material collection.

[0009] In order to solve the above technical problems, the utility model provides a pharmaceutical-grade screening machine, including a screening tank body, a filter screen assembly and a material joint. The filter screen assembly is installed in the screening tank body, and a discharge port is provided on one side of the end face of the filter screen assembly. The material joint is fixed on the screening tank body, and the feed end and discharge end of the material joint are respectively located directly below the discharge port and outside the screening tank body. The inner diameter of the feed end of the material joint is larger than the diameter of the discharge port, and the feed end of the material joint is positioned with an elastic seal that conflicts with the bottom surface of the filter screen assembly.

[0010] Furthermore, a placement groove is provided on the end surface of the feed end of the material joint, and the elastic sealing component is positioned and placed in the placement groove.

[0011] Furthermore, the elastic sealing member is an O-ring.

[0012] Furthermore, the cross-section of the placement groove is an isosceles trapezoid.

[0013] Furthermore, the screening tank body includes a matching upper tank body and a lower tank body, the upper tank body and the lower tank body are detachably connected, and the inner side walls of the opening ends of the upper tank body and the lower tank body are provided with installation grooves, and the filter screen assembly is clamped and placed in the installation grooves.

[0014] Furthermore, the outer side walls of the opening ends of the upper tank body and the lower tank body are both provided with fixing flanges, and the end faces of the fixing flanges are provided with fixing grooves.

[0015] Furthermore, the filter assembly includes a mounting flange, a filter and a sealing ring. The filter is mounted on the inner side of the mounting flange. The sealing ring has a U-shaped cross section and is sleeved on the outer side wall of the mounting flange.

[0016] Furthermore, it also includes an automatic blocking component, which is used to realize automatic opening and sealing of the discharge port.

[0017] Furthermore, the blocking assembly includes a plug and a lifting cylinder, the plug is located directly above the discharge port, and the plug is connected to the lifting cylinder, and the lifting cylinder is fixed on the screening tank body.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] The pharmaceutical grade screening machine provided by the present invention can perform final screening of pharmaceuticals through the setting of the filter assembly. The screened material enters the material joint through the discharge port on the filter assembly to be discharged from the screening tank for collection. The feed end of the material joint is located below the discharge port, and the inner diameter of the material joint feed end is larger than the diameter of the discharge port, which effectively avoids the problem of material being stuck at the discharge port. At the same time, the elastic seal is located between the filter assembly and the material joint, and is positioned and installed on the material joint, which can effectively avoid the elastic seal from being squeezed and deformed and falling off, thereby reducing the risk of material leakage and residue during material collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation of a material joint in a pharmaceutical screening machine in the prior art;

[0021] Figure 2 This is a schematic diagram of the structure of the pharmaceutical grade screening machine of the utility model;

[0022] Figure 3This is the utility model of the pharmaceutical grade screening machine Figure 2 A magnified view of the structure in the middle. DETAILED DESCRIPTION

[0023] The pharmaceutical grade screening machine of the present invention will be described in more detail below with reference to schematic diagrams, which illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art may modify the present invention described herein while still achieving the beneficial effects of the present invention. Therefore, the following description should be understood as a general guide for those skilled in the art and not as a limitation of the present invention.

[0024] The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0025] like Figure 2 and Figure 3 As shown, the utility model proposes a pharmaceutical-grade screening machine, comprising a screening tank body 1, a filter screen assembly 2 and a material connector 3. The filter screen assembly 2 is installed in the screening tank body 1, and a discharge port is provided on one side of the end face of the filter screen assembly 2. The material connector 3 is fixed on the screening tank body 1, and the feed end and the discharge end of the material connector 3 are respectively located directly below the discharge port and outside the screening tank body 1. The inner diameter of the feed end of the material connector 3 is larger than the diameter of the discharge port, and an elastic seal 4 that conflicts with the bottom surface of the filter screen assembly 2 is positioned at the feed end of the material connector 3.

[0026] During the final screening of the drugs, the discharge port is sealed, and the drugs are fed into the screening tank 1 from the feed port at the top of the screening tank 1. The filter assembly 2 performs a final filtration on the incoming drugs to obtain the final required materials, thereby achieving the final screening of the drugs.

[0027] After the final screening of the drugs is completed, the obtained materials need to be collected, the discharge port is opened, and the materials are discharged from the screening tank through the discharge port into the material connector 3. A collection device is connected to the discharge end of the material connector 3 to collect the materials.

[0028] In the above implementation process, the discharge port is sealed by an automatic plugging assembly 5, which includes a plug 51 and a lifting cylinder 52. The plug 51 is located directly above the discharge port and is connected to the lifting cylinder 52, which is fixed to the screening tank body 1. By driving the lifting cylinder 52, the plug 51 can be driven to move closer to or away from the discharge port, thereby achieving automatic sealing and opening of the discharge port.

[0029] Since the feed end of the material connector 3 is located below the discharge port, and the inner diameter of the feed end of the material connector 3 is larger than the diameter of the discharge port, the situation where the end height of the material connector 3 is greater than the height of the discharge port will not occur, and the problem of a large gap in the horizontal direction between the discharge connector 3 and the discharge port of the filter assembly 2 is solved, thereby effectively avoiding the situation where materials are stuck.

[0030] The elastic seal 4 is located between the filter assembly 2 and the material joint 3, so there will be no situation where the elastic seal 4 needs to be squeezed to close the discharge port, thereby reducing the probability of deformation of the elastic seal 4. Furthermore, the elastic seal 4 is positioned and placed on the material joint 3 and will not easily fall off the material joint 3.

