CN217945585U - Granular preparation quantitative subpackaging device - Google Patents

Abstract

The utility model provides a granular preparation quantitative subpackaging device, which comprises a dispensing mechanism for quantitatively subpackaging granular preparation and a driving mechanism for driving the dispensing mechanism to operate; the dispensing bottle with granular preparation has inverted bottle mouth installed on the top of the dispensing mechanism, the casing of the driving mechanism has top opened with holding groove, and the dispensing mechanism is detachable installed inside the holding groove. The utility model discloses a set up dispensing mechanism detachable and install on actuating mechanism, make the device when installing the dispensing bottle, can pull down dispensing mechanism from actuating mechanism and install on the bottleneck of dispensing bottle, will dispense on the mechanism intercommunication dispensing bottle installs actuating mechanism together again, dispensing mechanism can carry out the shutoff to the bottleneck of dispensing bottle, prevents that the dispensing bottle from inverting the unrestrained granule preparation in the in-process, makes things convenient for the installation of dispensing bottle.

Description

Granular preparation quantitative subpackaging device

Technical Field

The utility model belongs to the technical field of the medicine production, a granular preparation ration partial shipment device is related to, concretely relates to traditional chinese medicine prescription granular preparation ration partial shipment device.

Background

The traditional Chinese medicine formula granule is prepared by processing traditional Chinese medicinal materials according to the traditional processing technology, respectively preparing extraction and separation processes of effective components according to the physicochemical properties, main components and functional indications of the medicinal materials, and preparing a granular preparation prepared by applying a modern pharmaceutical means for clinical administration according to the prescription. When a traditional Chinese medicine pharmacy adopts traditional Chinese medicine formula particles to take a plurality of particles according to the prescription and the quantitative amount to prepare the traditional Chinese medicine, if the traditional Chinese medicine decoction pieces are manually taken and weighed and the quantitative manner is adopted, the requirements of the novel traditional Chinese medicine formula particles can not be met in the aspects of labor cost, working efficiency and sanitary conditions.

The quantitative subpackaging mechanical device has the advantages that manpower is liberated to a great extent, and efficiency is improved. The quantitative subpackaging mechanical device comprises a dispensing mechanism and a driving mechanism, wherein a dispensing bottle containing granular preparation is installed on the dispensing mechanism, the mouth of the dispensing bottle is inversely installed at the top of the dispensing mechanism, and the driving mechanism drives the dispensing mechanism to operate so as to quantitatively subpackage the granular preparation contained in the dispensing bottle.

However, the dispensing structure of the conventional quantitative dispensing mechanical device is integrated with the driving mechanism, and the opening of the dispensing bottle needs to be opened and inverted when the dispensing bottle is installed, so that the problem that the granular preparation in the dispensing bottle is easy to fall when an operator installs the dispensing bottle filled with the granular preparation, and the dispensing bottle is difficult to install.

Therefore, it is an urgent technical problem to be solved by those skilled in the art to design a dispensing device for quantitatively dispensing granular preparation to prevent the granular preparation in the dispensing bottle from spilling when the dispensing bottle is installed.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem lies in overcoming prior art's is not enough, a granule preparation ration partial shipment device is provided, install on actuating mechanism through setting up dispensing mechanism detachable, make the device when installing the dispensing bottle, can pull down dispensing mechanism from actuating mechanism, and install on the bottleneck of dispensing bottle, install actuating mechanism together with dispensing mechanism intercommunication dispensing bottle again, dispensing mechanism can carry out the shutoff to the bottleneck of dispensing bottle, prevent that the granule preparation of dispensing bottle inversion in-process in it from unrestrained, the problem of current granule preparation ration partial shipment device dispensing bottle installation difficulty has been solved.

In order to solve the technical problem, the utility model adopts the following basic concept:

a granular preparation quantitative subpackaging device comprises a dispensing mechanism for quantitatively subpackaging granular preparations and a driving mechanism for driving the dispensing mechanism to operate; the dispensing bottle with granular preparation has inverted bottle mouth installed on the top of the dispensing mechanism, the casing of the driving mechanism has top opened with holding groove, and the dispensing mechanism is detachable installed inside the holding groove.

Furthermore, magnetic steel is embedded in one of the side wall of the dispensing mechanism and the groove wall of the placing groove, and a reed switch is embedded in the other of the side wall of the driving mechanism and the groove wall of the placing groove; the reed switch senses the position of the magnetic steel so as to calibrate the relative position between the driving mechanism and the dispensing mechanism.

Further, still include:

the mortice extends along the installation direction of the dispensing mechanism and is arranged on the peripheral wall of the dispensing mechanism and/or the wall of the groove;

the tenons are arranged on the groove wall of the placing groove and/or the peripheral wall of the agent adjusting mechanism, and the tenons are correspondingly inserted into the mortises one by one.

Furthermore, the dispensing bottles comprise a plurality of same or different granular preparations, each dispensing bottle is provided with a chip which corresponds to the dispensing bottle and is used for writing in the information of the medicine stored in the dispensing bottle, and the chip is detachably arranged at the bottom of the dispensing mechanism;

the bottom of the placing groove is provided with a card reader used for sensing the chip and reading the medicine information in the chip.

Further, the dispensing mechanism includes:

the top of the feeding plate is provided with an installation opening for installing a dispensing bottle, and the middle part of the feeding plate is provided with a feeding opening for vertically communicating the dispensing bottle;

the discharging plate is arranged below the feeding plate and is provided with discharging ports which are arranged in a staggered manner with the feeding ports;

the dispensing plate is arranged between the feeding plate and the discharging plate in a sliding manner;

and the return spring is elastically abutted with the dispensing plate and is used for driving the dispensing plate to seal the feeding hole and/or the discharging hole.

Furthermore, the top of the discharging plate is provided with a sliding chute with two closed ends, and the feeding plate is buckled at the notch of the sliding chute and is connected with the notch of the sliding chute through a connecting piece;

the dispensing plate comprises a first dispensing plate and a second dispensing plate which surround the wall of the chute to form a cavity, the cavity is used for temporarily containing granular preparation, and the first dispensing plate and the second dispensing plate move relatively to control the volume of the cavity and move synchronously to transfer the granular preparation.

