Vacuum feeding cylindrical mixing machine

Abstract

A feeding opening, a discharging opening and a vacuumizing air hole are formed in the side wall of a mixing barrel at intervals, the feeding opening, the discharging opening and the vacuumizing air hole are respectively communicated with the inner space of the mixing barrel, one end of a negative pressure air pipe is communicated with a negative pressure generating device, and the other end of the negative pressure air pipe is communicated with a discharging opening. One end of the negative pressure material suction pipe is in sealed communication with the feeding opening, and the other end of the negative pressure material suction pipe can be inserted into a feeding barrel carried to one side of the mixing barrel; the negative pressure generating device can generate negative pressure to extract air in the mixing barrel outwards so that raw materials in the feeding barrel can be sucked into the mixing barrel under the action of the negative pressure, the discharging opening can be used for discharging the mixed materials out of the mixing barrel, and the discharging sealing cover can be covered on the discharging opening in an opening or sealing mode. The labor intensity of workers is reduced, the feeding efficiency is improved, and pollution of dust to the clean environment is avoided.

Description

Technical Field

[0001] The utility model relates to pharmaceutical equipment, in particular to a vacuum-feeding cylindrical mixer. Background Art

[0002] In the process of drug production, the most common method of mixing raw materials is to add various raw materials into a cylindrical mixer in a certain order and proportion, and then mix the raw materials thoroughly and evenly through the cylindrical mixer.

[0003] First, open the barrel lid and manually pour the powder into the mixer in an open state. The disadvantages of this method are high labor intensity and long operation time. At the same time, since the powder particles are fine and easy to generate dust, the diffusion of dust will cause pollution to the clean workshop, and the loss of powder will also affect the product quality and the therapeutic effect of the finished product. Utility Model Content

[0004] In order to overcome the above defects, the utility model provides a cylindrical mixer with vacuum loading. The cylindrical mixer with vacuum loading adopts negative pressure loading, has high loading efficiency, saves labor, and can avoid dust pollution during loading.

[0005] In order to solve its technical problems, the utility model adopts the following technical solution: a cylindrical mixer with vacuum feeding, comprising a mixing drum, a negative pressure generating device, a negative pressure air pipe, a negative pressure suction pipe and a feeding barrel, wherein a feeding port, a discharge port and a vacuum air hole are provided at intervals on the side wall of the mixing drum, and the feeding port, the discharge port and the vacuum air hole are respectively connected to the internal space of the mixing drum, one end of the negative pressure air pipe is connected to the negative pressure generating device, and the other end of the negative pressure air pipe is sealed and connected to the vacuum air hole, one end of the negative pressure suction pipe is sealed and connected to the feeding port, and the other end of the negative pressure suction pipe can be inserted into the feeding barrel transported to the side of the mixing drum, the negative pressure generating device can generate negative pressure to draw out the air in the mixing drum, and thus the raw materials in the feeding barrel are sucked into the mixing drum under the action of negative pressure, the discharge port can allow the mixed materials to be discharged out of the mixing drum, and the discharge port is covered with a discharge sealing cover that can be opened or sealed and closed.

[0006] As a further improvement of the present invention, a sealing plug is also provided. The negative pressure air pipe and the negative pressure suction pipe have one end that can be removably sealed and inserted into the feeding port and the vacuum hole. The sealing plug can seal the feeding port and the vacuum hole after the negative pressure air pipe and the negative pressure suction pipe are pulled out.

[0007] As a further improvement of the present invention, the height of the vacuum holes is higher than the height of the raw material settling surface in the mixing barrel.

[0008] As a further improvement of the present invention, the negative pressure suction pipe is a hose, and a trumpet-shaped suction nozzle is provided at the other end thereof.

[0009] As a further improvement of the present invention, the other end of the negative pressure suction pipe is sealedly connected to the suction nozzle via a hard connecting pipe, and an operating handle is provided on the side wall of the hard connecting pipe.

