CN113291815A

CN113291815A - Conveyance object distribution device, pneumatic transmission system, and method for transmitting sample container

Info

Publication number: CN113291815A
Application number: CN202110648679.5A
Authority: CN
Inventors: 董振海
Original assignee: Suzhou Xiaogancao Medical Electronics Co ltd
Current assignee: Suzhou Xiaogancao Medical Electronics Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-08-24

Abstract

The invention discloses a conveying object distribution device, a pneumatic sending system and a method for sending containers with samples, wherein the conveying object distribution device is connected with a plurality of sending assemblies and a cache conveying piece through a distribution mechanism, the distribution mechanism is provided with a blanking slideway for receiving conveying objects at the conveying position of the cache conveying piece and at least two material guide chutes, the lower end of each material guide chute is communicated with an inlet of one sending assembly, the distribution mechanism is also provided with a structure for identifying the length of the conveying objects at the blanking slideway, and the conveying objects at the blanking slideway are transferred to the material guide chutes corresponding to the conveying objects with the length through a transfer mechanism according to the identified length of the conveying objects, so that the conveying objects with different lengths enter different sending assemblies to realize classified sending, and the requirement of classified sending of the conveying objects with different lengths is effectively met.

Description

Conveyance object distribution device, pneumatic transmission system, and method for transmitting sample container

Technical Field

The present invention relates to the field of automatic conveying equipment, and particularly to a conveying object distribution device, a pneumatic conveying system, and a method for conveying a sample container.

Background

In various cases where a tube sample is required to be analyzed and detected in a hospital, a laboratory, or the like, a container such as a tube or a bottle containing a sample is required to be transported from a collection point to a corresponding analysis point for analysis, and therefore, the transport of the container such as the tube or the bottle is required to be performed by a transport system.

Application No. 202021337054.4 discloses a blood collection tube transfer and delivery machine which collects blood collection tubes and delivers them to a delivery unit, and supplies air into the delivery unit, thereby delivering the blood collection tubes in the delivery unit to a designated test department via a delivery rail.

The problem with this configuration is that: the above-mentioned structure cannot perform corresponding transportation when only one length of container is transported, and when the length of container is various and each length of container needs to be transported to one detection department, for example, when there are 2 lengths of blood collection tubes, a short blood collection tube needs to be transported to one detection department, and a long blood collection tube needs to be transported to another detection department.

Disclosure of Invention

The present invention has been made to solve the above-described problems occurring in the prior art, and an object of the present invention is to provide a conveyance target distribution device, a pneumatic transport system, and a method of transporting a tape sample container.

The purpose of the invention is realized by the following technical scheme:

carry object distributor, including the feed bin that the terminal surface has the import, material loading spare, buffer storage spare and send the subassembly, its characterized in that: the buffer storage part is connected with at least two sending components through a distribution mechanism, and the distribution mechanism comprises

The blanking slide way is obliquely arranged below the discharge hole of the buffer storage piece and used for receiving the conveying object output by the buffer storage piece, and the lower end of the blanking slide way extends to the outer side of the storage bin and the length of the blanking slide way extending out of the storage bin is not less than the length of the conveying object;

the identification device is at least used for determining the length of the conveying object at the blanking slide way;

the number of the material guide chutes is not less than 2, the material guide chutes are obliquely arranged, and the lower end of each material guide chute is communicated with a feeding hole of one sending assembly;

and the transfer mechanism is provided with a structure for transferring the conveying object at the blanking slide way to any one of the material guide chutes.

In a preferable mode, the discharging slideway comprises an inclined plane, the upper section of the inclined plane and side plates on two sides of the inclined plane form a material receiving groove which is right opposite to a discharging port of the buffer storage part, two sides of the lower section of the inclined plane are respectively connected with a material guiding chute, the top of one side, connected with the inclined plane, of the material guiding chute is not higher than the inclined plane, the transferring mechanism comprises a limiting part and a translation driving mechanism which at least drives the limiting part to translate from the position right above the material guiding chute on one side to the position right above the material guiding chute on the other side, and the limiting part encloses a limiting space which can limit a conveying object and leads an inlet to face the discharging end of the material receiving groove.

In a preferred mode, the limiting member includes a U-shaped main body and connecting arms connected to two side arms of the U-shaped main body, the two connecting arms are connected to a sliding member, and the sliding member is slidably disposed on the guide rail and connected to a mechanism for driving the sliding member to slide back and forth along the guide rail.

In a preferred mode, the identification device is two sensors which are arranged on the limiting member and combined to judge the length of the conveyed object in the limiting space.

In a preferable mode, the limiting member further defines an accommodating space communicated with a middle region of an inner end of the limiting space, the accommodating space is accessible for a large end of the object to be conveyed and inaccessible for the large end of the object to be conveyed, and the inclined surface or the limiting member is provided with a third sensor with an induction area facing the accommodating space.

In a preferable mode, a top surface of a side where the material guide chute is connected with the inclined surface is an inclined plane inclined from the inclined surface to the inside of the guide chute.

In a preferable mode, the blanking slide way is a sliding groove with a limiting part at the lower end opening, the transferring component comprises a vacuum adsorption group, and the vacuum adsorption group is connected with a mechanism for driving the vacuum adsorption group to lift and translate.

The conveying object distribution device comprises a sending assembly and a distribution mechanism, wherein the distribution mechanism comprises a blanking slideway, a material guide chute, a transfer mechanism and a sensor for determining whether a conveying object exists in the blanking slideway; the blanking slideway comprises an inclined plane with a fixed position, a material receiving groove is formed by the upper section of the inclined plane and side plates on two sides of the inclined plane, two sides of the lower section of the inclined plane are respectively connected with a material guide chute, the top of one side of the material guide chute, which is connected with the inclined plane, is not higher than the inclined plane, and the lower end of each material guide chute is communicated with a feeding hole of a sending assembly; the shifting mechanism comprises a limiting part arranged on the inclined plane in a clearance mode and a translation driving mechanism for driving the limiting part to translate at least from the position right above the material guide chute on one side to the position right above the material guide chute on the other side, and the limiting part surrounds a limiting space which can limit a conveying object and has an inlet facing the discharge end of the material receiving groove.