Furthermore, the return spring is arranged between one side of the second dispensing plate, which is far away from the first dispensing plate, and the groove wall of the chute; the first dispensing plate has:

in the first position, the end surface of the first dispensing plate close to one side of the second dispensing plate is aligned with one side of the discharge port far away from the return spring;

and in the second position, the end surface of one side of the first dispensing plate, which is close to the second dispensing plate, is aligned with one side of the feed inlet, which is far away from the return spring.

Further, the drive mechanism includes:

the first motor is in transmission connection with the first dispensing plate through a first lead screw nut assembly;

and the second motor is in transmission connection with the second dispensing plate through a second lead screw nut assembly.

Furthermore, a guide groove extending along the extending direction of the sliding groove is formed in the discharging plate, driving blocks protruding into the guide groove and matched with the groove wall of the guide groove in a sliding mode are respectively arranged at the bottoms of the first dispensing plate and the second dispensing plate, and driving holes are formed in the bottoms of the driving blocks;

the first nut of the first lead screw nut assembly is connected with the driving hole in the first dispensing plate through the first push rod, and the second nut of the second lead screw nut assembly is connected with the driving hole in the second dispensing plate through the second push rod.

Further, a photoelectric switch for identifying the moving positions of the first dispensing plate and the second dispensing plate is arranged in the driving mechanism and/or the dispensing mechanism;

the photoelectric switch obtains the positions of the first dispensing plate and the second dispensing plate by sensing the positions of the first nut and the second nut so as to control the start and stop of the first motor and the second motor.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has:

1. the utility model discloses a set up dispensing mechanism detachable and install on actuating mechanism, make the device when installing the dispensing bottle, can pull down dispensing mechanism from actuating mechanism and install the bottleneck of dispensing bottle on, will dispense mechanism intercommunication dispensing bottle and install actuating mechanism together again, dispensing mechanism can carry out the shutoff to the bottleneck of dispensing bottle, prevents that the dispensing bottle from invering the unrestrained granule preparation in the in-process, makes things convenient for the installation of dispensing bottle.

2. The utility model discloses a set up magnet steel and tongue tube, can improve the location effect in the adjustment mechanism installation, guarantee that adjustment mechanism installs in the standing groove with correct angle, guarantee that device normal operation.

3. The utility model discloses a set up a plurality of dispensing bottles, can directly change new dispensing bottle when making the granule preparation surplus in the former dispensing bottle not enough, improve the work efficiency of device. Meanwhile, each dispensing bottle is correspondingly provided with a chip, and the card reader is arranged at the bottom of the placing groove, so that on one hand, the device can accurately identify the medicine information in the dispensing bottle, and on the other hand, after the dispensing bottle is installed, if the card reader does not read the medicine information, the installation error of the dispensing mechanism is indicated, and the installation accuracy of the dispensing mechanism is further improved.

And simultaneously, the utility model discloses simple structure, the effect is showing, suitable using widely.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments and that for a person skilled in the art, other drawings can also be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic view of the overall structure of a quantitative packaging device for granular preparation in an embodiment of the present invention;

FIG. 2 is a schematic view of an assembly structure of a dispensing mechanism and a dispensing bottle according to an embodiment of the present invention;

FIG. 3 is an exploded view of a dispensing mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic bottom structure diagram of a dispensing mechanism according to an embodiment of the present invention;

fig. 5 is a schematic top structure view of a feeding plate in an embodiment of the present invention;

FIG. 6 is a schematic structural view of a dispensing plate according to an embodiment of the present invention;

fig. 7 is a schematic view of the internal structure of the placement groove in the embodiment of the present invention;

fig. 8 is a schematic view of a split structure of a quantitative split charging device for granular preparations in the third embodiment of the present invention;

fig. 9 is a schematic view of an internal structure of a driving mechanism in a third embodiment of the present invention;

fig. 10 is a schematic view of a split structure of a quantitative split charging device for granular preparations according to a fourth embodiment of the present invention;

fig. 11 is a schematic view of the installation structure of the clockwork spring in the embodiment of the present invention;

fig. 12 is a schematic view of an internal structure of a driving mechanism according to a fourth embodiment of the present invention.

Description of the main elements in the figures:

1. a dispensing mechanism; 101. a feeding plate; 1011. an installation port; 1012. a feed inlet; 102. a discharge plate; 1021. a discharge port; 103. a first dispensing plate; 104. a second dispensing plate; 105. a return spring; 106. a chip; 107. a cover plate; 108. magnetic steel; 109. a drive block; 110. a drive aperture; 111. a guide groove; 112. mortises; 113. a chute; 114. a cavity; 115. a limiting groove; 116. a limiting protrusion; 2. a drive mechanism; 201. a housing; 202. placing the plate; 2021. a placement groove; 203. a first motor; 204. a second motor; 205. a first lead screw nut assembly; 206. a second lead screw nut assembly; 207. a first push rod; 208. a second push rod; 209. a reed switch; 210. a card reader; 211. a tenon; 212. a first drive gear set; 213. a second drive gear set; 214. a motor; 215. a one-way bearing; 216. a torque limiter; 217. a clockwork spring; 3. dispensing bottles; 301. a clamping groove.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 to 12, in an embodiment of the present invention, a quantitative dispensing device for granular preparations is introduced, which includes a dispensing mechanism 1 for quantitatively dispensing granular preparations, and a driving mechanism 2 for driving the dispensing mechanism 1 to operate.

As shown in fig. 2 to 6, in the present embodiment, the dispensing mechanism 1 includes a feeding plate 101, a discharging plate 102, and a dispensing plate disposed therebetween. Specifically, the top of the feeding plate 101 is provided with an installation opening 1011 extending upwards and used for installing the dispensing bottle 3, the installation opening 1011 is used for being in butt joint with the bottle opening of the dispensing bottle 3 containing granular preparations, the dispensing bottle 3 is arranged in an inverted manner, the bottle opening is fastened at the installation opening 1011 of the dispensing bottle 3, and the feeding plate 101 can block the bottle opening of the dispensing bottle 3. A feed inlet 1012 is formed in the feed plate 101 in the surrounding range of the mounting port 1011, and the feed inlet 1012 vertically penetrates through the feed plate 101 and is used for guiding out the granular preparation in the dispensing bottle 3. The dispensing plate is disposed below the feeding plate 101, and is provided with a cavity 114 for temporarily containing the granular formulation, and the granular formulation discharged from the feeding port 1012 is temporarily stored in the cavity 114. The discharge plate 102 is disposed below the dispensing plate, and discharge holes 1021 staggered with the feed holes 1012 are disposed on the discharge plate 102 and are used for outputting the granular preparation in the cavity 114. The cavity 114 controls the opening and closing of the inlet 1012 and the outlet 1021 by reciprocating between the inlet 1012 and the outlet 1021, thereby completing the actions of feeding, transferring and discharging.

