CN113511477B - Goods supply table and goods supply method of sorting machine - Google Patents

Abstract

The invention discloses a sorting machine goods supply table and a goods supply method, and belongs to the technical field of package sorting. The sorting machine supply table comprises a package placing section, a weighing section, an upper package placing section and a control mechanism, wherein the package placing section, the weighing section and the upper package placing section are respectively provided with a first transmission mechanism, a second transmission mechanism and a third transmission mechanism for transmitting packages, the control mechanism controls the transmission states of the transmission mechanisms, the weighing section is further provided with the weighing mechanism, and the weighing mechanism can carry out static weighing or dynamic weighing on the packages. This sorting machine supplies goods platform through adopting syllogic structure, has shortened the length of whole supply goods platform, has reduced the area of supply goods platform, has reduced manufacturing cost, and can accelerate, slow down and at the uniform velocity transmission through making second transport mechanism and third transport mechanism to can improve the operating efficiency, and can realize the accurate butt joint of parcel and letter sorting dolly. The goods supply method shortens the time required for passing the package through the goods supply platform and improves the operation efficiency of the whole goods supply platform.

Description

A kind of sorting machine supply platform and supply method

technical field

The invention relates to the technical field of parcel sorting, in particular to a sorting machine supply platform and a supply method.

Background technique

Sorting parcels is an important process in the logistics industry, and sorting efficiency directly determines the transport rate of parcels. The induction table is a device used to weigh and measure many packages one by one and then introduce them onto the tray of the sorter.

The existing feeding table generally has a four-stage structure, that is, a dynamic scale is added to the middle of the three-stage non-weighing feeding table, and the package is transported on the dynamic scale for a period of time, so that the dynamic scale can complete the package Weighing work. However, due to the large number of sections in the actual use of the four-section feeding table, there are disadvantages such as long overall length, large floor space, high cost, and low operating efficiency.

Contents of the invention

An object of the present invention is to provide a sorting machine delivery platform, which has a small number of sections, a short overall length, a small footprint, low cost, and high operating efficiency.

For reaching this purpose, the present invention adopts following technical scheme:

A sorter supply table, comprising:

A package release section, the package release section is provided with a first transmission mechanism, and the first transmission mechanism can transmit packages at a uniform speed along the first direction;

A weighing section, the weighing section is arranged downstream of the bag releasing section, the weighing section is provided with a second transmission mechanism and a weighing mechanism, and the second transmission mechanism can move at a constant speed along the first direction , accelerating or decelerating the delivery of the package, the weighing mechanism is used for static weighing or dynamic weighing of the package placed on the second delivery mechanism;

An upper bale section, the upper bale section is arranged downstream of the weighing section, the end of the upper bale section is used for docking with the sorting line of the sorter, and a third transmission mechanism is arranged on the upper bale section , the third transport mechanism can transport the parcel along the first direction at a constant speed, accelerate or decelerate;

a control mechanism, the control mechanism communicates with the first transmission mechanism, the second transmission mechanism and the third transmission mechanism to control the first transmission mechanism, the second transmission mechanism and the The transport status of the third transport mechanism.

As a preference, the sorting machine supply table further includes a barcode scanning mechanism, the barcode scanning mechanism is arranged above the package section, and is used to scan the barcode on the package; and/or

The supply table of the sorter further includes a volume measurement mechanism, which is used to obtain the volume of the parcel.

Preferably, the end of the upper bale section has a connecting slope, so that the first direction forms an acute angle α with the conveying direction of the sorting line;

The delivery table of the sorter further includes a detection mechanism, which is arranged at the junction of the package unloading section and the weighing section, and is used to obtain the projected size and center position of the package.

Another object of the present invention is to provide a feeding method which is highly efficient and takes a short time for parcels to pass through the sorting machine feeding table.

