CN113307034A

CN113307034A - Article delivery system and output pipeline thereof

Info

Publication number: CN113307034A
Application number: CN202110648668.7A
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: 2021-08-27

Abstract

The invention discloses an article sending system and an output pipeline thereof, wherein the article sending system comprises a sending assembly, the sending assembly is connected with an air supply pipeline and the output pipeline, the output pipeline at least comprises a gentle area pipeline and a falling area pipeline, the lower end of the falling area pipeline is a discharge end, the falling area pipeline is provided with a deceleration buffer area, a group of friction buffer parts are distributed at the deceleration buffer area from top to bottom at intervals, and the inner cross-sectional area of each friction buffer part is smaller than the inner cross-sectional area of other positions of the falling area pipeline. This scheme is through carrying object and a plurality of friction buffer part continuous contact and constantly slowing down, and the mode through layer upon layer friction makes the falling speed of carrying the object reduce to lower scope, and layer upon layer friction can effectively reduce the impact of speed reduction process, has also avoided the blood sample abnormal problem that the falling speed leads to the fact at the excessive speed, and the transport object speed when further can reduce the output effectively avoids falling into and connects the material container and causes too big impact, has guaranteed the safety of container and sample.

Description

Article delivery system and output pipeline thereof

Technical Field

The invention relates to the technical field of pneumatic conveying, in particular to an article sending system and an output pipeline thereof.

Background

When the blood sampling tube is conveyed, a feasible mode is pneumatic conveying, the blood sampling tube is firstly placed into a sending channel during pneumatic conveying, and then the blood sampling tube is conveyed to a corresponding detection department through an air supply pipeline and an output pipeline which are communicated with the sending channel.

Conventional output pipeline is including the lifting area pipeline, the gentle district pipeline and the whereabouts district pipeline that communicate in proper order, and the whereabouts district pipeline is vertical setting usually, and the blood sampling pipe is the free fall in the pipeline of the district that falls, and when the falling speed of blood sampling pipe in the pipeline of the district that falls reaches certain threshold value, the blood sample in the blood sampling pipe can take place the xenogenesis, can produce the hemolysis when blood sampling pipe conveying speed is greater than 6m/s for example.

Meanwhile, when the blood sampling tube is output from the pipeline of the falling area, because the output speed is high, when the blood sampling tube enters the material receiving container after being output, the blood sampling tube is in contact with the material receiving container and then is violently collided, so that the blood sampling tube is easily damaged, and secondly, the abnormal probability of a sample in the blood sampling tube is increased due to great impact.

Disclosure of Invention

The present invention is directed to solving the above problems in the prior art, and provides an article delivery system and an output pipeline thereof.

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

article sending system, including sending the subassembly, a connector connection air supply line of sending the subassembly, its another connector connection output pipeline, output pipeline includes gentle district pipeline and whereabouts district pipeline at least, the lower extreme of whereabouts district pipeline is the discharge end, the pipeline of whereabouts district has a speed reduction buffer, speed reduction buffer department from top to bottom interval distribution has a set of friction buffering portion, every the interior cross sectional area of friction buffering portion is less than the interior cross sectional area of other positions of whereabouts district pipeline.

In a preferred embodiment, the length of the deceleration buffer is between 1 and 2 m.

In a preferred embodiment, the drop zone conduit is vertically disposed, and the lower end of the deceleration buffer zone is immediately adjacent to the lower end of the drop zone conduit.

In a preferred embodiment, the spacing between adjacent friction cushioning portions is between 3 and 5 cm.

In a preferred embodiment, the deceleration buffer area is a hose, the friction buffer part is formed by a group of claspers sleeved on the periphery of the hose, and the inner diameter of the hose in the clasping area of the claspers is smaller than the inner diameter of the hose at other positions;

or the friction buffering part is a protrusion formed at an inner wall of the drop zone duct.

In a preferred embodiment, the descent zone duct is formed with a set of air-escape holes above the deceleration buffer zone.

In a preferred embodiment, the diameter of the air leakage hole is 3-5mm, and the number of the air leakage holes is 10-20.

In a preferred embodiment, the front end of the gentle region pipeline is further communicated with a lifting region pipeline, the inner diameter of the gentle region pipeline is larger than that of the lifting region pipeline, and the inner diameter of the non-friction buffer part of the falling region pipeline is equivalent to that of the gentle region pipeline.

In a preferred embodiment, the supply air flow rate of the air supply line when the object is in the gentle region pipe is smaller than the supply air flow rate of the air supply line when the object is in the lift region pipe.

