Energy-saving type vacuum feeding machine for pharmacy

Abstract

The utility model relates to an energy-saving type vacuum feeding machine for pharmacy, which comprises an upper hopper and a lower hopper, a feeding port is arranged in front of the upper hopper, an upper cover is arranged above the upper hopper, a vacuum generator is arranged at the top of the upper cover, and a reverse blowing valve is arranged in front of the vacuum generator. The upper hopper and the lower hopper are connected through a clamp assembly, and the upper hopper and the upper cover are connected through a clamp assembly. An adjustable valve assembly and a respirator assembly are arranged on the two sides of the lower hopper respectively, and a pneumatic electric appliance box is arranged in front of the respirator assembly; the utility model has the advantages of reasonable structure, convenience in use, high working efficiency, pneumatic pedal type valve control and prolonged service life.

Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical equipment technology, specifically relating to an energy-saving vacuum feeder for pharmaceutical applications. Background Technology

[0002] Vacuum conveyors, also known as vacuum feeders, are an important process in the production of pharmaceutical intermediates. They are dust-free, closed-loop conveying devices that use vacuum suction to transport granular and powdered materials. The pressure difference between the vacuum and the ambient air creates gas flow within the pipe, moving the powdered raw materials and thus completing the transport. However, existing vacuum conveyors suffer from several drawbacks. Firstly, their inefficient design leads to clogged vacuum pumps, causing damage and reduced conveying efficiency. This negatively impacts the machine's usability, energy consumption, and lifespan. Secondly, existing vacuum conveyors lack operable valves, preventing them from adjusting valve opening and closing according to actual material requirements, resulting in machine shutdown and wasted energy. Therefore, it is essential to provide a pharmaceutical-grade, energy-efficient vacuum conveyor with a rational structure, ease of use, high efficiency, pneumatic foot-operated valve control, and extended service life. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pharmaceutical energy-saving vacuum feeder with reasonable structure, convenient use, high working efficiency, pneumatic foot pedal valve control, and extended service life.

[0004] The purpose of this utility model is achieved as follows: an energy-saving vacuum feeder for pharmaceutical use, comprising an upper hopper and a lower hopper, wherein a feed inlet is provided at the front of the upper hopper, an upper cover is provided above the upper hopper, a vacuum generator is provided on the top of the upper cover, a backflush valve is provided in front of the vacuum generator, and the upper hopper and the lower hopper, as well as the upper hopper and the upper cover, are connected by clamp assemblies; an adjustable valve assembly and a breather assembly are respectively provided on both sides of the lower hopper, and a pneumatic electrical box is provided in front of the breather assembly.

[0005] A transition plate is provided at the connection between the bottom of the upper hopper and the top of the lower hopper. A cylinder bracket is provided on the transition plate, and a cylinder body is installed on the cylinder bracket. Flow regulating valves are provided on both the upper and lower sides of the cylinder body.

[0006] The flow regulating valve at the lower part of the cylinder body is connected to the pneumatic electrical box via a first cable, the flow regulating valve at the upper part of the cylinder body is connected to the vacuum generator via a second cable, the vacuum generator is connected to the pneumatic electrical box via a third cable, and the vacuum generator is connected to the backflush valve via a fourth cable.

[0007] The bottom of the transition plate is provided with a transition hopper located inside the lower hopper, and the bottom of the transition hopper is provided with a hopper ring.

[0008] The upper cover has an internal structure with an air cover and a filter assembly respectively. The filter assembly is connected to a vacuum generator. A flat air bag is provided on one side inside the air cover, and the flat air bag is connected to a backflush valve. The filter assembly has a filter disc inside, and multiple stainless steel filters are evenly spaced along the bottom circumference of the filter disc.

[0009] The vacuum generator includes a set of side sealing plates arranged front and rear. Inside the vacuum generator, there is an upper section of a silencer and a lower section of a silencer on the upper side. Both the upper and lower sections of the silencer are filled with silencer sponge.

