CN111361865B - Granular medicament dispensing device, dispensing unit and dispensing method - Google Patents

Abstract

The invention relates to the technical field of automatic blending of granular medicaments, and provides a dispensing device designed for realizing automatic dispensing. The dispensing device is not in contact with the medicament in the process of adjusting the dosage and dropping the medicament, so that the condition of medicament property change caused by repeatedly pushing the medicament is avoided, and the dispensing precision is improved to a greater extent. The invention also provides a dispensing unit for driving the dispensing device to operate. The dispensing unit has the remarkable advantage that the bidirectional medicine output quantity adjusting and driving mechanism ensures that the contact surface of the corresponding adjusting mechanism and the medicine is only acted by a unidirectional force, so that the wear is less after long-time use, and the repeated adjusting precision can be ensured. The invention also provides a medicine dispensing method which is adaptive to the medicine dispensing device, under the condition of multiple medicine dispensing, the medicine adding adjusting body only needs to be operated once, and compared with the existing bin type medicine dispensing method, the volume needs to be adjusted every time medicine is added, the efficiency is improved, and the consistency of multiple medicine dispensing is ensured.

Description

Granular medicament dispensing device, dispensing unit and dispensing method

Technical Field

The invention relates to the technical field of automatic dispensing of granular medicaments, in particular to intelligent dispensing equipment applied to traditional Chinese medicine formula granules, and discloses a dispensing device, a dispensing unit and a corresponding dispensing method for realizing automatic dispensing of the equipment.

Background

As a representative of standardized Chinese medicines, Chinese medicine formula granules are accepted by more and more doctors, and in recent years, the market thereof is facing the development of well-spraying type. Manual dispensing of traditional Chinese medicine formula granules by an operator according to a prescription is very slow and is prone to errors, so that special intelligent dispensing equipment is needed to realize automation and intellectualization of formula granule dispensing. The intelligent dispensing equipment for the traditional Chinese medicine formula particles realizes real-time data interaction with a hospital HIS system through a control computer, automatically acquires prescription information, and completes a series of operations of intelligent prescription checking, automatic dispensing and packaging, printing and labeling and the like, thereby realizing 'robot changing' of a traditional Chinese pharmacy.

The dispensing device, the dispensing unit and the dispensing method provided by the invention are key technical links for realizing automatic dispensing of the intelligent dispensing equipment, and determine the dispensing precision and efficiency to a great extent. The traditional Chinese medicine formula has more varieties of granules and larger property difference, and meanwhile, part of medicaments are easy to change the properties (such as density, hardness, viscosity, granule fluidity and the like) caused by high-temperature moisture; the change of the characters can greatly influence the quality of blending, so that the precision of dispensing is reduced and even blending cannot be carried out.

The existing blending technology comprises a gravity direct medicine falling mode, a magnetic linear medicine falling mode and a bin body type blending mode. These techniques are susceptible to the change of the properties of the medicament, for example, the direct gravity-based falling medicament method cannot be prepared due to the hardening of the medicament or the preparation precision is extremely poor; the blending precision of the magnetic linear medicine falling mode is easily influenced by the magnetism of the medicine; the existing bin type blending mode repeatedly extrudes granular medicaments when the volume of a bin body is adjusted, and meanwhile, the granular medicaments are heated by friction in the extrusion process, so that the properties of the medicaments are changed, and the medicaments are adhered and hardened, so that the dispensing precision is seriously influenced.

In order to solve the above problems, it is necessary to design a dispensing device and a dispensing method thereof to adapt to the actual situation that the properties of the medicament are different greatly and are easy to change, and not affected by the magnetism of the medicament; more importantly, the medicine properties can not be changed and the medicine dispensing precision can not be influenced due to repeated pushing and squeezing of the medicine in the medicine dispensing process.

Disclosure of Invention

Technical problem to be solved

Currently, there are three main technical routes for the formulation of granular drugs: a gravity direct medicine falling mode, a magnetic linear medicine falling mode and a bin body type blending mode.

The gravity direct medicine falling mode has the advantages of simple original structure and difficulty in controlling precision, and particularly when the medicines are hardened and adhered due to high-temperature humidity, the blending precision of the mode is extremely poor, and even blending cannot be performed. The magnetic force straight line medicine falling mode uses a magnet in the adjusting module, is easily influenced by the magnetism of the medicine, and has extremely unsatisfactory allocation precision for certain medicines with larger magnetism. The bin type blending mode is a widely applied blending mode. At present, the blending technology based on the mode can push the medicament when the volume of a bin body is adjusted and the medicament falls, so that the properties of the medicament are changed; meanwhile, heat is generated by friction motion in the pushing process, so that the medicament with changed properties is adhered and hardened. The existence of such a situation seriously affects the dispensing accuracy.