For reaching this purpose, the present invention adopts following technical scheme:

A supply method, used for the above-mentioned sorter supply platform, the supply method includes the following steps:

placing the first package on the first transmission mechanism of the package delivery section, and the first package is transmitted along the first direction at a first speed V1 at a constant speed;

The second transport mechanism of the weighing section docks the first package along the first direction at a first speed V1;

The weighing mechanism of the weighing section selects a weighing mode, and weighs the first package, wherein the time required for weighing is T1;

After the weighing is completed, the second transmission mechanism accelerates to the second speed V2, and the first package arrives at the junction of the weighing section and the package section after T2 duration of transmission;

The third transport mechanism of the upper package section docks the first package along the first direction at a second speed V2;

After the first package is transmitted at the second speed V2 for T3, the third transmission mechanism accelerates to the third speed V3, and the first package is transported at the third speed V3 for T4 and arrives at the upper package section and the The junction of the above sorting lines.

Preferably, the placing of the first package on the first transmission mechanism of the package delivery section, and the transmission of the first package along the first direction at a first speed V1 at a constant speed specifically include the following steps:

placing the first package on the first transport mechanism;

Judging whether there is a second package on the weighing section;

If so, the first transmission mechanism stops transmission;

If not, the first transport mechanism continues to transport the first package along the first direction at a first speed V1 at a constant speed.

Preferably, the weighing mechanism of the weighing section selects a weighing method, and weighing the first package specifically includes the following steps:

Judging whether there is a third package on the upper package segment;

If so, the second transmission mechanism decelerates to 0, and the weighing mechanism performs static weighing on the first package;

If not, the second transmission mechanism continues to transmit at the first speed V1, and the weighing mechanism performs dynamic weighing on the first package.

Preferably, the weighing mechanism of the weighing section selects a weighing method, and weighing the first package specifically includes the following steps:

The second transmission mechanism continues to transmit at the first speed V1, and the weighing mechanism performs dynamic weighing on the first package;

Judging whether there is a third package on the upper package segment;

If yes, the second transmission mechanism decelerates to 0;

If not, the second transmission mechanism accelerates to the second speed V2 for transmission.

Preferably, the delivery method also includes the following steps:

The detection mechanism at the junction of the unpacking section and the weighing section acquires the projected area and center point of the first package;

The control mechanism selects the sorting trolley that matches the first package on the sorting line, and calculates the total time T0 for the first package to pass through the weighing section and the loading section;

Among them, T0=S0/V0, S0 represents the distance from the sorting trolley to the upper section, and V0 represents the transmission speed of the sorting trolley.

Preferably, the weighing mechanism of the weighing section selects a weighing method, and weighing the first package specifically includes the following steps:

judging whether the sorting trolley on the sorting line matches the first package;

If so, the second transmission mechanism continues to transmit at the first speed V1, and the weighing mechanism dynamically weighs the first package;

If not, the second transmission mechanism decelerates to 0, and the weighing mechanism performs static weighing on the first package.

Preferably, the weighing mechanism of the weighing section selects a weighing method, and weighing the first package specifically includes the following steps:

The second transmission mechanism continues to transmit at the first speed V1, and the weighing mechanism performs dynamic weighing on the first package;

judging whether the sorting trolley on the sorting line matches the first package;

If so, the second transmission mechanism accelerates to the second speed V2 for transmission;

If not, the second transmission mechanism decelerates to zero.

Beneficial effects of the present invention:

The present invention provides a kind of sorting machine supply platform, this sorting machine supply platform comprises a package section, a weighing section, a package section and a control mechanism, the package section, the weighing section and the package section are respectively provided with The first transmission mechanism, the second transmission mechanism and the third transmission mechanism for transmitting parcels, the control mechanism controls the transmission status of each transmission mechanism, so that the first transmission mechanism can transmit at a uniform speed, the second transmission mechanism and the third transmission mechanism can accelerate, Uniform speed and deceleration movement, the weighing section is also provided with a weighing mechanism, which can carry out static weighing or dynamic weighing on the package. The supply platform of the sorter shortens the length of the entire supply platform by adopting a three-section structure, reduces the footprint of the supply platform, and reduces the manufacturing cost, and by making the second transmission mechanism and the third transmission mechanism It can be accelerated, decelerated and transported at a constant speed, so as to improve the working efficiency and realize the accurate docking of the parcel and the sorting trolley.

