CN113353307A

CN113353307A - Material split charging equipment

Info

Publication number: CN113353307A
Application number: CN202110620789.0A
Authority: CN
Inventors: 厉刚; 刘科; 李赫亮; 张放军
Original assignee: Beijing Junlikang Biotechnology Co ltd
Current assignee: Beijing Junlikang Biotechnology Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-09-07
Anticipated expiration: 2041-06-03
Also published as: CN113353307B; WO2022253315A1

Abstract

The invention provides material split charging equipment, which is additionally provided with a dish body oscillation mechanism, realizes the horizontal plane smooth arc motion of a dish bottom, realizes the oscillation and even shaking of materials in the dish bottom, is favorable for reducing bubbles in a culture medium, promotes the culture medium and a substance to be detected to be fully mixed, and provides conditions for realizing the function of a plate pouring method.

Description

Material split charging equipment

Technical Field

The invention relates to the fields of microbial research, medical instruments, food and drug detection, chemical engineering, clinical examination, disease control and the like, in particular to material subpackaging equipment.

Background

In food and drug detection, a culture medium is often added into a culture dish to perform a microorganism culture experiment. In an experimental sequence, dozens of sample gradient sequences are needed. Is finished manually, thereby not only wasting time and energy and having high cost, but also having high risk of polluting the culture medium, and ensuring the subpackaging quality difficultly

Some devices for automatically dispensing culture medium have been proposed in the prior art. However, in the course of implementing the present invention, the applicant has found that these devices have the following technical drawbacks:

1. the fluidity of part of the culture medium is poor, and after the culture medium is added into a plate, the culture medium is difficult to completely cover the bottom of the plate, so that waste products are formed;

2. in part of application scenes, a sample to be detected needs to be added into a culture dish firstly, then a culture medium is added, and then the sample is vibrated, so that the sample is completely dispersed in the culture medium, and the existing subpackaging equipment cannot meet the use requirement;

3. in the field of food sample detection, normal samples and reference samples need to be subpackaged, however, the consistency of adding culture media in the normal samples and the reference samples is difficult to ensure by the traditional subpackaging mode;

4. the subpackaging pipeline does not work continuously for a long time, and the culture medium in the subpackaging pipeline is easy to solidify after being placed for a long time, so that the subpackaged products cannot be used normally;

5. the automatic subpackaging equipment in the prior art can only manually separate the dish bottom and the dish cover and then automatically subpackage the dish bottom, so that the labor cost is increased, and the pollution risk is increased;

6. during the dispensing process, there is still a risk of contamination of the medium and the substance to be detected.

Disclosure of Invention

Technical problem to be solved

The present invention is intended to solve at least one of the above technical problems at least in part.

(II) technical scheme

In order to achieve the above object, the present invention provides a material dispensing apparatus, comprising: a main frame; dish body translation mechanism includes: the dish body supporting plate is horizontally fixed in the main frame, a first station is limited on the dish body supporting plate, N second station holes which penetrate through the dish body supporting plate and are used for the longitudinal lifting of the bottom of the dish are formed, and N is more than or equal to 1; the dish pushing assembly is movably arranged on the dish body supporting plate and used for pushing the dish body from the first station to the position of the second station hole; dish body elevating system includes: the N top plates are horizontally arranged and are respectively concentric with the second station holes corresponding to the upper parts of the N top plates; the lifting driving assembly is used for driving the N top plates to move up and down; dish body oscillating mechanism includes: the oscillation plate is horizontally arranged below the dish body supporting plate, and N oscillation stations are formed on the oscillation plate; the oscillation driving assembly is connected with the oscillation plate and is used for driving the oscillation plate to do horizontal plane smooth arc motion through the original point position of the oscillation plate; the second station hole, the top plate and the oscillating station are correspondingly arranged, and the original point position refers to the position of the oscillating plate when the center of the oscillating station is superposed with the projections of the centers of the corresponding second station hole and the top plate on the horizontal plane.

(III) advantageous effects

According to the technical scheme, the invention has at least one of the following beneficial effects:

(1) the dish body oscillation mechanism is added, the smooth arc motion of the horizontal plane at the bottom of the dish is realized, the oscillation of the material in the bottom of the dish is realized, the reduction of bubbles in a culture medium is facilitated, the culture medium is promoted to be fully mixed with substances to be detected, and the condition is provided for realizing the function of the plate pouring method.

(2) On the basis of smooth arc motion of a horizontal plane of the dish bottom, a plurality of oscillation stations and subpackage positions of the same subpackage pipeline corresponding to the oscillation plate are arranged, materials can be filled into a plurality of dish bottoms through the same subpackage pipeline, the material adding precision of a reference sample is improved, and the complexity of equipment is reduced;

(3) the origin position of the oscillation plate is positioned by the absolute encoder, so that the separated dish bottom can accurately fall into the oscillation station, and meanwhile, the later-stage top plate can accurately penetrate through the oscillation station to move upwards.

(4) The eccentric shaft is adopted to realize the oscillation of the oscillating plate, the oscillation amplitude is large, and the structure is simple;

(5) weighing the actual subpackaged material amount before subpackaging, comparing and calculating the set subpackage amount through a controller, calibrating the subpackage amount and realizing the accurate injection of the material;

(6) in the subpackage process, if the materials in the subpackage pipelines are cooled and solidified or part of the materials are unusable, the part of the materials can be automatically injected into a specific material container, manual operation is not needed, and the waste recovery function is realized. The structure provides conditions for realizing the automation of the subpackaging process.

(7) Through the special design of the second station hole and the combination of the control logic of the controller, the automatic separation of the dish bottom and the dish cover before the subpackaging is realized, and the automatic closing of the dish bottom and the dish cover after the subpackaging is realized, so that conditions are provided for the realization of the culture medium subpackaging and the dish pouring method;

(8) the positive pressure state of clean air is maintained in the material split charging equipment through the air filter, so that the pollution risk in the material filling process is reduced; in addition, bacteria and the like in the space are killed by the ultraviolet lamp.

(9) Elevation structure: the structure is driven by a motor, and is driven by a screw rod, so that the structure is simple; the guide rod ensures stable lifting; the separation of the flat dish bottom and the flat dish cover is realized, conditions are provided for the culture medium split charging and the flat dish pouring method, and the operation is flexible.

(10) The dish pushing assembly is driven by a motor, and is driven by a gear and a rack, so that the structure is simple; and the plate separation position is accurately positioned by matching a straight guide rail with a straight guide rail to ensure the stability of the plate in the pushing process.

Drawings

FIG. 1A, FIG. 1B, FIG. 1C and FIG. 1D are respectively a perspective view, a front view, a left side view and a right side view of the assembly of the culture medium dispensing apparatus of the present embodiment.

FIG. 2 is a perspective view of an empty dish stacking rack in an embodiment of the present invention.

FIG. 3 is a perspective view of a finished dish stacking rack in an embodiment of the present invention.

Fig. 4A, 4B, 4C, and 4D are a perspective view, a front view, a left side view, and a top view, respectively, of a capsule translating mechanism in an embodiment of the present invention.

Fig. 5A, 5B, 5C, and 5D are a perspective view, a front view, a left view, and a top view of a plate lifting device according to an embodiment of the present invention.

Fig. 6A, 6B, and 6C are a perspective view, a front view, and a left view of the capsule oscillation mechanism in the present embodiment, respectively.

FIGS. 6D and 6E are top views of the oscillation plate of the vessel oscillation mechanism of the present embodiment at the first and second loading positions, respectively.

Fig. 7A, 7B, 7C, 7D, and 7E are a first angled perspective view, a second angled perspective view, a front view, a right side view, and a top view, respectively, of a weight calibration and scrap recycling mechanism in an embodiment of the present invention.

