Slurry adding mechanism of wet mixing granulator

Abstract

The utility model discloses a slurry adding mechanism of a wet mixing granulator, which comprises a slurry adding cylinder, the interior of the slurry adding cylinder is designed into a hollow structure, a sealing plunger is movably connected to the interior of the slurry adding cylinder, a step surface is arranged at the top end of the slurry adding cylinder, and a plurality of uniformly distributed upper support columns are fixedly mounted on the step surface; a fixed upper plate is fixedly installed among the top ends of the upper supporting columns, a pneumatic cylinder is fixedly installed in the center of the upper surface of the fixed upper plate, the output end of the pneumatic cylinder is movably and telescopically connected with a pneumatic rod, and the bottom end of the pneumatic rod is fixedly connected with the upper surface of the sealing plunger. The structure is designed similar to a needle tube type slurry adding structure, the structure principle is simple, using is convenient, manufacturing and maintaining cost is low, using and maintaining cost is low, the good using effect is achieved, meanwhile, a pneumatic driving mode is adopted in slurry adding work for plunger type downward pressing slurry injection, automatic slurry adding treatment can be completed, and the slurry adding efficiency is improved. Manual slurry adding operation is not needed, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of drug granulation, in particular to a slurry adding mechanism of a wet mixing granulator. Background Art

[0002] In the pharmaceutical preparation process, different processing equipment is required to process the drug according to the form of the drug to be prepared. For example, there are many ways to granulate the drug, and wet granulation is one of them.

[0003] At present, wet granulation machines need to add adhesives, also known as slurry, when granulating. The slurry adding mechanisms of existing wet mixing granulators mostly use vacuum feeding to add slurry. However, the existing slurry adding mechanisms have complex structures and high manufacturing costs. A small number of slurry adding devices with simple structures have the problem of insufficient slurry adding accuracy, and are prone to over-addition or under-addition. Utility Model Content

[0004] The purpose of the utility model is to provide a slurry adding mechanism for a wet mixing granulator to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a slurry adding mechanism of a wet mixing granulator, comprising a slurry adding barrel, the interior of the slurry adding barrel being a hollow structure, a sealing plunger being movably connected to the interior of the slurry adding barrel, a step surface being provided at the top of the slurry adding barrel, a plurality of evenly distributed upper pillars being fixedly mounted on the step surface, a fixed upper plate being fixedly mounted between the tops of the plurality of upper pillars, a pneumatic cylinder being fixedly mounted at the center position of the upper surface of the fixed upper plate, an output end of the pneumatic cylinder being movably and telescopically connected to a pneumatic rod, and the bottom end of the pneumatic rod being fixedly connected to the upper surface of the sealing plunger.

[0006] Preferably, a slurry adding valve is fixedly mounted on the outer wall of one side of the bottom end of the slurry adding cylinder, the slurry adding valve is a one-way valve, and a slurry adding pipeline is fixedly mounted on the slurry adding valve.

[0007] Preferably, an air valve is fixedly mounted on the outer wall on the other side of the bottom end of the slurry adding cylinder.

[0008] Preferably, a lower fixing seat is fixedly mounted on the outer wall of the bottom end of the slurry adding cylinder.

[0009] Preferably, a conical head is fixedly connected to the bottom end of the slurry adding cylinder, the conical head and the slurry adding cylinder are interconnected, and a slurry adding pipe is fixedly installed at the bottom end of the conical head.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The slurry adding structure of the utility model is designed similarly to the needle-tube type slurry adding structure, and has a simple structural principle, is easy to use, has low manufacturing and maintenance costs, and has a good use effect;

[0012] At the same time, the slurry adding work adopts pneumatic drive mode to perform plunger-type downward pressure slurrying, so as to complete the automatic slurry adding process, without the need for manual slurry adding operation, the structure is easy to use, and the amount of slurry added can be dynamically controlled by controlling the extension distance of the pneumatic rod, which can effectively control the injection amount of slurry and improve the slurrying accuracy, thereby effectively improving the ratio of the use of the granulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the slurry adding mechanism according to an embodiment of the present utility model;

[0014] Figure 2 This is a bottom bottom structural schematic diagram of the slurry adding mechanism according to an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the slurry adding barrel according to an embodiment of the present utility model.

