CN113739885A - Soft capsule liquid precise filling weighing device and weighing method - Google Patents
Soft capsule liquid precise filling weighing device and weighing method Download PDFInfo
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- CN113739885A CN113739885A CN202111030502.5A CN202111030502A CN113739885A CN 113739885 A CN113739885 A CN 113739885A CN 202111030502 A CN202111030502 A CN 202111030502A CN 113739885 A CN113739885 A CN 113739885A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J3/00—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms
- A61J3/07—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms into the form of capsules or similar small containers for oral use
- A61J3/078—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms into the form of capsules or similar small containers for oral use into the form of wafers or cachets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
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Abstract
The invention relates to a soft capsule liquid precise filling weighing device, which comprises a first positioning ring, a second positioning ring, a distance adjusting assembly and a plurality of metering valves, wherein the first positioning ring is arranged on the upper side of the soft capsule liquid; the metering valve comprises a metering cylinder, a piston rod and a driving assembly, the metering cylinder is obliquely arranged, the liquid outlet end of the metering cylinder faces downwards, and a gap is formed between the piston rod and the liquid level in the metering cylinder; a sliding positioning assembly is arranged on the first positioning ring, and a hinge seat is arranged on the outer side surface of the second positioning ring; the outer side surface of the first positioning ring is provided with an annular light source, the outer wall of the metering cylinder is provided with scales, and the inner wall of the second positioning ring is provided with a vision camera; the control host receives shooting data of the visual camera and controls the operation of the distance adjusting assembly and the driving assembly; the overall structure is reasonable and compact, and through the mode of visual identification scale interval, the risk and the error of traditional equipment because of mechanical aging brought have been avoided completely, can also carry out the fine adjustment of precision through inclination's mode simultaneously.
Description
Technical Field
The invention relates to the technical field of soft capsule processing, in particular to a soft capsule liquid precise filling weighing device and a weighing method.
Background
The soft capsule processing is generally carried out by adopting a pressing method and a dropping method, wherein the pressing method is widely used due to good shape plasticity and large volume of loaded liquid medicine;
the measuring pump that adopts at present mostly relies on mechanical part's distance of marcing to measure, however this kind of mode uses after the certain time at equipment, along with circumstances such as mechanical ageing can make the measurement precision appear irreversible reduction, need carry out the part and change or whole measuring pump is changed, still can bring the unstable factor for measurement production simultaneously.
Disclosure of Invention
The invention aims to solve the technical problem of providing a soft capsule liquid precise filling weighing device and a weighing method aiming at the defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
constructing a soft capsule liquid precise filling weighing device, wherein the device comprises a first positioning ring and a second positioning ring which are vertically arranged and are horizontal, a distance adjusting component for adjusting the height of the first positioning ring and a plurality of metering valves which are distributed in a circular ring shape; the metering valve comprises a metering cylinder, a piston rod extending into the metering cylinder and a driving assembly for driving the piston rod to move, the metering cylinder is obliquely arranged, a liquid outlet end of the metering cylinder faces downwards, and a gap is formed between the piston rod and the liquid level in the metering cylinder; a sliding positioning assembly for positioning the upper end of the metering cylinder in a sliding manner is arranged on the first positioning ring, and a hinge seat which is rotatably connected with the lower end of the metering cylinder is arranged on the outer side surface of the second positioning ring; the outer side surface of the first positioning ring is provided with an annular light source emitting light downwards, the outer wall of the metering cylinder is provided with scales, and the inner wall of the second positioning ring is provided with a visual camera for photographing the scales on the metering cylinders simultaneously; the control host receives shooting data of the visual camera and controls the distance adjusting assembly and the driving assembly to operate.
The invention relates to a soft capsule liquid precision filling weighing device, wherein a sliding positioning assembly comprises notch grooves which are arranged on the outer side surface of a first positioning ring and correspond to metering cylinders one by one, and rotating shafts are arranged in the notch grooves; the sliding positioning assembly further comprises a sliding rail arranged on the outer side surface of the metering cylinder and a sliding block arranged on the sliding rail in a sliding mode, and the rotating shaft penetrates through the sliding block.
The invention relates to a soft capsule liquid precise filling weighing device, wherein a driving assembly comprises a precise screw rod and a servo motor for driving the precise screw rod; the servo motor is fixedly arranged on the outer side surface of the metering cylinder.