In a preferred embodiment, the number of the sending modules is at least 2, and a plurality of sending modules are connected with the same air supply pipeline.

In a preferred embodiment, the feeding hole of the sending assembly is connected with a feeding mechanism.

In a preferred embodiment, the number of the sending assemblies is at least 2, the feeding holes of the sending assemblies are connected with the same feeding mechanism, and the feeding mechanism at least comprises

The blanking slideway is obliquely arranged and fixed in position;

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 beside the discharging slide way, 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.

Article sending system's output pipeline, including the promotion district pipeline, the gentle district pipeline and the whereabouts district pipeline that communicate in proper order, its characterized in that: the lower extreme of whereabouts district pipeline is the discharge end, the whereabouts district pipeline has a speed reduction buffer, speed reduction buffer department from top to bottom interval distribution has a set of friction buffering portion, every the interior cross sectional area of friction buffering portion is less than the interior cross sectional area of other positions of whereabouts district pipeline.

In a preferred embodiment, the inner diameter of the lifting zone pipe is smaller than the inner diameter of the flattish zone pipe, and the inner diameter of the non-friction buffer portion of the falling zone pipe is equivalent to the inner diameter of the flattish zone pipe.

In a preferred embodiment, the pipeline at least comprises a vertically arranged falling area pipeline, wherein the falling area pipeline is provided with a deceleration buffer area, a group of friction buffer parts are distributed at the deceleration buffer area from top to bottom at intervals, and the inner section area of each friction buffer part is smaller than the inner section area of other positions of the falling area pipeline.

The technical scheme of the invention has the advantages that:

the pneumatic conveying system of the scheme is characterized in that a deceleration buffer area is arranged at the falling area pipeline of the output pipeline, when an output conveying object falls to the deceleration buffer area, the conveying object is in contact friction with each friction buffer part and achieves certain deceleration, the deceleration is continuously achieved along with the continuous contact of the conveying object with the friction buffer parts, the falling speed of the conveying object is reduced to a lower range through a layer-by-layer friction mode, the impact of the deceleration process can be effectively reduced, the abnormal problem of blood samples caused by the fact that the falling speed is too fast is effectively avoided, the speed of the conveying object during output can be further effectively reduced, the phenomenon that the conveying object falls into a material receiving container to cause too large impact is avoided, and the safety of the container and the samples is guaranteed.

Through the design to the length of speed reduction buffer zone, position and the interval of friction buffering portion, fully guarantee to carry the speed of object when carrying the lower extreme region and can be in reasonable within range to when can making the output pipeline, the speed of carrying the object is 0 basically, and the impact when furthest reducing the output guarantees the safety of container and sample.

The friction buffering part can be processed in multiple modes, and is easy to realize and convenient to popularize and apply.

The air leakage hole positioned above the speed reduction buffer area is formed in the pipeline of the falling area, so that air flow can be effectively leaked, and the problem that the speed is overlarge due to the fact that extra thrust is applied to a descending conveying object by the air flow is solved.

This scheme makes the internal diameter of gentle district's pipeline be greater than the internal diameter of lifting means pipeline, consequently when the same air supply volume, through the sectional area that increases the gentle district pipeline, can reduce the thrust that the air current was applyed to the heparin tube effectively to avoid the heparin tube can not lead to the sample to destroy at the transport speed of gentle district pipeline too fast, effectively guaranteed the security of sample.

The design of combining the air supply pipeline, the air supply flow is controlled according to different pipe sections of the conveying pipeline for conveying the object by 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 in 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.

According to the scheme, the plurality of sending assemblies can be classified and conveyed according to different lengths of conveyed objects through one feeding mechanism, and the flexibility and the applicability of application can be effectively improved.

Drawings

FIG. 1 is a schematic view of an article dispensing system of the present invention (with the motor of the dispensing assembly hidden and the segments of the output conduit shown only partially);

FIG. 2 is a partial schematic view of one implementation of a deceleration buffer of the present invention;

FIG. 3 is a partial schematic view of another implementation of a deceleration buffer of the present invention;

FIG. 4 is a perspective view of the article dispensing system of the present invention (only a portion of the output duct and the air supply duct are shown in the figure);

FIG. 5 is a first perspective view of the feed mechanism and dispensing assembly of the present invention (shown with the housing and trough partially hidden)

FIG. 6 is a second perspective view of the feed mechanism and routing assembly of the present invention (with the housing, a portion of the baffle of the silo, and the first mounting plate hidden);

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

FIG. 8 is a perspective view of the block in the dispensing mechanism of the present invention;

FIG. 9 is an end view of FIG. 8;

FIG. 10 is a perspective view of a stop in the dispensing mechanism of the present invention;

figure 11 is a second perspective view of the dispensing mechanism and dispensing assembly of the present invention (only one motor of the dispensing assembly is shown).