In this embodiment, the mounting opening 1011 is engaged with the mouth of the dispensing bottle 3. Specifically, the peripheral wall of the bottle opening of the dispensing bottle 3 is provided with a clamping groove 301, and the clamping groove 301 comprises a first clamping groove 301 axially extending from one end of the bottle opening far away from the bottle body to the bottle body and a second clamping groove 301 circumferentially extending from one end of the first clamping groove 301 close to the bottle body; the shape of installing port 1011 and the shape looks adaptation of bottleneck, the periphery wall of bottleneck and the inner wall of installing port 1011 are laminated mutually, be equipped with on the inner wall of installing port 1011 with draw-in groove 301 is to the card of adaptation protruding. During installation, the card protrudes from the first card slot 301 and is inserted into the second card slot 301 by rotating the bottle body or the installation opening 1011.

In this embodiment, a chute 113 is disposed between the feeding plate 101 and the discharging plate 102, the dispensing plate is slidably disposed in the chute 113, a sidewall of the dispensing plate is slidably engaged with a wall of the chute 113, and upper and lower end surfaces of the dispensing plate are respectively attached to and slidably engaged with the feeding plate 101 and the discharging plate 102.

The dispensing plate comprises a first dispensing plate 103 and a second dispensing plate 104, and the adjacent two end faces of the first dispensing plate 103 and the second dispensing plate 104 are in concave-convex engagement, so that a cavity 114 is formed between the first dispensing plate 103 and the second dispensing plate 104. The first dispensing plate 103 is provided with at least one concave portion, the second dispensing plate 104 is provided with convex portions which are correspondingly engaged with the concave portions one by one, and the concave portions are engaged with the convex portions to form a cavity 114. In this embodiment, the concave portion and the convex portion may be provided in a plurality of mutually engaged portions, and the number of the concave portion and the convex portion may be set according to actual requirements.

Preferably, in this embodiment, a concave portion is disposed at one end of the first dispensing plate 103 close to the second dispensing plate 104, and a convex portion engaged with the concave portion is disposed on the second dispensing plate 104, so that two cavities 114 are formed between two sides of the first dispensing plate 103 and the second dispensing plate 104 and a groove wall of the sliding groove 113, and the two cavities 114 may have the same or different volume sizes.

Preferably, the two cavities 114 have the same size, the feeding plate 101 is provided with two feeding ports 1012 respectively corresponding to the two cavities 114, the discharging plate 102 is correspondingly provided with two discharging ports 1021, the corresponding feeding ports 1012 and the corresponding discharging ports 1021 are staggered in the vertical direction, and the widths of the feeding ports 1012 and the discharging ports 1021 are greater than or equal to the widths of the cavities 114 corresponding thereto. Thereby two groups of discharging structures are formed on the dispensing mechanism 1, two granular preparations with the same volume can be separately packaged at the same time by only one pushing action, and the working efficiency is improved.

In this embodiment, the chute 113 is connected with the feeding plate 101 as a whole and extends downward from the bottom of the feeding plate 101, and the discharging plate 102 is fastened to the bottom of the chute 113, i.e., the notch of the chute 113, and is mounted on the feeding plate 101 through connecting members such as bolts and screws; or, the chute 113 and the discharging plate 102 are connected into a whole and extend upwards from the top of the discharging plate 102, the feeding plate 101 is fastened on the top of the chute 113 to seal the slot opening of the chute 113, and the feeding plate 101 and the discharging plate 102 are installed through connecting pieces such as bolts and screws. In this embodiment, the first dispensing plate 103 and the second dispensing plate 104 are both slidably embedded in the chute 113, the left and right side walls of the first dispensing plate 103 and the second dispensing plate 104 are respectively slidably engaged with the chute wall of the chute 113, and the upper and lower end surfaces of the first dispensing plate 103 and the second dispensing plate 104 are respectively slidably engaged with the bottom surface of the feeding plate 101 and the top surface of the discharging plate 102.

In this embodiment, the first dispensing plate 103 is disposed on a side of the inlet 1012 near the outlet 1021, and the second dispensing plate 104 is disposed on a side of the outlet 1021 near the inlet 1012. The working process of the dispensing mechanism 1 is as follows:

initially, the first dispensing plate 103 and the second dispensing plate 104 are attached to each other, the volume of the cavity 114 is zero, the first dispensing plate 103 and the second dispensing plate 104 are sealed at the feed inlet 1012, and the granular formulation is blocked above the dosing member; when the granular preparation needs to be quantitatively dispensed, the first dispensing plate 103 moves to a position where one end of the first dispensing plate 103 close to the second dispensing plate 104 is flush with one side of the feed inlet 1012 close to the discharge port 1021, the second dispensing plate 104 translates a designated distance in a direction away from the first dispensing plate 103 relative to the first dispensing plate 103, so that a designated distance is generated between the first dispensing plate 103 and the second dispensing plate 104, a cavity 114 is formed, and the granular preparation falls into the cavity 114 from the feed inlet 1012 to fill the cavity 114; keeping the distance between the first dispensing plate 103 and the second dispensing plate 104 unchanged and moving synchronously until the feed inlet 1012 is completely staggered to obtain the granular preparation with the set volume; keeping the distance between the first dispensing plate 103 and the second dispensing plate 104 unchanged and synchronously moving towards the discharge port 1021, so that the granular preparation flows out of the cavity 114 from the discharge port 1021 and enters the material receiving container; the movement is continued with the distance between the first dispensing plate 103 and the second dispensing plate 104 kept constant until the granular formulation in the cavity 114 is completely discharged; after the granular preparation in the cavity 114 completely flows out, the first dispensing plate 103 stops sliding, and the second dispensing plate 104 continues sliding towards the first dispensing plate 103, so that the first dispensing plate 103 and the second dispensing plate 104 are attached to each other; the first dispensing plate 103 and the second dispensing plate 104 are moved to the initial position while being kept in contact with each other until the initial position is restored, and a next dispensing operation is prepared.