Fig. 8A, 8B, 8C, and 8D are perspective, outside-in, inside-out, and cross-sectional views, respectively, of an air filter in an embodiment of the present invention.

Detailed Description

The invention improves the traditional culture medium subpackaging equipment, can realize the mixing function while subpackaging, and provides conditions for realizing the function of the plate pouring method. In addition, the invention also adds a weighing calibration and waste recovery structure, a dish bottom/dish cover separation mechanism and the like in the culture medium subpackaging equipment, thereby increasing the automation level of the culture medium subpackaging.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.

In one exemplary embodiment of the present invention, a media dispensing apparatus is provided.

It should be clear to those skilled in the art that, for the materials to be loaded, in addition to the media sub-packaging in the embodiment, the technical solution of the present invention can also be applied to sub-packaging of a small amount of materials in the fields of medical devices, food and drug testing, chemical engineering, disease control, etc., and will not be described herein again. In addition, for the container for containing materials, except for the plate of the embodiment, the technical scheme of the invention can be applied to other dishes or similar dishes, and details are not repeated here.

FIG. 1A, FIG. 1B, FIG. 1C and FIG. 1D are respectively a perspective view, a front view, a left side view and a right side view of the assembly of the culture medium dispensing apparatus of the present embodiment. Referring to fig. 1A to fig. 1D, the medium dispensing apparatus of the present embodiment includes:

a main frame 110 forming a relatively closed space at an inner side thereof;

an empty dish stacking rack 120 disposed on the main frame 110, which provides four empty dish stacking spaces;

a finished utensil stacking rack 130 disposed on the main frame 110, which provides four stacks of finished utensils stacking space;

dish body translation mechanism includes: the dish body supporting plate 210 is horizontally fixed on the main frame, four first stations are defined on the dish body supporting plate, and four second station holes which penetrate through the dish body supporting plate and are used for the longitudinal lifting of the bottom of the dish are formed; the four first station holes are aligned with the four empty dish stacking spaces of the upper empty dish stacking frame, and the four second station holes are aligned with the four finished dish stacking spaces of the upper finished dish stacking frame; the dish pushing assembly 220 is movably arranged on the dish body supporting plate and used for pushing the dish body from the first station to the position of the second station hole;

dish body elevating system 300 includes: four top plates 310 arranged horizontally and concentrically with the four second station holes above; a lifting driving assembly 320 for driving the four top plates to move up and down;

material filling mechanism includes: two one-to-two dispensing lines (411, 412); the filling pump 421 is connected with the two one-to-two sub-packaging pipelines and is used for filling materials into the dish bottom in the oscillating station through the sub-packaging pipelines;

vessel body oscillation mechanism 500 includes: the oscillation plate 510 is horizontally arranged between the dish body supporting plate and the four top plates, and four oscillation stations are formed on the oscillation plate; the oscillation driving assembly is connected with the oscillation plate and is used for driving the oscillation plate to do horizontal plane smooth arc motion through the original point position of the oscillation plate;

the weighing calibration and waste material recovery mechanism is used for realizing waste material recovery and/or material filling amount calibration;

a cleaning mechanism comprising: an air filter 710 fixed on the baffle for filtering the external air and introducing the filtered external air into the relatively closed space, so that the relatively closed space is in a positive pressure state relative to the external atmospheric pressure; and an ultraviolet lamp 721 disposed at a position close to the dispensing pipeline.

To the culture medium dispensing equipment of this embodiment, pile up empty ware A (including ware bottom A1 and ware lid A2) in empty ware stacking space, the equipment operation back, empty ware is automatic to get into in the equipment in proper order, accomplish the ware bottom, the separation of ware lid, the injection of culture medium, the oscillation of culture medium mixes, the ware bottom, the lid of ware lid closes, and finally, the flat dish of culture medium of packing into can realize mixed function in the while of partial shipment by pushing up in finished product ware stacking space, the realization of pouring method function for the flat dish provides the condition.

Meanwhile, the empty vessel stacking space, the first station, the second station hole, the top plate, the oscillation station and the like are correspondingly arranged. Particularly, empty ware piles up the space, and first station, second station hole, roof, oscillation station, finished product ware pile up the quantity in space the same to satisfy specific relation in the position, thereby can shift simultaneously by a plurality of plates, separation and partial shipment raise the efficiency.

It should be understood by those skilled in the art that although N is 4, that is, four empty boat stacking spaces, first station, second station hole, top plate, oscillation station, and finished boat stacking space are provided in the present embodiment, N may take other values, for example, 1, 2, 3, 5, 6, 7, 8, etc. However, considering the subsequent one-to-two dispensing line, N preferably takes an even number.

It should be noted that, for the medium dispensing apparatus shown in the present embodiment, compared with the conventional technology, the following five features are mainly provided, and for each of the five features, it is independent, i.e. it can be independently applied to the medium dispensing apparatus, even if the medium dispensing apparatus does not include other features as in the above innovation:

1. increased dish body oscillation mechanism, this dish body oscillation mechanism can realize that the oscillation of culture medium in the dish bottom is shaken evenly, is favorable to reducing the bubble in the culture medium, impels the culture medium and treats the abundant mixing of material, provides the condition for the realization of plate pouring method function.

2. Set up the partial shipment pipeline of a pair of many, can be by the material of annotating at the bottom of same partial shipment pipeline to a plurality of wares, promoted the material of contrast appearance and added the precision, reduced the complexity of equipment.

3. The weighing calibration and waste recovery mechanism is added, specifically, a material container is added, and a preset amount of culture medium is injected into the material container through a subpackaging pipeline before formal subpackaging, so that the subpackaging amount is calibrated. In addition, in the subpackaging process, overdue materials are discharged into the material container when the materials are contained, so that the recovery function of waste materials is realized, and the dilemma that the subpackaging can only be carried out all the time and the culture medium is solidified and the subpackaging is continued in the traditional technology is overcome.

4. The design and the control logic that combine second station hole, ware lid normal position stops, vibrates the motion at the bottom of the ware, realizes the autosegregation at the bottom of the ware, the ware lid before the culture medium partial shipment, and the lid of ware lid closes at the bottom of the ware behind the culture medium partial shipment, has promoted the automation level of equipment greatly, and the method of pouring provides the condition for culture medium partial shipment and plate is realized. Meanwhile, the time of the culture medium exposed to the external environment is reduced to the maximum extent, and the pollution risk is reduced.

5. The positive pressure state of clean air is maintained inside the material subpackaging equipment through the air filter, namely the inside state that the clean air overflows always of the material subpackaging equipment, and external dirty air has no chance to enter, so that the pollution risk in the material filling process is favorably reduced.

Of course, there are several points different from the conventional art in addition to the features of the above five aspects, which will be described in detail hereinafter.

The following describes each component of the medium dispensing apparatus of this embodiment in detail. The above features will become more apparent in the detailed description of the various components.

Frame and baffle

Referring to fig. 1A to 1D, the frame 110 encloses the overall structure of the medium dispensing apparatus. In the overall structure, the body is roughly in the shape of a rectangular parallelepiped, and an empty dish stacking rack 120 and a finished dish stacking rack 130 are provided above. The body is divided into two parts with a certain height difference. The first part includes: a capsule holder 210, a capsule pushing assembly 220, a capsule lifting mechanism 300, etc. The second portion is spaced apart from and slightly lower than the first portion, and is primarily for filling a culture medium into a dish bottom held in a shaker station, comprising: dispensing lines (411, 412), a filling pump 420 and the like. The oscillation plate 510 is located at the first portion during the up-and-down motion of the dish base, and moves circumferentially between the first portion and the second portion during the smooth arcuate motion of the lower horizontal surface driven by the oscillation drive.