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 article delivery system disclosed in the present invention is described below with reference to the accompanying drawings, and is used for delivering various tubular or cylindrical or bottle-shaped articles, for example, blood sampling tubes filled with blood samples, as shown in fig. 1, the article delivery system includes a delivery module 400, an output pipeline 600 and an air supply pipeline 700, the delivery module 400 is used for temporarily storing a delivery object a and is connected to the output pipeline 600 and the air supply pipeline 700, the output pipeline 600 is used as a moving channel of the delivery object to deliver the delivery object to a target position, and the air supply pipeline 700 is used for supplying air to the delivery object in the delivery module 400 to enable the delivery object to move to the target position along the output pipeline 600.

The sending module 400 can be of any feasible known structure, and in a preferred mode, as shown in fig. 1, it can be of the structure disclosed in application No. 202021337054.4, and includes a fixed seat 420, the fixed seat 420 has a cylindrical inner cavity, a feed port 421 and two coaxial connection ports are formed on the circumferential plate of the fixed seat 420, each of the connection ports is provided with a pipe joint 450, one of the pipe joints 450 is connected with the output pipeline 600, and the other pipe joint 450 is connected with the air supply pipeline 700.

As shown in fig. 1, a cylindrical transmitting rotary block 410 is coaxially and rotatably disposed in the cylindrical inner cavity of the fixed base 420, the circumferential surface of the transmitting rotary block 410 is attached to the inner wall of the fixed base 420, the transmitting rotary block 410 is connected to a motor 440 for driving the transmitting rotary block to rotate around the axis thereof, a transmitting channel 411 is formed on the transmitting rotary block 410, and the transmitting channel 411 can be driven by the motor 440 to rotate to communicate with the two connecting ports and face the feed port 421. When one end of the sending channel 411 is aligned with the feeding hole 421, the conveying object can be put into the sending channel; when both ends of the sending channel 411 are respectively communicated with one of the connection ports, air can be supplied into the sending channel 411 through the air supply pipeline 700, so that the conveying object in the sending channel 411 can be conveyed to a corresponding position through the output pipeline 600.

As shown in fig. 1, the output pipeline 600 includes a flat area pipeline 620 and a falling area pipeline 630 connected in sequence, the connection area of the flat area pipeline 620 and the falling area pipeline 630 is arc-shaped so as to facilitate the passing of the conveying object, the lower end of the falling area pipeline 630 is a discharging end, the flat area pipeline 620 and the falling area pipeline 630 may be a complete pipeline respectively, or each of them may be an assembly of multiple pipelines.

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. 1, 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 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. 1, 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 zone is closely adjacent to the lower end 634 of the falling zone pipeline, the length of the deceleration buffer zone is between 1 and 2m, preferably not less than 1.5m, and the distance L between adjacent friction buffer parts 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. 2, 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 buffer 633, as shown in fig. 3, 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 buffer 632 may be injection-molded.

Further, as shown in fig. 1, a pressure relief mechanism is arranged at the falling area pipeline 630, the pressure relief mechanism is a set of air release holes 631 formed in the falling area pipeline 630, and the positions and the number of the air release holes 631 can be designed according to requirements. Preferably, the air escape hole 631 is disposed at a distance behind the junction area of the falling area pipeline 630 and the flat area pipeline and above the deceleration buffer 362, and the aperture of the air escape hole is preferably between 3 and 5mm, so that the air flow conveyed to the falling area pipeline 630 can be discharged from the air escape hole 631, thereby avoiding further applying a thrust to the conveyed object, and thus facilitating to reduce the falling speed of the conveyed object.

The inner diameter of the flatzone tube 620 corresponds to the inner diameter of the non-friction buffer (the area other than the friction buffer) of the drop zone tube 630, and the flatzone tube 620 is horizontal as a whole, but there may be a certain height difference at different positions of the flatzone tube, for example, the flatzone tube is a hose and thus may have a certain curvature.

The flatzone conduit 620 may be directly connected to the routing assembly 400. In another embodiment, the front end of the flattish area pipe 620 is further communicated with a lifting area pipe 610, the connection area between the lifting area pipe 610 and the flattish area pipe 620 is arc-shaped so as to facilitate the passing of the conveying object, the lower end of the lifting area pipe 610 is connected with the sending assembly 400, and the sending assembly 400 is located in a housing.