Preferably, in this embodiment, the initial position is a position where an end of the first dispensing plate 103 close to the second dispensing plate 104 is flush with an end of the discharge port 1021 far from the feed port 1012.

Preferably, in this embodiment, a funnel structure is disposed between the bottle opening and the feed inlets 1012, the number of the funnel structures is the same as that of the feed inlets 1012, and the bottle opening is communicated with the feed inlets 1012 through the funnel structure.

Further preferably, the upper ends of the plurality of funnel structures equally divide the bottle openings, and the lower ends of the plurality of funnel structures are respectively matched with the shapes of the feeding holes 1012, so that the uniformity of the discharging speed of each feeding hole 1012 is ensured.

Example two

As shown in fig. 1 and fig. 7 to fig. 12, in this embodiment, the driving mechanism 2 includes a housing 201 and a driving assembly installed in the housing 201, a placing plate 202 is installed on the top of the housing 201 of the driving mechanism 2, a placing groove 2021 is opened on the placing plate 202, the shape of the placing groove 2021 is adapted to the shape of the dispensing mechanism 1, and the dispensing mechanism 1 is detachably installed in the placing groove 2021. In this embodiment, the dispensing mechanism 1 is detachably mounted on the driving mechanism 2, so that when the dispensing bottle 3 is mounted, the dispensing mechanism 1 can be detached from the driving mechanism 2 and mounted on the bottle mouth of the dispensing bottle 3, and then the dispensing mechanism 1 is communicated with the dispensing bottle 3 and mounted on the driving mechanism 2, so that the bottle mouth of the dispensing bottle 3 can be plugged by the dispensing mechanism 1, granular preparations in the dispensing bottle 3 during inversion are prevented from spilling, and the dispensing bottle 3 is convenient to mount.

As shown in fig. 3 and fig. 6, in the present embodiment, a return spring 105 for driving the dispensing plate to close the inlet 1012 and/or the outlet 1021 is further disposed in the dispensing mechanism 1. Specifically, two ends of a chute 113 between the discharging plate 102 and the feeding plate 101 are closed, the first dispensing plate 103 and the second dispensing plate 104 can slide in the chute 113 in a reciprocating manner, and the return spring 105 is arranged between one side of the second dispensing plate 104 far away from the first dispensing plate 103 and a chute wall of the chute 113. At the beginning, the second dispensing plate 104 is attached to the first dispensing plate 103 under the elastic force of the return spring 105, the first dispensing plate 103 is abutted against the groove wall at the end of the chute 113, and at this time, the second dispensing plate 104 simultaneously closes the discharge port 1021 and the feed port 1012 to prevent the granular preparation in the dispensing bottle 3 from leaking.

Preferably, in this embodiment, a guide rod is inserted into an inner side of a groove wall of one end of the chute 113 away from the first dispensing plate 103, and one end of the return spring 105 is sleeved on the guide rod; a blind hole is formed in the end face, away from the first dispensing plate 103, of one side of the second dispensing plate 104, and the other end of the return spring 105 at least partially extends into the blind hole. Through setting up guide bar and blind hole, can improve the stability of reset spring 105 installation, the reliability of work, improve the life of device. More preferably, a plurality of return springs 105 are arranged in parallel to improve the reliability of the operation of the dispensing mechanism 1.

In this embodiment, the housing 201 includes a bottom plate, two opposite side plates, and a top plate connected to the tops of the side plates, and the driving assembly is mounted on the bottom plate. The placing plate 202 is fixed at one end of the top of the side plate through bolts/screws and extends horizontally, the end of the placing plate 202 extending outwards is arranged in a hanging manner, the placing groove 2021 is arranged at the hanging end of the placing plate 202, and at least part of the bottom of the dispensing mechanism 1 is embedded in the placing groove 2021.

In this embodiment, the dispensing mechanism 1 is embedded in the placing groove 2021 from top to bottom, and a positioning device is disposed between the placing groove 2021 and the dispensing mechanism 1.

The positioning device comprises a mortise 112 and a tenon 211 which are matched with each other, wherein the mortise 112 and the tenon 211 extend along the installation direction of the dispensing mechanism 1, namely, the installation direction extends along the vertical direction, the tenon 211 and the mortise 112 are arranged on the peripheral wall of the dispensing mechanism 1 and/or the groove wall of the placement groove 2021, and in the installation process of the dispensing mechanism 1, the tenon 211 is inserted into the mortise 112, so that on one hand, the installation stability of the dispensing mechanism 1 can be improved, on the other hand, the positioning effect between the dispensing mechanism 1 and the driving mechanism 2 can be improved, and the accuracy of the assembly angle of the dispensing mechanism 1 is ensured.

Preferably, in this embodiment, the tenon groove 112 is disposed on the side wall of the dispensing mechanism 1, and the tenon 211 is correspondingly disposed on the groove wall of the placement groove 2021. Or, the opposite two sides of the dispensing mechanism 1 are provided with a tenon groove 112 on one side and a tenon 211 on the other side, and the groove wall of the placing groove 2021 is correspondingly provided with the tenon 211 and the tenon groove 112, so that the accuracy of the installation angle of the dispensing mechanism 1 is ensured.

Preferably, in this embodiment, the extending length of the tenon 211 and/or the mortise 112 on the sidewall of the dispensing mechanism 1 is the same as the groove depth of the placing groove 2021. It is further preferable that the depth of the placement groove 2021 is at least greater than the height of the blanking plate, that is, the feeding plate 101 is at least partially embedded in the placement groove 2021.

Preferably, in this embodiment, the positioning device further includes a reed switch 209 and a magnetic steel 108, which are mutually inductive. One of the side wall of the dispensing mechanism 1 and the groove wall of the placing groove 2021 is embedded with magnetic steel 108, and the other of the side wall of the driving mechanism 2 and the groove wall of the placing groove 2021 is embedded with a reed switch 209; the reed switch 209 senses the position of the magnetic steel 108 to calibrate the relative position between the driving mechanism 2 and the dispensing mechanism 1.