Aiming at the defects of the prior art, the invention provides a granular medicament dispensing device, a granular medicament dispensing unit and a corresponding granular medicament dispensing method, which can meet the dispensing requirements of granular medicaments with different properties, overcome a plurality of defects in the dispensing technology and realize the precision of the dispensing of the granular medicaments to a higher degree.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme:

a dispensing device of granular medicament comprises a shell and a dispensing adjusting mechanism arranged in the shell, wherein the shell consists of an upper shell and a lower shell, the upper shell is provided with a medicament inlet, the lower shell is provided with a medicament outlet, the dispensing adjusting mechanism consists of a medicament adding rotating body, a medicament adding adjusting body and a medicament adding adjusting top block, the medicament adding rotating body is arranged on two sides of the medicament adding rotating body, the medicament adding rotating body consists of a cylindrical main body and a transmission shaft which are horizontally arranged, the side surface of the cylindrical main body of the medicament adding rotating body is provided with a material transferring bin, a guide hole penetrating through two bottom surfaces is arranged inside the cylindrical main body, the medicament adding adjusting body is provided with a volume adjusting block matched with the material transferring bin and a top rod matched with the guide hole, the medicament adding adjusting top block is arranged on the transmission shaft of the medicament adding rotating body and is connected with the top rod, the medicament adding adjusting top block is driven to horizontally move to adjust the relative position of the volume adjusting block, the medicine feeding and falling are realized by respectively communicating the material transferring bin with the medicine inlet and the medicine falling port when the medicine dispensing adjusting mechanism rotates, and the medicine feeding adjusting body is pushed to reset from one side of the medicine feeding adjusting body after medicine feeding is finished.

The initial state of the dispensing adjusting mechanism is that the opening of the medicine adding rotating body material transferring bin is downward. When the relative position of the volume adjusting block in the transferring bin is moved, the volume adjusting block is not in contact with the medicament in the medicament storage bottle, so that the medicament property change caused by pushing the medicament can not be caused, the phenomenon that the medicament is bonded and hardened due to heat generated by motion friction is avoided, and the dispensing precision is obviously improved.

In addition, the volume is adjusted by generally adopting a push-pull type linear driving mechanism in the conventional volume adjusting mode, and the notches are easy to wear due to repeated bidirectional stress in the same notch, so that the adjustment precision is influenced due to the fact that gaps are easy to appear after the groove is used for a long time. When the volume is adjusted, the volume is pushed and adjusted from the two ends of the dosing adjusting ejector block and the dosing adjusting body, the contact surface of the dosing adjusting body and a medicament is only acted by unidirectional force, the abrasion is less after the device is used for a long time, and the repeated adjustment precision can be ensured.

Furthermore, the cross section of the material transferring bin of the chemical adding rotating body is fan-shaped. Because both sides face is the inclined plane, compare in general lateral wall for perpendicular feed bin, have the medicine that falls completely, be difficult for long-pending material, easily advantage such as maintenance of clearing up. Transfer feed bin based on this kind of design is smooth and easy because of falling the medicine, need not to push out the medicament when falling the medicine, therefore can not push the medicament like other storehouse body formula allotment modes, cause the medicament to cohere at the transfer feed bin lateral wall, is showing and is improving the allotment precision, is convenient for clear up moreover and maintains.

Furthermore, a minimum quantitative volume cavity is arranged at the end part, close to the dosing rotating body, of the volume adjusting block of the dosing adjusting body, and the minimum quantitative volume cavity is set for minimum volume quantification. The minimum quantitative volume cavity is set for minimum volume quantification, and can be combined with stepless variable volume regulation of a transferring bin, and meanwhile, the quantitative blending of small dose and the variable blending of specific dose are realized. The side wall of the minimum quantitative volume cavity is an inclined plane, and compared with a small-hole type minimum volume cavity or a small-groove type minimum volume cavity adopted in other dispensing devices, the design has the advantages of being not easy to block medicaments, easy to clean during blocking and the like.

Furthermore, go up the inside square arch that is equipped with and adds the cylindrical main part both ends complex of medicine rotator of being equipped with of casing, add the cylindrical main part of medicine rotator and form self-sealing structure with square arch. The square bulge in the upper shell is attached to the cylindrical surface of the cylindrical main body on the dosing rotating body, and a small gap is reserved between the square bulge and the cylindrical surface of the cylindrical main body on the dosing rotating body and can prevent most granular medicaments from falling out. Meanwhile, some fine medicinal powder can be accumulated in the gap to achieve the sealing effect. Compared with the common sealing form, such as an O-shaped ring, the sealing structure has the remarkable advantages of no aging, no need of additional accessories and the like.