The lifting area pipe 610 may be vertically disposed, or may be obliquely disposed, and is 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, as shown in fig. 4, an upper end of the lifting area pipe vertically extends upward out of the housing, and the housing is provided with a guide sleeve for the lifting area pipe 610 to pass through.

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.

As shown in fig. 1, in order to reduce the airflow thrust of the flattish area duct, the inner diameter of the flattish area duct 620 is made larger than the inner diameter of the lift area duct 610, so that the thrust generated by the airflow is reduced by increasing the sectional area of the flattish area 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 connecting areas.

Of course, in some embodiments, at least one of the lifting zone conduit 610 or the dropping zone conduit 630 is not required, and for example, there may be only the flatbed conduit 620 and the dropping zone conduit 630, or there may be only the flatbed conduit 620, or even only the dropping zone conduit 630.

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. 1 and 4, the air supply pipeline 700 includes an air flow generating device 710, the air flow generating device 710 is disposed in a housing and located below the sending fixing seat 420 of the sending module 400, and the sending module 400 is also located in the housing. 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. 1, a first off trigger sensor 640 for determining that a conveyed object completely enters the flatzone pipe 620 is disposed behind a junction area of the lifting zone pipe 610 and the flatzone pipe 620, and preferably, the first off trigger sensor is disposed on the pipe connector 660.

As shown in fig. 1, 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 700 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, at this time, if the air supply pipeline 700 only supplies air to one sending module 400, the air flow generating device 710 may be controlled to stop, and of course, the two electromagnetic valves of the two air supply branches 740 may also be turned off. Of course, when one set of air supply lines 700 is plural the air supply of the sending module 400, the control system controls the two solenoid valves of the two air supply branches 740 corresponding to the air supply of the sending module to 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).

As shown in fig. 4, when the number of the sending modules 400 is at least 2, one connection port of each sending module 400 is connected to an output pipeline 600, so that the delivery objects can be delivered to different destinations, and of course, the delivery objects can be delivered to the same destination. In this case, each of the sending modules 400 may be connected to one air supply pipeline 700, i.e., each sending module 400 is provided with one air supply pipeline 700. Of course, a plurality of sending the subassembly 400 also can share same air supply line 700, at this moment, only need to increase the quantity of parallelly connected air supply branch 740 in the foretell air supply line 700 can, for example be two when sending the subassembly 400 air feed, then air supply branch 740 can be 4, and two air supply branches 740 are the air feed of a sending subassembly 400.

As shown in fig. 4 to 7, the sending module 400 is connected to a feeding mechanism for feeding the conveying object a, and the feeding mechanism may be a structure for conveying a blood collection tube to the sending module 400 as disclosed in application No. 202021337054.4. However, at this time, only one dispensing assembly 400 can be dispensed with by one dispensing mechanism.

In a more preferable mode, at least two of the sending assemblies 400 are supplied by a supply mechanism, as shown in fig. 5 and fig. 6, the supply mechanism includes a bin 100 having an inlet at an end surface, a feeding member 200, a buffer storage member 300 and a distribution mechanism 500, and the specific structures of the bin 100, the feeding member 200, the buffer storage member 300 and the sending assemblies 400 are the same as those of the chinese invention patent with application number 202021337054.4, publication number CN212531516U and name "a blood collection tube transmission and sending machine". Of course, besides the above-mentioned stock bin 100, the feeding member 200 and the buffer storage member 300, the feeding mechanism of the present embodiment also has the structures of the housing, the feeding port and the like of the above-mentioned patent.

As shown in fig. 6 and 6, the buffer storage 300 is connected to at least two of the 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. 7 and 8, 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. 7 and 8, 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. 9, in order to reduce the impact when the conveying object falls from the inclined plane 511 into the material guiding chute 520, the top surface of the side where the two material guiding chutes 520 are connected with the inclined plane 511 is an inclined plane 521 inclined from the inclined plane into the guiding chute. 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. 7 and 10, 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. 10, 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. 10, 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. 6 and 7, two connecting arms 5415 are used to connect the translation driving mechanism 542, they are arranged at an obtuse angle with the side wall 5411 and extend vertically, each connecting arm 5415 is integrally formed with the side arm 5411 connected with it, but they may also be two independent parts, and they 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. 7 and 10, the two connecting arms 5415 are connected to a sliding piece 543, the sliding piece 543 is slidably disposed on a guide rail 544 and connected to a mechanism for driving the sliding piece 543 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 piece 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. 10, 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. Of course, 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. 8, 10 and 11, 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.