[0010] As a further improvement of the present invention, a dust filtering device is provided at the vacuum air hole, and the dust filtering device can prevent the dust in the mixing barrel from entering the negative pressure air pipe.

[0011] As a further improvement of the present invention, a material stacking height detection device is further provided in the mixing barrel, which can detect the deposition height of the material entering the mixing barrel. The material stacking height detection device communicates with the negative pressure generating device to control the shutdown of the negative pressure generating device.

[0012] As a further improvement of the present invention, the middle of the mixing barrel is a cylindrical barrel structure, and the two ends of the mixing barrel are frustum structures connected to the cylindrical barrel structure. The loading port is located on the conical surface of the frustum at one end of the mixing barrel, and the discharge port is located at the end of the frustum at the other end of the mixing barrel. A mixing barrel mounting seat and a mixing barrel unloading drive device are also provided. The two ends of the mixing barrel can be rotatably installed on the mixing barrel mounting seat around a horizontal rotating shaft extending radially along the cylindrical barrel structure, and the mixing barrel unloading drive device drives the mixing barrel to rotate so that the discharge port faces downward.

[0013] As a further improvement of the present invention, an artificial feeding port is further provided at the frustum end of one end of the mixing barrel, and a feeding sealing cover which can be opened or sealed is provided on the artificial feeding port.

[0014] As a further improvement of the present invention, a mixer bracket and a mixing drive device are also provided. The mixing drum is rotatably mounted on the mixer bracket. The mixing drive device drives the mixing drum to rotate around a horizontally extending rotating shaft. A number of flexible stirring blades for stirring the material in the mixing drum are also provided on the inner side wall of the mixing drum.

[0015] The beneficial effects of the present invention are as follows: the present invention uses a negative pressure generating device to pump air into the mixing drum, so that negative pressure is formed in the mixing drum, and then the material in the feeding barrel is sucked into the mixing drum through the negative pressure suction pipe, avoiding manual feeding, greatly reducing the labor intensity of workers, and improving feeding efficiency; avoiding opening the mixing drum and manually adding materials to generate a large amount of dust, thereby avoiding dust pollution to the clean environment; eliminating the potential quality risks caused by the loss of material dust, and ensuring the proportion of various raw materials in the material mixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main view of the structural principle of the utility model;

[0017] Figure 2 It is the left view of the structural principle of the utility model. DETAILED DESCRIPTION

[0018] The vacuum feeding device is a cylindrical mixer with vacuum feeding, comprising a mixing drum 1, a negative pressure generating device 2, a negative pressure air pipe 3, a negative pressure suction pipe 4 and a feeding barrel 5. The side wall of the mixing drum 1 is provided with a feeding port 6, a discharge port 7 and a vacuum air hole 8 at intervals, and the feeding port 6, the discharge port 7 and the vacuum air hole 8 are respectively connected to the internal space of the mixing drum 1. One end of the negative pressure air pipe 3 is connected to the negative pressure generating device 2, and the other end of the negative pressure air pipe 3 is sealed and connected to the vacuum air hole 8. One end of the negative pressure suction pipe 4 is sealed and connected to the feeding port 6, and the other end of the negative pressure suction pipe 4 can be inserted into the feeding barrel 5 transported to the side of the mixing drum 1. The negative pressure generating device 2 can generate negative pressure to draw out the air in the mixing drum 1 so that the raw materials in the feeding barrel 5 are sucked into the mixing drum 1 under the action of negative pressure. The discharge port 7 can allow the mixed materials to be discharged from the mixing drum 1, and the discharge port 7 is covered with a discharge sealing cover 9 which can be opened or sealed.

