Raw material medicine powder automatic packaging equipment

Abstract

This application relates to the field of active pharmaceutical ingredient (API) powder packaging technology, specifically disclosing an automatic API powder packaging device. The device includes a hopper and a conveyor belt. The hopper is positioned above the conveyor belt, and a discharge pipe with a switch valve is located at the bottom of the hopper. A mounting bracket is located at the bottom of the hopper, and two sliders are slidably connected laterally to both sides of the mounting bracket. Lifting rods are slidably connected vertically to the sliders, and clamping blocks are located on the bottom sides of the two lifting rods that are close to each other. A driving mechanism for moving the two sliders closer together or further apart is provided on the mounting bracket, and a lifting mechanism for moving the lifting rods up and down is provided on the sliders. This application effectively addresses the problem of API powder easily becoming airborne during its descent, which not only causes measurement deviations during packaging but also affects the processing environment.

Description

Technical Field

[0001] This application relates to the field of active pharmaceutical ingredient (API) powder packaging technology, and in particular to an automatic API powder packaging device. Background Technology

[0002] Active pharmaceutical ingredients (APIs) refer to the raw materials used in the production of various preparations. They are the active ingredients in these preparations and are various powders, crystals, extracts, etc., prepared by chemical synthesis, plant extraction, or biotechnology for medicinal use, but cannot be taken directly by patients.

[0003] In the manufacturing process of finished pharmaceutical products, active pharmaceutical ingredients (APIs) powders typically require quantitative dispensing to ensure drug quality. Currently, most API powder dispensing operations are performed manually, which is difficult to guarantee a consistent quantity of powder per portion and is inconvenient. A few systems utilize feeding mechanisms combined with conveyor belts to transport receiving containers for automated API powder dispensing. However, this method is highly susceptible to powder scattering during the descent of the powder, leading to not only measurement errors during dispensing but also negatively impacting the processing environment. Utility Model Content

[0004] In order to improve the problem that the powder of raw pharmaceutical materials is prone to flying during the falling process, which not only causes measurement deviation during dispensing, but also affects the processing environment, this application provides an automatic dispensing equipment for raw pharmaceutical materials.

[0005] The automatic dispensing equipment for active pharmaceutical ingredient powder provided in this application adopts the following technical solution:

[0006] An automatic dispensing device for raw pharmaceutical powder includes a hopper and a conveyor belt. The hopper is located above the conveyor belt, and a discharge pipe is provided at the bottom of the hopper. A switch valve is provided on the discharge pipe. A mounting bracket is provided at the bottom of the hopper. Two sliders are slidably connected to each other on both sides of the mounting bracket. A lifting rod is slidably connected to the sliders on the vertical side. Clamping blocks are provided on the bottom sides of the two lifting rods that are close to each other. A driving mechanism is provided on the mounting bracket to drive the two sliders to move closer or further apart. A lifting mechanism is provided on the sliders to drive the lifting rods to move up and down.

[0007] By adopting the above technical solution, the feeding hopper is located above the conveyor belt and has a discharge pipe and a switch valve at the bottom, which can realize the function of conveying raw drug powder from the feeding hopper downward through the discharge pipe and control the discharge. The mounting bracket is equipped with horizontally sliding sliders and vertically sliding lifting rods and clamping blocks on both sides. With the drive mechanism driving the sliders to move towards or away from each other and the lifting mechanism driving the lifting rod to rise and fall, it can realize the horizontal precise positioning and clamping of the dispensing container and the vertical position adjustment, so that the discharge pipe can extend into the dispensing container, which is convenient for feeding raw drug powder. This improves the problem that raw drug powder is prone to flying during the falling process, which not only causes measurement deviation during dispensing, but also affects the processing environment.

[0008] Optionally, the driving mechanism includes a double-ended lead screw and a first rotating motor. The double-ended lead screw is rotatably connected to the mounting bracket about the sliding direction of the slider. Both ends of the double-ended lead screw are respectively threaded onto a slider and connected to the slider by threads. The first rotating motor is mounted on the mounting bracket, and the rotating shaft of the first rotating motor is connected to the double-ended lead screw.