The invention relates to a soft capsule liquid precision filling weighing device, wherein an annular light source is coaxially sleeved on the periphery of a first positioning ring, and the annular light source and the first positioning ring are fixedly connected through a plurality of connecting rods.
The invention relates to a soft capsule liquid precise filling weighing device, wherein a distance adjusting component comprises a lifting screw rod for driving a first positioning ring to lift and a stepping motor for driving the lifting screw rod.
The invention relates to a soft capsule liquid precision filling weighing device, which further comprises a shell, wherein the shell is covered on the first positioning ring, and the lower end of the shell is fixedly connected with the second fixing ring; the shell is provided with a plurality of openings for the metering valve to extend out; the casing is internally provided with an installation lifting screw rod and a mounting plate of the stepping motor.
The invention relates to a soft capsule liquid precision filling weighing device, wherein a plurality of liquid replenishing pumps for replenishing liquid to a metering cylinder correspondingly, an air pressure adjusting component for adjusting air pressure in the metering cylinder, a first air pipe and a second air pipe which are arranged on a piston rod in a penetrating way are arranged in a shell; the first air pipe is connected with the fluid infusion pump and is provided with a first electromagnetic valve, and the second air pipe is connected with the air pressure adjusting assembly and is provided with a second electromagnetic valve;
the air pressure adjusting assembly comprises a pressure sensor for detecting the internal pressure of the second air pipe, an injection cylinder for exhausting air from the second air pipe and a linear driver for driving the injection cylinder.
The method for precisely filling and weighing the soft capsule liquid is applied to the device for precisely filling and weighing the soft capsule liquid, and the implementation method comprises the following steps:
under the condition that the measuring cylinder is kept at a first set inclination angle, a vision camera shoots to obtain a current scale reading of liquid in the measuring cylinder, and then a first target scale reading corresponding to the first volume of liquid needing to be output is calculated and obtained according to the cross section area of the liquid in the measuring cylinder corresponding to the current inclination angle;
under the shooting confirmation of the vision camera, the control host controls the driving assembly to operate to drive the piston rod to move and extrude, so that the liquid in the metering cylinder is discharged until the first target scale reading is reached, and the rough filling action is finished;
the control host controls the distance adjusting assembly to enable the first positioning ring to ascend and drive the height of the upper end of the metering cylinder to ascend until the inclination angle of the metering cylinder reaches a second set inclination angle; the method comprises the steps that a vision camera shoots to obtain a current scale reading of liquid in a measuring cylinder, and then a second target scale reading corresponding to the liquid with a second volume needing to be output is calculated and obtained according to the cross section area of the liquid in the measuring cylinder corresponding to a current inclination angle;
under the confirmation of shooing of vision camera, the control host computer control drive assembly operation drives the piston rod and removes the extrusion for liquid discharge in the metering cylinder reaches second target scale reading, accomplishes the accurate filling action.
The invention has the beneficial effects that: during filling, under the condition that the measuring cylinder is kept at a first set inclination angle, a vision camera shoots to obtain a current scale reading of liquid in the measuring cylinder, and then a first target scale reading corresponding to the first volume of liquid needing to be output is calculated and obtained according to the cross section area of the liquid in the measuring cylinder corresponding to the current inclination angle; under the shooting confirmation of the vision camera, the control host controls the driving assembly to operate to drive the piston rod to move and extrude, so that the liquid in the metering cylinder is discharged until the first target scale reading is reached, and the rough filling action is finished; the control host controls the distance adjusting assembly to enable the first positioning ring to ascend and drive the height of the upper end of the metering cylinder to ascend until the inclination angle of the metering cylinder reaches a second set inclination angle; the method comprises the steps that a vision camera shoots to obtain a current scale reading of liquid in a measuring cylinder, and then a second target scale reading corresponding to the liquid with a second volume needing to be output is calculated and obtained according to the cross section area of the liquid in the measuring cylinder corresponding to a current inclination angle; under the shooting confirmation of the vision camera, the control host controls the driving assembly to operate to drive the piston rod to move and extrude, so that the liquid in the metering cylinder is discharged until the second target scale reading is reached, and the precise filling action is finished; the overall structure is reasonable and compact, and through the mode of visual identification scale interval, risk and error that traditional equipment brought because of mechanical aging have been avoided completely, can also carry out the fine adjustment of precision through inclination angle adjustment's mode simultaneously, make its suitability strengthen greatly, can also carry out automatic filling processing operation in batches in addition.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:
FIG. 1 is a schematic structural diagram of a precise soft capsule liquid filling weighing device according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural view of a liquid supplement pump and an air pressure adjusting assembly of the soft capsule liquid precision filling weighing device according to the preferred embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
As shown in fig. 1 and also shown in fig. 2, the precise soft capsule liquid filling weighing device according to the preferred embodiment of the present invention includes a first positioning ring 1 and a second positioning ring 2 which are vertically arranged and are both horizontal, a distance adjusting assembly 3 for adjusting the height of the first positioning ring 1, and a plurality of metering valves 4 which are distributed in a circular ring shape; the metering valve 4 comprises a metering cylinder 40, a piston rod 41 extending into the metering cylinder 40 and a driving assembly 42 for driving the piston rod 41 to move, the metering cylinder 40 is obliquely arranged, the liquid outlet end of the metering cylinder is downward, and a gap 43 is formed between the piston rod 41 and the liquid level in the metering cylinder 40; a sliding positioning component 5 for positioning the upper end of the metering cylinder 4 in a sliding manner is arranged on the first positioning ring 1, and a hinge seat 20 which is rotatably connected with the lower end of the metering cylinder 40 is arranged on the outer side surface of the second positioning ring 2; the outer side surface of the first positioning ring 1 is provided with an annular light source 10 emitting light downwards, the outer wall of the metering cylinder 4 is provided with scales, and the inner wall of the second positioning ring 2 is provided with a visual camera 21 for taking pictures of the scales on the metering cylinders 40; the control host machine is used for receiving shooting data of the visual camera 21 and controlling the operation of the distance adjusting assembly 3 and the driving assembly 42;
during filling, in a state that the measuring cylinder 40 is kept at a first set inclination angle, the vision camera 21 shoots to obtain a current scale reading of the liquid in the measuring cylinder 40, and then a first target scale reading corresponding to the first volume of liquid to be output is calculated and obtained according to the cross section area of the liquid in the measuring cylinder 40 corresponding to the current inclination angle; under the confirmation of the shooting of the vision camera 21, the control host controls the driving component 42 to operate to drive the piston rod 41 to move and extrude, so that the liquid in the metering cylinder 40 is discharged until the first target scale reading is reached, and the rough filling action is completed;
the control host controls the distance adjusting assembly 3 to enable the first positioning ring 1 to ascend and drive the height of the upper end of the metering cylinder 40 to ascend until the inclination angle of the metering cylinder 40 reaches a second set inclination angle; the vision camera 21 shoots to obtain a current scale reading of the liquid in the measuring cylinder 40, and then calculates to obtain a second target scale reading corresponding to the liquid with the second volume needing to be output according to the cross section area of the liquid in the measuring cylinder 40 corresponding to the current inclination angle; under the confirmation of the shooting of the vision camera 21, the control host controls the driving assembly 42 to operate to drive the piston rod 41 to move and extrude, so that the liquid in the metering cylinder 40 is discharged until the second target scale reading is reached, and the precise filling action is completed;
the overall structure is reasonable and compact, and through the mode of visual identification scale interval, the risk and the error of traditional equipment because of mechanical aging brought have been avoided completely, and the while can also carry out the fine adjustment of precision through inclination angle adjustment's mode, makes its suitability strengthen greatly.
Preferably, the sliding positioning assembly 5 includes a notch 50 disposed on the outer surface of the first positioning ring 1 and corresponding to the metering cylinders 40, and a rotating shaft 51 is disposed in the notch 50; the sliding positioning assembly 5 further comprises a sliding rail 52 arranged on the outer side surface of the metering cylinder 40 and a sliding block 53 arranged on the sliding rail, and the rotating shaft 51 penetrates through the sliding block 53; the sliding positioning has good reliability and is not easy to loosen.
Preferably, the driving assembly 42 includes a precision screw rod 420 and a servo motor 421 for driving the same; the servo motor 421 is fixedly provided on the outer side surface of the measuring cylinder 40.
Preferably, the annular light source 10 is coaxially sleeved on the periphery of the first positioning ring 1, and the annular light source 10 and the first positioning ring 1 are fixedly connected through a plurality of connecting rods 11; reasonable and compact structure and high space utilization rate.
