TWI820768B - Negative pressure delivery system - Google Patents

Abstract

This article provides a negative pressure conveying system, including: a container temporary storage area configured to store containers to be conveyed; a transfer identification module including a transfer part, an identification part, and a pushing device. The transfer part transfers the container to the identification part and allows the container to pass The identification part determines the information about the container; it includes the main body, the driving source, the turntable, and the sending module of the transmission mechanism. The turntable is driven by the driving source through the transmission mechanism and can rotate around the horizontal central axis; it includes the negative pressure generator and the negative pressure generator. The receiving module of the ballast; the transmission pipe connecting the sending module and the receiving module; and a controller with instructions for: causing the identification part to identify the mark on the container during the passage of the container, and determining the identity of the relevant container based on the mark. information, and transmits the judgment result to the controller; the push device pushes the container to the turntable of the sending module; then, based on the judgment result, the turntable is rotated around the horizontal central axis so that the specific end of the container is aligned with the container The sending port; and then, the sending module sends the container into the conveying pipe, and starts the negative pressure generator to make the conveying pipe a negative pressure environment, so that the container moves along the conveying pipe to the negative pressure chamber.

Description

Negative pressure conveying system

The present invention relates to a negative pressure conveying system, and particularly to a negative pressure conveying system capable of determining the classification and direction of one or more containers.

Negative pressure container transport systems for transporting containers such as test tubes are known. In the conventional negative pressure container conveying system, when many containers need to be sent to different receiving ends, the containers must be manually classified, and then the containers must be sent to the corresponding sending module to send the containers. to the negative pressure pipeline and transported to the destination receiving end via the negative pressure pipeline. This method is not only time-consuming, but also difficult to eliminate the possibility of identification and classification errors.

In addition, due to the huge size of the sending module in the conventional negative pressure container conveying system, when multiple sending modules need to be installed in the negative pressure container conveying system to convey many types of containers to the corresponding receiving ends, such a load Pressure vessel conveying systems will also be bulky. For negative pressure container delivery systems that are often constructed in buildings such as medical institutions, the large system volume will adversely occupy more building space.

Furthermore, the configuration of the sending module mechanism in the aforementioned negative pressure container conveying system makes it difficult to set each container entering the sending module to the same orientation before being sent to the negative pressure pipeline. Therefore, many containers enter the negative pressure pipeline with different orientations, which may affect the transportation speed of the containers in the negative pressure pipeline, and multiple containers in the same negative pressure pipeline may have different traveling speeds, causing the Container congestion and/or collision.

In one embodiment, a negative pressure conveying system includes: a container temporary storage area configured to store containers to be conveyed, wherein the container has a first end and a second end, and the shape of the first end is the same as that of the second end. The shapes of the two ends are different, and the outer surface of the container has a mark; the transfer identification module includes a transfer part, an identification part, and a pushing device, wherein the transfer part is configured to transfer the container from the container temporary storage area to the identification part, and causes the transferred container to pass through the identification part, where the identification part is configured to determine information about the container from the mark on the container; the sending module includes a body with a container sending port, a driving source installed on the body, and a The turntable in the body and the transmission mechanism connecting the driving source and the turntable, wherein the turntable is driven by the driving source through the transmission mechanism and can rotate around the horizontal central axis; the receiving module includes a negative pressure generator and a negative pressure chamber; a transmission pipe, It is connected to the container sending port and the receiving module of the sending module; and a controller is coupled and communicates with the sending module, the receiving module, and the delivery identification module. The controller has instructions for: enabling identification The unit identifies the mark on the container while the container passes through the identification unit, determines the information about the container based on the mark, and transmits the result of the determination to the controller; based on the result of the determination, the push device pushes the container to the turntable of the sending module; Then, based on the result of the determination, the turntable is rotated around the horizontal central axis so that the first end of the container is aligned with the container sending port; and then, the sending module is made to send the container through the container sending port into the conveying pipe, and The negative pressure generator is activated to create a negative pressure environment in the transmission pipe, so that the container moves along the transmission pipe to the negative pressure chamber of the receiving module.