Furthermore, the two ends of the dosing rotating body are sleeved with dosing rotating friction rings. The tooth-shaped design of the upper outer ring of the dosing rotary friction ring reduces the contact area of the dosing rotary body with the upper shell and the lower shell, so that the resistance caused by the residue of a small amount of medicinal powder is reduced; the inner ring is designed into an annular groove, and the dosing rotating body only makes line contact with the bottom and the side wall of the annular groove when rotating, so that the resistance caused by a small amount of residual medicine powder is reduced.

Furthermore, the upper shell is provided with an air inlet. The air inlet hole plays two roles: on the one hand, when dispensing, the air passes through the inlet port and gets into dispensing device, and the negative pressure state that the equilibrium caused because of falling the medicine for the medicament gets into to change the feed bin more smoothly, improves the precision of dispensing. On the other hand, after dispensing is finished, a dust suction port is arranged below the dispensing unit and communicated with a dust suction device to perform dust removal work, the air inlet hole can increase air inflow, the air flow speed is improved, and the dust removal effect is enhanced.

Furthermore, the front side and the rear side of the upper shell are provided with concave fixing sheaths. The medicine storage bottle is convenient to compress and fix.

Furthermore, the lower shell is provided with a positioning pin hole matched with the position of the medicine storage bottle. The positioning pin is convenient to set to fix the medicine storage bottle.

On the other hand, the invention provides a dispensing unit of granular medicaments, which adopts the dispensing device of the granular medicaments, and comprises a base, a medicament storage bottle fixing mechanism, a medicament feeding rotary driving mechanism and a medicament discharging amount adjusting driving mechanism, wherein the medicament storage bottle fixing mechanism, the medicament feeding rotary driving mechanism and the medicament discharging amount adjusting driving mechanism are arranged on the base, the medicament storage bottle fixing mechanism consists of a left clamping block, a right clamping block and a clamping block driving motor which can move in opposite directions, the medicament feeding rotary driving mechanism comprises a rotary transmission shaft and a transmission bearing seat, the rotary transmission shaft is connected with the rotary driving motor, the medicament discharging amount adjusting driving mechanism comprises a front ejector block, a rear ejector block and a medicament discharging amount adjusting driving motor, the front ejector block, the rear ejector block and the medicament discharging amount adjusting driving mechanism are connected through a linear module, the front ejector block pushes the medicament feeding adjusting ejector block to move horizontally backwards.

After the medicine storage bottle is placed on the medicine storage bottle fixing mechanism, the clamping block driving motor acts to enable the left clamping block and the right clamping block to move synchronously and oppositely to compress the fixed sheath inclined plane of the shell on the dispensing device, so that the medicine storage bottle is fixed. The medicine discharging quantity adjusting driving motor pushes the medicine adding adjusting ejector block in the medicine dispensing device to move through the ejector block before medicine discharging quantity adjustment, the effect of adjusting the volume of the rotary material bin is achieved, after medicine adding is completed, the medicine discharging quantity adjusting driving motor reversely acts, and the medicine adding adjusting body is pushed to move and reset through the ejector block after medicine discharging quantity adjustment.

The existing allocation mode generally adopts a push-pull linear driving mechanism to adjust the volume, and the notch is easy to wear because of repeated bidirectional stress in the same notch, so that the adjustment precision is influenced due to the clearance after long-time use. When the volume is adjusted, the front ejector block pushes the dosing adjusting ejector block to move; after the medicine is added, the rear ejector block pushes the medicine adding adjusting body to move and reset. The contact surface of the dosing regulator and the medicament is only acted by unidirectional force, so that the wear is less after long-time use, and the repeated regulation precision can be ensured.

Furthermore, the left clamping block and the right clamping block are driven to move in opposite directions by the rotation of the screw rod, and the left end and the right end of the screw rod are respectively connected with the left clamping block and the right clamping block through a left rotating section and a right rotating section. The screw rod transmission has simple structure and good stability.

Furthermore, the dosing rotary driving motor drives the rotary transmission shaft to move through the synchronous wheel, and rotary dosing and drug dropping actions are completed. Two bearings are arranged in the transmission bearing seat, so that the effect of supporting and balancing the rotary transmission shaft is achieved, and the rotary action of the rotary transmission shaft is smoother.