In this embodiment, the magnetic steel 108 is embedded on the side wall of the dispensing mechanism 1 from inside to outside, the side wall of the dispensing mechanism 1 is further provided with an induction hole communicated with the outside of the side wall, and the reed switch 209 is disposed on the placing plate 202 at a position corresponding to the induction hole.

Preferably, the reed switch 209 is a normally open reed switch 209, the circuit where the reed switch 209 is located is connected with an indicator lamp in series, before the dispensing mechanism 1 is placed, two reeds of the reed switch 209 are separated, the circuit is disconnected, the indicator lamp is not turned on, when the dispensing mechanism 1 is placed at a correct angle, the two reeds of the reed switch 209 are attracted, the circuit is closed, and the indicator lamp is turned on. Or, the reed switch 209 is a normally closed reed switch 209, before the dispensing mechanism 1 is placed, the circuit is closed, the indicator light is normally on, when the dispensing mechanism 1 is installed at a correct angle, two reeds of the reed switch 209 are separated from each other, the circuit is disconnected, and the indicator light is turned off. Specifically, the magnetic steel 108 and the reed pipe 209 are mutually induced, so that two reeds of the reed pipe 209 form the same or different magnetism, and the circuit is opened or closed.

Further preferably, when the dispensing mechanism 1 is correctly placed, the two reeds of the reed switch 209 are attracted, and if the dispensing mechanism 1 is installed and the indicator light is not on, the installation angle of the dispensing mechanism 1 is wrong, so as to calibrate the relative position between the driving mechanism 2 and the dispensing mechanism 1. Preferably, the reed switch 209 is disposed on the side of the placement groove 2021 close to the housing 201 of the driving device.

Preferably, in this embodiment, the dispensing mechanism 1 is further provided with a chip 106, the chip 106 may be specifically an RFID chip, and the chip 106 is written with the medicine information of the granular preparation stored in the dispensing bottle 3. The placing groove 2021 is provided with an RFID card reader for sensing the chip 106 and reading the information of the drugs therein. Specifically, the chip 106 is detachably mounted on the bottom of the dispensing mechanism 1 through a cover plate 107 which is embedded in the bottom of the dispensing mechanism 1, and the bottom surface of the cover plate 107 is flush with the bottom surface of the dispensing mechanism 1. After the operator replenishes the granular preparation into the dispensing bottle 3, the medicine information of the granular preparation in the dispensing bottle 3 is correspondingly written into the chip 106, and after the dispensing mechanism 1 is installed, the card reader 210 of the driving mechanism 2 automatically identifies the medicine information of the granular preparation in the dispensing bottle 3. Drug information includes, but is not limited to, type of granulation, gram weight.

Preferably, in this embodiment, the dispensing bottle 3 is provided with a plurality of dispensing bottles for containing the same or different granular preparations, each dispensing bottle 3 is provided with a chip 106 corresponding to the dispensing bottle 3 and used for writing information of the medicine stored in the dispensing bottle, and when an operator replaces the dispensing bottle 3, the chip 106 at the bottom of the dispensing mechanism 1 needs to be replaced correspondingly, so as to improve the working efficiency of the device.

In this embodiment, the overall shape of the dispensing mechanism 1 is a cylinder or a square column, preferably a square column. The bottom of the placement groove 2021 is hollowed out, the bottom of the driving component self-regulation mechanism 1 is in transmission connection with the regulation mechanism 1, and the card reader 210 is arranged at one corner of the bottom of the placement groove 2021.

In this embodiment, the change process of the dispensing bottle 3 of the granular preparation quantitative subpackaging device is as follows:

when the residual amount of the granular preparation in the dispensing bottle 3 is insufficient, the dispensing bottle 3 and the dispensing mechanism 1 are detached from the driving mechanism 2, the mouth of the dispensing bottle 3 is placed upwards, then the dispensing mechanism 1 is detached from the mouth of the dispensing bottle 3, and the chip 106 at the bottom of the dispensing mechanism 1 is taken out. Taking a new dispensing bottle 3 filled with granular preparation, opening the bottle mouth of the new dispensing bottle 3, placing the bottle mouth upwards, then installing the dispensing mechanism 1 at the bottle mouth of the dispensing bottle 3, and installing the chip 106 corresponding to the new dispensing bottle 3 at the bottom of the dispensing mechanism 1, wherein the dispensing mechanism 1 can plug the bottle mouth of the dispensing bottle 3 at the moment. Finally, the dispensing mechanism 1 and the dispensing bottle 3 are mounted on the driving mechanism 2, during mounting, the mounting angle of the dispensing mechanism 1 needs to be ensured to be accurate, after mounting, an indicator light of a circuit where the reed switch 209 is located is turned on, and the card reader 210 automatically reads medicine information in the chip 106.

EXAMPLE III

As shown in fig. 1 to 9, in this embodiment, the driving assembly in the housing 201 of the driving mechanism 2 includes a first motor 203 and a second motor 204, the first motor 203 and the second motor 204 are respectively in transmission connection with the first dispensing plate 103 and the second dispensing plate 104 through a first lead screw nut assembly 205 and a second lead screw nut assembly 206, the quantitative dispensing device realizes the dispensing function by controlling the first motor 203 and the second motor 204 to operate, and the dispensing mechanism 1 is driven to dispense the granular preparation quantitatively contained in the dispensing bottle 3.

Specifically, the first motor 203 and the second motor 204 are respectively fixedly mounted on a bottom plate of the housing 201 through bolts, the first motor 203 and the second motor 204 are arranged side by side, output ends of the first motor 203 and the second motor 204 are respectively connected with a first lead screw and a second lead screw of the first lead screw nut assembly 205 and the second lead screw assembly 206 through a coupler, end portions of the first lead screw and the second lead screw are respectively mounted on the bottom plate of the housing 201 through a support and a bearing in an axial limiting manner, the first nut and the second nut are respectively mounted on the bottom plate of the housing 201 through a sliding rail in a circumferential limiting manner, and the first lead screw and the first nut, and the second lead screw and the second nut are respectively in threaded transmission connection.