[0009] By adopting the above technical solution, the drive mechanism uses a double-ended lead screw and a first rotating motor. The first rotating motor drives the double-ended lead screw to rotate, which can accurately drive the two sliders to move closer or further apart, thereby stably controlling the distance between the two clamping blocks to adapt to the clamping operation of containers of different sizes.

[0010] Optionally, the lifting mechanism includes a gear, a rack, and a rotating assembly. The gear is rotatably connected to the slider, the rack is vertically mounted on the lifting rod, and the gear meshes with the rack. The rotating assembly is mounted on the slider to drive the gear to rotate.

[0011] By adopting the above technical solution, the rotating component drives the gear to rotate. Since the gear meshes with the rack that is vertically set on the lifting rod, the rotation of the gear will drive the meshing rack to move vertically, thereby realizing the lifting rod's lifting and lowering movement on the slider. This allows the clamping block connected to the lifting rod to move up and down to adjust the vertical position of the dispensing container.

[0012] Optionally, the rotating assembly includes a worm gear, a worm, and a second rotating motor. The worm gear is coaxially connected to the gear, the worm is rotatably connected to the slider, and the worm meshes with the worm gear. The second rotating motor is mounted on the slider, and the rotating shaft of the second rotating motor is connected to the worm.

[0013] By adopting the above technical solution, when the second rotating motor is started, its rotating shaft drives the worm to rotate. Since the worm meshes with the worm wheel, the rotation of the worm drives the worm wheel to rotate. Since the worm wheel is coaxially connected to the gear, it drives the gear to rotate. Since the gear meshes with the rack, the lifting rod connected to the rack can achieve lifting and lowering movement. By utilizing the self-locking property of the worm gear transmission, it can be ensured that the lifting rod can stably maintain its current position when it stops moving, avoiding accidental slippage or displacement, thus improving the stability and reliability of the equipment operation.

[0014] Optionally, a third rotating motor is provided vertically at the top of the hopper, and a rotating rod is provided on the rotating shaft of the third rotating motor. The rotating rod extends into the discharge pipe and is provided with helical blades.

[0015] By adopting the above technical solution, the third rotating motor can drive the rotating rod to rotate, thereby making the spiral blades rotate, which promotes the smooth entry of the raw material powder in the hopper into the discharge pipe, prevents powder blockage, ensures smooth dispensing process, and the rotation of the spiral blades can also break up the clumps of powder, further preventing blockage.

[0016] Optionally, the rotating rod is provided with a connecting rod, and the connecting rod is provided with a scraper, which abuts against the inner wall of the hopper.

[0017] By adopting the above technical solution, the scraper that abuts against the inner wall of the hopper can scrape off the raw material powder adhering to the inner wall of the hopper, reducing raw material residue and waste.

[0018] Optionally, each of the two clamping blocks is provided with a buffer block on one side close to each other, and a buffer spring is connected between the buffer block and the clamping block.

[0019] By adopting the above technical solution, a buffer block is set on the side of the two clamping blocks that are close to each other and connected by a buffer spring, which can play a buffering role when clamping the dispensing container and avoid damaging the container due to excessive clamping force.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The dispensing container is intermittently conveyed on the conveyor belt. When the dispensing container is directly below the discharge pipe, the lifting mechanism drives the lifting rod to descend. The driving mechanism drives the two sliders to move closer together, so that the lifting rods on the sliders move closer together until the clamping blocks at the bottom of the lifting rods clamp the two sides of the dispensing container. Then, the lifting mechanism drives the lifting rod to rise, so that the discharge pipe is inserted into the dispensing container. At this time, the switch valve is opened, and the raw material powder is input into the dispensing container through the discharge pipe. After discharging for a period of time, the switch valve is closed, and the dispensing container is placed back on the conveyor belt under the action of the lifting mechanism and the driving mechanism to continue conveying. This realizes the automatic dispensing of raw material powder, which improves the problem that the raw material powder is very easy to cause powder to fly during the falling process, which not only causes the metering deviation during dispensing, but also affects the processing environment.