[0010] The adjustable valve assembly includes a rotary cylinder, a cylinder seat is provided inside the rotary cylinder, set screws are provided on the front and top of the cylinder seat, a bearing seat is provided inside the cylinder seat, a rotary lever arm is installed at the end of the bearing seat, and a valve plate is fixedly installed at the end of the rotary lever arm through a connecting plate. The valve plate is located at the bottom of the hopper ring and the valve plate matches the hopper ring.

[0011] The respirator assembly includes a respirator bag, inside which a respirator rubber sleeve is installed, and the respirator assembly is connected to the lower hopper via a hose clamp.

[0012] The pharmaceutical energy-saving vacuum feeder also includes a foot switch. The foot switch includes a base, and an inclined support is provided on the top of the base. A pedal frame is hinged to the lower end of one side of the support, and foot cylinders are hinged to both the front and rear sides of the upper end of the other side. The pedal frame is connected to a set of foot cylinders through a hinge rod. The foot cylinders are connected to the rotary cylinder of the adjustable valve assembly.

[0013] The beneficial effects of this utility model are as follows: This utility model is an energy-saving vacuum feeder for pharmaceutical applications. It can directly transport materials from containers to mixers, reactors, tablet presses, packaging machines, vibrating screens, granulators, wet granulation machines, dry granulation machines, and pulverizers, etc. In use, this utility model is a dust-free, closed-loop pipeline conveying device that uses vacuum suction to transport granular and powdered materials. It utilizes the pressure difference between the vacuum and the ambient space to create gas flow within the pipeline, driving the movement of the powdered material, thereby completing the powder conveying process. During the conveying process, the adjustable valve assembly can be controlled via a foot switch to rotate the valve plate, thereby controlling or blocking the feeding speed of the transition hopper in the lower hopper without stopping the machine. This invention significantly improves work efficiency and saves energy. The flat air bag inside the top cover works in conjunction with the backflush valve to achieve the self-cleaning function of the filter assembly. The filter assembly uses multiple stainless steel filters to prevent clogging of the vacuum generator, thus avoiding damage to the vacuum generator and reduced conveying efficiency, thereby ensuring the overall use and energy consumption of the equipment and greatly extending its service life. The included breather assembly can regulate the internal air pressure of the equipment, ensuring that the equipment operates within the normal working range (under negative pressure), preventing excessive air pressure fluctuations (too high or too low) from affecting the material conveying efficiency and equipment stability. This invention has the advantages of reasonable structure, convenient use, high work efficiency, pneumatic foot-operated valve control, and extended service life. Attached Figure Description

[0014] Figure 1 This is a front view of the energy-saving vacuum feeder for pharmaceutical use according to this utility model.

[0015] Figure 2 This is a partial three-dimensional view of the structure of the energy-saving vacuum feeder for pharmaceutical use according to this utility model.

[0016] Figure 3 This is a partial internal structure diagram of the energy-saving vacuum feeder for pharmaceuticals according to this utility model.

[0017] Figure 4 This utility model Figure 3 Schematic diagram of the internal structure of the middle section.

[0018] Figure 5 This is a schematic diagram of the foot switch of the energy-saving vacuum feeder for pharmaceutical use according to this utility model.

[0019] In the diagram: 1. Upper hopper; 2. Lower hopper; 3. Upper cover; 31. Air cover; 32. Filter assembly; 33. Flat air bag; 34. Filter disc; 35. Stainless steel filter; 4. Clamp assembly; 5. Vacuum generator; 51. Side sealing plate; 52. Upper section of silencer; 53. Lower section of silencer; 54. Silencer sponge; 6. Pneumatic electrical box; 7. Adjustable valve assembly; 71. Rotary cylinder; 72. Cylinder seat; 73. Set screw; 74. Bearing seat; 75. Rotating lever arm; 76. Valve plate; 77. Connecting plate. 8. Breathing device assembly 81. Breathing device bag 82. Breathing device rubber sleeve 83. Hose clamp 9. Foot switch 91. Base 92. Support 93. Pedal frame 94. Foot cylinder 95. Hinge rod 10. Transition plate 101. Cylinder bracket 102. Cylinder body 103. Flow regulating valve 104. First cable 105. Second cable 106. Third cable 107. Fourth cable 11. Backflush valve 12. Transition hopper 13. Hopper ring 14. Feed inlet. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings. Example