In another embodiment, a negative pressure conveying system includes: a container temporary storage area configured to store containers to be conveyed, wherein the container has a first end and a second end, and the first end has a shape similar to The shape of the second end part is different, and the outer surface of the container has a mark; the transfer identification module includes a transfer part, an identification part, and a pushing device, wherein the transfer part is configured to transfer the container from the container temporary storage area to the identification part and allow the transferred container to pass through the identification part, where the identification part is configured to determine the classification and direction of the container from the mark on the container; a plurality of sending modules, each of which includes a body with a container sending port, a A driving source, a turntable contained in the body, and a transmission mechanism connecting the driving source and the turntable, wherein the turntable is driven by the driving source through the transmission mechanism to rotate around a horizontal central axis; a plurality of receiving modules, each of which includes a negative pressure generator and a negative pressure chamber; a plurality of transmission pipes, each of which is connected to a container sending port of one of a plurality of sending mechanisms and a corresponding one of a plurality of receiving modules; and a controller, which is connected to a plurality of sending modules and a plurality of receiving modules. The module, and the transmission identification module are coupled and communicated, and the controller has instructions for the following: causing the identification part to identify the mark on the container while the container passes through the identification part, determine the classification and direction of the container based on the mark, and determine the The result is sent to the controller; based on the judgment result, the push device pushes the container to the turntable of the target sending module among the plurality of sending modules, where the target sending module corresponds to the classification of the container; thereafter, based on the judgment As a result, the turntable is rotated around the horizontal central axis so that the first end of the container is aligned with the container sending port of the target sending module; and then, the target sending module is made to send the container through the container sending port of the target sending module. port, and enter the target transfer pipe among the plurality of transfer pipes connected to the container sending port of the target sending module, and activate the negative pressure generator of the target receiving module among the plurality of receiving modules connected to the target transfer pipe. , so that the target conveying pipe has a negative pressure environment, so that the container moves along the target conveying pipe to the negative pressure chamber of the target receiving module.

In order to enable readers of the present invention to have a better understanding of the technical features and advantages of the present invention, the following preferred embodiments are enumerated. It should be understood that the various embodiments shown in the figures are illustrative only and are not necessarily drawn to scale. In the drawings, many details have been omitted to avoid unnecessary confusion.

Figure 1 shows the structure of a negative pressure conveying system 1 according to an embodiment of the present invention. As shown in FIG. 1 , the negative pressure conveying system 1 may include an automatic transmitter 11 , one or more receiving modules 12 , a transmission tube 13 connecting the automatic transmitter 11 and one or more receiving modules 12 , and an automatic transmitter. The controller 14 is coupled to the machine 11 and one or more receiving modules 12 . FIG. 2 schematically shows a perspective view of the automatic sender 11 of the negative pressure conveying system 1 according to an embodiment of the present invention. As shown in Figures 1 and 2, the automatic dispatcher 11 may include a container temporary storage area 111, a delivery identification module 112, and, for example, four dispatch modules 113-1~113-4. For ease of explanation, the sending modules 113-1 to 113-4 are sometimes referred to as the sending module 113 below. In addition, it should be noted that the number of sending modules 113 is not limited to what is shown and can be increased or decreased as needed. In addition, the number of transmission tubes 13 and receiving modules 12 can also be increased or decreased as the number of sending modules 113 increases or decreases. For example, in the example of four transmitting modules 113-1, 113-2, 113-3, and 113-4, four receiving modules 12-1, 12-2, 12-3, and 12-4 (collectively referred to as the receiving modules 12), and four transmission tubes 13-1, 13-2, 13-3, and 13-4 are respectively connected to the sending modules 113 and the receiving modules 12.