Furthermore, a positioning pin matched with the position of the medicine storage bottle is arranged on the base of the medicine dispensing unit. The positioning pin hole is matched with the positioning pin hole of the lower shell of the dispensing device to determine the fixing position of the medicine storage bottle on the medicine storage bottle fixing mechanism.

The invention also provides a dispensing method of the dispensing device using the granular medicament, which is characterized by comprising the following steps of:

a. the initial state of the dispensing device is that the opening of a rotating bin of the dosing rotating body is downward, a volume adjusting block of the dosing adjusting body is located at the minimum volume position of the rotating bin, if the volume requirement is met, the step c is carried out, and if the volume requirement is not met, the step b is carried out;

b. adjusting the relative position of a volume adjusting block in the dosing adjusting body in the material transferring bin to achieve the required volume;

c. the dosing rotating body rotates 180 degrees quickly, so that the material transferring bin is communicated with the material inlet, and the time is kept for 0.1s, and the granular medicament is ensured to completely fall to fill the minimum quantitative volume cavity and the opening part in the material transferring bin;

d. the medicine adding rotating body is reversely and rapidly rotated for 180 degrees, so that the rotating bin is communicated with the medicine falling port, and the medicines in the minimum quantitative volume cavity and the rotating bin fall into the designated container;

e. after the first designated container finishes dropping, the dosing rotating body resets to enable the opening of the rotating bin to face downwards and wait for the second designated container to be in place;

f. after the medicine adding action is circulated until the medicine adding of the containers with the specified number is finished, the medicine adding rotary body is reset, and the opening of the rotary bin is downward;

g. air is fed to clean residual medicine powder in the medicine dispensing device;

h. the dosing adjusting body resets to enable the volume adjusting block to be located at the minimum volume position of the material transferring bin.

Furthermore, when the maximum volume of the material transferring bin does not meet the requirement of the dosage, the medicine can be repeatedly added for many times.

Under the condition of multiple dispensing, the medicine adding adjusting body only needs to be operated once, and compared with the existing bin type adjusting method, the volume of the medicine adding adjusting body needs to be adjusted every time, the efficiency is improved, and the consistency of multiple dispensing is ensured. More importantly, the medicine adding adjusting body is not in contact with the medicine when acting, the change of the medicine properties caused by pushing the medicine when adjusting the volume is effectively avoided, the condition that the medicine is bonded and hardened due to heat generated by motion friction is avoided, and the blending precision is improved to a greater extent. In addition, the existing bin body type dispensing method needs to push the medicament out of the bin body, but the dispensing method provided by the invention does not need the pushing action, so that the medicament is prevented from being adhered to the bin body due to pushing. The two side faces of the rotating material bin are all designed to be inclined planes, so that the falling of the medicine is smooth, the large-particle medicine accumulation is avoided at the side edges, the falling precision is improved, and meanwhile, the rotating material bin is easy to clean and convenient to maintain.

Drawings

Fig. 1 is a schematic diagram of a granular preparation dispensing device of the present invention after being connected with a medicine storage bottle.

Fig. 2 is a schematic exploded view of the dispensing device of fig. 1.

Fig. 3 is a schematic view of the housing of the dispensing device of fig. 2.

Fig. 4 is a schematic view of the lower housing of the dispensing device of fig. 2.

Fig. 5 is an exploded view of the dose adjustment mechanism of fig. 2.

Fig. 6 is a schematic structural view of the dosing rotating body in fig. 5.

FIG. 7 is a schematic view of the medicated regulator of FIG. 5.

FIG. 8 is a schematic diagram of the volume adjusting block of the dosing adjusting body located at the minimum volume position of the material transferring bin.

FIG. 9 is a schematic diagram of the maximum volume position of the volume adjusting block of the dosing adjusting body in the transfer bin.

FIG. 10 is a schematic view of the structure of the transferring bin of the present invention rotating to the feeding position;

FIG. 11 is a schematic view of the structure A-A of FIG. 10;

FIG. 12 is a schematic structural view of the rotary bin rotating to the dosing amount adjusting and dropping position according to the present invention;

FIG. 13 is a schematic view of the structure B-B of FIG. 12;

fig. 14 is a schematic view of the sealing structure of the dispensing device.

Fig. 15 is an enlarged partial schematic view at C of the sealing structure of the dispensing device of fig. 14.

Fig. 16 is a schematic structural view of the granular medicine dispensing unit of the present invention without a medicine storage bottle.

Fig. 17 is a schematic structural view of the granular medicine dispensing unit after the medicine storage bottle is placed.