[0021] like Figure 1-5 As shown, an energy-saving vacuum feeder for pharmaceutical use includes an upper hopper 1 and a lower hopper 2. The upper hopper 1 has a feed inlet 14 at its front and an upper cover 3 on top of it. A vacuum generator 5 is mounted on the top of the upper cover 3, and a backflush valve 11 is mounted in front of the vacuum generator 5. The upper hopper 1 and the lower hopper 2, as well as the upper hopper 1 and the upper cover 3, are connected by clamp assemblies 4. Adjustable valve assemblies 7 and breather assemblies 8 are respectively mounted on both sides of the lower hopper 2, and a pneumatic electrical box 6 is mounted in front of the breather assembly 8.

[0022] A transition plate 10 is provided at the connection between the bottom of the upper hopper 1 and the top of the lower hopper 2. A cylinder bracket 101 is provided on the transition plate 10. A cylinder body 102 is installed on the cylinder bracket 101. Flow regulating valves 103 are provided on both the upper and lower sides of the cylinder body 102.

[0023] The flow regulating valve 103 at the lower part of the cylinder body 102 is connected to the pneumatic electrical box 6 via the first cable 104. The flow regulating valve 103 at the upper part of the cylinder body 102 is connected to the vacuum generator 5 via the second cable 105. The vacuum generator 5 is connected to the pneumatic electrical box 6 via the third cable 106. The vacuum generator 5 is connected to the backflush valve 11 via the fourth cable 107.

[0024] The bottom of the transition plate 10 is provided with a transition hopper 12 located inside the lower hopper 2, and the bottom of the transition hopper 12 is provided with a hopper ring 13.

[0025] The upper cover 3 has an internal structure with an air cover 31 and a filter assembly 32 respectively. The filter assembly 32 is connected to the vacuum generator 5. A flat air bag 33 is provided on one side inside the air cover 31, and the flat air bag 33 is connected to the backflush valve 11. A filter plate 34 is provided inside the filter assembly 32. Multiple stainless steel filters 35 are evenly spaced along the bottom circumference of the filter plate 34.

[0026] The vacuum generator 5 includes a set of side sealing plates 51 arranged front and rear. Inside the vacuum generator 5, an upper section 52 of the silencer is arranged on the upper part and a lower section 53 of the silencer is arranged on the lower part. Both the upper section 52 and the lower section 53 of the silencer are filled with silencer sponge 54.

[0027] In this embodiment, when the vacuum generator is working, negative pressure is generated in the upper hopper to form a vacuum airflow. The material is sucked into the feed inlet, forming a material-airflow that passes through the feed inlet and reaches the hopper in the upper hopper. The stainless steel filter completely separates the material from the air. When the hopper is full, the pneumatic electrical box automatically cuts off the power, the vacuum generator stops working, and the foot switch controls the adjustable valve assembly to open the valve plate (in actual use, the foot switch can also be replaced with an automatic control switch to automatically open the valve plate). The material falls into the lower hopper of the equipment. At the same time, compressed air automatically cleans the filter through the flat air bag and backflush valve.

[0028] This utility model relates to an energy-saving vacuum conveyor for pharmaceutical applications. It can directly transport materials from containers to mixers, reactors, tablet presses, packaging machines, vibrating screens, granulators, wet granulation machines, dry granulation machines, and pulverizers. In use, this utility model is a dust-free, closed-loop pipeline conveying device that uses vacuum suction to transport granular and powdered materials. It utilizes the pressure difference between the vacuum and the ambient space to create gas flow within the pipeline, driving the movement of the powdered material and thus completing the powder conveying process. During conveying, the adjustable valve assembly 7 can be controlled via a foot switch 9, causing it to rotate the valve plate 76. This controls the feeding speed of the transition hopper in the lower hopper or blocks feeding, eliminating the need to stop the machine and greatly improving work efficiency and saving energy. Energy saving; the flat air bag 33 inside the top cover 3 works with the backflush valve 11 to achieve the self-cleaning function of the filter assembly 32; the filter assembly 32 performs filtration through multiple stainless steel filters 35 to avoid clogging of the vacuum generator 5, avoid damage to the vacuum generator 5 and reduce conveying efficiency, thereby ensuring the use and energy consumption of the overall equipment and greatly extending its service life; the set breather assembly 8 can adjust the air pressure inside the equipment to ensure that the equipment operates within the normal working range (under negative pressure), preventing the material conveying efficiency and equipment stability from being affected by excessive air pressure fluctuations (too high or too low); this utility model has the advantages of reasonable structure, convenient use, high working efficiency, pneumatic foot pedal valve control, and extended service life. Example