[0016] In the figure: 1. Slurry feeding cylinder; 2. Sealing plunger; 3. Step surface; 4. Upper support; 5. Fixed upper plate; 6. Pneumatic cylinder; 7. Pneumatic rod; 8. Conical head; 9. Slurry feeding valve; 10. Lower fixing seat; 11. Slurry feeding pipe; 12. Air valve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean 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 an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] See also Figure 1-3 The utility model provides an embodiment: a slurry adding mechanism of a wet mixing granulator, comprising a slurry adding barrel 1, the interior of the slurry adding barrel 1 is a hollow structure design, a sealing plunger 2 is movably connected to the interior of the slurry adding barrel 1, a step surface 3 is provided on the top of the slurry adding barrel 1, a plurality of evenly distributed upper pillars 4 are fixedly mounted on the step surface 3, a fixed upper plate 5 is fixedly mounted between the tops of the plurality of upper pillars 4, a pneumatic cylinder 6 is fixedly mounted at the center position of the upper surface of the fixed upper plate 5, an output end of the pneumatic cylinder 6 is movably telescopically connected to a pneumatic rod 7, and the bottom end of the pneumatic rod 7 is fixedly connected to the upper surface of the sealing plunger 2;

[0021] According to the above structure, the pneumatic cylinder 6 can drive the pneumatic rod 7 to extend or retract. When the pneumatic rod 7 is extended, the pneumatic rod 7 pushes the sealing plunger 2 at the bottom, causing the sealing plunger 2 to move downward, thereby injecting the slurry inside the slurry feeding tube 1 into the granulator.

[0022] When the sealing plug 2 rises under the drive of the gas pressure rod 7, the slurry feeding tube 1 performs the adsorption feeding work;

[0023] This structure is designed similar to the needle-tube slurry adding structure, and its structural principle is simple, easy to use, low in manufacturing and maintenance costs, and has good use effect;

[0024] The amount of slurry added can be dynamically controlled by controlling the extension distance of the air pressure rod 7, which can effectively control the injection amount of the slurry and improve the slurry injection accuracy, thereby effectively improving the ratio of the granulator and making it easy to use.

[0025] Among them, in order to facilitate the slurry inside the slurry feeding cylinder 1 to enter the granulator, the bottom end of the slurry feeding cylinder 1 is fixedly connected with a conical head 8, and the conical head 8 is interconnected with the slurry feeding cylinder 1. The bottom end of the conical head 8 is fixedly installed with a slurry feeding pipe 11. The slurry feeding pipe 11 can be designed with a hose structure, so that it can be inserted into the slurry feeding area of ​​the granulator through the slurry feeding pipe 11, thereby facilitating the slurry feeding work;

[0026] Furthermore, in order to ensure the normal pumping and slurrying work of the slurry adding cylinder 1, a slurry adding valve 9 is fixedly installed on the outer wall of one side of the bottom end of the slurry adding cylinder 1. The slurry adding valve 9 is a one-way valve. A slurry adding pipe is fixedly installed on the slurry adding valve 9. When the slurry adding pipe is actually used, its tail end can be connected to a slurry delivery pump, so that the slurry is delivered to the inside of the slurry adding cylinder 1 through the slurry adding valve 9 by the slurry pump.

[0027] With this structural design, when the sealing plunger 2 moves from bottom to top under the action of the pneumatic cylinder 6 and the pneumatic rod 7, the slurry adding valve 9 is opened. In this way, during the upward movement of the sealing plunger 2, the slurry inside the slurry adding valve 9 can enter the slurry adding cylinder 1, completing the slurry injection work;

[0028] When the sealing plug 2 moves downward, the slurry adding valve 9 is closed, so that the slurry inside the slurry adding cylinder 1 can be injected into the granulator through the slurry adding pipe 11 at the bottom end, completing the slurry adding work of the mixing granulator;

[0029] Furthermore, an air valve 12 is fixedly mounted on the outer wall of the other side of the bottom end of the slurry feeding cylinder 1;

[0030] The air valve 12 can be used to discharge the air inside the slurry feeding drum 1 when necessary, and is in a normally closed state when not in use.

[0031] In this embodiment, in order to install the bottom of the slurry adding cylinder 1, a lower fixing seat 10 is fixedly installed on the outer wall of the bottom end of the slurry adding cylinder 1, so that the utility model can be installed as a whole on the outside of the pelletizer through the provided lower fixing seat 10 by bolts, and the slurry adding pipe 11 is inserted into the slurry adding chamber of the pelletizer.