[0019] When feeding the mixer, place the feeding bucket 5 filled with the material on one side of the mixer, connect one end of the negative pressure suction pipe 4 to the feeding port 6 of the mixing drum 1, and insert the other end of the negative pressure suction pipe 4 into the material in the feeding bucket 5. At the same time, connect the negative pressure air pipe 3 of the negative pressure generating device 2 to the vacuum vent 8 of the mixing drum 1. Turn on the negative pressure generating device 2, and the mixing drum 1 begins to pump air to form a negative pressure. At the same time, the material in the feeding bucket 5 is sucked into the mixing drum 1, which stirs and mixes it. The mixed material can be discharged from the discharge port 7. The mixing drum 1 is fed by negative pressure, avoiding manual feeding.

[0020] A sealing plug is also provided. One end of the negative pressure air pipe 3 and the negative pressure suction pipe 4 is respectively inserted into the feeding port 6 and the vacuum hole for vacuuming. The sealing plug can seal the feeding port 6 and the vacuum hole for vacuuming after the negative pressure air pipe 3 and the negative pressure suction pipe 4 are pulled out. After the feeding is completed, the negative pressure air pipe 3 and the negative pressure suction pipe 4 are removed from the mixing drum 1, and the feeding port 6 and the vacuum hole 8 are sealed with the sealing plug to prevent the negative pressure air pipe 3 and the negative pressure suction pipe 4 from affecting the rotation of the mixing drum 1.

[0021] The height of the vacuum vent 8 is higher than the height of the raw material settling surface in the mixing barrel 1 to avoid the material being drawn out during vacuuming.

[0022] The negative pressure suction pipe 4 is a hose, and a trumpet-shaped suction nozzle is provided at the other end thereof, which is conducive to quickly sucking the material into the mixing drum 1.

[0023] The other end of the negative pressure suction pipe 4 is sealedly connected to the suction nozzle via a hard connecting pipe, and an operating handle 10 is provided on the side wall of the hard connecting pipe.

[0024] The vacuum vent 8 is provided with a dust filter device, which can prevent the dust in the mixing cylinder 1 from entering the negative pressure air pipe 3. This prevents the dust in the mixing cylinder 1 from clogging the vacuum vent 8 and causing the vacuum failure.

[0025] The mixing drum 1 is also provided with a material accumulation height detection device, which can detect the deposition height of the material entering the mixing drum 1. The material accumulation height detection device communicates with the negative pressure generating device 2 to control the negative pressure generating device 2 to stop, thereby automatically controlling the feeding amount and preventing excessive feeding from affecting the mixing efficiency.

[0026] The mixing drum 1 has a cylindrical body structure in the middle, and a frustum structure at both ends connected to the cylindrical body structure. The feed port 6 is located on the conical surface of the frustum at one end of the mixing drum 1, and the discharge port 7 is located at the end of the frustum at the other end of the mixing drum 1. A mixing drum 1 mounting seat and a mixing drum 1 discharge drive device are also provided. The mixing drum 1 is mounted on the mixing drum 1 mounting seat so that both ends can rotate around a horizontal rotation axis extending radially along the cylindrical body structure. The mixing drum 1 discharge drive device drives the mixing drum 1 to rotate so that the discharge port 7 faces downward. Quick unloading is achieved by flipping the mixing drum 1. During unloading, the discharge port 7 faces downward, allowing all the material in the mixing drum 1 to be discharged.

[0027] An artificial feeding port 11 is further provided at the frustum end of one end of the mixing cylinder 1 , and a feeding sealing cover 12 which can be opened or sealed is provided on the artificial feeding port 11 .

[0028] A mixer support 13 and a mixing drive 14 are also provided. The mixing drum 1 is rotatably mounted on the mixer support 13. The mixing drive 14 drives the mixing drum 1 to rotate about a horizontally extending rotation axis. The inner wall of the mixing drum 1 is also provided with a plurality of flexible stirring blades 15 for stirring the material in the mixing drum 1. The flexible stirring blades 15 prevent the rigid blades from shearing the material and affecting its properties. The mixing drive 14 can be a motor and a roller, which drives the mixing drum 1 to rotate.

