Blockage-preventing vacuum feeding machine for pharmaceutical production

Abstract

The utility model discloses a medicine production vacuum feeding machine capable of avoiding blocking, and relates to the field of vacuum feeding machines, the medicine production vacuum feeding machine comprises a shell and a vacuum exhaust pipe installed at the upper end of the shell, a vacuum pump is arranged at the lower end of the vacuum exhaust pipe, and an electronic discharge port is installed at the lower end of the shell. According to the medicine production vacuum feeding machine capable of avoiding blockage, when air in the shell is extracted, air penetrates through a wind wheel plate along a filter screen plate, when the air penetrates through the wind wheel plate, the wind wheel plate is driven to rotate, when the wind wheel plate rotates, a driving rod with the lower end rotationally installed on the filter screen plate is driven, and along with rotation of the driving rod, a shifting rod can be driven to rotate; and along with rotation of a driving rod, an inclined block in a fixing plate is shifted, a knocking plate is pushed downwards when the inclined block is shifted, the knocking plate extrudes a reset spring along a positioning rod and knocks a filter screen plate at the same time, so that blockage of the filter screen plate is avoided, the air exhaust efficiency can be guaranteed, and the practicability of the device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum feeding machine technology, specifically a vacuum feeding machine for pharmaceutical production that avoids clogging. Background Technology

[0002] Vacuum feeders for pharmaceutical production are specially designed for feeding materials during the pharmaceutical manufacturing process. This equipment uses the principle of vacuum to lift and transport materials such as powders, granules, or liquids from one container or storage tank to another container or production equipment. It is commonly used in industries such as pharmaceuticals, chemicals, and food to improve production efficiency and reduce labor intensity.

[0003] In the prior art, when conveying and feeding powdered medicines, the powder tends to adhere to the inner wall of the machine casing, which can lead to powder residue inside the device and incomplete discharge during subsequent discharge.

[0004] To overcome the above shortcomings, a prior art Chinese patent (publication number CN217069782U) discloses a vacuum feeding machine for poultry and livestock medicine production, comprising a vacuum feeding machine body, a vacuum generator, a back-blowing device, and a storage tank. The upper end of the vacuum feeding machine body is connected to a sealing cover. The vacuum generator and the back-blowing device are respectively fixedly connected to the sealing cover by a first air pipe and a second air pipe. Both the first air pipe and the second air pipe are connected to control valves. The storage tank is fixedly connected to the vacuum feeding machine body by a feed pipe. The inner side of the vacuum feeding machine body is provided with a powder removal mechanism and a dust filter. During the feeding process, the airflow flows from bottom to top, driving the fan blades to rotate. The fan blades rotate the first powder removal brush through the support frame. The first powder removal brush removes the medicine powder attached to the lower end surface of the dust filter. No additional electric drive structure is required, saving energy and with a low failure rate.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist during their operation. For example, when medicines are transported through a vacuum feeder, powder materials tend to accumulate inside the filter screen as air is extracted. This accumulation of powder materials affects air extraction and can easily cause blockages. Utility Model Content

[0006] The purpose of this invention is to provide a vacuum feeder for pharmaceutical production that avoids clogging, in order to solve the problem mentioned in the background art where, when pharmaceuticals are transported through a vacuum feeder, powder material tends to accumulate inside the filter screen as air is extracted, and this accumulation of powder material affects air extraction and easily causes clogging.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vacuum feeding machine for pharmaceutical production that avoids clogging, comprising a housing and a vacuum extraction pipe installed at the upper end of the housing, wherein a vacuum pump is provided at the lower end of the vacuum extraction pipe, an electronic discharge port is installed at the lower end of the housing, and a feeding valve pipe is connected to the left side of the housing, and a filter screen is installed on the inner wall of the housing; a drive rod is provided at the middle end of the filter screen, and an anti-clogging mechanism is installed at the upper end of the drive rod, wherein the anti-clogging mechanism includes a fan plate, and the fan plate is installed at the upper end of the drive rod; a fixing rod is installed on the surface of the drive rod, and a self-cleaning mechanism is provided inside the fixing rod, wherein the self-cleaning mechanism includes a telescopic rod, and the inner side of the telescopic rod is slidably connected to the inside of the fixing rod.