And is closed at the periphery of the frame 110 by a shutter. In the drawings of the present embodiment, the baffle portion is omitted in order to clearly understand the internal relationship of each internal element. Through setting up the baffle, form relative enclosure space at the frame inboard. A positive pressure state is formed in the relatively closed space, so that the culture medium is prevented from being polluted by dust particles in the outside air.

Two, empty ware stack frame

FIG. 2 is a perspective view of an empty dish stacking rack in an embodiment of the present invention. Referring to fig. 1A to 1D and fig. 2, the empty dish stacking rack 120 includes: the upper guide plate 121, the lower guide plate 122, and 4 empty dish stacking spaces defined by the pillars 123. Each empty dish stacking space is limited by four upright posts, and the upper ends and the lower ends of the four upright posts are respectively fixed on the upper guide plate and the lower guide plate. The upper guide plate 121 provides a dish entrance to the four empty dish stacking spaces. The lower guide plate 122 provides a dish outlet for the four empty dish stacking spaces. The four capsule outlets of the lower guide plate 122 are aligned with the four first stations on the capsule holder below the baffle.

In this embodiment, the baffle above the main frame is provided with holes for communicating the four dish outlets of the empty dish stacking rack with the four first stations on the dish body supporting plate below. The empty boat stack 120 is disposed on a baffle above the main frame 110, and it may be removed therefrom. In practical use, empty plates are stacked in the empty plate stacking frame in advance, the columns can guarantee the stacking control to be aligned, and then the empty plate stacking frame is fixed on the baffle. After equipment starts, empty ware can leave under the condition in space in the below, falls into first station under the action of gravity, waits to push away the ware subassembly and pushes it into second station hole.

In this embodiment, a mechanism for separating the dish bottom and the dish cover of the dish is specially designed, so that the dish a loaded into the empty dish stacking rack includes both the dish bottom a1 and the dish cover a 2. The plates are closed prior to entering the media dispensing apparatus, thereby reducing the risk of contamination of the plates.

Third, finished product ware stacking rack

FIG. 3 is a perspective view of a finished dish stacking rack in an embodiment of the present invention. Referring to fig. 1A to 1D and fig. 3, the finished plate stack 130 is substantially similar to the empty plate stack, and includes: an upper guide plate 131; a lower guide plate 132; and 16 columns 133 fixed between the upper and lower guide plates. The 16 columns are grouped into 4 columns to define a finished vessel stacking space. The upper guide plate 131 provides a boat outlet for the four finished boat stacking spaces. The lower guide plate provides a capsule access to the four finished capsule stacking spaces. The four capsule inlets of the lower guide plate are aligned with the four second station holes on the capsule supporting plate 210 below the baffle.

Baffles 134 which can be turned upwards in one direction under the action of external force are arranged on the front side and the rear side of each dish inlet on the lower guide plate. When the plate moves upwards through the baffle under the action of the top plate, the baffle 134 is pushed open and enters a finished product dish stacking space; the top plate then moves downwards and the plate is left in the finished plate stack space by the action of the two baffles.

It should be noted that, in this embodiment, the baffles of the four dish inlets on the same side are disposed along the long side of the lower guide plate, and the four baffles share the same rotating shaft 135, but each baffle may be turned independently. So set up, when four plates move up together, exert force together. Less force is required to push the baffle away more easily than if each plate were to push the baffle away from the inlet of the plate alone. In addition, the baffle plate is simpler in structure and easier to maintain.

In addition, handles 136 are provided on the left and right sides of the lower guide plate to facilitate removal of the finished plate stack from the frame for transfer of the plate.

In this embodiment, the baffle above the main frame is provided with holes for communicating the four ware inlets of the finished ware stacking rack and the four second station hole positions on the ware body supporting plate below. The product stacking shelf 130 is disposed on a baffle above the main frame 110. When the finished plate in the finished plate stacking rack is fully stacked, the finished plate can be taken down from the baffle plate.

In actual use, the empty finished ware stack 130 is fixed on the baffle above the main frame, and the four ware inlets below the empty finished ware stack are aligned with the second station holes on the ware body pallet below the empty finished ware stack through the holes on the baffle. After the equipment is started, the dish body filled with materials and closed with the dish cover is upwards supported by the top plate, passes through the upper baffle plate of the main frame, pushes away the baffle 134 at the inlet of the dish, enters the finished product dish stacking space and is sequentially stacked. After the equipment is started, the finished vessel stacking rack can be taken down from the baffle plate to be correspondingly cultured or processed.

Four, dish body translation mechanism

Fig. 4A, 4B, 4C, and 4D are a perspective view, a front view, a left side view, and a top view, respectively, of a capsule translating mechanism in an embodiment of the present invention. Referring to fig. 1A to 1D and fig. 4A to 4D, the dish body translation mechanism 200 includes: a capsule holder 210, a capsule pushing assembly 220, and a translation drive mechanism 230.

The dish body supporting plate 210 is horizontally fixed in the main frame, and the specific fixing mode is described later. Four first station holes 211 are defined on the dish body supporting plate, and four second station holes 212 which penetrate through the dish body supporting plate and are used for longitudinally lifting the bottom of the dish are formed. Wherein, the first station hole 211 is aligned with the dish outlet of the four empty dish stacking spaces of the empty dish stacking rack above the frame. The second station hole 212 is aligned with the dish inlets of the four finished dish stacking spaces of the finished dish stacking rack above the frame.

And the dish pushing assembly 220 is fixed on the dish body supporting plate and used for pushing the dish body from the first station 211 to the position of the second station hole 212. The push dish assembly 220 includes: the two sliding rails 221 are arranged on the dish body supporting plate and extend in the direction from the first station to the second station hole; the dish pushing plate 222 is arranged on the sliding rail through a sliding block, a rack 223 is arranged on one side of the dish pushing plate close to the dish body supporting plate, and the rack extends along the direction from the first station to the second station hole; and the transmission gear 224 is fixed on one side of the dish body supporting plate close to the dish pushing plate, and the outer teeth of the transmission gear are meshed with the outer teeth of the rack.

Translation drive mechanism 230 for driving the movement of the push boat assembly, comprising: a push plate driving motor 231 fixed on the main frame with its output shaft facing upward; the transmission shaft 232 is connected with an output shaft of the dish pushing driving motor downwards and penetrates through the dish body supporting plate upwards; the outer ring of the bearing seat 233 is fixed on one side of the dish body supporting plate far away from the dish pushing plate, and the inner ring of the bearing seat is sleeved outside the transmission shaft, so that the positioning of the transmission shaft and the supporting and positioning of the dish body supporting plate are realized; the drive shaft 232 is connected to the axle center of the drive gear 224 through the capsule holder.

In addition, dish body translation mechanism still includes: front and rear limit switches (241, 242) for limiting the forward and backward movement limit positions of the pusher plate, respectively; and four detecting elements 243 for detecting whether there is a plate falling down at the four first stations to control the distribution of the culture medium.

The controller is connected with the dish pushing driving motor and the four detection elements and is used for realizing the following control logics:

in the initial state, the pusher plate 222 is retracted to the rear limit switch 242;

in the working state, the empty plate falls to the first station 211 of the plate body from the empty plate stacking rack, the translation driving motor 230 is electrified in the forward direction, and the transmission gear 225 rotates through the transmission shaft 232. The drive gear 225 and rack cooperate to drive the plate 222 to move the empty plate from the first station 211 to the second station hole 212, i.e., the plate-separating position. In the moving process, the sliding block and the dish pushing plate 222 move synchronously on the sliding rail 221, so that the dish pushing plate 222 is ensured to move linearly. And when the plate reaches the second station hole, if the plate is detected to be arranged at the position of the second station hole, the plate is driven to perform the later-stage subpackaging action. Meanwhile, the dish pushing plate touches the front limit switch, the control logic enables the translation driving motor to run reversely, the dish pushing plate moves reversely, returns to the initial position and touches the initial position limit switch.