[0029] like Figure 1-5 As shown, an energy-saving vacuum feeder for pharmaceutical use includes an upper hopper 1 and a lower hopper 2. The upper hopper 1 has a feed inlet 14 at its front and an upper cover 3 on top of it. A vacuum generator 5 is mounted on the top of the upper cover 3, and a backflush valve 11 is mounted in front of the vacuum generator 5. The upper hopper 1 and the lower hopper 2, as well as the upper hopper 1 and the upper cover 3, are connected by clamp assemblies 4. Adjustable valve assemblies 7 and breather assemblies 8 are respectively mounted on both sides of the lower hopper 2, and a pneumatic electrical box 6 is mounted in front of the breather assembly 8.

[0030] The adjustable valve assembly 7 includes a rotary cylinder 71, a cylinder seat 72 is provided inside the rotary cylinder 71, set screws 73 are provided on the front and top of the cylinder seat 72, a bearing seat 74 is provided inside the cylinder seat 72, a rotary lever arm 75 is installed at the end of the bearing seat 74, and a valve plate 76 is fixedly installed at the end of the rotary lever arm 75 through a connecting plate 77. The valve plate 76 is located at the bottom of the hopper ring 13 and the valve plate 76 matches the hopper ring 13.

[0031] The respirator assembly 8 includes a respirator bag 81, inside which a respirator sleeve 82 is installed, and the respirator assembly 8 is connected to the lower hopper 2 via a hose clamp 83.

[0032] The pharmaceutical energy-saving vacuum feeder also includes a foot switch 9. The foot switch 9 includes a base 91 and an inclined support 92 above the base 91. A pedal frame 93 is hinged to the lower end of one side of the support 92, and foot cylinders 94 are hinged to both the front and rear sides of the upper end of the other side. The pedal frame 93 is connected to a set of foot cylinders 94 through a hinge rod 95. The foot cylinders 94 are connected to the rotary cylinder 71 of the adjustable valve assembly 7.

[0033] In this embodiment, stepping on the pedal frame activates the foot pedal cylinder, which transmits power to the rotary cylinder via a corresponding air pipe. The rotary cylinder then rotates the valve plate via a rotating lever arm, thereby opening and closing the valve plate and adjusting the opening angle between the valve plate and the hopper ring. This allows for the control of the material feeding speed and the blocking of material feeding.

[0034] This utility model relates to an energy-saving vacuum conveyor for pharmaceutical applications. It can directly transport materials from containers to mixers, reactors, tablet presses, packaging machines, vibrating screens, granulators, wet granulation machines, dry granulation machines, and pulverizers. In use, this utility model is a dust-free, closed-loop pipeline conveying device that uses vacuum suction to transport granular and powdered materials. It utilizes the pressure difference between the vacuum and the ambient space to create gas flow within the pipeline, driving the movement of the powdered material and thus completing the powder conveying process. During conveying, the adjustable valve assembly 7 can be controlled via a foot switch 9, causing it to rotate the valve plate 76. This controls the feeding speed of the transition hopper in the lower hopper or blocks feeding, eliminating the need to stop the machine and greatly improving work efficiency and saving energy. Energy saving; the flat air bag 33 inside the top cover 3 works with the backflush valve 11 to achieve the self-cleaning function of the filter assembly 32; the filter assembly 32 performs filtration through multiple stainless steel filters 35 to avoid clogging of the vacuum generator 5, avoid damage to the vacuum generator 5 and reduce conveying efficiency, thereby ensuring the use and energy consumption of the overall equipment and greatly extending its service life; the set breather assembly 8 can adjust the air pressure inside the equipment to ensure that the equipment operates within the normal working range (under negative pressure), preventing the material conveying efficiency and equipment stability from being affected by excessive air pressure fluctuations (too high or too low); this utility model has the advantages of reasonable structure, convenient use, high working efficiency, pneumatic foot pedal valve control, and extended service life.