The container temporary storage area 111 can accommodate one or more containers 2 to be transported. Figure 3 shows an example of a substantially cylindrical container 2, but containers 2 with other shapes and/or configurations may also be used as long as they can be conveyed by the negative pressure conveying system 1. In the embodiment shown in FIG. 3 , the container 2 has a first end 21 and a second end 22 , wherein the shape of the first end 21 is different from the shape of the second end 22 , but is not limited thereto. Furthermore, a mark 23 is provided on the outer surface of the container 2 . The mark 23 indicates a lot of information associated with the container 2 for use in the identification operation described later. In one embodiment, the mark 23 includes information indicating the orientation of at least one of the first end 21 and the second end 22 . In another embodiment, the mark 23 may be disposed close to the first end 21 or the second end 22 as an indicator of the first end 21 or the second end 22 . In one embodiment, the mark 23 includes information about the contents of the container 2 in addition to information indicating the orientation of at least one of the first end 21 and the second end 22 . Furthermore, for example, the mark 23 is in the form of a barcode, but is not limited thereto.

Referring back to FIG. 2 , the delivery identification module 112 may include a delivery part 112A, an identification part 112B, and a push device 112C. The transfer part 112A may be configured to transfer the container 2 from the container buffer area 111 to the identification part 112B. In the embodiment shown in FIG. 2 , the transfer part is configured in the form of steps, and the container 2 is pushed upward along each step to reach the identification part 112B. However, this is only an example, and other methods and/or mechanisms, such as conveyor belts and transfer arms, may also be used to transfer the container 2 to the identification part 112B. When the container 2 reaches the identification part 112B, the transfer part 112A continues to push the container 2 through the identification part 112B, for example.

Continuing to refer to FIG. 2 , the identification part 112B may be configured to have a shape such as a slope to allow the container 2 to roll or slide through the effective identification range of the identification part 112B. It should be noted that the configuration of the slope-type identification part 112B shown in FIG. 2 is only an example, and any other configuration that allows the container 2 to pass through the identification part 112B may also be adopted, such as a conveyor belt, a transfer arm, etc. For example, while the container 2 passes through the identification part 112B, the identification part 112B can use optical identification technology (such as a scanning lens) to capture the image of the mark 23 on the container 2 and analyze the information carried by the mark 23. The information can be For example, it includes the transportation destination of the container and/or the orientation of the container presented in the identification part 112B, and may also include the contents of the container, the date and time of collection of the contents, and so on. After the container passes through the identification part 112B, it reaches the pushing device 112C. In the embodiment shown in FIG. 2 , since the sending modules 113 - 1 ~ 113 - 4 are arranged on the side of the delivery identification module 112 , the pushing device 112C is configured to move laterally so that the identification part 112B The identified container 2 is pushed to one of the sending modules 113-1~113-4 connected to the destination receiving module 12. However, the location of the sending module 113 shown in Figure 2 is only an example, and other locations and/or arrangements can be selected to set the sending module 113 as needed. Therefore, the movement direction of the push device 112C can also be determined according to the sending module. The installation position of 113 is adjusted to push the container 2 recognized by the recognition part 112B to the appropriate sending module 113.