Therefore, under the control of the controller, the dish body translation mechanism achieves the function of pushing the dish from the first station to the second station hole.

Those skilled in the art should understand that the number or arrangement of the components such as the slide rail, the rack, the limit switch, the detection element, the bearing, etc. can be adjusted according to the actual needs of the scene. In addition, the dish pushing assembly and the translation driving mechanism are also only examples, and can be adjusted to other types of dish pushing assemblies and translation driving mechanisms according to actual scene requirements, as long as the function of pushing the first station to the second station hole by the dish can be realized.

It is also noted that the second station hole 212 has an outer diameter that is larger than the outer diameter of the capsule bottom and smaller than the outer diameter of the capsule lid. And on the dish body supporting plate, a semicircular groove for clamping the dish cover is formed on the outer side of the second station hole and used as a hard limit for the plate to move to the position of the second station hole. The special design of the second station hole is matched with the movement of the top plate to realize the separation and the closing of the dish body and the dish cover, and the second station hole is described in detail in the following.

Lifting mechanism for dish body

Fig. 5A, 5B, 5C, and 5D are a perspective view, a front view, a left view, and a top view of a plate lifting device according to an embodiment of the present invention. Referring to fig. 1A to 1D and fig. 5A to 5D, the dish body lifting mechanism 300 includes: four top plates 311 and a lift drive assembly.

The four top plates 311 are horizontally disposed corresponding to the four second station holes. The radial dimension of the top plate 311 is slightly smaller than the dimensions of the second station hole and the through hole inside the oscillation station, so as to pass through the second station hole and the through hole.

The lift drive assembly includes: two guide rods 321 fixed to the main frame, extending upward without interfering with other members; a lifting motor 322 fixed on the frame, the output shaft of which is connected with a screw rod 323; the lifting plate 324 extends upwards to form four supporting arms 325, is respectively connected with the corresponding top plates 311, is fixed with a screw rod nut 326 at the position corresponding to the screw rod on the upper surface, and is fixed with a linear bearing 327 at the position corresponding to the guide rod; the lead screw 323 is engaged with the lead screw nut 326, and the guide bar 321 is engaged with the linear bearing 327.

Here, it is necessary to emphasize four height positions at which the top plate is located in the longitudinal direction by the drive of the vessel body elevating mechanism: at the upper limit height, the top plate pushes the plate into the finished product plate stacking space; at the first height, the top plate is flush with the dish body supporting plate; at the second height, the top plate is flush with the oscillating plate; at the lower limit height, the top plate is lower than the bottom surface of the oscillating plate.

In addition, dish body elevating system still includes: three limit switches 329 corresponding to the upper limit height, the first height, and the lower limit height of the top plate, respectively. In this embodiment, the limit switch bracket 328 is longitudinally arranged, and the three limit switches are fixed on the limit switch bracket. Of course, other fixed mounting methods can be adopted for the three limit switches.

The controller is connected with the lifting motor 322 and is used for realizing the following control logics:

1. in the initial state, the lifting plate 324 is in the middle position, the four top plates are located at the first height in the longitudinal direction, the four top plates 311 are flush with the upper surface of the plate support plate and located at the position of the second station hole, and the lifting plate touches the limit switch corresponding to the first height.

2. When the empty plate is moved to the second station hole position, the plate is placed on the top plate 311. The elevating motor 322 is energized in the reverse direction to drive the screw 323 to rotate. The lead screw 323 and lead screw nut 326 cooperate to lower the lift plate 324 and top plate 311 synchronously, thereby lowering the plate together.

The diameter of the opening of the second station hole 212 is larger than the bottom of the dish and smaller than the bottom of the dish, so that the bottom of the flat dish can descend and move, but the flat dish cover is left on the flat dish supporting plate, and the flat dish cover and the bottom of the dish are separated.

3. The top plate 311 is at the second height in the moving process, and when the dish bottom descends to the limit hole of the oscillation plate, the dish bottom is clamped in the oscillation station of the oscillation plate and does not descend any more, but the lifting plate 324 and the top plate continue to descend until the lifting plate touches the limit switch with the lower limit height and stops at the lower limit height. The dish bottom and the top plate are separated, so that the realization of the subsequent subpackaging oscillation function becomes possible.

4. When the bottom of the dish finishes split charging oscillation, the driving motor is electrified positively to enable the lifting plate 324 to ascend and drive the top plate 311 to ascend from the lower limit height; at the second height position, the top plate 311 holds the bottom of the dish and then continues to rise; at the first height, the dish bottom is matched with the dish cover; then the top plate supports the plate to continuously rise, pushes away a baffle below the finished product plate stacking space, pushes the plate into a finished product stacking frame, and at the moment, the top plate 311 is located at the upper limit position and touches a limit switch corresponding to the upper limit position; and the top plate is moved downwardly to the first height.

The lifting plate 324 touches the upper limit position limit switch and then descends to the initial state again in the reverse direction to wait for the next action.

Under the control of the controller, the dish body lifting mechanism realizes the separation of the dish body and the dish cover; the dish bottom is transferred to the position of the oscillating station from the position of the second station hole; after the subpackage and the oscillation of the culture medium are completed, the dish bottom moves upwards from the position of the oscillation station, the second station hole in the dish body supporting plate is penetrated, the dish cover is covered, the whole dish moves upwards, the baffle plate of the main frame is penetrated, and the filled dish is pushed into a finished product dish stacking space.

Those skilled in the art will understand that the number or arrangement of the components such as the guide rod and the limit switch can be adjusted according to the actual requirements of the scene. The above-described elevation driving unit is also merely an example, and may be adjusted to other types of elevation driving units according to actual scene requirements, as long as the vertical movement of the top plate can be driven.

In this embodiment, design and control logic that combine second station hole realize at the bottom of the culture medium partial shipment front dish, the autosegregation of dish lid, and the bottom of the culture medium partial shipment back dish, the lid of dish lid close, furthest reduced the culture medium expose with external environment's time, reduced the pollution risk. Meanwhile, the automation level of the equipment is greatly improved, and conditions are provided for realizing culture medium subpackaging and a plate pouring method.

Vessel body oscillating mechanism

Fig. 6A, 6B, and 6C are a perspective view, a front view, and a left view of the capsule oscillation mechanism in the present embodiment, respectively. Fig. 6D and 6E are plan views of the oscillation plate in the capsule oscillation mechanism of the present embodiment at the first and second loading positions, respectively.

Referring to fig. 1A to 1D and fig. 6A to 6E, the dish body oscillation mechanism 500 includes: an oscillating plate 510 which is horizontally arranged below the dish body supporting plate and is provided with four oscillating stations (511, 512, 513 and 514); and the oscillation driving assembly is connected with the oscillation plate 510 and used for driving the oscillation plate to do horizontal plane smooth arc motion so as to drive the dish bottom positioned at the oscillation station and the culture medium in the dish bottom to oscillate.

For the oscillating station 511, a through hole 511a for the top plate to move up and down is formed in the inner side of the oscillating station 511, so that the dish bottom can be conveyed up and down.

With reference to fig. 1A to 1D and fig. 6A to 6E, the oscillation driving assembly includes: an active part; and two driven parts which are arranged symmetrically left and right relative to the driving part.

The active part includes: a first mount 521 fixed to the main frame, and forming a first installation plane in a horizontal direction; a torque output member that outputs torque rotating on a horizontal plane; a driving eccentric shaft 522 having a driving end rotatably coupled to the torque output part, an axis of the driving end not coinciding with an axis of the torque output part outputting the torque, and a free end rotatably coupled to the oscillation plate; the torque output member drives the driving eccentric shaft 522 to rotate, and further drives the oscillating plate 510 to perform a horizontal smooth arc motion.