[0022] 2. The first rotating motor drives the double-headed lead screw to rotate, which can precisely drive the two sliders to move closer or further apart, thereby stably controlling the distance between the two clamping blocks to adapt to the clamping operation of containers of different sizes;

[0023] 3. The third rotating motor, rotating rod and spiral blade are designed to prevent powder blockage and ensure smooth dispensing process. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0026] Figure 2 This is a cross-sectional structural diagram of an embodiment of this application;

[0027] Figure 3 yes Figure 1 A magnified view of part A in the diagram.

[0028] Reference numerals: 1. Hopper; 11. Discharge pipe; 12. Switch valve; 13. Third rotating motor; 14. Rotating rod; 15. Spiral blade; 16. Connecting rod; 17. Scraper; 2. Conveyor belt; 3. Mounting bracket; 31. Double-ended lead screw; 32. First rotating motor; 4. Slider; 41. Slide groove; 42. Gear; 43. Worm gear; 44. Worm; 45. Second rotating motor; 5. Lifting rod; 51. Clamping block; 52. Buffer block; 53. Buffer spring; 54. Rack. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0030] This application discloses an automated dispensing device for pharmaceutical raw material powders. (Refer to...) Figure 1-2 The automatic pharmaceutical powder dispensing equipment includes a hopper 1, a conveyor belt 2, a drive mechanism, and a lifting mechanism. The conveyor belt 2 is driven by a servo motor and has an intermittent conveying function. The hopper 1 is installed above the conveyor belt 2, and a discharge pipe 11 is vertically connected to the bottom of the hopper 1. A switching valve 12 is installed on the discharge pipe 11 to control the opening and closing of the discharge pipe 11. The discharge pipe 11 guides the pharmaceutical powder from the hopper 1 into the dispensing container on the conveyor belt 2. The switching valve 12 controls the timing and flow rate of powder dispensing. The switching valve 12 can be an electric ball valve with fast response and good sealing, or a solenoid gate valve for rapid opening and closing. When dispensing, the switching valve 12 is opened, and the powder falls into the dispensing container through the discharge pipe 11; after dispensing, the switching valve 12 is closed to stop dispensing.

[0031] The bottom of the hopper 1 is connected to a horizontally arranged mounting bracket 3. The mounting bracket 3 has a rectangular frame structure. Two sliders 4 are slidably connected to each other on both sides of the mounting bracket 3. Each slider 4 has a vertically oriented groove 41. A lifting rod 5 is slidably engaged in the groove 41. Clamping blocks 51 are welded and fixed to the bottom of the lifting rods 5 on both sliders 4 on the side closest to each other. The mounting bracket 3 is equipped with a drive mechanism for driving the two sliders 4 to move closer or further apart. Each slider 4 is equipped with a lifting mechanism for driving the lifting rod 5 to rise and fall.

[0032] The dispensing container is intermittently conveyed on the conveyor belt 2. When the dispensing container is directly below the discharge pipe 11, the lifting mechanism drives the lifting rod 5 to descend. The driving mechanism drives the two sliders 4 to move closer to each other, so that the lifting rods 5 on the sliders 4 move closer to each other until the clamping block 51 at the bottom of the lifting rod 5 clamps the two sides of the dispensing container. Then the lifting mechanism drives the lifting rod 5 to rise, so that the discharge pipe 11 is inserted into the dispensing container. At this time, the switch valve 12 is opened, and the raw material powder is input into the dispensing container through the discharge pipe 11. After discharging for a period of time, the switch valve 12 is closed, and the dispensing container is put back on the conveyor belt 2 under the action of the lifting mechanism and the driving mechanism to continue conveying. This realizes the automatic dispensing of raw material powder, which improves the problem that the raw material powder is very easy to cause powder to fly during the falling process, which not only causes the metering deviation during dispensing, but also affects the processing environment.