Fig. 18 is a schematic structural view of a medicine storage bottle fixing mechanism.

Fig. 19 is a schematic structural view of a drug discharge amount adjustment drive mechanism.

FIG. 20 is a schematic view of the structure of the rotary drug-feeding driving mechanism.

Fig. 21 is a schematic view of a base structure.

In the figure: 1 medicine storage bottle, 2 shells, 3 medicine dispensing adjusting mechanisms, 21 upper shells, 211 fixing sheaths, 212 air inlet holes, 213 medicine inlet holes, 214 square bulges, 22 lower shells, 221 medicine falling holes, 222 positioning pin holes, 31 medicine adding rotary friction rings, 32 medicine adding adjusting bodies, 321 volume adjusting blocks, 322 minimum quantitative volume cavities, 323 ejector rods, 33 medicine adding rotary bodies, 331 rotating bins, 332 guide holes, 333 transmission shafts, 34 medicine adding adjusting ejector blocks, 4 bases, 5 medicine outlet amount adjusting driving mechanisms, 6 medicine outlet amount adjusting driving motors, 7 clamping block driving motors, 8 medicine storage bottle fixing mechanisms, 9 medicine adding rotary driving motors, 10 medicine adding rotary driving mechanisms, 11 left clamping blocks, 12 screw rods, 13 right clamping blocks, 14 front ejector blocks, 15 rear ejector blocks, 16 transmission bearing seats, 17 rotary transmission shafts and 18 positioning pins.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

The invention provides a dispensing device for granular medicaments, which is shown in figures 1-15.

The dispensing device is connected with the medicine storage bottle 1, and the medicine storage bottle 1 is arranged above the dispensing device. The dispensing device comprises a housing 2 and a dispensing adjustment mechanism 3 arranged therein, the housing 2 being composed of an upper housing 21 and a lower housing 22. The upper shell 21 is provided with a medicine inlet 213, and the lower shell 22 is provided with a medicine outlet 221. The dispensing adjusting mechanism 3 is composed of a dosing rotator 33, a dosing adjusting body 32 and a dosing adjusting top block 34 which are arranged on two sides of the dosing rotator. The medicated rotary body 33 is composed of a cylindrical body horizontally arranged and a transmission shaft 333. The cylindrical main body side of the dosing rotating body is provided with a rotating bin 331, and the inside of the dosing rotating body is provided with a guide hole 332 penetrating through the two bottom surfaces. The medicine adding adjusting body 32 is provided with a volume adjusting block 321 matched with the material transferring bin and an ejector rod 323 matched with the guide hole 332. The medicine adding adjusting top block 34 is arranged on a transmission shaft 333 of the medicine adding rotating body and is connected with the ejector rod 323, and when the medicine adding adjusting top block 34 moves horizontally, the medicine adding adjusting body 32 is pushed to move horizontally to adjust the relative position of the volume adjusting block 321 in the rotating bin 331, so that stepless volume-changing adjustment of the rotating bin 331 is realized. The material transferring bin 331 is respectively communicated with the medicine inlet 213 and the medicine falling port 221 when the medicine dispensing adjusting mechanism 3 rotates, so that medicine is fed and dropped, and the medicine feeding adjusting body 32 resets after medicine feeding is finished. As shown in fig. 1-7.

The end of the volume adjusting block 321 of the medicine adding adjusting body 32 close to the medicine adding rotating body 33 is provided with a minimum quantitative volume cavity 322, and the minimum quantitative volume cavity 322 sets the minimum quantitative volume.

The volume adjusting block 321 moves to the position where the volume of the transferring bin 331 is minimum, and only the minimum quantitative volume chamber 322 remains, and the volume is minimum, as shown in fig. 8. The volume adjusting block 321 moves to the position where the volume of the transferring bin 331 is maximum, and the transferring bin 331 can be used for containing granular medicine in the whole, and the volume is maximum, as shown in fig. 9.

Upon completion of the volume adjustment, dispensing is started. The medicine adding rotary body 33 starts to feed medicine when the medicine transferring bin is communicated with the medicine inlet. As shown in fig. 10-11. When the medicine feeding is completed, the rotating body 33 rotates to the state that the rotating bin is communicated with the medicine falling port, and the medicine begins to fall. As shown in fig. 12-13.

The upper shell is provided with an air inlet hole 212 and an inwards concave fixed sheath 211, and the air inlet hole balances the negative pressure state caused by medicine falling when dispensing, so that the medicine enters the rotary bin more smoothly, and the dispensing precision is improved; after the dispensing is finished, the air inlet hole can increase the air inflow, improve the air flow velocity and enhance the dust removal effect. The effect of fixed sheath is after the medicine storage bottle is placed the unit of dispensing, and the unit of dispensing compresses tightly dispensing device through fixed sheath inclined plane, and the overall stability of medicine storage bottle when guaranteeing to add the medicine. As shown in fig. 3.