The torque output member includes: an oscillating motor 523 fixed to a first side of the first mounting plane, a torque output shaft of which passes through the first mounting plane; a first gear 524 installed at a second side of the first installation plane, a center of which is connected to a torque output shaft of the oscillation motor; a second gear 525 installed at a second side of the first installation plane, having an outer tooth engaged with an outer tooth of the first gear, and having a center connected to a detection shaft of the position encoder; the driving end of the driving eccentric shaft is connected to the second gear, and the axis of the driving end and the axis of the second gear are staggered. Wherein, the oscillating motor is a stepping driving motor.

The driven part includes: a pillar 531 longitudinally fixed to the frame; a bearing block 532 fixed to the top end of the column; a bearing 533, one of an inner ring and an outer ring of which is fixed to the bearing housing; a driven eccentric shaft 534, whose driving end is rotatably coupled to the other of the inner race and the outer race of the bearing, and whose axis is not coincident with the central axis of the bearing, has its free end rotatably coupled to the oscillating plate 510.

Through above initiative portion and two driven parts, under the drive of oscillating motor, can realize that the vibration board is circular motion along the horizontal plane to the realization is to the vibration mixing of culture medium wherein.

The controller is connected to the oscillation motor 523 for controlling the motion of the horizontal plane smooth arc of the oscillation plate.

For the oscillating plate, it is in three key positions in the horizontal plane smooth arc motion: an origin position, a first dispensing position, and a second dispensing position. The following description is made of the origin position. The origin position is: and when the center of the oscillating station is superposed with the projection of the center of the corresponding second station hole and the center of the top plate on the horizontal plane, the oscillating plate is positioned.

When the dish body supporting plate is static relative to the main frame, the positions of the second station hole in the horizontal plane and the height direction are not changed, and therefore the projection position of the center of the second station hole in the horizontal plane is not changed. The top plate moves up and down in the height direction, but the projection of the top plate on the horizontal plane is unchanged, so the projection position of the center of the top plate on the horizontal plane is also unchanged. And the oscillation station moves in a smooth arc along with the oscillation plate in the horizontal plane, and the projection of the oscillation station on the horizontal plane also moves. Therefore, when the center of the oscillation station is defined to be coincident with the projection of the center of the corresponding second station hole and the center of the top plate on the horizontal plane, the position of the oscillation plate is the original position.

When the oscillating plate is positioned at the original point position, the top plate can move from bottom to top and sequentially passes through the through hole and the second station hole on the inner side of the oscillating station; similarly, the top plate can move from top to bottom and sequentially passes through the second station hole and the through hole on the inner side of the oscillating station.

In the present invention, the accuracy of the oscillation plate position information is very important. If the oscillating plate position information is not accurate enough, it may happen that: (1) the through hole on the inner side of the oscillating station is not aligned with the top plate, and the top plate cannot move upwards through the through hole; (2) the dish bottom of the oscillating station is not aligned with the material distribution pipeline, so that the culture medium cannot be accurately injected into the dish bottom.

Therefore, in this embodiment, the capsule oscillating mechanism further includes: and an absolute encoder 541, connected to the controller, for detecting a position of the oscillating plate in a smooth arc motion in a horizontal plane. The adoption absolutely is to the initial point position of encoder location oscillation plate, can make the dish bottom of separation accurately fall into the oscillation station, and the later stage roof can accurately pass the oscillation station upward movement simultaneously. Those skilled in the art will appreciate that other types of position encoders besides absolute encoders may be used to achieve this function.

With respect to the horizontal plane smooth arc motion, the following three points need to be explained:

1. the horizontal plane smooth arc motion is not necessarily circular motion, the motion track can also be a closed curve with coincident starting points and end points, such as an oval shape, an 8-shaped shape turned by 90 degrees and the like, on one hand, the culture medium can be uniformly stirred by oscillation, and on the other hand, the rotation rate and the motion corner curvature are not too high, so that the culture medium is prevented from being splashed out of the bottom of the dish.

2. The horizontal plane moves smoothly in an arc through three key positions: the original point position, the first split charging position and the second split charging position.

Two other key positions in the horizontal smooth arc motion are related to the oscillating plate: the first dispensing position and the second dispensing position will be described in detail below with reference to the material filling mechanism.

3. The above designs of the driving part and the driven part are only examples, and those skilled in the art can design the corresponding oscillating driving component according to the motion trajectory to be realized, and details are not repeated herein.

In this embodiment, increased ware body oscillation mechanism, realized the level and smooth arc motion at the bottom of the ware, realized that the material shakes evenly at the oscillation in the ware end, be favorable to reducing the bubble in the culture medium, impel the culture medium and wait to detect the material intensive mixing, provide the condition for the realization of plate pouring method function.

Seven, material filling mechanism

In this embodiment, because the oscillation plate drives the ware bottom that is located the oscillation station and makes the smooth arc motion of horizontal plane, consequently, for a plurality of ware bottoms filling culture medium of same partial shipment pipeline provide probably.

With continued reference to fig. 1A to 1D and fig. 6A to 6E, the material filling mechanism includes:

two one-to-two dispensing lines (411, 412);

and the filling pump 421 can be connected with the two sub-packaging pipelines at the same time and is used for filling materials into the dish bottom in the oscillating station through the sub-packaging pipelines.

In this embodiment, in order to ensure the dispensing accuracy, the filling pump 421 adopts a peristaltic pump.

The two-to-two split charging pipeline refers to a split charging pipeline which can be used for charging materials into the dish bottoms in two oscillation stations. The 'pair of T' at other positions in the text means that a separate charging pipeline can charge materials to the dish bottom in the T oscillating stations.

For the oscillating plate, the oscillating plate is provided with two split charging positions on the track of the horizontal plane smooth arc motion; when the smooth arc motion of oscillating plate horizontal plane reaches tth partial shipment position, the partial shipment pipeline is aimed at tth oscillation station, t ═ 1, 2. In actual movement, the subpackaging pipeline is aligned with the dish bottom on the tth vibration station.

It should be noted that the alignment here is not the alignment of the dispensing line with the center of the oscillation station, as long as the alignment is a part of the oscillation station, and when the dispensing line dispenses the culture medium, the culture medium can be accurately injected into the bottom of the dish.

Specifically, the method comprises the following steps:

1. referring to FIG. 6D, the oscillating plate is moved in a smooth arc along the horizontal plane to a first dispensing position, wherein the dispensing line 411 is aligned with the bottom of the dish at the oscillating station 511 and the dispensing line 412 is aligned with the bottom of the dish at the oscillating station 513. The filling pump 421 is controlled to fill the culture medium into the bottom of the dish in the shaking

stations

511 and 513.

2. Referring to FIG. 6E, the oscillating plate is moved in a smooth arc in a horizontal plane to a second dispensing position, wherein the dispensing line 411 is aligned with the bottom of the dish at the oscillating station 512 and the dispensing line 412 is aligned with the bottom of the dish at the oscillating station 514. And controlling a filling pump 421 to fill culture media into the bottoms of the dishes in the

oscillating stations

512 and 514.

For one of the dispensing lines 411, when the oscillating plate is in the first dispensing position, it is aligned with the capsule bottom on the oscillating station 511; the capsule bottom at the oscillation station 512 is aligned when the oscillation plate is in the second dispensing position.