[0033] Furthermore, to reduce damage to the dispensing containers during clamping, buffer blocks 52 are provided on the side of each clamping block 51 that is close to each other, and a buffer spring 53 is connected between the buffer block 52 and the clamping block 51. The buffer block 52 is made of hard rubber. The cooperation between the buffer block 52 and the buffer spring 53 can provide a buffering effect when clamping the dispensing containers, preventing damage to the containers due to excessive clamping force.

[0034] For example, the drive mechanism includes a double-ended lead screw 31 and a first rotary motor 32. The double-ended lead screw 31 is rotatably connected to the mounting bracket 3 about the sliding direction of the slider 4. Each end of the double-ended lead screw 31 passes through a slider 4 and is threadedly connected to each slider 4. The first rotary motor 32 is mounted on the mounting bracket 3, and its rotating shaft is connected to the double-ended lead screw 31. After the first rotary motor 32 starts, it drives the double-ended lead screw 31 to rotate. Because the threads at both ends of the double-ended lead screw 31 rotate in opposite directions, the two sliders 4 can move closer or further apart along the axial direction of the lead screw. The first rotary motor 32 can be a servo motor, capable of precisely controlling the speed and angle, thereby achieving precise adjustment of the slider 4's position; or it can be a stepper motor, which has good positioning accuracy and low-speed stability.

[0035] For example, the lifting mechanism includes a gear 42, a rack 54, and a rotating assembly. The gear 42 is rotatably connected to the slider 4, and the rack 54 is vertically welded and fixed to the lifting rod 5. The gear 42 meshes with the rack 54. The rotating assembly is disposed on the slider 4 and is used to drive the gear 42 to rotate. The rotating assembly drives the gear 42 to rotate, and through the meshing transmission between the gear 42 and the rack 54, the lifting rod 5 achieves lifting and lowering movement.

[0036] The rotating assembly includes a worm gear 43, a worm 44, and a second rotating motor 45. The worm gear 43 is coaxially connected to the gear 42, and the worm 44 is rotatably connected to the slider 4, meshing with the worm gear 43. The second rotating motor 45 is bolted to the slider 4, and its rotating shaft is connected to the worm 44. The second rotating motor 45 drives the worm 44 to rotate, which in turn drives the worm gear 43 to rotate, thereby causing the gear 42, which is coaxial with the worm gear 43, to rotate. Utilizing the self-locking property of the worm gear 43-worm 44 transmission, the lifting rod 5 can stably maintain its current position when it stops moving, avoiding accidental slippage or displacement, thus improving the stability and reliability of the equipment operation. In this application, the second rotating motor 45 can also be a servo motor or a stepper motor to ensure rotational accuracy.

[0037] In addition, refer to Figure 1 and Figure 3A third rotary motor 13 is vertically bolted to the top of the hopper 1. A rotating rod 14 is coaxially connected to the rotating shaft of the third rotary motor 13. The rotating rod 14 extends into the discharge pipe 11 and is equipped with helical blades 15. The third rotary motor 13 drives the rotating rod 14 and the helical blades 15 to rotate, which helps the powder fall smoothly and prevents the powder from clogging in the discharge pipe 11. The pitch and diameter of the helical blades 15 can be adjusted according to the characteristics of the powder. For powders with good flowability, a larger pitch can be used; for powders with high viscosity, a smaller pitch can be used. The rotating rod 14 can be a hollow rod, which reduces weight and facilitates wiring.

[0038] Furthermore, a connecting rod 16 is vertically welded to the rotating rod 14. A scraper 17 is connected to the end of the connecting rod 16 furthest from the rotating rod 14, and the scraper 17 abuts against the inner wall of the hopper 1. As the rotating rod 14 rotates, the scraper 17 scrapes along the inner wall of the hopper 1, preventing powder from adhering to the inner wall and ensuring smooth material discharge. The scraper 17 can be made of rubber, which effectively removes powder without scratching the inner wall of the hopper 1.