In a preferable mode, the two sensors are combined to judge the length of the conveying object at the blanking slide way.

The pneumatic transmission system comprises any one of the conveying object distribution devices, wherein the first connecting port of each transmission assembly is connected with an output pipeline, and the second connecting port of each transmission assembly is connected with an air supply pipeline.

In a preferred mode, the output pipeline at least comprises a lifting area pipeline and a smooth area pipeline connected with the lifting area pipeline, and the inner diameter of the smooth area pipeline is larger than that of the lifting area pipeline.

In a preferred mode, the first connection port of the sending assembly is connected with an output pipeline, the second connection port of the sending assembly is connected with an air supply pipeline, and the air supply flow or the air supply pressure of the air supply pipeline can be adjusted according to different pipe sections of the output pipeline.

In a preferable mode, the air supply pipeline comprises two air supply branches which are connected in parallel and can be independently switched on and off, each air supply branch is provided with a flow controller, and a sensor is arranged behind a connection area of the lifting area pipeline and the gentle area pipeline.

The invention also aims to provide a method for sending the sample container, which comprises the following steps:

s1, enabling the blood sampling tubes with different lengths to enter a discharging slide way, determining the lengths of the blood sampling tubes in the discharging slide way through a sensor and sending the lengths to a control system;

s2, the control system controls the transfer mechanism to transfer the blood collection tubes in the discharging slide ways to the material guide chutes corresponding to the length, and simultaneously controls the sending rotary block of the sending assembly connected with the material guide chutes to rotate to the sending channel communicated with the discharge hole of the material guide chutes, and the blood collection tubes enter the sending channel from the material guide chutes;

s3, the control system controls the sending rotary block to rotate to the two ends of the sending channel to be respectively communicated with the output pipeline and the air supply pipeline

And S4, the control system controls the air supply pipeline to introduce air into the sending channel to complete the conveying of the blood collection tube.

Preferably, in S3, the control system controls the motor to make the cap end of the blood collection tube, into which the sending rotary block rotates, in a downward state according to the position of the cap end of the blood collection tube at the feeding chute determined by the third sensor.

Preferably, in S4, after the blood collection tube enters the gentle region pipeline from the lifting region pipeline, one air supply branch is cut off.

The technical scheme of the invention has the advantages that:

the distributing mechanism is provided with a blanking slide way and at least two material guide slide ways for receiving conveying objects at the conveying position of the buffer conveying piece, the lower end of each material guide slide way is communicated with an inlet of one conveying component, the distributing mechanism is further provided with a structure for identifying the length of the conveying objects at the blanking slide way, and according to the identified length of the conveying objects, the conveying objects at the blanking slide way are transferred to the material guide slide ways corresponding to the conveying objects with the length through the transferring mechanism, so that the conveying objects with different lengths enter different conveying components to realize classified conveying, and the requirement of classified conveying of the conveying objects with different lengths is effectively met.

The distribution mechanism of this scheme adopts inclined plane and guide spout to link up the structure in its lower section both sides, can realize carrying moving of carrying the object on the inclined plane through a simple locating part and translation thereof, and simple structure easily realizes. And when the vacuum adsorption component is adopted for transferring the conveying objects, the classifiable types can be effectively expanded, so that the requirement of classifying and conveying the conveying objects with more lengths can be effectively met.

The length of carrying the object is judged to this scheme adoption sensor combination, simple structure, and easily realization, for image recognition's mode, software and hardware cost is lower, and does not need the image analysis process, receives external influence littleer, and data acquisition efficiency is faster, the accuracy is higher, has also reduced control system's data processing volume simultaneously.

Through the space shape design formed at the position limiting part, the positions of two ends of the conveying object can be effectively determined by combining the sensor, the structure is simple, the realization is easy, the cost of software and hardware is lower, the data acquisition efficiency is faster, the accuracy is higher compared with an image recognition mode, and meanwhile, the data processing capacity of a control system is also reduced.

The conveying system of the scheme can effectively avoid that the conveying speed of the conveying object at the pipeline in the gentle area cannot lead to sample damage too fast through the design of the pipe diameters of different sections of the output pipeline. The air supply flow is controlled by further combining the design of the air supply pipeline and conveying the object at different pipe sections of the conveying pipeline according to the determination of the sensor, so that the change of the conveying speed of the conveying object can be effectively ensured to be as small as possible, and the conveying speed of the object at the pipeline of the gentle area and the pipeline of the falling area can not be too high, so that the impact on the sample is reduced. Furthermore, the air leakage hole is formed in the pipeline of the falling area, so that air flow can be effectively leaked, and the problem that the speed is too high due to the fact that extra thrust is applied to a descending conveying object by the air flow is solved.

Set up the quantity that the sensor can calculate the transport object of output in the output pipeline on output pipeline, increased the tally function, and can verify according to the distribution data of distributing device, be favorable to carrying out data statistics and analysis, avoid appearing the condition of omitting.