The first nut and the second nut are further provided with a first push rod 207 and a second push rod 208 respectively, and the first push rod 207 and the second push rod 208 both extend to the lower part of the placement groove 2021 and are connected with the first dispensing plate 103 and the second dispensing plate 104 of the dispensing mechanism 1 respectively. The first motor 203 and the second motor 204 respectively drive the first lead screw and the second lead screw of the first lead screw nut assembly 205 and the second lead screw nut assembly 206 to rotate, so as to drive the first nut and the second nut to translate, and the first nut and the second nut respectively drive the first dispensing plate 103 and the second dispensing plate 104 to translate through the first push rod 207 and the second push rod 208.

Preferably, the discharge plate 102 is provided with a guide groove 111 extending along the extending direction of the sliding groove 113, the bottom of the first dispensing plate 103 and the bottom of the second dispensing plate 104 are respectively provided with a driving block 109 protruding into the guide groove 111 and slidably fitting with the groove wall of the guide groove 111, the bottom of the driving block 109 is provided with a driving hole 110, a first nut of the first lead screw nut assembly 205 is connected with the driving hole 110 on the first dispensing plate 103 through a first push rod 207, and a second nut of the second lead screw nut assembly 206 is connected with the driving hole 110 on the second dispensing plate 104 through a second push rod 208.

In this embodiment, the first dispensing plate 103 has a first position and a second position, in the first position, an end surface of the first dispensing plate 103 close to the second dispensing plate 104 is aligned with a side of the discharge port 1021 far away from the return spring 105, in the second position, an end surface of the first dispensing plate 103 close to the second dispensing plate 104 is aligned with a side of the discharge port 1012 far away from the return spring 105, and the first motor 203 drives the first dispensing plate 103 to slide between the first position and the second position.

Preferably, a photoelectric switch for identifying the moving positions of the first dispensing plate 103 and the second dispensing plate 104 is further arranged in the driving mechanism 2 and/or the dispensing mechanism 1, and specifically, the photoelectric switch is arranged in the housing 201 of the driving mechanism 2, and the positions of the first dispensing plate 103 and the second dispensing plate 104 are obtained by sensing the positions of the first nut and the second nut, so as to control the start and stop of the first motor 203 and the second motor 204.

In this embodiment, the working process of the granular preparation quantitative subpackaging device is as follows:

initially, the first dispensing plate 103 is located at a first position, and the second dispensing plate 104 is attached to the first dispensing plate 103. When the granular preparation in the dispensing bottle 3 needs to be dispensed, the first motor 203 drives the first dispensing plate 103 to slide towards the first direction, the second motor 204 drives the second dispensing plate 104 to slide towards the first direction, and meanwhile, the second dispensing plate 104 slides towards the first direction for a certain distance relative to the first dispensing plate 103, so that a cavity 114 is formed between the first dispensing plate 103 and the second dispensing plate 104, and the granular preparation in the dispensing bottle 3 falls into the cavity 114 from the feeding hole 1012. The first motor 203 and the second motor 204 drive the first dispensing plate 103 and the second dispensing plate 104 to synchronously slide in the second direction, so that the cavity 114 slides in the second direction, when the first dispensing plate 103 slides to the first position, the first dispensing plate 103 stops sliding, the second dispensing plate 104 continues sliding in the second direction until the second dispensing plate is attached to the first dispensing plate 103, and in the process, all the granular preparation in the cavity 114 leaks out of the discharge port 1021.

In this embodiment, the first direction is a direction extending from the discharge port 1021 and the feed port 1012, and the second direction is a direction extending from the feed port 1012 and the discharge port 1021. The distance that the second dispensing plate 104 moves in the first direction relative to the first dispensing plate 103 is determined by the volume of the cavity 114, i.e. by the amount of single dispense preset by the dispensing mechanism 1.

Preferably, in this embodiment, after the first dispensing plate 103 moves to the first position, the second dispensing plate 104 moves to the first direction after moving to the second direction for a certain distance, so that the second dispensing plate 104 reciprocates many times, thereby ensuring that all the granular preparations in the cavity 114 are discharged completely, and improving the dispensing precision.

Example four

As shown in fig. 1 to 7 and 10 to 12, in the present embodiment, the driving assembly in the housing 201 of the driving mechanism 2 includes a motor 214 and a spring 217, the motor 214 is in transmission connection with the second screw nut assembly 206 for driving the second dispensing plate 104 to move in the first direction or the second direction, the spring 217 is in transmission connection with the first screw nut assembly 205 for driving the first dispensing plate 103 to move in the first direction, and the motor 214 is in transmission connection with the first screw nut assembly 205 for driving the first dispensing plate 103 to move in the second direction, and simultaneously, the spring 217 stores the winding force. The difference between this embodiment and the third embodiment is that, in this embodiment, the quantitative dispensing device only needs to control one motor 214 to operate, and the dispensing mechanism 1 can be driven to complete the whole dispensing process, so that the control system and the control process of the quantitative dispensing device are simplified, and the operation difficulty and the error rate of the device are reduced.

Specifically, the output end of the motor 214 is connected with a driving shaft through a coupler, the driving shaft is installed on the bottom plate of the shell 201 through a bearing, a first driving gear and a second driving gear are installed on the driving shaft, a first driven gear is installed at the end of the first lead screw, a second driven gear is installed at the end of the second lead screw, the first driven gear and the second driven gear are respectively meshed with the first driving gear and the second driving gear to form a first transmission gear set 212 and a second transmission gear set 213, the motor 214 drives the first lead screw to rotate unidirectionally through the first transmission gear set 212, and the motor 214 drives the second lead screw to rotate bidirectionally through the second transmission gear set 213.

The clockwork 217 is arranged at one end, far away from the first driven gear, of the first screw rod, one end of the clockwork 217 is connected with the first screw rod, the other end of the clockwork 217 is connected with the shell 201, and when the elastic force of the clockwork 217 is released, the first screw rod can be driven to rotate, so that the first dispensing plate 103 is driven to move towards the first direction.

In this embodiment, the first driving gear of the first transmission gear set 212 is connected to the driving shaft through the one-way bearing 215, and the second driving gear is keyed to the driving shaft.