[0008] Furthermore, the filter screen is located above the feeding valve pipe, and the surface of the filter screen corresponds to the vacuum extraction pipe.

[0009] Furthermore, the anti-clogging mechanism also includes a lever, and the center of the lever is fixedly installed on the surface of the drive rod. The lever is located below the impeller plate, and the upper end of the impeller plate corresponds to the upper end of the vacuum extraction pipe.

[0010] Furthermore, a fixing plate is fixedly installed on the inner wall of the housing, and a positioning rod is fixedly installed at the lower end of the fixing plate. The lower end of the positioning rod is fixedly installed on the surface of the filter screen plate, and a striking plate is installed through the surface of the positioning rod.

[0011] Furthermore, an inclined block is fixedly installed on the upper end of the striking plate, and the upper end of the inclined block corresponds to the lever, and both sides of the inclined block are inclined.

[0012] Furthermore, a return spring is sleeved on the surface of the positioning rod, and the upper and lower ends of the return spring are installed between the striking plate and the filter screen plate, with the striking plate corresponding to the filter screen plate.

[0013] Furthermore, the self-cleaning mechanism also includes a pressure spring, which is disposed between the fixed rod and the telescopic rod. A scraper is fixedly installed on the outer side of the telescopic rod, and the outer side of the scraper is triangular in shape, with the outer side of the scraper conforming to the inner wall of the housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When air is drawn from inside the casing, the gas passes through the filter screen and the impeller plate. As the gas passes through the impeller plate, it drives the impeller plate to rotate. When the impeller plate rotates, it drives the drive rod that is rotatably mounted on the lower end of the filter screen. As the drive rod rotates, it drives the lever to rotate. As the drive rod rotates, it moves the inclined block inside the fixed plate. When the inclined block is moved, it pushes the striking plate downward. The striking plate squeezes the return spring along the positioning rod and strikes the filter screen at the same time, thereby preventing the filter screen from clogging and ensuring the efficiency of air extraction, thus further improving the practicality of the device.

[0016] Furthermore, when feeding materials through the vacuum feeder, the feed valve pipe is connected to an external pipe, and the connected pipe is embedded inside the product material to be fed. At this time, the vacuum pump is started, and after the vacuum pump is started, the vacuum pump pipe evacuates the inside of the shell. During evacuation, the vacuum gas is drawn out along the feed valve pipe to extract the material used in the production of the medicine. After the material enters the shell, it is blocked by the filter screen plate, and the raw materials of the medicine fall to the bottom of the shell by their own gravity. When feeding is needed, the electronic discharge port is opened, and the medicine inside the shell can be discharged through the electronic discharge port, which is convenient for the staff to use and is simple and convenient to operate.

[0017] 2. When the drive rod rotates, it drives the fixed rod to rotate. When the fixed rod rotates, it drives the inner telescopic rod. Under the pressure spring inside the fixed rod, the telescopic rod pushes the scraper, so that the scraper can fit tightly against the inner wall of the housing. With the drive rod, the scraper can clean the inner wall of the housing, achieving an automatic cleaning effect, avoiding the residue of medicine powder and avoiding material waste. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below.

[0020] Figure 3 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0021] Figure 4 This is a side sectional view of the three-dimensional structure of this utility model.

[0022] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0023] Figure 6 This is a top-section three-dimensional structural diagram of the wind turbine plate of this utility model.

[0024] Figure 7This is a frontal sectional view of the three-dimensional structure of the fixing rod of this utility model.