Drawings

FIG. 1 is a first perspective view of the conveying object distribution device of the present invention (with the housing and the part of the baffle structure of the trough hidden in the drawing)

Fig. 2 is a second perspective view of the conveyed object distribution apparatus of the present invention (with the housing, a portion of the baffle of the bin, and the first mounting plate hidden);

FIG. 3 is a first perspective view of a dispensing mechanism and routing assembly of the transport object dispensing apparatus of the present invention (only one routing assembly motor is shown);

FIG. 4 is a perspective view of the block in the dispensing mechanism of the present invention;

FIG. 5 is an end view of FIG. 4;

FIG. 6 is a perspective view of a stop in the dispensing mechanism of the present invention;

FIG. 7 is a second perspective view of the dispensing mechanism and routing assembly of the transport object dispensing apparatus of the present invention (only one of the routing assembly motors is shown);

FIG. 8 is a schematic view of the connection of the routing assembly to the air supply line and output piping in the pneumatic routing system of the present invention;

FIG. 9 is a schematic view of an output conduit with a drop zone conduit connected to a routing assembly in a pneumatic routing system of the present invention;

FIG. 10 is a schematic diagram of a drop zone conduit of an output conduit to which a sending component is coupled having a deceleration buffer in an initiating sending system of the present invention;

FIG. 11 is a partial schematic view of a first implementation of the speed reduction buffer of FIG. 10;

FIG. 12 is a partial schematic view of a second implementation of the deceleration buffer of FIG. 10;

fig. 13 is a perspective view of the pneumatic conveying system of the present invention (only a partial structure of a part of the output duct and the air supply duct is shown in the drawing).

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. The embodiments are merely exemplary for applying the technical solutions of the present invention, and any technical solution formed by replacing or converting the equivalent thereof falls within the scope of the present invention claimed.

In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

The conveying object distribution device disclosed by the present invention is described below with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, the conveying object distribution device includes a bin 100 having an inlet at an end surface, a feeding member 200, a buffer storage member 300, and a sending assembly 400, and the specific structures of the bin 100, the feeding member 200, the buffer storage member 300, and the sending assembly 400 are the same as those of the chinese patent application No. 202021337054.4, No. CN212531516U, and named "a blood sampling tube transport and sending machine". Of course, besides the structures of the silo 100, the loading member 200, the buffer storage member 300 and the sending assembly 400, the present solution also has the structures of the housing, the feeding port and the like of the above patent.

Compared with the structure of the prior art, the invention has the following innovative improvements: as shown in fig. 1 and 2, the buffer storage 300 is connected to at least two sending assemblies 400 through a distribution mechanism 500, wherein the distribution mechanism 500 comprises

The blanking slide 510 is obliquely arranged below the discharge hole of the buffer storage piece 100 and used for receiving the conveying object A output by the buffer storage piece, and the lower end of the blanking slide extends to the outer side of the storage bin and the length of the blanking slide extending out of the storage bin is not less than the length of the conveying object A;

the identification device is at least used for determining the length of the conveying object A at the blanking slide way;

the number of the material guide chutes 520 is not less than 2, the material guide chutes are obliquely arranged, and the lower end of each material guide chute is communicated with the feeding hole of one sending assembly;

and a transfer mechanism 540 configured to transfer the conveying object a on the discharging chute to any one of the material guide chutes.

By adopting the structure, the output device can identify the length of the conveying objects A with different lengths entering the output device, select the conveying path of the conveying object A with each length according to the identification structure, and convey the conveying objects with the same length to the corresponding sending assembly 400, so that the conveying objects with different lengths can be sent to different positions after being classified, and the requirement of classified sending of containers with multiple lengths is effectively met.

The specific structure of the distribution mechanism 500 may be designed according to different needs, for example, when the conveying object has only two lengths, the following first structure may be adopted; when the length of the conveying object is more than 3, the second structure can be adopted, and the second structure can also be used for conveying the conveying objects with two lengths.

A first possible configuration of the dispensing mechanism 500 is as follows:

as shown in fig. 3 and 4, the feeding chute 510 includes an inclined surface 511, and a width of the inclined surface 511 is slightly larger than a maximum outer diameter of the conveying object, which is not necessary as long as the conveying object a can be supported. The inclined plane 511 is specifically a top surface of a block 512 fixed on the first fixing plate 7, a lower end of the block 512 extends to the feeding port of the sending assembly 400, an upper section 5111 (a portion located in the silo 100) of the inclined plane 511 is vertically engaged with two sides thereof and extends to a side plate 513 above the inclined plane 511 to form a receiving groove 514 located right below the discharging port of the buffer storage 300, a conveying object falling from the buffer storage 300 falls into the receiving groove 514 and slides downwards along the inclined plane 511 to a lower section 5112 thereof, the lower section 5112 is located outside the silo 100, and the length of the lower section 5112 is not less than the length of the conveying object.

As shown in fig. 3 and 4, two sides of the lower section 5112 of the inclined plane 511 are respectively connected to a material guiding chute 520, and the top of the side of the material guiding chute 520 connected to the inclined plane 511 is not higher than the inclined plane, so that the conveying object at the lower section 5112 can roll into the material guiding chute 520 at any side and slide along the material guiding chute 520 to the corresponding sending assembly 400.

As shown in fig. 5, in order to reduce the impact when the conveying object falls from the inclined plane 511 into the material guiding chutes 520, the top surfaces of the two material guiding chutes 520, which are connected to the inclined plane 511, are inclined planes 521 inclined from the inclined plane into the guiding chutes. Meanwhile, the two guide chutes 520 and the inclined surface 511 are integrally formed, i.e., they are both part of the block 512, thereby facilitating the production.

As shown in fig. 3 and 6, when the conveying object slides down to the lower section 5112, the shifting mechanism 540 restricts the translation at the lower section 5112 and towards one of the two diversion chutes 520. The transfer mechanism 540 includes a limiting member 541 and a translation driving mechanism 542 for driving the limiting member 541 to translate from a position right above the material guiding chute on one side to a position right above the material guiding chute on the other side, the limiting member 541 is disposed above the inclined surface 511 in a clearance manner, and the limiting member 541 and the inclined surface define a limiting space 5411 for limiting the conveying object and an inlet 5412 faces the discharging end of the material receiving chute 514.

Specifically, as shown in fig. 6, the limiting member 541 includes a U-shaped main body 5413 and a connecting arm 5415 connected to two side arms 5414 of the U-shaped main body 5413, a space enclosed by the U-shaped main body 5413 is the limiting space 5411, and when the limiting member 541 faces the lower section 5112 of the inclined plane 511, a conveying object sliding from the upper section 5111 to the lower section 5112 enters the limiting space 5411 and cannot roll along two sides of the inclined plane 511. When the limiting member 541 is driven by the translation driving mechanism to translate, the conveying object in the limiting space 5411 is driven to translate synchronously.