The present invention also provides a supply method, which is used for the above-mentioned sorter supply platform, and accelerates the second transmission mechanism from the first speed V1 to the second speed V2 after the weighing is completed, and After the third transmission mechanism docks the package, it accelerates from the second speed V2 to the third speed V3, which shortens the time required for the package to pass through the delivery platform and improves the operating efficiency of the entire delivery platform.

Description of drawings

Fig. 1 is the structural representation of the sorting machine supply platform provided by the present invention;

Fig. 2 is a top view of part of the structure of the sorting machine supply platform provided by the present invention;

Fig. 3 is a step diagram of the sorting method provided by Embodiment 1 of the present invention;

Fig. 4 is a step diagram of the sorting method provided by Embodiment 2 of the present invention;

Fig. 5 is a step diagram of the sorting method provided by Embodiment 3 of the present invention;

Fig. 6 is a step diagram of the sorting method provided by Embodiment 4 of the present invention.

In the picture:

100. Release the package segment;

101. Parcel detection sensor;

200. Weighing section;

300. Upper package segment;

400. Testing agency;

500. Barcode scanning mechanism;

600. Volume measurement mechanism.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance. Wherein, the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Embodiment one

This embodiment provides a sorting machine supply table, which is used to weigh the parcels one by one, and transfer the weighed parcels one by one to the matching sorting machine on the sorting line. on the trolley to complete the packaging of the packages one by one.

As shown in FIG. 1 and FIG. 2 , the supply table of the sorter includes a package unwinding section 100 , a weighing section 200 and a package loading section 300 sequentially connected along a first direction. Wherein, the unpacking section 100 is the place where the delivery platform initially places the parcels, and the parcels are placed one by one on the unpacking station of the unpacking section 100 by manual or external equipment (such as unpacking manipulators, etc.). The package unwinding section 100 includes a first platform, on which a first transmission mechanism is arranged, and the first transmission mechanism transmits along the first direction, and the parcel placed on the first transmission mechanism can be synchronously transmitted to the package unwinding section 100 and the package unwinding section 100. The position where the weighing section 200 is handed over. In this embodiment, the first transport mechanism can transport the first package at a constant speed, and the transport speed is V1. The first stand is cube-shaped, and the transmission length of the first stand is L1, where the transmission length L1 refers to the distance between the unpacking station and the handover position between the unpacking section 100 and the weighing section 200.

Optionally, the first transmission mechanism is a belt transmission mechanism, and the belt transmission mechanism includes a drive motor, a transmission belt, and a driving pulley and a driven pulley arranged at intervals along the first direction at both ends of the bag putting section 100, and the transmission belt is sleeved on the driving pulley. And on the driven pulley, the driving motor is connected with the driving pulley. Driven by the driving motor, the driving pulley can rotate, thereby driving the transmission belt to rotate around the driving pulley and the driven pulley, and the package placed on the transmission belt can be transmitted to the weighing section 200 along the first direction. The driving mechanism is equipped with a high-precision encoder, which can precisely control the moving distance of the transmission belt, thereby accurately controlling the position of the package. Of course, in other embodiments, the first transmission mechanism may be a transmission roller mechanism, and a plurality of transmission rollers are arranged side by side, and each independently rotates around its own axis, so as to drive the package placed on the transmission rollers to the weighing section 200 along the first direction. transmission.

Further optionally, a package detection sensor 101 is also provided on the first transmission mechanism, and the package detection sensor 101 is placed on the package unwinding station to detect whether there is a package on the package unwinding station. The control mechanism of the delivery table of the sorter is connected with the package detection sensor 101 in communication. When the package detection sensor 101 detects that there is a package on the package unloading station, the control mechanism can control the first transmission mechanism to start, thereby starting to carry out the uniform speed of the package. transmission, and when no package is placed on the unpacking station, the control mechanism can control the first transmission mechanism to pause, so as to achieve the purpose of reducing energy consumption.