The lower end of each material guide chute is connected with a feed inlet of one sending assembly 400, and a plurality of sending assemblies 400 can be independent devices or integrated into a whole. As shown in fig. 11, when there are two material guiding chutes 520, two sending rotary blocks 410 of two sending assemblies 400 are located in one sending fixed seat 420, a large feeding hole 421 is formed on the sending fixed seat 420, the lower ends of the two material guiding chutes extend into the feeding hole 421 and correspond to one sending rotary block 410, and the sending channel 411 of the sending rotary block 410 can rotate to communicate with the feeding hole 421 so as to communicate 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.

The above-mentioned sensors, motors, and structures for supplying air to the air cylinder are all connected to a known feasible control system, and the control system controls the automatic operation of the whole device, which is a known technology and is not described herein again.

Example 2

The embodiment further discloses a method for sending the blood sampling tube by adopting the article 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. Article sending system, including sending the subassembly, a connector connection air supply line of sending the subassembly, its another connector connection output pipeline, output pipeline includes gentle district's pipeline and whereabouts district's pipeline at least, the lower extreme of whereabouts district's pipeline is discharge end, its characterized in that: the pipeline of the falling area is provided with a deceleration buffer area, a group of friction buffer parts are distributed at the deceleration buffer area from top to bottom at intervals, and each inner section area of each friction buffer part is smaller than that of other positions of the pipeline of the falling area.

2. The item delivery system of claim 1, wherein: the length of the deceleration buffer is between 1 and 2 m.

3. The item delivery system of claim 2, wherein: the falling area pipeline is vertically arranged, and the lower end of the deceleration buffer area is close to the lower end of the falling area pipeline.

4. The item delivery system of claim 1, wherein: the distance between the adjacent friction buffer parts is 3-5 cm.

5. The item delivery system of claim 1, wherein:

the deceleration buffer area is a hose, the friction buffer part is formed by a group of claspers sleeved on the periphery of the hose, and the inner diameter of the hose in the clasping area of the claspers is smaller than the inner diameter of other positions of the hose;

6. The item delivery system of claim 1, wherein: and a group of air leakage holes positioned above the deceleration buffer area are formed on the falling area pipeline.

7. The article delivery system of claim 6, wherein said air-escape holes have an aperture of 3-5mm and a number of between 10-20.

8. The item delivery system of claim 1, wherein: the front end of the gentle area pipeline is also communicated with a lifting area pipeline, the inner diameter of the gentle area pipeline is larger than that of the lifting area pipeline, and the inner diameter of the non-friction buffering part of the falling area pipeline is equivalent to that of the gentle area pipeline.

9. The item delivery system of claim 8, wherein: when the conveying object is in the gentle district pipeline the air feed flow of air supply line is less than when the conveying object is in the promotion district pipeline the air feed flow of air supply line.

10. The item delivery system of claim 1, wherein: the number of the sending assemblies is at least 2, and the sending assemblies are connected with the same air supply pipeline.

11. The article delivery system according to any one of claims 1 to 10, wherein: the feed inlet of the sending assembly is connected with the feeding mechanism.

12. The item delivery system of claim 11, wherein: send the subassembly to be at least 2, it is a plurality of send the feed inlet of subassembly to connect same feeding mechanism, feeding mechanism includes at least

The blanking slideway is obliquely arranged and fixed in position;

13. Article sending system's output pipeline, including the promotion district pipeline, the gentle district pipeline and the whereabouts district pipeline that communicate in proper order, its characterized in that: the lower extreme of whereabouts district pipeline is the discharge end, the whereabouts district pipeline has a speed reduction buffer, speed reduction buffer department from top to bottom interval distribution has a set of friction buffering portion, every the interior cross sectional area of friction buffering portion is less than the interior cross sectional area of other positions of whereabouts district pipeline.

14. The output conduit of the item delivery system of claim 13, wherein: the inner diameter of the lifting area pipeline is smaller than that of the gentle area pipeline, and the inner diameter of the non-friction buffer part of the falling area pipeline is equivalent to that of the gentle area pipeline.

15. An output conduit for an article dispensing system, characterized by: the pipeline is characterized by at least comprising a falling area pipeline which is vertically arranged, wherein the falling area pipeline is provided with a deceleration buffer area, a group of friction buffer parts are distributed at the deceleration buffer area from top to bottom at intervals, and each inner section area of each friction buffer part is smaller than the inner section area of other positions of the falling area pipeline.