Of course, in other embodiments, the limiting member 541 may not be a U-shaped member, for example, it has only two side arms 5414, and a limiting protrusion is formed on at least one of the opposite surfaces of the two side arms 5414 to block the transportation object from sliding down the inclined surface.

As shown in fig. 6, in order to facilitate the conveying object to enter the limiting space 5411, the limiting space 5411 is divided into an inlet section 5416, a guide section 5417 and an inner section 5418, which are sequentially arranged from top to bottom, the width of the inlet section 5411 is greater than that of the inner section 5418, and the width of the guide section 5417 is linearly decreased from one end of the inlet section 5416 to the other end.

As shown in fig. 2 and 3, two connecting arms 5415 are used for connecting the translation driving mechanism 542, which are arranged at an obtuse angle with the side wall 5411 and extend vertically, and each connecting arm 5415 is integrally formed with the side arm 5411 connected thereto, but they may also be two independent parts, and are connected together by welding or screwing. In other embodiments, the connecting arm 5415 is not necessary, and the limiting member 541 may include only a U-shaped body.

As shown in fig. 3, the two connecting arms 5415 are connected to a sliding member 543, the sliding member 543 is slidably disposed on a guide rail 544 and connected to a mechanism for driving the sliding member to slide along the guide rail 544 in a reciprocating manner, the guide rail 544 is fixed on the first fixing plate 7 and located outside the storage bin 200, and two ends of the guide rail 544 extend to the outer sides of the two material guiding chutes 520, so that the limiting member 541 can move to the outer sides of the two material guiding chutes 520. The sliding piece 543 is connected to a movable nut of a lead screw 546 through a connecting piece 545, a screw of the lead screw 546 is rotatably disposed on the outer side surface of the first fixing plate 7 and is connected to a motor 547 for driving the lead screw to rotate, the motor 547 is also fixed on the outer side surface of the first fixing plate 7, and drives the screw to rotate, so as to drive the sliding piece 543 to slide along the guide rail 544, and the sliding piece 543 drives the limiting piece 541 to move. The motor 547, the screw 546, the connecting member, the slider 543, and the guide rail 544 constitute the translation drive mechanism 542.

Of course, the connecting member, the sliding member and the guide rail 544 may be omitted, and the connecting arm 5415 of the limiting member 541 is directly connected to the movable nut of the screw rod. Alternatively, in another embodiment, the lead screw and the motor may be replaced by other devices or mechanisms capable of generating linear movement, for example, a hydraulic cylinder or a combination of two air cylinders may be used to realize corresponding actions.

The length of the conveying object at the lower section can be identified in various feasible manners, for example, in one manner, the identifying device may be an image capturing device (not shown) mounted on the outer side of the first mounting plate 7, a lens of the image capturing device faces the lower section 5112 of the inclined plane 511, and the length of the conveying object is determined through image analysis, and a specific image analysis technology is a known technology and is not described herein again.

However, in this manner, a sensor is also required to determine whether a conveying object exists at the lower section 5112 of the inclined plane 511 to trigger the image capturing device to capture an image, and the cost of software and hardware for using the image capturing device is also higher.

In a more preferable mode, the length of the conveyed object is determined by a combined signal of two sensors (not shown in the figure), each of the sensors is used for detecting whether the conveyed object is at a corresponding position in the limit space, and the sensors can be various known proximity sensors, correlation sensors and the like. As shown in fig. 6, a first sensor (not shown) is disposed on a side arm 5414 of the limiting member 541 at a position close to an entrance of the limiting space 5411, a second sensor (not shown) is disposed on the side arm 5414 at a position close to an inner end of the limiting space 5411, a hole or a groove for mounting the two sensors is formed at a corresponding position of at least one side arm 5414, preferably two through holes 5410 are formed at both side arms 5414, and of course, specific mounting positions of the first sensor and the second sensor can be adaptively adjusted according to a length of a to-be-identified delivery object, and are not limited herein. Meanwhile, the first sensor and the second sensor may be mounted on the block 512 where the inclined surface 511 is located.

When the second sensor can sense the conveying object and the first sensor does not sense the conveying object, the conveying object in the limiting space is short; when the first sensor and the second sensor sense the conveying object, the conveying object in the limiting space is long.

Further, when the transport object is to be delivered, it is necessary to determine the direction of the transport object, and for example, when the blood collection tube is to be transported, it is necessary to transport the blood collection tube with the cap end facing downward.

In one mode, the positions of the two ends of the conveying object can be determined by acquiring pictures of the conveying object at the inclined plane through the image acquisition device. As shown in fig. 4, 6 and 7, in another preferred mode, the limiting member 541 further defines an accommodating space 5419 communicating with a middle area of an inner end of the limiting space 5411, a third sensor (not shown in the drawings) with a sensing area facing the accommodating space 5419 is disposed at a terminal end of the inclined surface 511, the third sensor is disposed in a mounting hole or a groove 5113 disposed at the terminal end of the inclined surface and facing the accommodating space, and a width of the accommodating space 5419 is greater than an outer diameter of a small end of the conveying object and smaller than an outer diameter of a large end thereof.

When the conveying object falls into the lower section of the inclined plane and is located in the limiting space 5411 in a state that the large end (the cap end of the blood collection tube) faces downward, the large end cannot enter the accommodating space 5419, and the third sensor cannot sense the conveying object. On the contrary, when the conveying object falls on the lower section of the inclined plane and is located in the limiting space 5411 in a state that the small end (the end of the blood collection tube opposite to the cap end) faces downward, the small end enters the accommodating space 5419, and the third sensor senses the conveying object, so that the positions of the two ends of the conveying object can be conveniently determined through the signal of the third sensor.

