Weighing mechanism of medicine dispensing machine
Technical Field
The invention relates to a weighing mechanism of a medicine dispensing machine, and belongs to the field of traditional Chinese medicine dispensing machines.
Background
Chinese traditional medicine culture is of great origin and Chinese traditional medicine resources are abundant. However, in the export amount of traditional Chinese medicines in the world, china only occupies a small part, and the main reasons are that the traditional medicine dispensing mode of original crude medicines, manual grasping and weighing is still adopted in China, the speed is low in the traditional Chinese medicine dispensing process, the metering error is large, and the international market connection with the standardized, standardized and scientific medicine dispensing is difficult.
To the device of the medicine cover that can evenly take medicine among the prior art, say: the name is a novel medicine discharging cover, and the patent number is 201520798611.5 or the medicine discharging cover in fig. 4. The mechanism capable of weighing the medicine discharging amount of the medicine discharging cover in real time realizes weighing, moving or rotating of the medicine box.
Disclosure of Invention
The invention aims at: aiming at the problems, the weighing mechanism of the medicine dispensing machine is provided, the medicine boxes are weighed through the arrangement of a plurality of weighing sensors, the medicine boxes are weighed in batches, and the industrial production and the automatic production of the medicine dispensing machine are facilitated; the medicine box for adding medicine can be weighed in real time, so that the accuracy of medicine adding is ensured.
The technical scheme adopted by the invention is as follows:
the invention relates to a weighing mechanism of a medicine dispensing machine, which is used for weighing a medicine box in real time when the medicine dispensing machine adds medicine to the medicine box, and comprises a weighing table, a weighing sensor and a tray; the periphery of the weighing table is connected with a plurality of weighing sensors, and each weighing sensor is provided with a tray capable of placing a medicine box; each weighing sensor is electrically connected with the weighing circuit respectively. The medicine box weighing device is simple in structure and can achieve real-time weighing and batch weighing of medicine boxes.
Further, a medicine box table is arranged above the weighing table, a plurality of operation stations for taking and placing medicine boxes are arranged on the medicine box table, and a tray is correspondingly arranged below each operation station; the weighing platform and the medicine box platform move relatively in the vertical direction, so that the medicine box can be placed on the tray for weighing. The structure is characterized in that the medicine box is borne by the medicine box table, the weighing table weighs in real time during medicine filling, and the medicine box table is lifted again when the medicine filling amount is enough, and the medicine box table enters the next operation of sealing and the like, so that the industrialization and the automation of the medicine dispensing machine are facilitated.
Further, when the medicine box table relatively descends, the tray supports the medicine boxes for weighing; when the medicine box table rises relatively, the medicine box table brings up the medicine box, and the medicine box is separated from the tray.
Further, the weighing platform is connected with a lifting mechanism, and the lifting mechanism controls the relative lifting of the weighing platform and the medicine box platform; the lifting mechanism comprises a lifting table and a lifting motor; the lifting shaft of the lifting motor is fixed relative to the weighing platform, and the shell is fixed relative to the lifting platform. The lifting mechanism can be lifted or used rapidly, and is simple in structure, and lifting stability and lifting speed are improved.
Further, the medicine box table is connected with a rotating mechanism, and the rotating mechanism comprises a rotating seat, a rotating motor, a driven wheel and a driving wheel; the driven wheel is rotatably arranged on the rotating seat and is relatively fixed with the medicine box disc, the rotating motor is connected with the driving wheel and drives the driven wheel in a gear driving, chain driving or belt driving mode, and the rotating motor is fixed relative to the rotating seat.
Further, a base frame is connected below the weighing platform, and comprises a base platform and a plurality of limiting cylinders; the limiting cylinder is vertically arranged and connected between the base station and the weighing station.
Further, the rotating motor is fixed on the lifting platform, the lifting platform is fixedly connected with the rotating seat, and the lifting motor is connected between the rotating seat and the base platform; the lower part of the lifting platform is connected with a plurality of guide sleeves, a guide shaft is coaxially arranged in the limiting cylinder, and the guide sleeves are sleeved on the guide shaft in a matched manner and are used for limiting the rotation of the lifting platform, which is equivalent to the weighing platform. The lifting platform only vertically lifts and does not rotate, so that dislocation of the medicine box and the weighing platform can be prevented.