[0025] In the diagram: 1. Housing; 2. Vacuum extraction pipe; 3. Vacuum pump; 4. Electronic discharge port; 5. Feed valve pipe; 6. Filter screen; 7. Drive rod; 8. Impeller plate; 9. Toggle lever; 10. Fixing plate; 11. Positioning rod; 12. Striking plate; 13. Inclined block; 14. Return spring; 15. Fixing rod; 16. Telescopic rod; 17. Pressure spring; 18. Scraper. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: As Figures 1-6 The technical solution shown is a vacuum feeding machine for pharmaceutical production that avoids clogging. To address the potential clogging problem during pharmaceutical feeding, the solution discloses: a housing 1 and a vacuum extraction pipe 2 installed at the upper end of the housing 1, with a vacuum pump 3 installed at the lower end of the vacuum extraction pipe 2; an electronic discharge port 4 installed at the lower end of the housing 1; a feeding valve pipe 5 connected to the left side of the housing 1; and a filter screen plate 6 installed on the inner wall of the housing 1. A drive rod 7 is located at the middle of the filter screen plate 6, and an anti-clogging mechanism is installed at the upper end of the drive rod 7. The anti-clogging mechanism includes a fan plate 8, which is installed above the drive rod 7. The filter screen plate 6 is located above the feeding valve pipe 5, and its surface corresponds to the vacuum extraction pipe 2. The anti-clogging mechanism also includes a lever. The lever 9 is fixedly installed on the surface of the drive lever 7. The lever 9 is located below the impeller plate 8, and the upper end of the impeller plate 8 corresponds to the upper end of the vacuum extraction pipe 2. The inner wall of the housing 1 is fixedly installed with a fixing plate 10, and the lower end of the fixing plate 10 is fixedly installed with a positioning rod 11. The lower end of the positioning rod 11 is fixedly installed on the surface of the filter screen plate 6. The surface of the positioning rod 11 is through-mounted with a striking plate 12. The upper end of the striking plate 12 is fixedly installed with a wedge 13, and the upper end of the wedge 13 corresponds to the lever 9. Both sides of the wedge 13 are inclined. The surface of the positioning rod 11 is fitted with a return spring 14, and the upper and lower ends of the return spring 14 are installed between the striking plate 12 and the filter screen plate 6. The striking plate 12 corresponds to the filter screen plate 6.

[0028] When feeding materials through the vacuum feeder, the feed valve pipe 5 is connected to an external pipe. The connected pipe is embedded inside the product material to be fed. At this time, the vacuum pump 3 is started. After the vacuum pump 3 starts, it evacuates the inside of the housing 1 through the vacuum extraction pipe 2. During evacuation, the vacuum gas is drawn out of the material produced during drug production through the feed valve pipe 5. After the material enters the housing 1, it is blocked by the filter screen plate 6, and the raw drug material falls to the bottom of the housing 1 under its own gravity. When feeding is needed, the electronic discharge port 4 is opened, and the drug inside the housing 1 can be discharged through the electronic discharge port 4. This is convenient for operators to use and the operation is simple and convenient. When air is drawn from inside the housing 1, the gas passes through the impeller plate 8 along the filter screen plate 6. As the gas passes through the impeller plate 8, it drives the impeller plate 8 to rotate. When the impeller plate 8 rotates, it drives the drive rod 7, which is rotatably mounted to the filter screen plate 6 at its lower end. As the drive rod 7 rotates, it drives the lever 9 to rotate. As the drive rod 7 rotates, it moves the inclined block 13 inside the fixed plate 10. When the inclined block 13 is moved, it pushes the striking plate 12 downward. The striking plate 12 compresses the return spring 14 along the positioning rod 11, and at the same time, it strikes the filter screen plate 6, thereby preventing the filter screen plate 6 from becoming clogged, ensuring the efficiency of air extraction, and further improving the practicality of the device.