A second possible configuration of the dispensing mechanism is as follows:

the blanking slideway is a sliding chute with a lower end opening provided with a limiting part, for example, the sliding chute is a U-shaped groove formed by an inclined plane and side plates on two sides of the inclined plane, and the lower end of the U-shaped groove is provided with the limiting part so that a conveying object positioned in the U-shaped groove cannot slide out from the lower end of the U-shaped groove. The chute extends from the lower part of the discharge hole of the buffer storage part 300 to the outer side of the storage bin, the length of the chute extending to the outer side of the storage bin is not less than the length of the conveyed object, and the length of the chute from the limiting part to the storage bin is not less than the length of the conveyed object. In this case, the sensors for recognizing the length of the objects to be conveyed may be installed at both side plates of the U-shaped groove and the number thereof may be identical to the number of the material guide chutes 520, and the principle of the judgment is similar to that of the above judgment and is determined by determining the number of the objects to be conveyed.

At this time, the number of the material guide chutes 520 may be 2 or more, and preferably, the extending direction thereof is the same as the extending direction of the chutes, and the transferring assembly may include a vacuum suction group (not shown) connected to a mechanism for driving the lifting and translation thereof.

The vacuum adsorption group can adopt various known feasible structures, when a vacuum adsorption assembly is adopted, the vacuum adsorption assembly generally comprises suction heads and a vacuum pumping pipeline connected with the suction heads, the number of the suction heads can be set according to the length of a conveyed object, the shape of the lower end of each suction head can be set to be matched with the outer contour of the conveyed object, for example, when the conveyed object is a tubular object, the lower end of each suction head can be set to be a matched cambered surface.

The structure for driving the vacuum adsorption assembly to translate and lift can be obtained by arranging an air cylinder on the sliding piece of the translation driving mechanism 542, wherein an air cylinder shaft of the air cylinder is vertically arranged, and the air cylinder shaft is connected with the vacuum adsorption assembly. When the cylinder shaft of the cylinder extends out, the vacuum adsorption group can be driven to fall into the chute to suck or grab a conveying object in the chute, then when the cylinder shaft of the cylinder retracts, the translation driving mechanism drives the cylinder and the vacuum adsorption group to integrally translate and move to the conveying object on the vacuum adsorption group to be positioned right above the corresponding material guide chute, and then the cylinder drives the vacuum adsorption group to fall down to place the conveying object into the corresponding material guide chute to be conveyed.

Of course, the extending directions of the material guiding chutes 520 may also be random, that is, they are not arranged in parallel, at this time, the conveying object captured by the suction assembly can be placed in each material guiding chute 520 by adjusting the structure driving the vacuum suction assembly to move, for example, the structure driving the vacuum suction assembly to move can generate X, Y, Z three-axis movement and rotation, which is specifically known in the art and will not be described herein again.

Preferably, as shown in fig. 7, when there are two material guiding chutes 520, two sending rotary blocks 410 of the two sending assemblies 400 are located in one sending fixed seat 420, a large material feeding opening 421 is formed on the sending fixed seat 420, the lower ends of the two material guiding chutes extend into the material feeding opening 421 and respectively correspond to one sending rotary block 410, and the sending channel 411 of the sending rotary block 410 is rotatably communicated with the material feeding opening 421 so as to be communicated with the lower end of the material guiding chute 520. Two pairs of coaxial connecting ports are arranged on the transmitting fixed seat 420, each pair of connecting ports is matched with one transmitting rotary block 410 in position, a transmitting channel of the transmitting rotary block 410 can be rotated to be coaxial with the pair of connecting ports for transmitting, one of the connecting ports in each pair is arranged at the top and the other connecting port is arranged at the bottom, a pipe joint 450 is arranged at each connecting port, the specific structure of the pipe joint is known in the art, and the pipe joint is selected according to needs and is not limited herein. The transmitting holder 420 is fixed on the foot rest 430, and the foot rest 430 is disposed at both ends of the transmitting holder. The motors 440 connected to the two transmitting rotary blocks 410 are respectively located at both ends of the transmitting fixed base 420.

When the device works, the automatic operation of the whole device is controlled by a known feasible control system, which is not described herein.

Example 2

This example differs from example 1 in that: as shown in fig. 3, in this embodiment, the storage bin 100, the feeding member 200, the buffer storage member 300, and the like in embodiment 1 are omitted, and only at least two sending assemblies and the distribution mechanism 500 are provided, at this time, the conveying object can be directly placed on the discharging slideway, and at the same time, only one sensor can be provided at the discharging slideway in the distribution mechanism 500 to determine whether the conveying object exists at the lower section of the discharging slideway, and during operation, the sending beat of the whole device can be accelerated by forming two conveying channels without distinguishing the length of the conveying object, so as to improve the sending efficiency.

Of course, a more preferable configuration is one having both the length recognition and the direction recognition in embodiment 1.

Example 3

This embodiment further discloses a pneumatic delivery system for delivering various tubular or cylindrical or bottle-shaped articles, preferably for blood collection tubes, as shown in fig. 9, which includes the delivery object dispensing device of the above embodiment or the structure of only one delivery assembly 400 disclosed in application No. 202021337054.4.

Here, one of the sending modules 400 is exemplified, and one of the connection ports of the sending module 400 is connected to an output duct 600, and the other connection port is connected to an air supply duct 700, and the air supply duct 700 is used to supply air into the sending duct 411 of the sending rotary block 410 of the sending module 400, so that a supply object in the sending duct 411 enters the output duct 600 by an air flow and is supplied to a corresponding position.