Further, the medicine box table is disc-shaped and is uniformly provided with 2-16 operation stations, and the operation stations are through holes matched with the side walls of the medicine boxes; two sides of the through hole are provided with a picking and placing groove for picking and placing medicine boxes, and an alignment hole is arranged on the medicine box table at the inner side of the medicine box position. The taking and placing groove can be convenient for fingers to insert, so that the medicine box can be taken and placed quickly.
A medicine dispensing machine adopts the weighing mechanism.
A production line adopts the weighing mechanism.
The weighing circuit adopts a circuit connection structure in the prior art to convert the analog quantity measured by the sensor into a digital quantity for intelligent control and measurement.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. the structure has the advantages that the medicine box is borne by the medicine box table, is weighed in real time by the weighing table during medicine filling, is supported by the medicine box table again when the medicine amount is enough, and enters the next operation such as sealing, so that the industrialization and the automation of the medicine dispensing machine are facilitated;
2. the medicine box safety weighing device is simple in structure and convenient to use, can quickly realize safe production of the medicine box, can be favorable for the medicine box to be independent of each production link in a medicine dispensing process, and can weigh the medicine dispensing quantity in real time.
Drawings
FIG. 1 is a disassembled view of the rotation, lifting and weighing mechanism of the dispensing machine;
FIG. 2 is an assembly view of the rotation, lifting and weighing mechanism of the dispensing machine;
FIG. 3 is a diagram of the overall construction of the dispensing machine;
fig. 4 is a diagram of a vial structure with a drug delivery cap for a drug delivery machine.
The marks in the figure: the device comprises a 1-base frame, a 11-base station, a 12-limiting cylinder, a 2-lifting mechanism, a 21-lifting shaft, a 22-manual adjusting wheel, a 23-lifting motor, a 24-guiding shaft, a 25-guiding sleeve, a 26-lifting table, a 3-weighing mechanism, a 31-tray, a 32-weighing sensor, a 33-weighing table, a 4-rotating mechanism, a 41-rotating motor, a 42-rotating bearing, a 43-driving wheel, a 44-driven wheel, a 45-rotating seat, a 5-medicine box, a 6-medicine box table, a 61-operating station, a 7-first sensor, a 8-second sensor, a 9-lower medicine cover, a 91-moving cover body and a 92-fixed cover body.
Detailed Description
As shown in fig. 1-4, the dispensing machine of the present invention comprises a cabinet, a faceplate, a medicine box table 6 and a medicine box control mechanism. The top opening of the cabinet body is provided with a panel which is movably connected in a hinged manner and is covered at the top opening; the medicine box table 6 is connected to the top of the medicine box 5 control mechanism and is arranged in the cabinet body.
The medicine box table 6 is disc-shaped, 2-16 operation stations 61 for taking and placing medicine boxes 5 are uniformly distributed on the medicine box table 6, the operation stations 61 are through holes or through grooves matched with the medicine boxes 5, each operation station 61 is provided with a taking and placing groove for taking and placing the medicine boxes 5, an alignment hole for alignment of workers is formed in the inner side of each operation station 61, and an alignment part matched with the alignment hole is formed in the medicine box 5. When the panels are covered, a medicine discharging mechanism is correspondingly arranged right above each operation station 61.
The panel is provided with 2-16 through holes, a medicine discharging mechanism is arranged at the through holes, the medicine discharging mechanism is matched with a medicine discharging cover 9 shown in fig. 4 to realize medicine discharging, the medicine discharging mechanism comprises a fixed clamping ring and a movable clamping ring which are axially overlapped, the medicine discharging mechanism is provided with a fixed cover body 92 and a movable cover body 91 which are respectively matched with the fixed clamping ring and the movable clamping ring, and the fixed cover body 92 and the movable cover body 91 are relatively rotated by rotating the movable clamping ring, so that medicine powder or granules in a medicine bottle are ensured to fall under the action of gravity.
The medicine box control mechanism comprises a rotating mechanism 4, a lifting mechanism 2, a weighing mechanism 3 and a base frame 1.
The weighing mechanism 3 comprises a tray 31, a weighing sensor 32, a weighing circuit thereof and a weighing table 33; the base frame 1 comprises a base 11 and a limiting cylinder 12. The weighing circuit converts the analog quantity measured at the location of the load cell 32 into a digital quantity in a conventional manner. The weighing mechanism is used for weighing the medicine box 5 in real time when the medicine dispensing machine adds medicine to the medicine box 5; the periphery of the weighing table 33 is connected with a plurality of weighing sensors 32, and each weighing sensor 32 is provided with a tray 31 for placing the medicine box 5; each load cell 32 is electrically connected to a corresponding load circuit. The medicine box table 6 is positioned above the weighing table 33, and a tray 31 is correspondingly arranged below each operation station 61 of the medicine box table 6; the weighing table 33 and the medicine box table 6 are vertically moved relatively, so that the medicine box 5 can be placed on the tray 31 for weighing.