Preferably, the distance adjusting assembly 3 comprises a lifting screw rod 30 for driving the first positioning ring 1 to lift and a stepping motor 31 for driving the lifting screw rod; the control precision is high, and the structure is simple; some conventional guide assemblies can be added to ensure the stability and the precision of the lifting of the first positioning ring.
Preferably, the soft capsule liquid precision filling weighing device also comprises a shell 6, wherein the shell 6 covers the first positioning ring 1, and the lower end of the shell is fixedly connected with the second fixing ring 2; the shell 6 is provided with a plurality of openings 60 corresponding to the extension of the metering valve 40; a mounting plate 61 for mounting the lifting screw rod 30 and the stepping motor 31 is arranged in the shell 6; the wholeness is good, and it is all comparatively convenient to install the removal.
Preferably, a plurality of fluid replenishing pumps 62 for replenishing the fluid to the measuring cylinder 40, a gas pressure adjusting unit 63 for adjusting the gas pressure in the measuring cylinder 40, and a first gas pipe 64 and a second gas pipe 65 penetrating the piston rod 41 are provided in the housing 6; the first air pipe 64 is connected with the fluid infusion pump 62 and is provided with a first electromagnetic valve 640, and the second air pipe 65 is connected with the air pressure regulating assembly 63 and is provided with a second electromagnetic valve 650;
the air pressure adjusting assembly 63 includes a pressure sensor 630 for detecting the pressure inside the second air tube, a syringe 631 for exhausting air from the second air tube, and a linear driver 632 for driving the syringe;
liquid can be supplemented into the metering cylinder through a liquid supplementing pump, and the first electromagnetic valve is closed after the liquid is supplemented;
the piston that drives the injection tube through the sharp driver removes and adjusts the second trachea internal gas pressure invariant, and then the atmospheric pressure in the guarantee metering cylinder is invariable, and this kind of mode not only can ensure the stability when extruding out the liquid, can exhaust for the metering cylinder when the fluid infusion simultaneously, can also reduce the liquid level through slight pressure boost when the metering cylinder carries out the slope adjustment and resume stable time.
The method for precisely filling and weighing the soft capsule liquid is applied to the device for precisely filling and weighing the soft capsule liquid, and the implementation method comprises the following steps:
under the condition that the measuring cylinder is kept at a first set inclination angle, a vision camera shoots to obtain a current scale reading of liquid in the measuring cylinder, and then a first target scale reading corresponding to the first volume of liquid needing to be output is calculated and obtained according to the cross section area of the liquid in the measuring cylinder corresponding to the current inclination angle;
under the shooting confirmation of the vision camera, the control host controls the driving assembly to operate to drive the piston rod to move and extrude, so that the liquid in the metering cylinder is discharged until the first target scale reading is reached, and the rough filling action is finished;
the control host controls the distance adjusting assembly to enable the first positioning ring to ascend and drive the height of the upper end of the metering cylinder to ascend until the inclination angle of the metering cylinder reaches a second set inclination angle; the method comprises the steps that a vision camera shoots to obtain a current scale reading of liquid in a measuring cylinder, and then a second target scale reading corresponding to the liquid with a second volume needing to be output is calculated and obtained according to the cross section area of the liquid in the measuring cylinder corresponding to a current inclination angle;
under the shooting confirmation of the vision camera, the control host controls the driving assembly to operate to drive the piston rod to move and extrude, so that the liquid in the metering cylinder is discharged until the second target scale reading is reached, and the precise filling action is finished;
the overall structure is reasonable and compact, and through the mode of visual identification scale interval, the risk and the error of traditional equipment because of mechanical aging brought have been avoided completely, and the while can also carry out the fine adjustment of precision through inclination angle adjustment's mode, makes its suitability strengthen greatly.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (8)
1. The precise soft capsule liquid filling and weighing device is characterized by comprising a first positioning ring and a second positioning ring which are vertically arranged and are horizontal, a distance adjusting assembly for adjusting the height of the first positioning ring and a plurality of metering valves which are distributed in a circular ring shape; the metering valve comprises a metering cylinder, a piston rod extending into the metering cylinder and a driving assembly for driving the piston rod to move, the metering cylinder is obliquely arranged, a liquid outlet end of the metering cylinder faces downwards, and a gap is formed between the piston rod and the liquid level in the metering cylinder; a sliding positioning assembly for positioning the upper end of the metering cylinder in a sliding manner is arranged on the first positioning ring, and a hinge seat which is rotatably connected with the lower end of the metering cylinder is arranged on the outer side surface of the second positioning ring; the outer side surface of the first positioning ring is provided with an annular light source emitting light downwards, the outer wall of the metering cylinder is provided with scales, and the inner wall of the second positioning ring is provided with a visual camera for photographing the scales on the metering cylinders simultaneously; the control host receives shooting data of the visual camera and controls the distance adjusting assembly and the driving assembly to operate.