Details of the sending module 113 are described below. FIG. 4 schematically shows the sending module 113 of the automatic sending machine 11 according to an embodiment of the present invention. As shown in FIG. 4 , the sending module 113 includes a body 1131 , a driving source 1132 installed on the body 1131 , a turntable 1133 accommodated in the body 1131 , and a transmission mechanism (not shown) connecting the driving source 1132 and the turntable 1133 . The body 1131 has a container delivery port 1131A, and the first end 13A of the transfer tube 13 is connected to the container delivery port 1131A. For example, the turntable 1133 may be a disk disposed on a plane with a horizontal central axis X that is substantially parallel to the horizontal plane as a normal direction. The turntable 1133 has a space S that can accommodate a single container 2, and the space S has an opening on the side of the turntable 1133. The identified container 2 can be pushed through the opening of the space S on the side of the turntable 1133 and into the space S by the pushing device 112C in a direction parallel to the plane normal to the horizontal central axis X. When the turntable 1133 is driven by the driving source 1132 through the transmission mechanism, the turntable 1133 can rotate clockwise or counterclockwise by a predetermined angle around the horizontal central axis 22 Align the container sending port 1131A. For example, the driving source 1132 can be a motor, a driving cylinder, etc., and in the case where the driving source 1132 is a driving cylinder, only a solenoid valve can be used to control the driving source 1132 without the need to provide additional electronic control such as a motor controller. element. For example only, in the aforementioned configuration in which the sending module 113 is located on the side of the delivery identification module 112, the container 2 can be horizontal before being sent into the space S by the pushing device 112C, and its first end 21 and second end The portions 22 are oriented toward both sides of the transmission identification module 112 . In such an embodiment, the predetermined angle of rotation of the turntable 1133 may be 90 degrees clockwise or 90 degrees counterclockwise, but is not limited thereto.

Referring back to FIG. 1 , as shown in the figure, each receiving module 12 includes a negative pressure generator 121 and a negative pressure cabin 122 . Specifically, the second end 13B of the transmission pipe 13 is connected to the inlet side 122A of the negative pressure chamber 122 . In addition, the outlet side 122B of the negative pressure chamber and the negative pressure generator 121 can be connected using a pipeline 123 . When the negative pressure generator 121 is started, the gas in the negative pressure chamber 122 is evacuated through the pipeline 123, and therefore the gas in the transmission pipe 13 connected to the negative pressure cabin 122 is evacuated, and a gas is formed in the transmission pipe 13. negative pressure. In this case, once the sending module 113 pushes the container 2 into the transfer tube 13, the negative pressure in the transfer tube 13 can transfer the container 2 to the negative pressure chamber 122, and can be received by the receiver located in the receiving module 12. Charge.

For example, the transmission tube 13 is a flexible material tube, such as silicone tube, Teflon tube, etc., but is not limited thereto. In one embodiment, the outer diameter of the transfer tube 13 is between 22 mm and 25 mm, and the inner diameter is between 19 mm and 22 mm. In a specific embodiment, the outer diameter of the transfer tube 13 is about 22 mm, and the inner diameter is about 19 mm. In one embodiment, the vacuum generator 13C can be disposed in each transfer tube 13 and adjacent to the container delivery port 1131A (ie, adjacent to the first end 13A of the transfer tube 13). Such a vacuum generator 13C can be configured to be activated when the sending module 113 sends the container 2 into the transfer tube 13 to generate a vacuum between the vacuum generator 13C and the container sending port, and provide the container 2 with a vacuum in the transfer tube. Auxiliary attraction towards receiving module 12 in 13.

Specifically, the controller 14 (shown in FIG. 1 ) may be configured to couple and communicate with the sending module 113 , the receiving module 12 , and the delivery identification module 112 . For example, controller 14 may include one or more memory devices, one or more mass storage devices, and one or more processors. The controller 14 is configured to at least control the operations of the sending module 113, the receiving module 12, and the delivery identification module 112. A number of instructions may be stored in the controller 14 to implement/execute operations such as transferring, identifying, and sending the container 2 described herein. In some embodiments, the foregoing instructions may be loaded into a memory device from a mass storage device of the controller 14 and may be executed on a processor of the controller 14 . The instructions described in this document may be configured in any suitable manner. For example, a number of negative pressure conveying system component subroutines or control objects can be written to control the operation of the negative pressure conveying system components required to perform negative pressure conveying of containers. The instructions described herein may be encoded in any suitable computer-readable programming language. In some embodiments, the instructions are implemented in software. In other embodiments, the instructions may be implemented in hardware or firmware.