The sealing structure of the dispensing device consists of a cylindrical main body of the dosing rotating body 33 and square bulges 214 which are matched with the two ends of the cylindrical main body in the upper shell 21; a small gap is left between the two when the two are attached. The tiny gap can prevent most granular medicaments from falling out, and meanwhile, some tiny medicinal powder can be accumulated in the gap to achieve the sealing effect. As shown in fig. 14 and 15.

The dosing rotary friction rings 31 are arranged at two ends of the dosing rotary body 33. The tooth-shaped design of the upper outer ring of the dosing rotary friction ring reduces the contact area of the dosing rotary body with the upper shell and the lower shell, so that the resistance caused by the residue of a small amount of medicinal powder is reduced; the inner ring is designed into an annular groove, and the dosing rotating body only makes line contact with the bottom and the side wall of the annular groove when rotating, so that the resistance caused by a small amount of residual medicine powder is reduced. As shown in fig. 5.

Example two

A unit cell for dispensing a particulate medicament as shown in figures 16 to 21.

The dispensing device adopts the dispensing device in the first embodiment, and comprises a base 4, a medicine storage bottle fixing mechanism 8, a medicine adding rotary driving mechanism 10 and a medicine discharging amount adjusting driving mechanism 5 which are arranged on the base. The medicine storage bottle fixing mechanism 8 is composed of a left clamping block 11, a right clamping block 13 and a clamping block driving motor 7 which can move in opposite directions, the left clamping block 11 and the right clamping block 13 are driven to move in opposite directions by a screw rod 12, and the left end and the right end of the screw rod 12 are respectively connected with the left clamping block and the right clamping block through a left rotating section and a right rotating section. The dosing rotary driving mechanism 10 comprises a rotary transmission shaft 17 and a transmission bearing seat 16, the rotary transmission shaft 17 is connected with a dosing rotary driving motor 9, and the dosing rotary driving motor 9 drives the rotary transmission shaft 17 to move through a synchronous wheel. The medicine discharging quantity adjusting driving mechanism 5 comprises a front ejector block 14 and a rear ejector block 15 which move horizontally, and a medicine discharging quantity adjusting driving motor 6 which is connected with the front ejector block 14 and the rear ejector block 15 through a linear module, the front ejector block 14 pushes the medicine feeding adjusting ejector block to move horizontally backwards, and the rear ejector block 15 pushes the medicine feeding adjusting body to move horizontally forwards. And a positioning pin 18 matched with the position of the medicine storage bottle is arranged on the base 4 of the medicine dispensing unit.

After the medicine storage bottle is placed on the medicine storage bottle fixing mechanism, the clamping block driving motor 7 acts to enable the left clamping block 11 and the right clamping block 13 to synchronously move in opposite directions to compress the fixed sheath inclined plane of the upper shell of the medicine dispensing device, so that the medicine storage bottle is fixed. Go out the removal of medicine volume regulation kicking block among the medicine dispensing device is promoted through preceding kicking block 14 to medicine volume regulation driving motor 6, reaches the effect of adjusting change feed bin volume size, adds the medicine and accomplishes the back, goes out medicine volume regulation driving motor reverse action, pushes out medicine volume regulation body through going out medicine volume regulation back kicking block 15 and removes and reset. The front ejector block, the rear ejector block and the medicine discharge quantity adjusting and driving motor are connected through the linear module, so that the rotary motion of the motor is converted into linear motion, and the front ejector block and the rear ejector block are driven to move horizontally.

The existing allocation mode generally adopts a push-pull linear driving mechanism to adjust the volume, and the notch is easy to wear because of repeated bidirectional stress in the same notch, so that the adjustment precision is influenced due to the clearance after long-time use. When the volume is adjusted, the front ejector block pushes the dosing adjusting body to move; after the medicine is added, the rear ejector block pushes the medicine adding adjusting body to move and reset. The contact surface of the dosing regulator and the medicament is only acted by unidirectional force, so that the wear is less after long-time use, and the repeated regulation precision can be ensured.

The positioning pin 18 is matched with a positioning pin hole of a lower shell of the dispensing device to determine the fixing position of the medicine storage bottle on the medicine storage bottle fixing mechanism.