Claims

1. A vacuum-feeding cylindrical mixer, characterized in that: The invention comprises a mixing barrel (1), a negative pressure generating device (2), a negative pressure air pipe (3), a negative pressure suction pipe (4) and a feeding barrel (5); a feeding port (6), a discharge port (7) and a vacuum air hole (8) are provided on the side wall of the mixing barrel at intervals, and the feeding port, the discharge port and the vacuum air hole are respectively connected to the internal space of the mixing barrel; one end of the negative pressure air pipe is connected to the negative pressure generating device, and the other end of the negative pressure air pipe is sealed and connected to the vacuum air hole; one end of the negative pressure suction pipe is sealed and connected to the feeding port, and the other end of the negative pressure suction pipe can be inserted into the feeding barrel transported to the side of the mixing barrel; the negative pressure generating device can generate negative pressure to draw out the air in the mixing barrel so that the raw materials in the feeding barrel are sucked into the mixing barrel under the action of negative pressure; the discharge port can allow the mixed materials to be discharged from the mixing barrel; the discharge port is covered with a discharge sealing cover (9) which can be opened or sealed.

2. The vacuum-feed cylindrical mixer according to claim 1, characterized in that: A sealing plug is also provided. The negative pressure air pipe and the negative pressure suction pipe have removable seals at one end that are inserted into the feeding port and the vacuum hole. The sealing plug can seal the feeding port and the vacuum hole after the negative pressure air pipe and the negative pressure suction pipe are pulled out.

3. The vacuum-feeding cylindrical mixer according to claim 1, characterized in that: The height of the vacuum holes is higher than the height of the raw material settling surface in the mixing cylinder.

4. The vacuum-feeding cylindrical mixer according to claim 1, characterized in that: The negative pressure suction pipe is a hose, and a trumpet-shaped suction nozzle is provided at the other end thereof.

5. The vacuum-feed cylindrical mixer according to claim 4, characterized in that: The other end of the negative pressure suction pipe is sealed and connected to the suction nozzle via a hard connecting pipe, and an operating handle (10) is provided on the side wall of the hard connecting pipe.

6. The vacuum-feeding cylindrical mixer according to claim 1, characterized in that: A dust filter is provided at the vacuum air hole, and the dust filter can prevent dust in the mixing cylinder from entering the negative pressure air pipe.

7. The vacuum-feeding cylindrical mixer according to claim 1, characterized in that: A material stacking height detection device is also provided in the mixing barrel, and the material stacking height detection device can detect the deposition height of the material entering the mixing barrel. The material stacking height detection device communicates with the negative pressure generating device to control the negative pressure generating device to shut down.

8. The vacuum-feed cylindrical mixer according to claim 1, characterized in that: The middle of the mixing drum is a cylindrical barrel structure, and the two ends of the mixing drum are frustum structures connected to the cylindrical barrel structure. The loading port is located on the conical surface of the frustum at one end of the mixing drum, and the discharge port is located at the end of the frustum at the other end of the mixing drum. A mixing drum mounting seat and a mixing drum unloading drive device are also provided. The two ends of the mixing drum can be rotatably installed on the mixing drum mounting seat around a horizontal rotating shaft extending radially along the cylindrical barrel structure. The mixing drum unloading drive device drives the mixing drum to rotate so that the discharge port faces downward.

9. The vacuum-feed cylindrical mixer according to claim 8, characterized in that: An artificial feeding port (11) is also provided at the frustum end of one end of the mixing cylinder, and a feeding sealing cover (12) which can be opened or sealed is provided on the artificial feeding port.

10. The vacuum-feeding cylindrical mixer according to claim 1 or 8, characterized in that: A mixer support (13) and a mixing drive device (14) are also provided. The mixing drum is rotatably mounted on the mixer support. The mixing drive device drives the mixing drum to rotate around a horizontally extending rotating shaft. A plurality of flexible stirring blades (15) for stirring the material in the mixing drum are also provided on the inner side wall of the mixing drum.

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