As shown in fig. 8 and 13, the output pipeline 600 at least includes a lifting area pipeline 610 and a flat area pipeline 620 connected thereto, and the connection area of the lifting area pipeline 610 and the flat area pipeline 620 is arc-shaped to facilitate smooth passing of the conveying object. The lifting area pipe 610 may be vertically disposed, or may be obliquely disposed, and preferably vertically disposed, a lower end of the lifting area pipe is connected to a connection port at the top of the sending assembly 400, an upper end of the lifting area pipe vertically extends upward out of a housing of the conveying object distribution device, and a guide sleeve for the lifting area pipe 610 to pass through is disposed on the housing. The flattish area conduit is entirely horizontal, but of course, there may also be a certain height difference at different positions of the flattish area conduit, e.g. the flattish area conduit is a hose and may thus have a certain curvature.

Typically the inner diameter of the lift zone conduit 610 is the same as the flat zone conduit 620. However, when the conveying object is a tube body filled with samples such as blood samples or biological body fluids, the samples are abnormal due to the fact that the conveying speed is too high, the safety of the samples is affected, and subsequent effective detection and analysis are affected. Because the transported object requires less airflow thrust to move in the flatzone tubes 620, i.e., less airflow is required to transport the transported object in the flatzone tubes 620 than in the lift zone tubes. While the air flow supplied by the air supply line 700 is generally constant, the speed of the object to be transported in the flat zone pipe 620 is faster than that in the lift zone pipe, which greatly increases the risk of sample abnormality.

Therefore, in order to reduce the airflow thrust of the flatzone duct, the inner diameter of the flatzone duct 620 is made larger than the inner diameter of the lift-zone duct 610, so that the thrust generated by the airflow is reduced by increasing the sectional area of the flatzone duct 620 under the same airflow rate. Preferably, the inner diameter of the gentle region pipe 620 is larger than the maximum outer diameter of the conveying object by a value about 2 times as large as the inner diameter of the lifting region pipe 610. Specifically, the inner diameter of the lifting area pipe 610 is 1 to 2mm, more preferably 1 to 1.5mm, larger than the maximum outer diameter of the conveying object, and the inner diameter of the flattish area pipe 620 is 2 to 4mm, more preferably about 3mm, larger than the maximum outer diameter of the conveying object. In order to facilitate the connection of pipes with different pipe diameters, the flat area pipe 620 and the lifting area pipe 610 are connected by various known pipe connectors 660, and preferably, the pipe connectors 660 are located at the outlets of the arc-shaped turning sections.

As shown in fig. 9, the output duct 600 further includes a falling area duct 630 engaged with the flat area duct 620, and their engagement area is curved to facilitate passage of the conveying object. The inner diameter of the drop zone conduit 630 is comparable to the inner diameter of the flatzone conduit 620. The falling zone duct 630 may be inclined when there is no deployment environment restriction, but it is inconvenient for an actual building structure to adopt the inclined manner of the falling zone duct 630, and therefore, the falling zone duct 630 is preferably vertically arranged, in which case the transported object may freely fall under gravity.

As shown in fig. 9, a pressure relief mechanism is disposed at the falling area pipeline 630, the pressure relief mechanism is a set of air relief holes 631 formed in the falling area pipeline 630, the positions and the number of the air relief holes 631 can be designed as required, preferably, the pressure relief mechanism is disposed at a certain distance behind the junction area of the falling area pipeline 630 and the gentle area pipeline, and the aperture of the air relief hole is preferably 3-5mm, so that the air flow conveyed to the falling area pipeline 630 can be discharged from the air relief holes 631, thereby avoiding applying a thrust to the conveyed object continuously, and facilitating reducing the falling speed of the conveyed object.

At the pipeline 630 of the falling area, the conveying speed of the conveying object is very fast under the dual action of gravity and air flow, and the speed is higher as the conveying object approaches the discharge end, when the conveying object is a tube body filled with samples such as blood samples or biological body fluid, the abnormal condition of the samples can be caused when the conveying speed is too high, and meanwhile, the impact received by the samples is increased due to the too high output speed, so that the safety of the samples is influenced, and the subsequent effective detection and analysis are influenced.

As shown in fig. 10, in order to avoid the above problem, the falling zone duct 630 has a deceleration buffer area 632, a group of friction buffers 633 are spaced from top to bottom at the deceleration buffer area 632, and the inner cross-sectional area of each friction buffer 633 is smaller than the inner cross-sectional area of the other positions of the falling zone duct.

Since the friction buffers 633 are provided, when the conveying object a moves to the deceleration buffer 632, the conveying object a can rub against each friction buffer 633 to realize deceleration, and the speed of the conveying object at the falling area pipeline 620 is continuously reduced to a reasonable range by means of layer-by-layer friction.

The falling area pipe 630 may be inclined or vertical, as shown in fig. 10, preferably, the falling area pipe 630 is vertically arranged, the length of the falling area pipe 630 can be designed according to the conveying distance required in practice, and the conveyed object moves in a free-falling body in the falling area pipe 630. The lower end of the deceleration buffer area 632 is adjacent to the lower end 634 of the falling area pipe, the length of the deceleration buffer area is between 1 and 2m, preferably not less than 1.5m, and the distance L between adjacent friction buffers 633 is between 3 and 5 cm.

The conveying object freely falls and continuously accelerates at the falling area pipeline 630, when the conveying object falls into the deceleration buffer area 632, the conveying object starts to be in friction deceleration after contacting with the first friction buffer portion 633, the conveying object A continuously contacts with the friction buffer portions 633 along with the conveying object A, so that the speed is continuously reduced, and the lower end of the deceleration buffer area 632 is arranged at the lower end of the falling area pipeline 630, so that the falling speed of the conveying object is basically reduced to 0 when the conveying object is output from the falling area pipeline 630, at the moment, the conveying object can fall into the material receiving container under the action of the gravity of the conveying object, and the problem that the conveying object is overspeed in the falling area pipeline and the excessive impact is received when the conveying object falls into the material receiving container are greatly avoided.