One or more embodiments of the instructions described herein may also be produced as computer-readable code on a non-transitory computer-readable medium. Non-transitory computer-readable media is any data storage hardware unit, such as a memory device, that stores data, which is then read by a computer system. Examples of non-transitory computer-readable media include hard drives, network attached storage devices (NAS), ROM, RAM, compact disc ROMs (CD-ROMs), recordable CDs (CD-R), and rewritable CDs (CD-ROMs). RW), magnetic tape, and other optical and non-optical data storage hardware units. In some embodiments, non-transitory computer-readable media includes computer-readable tangible media distributed over a network-coupled computer system so that the computer-readable code can be stored and executed in a distributed fashion.

In embodiments in which the transported containers 2 are to be sent to the same destination, the instructions described herein may include instructions to perform the following operations: the identification unit 112B identifies the mark 23 on the container 2 while the container 2 passes through the identification unit 112B, based on The flag 23 determines the information about the container 2 (for example, the direction in which the container 2 appears on the recognition unit 112B), and transmits the determination result to the controller 14; based on the aforementioned determination result, the push device 112C pushes the container 2 to the sending module 113 in the turntable 1133; then, when the container 2 is located in the turntable 1133, based on the aforementioned determination result, the driving source 1132 is caused to rotate the turntable 1133 around the horizontal central axis X through the transmission mechanism, so as to move the first end 21 of the container 2 And one of the predetermined second ends 22 is aligned with the container sending port 1131A, so that each container 2 passing through the container sending port 1131A first passes through the container sending port 1131A with the same end; and then, the sending module 113 will The container 2 is sent through the container sending port 1131A and enters the conveying tube 13, and the negative pressure generator 121 of the receiving module 12 is activated to create a negative pressure environment in the conveying tube 13, so that the container 2 moves along the conveying tube 13 to the receiving module. Negative pressure chamber 122 of group 12.

In addition, in an embodiment in which the transported containers 2 have multiple categories and will be sent to different destinations according to their categories, the instructions described herein may include instructions to perform the following operations: the identification unit 112B detects when the container 2 passes through the identification unit 112B. During this period, the mark 23 on the container 2 is recognized, the information about the container 2 is determined based on the mark 23 (such as the type of the container 2 and the direction presented in the recognition part 112B), and the determination result is sent to the controller 14; based on the aforementioned determination result , causing the pushing device 112C to push the container 2 to the turntable 1133 of one of the target sending modules (such as the aforementioned sending module 113-1) of the sending module 113; thereafter, when the container 2 is located in the turntable 1133, Based on the foregoing determination result, the driving source 1132 is caused to rotate the turntable 1133 around the horizontal central axis Each container 2 passing through the container sending port 1131A first passes through the container sending port 1131A with the same end; and then, the sending module 113-1 sends the container 2 through the container sending port 1131A and enters the sending module 113-1 One of the target transmission pipes of the connected transmission pipe 13 (such as the aforementioned transmission pipe 13-1), and one of the target receiving modules of the receiving module 12 connected to the transmission pipe 13-1 (such as the aforementioned receiving module 12-1 ) of the negative pressure generator 121 is activated to create a negative pressure environment in the transfer pipe 13-1, so that the container 2 moves along the transfer pipe 13-1 to the negative pressure chamber 122 of the receiving module 12-1.

For example, the relationship between the container type and its corresponding target sending module can be preset and stored in the controller 14 .

Through the configuration of the negative pressure conveying system of the present invention, it can effectively solve the problem that when the location of the container sending end and the receiving end spans floors or even across buildings, manual long-distance and long-term transmission is required, which may cause time delays, containers and/or their contents. Damage and other issues. Moreover, since the negative pressure conveying system of the present invention uses a soft material pipe with a smaller size than the conventional negative pressure conveying technology as the conveying pipe, the setting of the conveying pipe is more flexible, regardless of where the sending end and receiving end of the container are located. For new construction and/or existing ones, conveyor pipes can be configured to reduce construction difficulties and optimize container conveyance, thereby shortening the time required from container delivery to completion of analysis of container contents. In addition, by utilizing the negative pressure conveying system of the present invention, the user does not need to attach any form of additional packaging to the container before conveying the container, and can directly place it into the negative pressure conveying system of the present invention. Thereafter, the negative pressure conveying system of the present invention can automatically identify, classify, align, and send the inserted containers. In this way, the need for container packaging can be reduced, transportation efficiency can be improved, and the risk of container contamination can be reduced. Furthermore, since the sending module in the negative pressure conveying system of the present invention can automatically orient each container entering the sending module and send each container to the conveying pipe in the same direction, each container can be transported The tube travels to the receiving end at substantially the same conveying speed, so that even if there are multiple containers in the same conveying tube, congestion and/or collision of containers in the conveying tube can still be effectively avoided.