[0032] Working principle: When in use, the slurry adding mechanism of the present invention is fixedly installed on the slurry adding working area of ​​the pelletizer through the lower fixing seat 10 and bolts, thereby completing the fixed installation work of the utility model;

[0033] After the installation is completed, the slurry adding valve 9 is connected to the slurry delivery pump through the slurry adding pipe, so that the slurry is delivered to the inside of the slurry adding cylinder 1 through the slurry adding valve 9 by the slurry pump, and the slurry adding pipe 11 at the bottom end is inserted into the slurry adding cavity of the granulator;

[0034] During specific use, the pneumatic cylinder 6 can drive the pneumatic rod 7 to extend or retract. When the pneumatic rod 7 is extended, the pneumatic rod 7 pushes the sealing plunger 2 at the bottom, causing the sealing plunger 2 to move downward, so that the slurry inside the slurry feeding tube 1 can be injected into the granulator through the slurry feeding pipe 8, thereby completing the automatic slurry feeding work of the granulator;

[0035] The amount of slurry added in the present invention can be dynamically controlled by controlling the extension distance of the air pressure rod 7, thereby effectively controlling the injection amount of the slurry and improving the slurry injection accuracy, thereby effectively improving the ratio of the granulator and making it easy to use.

[0036] When it is necessary to inject slurry into the slurry barrel 1, the pneumatic rod 7 can drive the sealing plug 2 to move upward from bottom to top under the drive of the pneumatic cylinder 6. At this time, the slurry adding valve 9 is opened. In the process of the sealing plug 2 moving upward, the slurry inside the pipeline can enter the slurry adding barrel 1 through the slurry adding valve 9, completing the slurry injection work.

[0037] According to the above description, the slurry adding mechanism of the present invention is designed similarly to the needle-tube type slurry adding structure, and has a simple structural principle, is easy to use, has low manufacturing and maintenance costs, and has a good use effect;

[0038] At the same time, the slurry adding work adopts a pneumatic drive mode to perform plunger-type downward pressure slurrying, so that the automatic slurry adding process can be completed without manual slurry adding operation, and the amount of slurry added can be dynamically controlled by controlling the extension distance of the pneumatic rod 7, which can effectively control the injection amount of the slurry and improve the slurrying accuracy, thereby effectively improving the proportioning effect of the granulator and having high slurrying accuracy.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A slurry feeding mechanism of a wet mixing granulator, comprising a slurry feeding cylinder (1), characterized in that: The interior of the slurry adding cylinder (1) is designed as a hollow structure. The interior of the slurry adding cylinder (1) is movably connected to a sealing plunger (2). The top of the slurry adding cylinder (1) is provided with a step surface (3). A plurality of evenly distributed upper pillars (4) are fixedly installed on the step surface (3). A fixed upper plate (5) is fixedly installed between the tops of the plurality of upper pillars (4). A pneumatic cylinder (6) is fixedly installed at the center position of the upper surface of the fixed upper plate (5). The output end of the pneumatic cylinder (6) is movably telescopically connected to a pneumatic rod (7). The bottom end of the pneumatic rod (7) is fixedly connected to the upper surface of the sealing plunger (2).

2. The slurry adding mechanism of the wet mixing granulator according to claim 1, characterized in that: A slurry adding valve (9) is fixedly mounted on the outer wall of one side of the bottom end of the slurry adding cylinder (1). The slurry adding valve (9) is a one-way valve, and a slurry adding pipeline is fixedly mounted on the slurry adding valve (9).

3. The slurry adding mechanism of the wet mixing granulator according to claim 1, characterized in that: An air valve (12) is fixedly mounted on the outer wall of the other side of the bottom end of the slurry adding cylinder (1).

4. The slurry adding mechanism of the wet mixing granulator according to claim 1, characterized in that: A lower fixing seat (10) is fixedly mounted on the outer wall of the bottom end of the slurry adding cylinder (1).

5. The slurry adding mechanism of the wet mixing granulator according to claim 1, characterized in that: The bottom end of the slurry adding cylinder (1) is fixedly connected with a conical head (8), the conical head (8) and the slurry adding cylinder (1) are interconnected, and the bottom end of the conical head (8) is fixedly installed with a slurry adding pipe (11).

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