Continuing to refer to Fig. 1 and Fig. 2, the weighing section 200 is arranged downstream of the bag releasing section 100, and the weighing section 200 includes a second platform, a second transmission mechanism and a weighing mechanism. Wherein, the second platform is cube-shaped, the transmission length of the second platform is L2, and the second transmission mechanism is arranged on the second platform, and can transmit packages at a constant speed, accelerated or decelerated along the first direction. In this embodiment, the speed at which the second transmission mechanism transmits the package at a constant speed is V1, and the accelerated speed is V2, which can be decelerated to 0. The weighing mechanism is set on the second transmission mechanism and has dynamic weighing function and static weighing function. When the second transmission mechanism transmits the parcel at a constant speed V1, the weighing mechanism can dynamically weigh the parcel. When the second When the transmission mechanism decelerates to 0, the weighing mechanism can carry out static weighing on the package.

Optionally, the second transmission mechanism may be the same belt transmission mechanism or transmission roller mechanism as the first transmission mechanism, and its specific structure will not be repeated here.

Continuing to refer to Figures 1 and 2, the upper package section 300 is arranged downstream of the weighing section 200, and the end of the upper package section 300 is used to dock with the sorting line of the sorter to transport the parcels from the supply table to the sorting trolley on the sorting line. The upper package section 300 specifically includes a third stand and a third transmission mechanism arranged on the third stand, the third stand is a cube shape, the transmission length of the third stand is L3, and the third transmission mechanism can move along the first Direction uniform speed, acceleration or deceleration to transmit packages. The speed at which the third transmission mechanism transmits the parcel at a constant speed is V2, and the speed after acceleration is V3, and can be decelerated to 0. The third transmission mechanism may be the same belt transmission mechanism or transmission roller mechanism as the first transmission mechanism, and its specific structure will not be repeated here.

The control mechanism of the supply platform of the sorter is in communication connection with the first transmission mechanism, the second transmission mechanism and the third transmission mechanism, so as to control the transmission status of the first transmission mechanism, the second transmission mechanism and the third transmission mechanism. That is, the control mechanism can control the first conveying mechanism to deliver the package at a constant speed or stop, and can control the second conveying mechanism and the third conveying mechanism to accelerate, decelerate and convey at a constant speed respectively.

In this embodiment, the control mechanism can be a centralized or distributed controller. For example, the controller can be a single single-chip microcomputer, or it can be composed of distributed multi-block single-chip microcomputers. The control program can be run in the single-chip microcomputer, and then control the first The first transmission mechanism, the second transmission mechanism and the third transmission mechanism realize their functions.

Further, as shown in Figures 1 and 2, the end of the upper bag section 300 has a connecting slope, which is used to realize the non-perpendicular connection between the upper bag section 300 and the sorting line, so that the first direction is aligned with the sorting line. The angle between the transport directions at the butt joint is an acute angle α. This setting is not only convenient for arranging the supply table and sorting line, but also enables the smooth transition of parcels from the supply table to the sorting line, preventing the package from slipping out of the sorting line due to excessive velocity component perpendicular to the conveying direction of the sorting line .

Continuing to refer to Fig. 1, this sorting machine supply table also includes detection mechanism 400, and detection mechanism 400 is arranged at the fourth platform place of the junction of package section 100 and weighing section 200, is used for obtaining the projection dimension of package and Central location. Since the end of the upper package section 300 has a connecting inclined plane, the position where the package enters the upper package section 300 is different, and the transmission length L3 on the upper package section 300 is also different. By using the detection mechanism 400 to obtain the center position of the package, the specific L3 value. By obtaining the projected size of the package, it is convenient to calculate the time required for the package to pass through the weighing section 200 and the package section 300 later.