2. The precise soft capsule liquid filling weighing device of claim 1, wherein the sliding positioning assembly comprises a notch groove which is arranged on the outer side surface of the first positioning ring and corresponds to the metering cylinder one by one, and a rotating shaft is arranged in the notch groove; the sliding positioning assembly further comprises a sliding rail arranged on the outer side surface of the metering cylinder and a sliding block arranged on the sliding rail in a sliding mode, and the rotating shaft penetrates through the sliding block.
3. The precise soft capsule liquid filling and weighing device of claim 2, wherein the driving assembly comprises a precise screw rod and a servo motor for driving the precise screw rod; the servo motor is fixedly arranged on the outer side surface of the metering cylinder.
4. The precise soft capsule liquid filling and weighing device of claim 3, wherein the annular light source is coaxially sleeved on the periphery of the first positioning ring, and the annular light source and the first positioning ring are fixedly connected through a plurality of connecting rods.
5. The precise soft capsule liquid filling and weighing device of any one of claims 1 to 4, wherein the distance adjusting assembly comprises a lifting screw rod for driving the first positioning ring to lift and a stepping motor for driving the lifting screw rod.
6. The soft capsule liquid precision filling weighing device of claim 5, characterized in that the soft capsule liquid precision filling weighing device further comprises a shell, the shell is covered on the first positioning ring, and the lower end of the shell is fixedly connected with the second fixing ring; the shell is provided with a plurality of openings for the metering valve to extend out; the casing is internally provided with an installation lifting screw rod and a mounting plate of the stepping motor.
7. The precise soft capsule liquid filling and weighing device of claim 6, wherein a plurality of liquid replenishing pumps for replenishing liquid to the metering cylinder, a gas pressure adjusting component for adjusting gas pressure inside the metering cylinder, and a first gas pipe and a second gas pipe penetrating the piston rod are arranged inside the shell; the first air pipe is connected with the fluid infusion pump and is provided with a first electromagnetic valve, and the second air pipe is connected with the air pressure adjusting assembly and is provided with a second electromagnetic valve;
the air pressure adjusting assembly comprises a pressure sensor for detecting the internal pressure of the second air pipe, an injection cylinder for exhausting air from the second air pipe and a linear driver for driving the injection cylinder.
8. A soft capsule liquid precision filling weighing method, which applies the soft capsule liquid precision filling weighing device of any one of claims 1-7, and is characterized in that the realization method is as follows:
under the condition that the measuring cylinder is kept at a first set inclination angle, a vision camera shoots to obtain a current scale reading of liquid in the measuring cylinder, and then a first target scale reading corresponding to the first volume of liquid needing to be output is calculated and obtained according to the cross section area of the liquid in the measuring cylinder corresponding to the current inclination angle;
under the shooting confirmation of the vision camera, the control host controls the driving assembly to operate to drive the piston rod to move and extrude, so that the liquid in the metering cylinder is discharged until the first target scale reading is reached, and the rough filling action is finished;
the control host controls the distance adjusting assembly to enable the first positioning ring to ascend and drive the height of the upper end of the metering cylinder to ascend until the inclination angle of the metering cylinder reaches a second set inclination angle; the method comprises the steps that a vision camera shoots to obtain a current scale reading of liquid in a measuring cylinder, and then a second target scale reading corresponding to the liquid with a second volume needing to be output is calculated and obtained according to the cross section area of the liquid in the measuring cylinder corresponding to a current inclination angle;
under the confirmation of shooing of vision camera, the control host computer control drive assembly operation drives the piston rod and removes the extrusion for liquid discharge in the metering cylinder reaches second target scale reading, accomplishes the accurate filling action.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111030502.5A CN113739885A (en) | 2021-09-03 | 2021-09-03 | Soft capsule liquid precise filling weighing device and weighing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111030502.5A CN113739885A (en) | 2021-09-03 | 2021-09-03 | Soft capsule liquid precise filling weighing device and weighing method |
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