There are many possible ways to form the friction cushioning part 633, and in one possible way, as shown in fig. 11, at least the deceleration cushioning area 632 in the falling area pipeline 630 is a section of hose, the friction cushioning part 633 is formed by a set of claspers 635 sleeved on the outer periphery of the hose, and the inner diameter Φ 1 of the hose in the clasper 635 holding area is smaller than the inner diameter Φ 2 of other positions of the hose; the hose 635 may be any of various flexible plastics known in the art, preferably silicone rubber; the clasper 635 may be any of various known elastic bands or bands with a certain width, or a metal hoop or a plastic hoop.

In another mode, instead of deforming the hose by the clincher 635 to change the inner diameter thereof to obtain the friction cushioning 633, as shown in fig. 12, the protrusion 636 formed at the inner wall of the drop zone conduit 630 in this embodiment may be a circular protrusion or a semicircular protrusion, the protrusion 636 may be a circular protrusion or a semicircular protrusion, and the upper end region of the protrusion 636 is a slope, in which case, the conduit corresponding to the deceleration cushioning 632 may be injection-molded.

As shown in fig. 8 and fig. 9, when there are a plurality of sending modules 400, they may share one set of air supply pipeline 700, or each sending module 400 may be connected to one set of air supply pipeline 700, and designed according to different requirements. The air supply line 700 may have various known structures, and is generally assembled by various valve bodies such as an air flow generating device (a blower, an air compressor, an air pump, etc.), a pipe, a pressure release valve (not shown), a flow control valve, an electromagnetic valve, etc., a pressure gauge (not shown), etc.

The innovation of the scheme is that: the air supply flow of the air supply pipeline 700 can be adjusted according to the conveying object in different sections of the output pipeline 600.

As shown in fig. 8-13, a set of air supply lines 700 is provided for a sending module, and the air supply lines 700 include air flow generating devices 710, and the air flow generating devices 710 are disposed in the housing of the delivery object distribution device and below the sending holders 420 of the sending module 400. The output end of the air flow generating device 710 is connected to an access pipe 720, the access pipe 720 is connected to two air supply branches 740 which are connected in parallel and can be independently switched on and off through a tee joint 730, each air supply branch 740 includes a pipe 741, the pipe 741 is provided with at least a flow controller 742 and an electromagnetic valve 743 in a front-back position relationship, the electromagnetic valve 743 is fixed in the housing of the delivery object distribution device, the flow controller 742 is preferably a throttle valve, the electromagnetic valve 743 is connected to a control system (not shown in the figure), the output end of the pipe 741 is connected to a confluence pipe 760 through the tee joint 750, and the confluence pipe 760 is connected to a connection port at the bottom of the sending component 400. The gas supply pipeline 700 further includes a structure for detecting and controlling the pressure in the pipeline, for example, a pressure release valve and a pressure gauge are provided at the access pipeline 720, or a pressure release valve located in front of the solenoid valve may be provided at each gas supply branch, and the corresponding technology is known and is not described herein.

As shown in fig. 8 to 10, a first off trigger sensor 640 for determining that the conveyed object completely enters the flatzone pipe 620 is disposed behind the junction area of the lifting zone pipe 610 and the flatzone pipe 620. Furthermore, a second off-trigger sensor 650 for determining the entry of the conveying object into the falling area pipe 630 is arranged at the joint position of the flatzone pipe 620 and the falling area pipe 630, and the second off-trigger sensor 650 is connected with a control system.

When beginning to send the interior air feed of passageway to a sending module, control system makes for two parallelly connected of this sending module air feed the solenoid valve 733 of air feed branch 740 opens simultaneously to the great air flow of output makes the transport object in the sending module enters into in the promotion district pipeline 610, works as the transport object passes through behind the first shutoff trigger sensor 640, confirm that the transport object enters into the gentle district pipeline 620 completely, at this moment, control system control one the solenoid valve of air feed branch 740 is closed, thereby reduces air feed flow to half to reduce the fluid thrust of gentle district pipeline effectively, avoid carrying the speed of object in the gentle district pipeline too big. At this time, a relief valve (not shown) in the air supply line can vent excess air flow in the duct to maintain a stable air pressure in the duct. After the conveyed object passes through the second off trigger sensor 650, the control system controls the air supply pipeline 700 to stop supplying air to the output pipeline 600. Specifically, when a plurality of sending assemblies share one set of air supply pipeline 700, the control system controls two electromagnetic valves of two air supply branches 740 connected to the output pipeline 600 where the conveying object is located to be turned off; when the sending module has a set of independent air supply lines, the air flow generating device 710 may be controlled to stop, or two solenoid valves of two air supply branches may be turned off.

Of course, in other embodiments, the two parallel gas supply branches 740 may not be provided for the gas supply pipeline of each sending module, but the gas supply flow rate is adjusted by a flow controller, and the specific structure of the flow controller is known in the art and will not be described herein. When the device works, when a conveying object is positioned in a lifting area pipeline, the flow controller maintains large flow, when the conveying object enters a gentle area pipeline, the flow of the flow controller is reduced to a preset value, and when the conveying object enters a falling area pipeline, the air supply pipeline stops supplying air (the air flow generating device stops and/or a valve for controlling the on-off of the pipeline is closed).

Example 4

The embodiment further discloses a method for sending blood collection tubes by using the pneumatic sending system, which comprises the following steps:

s1, enabling the blood sampling tubes with different lengths to enter a discharging slide way, determining the lengths of the blood sampling tubes in the discharging slide way through a sensor and sending the lengths to a control system; when only the distribution mechanism and the sending assembly are available, the blood sampling tube is directly placed on the blanking slide way. When the storage bin 100, the feeding part 200 and the buffer storage part 300 are provided, the blood collection tubes are put into the storage bin 100 through the inlet of the shell, and the blood collection tubes are conveyed into the discharging slide way through the feeding part 200 and the buffer storage part 300.