Optionally, the detection mechanism 400 is a light curtain sensor. The light curtain sensor includes a transmitting end and a receiving end facing up and down. The package passes between the transmitting end and the receiving end. The occlusion length and occlusion time of the emitted light curtain calculate the projected size of the parcel.

Further, as shown in FIG. 1 , the sorting machine supply platform also includes a barcode scanning mechanism 500, which is arranged above the package section 100, and is used to scan the barcode on the package, thereby obtaining the information in the package. Detailed information, such as the specific type of items in the package and the receiving address of the package, etc., so that the path of the sorting trolley can be controlled later. Optionally, the barcode scanning mechanism 500 is a barcode scanning camera, and the specific structure of the barcode scanning camera is in the prior art, and will not be described in detail here.

Further, continuing to refer to FIG. 1 , the delivery table of the sorter further includes a volume measurement mechanism 600, which is used to obtain the volume of the parcel. The courier needs to manually input the volume of the package on the logistics system when entering the information. When the barcode scanning mechanism 500 scans the barcode on the package, the input volume of the package can be obtained. By setting the volume measurement mechanism 600, it can Check the size of the package before picking the package, so as to judge whether the volume information entered by the courier is correct, so as to avoid the situation that the courier deliberately enters a small volume, which will lead to a reduction in the courier fee. Optionally, the volume measurement mechanism 600 is a volume measurement camera, and the specific structure of the volume measurement camera is in the prior art, and will not be described in detail here.

The supply platform of the sorter shortens the length of the entire supply platform by adopting a three-section structure, reduces the floor area of the supply platform, and reduces the manufacturing cost; and the supply platform of the sorter makes the second The transmission mechanism and the third transmission mechanism can perform complex processes such as acceleration, deceleration and uniform speed transmission, which can not only improve work efficiency, but also control the weighing method of each package and control the delivery time of each package according to the specific time when the sorting trolley reaches the delivery table. In the transmission state of the weighing section 200 and the package section 300, accurate docking with the sorting trolley is realized.

On the basis of the above-mentioned sorting machine supply platform, this embodiment also provides a supply method, as shown in Figure 3, the supply method specifically includes the following steps:

S1. Place the first package on the first transport mechanism of the package unwinding section 100, and transport the first package along the first direction at a first speed V1 at a constant speed.

Specifically, a package is picked out from the piles of packages manually or manually using external equipment (such as a package release robot), and the package is placed on the package release station of the package release section 100 . In order to describe the flow of the delivery method and facilitate the distinction of packages at different positions on the delivery table, this package is designated as the first package.

Since the transmission length of the unpacking section 100 is L1, the time T0=L1/V1 required for the first package to pass through the unpacking section 100. At this time, if the length L0 of the first parcel itself is far less than the transmission length of the packet delivery section 100, it is L1, so the length L0 of the first parcel itself is ignored when calculating the time, and when the length L0 of the first parcel itself cannot be ignored, T0=(L1+L0)/V1.

S2. The second transmission mechanism of the weighing section 200 docks the first package along the first direction at the first speed V1.

The second transmission mechanism docks the first package at the same transmission speed as the first transmission mechanism, which helps to improve the stability of the first package in the transition between the package section 100 and the weighing section 200, and prevents the package from toppling and causing the items in the package to Damage and displacement of the center position.

S3. The weighing mechanism of the weighing section 200 selects a weighing method, and weighs the first package, wherein the time required for weighing is T1;

After the weighing is completed, the second transmission mechanism accelerates to the second speed V2, and the first package arrives at the junction of the weighing section 200 and the package-up section 300 after being transported for T2.

Specifically, continue to refer to shown in Figure 3, the weighing mechanism of weighing section 200 selects the weighing mode, and weighing the first package specifically includes the following steps:

Judging whether there is a third package on the upper package section 300;

If so, the second transmission mechanism decelerates to 0, and the weighing mechanism statically weighs the first parcel;

If not, the second transmission mechanism continues to transmit at the first speed V1, and the weighing mechanism dynamically weighs the first package.