Claims

1. An energy-saving vacuum feeder for pharmaceutical applications, comprising an upper hopper and a lower hopper, characterized in that: The upper hopper is provided with a feed inlet in front of it, and an upper cover is provided above the upper hopper. A vacuum generator is provided on the top of the upper cover, and a backflush valve is provided in front of the vacuum generator. The upper hopper and the lower hopper, as well as the upper hopper and the upper cover, are connected by clamp assemblies. Adjustable valve assemblies and breather assemblies are provided on both sides of the lower hopper, and a pneumatic electrical box is provided in front of the breather assembly.

2. The energy-saving vacuum feeder for pharmaceutical use according to claim 1, characterized in that: A transition plate is provided at the connection between the bottom of the upper hopper and the top of the lower hopper. A cylinder bracket is provided on the transition plate, and a cylinder body is installed on the cylinder bracket. Flow regulating valves are provided on both the upper and lower sides of the cylinder body.

3. The energy-saving vacuum feeder for pharmaceutical use according to claim 2, characterized in that: The flow regulating valve at the lower part of the cylinder body is connected to the pneumatic electrical box via a first cable, the flow regulating valve at the upper part of the cylinder body is connected to the vacuum generator via a second cable, the vacuum generator is connected to the pneumatic electrical box via a third cable, and the vacuum generator is connected to the backflush valve via a fourth cable.

4. The energy-saving vacuum feeder for pharmaceutical use according to claim 3, characterized in that: The bottom of the transition plate is provided with a transition hopper located inside the lower hopper, and the bottom of the transition hopper is provided with a hopper ring.

5. The energy-saving vacuum feeder for pharmaceutical use according to claim 1, characterized in that: The upper cover has an internal structure with an air cover and a filter assembly respectively. The filter assembly is connected to a vacuum generator. A flat air bag is provided on one side inside the air cover, and the flat air bag is connected to a backflush valve. The filter assembly has a filter disc inside, and multiple stainless steel filters are evenly spaced along the bottom circumference of the filter disc.

6. The energy-saving vacuum feeder for pharmaceutical use according to claim 5, characterized in that: The vacuum generator includes a set of side sealing plates arranged front and rear. Inside the vacuum generator, there is an upper section of a silencer and a lower section of a silencer on the upper side. Both the upper and lower sections of the silencer are filled with silencer sponge.

7. The energy-saving vacuum feeder for pharmaceutical use according to claim 1, characterized in that: The adjustable valve assembly includes a rotary cylinder, a cylinder seat is provided inside the rotary cylinder, set screws are provided on the front and top of the cylinder seat, a bearing seat is provided inside the cylinder seat, a rotary lever arm is installed at the end of the bearing seat, and a valve plate is fixedly installed at the end of the rotary lever arm through a connecting plate. The valve plate is located at the bottom of the hopper ring and the valve plate matches the hopper ring.

8. The energy-saving vacuum feeder for pharmaceutical use according to claim 1, characterized in that: The respirator assembly includes a respirator bag, inside which a respirator rubber sleeve is installed, and the respirator assembly is connected to the lower hopper via a hose clamp.

9. The energy-saving vacuum feeder for pharmaceutical use according to claim 1, characterized in that: It also includes a foot switch, which includes a base and an inclined support on the top of the base. A pedal frame is hinged to the lower end of one side of the support, and foot cylinders are hinged to both the front and rear sides of the upper end of the other side. The pedal frame is connected to a set of foot cylinders through a hinge rod, and the foot cylinders are connected to the rotary cylinders of the adjustable valve assembly.

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