S2, the blood sampling tube entering the discharging slide way slides to the lower section along the inclined plane and is limited on the inclined plane by the limiting piece of the transfer mechanism 540, at the moment, the control system judges that the length of the blood sampling tube is controlled by the motor to drive the limiting piece to move horizontally according to the combined signal of the two sensors on the limiting piece, the blood sampling tube in the discharging slide way is transferred to the material guide slide way corresponding to the length of the blood sampling tube, meanwhile, the control system controls the sending channel of the sending component connected with the material guide slide way, the sending channel of the sending component, to which the sending rotating block rotates, to be communicated with the discharge hole of the material guide slide way, and the blood sampling tube enters the sending channel from the material guide slide way.

S3, the control system controls the sending rotary block to rotate to the two ends of the sending channel to be respectively communicated with an output pipeline and an air supply pipeline; then, the control system controls the motor 440 to rotate the sending rotary block until the cap end of the blood collection tube is facing downward according to the orientation of the cap end of the blood collection tube determined by the third sensor on the inclined surface.

And S4, controlling the air supply pipeline 700 to introduce air into the sending channel by the control system to complete the conveying of the blood collection tubes. The specific air supply process is operated according to the process of supplying air from the air supply pipeline to one sending assembly, and is not described herein.

The invention has various embodiments, and all technical solutions formed by adopting equivalent transformation or equivalent transformation are within the protection scope of the invention.

Claims

1. Conveying object distributor, including feed bin, material loading spare, buffer storage spare and the sending subassembly that has the import, its characterized in that: the buffer storage part is connected with at least two sending components through a distribution mechanism, and the distribution mechanism comprises

2. The transport object distribution device according to claim 1, wherein: the blanking slideway comprises an inclined plane, the upper section of the inclined plane and side plates on two sides of the inclined plane form a material receiving groove which is right opposite to a discharge port of the buffer storage part, two sides of the lower section of the inclined plane are respectively connected with a material guide sliding groove, the top of one side, connected with the inclined plane, of the material guide sliding groove is not higher than the inclined plane, the transfer mechanism comprises a limiting part and a translation driving mechanism which at least drives the limiting part to translate from the position right above the material guide sliding groove on one side to the position right above the material guide sliding groove on the other side, and the limiting part is enclosed to form a limiting space which can limit a conveying object and leads the inlet to face the discharge end of the material receiving groove.

3. The transport object distribution device according to claim 2, wherein: the limiting part comprises a U-shaped main body and connecting arms connected with two side arms of the U-shaped main body, the two connecting arms are connected to a sliding part, and the sliding part is slidably arranged on the guide rail and connected with and drives the mechanism to slide back and forth along the guide rail.

4. The transport object distribution device according to claim 2, wherein: the identification device is a sensor which is arranged on the limiting part and is used for judging the length of the conveyed object in the limiting space in a combined manner.

5. The transport object distribution device according to claim 2, wherein: the limiting part further defines an accommodating space communicated with the middle area at the inner end of the limiting space, the accommodating space can be used for allowing the large end of the conveyed object to enter and not allowing the large end of the conveyed object to enter, and the inclined plane or the limiting part is provided with a third sensor with an induction area facing the accommodating space.

6. The transport object distribution device according to claim 2, wherein: the top surface of one side, connected with the inclined surface, of the material guide sliding groove is an inclined plane which inclines from the inclined surface to the inside of the guide sliding groove.

7. The transport object distribution device according to claim 1, wherein: the unloading slide is the spout that a lower end opening has spacing portion, it includes the vacuum adsorption group to move the subassembly, its mechanism that goes up and down and the translation of drive is connected to the vacuum adsorption group.

8. Conveying object distribution device, including sending the subassembly, its characterized in that: the automatic feeding device comprises a feeding slide way, a material guiding slide way, a transferring mechanism and a sensor for determining whether a conveying object exists in the feeding slide way; the blanking slideway comprises an inclined plane with a fixed position, a material receiving groove is formed by the upper section of the inclined plane and side plates on two sides of the inclined plane, two sides of the lower section of the inclined plane are respectively connected with a material guide chute, the top of one side of the material guide chute, which is connected with the inclined plane, is not higher than the inclined plane, and the lower end of each material guide chute is communicated with a feeding hole of a sending assembly; the shifting mechanism comprises a limiting part arranged on the inclined plane in a clearance mode and a translation driving mechanism for driving the limiting part to translate at least from the position right above the material guide chute on one side to the position right above the material guide chute on the other side, and the limiting part surrounds a limiting space which can limit a conveying object and has an inlet facing the discharge end of the material receiving groove.

9. The transport object distribution device according to claim 8, wherein: the two sensors are combined to judge the length of the conveying object at the blanking slide way.

10. Pneumatic transmission system, its characterized in that: the delivery object dispensing apparatus of any one of claims 1-9, wherein the first port of each of the dispensing modules is connected to an output line and the second port of each of the dispensing modules is connected to an air supply line.

11. The pneumatic routing system of claim 10, wherein: the output pipeline at least comprises a lifting area pipeline and a smooth area pipeline connected with the lifting area pipeline, and the inner diameter of the smooth area pipeline is larger than that of the lifting area pipeline.

12. The pneumatic routing system of claim 10, wherein: the air supply flow or the air supply pressure of the air supply pipeline can be adjusted according to the conveying object in different pipe sections of the output pipeline.

13. The pneumatic routing system of claim 12, wherein: the air supply pipeline comprises two air supply branches which are connected in parallel and can be independently switched on and off, each air supply branch is provided with a flow controller, and a sensor is arranged behind a connection area of the lifting area pipeline and the gentle area pipeline.

14. A method for sending a sample container, comprising: the method comprises the following steps:

15. The method for sending a sample container according to claim 14, wherein: in S3, the control system controls the motor to make the cap end of the blood collection tube, into which the sending rotary block rotates, face downward according to the position of the cap end of the blood collection tube at the feeding chute determined by the third sensor.

16. The method for sending a sample container according to claim 14, wherein: in S4, after the blood collection tube enters the gentle region tube from the lifting region tube, one air supply branch is turned off.