S4. The third transmission mechanism of the upper package section 300 docks the first package at the second speed V2 along the first direction;

After the first package is transported at the second speed V2 for T3, the third transmission mechanism accelerates to the third speed V3, and the first package is transported at the third speed V3 for T4 and then reaches the junction of the upper package section 300 and the sorting line.

This delivery method accelerates the second transmission mechanism from the first speed V1 to the second speed V2 after the weighing is completed, and accelerates from the second speed V2 to the third speed V3 after the third transmission mechanism docks the package, shortening the The time required for parcels to pass through the delivery station improves the efficiency of the entire delivery station operation.

Optionally, continuing to refer to FIG. 3, the above step S1 specifically includes the following steps:

The first package is placed on the first transport mechanism of the package section 100;

Judging whether there is a second package on the weighing section 200;

If there is, the first transmission mechanism stops transmission;

If not, the first transport mechanism continues to transport the first package along the first direction at a first speed V1 at a constant speed.

The second package here is the package that is downstream of the above-mentioned first package and closest to the first package.

Optionally, the detection mechanism 400 can be used to determine whether there is a second package on the weighing section 200 . Specifically, the detection structure detects the second package as the first time point, the first time point plus the time required for the second package to pass through the weighing section 200 is the second time point, and the package detection sensor 101 detects that the unpacking worker It is the third time point that the first package is placed on the position, and the fourth time point is the third time point plus the time when the first package passes through the bag releasing section 100 . By comparing the order of the second time point and the fourth time point to determine whether there is a second package on the weighing section 200, if the second time point is less than the fourth time point, then there is no second package on the weighing section 200; If the second time point is greater than or equal to the fourth time point, then there is a second package on the weighing section 200 .

Alternatively, it may also be determined whether there is a second package on the weighing section 200 through the detection mechanism 400 and the high-precision encoders arranged on the driving motors of the first transmission mechanism and the second transmission mechanism. Specifically, the detection structure detects the second package as the first time point, and the detection structure detects the first package as the second time point, and a high-precision encoder is used to obtain the second transmission mechanism between the two time points. The transmission distance S, if S is greater than the transmission length L2 of the weighing section 200, then there is no second package on the weighing section 200; pack.

Embodiment two

This embodiment provides a sorter supply platform and a supply method. The difference between this embodiment and Embodiment 1 lies in the selection of the weighing mode in S3 in the supply mode.

Specifically, as shown in Figure 4, the weighing mechanism of the weighing section 200 selects the weighing mode, and weighing the first package specifically includes the following steps:

The second transmission mechanism continues to transmit at the first speed V1, and the weighing mechanism dynamically weighs the first package;

Judging whether there is a third package on the upper package section 300;

If there is, the second transmission mechanism decelerates to 0;

If not, the second transmission mechanism accelerates to the second speed V2 for transmission.

Embodiment three

This embodiment provides a sorter supply platform and a supply method. This embodiment is basically the same as Embodiment 1, the difference lies in the supply method.

As shown in Figure 5, the supply methods differ in:

When the second conveying mechanism of the weighing section 200 docks the first package along the first direction at the first speed V1, the delivery method further includes the following steps:

The detection mechanism 400 at the junction of the package unwinding section 100 and the weighing section 200 obtains the projected area and center point of the first package.

Since the end of the upper package section 300 has a connecting inclined plane, the position where the package enters the upper package section 300 is different, and the distance L3 transmitted on the upper package section 300 is also different. By using the detection mechanism 400 to obtain the center position of the package, the specific distance can be calculated. L3 value. By obtaining the projected size of the package, it is convenient to calculate the time required for the package to pass through the weighing section 200 and the package section 300 later.

Further, continuing to refer to FIG. 5 , the control mechanism may also perform the following steps while the detection mechanism 400 obtains the projected area and center point of the first package:

The control mechanism selects the sorting trolley that matches the first package on the sorting line, and calculates the total time T0 for the first package to pass through the weighing section 200 and the loading section 300 .