EXAMPLE III

A granular medicament dispensing method adopting the dispensing device comprises the following steps:

a. the initial state of the dispensing device is that the opening of a material transferring bin of the dosing rotating body is downward, and the volume adjusting block of the dosing adjusting body is at the minimum volume position of the material transferring bin.

b. The relative position of the volume adjusting block in the medicine adding adjusting body in the material transferring bin is adjusted to achieve the required volume.

c. The dosing rotating body rotates 180 degrees quickly, so that the rotating bin is communicated with the dosing inlet; and stopping for 0.1s to ensure that the granular medicament completely falls to fill the minimum quantitative volume cavity and the opening part in the material transferring bin.

d. The chemical adding rotary body is reversely and rapidly rotated for 180 degrees, so that the rotary bin is communicated with the chemical dropping port; the medicine in the minimum quantitative volume cavity and the transferring bin falls into the designated container.

e. After the first designated container finishes dropping, the dosing rotating body resets to enable the opening of the rotating bin to face downwards and wait for the second designated container to be in place.

f. The medicine adding action is circulated until the medicine adding of the containers with the specified quantity is finished, and the medicine adding rotary body is reset to enable the opening of the rotary bin to be downward.

g. Air intake clears up the remaining powder in the dispensing device.

h. The dosing adjusting body resets to enable the volume adjusting block to be located at the minimum volume position of the material transferring bin.

When the maximum volume of the transfer bin can not meet the requirement of dosing amount, the dosing can be repeated for many times.

Under the condition of multiple dispensing, the medicine adding adjusting body only needs to be operated once, and compared with the existing bin type adjusting method, the volume of the medicine adding adjusting body needs to be adjusted every time, the efficiency is improved, and the consistency of multiple dispensing is ensured. More importantly, the medicine adding adjusting body is not in contact with the medicine when acting, the change of the medicine properties caused by pushing the medicine when adjusting the volume is effectively avoided, the condition that the medicine is bonded and hardened due to heat generated by motion friction is avoided, and the blending precision is improved to a greater extent. In addition, the existing bin body type dispensing method needs to push the medicament out of the bin body, but the dispensing method provided by the invention does not need the pushing action, so that the medicament is prevented from being adhered to the bin body due to pushing. The two side faces of the rotating material bin are all designed to be inclined planes, so that the falling of the medicine is smooth, the large-particle medicine accumulation is avoided at the side edges, the falling precision is improved, and meanwhile, the rotating material bin is easy to clean and convenient to maintain.

Example four

The invention provides a granular medicament dispensing method adopting the dispensing device, which comprises the following steps:

a. the initial state of the dispensing device is that the opening of a material transferring bin of the dosing rotating body is downward, and the volume adjusting block of the dosing adjusting body is at the minimum volume position of the material transferring bin.

b. The dosing rotating body rotates 180 degrees quickly, so that the rotating bin is communicated with the dosing inlet; the pause is 0.1s, and the granular medicament is ensured to completely fall down to fill the minimum quantitative volume cavity on the volume adjusting block.

c. The chemical adding rotary body is reversely and rapidly rotated for 180 degrees, so that the rotary bin is communicated with the chemical dropping port; the medicament in the chamber of minimum dosing volume is dropped into the designated container.

d. After the first designated container finishes dropping, the dosing rotating body resets to enable the opening of the rotating bin to face downwards and wait for the second designated container to be in place.

e. And circulating the dosing actions until the dosing of the containers with the specified quantity is finished, and resetting the dosing rotating body to enable the opening of the rotating bin to be downward.

f. Air intake clears up the remaining powder in the dispensing device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (14)

1. The utility model provides a dispensing device of graininess medicament, includes the casing and locates the adjustment mechanism that dispenses in it, the casing comprises last casing and lower casing, it is equipped with into medicine mouth to go up the casing, the casing is equipped with the medicine mouth down, its characterized in that, the adjustment mechanism that dispenses adds the medicine regulating body, adds the medicine and adjusts the kicking block by adding the medicine rotator and locating its both sides and form, cylindrical main part and the transmission shaft that adds the medicine rotator and set up by the level constitute, the cylindrical main part side that adds the medicine rotator is equipped with changes the feed bin, and cylindrical main part is inside to be equipped with the guiding hole that runs through two bottom surfaces, add the medicine regulating body and be equipped with and change the volume regulating block that the feed bin matches and the ejector pin that matches with the guiding hole, add the medicine and adjust the kicking block and locate on the transmission shaft that adds the medicine rotator and meet with the ejector pin, thereby it adjusts the relative position that the volume regulating block was adjusting block in changeing the feed Volume adjustment, change the feed bin when the adjustment mechanism that dispenses rotates and communicate with medicine inlet and medicine mouth respectively and realize advancing the medicine and fall the medicine, add medicine regulation body and promote from adding medicine regulation body one side and add medicine regulation body and reset after the medicine is accomplished.