The motion conditions of the vessel body oscillation mechanism and the material filling mechanism are described as follows:

(1) the initial position is that an oscillation station on an oscillation plate is concentric with a second station hole on a dish body supporting plate, and an absolute encoder detects that the position is an original point;

(2) the bottom of the dish falls to an oscillation station, and when the top plate is far away from the oscillation plate, the oscillation motor is driven to be electrified to drive the driving eccentric shaft to rotate. Because the motor axis and the two upright post axes form a three-point stable structure, the driving eccentric shaft rotates to drive the oscillating plate to do circumferential oscillation. When the oscillating plate swings to a first split charging position, the split charging pipeline injects materials into the bottoms of the two dishwares. Then the oscillating plate swings to a second sub-packaging position, and a sub-packaging pipeline injects materials into the bottoms of the other two dishes to realize sub-packaging operation.

In addition, when the plate pouring operation is not required, the oscillation plate is swung to the origin position. When the operation of a plate pouring method is needed, the oscillating plate continuously performs circumferential oscillation, so that a plurality of materials in the dish bottom are fully mixed. The mixing completion oscillation plate returns to the origin position. Waiting for the next empty dish and carrying out the next operation.

As understood by those skilled in the art, it is very practical to fill two dish bottoms with materials through one split charging pipeline. For example, in food testing, parallel samples are usually required, i.e., one is a simple culture medium, and the other is a food sample plus the culture medium. Food samples are analyzed by comparing two replicates for relevant parameters, such as: total number of colonies, number of coliforms, etc. If each partial shipment pipeline corresponds a dish bottom and annotates the culture medium, probably because the difference of pipeline leads to the difference of culture medium dress volume, composition.

In this embodiment, four plates are arranged in a row, and the same liquid to be detected is filled in the plates, two plates are used for counting the total number of bacterial colonies, and two plates are used for counting coliform groups. Two plates which are used as the total number of bacterial colonies use one culture medium and share the same split charging pipeline. Two plates which are used as coliform bacteria count use another culture medium and share the same split charging pipeline.

In this embodiment, the same culture medium is dispensed by the two dispensing pipelines, so that the same filling pump is adopted. In other embodiments of the present invention, multiple filling pumps may be used. The invention can be realized by adopting a filling pump which can fill two culture mediums at the same time.

Eighthly, weighing calibration and waste recovery mechanism

In this embodiment, because the oscillation plate drives the ware bottom that is located the oscillation station and is the smooth arc motion of horizontal plane, consequently, provide probably for waste liquid discharge and partial shipment volume calibration.

Fig. 7A, 7B, 7C, 7D, and 7E are a first angled perspective view, a second angled perspective view, a front view, a right side view, and a top view, respectively, of a weight calibration and scrap recycling mechanism in an embodiment of the present invention. With continuing reference to fig. 1A to 1D and fig. 7A to 7E, the weighing recovery mechanism 600 includes: a second fixing frame 611 fixed to the main frame; two bottom supports 621 respectively connected to the second fixing frame through corresponding weighing modules 631; two weighing modules 631 for metering the actual dispensed amount filled into the material container; the two weighing transmitters 641 are configured to transmit actual subpackage amount information obtained by the two weighing modules to the controller; two material containers 651 are stationary relative to the frame and have top surfaces below the position of the oscillation plate, each material container being aligned with a corresponding dispensing line.

The components of the weighing calibration and scrap recycling mechanism will be described in detail below.

In this embodiment, an additional material container is added. The material container has two functions, specifically:

1. taking the culture medium as an example of agar, in the operation process of the equipment, condensed agar may exist in the split charging pipeline, and even if the agar melts here, the experimental effect is also affected, so that the part of agar needs to be discharged, and the re-melted agar is discharged to the material container in this embodiment.

Through so setting up, overcome prior art, in the agar-agar gel that will remelt discharges the plate, causes the waste of plate.

2. Before the partial shipment begins, adjust the precision of partial shipment according to the actual partial shipment volume of partial shipment pipeline, be exactly weigh through weighing module, and then the controller is with its conversion volume, adjusts the partial shipment volume.

So set up, can realize accurate partial shipment volume control, overcome the defect that the partial shipment volume can not accurate control in the conventional art.

In order to ensure that the culture medium is not polluted and prevent the polluted material container from polluting the internal environment of the equipment, the material container adopts a disposable container, in particular a disposable plastic cup.

It should be noted that the controller may determine whether the discharge of the waste liquid or the weighing may be performed based on the position information of the oscillation plate acquired by the absolute encoder. Specifically, the method comprises the following steps: in the process of making horizontal plane smooth arc motion, the oscillating plate can move to a rear position, such as an origin position, far away from the first and second dispensing positions, and in this case, the culture medium in the dispensing pipeline can be injected into the material container.

The operation of the weighing calibration and waste recovery mechanism is described below:

(1) in the initial state, the material container is empty and placed on the bottom support.

(2) The peristaltic pump needs to be calibrated before dispensing. The split charging amount of the peristaltic pump is preset, and the oscillating plate is provided with no plate and is positioned at the original point position. The peristaltic pump pumps the material into the material container. When the peristaltic pump automatically stops, the controller obtains a weight value. And then automatically comparing the preset dispensing amount with the actual dispensing amount, calculating an error, and calibrating the flow of the peristaltic pump.

(3) In the subpackaging process, if solidified materials or useless materials appear in subpackaging pipelines, the materials are pumped into a waste recovery device. When the weight reaches the maximum capacity of the container, the control system gives an alarm and the container needs to be replaced.

In this embodiment, through weighing calibration and waste recovery mechanism, make the full automation of plate partial shipment, still do not need the manual operation waste material.

Nine, clean mechanism

In the embodiment, the time for contacting the culture medium with the outside is reduced as much as possible through the unique design of the bottom cover separation and the bottom cover combination of the flat dish, and in addition, the chance of the culture medium pollution is reduced to the maximum extent through the positive pressure design and the ultraviolet disinfection.

1. Positive pressure cleaning

In this embodiment, the outer periphery of the main frame is closed by the baffle plate, and a relatively closed space is formed inside the main frame. In the relatively closed space, except for the plate channel of the baffle plate below the empty dish stacking rack/finished dish stacking rack, the connection of the filling pump and the supply side of the external culture dish, the opening near the subpackaging pipeline for facilitating the observation of subpackaging conditions is closed.

Referring to fig. 1A to 1D and fig. 8A to 8D, in the present embodiment, the cleaning mechanism includes: and the air filter 810 is fixed on the baffle plate, and is used for filtering the outside air and introducing the filtered outside air into the relatively closed space, so that the relatively closed space is in a positive pressure state.

Referring to fig. 8A to 8D, the air filter 710 includes: a cylinder 711, the periphery of which is fixed to the baffle in the circumferential direction; a cylindrical filter element 712 fixed in the cylinder and forming an air flow path with the cylinder; a strainer 713 provided on the side of the cylindrical filter element facing the external space; the sealing plug 715 is plugged at one side of the cylindrical filter element far away from the external space; an annular baffle 714 for blocking a gap between the cylindrical filter element and the cylinder towards one side of the external space, wherein the annular baffle and the sealing plug realize the positioning of the cylindrical filter element in the cylinder; and a fan 716 fixed to a side of the cylindrical body remote from the external space, for sucking air into an air flow path between the cylindrical filter element and the cylindrical body.

The annular baffle and the sealing plug fix the cylindrical filter element, so that the cylindrical filter element and the cylinder are coaxial, and an air circulation path of the filter element and the cylinder is ensured to enable air to flow.

In the figure, the direction of the arrow is the direction of air entry. Referring to the drawings, in the present embodiment, a fan 716 sucks external air into an enclosed space. The process is that the dust with larger particles in the air is filtered by the filter screen 713, then the air enters the cylindrical filter element 712 for secondary filtration, and the air forms clean air after being filtered by the cylindrical filter element and enters the relatively closed space. Because the air drawn by the fan has a certain pressure, the air entering the relatively enclosed space is also under pressure. The air pressure in the relatively closed space is higher than that in the outside, so that the air in the relatively closed space continuously flows out to the outside. Ambient unclean air cannot enter the machine interior.