For example, when the driving shaft rotates forward, the second driving gear is driven to rotate forward, the second lead screw is driven to rotate backward, the second dispensing plate 104 is driven to move in the first direction, in the process, the first driving gear does not rotate along with the driving shaft, the driving force of the motor 214 cannot be transmitted to the first lead screw, and the first lead screw rotates backward under the driving of the spring 217 to drive the first dispensing plate 103 to move in the first direction. When the driving shaft rotates reversely, the driving shaft drives the second driving gear to rotate reversely to drive the second lead screw to rotate forwardly, and meanwhile, the driving shaft drives the first driving gear to rotate reversely to drive the first lead screw to rotate forwardly, so that the motor 214 drives the first dispensing plate 103 and the second dispensing plate 104 to move synchronously in the second direction. When the first screw rod rotates forwards, the clockwork spring 217 winds up to store force.

Preferably, in this embodiment, the first lead screw nut assembly 205 and the second lead screw nut assembly 206 are arranged in parallel, and both have the same pitch and the same rotation direction, and the first transmission gear set 212 and the second transmission gear set 213 have the same transmission ratio.

In this embodiment, the feeding holes 1012 and the discharging holes 1021 are arranged in a staggered manner, the first dispensing plate 103 is arranged on one side of the feeding hole 1012 close to the discharging holes 1021, and the second dispensing plate 104 is arranged on one side of the first dispensing plate 103 close to the feeding hole 1012. The first dispensing plate 103 has a first position where an end surface of the first dispensing plate 103 close to the second dispensing plate 104 is aligned with a side of the discharge port 1021 away from the feed port 1012, and a second position where an end surface of the first dispensing plate 103 close to the second dispensing plate 104 is aligned with a side of the feed port 1012 close to the discharge port 1021.

The driven gear of the first transmission gear set 212 is in transmission connection with the first lead screw through a torque limiter 216. Specifically, the inner layer of the torque limiter 216 is connected with the first screw rod in a circumferential limiting manner, and the driven gear of the first transmission gear set 212 is connected with the outer layer of the torque limiter 216 in a circumferential limiting manner.

Initially, the first dispensing plate 103 is in the first position, when the motor 214 drives the first dispensing plate 103 to move in the second direction and return to the first position again, the winding of the spring 217 is completed, at this time, the elastic force of the spring 217 is equal to the maximum friction force between the inner layer and the outer layer of the torque limiter 216, when the motor 214 continues to drive the first driving gear to rotate in the reverse direction, the first driven gear rotates in the forward direction, the inner layer of the torque limiter 216 is stationary, and only the outer layer rotates along with the first driven gear, that is, the torque limiter 216 is in a slipping state. In this process, the first dispensing plate 103 is stopped and only the second dispensing plate 104 continues to slide in the second direction.

Preferably, in this embodiment, the maximum friction between the inner and outer layers of the torque limiter 216 is less than or equal to the spring force of the full wind on the spring 217. Further preferably, the maximum friction force between the inner layer and the outer layer of the torque limiter 216 is smaller than the elastic force when the spring 217 is fully wound, that is, when the first dispensing plate 103 slides to the first position, the spring 217 is not fully wound, and a certain margin is still provided, but at this time, the elastic force provided by the spring 217 reaches the maximum friction force between the inner layer and the outer layer of the torque limiter 216, the outer layer of the torque limiter 216 cannot drive the inner layer of the torque limiter 216 to rotate any more, and the inner layer and the outer layer of the torque limiter 216 start to slip.

In this embodiment, the torque limiter 216 is specifically a friction-type torque limiter.

Preferably, in this embodiment, a limiting structure is disposed between the first dispensing plate 103 and the groove wall of the sliding groove 113, the limiting structure includes a limiting groove 115 and a limiting protrusion 116 that are engaged with each other, the limiting groove 115 is disposed on one of the side wall of the first dispensing plate 103 and the groove wall of the sliding groove 113 and extends along the sliding direction of the first dispensing plate 103, and the limiting protrusion 116 is disposed on the other of the side wall of the first dispensing plate 103 and the groove wall of the sliding groove 113 and extends at least partially into the limiting groove 115 to abut against the limiting groove 115 when the first dispensing plate 103 slides to the first position and/or the second position.

Preferably, the limiting groove 115 is disposed on the first dispensing plate 103, and the limiting protrusion 116 is disposed on a groove wall of the sliding groove 113. When the first dispensing plate 103 moves to the first position, the first dispensing plate 103 abuts against the groove wall of the chute 113 at the end far from the second dispensing plate 104, and/or the groove wall of the limiting groove 115 at the end near the second dispensing plate 104 abuts against the limiting protrusion 116; when the first dispensing plate 103 moves to the second position, the groove wall of the limiting groove 115 at the end away from the second dispensing plate 104 abuts against the limiting protrusion 116. Further preferably, when the first dispensing plate 103 moves to the first position, the first dispensing plate 103 abuts against a groove wall of the chute 113 at an end far from the second dispensing plate 104, and simultaneously, a groove wall of the limiting groove 115 at an end near the second dispensing plate 104 abuts against the limiting protrusion 116.

In this embodiment, the working process of the granular preparation quantitative subpackaging device is as follows:

initially, the first dispensing plate 103 is in the first position, the second dispensing plate 104 is attached to the first dispensing plate 103, and the spring 217 is wound. When the granular preparation in the dispensing bottle 3 needs to be dispensed, the motor 214 drives the second dispensing plate 104 to slide towards the first direction, meanwhile, the elasticity of the spring 217 is released, the spring 217 drives the first dispensing plate 103 to slide towards the first direction, when the first dispensing plate 103 reaches the second position, the movement is stopped, and when the second dispensing plate 104 moves to the preset position, the movement is stopped. In this process, the second dispensing plate 104 is moved in the first direction relative to the first dispensing plate 103 by a predetermined distance determined by the volume of the cavity 114, i.e. by the amount of single dispense preset by the dispensing mechanism 1. The granular formulation falls into the cavity 114 from the inlet 1012, and after the cavity 114 is filled with the granular formulation, the motor 214 rotates reversely to drive the first dispensing plate 103 and the second dispensing plate 104 to move synchronously in the second direction. When the first dispensing plate 103 returns to the first position, the torque limiter 216 starts to slip, and the motor 214 drives the second dispensing plate 104 to move continuously in the second direction until the second dispensing plate 104 is attached to the first dispensing plate 103.