2. The dispensing device for granular medicine according to claim 1, wherein the cross section of the rotary dosing bin of the rotary dosing body is fan-shaped.

3. A dispensing device for granular medicine according to claim 1, wherein the volume adjusting block of the drug-adding adjusting body is provided with a minimum quantitative volume chamber at the end portion close to the drug-adding rotating body, and the minimum quantitative volume chamber sets the minimum quantitative volume.

4. A dispensing device for granular medicines according to claim 1, characterized in that the upper case is provided with square protrusions at its inner part for engaging with both ends of the cylindrical body of the medicated rotating body, and the cylindrical body of the medicated rotating body and the square protrusions form a self-sealing structure.

5. A dispensing device for granular medicine according to claim 1, wherein the dosing rotary friction rings are sleeved at both ends of the dosing rotary body.

6. A dispensing device for granular dosage forms as defined in claim 1, wherein the upper housing is provided with an air inlet.

7. A particulate medication dispensing apparatus as recited in claim 1, wherein said upper housing has recessed retaining sheaths on both front and rear sides thereof.

8. A dispensing device for granular medication according to claim 1, wherein the lower housing is provided with a registration pin hole matching the location of the drug reservoir.

9. A unit for dispensing a granular medicine using the granular medicine dispensing apparatus according to any one of claims 1 to 8, it is characterized by comprising a base, a medicine storage bottle fixing mechanism, a medicine adding rotary driving mechanism and a medicine output adjusting driving mechanism which are arranged on the base, the medicine storage bottle fixing mechanism consists of a left clamping block, a right clamping block and a clamping block driving motor which can move oppositely, the drug-adding rotary driving mechanism comprises a rotary transmission shaft and a transmission bearing seat, the rotary transmission shaft is connected with a drug-adding rotary driving motor, the medicine discharging quantity adjusting and driving mechanism comprises a front top block and a rear top block which move horizontally and a medicine discharging quantity adjusting and driving motor which is connected with the front top block and the rear top block through a linear module, the front ejector block pushes the dosing adjusting ejector block to move horizontally backwards, and the rear ejector block pushes the dosing adjusting body to move horizontally forwards.

10. A unit for dispensing granular medication according to claim 9, wherein the left and right clamp blocks are moved toward each other by a screw rod, and the left and right ends of the screw rod are connected to the left and right clamp blocks by left-hand and right-hand segments, respectively.

11. The dispensing unit for granular dosage of claim 9, wherein the dosing rotary drive motor drives the rotary drive shaft to move through a synchronizing wheel.

12. A unit according to claim 9 wherein the base of the unit is provided with locating pins for locating the reservoir.

13. A method of dispensing a granular pharmaceutical product using the apparatus for dispensing a granular pharmaceutical product according to any one of claims 1 to 8, comprising the steps of:

a. the initial state of the dispensing device is that the opening of a rotating bin of the dosing rotating body is downward, a volume adjusting block of the dosing adjusting body is located at the minimum volume position of the rotating bin, if the volume requirement is met, the step c is carried out, and if the volume requirement is not met, the step b is carried out;

b. adjusting the relative position of a volume adjusting block in the dosing adjusting body in the material transferring bin to achieve the required volume;

c. the dosing rotating body rotates 180 degrees quickly, so that the material transferring bin is communicated with the material inlet, and the time is kept for 0.1s, and the granular medicament is ensured to completely fall to fill the minimum quantitative volume cavity and the opening part in the material transferring bin;

d. the medicine adding rotating body is reversely and rapidly rotated for 180 degrees, so that the rotating bin is communicated with the medicine falling port, and the medicines in the minimum quantitative volume cavity and the rotating bin fall into the designated container;

e. after the first designated container finishes dropping, the dosing rotating body resets to enable the opening of the rotating bin to face downwards and wait for the second designated container to be in place;

f. after the medicine adding action is circulated until the medicine adding of the containers with the specified number is finished, the medicine adding rotary body is reset, and the opening of the rotary bin is downward;

g. air is fed to clean residual medicine powder in the medicine dispensing device;

h. the dosing adjusting body resets to enable the volume adjusting block to be located at the minimum volume position of the material transferring bin.

14. The dispensing method of claim 13 wherein the dispensing is repeated a plurality of times when the maximum volume of the diversion bin does not meet the dosing requirement.

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