2. Ultraviolet disinfection

Referring to fig. 1A to fig. 1D and fig. 8, in the embodiment, the cleaning mechanism includes: and an ultraviolet lamp 821 provided at a position of the dispensing line. The ultraviolet lamp is arranged at the split charging position, and the sterilization function is realized. In the subpackaging process, even if a small amount of outside air enters the machine, the ultraviolet ray kills bacteria in the air, and subpackaged materials are always in a relatively sterile environment.

Ten, controller

The control flow of the medium dispensing apparatus according to the present embodiment will be described in detail below with reference to the hardware described above.

1. Calibration of dispensing amount in preparation phase

The controller executes the following control logic to perform calibration of the dispensing amount:

step A1, controlling a filling pump to fill materials according to a preset filling amount through a filling pipeline;

step A2, receiving actual subpackage amount information which is sent by a weighing module and is injected into a material container;

and step A3, calibrating the preset dispensing amount of the filling pump through the actual dispensing amount information.

2. Plate transport in the formal operation phase

Due to the action of gravity, the plate at the lowest layer in the empty dish stacking frame passes through the hole of the baffle and falls to the position of the first station on the dish body supporting plate.

The controller executes the following control logic to deliver the plate to the vibration station:

step B0, ensuring that the oscillating plate is at the origin position and the top plate is at the first height;

step B1, controlling the dish pushing assembly to push the dish body from the first station to the position of the second station hole, and then retracting the dish pushing assembly to the original position;

step B2, controlling the lifting driving assembly to drive the top plate to move downwards, keeping the dish cover at the position of the second station hole, and supporting the bottom of the dish by the top plate to move downwards;

step B3, at a second height, the dish bottom is left at the vibration station;

and step B4, controlling the top plate to continuously descend to the lower limit height.

3. Media split-charging at the formal run stage

The controller is used for executing the following control logic so as to fill culture medium into the four dish bottoms of the four vibration stations of the vibration plate:

step C1, controlling the horizontal plane of the oscillating plate to smoothly move in an arc manner to a first assembling position;

step C2, controlling the filling pump to fill materials into the dish bottom in the first oscillation station;

step C3, controlling the horizontal plane of the oscillating plate to smoothly move in an arc manner to a second assembly position;

and step C4, controlling the filling pump to fill the material into the dish bottom in the second oscillation station.

4. Medium mixing and shaking in the main operation stage

The controller executes the following control logic to achieve oscillatory mixing of the media in the four dish bottoms:

step D1, controlling the oscillating plate to do continuous horizontal plane smooth arc motion;

and D2, controlling the oscillating plate to stop moving, wherein the stop position is at the original position.

5. Returning the finished product ware in the formal operation stage

The controller executes the following control logic to realize the closing of the dish bottom and the dish cover, and the return of the plate in the finished dish stacking rack:

step E1, controlling the lifting driving assembly to drive the top plate to move upwards, supporting the dish bottom in the oscillation station at a second height, continuing to move upwards, and covering the dish bottom and a dish cover reserved in a second station hole at a first height;

step E2, controlling the lifting driving assembly to drive the top plate to continue to move upwards, pushing the plate to continue to move upwards by the top plate, ejecting the baffle of the finished plate stacking rack, pushing the plate into the finished plate stacking space, and at the moment, positioning the top plate at the upper limit position;

step E3, controlling the lifting driving assembly to drive the top plate to move downwards, and leaving the plate in the finished plate stacking rack;

and E4, controlling the lifting driving assembly to drive the top plate to move downwards, so that the top plate stops at the first height.

6. Waste discharge in the main operation stage

In the subpackaging process, if the subpackaging pipeline has solidified materials or useless materials, the controller is used for executing the following control logic and discharging the waste materials:

step F0, when the dispensing pipeline is judged to have waste materials, determining that the oscillating plate moves to a rear position far away from the first dispensing position and the second dispensing position, such as an origin position;

and F1, controlling the filling pump to discharge the waste materials to the material container corresponding to the subpackaging pipeline.

7. Positive pressure cleaning during formal operation

In the split charging process, the controller is used for executing the following control logic to realize positive pressure cleaning of the relative sealed space:

step G, opening the air filter 810 to introduce clean air into the relatively closed space to form positive pressure;

step H, turning on the ultraviolet lamp,

so far, the embodiments of the present invention have been described in detail with reference to the accompanying drawings.

It should be noted that for some implementations, if they are not critical to the invention and are well known to those of ordinary skill in the art, they have not been described in detail in the drawings or in the text of the specification, as they may be understood by reference to the relevant prior art.

In addition, the above definitions of the components are not limited to the specific structures and shapes mentioned in the embodiments, and those skilled in the art may easily modify or replace them, for example:

(1) the path of the oscillating plate may also take the form of a smooth arcuate movement of the horizontal plane other than that described in the embodiments.

(2) The translation driving component, the lifting driving component, the oscillation driving component and the like can also adopt other forms which can be thought of by the technical personnel in the field;

(3) in addition to the embodiment that one sub-packaging pipeline is used for loading materials on the plate with two oscillation stations, one sub-packaging pipeline can also be used for loading materials on the plate with only one oscillation station; the material can also be added on a plate with a split charging pipeline with three or four oscillation stations.

The present invention should be clearly recognized by those skilled in the art from the above description.

In conclusion, the material split charging equipment can transfer, separate and split charge a plurality of plates at the same time, so that the efficiency is improved; the dish cover and the dish bottom can be separated, so that the pollution probability is reduced; the dish body oscillation mechanism provides conditions for realizing the functions of the plate pouring method; the internal space of the equipment realizes positive pressure and ultraviolet sterilization, and the sterile environment in the split charging process is ensured; and a weighing calibration and waste recovery mechanism is added, so that the automatic process is completely realized.

It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention. Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present invention. And the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate contents of the embodiments of the present invention. Furthermore, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

In the description of the present invention, it is to be noted that the terms "connected" and "connected" are to be interpreted broadly, for example, as being fixed or detachable or integrally connected, unless expressly stated or limited otherwise; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms can be specifically understood by those of ordinary skill in the art.

The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. Ordinal numbers such as "first," "second," "third," "primary," "secondary," and arabic numerals, letters, etc., used in the specification and claims to modify a corresponding element or step are intended only to distinguish one element having a certain name from another element having the same name, and do not imply any ordinal number for that element nor order to one element from another.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A material split charging equipment, which is characterized by comprising:

a main frame;

dish body translation mechanism includes: the dish body supporting plate is horizontally fixed in the main frame, a first station is limited on the dish body supporting plate, N second station holes which penetrate through the dish body supporting plate and are used for the longitudinal lifting of the bottom of the dish are formed, and N is more than or equal to 1; the dish pushing assembly is movably arranged on the dish body supporting plate and used for pushing the dish body from the first station to the position of the second station hole;

dish body elevating system includes: the N top plates are horizontally arranged and are respectively concentric with the second station holes corresponding to the upper parts of the N top plates; the lifting driving assembly is used for driving the N top plates to move up and down;

dish body oscillating mechanism includes: the oscillation plate is horizontally arranged below the dish body supporting plate, and N oscillation stations are formed on the oscillation plate; the oscillation driving assembly is connected with the oscillation plate and used for driving the oscillation plate to do horizontal plane smooth arc motion through the origin position of the oscillation plate;

the second station hole, the top plate and the oscillation station are correspondingly arranged, and the origin position refers to the position of the oscillation plate when the center of the oscillation station is superposed with the projections of the centers of the corresponding second station hole and the top plate on the horizontal plane.