Although the present invention has been described in detail with reference to the preferred embodiments and drawings, those skilled in the art can easily understand that many modifications, changes and equivalent alternative designs can be made without departing from the spirit and scope of the invention. , however, these modifications, changes and equivalent alternative designs should still be deemed to fall within the patentable scope of the present invention.

1: Negative pressure conveying system

2: Container

11: Automatic sending machine

12:Receive module

12-1~12-4: Receiving module

13:Transmission tube

13-1~13-4:Transmission tube

13A:First end

13B:Second end

13C: Vacuum generator

14:Controller

21:First end

22:Second end

23: logo

111:Container staging area

112: Transfer identification module

112A: Delivery Department

112B:Identification Department

112C: Push device

113:Send module

113-1~113-4: Send module

1131:Ontology

1131A: Container sending port

1132:Drive source

1133:Turntable

121: Negative pressure generator

122:Negative pressure chamber

122A: Entrance side

122B:Exit side

123:Pipeline

S: space

X: horizontal center axis

FIG. 1 schematically shows the architecture of a negative pressure conveying system according to an embodiment of the present invention.

FIG. 2 schematically shows a perspective view of an automatic sender of a negative pressure conveying system according to an embodiment of the present invention.

Figure 3 shows an example of a container conveyed by a negative pressure system.

FIG. 4 schematically shows a sending module of an automatic sending machine according to an embodiment of the present invention.

In the drawings of the present invention, element symbols may be used repeatedly to identify similar and/or identical elements.

11: Automatic sending machine

13:Transmission tube

13-1~13-4:Transmission tube

111:Container staging area

112: Transfer identification module

112A: Delivery Department

112B:Identification Department

112C: Push device

113:Send module

113-1~113-4: Send module

Claims (12)