[0039] The implementation principle of the automatic dispensing equipment for raw material powder in this application embodiment is as follows: The dispensing container is intermittently conveyed on the conveyor belt 2. When the dispensing container is directly below the discharge pipe 11, the second rotary motor 45 starts and drives the worm gear 44 to rotate, which in turn drives the worm wheel 43 to rotate, which in turn drives the gear 42 to rotate, thereby driving the rack 54 to move vertically, and then driving the lifting rod 5 to descend to the clamping block 51 on it, which approaches the dispensing container. Then, the first rotary motor 32 starts and drives the double-headed lead screw 31 to rotate, thereby driving the two sliders 4 to move closer to each other, so that the lifting rods 5 on the sliders 4 move closer to each other, until the clamping block 51 at the bottom of the lifting rod 5 clamps the two sides of the dispensing container, thus achieving stable clamping of the dispensing container. Then, the second rotating motor 45 rotates in the opposite direction, driving the lifting rod 5 to rise, so that the discharge pipe 11 is inserted into the dispensing container. At this time, the switch valve 12 is opened, and the raw material powder is input into the dispensing container through the discharge pipe 11. After dispensing for a period of time, the switch valve 12 is closed, and the dispensing container is put back on the conveyor belt 2 under the combined action of the first rotating motor 32 and the second rotating motor 45 to continue conveying, thereby realizing the automatic dispensing of raw material powder. This improves the problem that the raw material powder is very easy to cause powder to fly during the falling process, which will not only cause measurement deviation during dispensing, but also affect the processing environment.

[0040] The above are all optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic dispensing equipment for pharmaceutical raw material powders, characterized in that: The device includes a hopper and a conveyor belt. The hopper is located above the conveyor belt, and a discharge pipe is provided at the bottom of the hopper. A switch valve is provided on the discharge pipe. A mounting bracket is provided at the bottom of the hopper. Two sliders are slidably connected to each other on both sides of the mounting bracket. A lifting rod is slidably connected to the sliders on the vertical side. Clamping blocks are provided on the bottom sides of the two lifting rods that are close to each other. A driving mechanism is provided on the mounting bracket to drive the two sliders to move closer or further apart. A lifting mechanism is provided on the sliders to drive the lifting rods to move up and down.

2. The automatic dispensing equipment for pharmaceutical raw material powder according to claim 1, characterized in that: The driving mechanism includes a double-ended lead screw and a first rotating motor. The double-ended lead screw is rotatably connected to the mounting bracket around the sliding direction of the slider. Both ends of the double-ended lead screw are respectively threaded onto a slider and connected to the slider. The first rotating motor is mounted on the mounting bracket, and the rotating shaft of the first rotating motor is connected to the double-ended lead screw.

3. The automatic dispensing equipment for raw pharmaceutical powder according to claim 1, characterized in that: The lifting mechanism includes a gear, a rack, and a rotating assembly. The gear is rotatably connected to the slider, the rack is vertically mounted on the lifting rod, and the gear meshes with the rack. The rotating assembly is mounted on the slider to drive the gear to rotate.

4. The automatic dispensing equipment for raw pharmaceutical powder according to claim 3, characterized in that: The rotating assembly includes a worm gear, a worm, and a second rotating motor. The worm gear is coaxially connected to a gear, the worm is rotatably connected to a slider, and the worm meshes with the worm gear. The second rotating motor is mounted on the slider, and the rotating shaft of the second rotating motor is connected to the worm.

5. The automatic dispensing equipment for raw pharmaceutical powder according to claim 1, characterized in that: The top of the hopper is equipped with a third rotating motor along the vertical direction. The rotating shaft of the third rotating motor is equipped with a rotating rod, which extends into the discharge pipe. The rotating rod is equipped with helical blades.

6. The automatic dispensing equipment for pharmaceutical raw material powder according to claim 5, characterized in that: The rotating rod is equipped with a connecting rod, and the connecting rod is equipped with a scraper, which abuts against the inner wall of the hopper.

7. The automatic dispensing equipment for raw pharmaceutical powder according to claim 1, characterized in that: Both clamping blocks are provided with buffer blocks on one side close to each other, and a buffer spring is connected between the buffer block and the clamping block.

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