[0031] In summary, the pharmaceutical grade screening machine proposed in this embodiment reduces the risk of material leakage and residue during material collection.

[0032] In a specific embodiment, a placement groove 31 is provided on the feed end surface of the material connector 3 , and the elastic sealing member 4 is positioned and placed in the placement groove.

[0033] Specifically, in order to improve the stability of the positioning of the elastic sealing member 4, the cross section of the placement groove 31 is designed to be an isosceles trapezoid.

[0034] Preferably, the elastic seal 4 is an O-ring. The O-ring is a bidirectional sealing element. During installation, the initial radial or axial compression of the O-ring determines its initial sealing ability. The force generated by the system pressure acting on the O-ring is its total sealing force. This sealing force increases with increasing system pressure. Under pressure, the shape of the O-ring resembles a liquid with high surface tension, and pressure is transmitted equally in all directions. It has the advantages of being small in size, easy to assemble and disassemble, usable for both dynamic and static sealing, virtually leak-free static sealing, single-piece bidirectional sealing, low dynamic friction, and low price.

[0035] In a specific embodiment, the screening tank body 1 includes a matching upper tank body 11 and a lower tank body 12, the upper tank body 11 and the lower tank body 12 are detachably connected, and the inner side walls of the open ends of the upper tank body 11 and the lower tank body 12 are provided with installation grooves, and the filter screen assembly 2 is clamped and placed in the installation grooves.

[0036] The screening tank body 1 adopts a detachable split structure, which is convenient for maintenance and cleaning of the interior.

[0037] Furthermore, the outer side walls of the opening ends of the upper tank body 11 and the lower tank body 12 are both provided with fixing flanges 13, and the end faces of the fixing flanges 13 are provided with fixing grooves. By setting the fixing grooves and using a clamp, a stable connection between the upper tank body and the lower tank body can be achieved.

[0038] In a specific embodiment, the filter assembly 2 includes a mounting flange 21, a filter 22 and a sealing ring 23. The filter 22 is mounted on the inner side of the mounting flange 21. The sealing ring 23 has a "U"-shaped cross-section and is sleeved on the outer wall of the mounting flange 21.

[0039] The sealing ring 23 with a U-shaped cross section ensures the sealing between the side wall of the filter assembly 2 and the side wall of the screening tank 1 after installation.

[0040] In summary, the present invention has at least the following advantages over the prior art:

[0041] The pharmaceutical grade screening machine provided by the present invention can perform final screening of pharmaceuticals through the setting of the filter assembly. The screened material enters the material joint through the discharge port on the filter assembly to be discharged from the screening tank for collection. The feed end of the material joint is located below the discharge port, and the inner diameter of the material joint feed end is larger than the diameter of the discharge port, which effectively avoids the problem of material being stuck at the discharge port. At the same time, the elastic seal is located between the filter assembly and the material joint, and is positioned and installed on the material joint, which can effectively avoid the elastic seal from being squeezed and deformed and falling off, thereby reducing the risk of material leakage and residue during material collection.

[0042] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A pharmaceutical grade screening machine, characterized in that: Including screening tank, filter assembly and material connector; The filter assembly is installed in the screening tank, and a discharge port is provided on one side of the end surface of the filter assembly; The material connector is fixed on the screening tank body, and the feed end and the discharge end of the material connector are respectively located directly below the discharge port and outside the screening tank body; The inner diameter of the material joint feed end is larger than the diameter of the discharge port, and an elastic sealing member that contacts the bottom surface of the filter assembly is positioned and placed on the material joint feed end.

2. The pharmaceutical grade screening machine according to claim 1, characterized in that: The feed end surface of the material joint is provided with a placement groove, and the elastic sealing component is positioned and placed in the placement groove.

3. The pharmaceutical grade screening machine according to claim 2, characterized in that: The elastic sealing member is an O-ring.

4. The pharmaceutical grade screening machine as claimed in claim 2, characterized in that: The cross section of the placement groove is an isosceles trapezoid.

5. The pharmaceutical grade screening machine according to claim 1, characterized in that: The screening tank body includes a matching upper tank body and a lower tank body; The upper tank body and the lower tank body are detachably connected, and the inner side walls of the opening ends of the upper tank body and the lower tank body are both provided with mounting grooves, and the filter screen assembly is clamped and placed in the mounting grooves.

6. The pharmaceutical grade screening machine according to claim 5, characterized in that: The outer side walls of the opening ends of the upper tank body and the lower tank body are both provided with fixing flanges, and the end faces of the fixing flanges are provided with fixing grooves and clamping grooves.

7. The pharmaceutical grade screening machine according to claim 5, characterized in that: The filter assembly includes a mounting flange, a filter and a sealing ring; The filter screen is installed on the inner side of the mounting flange, the sealing ring has a "U"-shaped cross section, and the sealing ring is sleeved on the outer side wall of the mounting flange.

8. The pharmaceutical grade screening machine according to claim 1, wherein: It also includes an automatic blocking component, which is used to realize automatic opening and sealing of the discharge port.

9. The pharmaceutical grade screening machine according to claim 8, characterized in that: The blocking assembly includes a plug and a lifting cylinder; The plug is located directly above the discharge port, and the plug is connected to the lifting cylinder; The lifting cylinder is fixed on the screening tank body.

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