2. The material dispensing apparatus of claim 1, further comprising: a material filling mechanism; the material filling mechanism comprises:

at least one split charging pipeline with T being more than or equal to 2 and less than or equal to N;

the oscillating plate is provided with T subpackaging positions on the track of the horizontal plane smooth arc motion; when the horizontal plane of the oscillating plate moves smoothly in an arc manner to a tth oscillating station, the split charging pipeline is aligned to the tth oscillating station, and T is 1, 2, … … and T.

3. The material dispensing apparatus of claim 2 wherein T-2;

the material filling mechanism comprises: n/2 split charging pipelines one to two; the filling pump is connected with the N/2 one-to-two sub-packaging pipelines and is used for filling materials into the dish bottom in the oscillating station through the sub-packaging pipelines;

the dish body oscillating mechanism further comprises: the position encoder is connected with the controller and used for detecting the position of the horizontal plane smooth arc motion of the oscillating plate;

the material sub-packaging equipment still includes: a controller coupled to the oscillating drive assembly, the position encoder, and the priming pump for executing the following control logic:

controlling the horizontal plane of the oscillating plate to smoothly move in an arc manner to a first assembling position;

controlling the filling pump to fill materials into the dish bottom in the first oscillation station;

controlling the horizontal plane of the oscillating plate to smoothly move in an arc manner to a second sub-assembly position;

controlling the filling pump to fill materials into the dish bottom in the second oscillation station;

and controlling the oscillating plate to do continuous horizontal plane smooth arc motion.

4. The material dispensing apparatus of claim 3 wherein the oscillating drive assembly comprises: an active part; the active part includes:

a first fixing frame fixed to the main frame, forming a first installation plane along a horizontal direction;

a torque output member that outputs torque rotating on a horizontal plane, comprising: the oscillating motor is fixed on the first side of the first mounting plane, and a torque output shaft of the oscillating motor penetrates through the first mounting plane; a first gear installed at a second side of the first installation plane, the center of which is connected to a torque output shaft of the oscillation motor; a second gear installed on a second side of the first installation plane, having external teeth engaged with the external teeth of the first gear, and having a center connected to a detection shaft of the position encoder; the driving end of the driving eccentric shaft is connected to the second gear, and the axis of the driving end and the axis of the second gear are staggered;

the driving eccentric shaft is provided with a driving end which is rotatably connected to the torque output part, the axis of the driving end is not coincident with the axis of the torque output by the torque output part, and the free end of the driving eccentric shaft is rotatably connected to the oscillating plate;

the torque output part drives the driving eccentric shaft to rotate, and then drives the oscillating plate to do horizontal plane smooth arc motion.

5. The material dispensing apparatus of claim 4 wherein the oscillating drive assembly further comprises: two driven parts which are arranged in bilateral symmetry relative to the driving part; the driven portion includes:

the upright post is longitudinally fixed on the frame;

the bearing block is fixed at the top end of the upright post; one of an inner ring and an outer ring of the bearing is fixed on the bearing seat;

and the driven eccentric shaft is rotatably connected with the other one of the inner ring and the outer ring of the bearing at the driving end, the axis of the driving end is not coincident with the central axis of the bearing, and the free end of the driven eccentric shaft is rotatably connected with the oscillating plate.

6. The material dispensing apparatus of claim 3, further comprising:

n/2 material containers, which are kept relatively still with the frame, the top surfaces of the material containers are lower than the positions of the oscillating plates, and each material container is aligned with the corresponding dispensing pipeline above the material container.

7. The material dispensing apparatus of claim 6, wherein:

the controller is further configured to implement the following control logic: when the waste materials exist in the split charging pipeline, the filling pump is controlled to discharge the waste materials to the material container corresponding to the split charging pipeline.

8. The material dispensing apparatus of claim 6, wherein:

the material sub-packaging equipment still includes: the N/2 weighing modules are arranged below the corresponding material containers and used for metering the actual subpackaging amount of the materials filled into the material containers;

the controller is connected with the N/2 weighing modules and the filling pump and is used for executing the following control logics:

controlling the filling pump to fill materials according to a preset split charging amount through a split charging pipeline;

receiving actual subpackaging amount information which is sent by the weighing module and is injected into the material container;

and calibrating the preset dispensing amount of the filling pump through the actual dispensing amount information.

9. The material dispensing apparatus of claim 8, further comprising:

the second fixing frame is fixed on the main frame;

n/2 bottom supports are respectively connected to the second fixing frame through corresponding weighing modules and used for supporting corresponding material containers;

the weighing transmitter is used for transmitting the actual subpackaging amount information obtained by the N/2 weighing modules to the controller;

wherein, the material container is a disposable container.

10. The material dispensing apparatus of claim 3, wherein: the outer diameter of the second station hole is larger than that of the dish bottom and smaller than that of the dish cover.

11. The material dispensing equipment as claimed in claim 10 wherein a semi-circular groove is formed on the capsule body support plate at the periphery of the second station hole for engaging the capsule.

12. The material dispensing apparatus of claim 10, wherein:

a through hole for the top plate to move up and down is formed in the inner side of the oscillation station on the oscillation plate; in the longitudinal direction, the top plate has at least three successively lower height positions:

at a first height, the top plate is flush with the dish body supporting plate;

at a second height, the top plate is flush with the oscillation plate;

at a lower limit height, the top plate is lower than the oscillation plate;

the controller is connected with the lifting driving assembly and the dish pushing assembly and is used for executing the following control logics through the lifting driving assembly and the dish pushing assembly:

prior to the step of controlling the horizontal plane of the oscillating plate to smoothly move in an arc to the first dispensing position: ensuring that the oscillating plate is positioned at an origin position and the top plate is positioned at a first height; the dish pushing assembly is controlled to push the dish body from the first station to the position of the second station hole, and then the dish pushing assembly is retracted to the original position; controlling the lifting driving assembly to drive the top plate to move downwards, keeping the dish cover at the position of the second station hole, supporting the bottom of the dish to move downwards by the top plate, and keeping the bottom of the dish at the vibration station at the second height; controlling the top plate to continuously descend to the lower limit height;

after the step of controlling the oscillating plate to make a continuous horizontal smooth arcuate motion: controlling the oscillating plate to return to the original position; and controlling the lifting driving assembly to drive the top plate to move upwards, supporting the dish bottom in the oscillation station at a second height position and then continuing to move upwards, and covering the dish bottom and the dish cover left in the second station hole at a first height position.

13. The material dispensing apparatus of claim 1, further comprising:

the finished product ware stacking frame is arranged above the main frame and provides N stacks of finished product ware stacking spaces, a ware inlet below each stack of finished product ware stacking spaces is aligned with the corresponding second station hole on the ware body supporting plate, and a baffle which turns upwards is arranged on the ware inlet;

wherein, the dish entry in every finished product dish stacking space sets up the baffle of single upturning in its both sides, and N dish entry arranges in proper order on the long limit one side of finished product pile frame in the baffle of same one side, shares same trip shaft.

14. The material dispensing apparatus of claim 1, further comprising:

empty ware stacking rack, it provides N empty ware stacking space of piling up, and the dish mouth that goes out of every empty ware stacking space below aligns with the first station that corresponds on the dish body layer board.

15. The material dispensing apparatus as claimed in any one of claims 1 to 14, wherein the main frame is closed at its periphery by a baffle plate, forming a relatively closed space at its inner side;

the material sub-packaging equipment still includes: and the air filter is fixed on the baffle and used for filtering the outside air and then sucking the filtered outside air into the relatively closed space, so that the relatively closed space is in a positive pressure state relative to the outside atmospheric pressure.