The lifting mechanism 2 includes a lifting shaft 21, a manual adjustment wheel 22, a lifting motor 23, a guide shaft 24, a guide bush 25, and a lifting table 26. The lifting mechanism 2 is connected with the weighing platform 33 through a base frame, and the lifting mechanism 2 controls the relative lifting of the weighing platform 33 and the medicine box platform 6; the lifting mechanism 2 comprises a lifting table 26 and a lifting motor 23; the lifting shaft of the lifting motor 23 is fixed relative to the weighing table 33 and the housing is fixed relative to the lifting table 26. The weighing platform 33 supports the medicine box 5 for weighing when the medicine box platform 6 relatively descends; when the medicine box table 6 is relatively lifted, the medicine box table 6 brings up the medicine box 5, and the medicine box 5 is separated from the tray 31.
The lower part of the medicine box table 6 is connected with a rotating mechanism 4, and the rotating mechanism 4 comprises a rotating motor 41, a rotating bearing 42, a driving wheel 43, a driven wheel 44 and a rotating seat 45. The driven wheel 44 is rotatably disposed on the rotary seat 45 and fixed relative to the disc of the medicine box 5, the rotary motor 41 is connected with the driving wheel 43 and drives the driven wheel 44 in a gear driving, chain driving or belt driving manner, and the rotary motor 41 is fixed relative to the rotary seat 45. A base frame 1 is connected below the weighing platform 33, and the base frame 1 comprises a base table 11 and a plurality of limiting cylinders 12; the limiting cylinder 12 is vertically arranged and connected between the base 11 and the weighing platform 33. The rotating motor 41 is fixed on the lifting table 26, the lifting table 26 is fixedly connected with the rotating seat 45, and the lifting motor 23 is connected between the rotating seat 45 and the base 11; a plurality of guide sleeves 25 are connected to the lower part of the lifting table 26, a guide shaft 24 is coaxially arranged in the limiting cylinder 12, and the guide sleeves 25 are matched and arranged on the guide shaft and are used for limiting the rotation of the lifting table 26 corresponding to the weighing table 33.
The first sensor 7 is arranged on the lifting table 26, and the second sensor 8 is arranged on the weighing table 33; the first sensor 7 is used for detecting whether the operation station 61 of the medicine box table 6 is rotated to a specified position, and the second sensor 8 is used for detecting whether the medicine box table 6 is lowered to the specified position along with the elevating table 26.
When the device is used, the medicine box 5 is required to be manually loaded into the operation station 61, the rotation motor 41 drives the medicine box table 6 to rotate, when the medicine box table 6 rotates to a designated position and then stops, the medicine discharging mechanism, the operation station 61 and the tray 31 axially overlap, the lifting motor 23 controls the medicine box table 6 to descend, after the movement distance is reduced, the medicine box 5 falls onto the tray 31 of the weighing table 33, the medicine box table 6 continues to descend, so that the medicine box 5 is separated from the medicine box table 6 and is supported by the tray, and at the moment, the medicine box 5 is in a jacking state relative to the medicine box table 6; after the medicine adding is completed, the lifting motor 23 controls the medicine box table 6 to lift, the medicine box table 6 drives the medicine box 5 to be separated from the tray, and then the medicine box 5 is carried to the next production links such as sealing and the like by moving the medicine box table 6.
In the lifting process, the lifting table 26 and the lifting seat lift along with the shell of the lifting motor 23, the middle part of the lifting motor 23 is provided with a threaded lifting shaft 21, the lifting motor 23 is positioned in the middle part of the base, the periphery of the lifting motor 23 is provided with a guide sleeve 25 and a guide shaft 24, the base is provided with a limiting cylinder 12, the guide shaft 24 is fixedly arranged in the middle part of the limiting cylinder 12, the guide sleeve 25 is fixedly connected with the lifting table 26 and is matched and sleeved between the guide shaft 24 and the wire guide cylinder, and the guide sleeve 25 is used for limiting the rotation of the lifting table 26.