Among them, T0=S0/V0, S0 represents the distance that the sorting trolley reaches the upper package section 300, and V0 represents the transmission speed of the sorting trolley.

Further, continuing to refer to FIG. 5 , in this embodiment, the weighing mechanism of the weighing section 200 in the above-mentioned step S3 selects a weighing mode, and weighing the first package specifically includes the following steps:

The sorting trolley that judges whether the sorting line matches the first package;

If so, the second transmission mechanism continues to transmit at the first speed V1, and the weighing mechanism dynamically weighs the first package;

If not, the second transmission mechanism decelerates to 0, and the weighing mechanism performs static weighing on the first package.

In this embodiment, taking the sorting trolley that matches the first parcel on the sorting line, and the weighing mechanism chooses to dynamically weigh the first parcel as an example, how does the control mechanism measure the weight of the second transmission mechanism and the third transmission mechanism? A brief introduction to planning the transmission speed and transmission time:

T0=S0/V0①, S0 and V0 are fixed values;

T0=T1+T2+T3+T4②, T1>=T _weighing , T2>=0, T3>=0, T4>0;

L2=T1*V1+T2*V2③, V1 and L2 are fixed values;

L3=V2*T3+V3*T4④, L3 is a fixed value, which can be directly obtained by using the center point position of the first package obtained by the detection mechanism 400;

V3=V0/cos(α)⑤, both V0 and α are fixed values;

Through the above formulas and restrictions, the appropriate T1, T2, T3, T4 and V2 can be calculated by using mathematical software.

In this embodiment, V0=2m/s; V1=1.1m/s; V2=1.8m/s; V3=2.3m/s; a=30°.

Of course, in other embodiments, if the transmission steps of the first package are changed, the above formula can be properly deformed, so as to calculate the appropriate T1, T2, T3, T4 and V2 according to the new formula after deformation.

Embodiment four

This embodiment provides a sorter supply platform and a supply method. The difference between this embodiment and Embodiment 3 lies in the selection of the weighing method in S3 in the supply mode.

As shown in Figure 6, the weighing mechanism of the weighing section 200 selects the weighing mode, and the weighing of the first package specifically includes the following steps:

The second transmission mechanism continues to transmit at the first speed V1, and the weighing mechanism dynamically weighs the first package;

The sorting trolley that judges whether the sorting line matches the first package;

If so, the second transmission mechanism accelerates to the second speed V2 for transmission;

If None, the second transport decelerates to 0.

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (9)

1. A sorter feed table comprising:

the package placing section (100), wherein a first transmission mechanism is arranged on the package placing section (100) and can uniformly transmit packages along a first direction;

the weighing section (200) is arranged at the downstream of the bag placing section (100), a second transmission mechanism and a weighing mechanism are arranged on the weighing section (200), the second transmission mechanism can uniformly speed, accelerate or decelerate the package along the first direction, and the weighing mechanism is used for carrying out static weighing or dynamic weighing on the package placed on the second transmission mechanism;

the upper package section (300), the upper package section (300) is arranged at the downstream of the weighing section (200), the tail end of the upper package section (300) is used for being in butt joint with a sorting line of a sorting machine, a third transmission mechanism is arranged on the upper package section (300), and the third transmission mechanism can uniformly speed, accelerate or decelerate and transmit the package along the first direction;

the control mechanism is in communication connection with the first transmission mechanism, the second transmission mechanism and the third transmission mechanism so as to control the transmission states of the first transmission mechanism, the second transmission mechanism and the third transmission mechanism;

the sorting machine supply table further comprises a detection mechanism (400), wherein the detection mechanism (400) is arranged at the joint of the package placing section (100) and the weighing section (200) and is used for acquiring the projection size and the center position of the package;

placing a first package on the first transport mechanism;

judging whether a second package exists on the weighing section (200);