In this embodiment, the first direction is a direction pointing from the first position to the second position of the first dispensing plate 103, and the second direction is a direction pointing from the second position to the first position of the first dispensing plate 103.

Preferably, in this embodiment, a photoelectric switch is further disposed in the housing 201 of the driving mechanism 2, and the photoelectric switch is configured to identify a position of the second nut when the second dispensing plate 104 is attached to the first dispensing plate 103, and a position of the second nut when the second dispensing plate 104 moves to a preset position, and is configured to transmit a signal to a control unit of the apparatus when the second dispensing plate 104 moves to be attached to the first dispensing plate 103 and when the second dispensing plate 104 moves to the preset position, so as to control the motor 214 to stop operating.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments using the above-mentioned teachings without departing from the scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are also within the scope of the present invention.

Claims (10)

1. A granular preparation quantitative subpackaging device comprises a dispensing mechanism (1) for quantitatively subpackaging granular preparations and a driving mechanism (2) for driving the dispensing mechanism (1) to operate; the dispensing bottle (3) filled with granular preparation is inversely arranged at the top of the dispensing mechanism (1) and is characterized in that a placing groove (2021) is arranged at the top of a shell (201) of the driving mechanism (2), and the dispensing mechanism (1) is detachably arranged in the placing groove (2021).

2. The granular preparation quantitative distribution device according to claim 1,

one of the side wall of the dispensing mechanism (1) and the groove wall of the placing groove (2021) is embedded with magnetic steel (108), and the other of the side wall of the driving mechanism (2) and the groove wall of the placing groove (2021) is embedded with a reed switch (209); the reed switch (209) senses the position of the magnetic steel (108) so as to calibrate the relative position between the driving mechanism (2) and the dispensing mechanism (1).

3. The granular preparation quantitative distribution device according to claim 2, further comprising:

the mortise (112) extends along the installation direction of the dispensing mechanism (1) and is arranged on the peripheral wall of the dispensing mechanism (1) and/or the groove wall of the placing groove (2021);

the tenons (211) are arranged on the wall of the placing groove (2021) and/or the peripheral wall of the dispensing mechanism (1), and the tenons (211) are correspondingly inserted into the mortises (112) one by one.

4. The quantitative split charging device for granular preparations according to claim 1, wherein the dispensing bottle (3) comprises a plurality of dispensing bottles for containing the same or different granular preparations, each dispensing bottle (3) is provided with a chip (106) corresponding to the dispensing bottle and used for writing information of medicines stored in the dispensing bottle, and the chip (106) is detachably arranged at the bottom of the dispensing mechanism (1);

the bottom of the placing groove (2021) is provided with a card reader (210) which is used for sensing the chip (106) and reading the medicine information in the chip.

5. The granular preparation quantitative distribution device according to any one of claims 1 to 4, wherein the dispensing mechanism (1) comprises:

the top of the feeding plate (101) is provided with a mounting hole (1011) for mounting the dispensing bottle (3), and the middle part of the feeding plate is provided with a feeding hole (1012) for vertically conducting the dispensing bottle (3);

the discharging plate (102) is arranged below the feeding plate (101) and is provided with discharging holes (1021) which are arranged in a staggered mode with the feeding holes (1012);

the dispensing plate is arranged between the feeding plate (101) and the discharging plate (102) in a sliding manner;

and the return spring (105) is elastically abutted with the dispensing plate and is used for driving the dispensing plate to close the feed port (1012) and/or the discharge port (1021).

6. The granular preparation quantitative distribution device according to claim 5,

the top of the discharge plate (102) is provided with a chute (113) with two closed ends, and the feed plate (101) is buckled at the notch of the chute (113) and is connected with the notch of the chute (113) through a connecting piece;

the dispensing plate comprises a first dispensing plate (103) and a second dispensing plate (104) which mutually surround the wall of the chute (113) to form a cavity (114), the cavity (114) is used for temporarily containing the granular preparation, and the first dispensing plate (103) and the second dispensing plate (104) move relatively to control the volume of the cavity (114) and move synchronously to transfer the granular preparation.

7. The quantitative distribution device for granular formulations according to claim 6, characterized in that the return spring (105) is arranged between the side of the second dispensing plate (104) far away from the first dispensing plate (103) and the wall of the chute (113); the first dispensing plate (103) has:

in the first position, the end face of one side of the first dispensing plate (103) close to the second dispensing plate (104) is aligned with one side of the discharge hole (1021) far away from the return spring (105);

in the second position, the end surface of the first regulating plate (103) close to the second regulating plate (104) is aligned with the side of the feed inlet (1012) far away from the return spring (105).

8. A metered dose dispensing apparatus for granular formulations according to claim 6, wherein the drive mechanism (2) comprises:

the first motor (203) is in transmission connection with the first dispensing plate (103) through a first lead screw nut assembly (205);

and the second motor (204) is in transmission connection with the second dispensing plate (104) through a second lead screw nut assembly (206).

9. The granular preparation quantitative distribution device according to claim 8,

a guide groove (111) extending along the extending direction of the sliding groove (113) is formed in the discharging plate (102), driving blocks (109) protruding into the guide groove (111) and matched with the groove walls of the guide groove (111) in a sliding mode are arranged at the bottom of the first dispensing plate (103) and the bottom of the second dispensing plate (104), and driving holes (110) are formed in the bottom of the driving blocks (109);

a first nut of the first lead screw nut assembly (205) is connected with a driving hole (110) on the first dispensing plate (103) through a first push rod (207), and a second nut of the second lead screw nut assembly (206) is connected with a driving hole (110) on the second dispensing plate (104) through a second push rod (208).

10. The granular preparation quantitative distribution device according to claim 9,

the driving mechanism (2) and/or the dispensing mechanism (1) are/is also internally provided with a photoelectric switch for identifying the moving positions of the first dispensing plate (103) and the second dispensing plate (104);

the photoelectric switch obtains the positions of the first dispensing plate (103) and the second dispensing plate (104) by sensing the positions of the first nut and the second nut so as to control the start and stop of the first motor (203) and the second motor (204).

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