[0029] Example 2: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 The technical solution shown, based on Embodiment 1, discloses the following to solve the problem of inconvenient cleaning: a fixed rod 15 is installed on the surface of the drive rod 7, and a self-cleaning mechanism is provided inside the fixed rod 15. The self-cleaning mechanism includes a telescopic rod 16, and the inner side of the telescopic rod 16 is slidably connected to the inside of the fixed rod 15. The self-cleaning mechanism also includes a pressure spring 17, which is disposed between the fixed rod 15 and the telescopic rod 16. A scraper 18 is fixedly installed on the outer side of the telescopic rod 16, and the outer side of the scraper 18 is triangular in shape, with the outer side of the scraper 18 adhering to the inner wall of the housing 1.

[0030] When the drive rod 7 rotates, it drives the fixed rod 15 to rotate. When the fixed rod 15 rotates, it drives the inner telescopic rod 16. Under the push of the pressure spring 17 inside the fixed rod 15, the telescopic rod 16 pushes the scraper 18, so that the scraper 18 can fit tightly against the inner wall of the housing 1. With the drive rod 7, the scraper 18 can clean the inner wall of the housing 1, achieving the effect of automatic cleaning, avoiding the residue of medicine powder, and avoiding material waste.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum feeder for pharmaceutical production that avoids clogging, comprising a housing (1) and a vacuum extraction pipe (2) installed at the upper end of the housing (1), and a vacuum pump (3) provided at the lower end of the vacuum extraction pipe (2), an electronic discharge port (4) installed at the lower end of the housing (1), a feed valve pipe (5) connected to the left side of the housing (1), and a filter screen plate (6) installed on the inner wall of the housing (1). Its features are: The filter screen plate (6) is provided with a drive rod (7) at the middle end, and an anti-clogging mechanism is installed at the upper end of the drive rod (7). The anti-clogging mechanism includes a fan plate (8), and the fan plate (8) is installed at the upper end of the drive rod (7). The surface of the drive rod (7) is fitted with a fixed rod (15), and the fixed rod (15) is provided with a self-cleaning mechanism. The self-cleaning mechanism includes a telescopic rod (16), and the inner side of the telescopic rod (16) is slidably connected to the inside of the fixed rod (15).

2. The vacuum feeder for pharmaceutical production that avoids clogging, as described in claim 1, is characterized in that: The filter screen (6) is located above the feed valve pipe (5), and the surface of the filter screen (6) corresponds to the vacuum extraction pipe (2).

3. A vacuum feeder for pharmaceutical production that avoids clogging, as described in claim 1, characterized in that: The anti-clogging mechanism also includes a lever (9), and the center of the lever (9) is fixedly installed on the surface of the drive rod (7). The lever (9) is located below the impeller plate (8), and the upper end of the impeller plate (8) corresponds to the upper end of the vacuum pumping pipe (2).

4. A vacuum feeder for pharmaceutical production that avoids clogging, as described in claim 3, characterized in that: A fixing plate (10) is fixedly installed on the inner wall of the housing (1), and a positioning rod (11) is fixedly installed at the lower end of the fixing plate (10). The lower end of the positioning rod (11) is fixedly installed on the surface of the filter screen plate (6), and a striking plate (12) is installed through the surface of the positioning rod (11).

5. A vacuum feeder for pharmaceutical production that avoids clogging, as described in claim 4, characterized in that: The upper end of the striking plate (12) is fixedly installed with a wedge (13), and the upper end of the wedge (13) corresponds to the lever (9), and both sides of the wedge (13) are set in an inclined shape.

6. A vacuum feeder for pharmaceutical production that avoids clogging, as described in claim 5, characterized in that: The surface of the positioning rod (11) is fitted with a reset spring (14), and the upper and lower ends of the reset spring (14) are installed between the striking plate (12) and the filter screen plate (6), and the striking plate (12) corresponds to the filter screen plate (6).

7. A vacuum feeder for pharmaceutical production that avoids clogging, as described in claim 1, characterized in that: The self-cleaning mechanism also includes a pressure spring (17), which is located between the fixed rod (15) and the telescopic rod (16). A scraper (18) is fixedly installed on the outside of the telescopic rod (16), and the outside of the scraper (18) is triangular in shape. The outside of the scraper (18) is attached to the inner wall of the housing (1).

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