A negative pressure conveying system includes: a container temporary storage area configured to store containers to be conveyed, wherein the container has a first end and a second end, and the shape of the first end is consistent with that of the second end. The shapes of the parts are different, and the outer surface of the container has a mark; a transfer identification module, which includes a transfer part, an identification part, and a pushing device, wherein the transfer part is configured to transfer the container from the container temporary storage area The container is passed to the identification part, and the passed container passes through the identification part, wherein the identification part is configured to determine information about the container from the mark on the container; a sending module, which includes a A body of the container delivery port, a driving source installed on the body, a turntable contained in the body, and a transmission mechanism connecting the driving source and the turntable, wherein the turntable has a container for holding the container A space with an opening on the side of the turntable. The turntable is driven by the driving source through the transmission mechanism and can rotate around a horizontal central axis; a receiving module including a negative pressure generator and a negative pressure chamber. ; A transmission tube that connects the container sending port of the sending module and the receiving module; and a controller that couples and communicates with the sending module, the receiving module, and the delivery identification module, The controller has instructions for: causing the identification unit to identify the mark on the container while the container passes through the identification unit, determine the information about the container based on the mark, and transmit the determined information to The controller; based on the determined information, causes the pushing device to push the container through the opening on the side of the turntable of the sending module in a direction parallel to the plane normal to the horizontal central axis and into the within this space; Thereafter, based on the determined information, the turntable is rotated around the horizontal central axis so that the first end of the container is aligned with the container delivery port; and then, the delivery module is caused to deliver the container. Enter the transfer pipe through the container sending port, and start the negative pressure generator to make the transfer pipe a negative pressure environment, so that the container moves along the transfer pipe to the negative pressure cabin of the receiving module. The negative pressure conveying system of claim 1, wherein the container is pushed into the turntable in a direction parallel to a plane normal to the horizontal central axis. The negative pressure conveying system of claim 1, wherein the conveying pipe is provided with a vacuum generator, and the vacuum generator is located adjacent to the container delivery port. The negative pressure conveying system of claim 1, wherein while the container passes through the identification part, the identification part captures and analyzes the image of the mark on the container to determine the direction of the container. The negative pressure conveying system of claim 4, wherein the container passes through the identification part in a rolling manner. Such as the negative pressure conveying system of claim 1, wherein the conveying pipe is made of a flexible material pipe with an outer diameter between 22mm and 25mm and an inner diameter between 19mm and 22mm. A negative pressure conveying system includes: a container temporary storage area configured to store containers to be conveyed, wherein the container has a first end and a second end, and the shape of the first end is consistent with that of the second end. The shapes of the parts are different, and the outer surface of the container has a mark; a transfer identification module, which includes a transfer part, an identification part, and a pushing device, wherein the transfer part is configured to transfer the container from the container temporary storage area The container is passed to the identification part, and the container passed to it is Through the identification part, wherein the identification part is configured to determine the classification and direction of the container from the mark on the container; a plurality of sending modules, each including a body with a container sending port, installed on the body A driving source, a turntable accommodated in the body, and a transmission mechanism connecting the drive source and the turntable, wherein the turntable has a space to accommodate the container, and the space has an opening on the side of the turntable , the turntable is driven by the driving source through the transmission mechanism to rotate around a horizontal central axis; a plurality of receiving modules, each including a negative pressure generator and a negative pressure chamber; a plurality of transmission tubes, each connected to the The container sending port of one of the sending mechanisms and one of the receiving modules; and a controller, which is connected to the sending modules, the receiving modules, and the delivery identification module. Set coupling and communication, the controller has instructions for the following: causing the identification part to identify the mark on the container while the container passes through the identification part, determining the classification and direction of the container based on the mark, and passing the The determined classification and direction are transmitted to the controller; based on the determined classification and direction, the push device is positioned parallel to the horizontal central axis of the turntable of one of the target sending modules in the plurality of sending modules. In the direction of the normal plane, push the container through the opening on the side of the turntable of the target sending module and into the space, where the target sending module corresponds to the classification of the container; thereafter, According to the determined classification and direction, the turntable is rotated around the horizontal central axis so that the first end of the container is aligned with the container sending port of the target sending module; and then, the target is sent The module sends the container through the container sending port of the target sending module, enters one of the plurality of transfer tubes connected to the container sending port of the target sending module, and sends the target One of the plurality of receiving modules to which the tube is connected is a target receiving module. The negative pressure generator is activated to create a negative pressure environment in the target transfer pipe, so that the container moves along the target transfer pipe to the negative pressure chamber of the target receiving module. The negative pressure conveying system of claim 7, wherein the container is pushed into the turntable in a direction parallel to a plane normal to the horizontal central axis. The negative pressure conveying system of claim 7, wherein each of the plurality of conveying pipes is provided with a vacuum generator, and the vacuum generators are respectively disposed adjacent to the container delivery ports connected to the plurality of conveying pipes. The negative pressure conveying system of claim 7, wherein while the container passes through the identification part, the identification part captures and analyzes the image of the mark on the container to determine the classification and direction of the container. The negative pressure conveying system of claim 10, wherein the container passes through the identification part in a rolling manner. Such as the negative pressure conveying system of claim 7, wherein each of the plurality of conveying tubes is made of a flexible material tube with an outer diameter between 22mm and 25mm and an inner diameter between 19mm and 22mm.