judging whether the second wrapping exists on the weighing section (200) or not through the detection mechanism (400): determining whether a second package is present on the weighing section (200) by comparing the sequence of the second time point and the fourth time point, and if the second time point is smaller than the fourth time point, the weighing section (200) is free of the second package; if the second time point is greater than or equal to the fourth time point, the second package is arranged on the weighing section (200);

or, judging whether the weighing section (200) has a second package or not by the detection mechanism (400) and a high-precision encoder arranged on the driving motors of the first transmission mechanism and the second transmission mechanism: the detection mechanism (400) is used for detecting the second package as a first time point, the detection mechanism (400) is used for detecting the first package as a second time point, a high-precision encoder is used for obtaining the distance S transmitted by the second transmission mechanism between the two time points, and if S is greater than the transmission length L2 of the weighing section (200), the weighing section (200) is free of the second package; and if S is smaller than or equal to the transmission length L2 of the weighing section (200), the second package is arranged on the weighing section (200).

2. The sorter feed table of claim 1 wherein,

the sorting machine supply table further comprises a bar code scanning mechanism (500), wherein the bar code scanning mechanism (500) is arranged above the package placing section (100) and is used for scanning bar codes on packages; and/or

The sorter feed station further includes a volume measurement mechanism (600), the volume measurement mechanism (600) for acquiring the volume of the parcel.

3. The sorter feed table of claim 1 wherein,

the end of the upper wrapping section (300) is provided with a connecting inclined plane so that the first direction forms an acute angle alpha with the conveying direction of the sorting line.

4. A method of supplying goods for a sorting machine according to any one of claims 1-3, comprising the steps of:

placing a first package on a first conveying mechanism of a package placing section (100), wherein the first package is conveyed at a first speed V1 along a first direction at a uniform speed;

a second transport mechanism of the weighing section (200) butts the first parcel in a first direction at a first speed V1;

the weighing mechanism of the weighing section (200) selects a weighing mode and weighs the first package, wherein the time required for weighing is T1;

after weighing is finished, the second transmission mechanism accelerates to a second speed V2, and the first package reaches the junction of the weighing section (200) and the package loading section (300) after being transmitted for a period of T2;

a third transport mechanism of the upper wrapping section (300) butts the first wrapping at a second speed V2 along a first direction;

after the first package is transmitted for a period of time T3 at a second speed V2, the third transmission mechanism accelerates to a third speed V3, and the first package reaches the junction of the package loading section (300) and the sorting line after being transmitted for a period of time T4 at the third speed V3;

the first package is placed on a first conveying mechanism of a package placing section (100), and the first package is conveyed at a first speed V1 along a first direction at a uniform speed, and specifically comprises the following steps:

placing the first parcel on the first conveyance mechanism;

judging whether a second package exists on the weighing section (200);

judging whether the second wrapping exists on the weighing section (200) or not through the detection mechanism (400): determining whether a second package is present on the weighing section (200) by comparing the sequence of the second time point and the fourth time point, and if the second time point is smaller than the fourth time point, the weighing section (200) is free of the second package; if the second time point is greater than or equal to the fourth time point, the second package is arranged on the weighing section (200);

or, judging whether the weighing section (200) has a second package or not by the detection mechanism (400) and a high-precision encoder arranged on the driving motors of the first transmission mechanism and the second transmission mechanism: the detection mechanism (400) is used for detecting the second package as a first time point, the detection mechanism (400) is used for detecting the first package as a second time point, a high-precision encoder is used for obtaining the distance S transmitted by the second transmission mechanism between the two time points, and if S is greater than the transmission length L2 of the weighing section (200), the weighing section (200) is free of the second package; if S is less than or equal to the transmission length L2 of the weighing section (200), the second package is arranged on the weighing section (200);

if yes, the first transmission mechanism stops transmission;

and if not, the first conveying mechanism conveys the first package at a constant speed V1 along a first direction.

5. A method of supplying goods according to claim 4, wherein the weighing means of the weighing section (200) selects the weighing mode and the weighing of the first package comprises the steps of:

judging whether a third package exists on the upper package section (300);

if so, the second transmission mechanism is decelerated to 0, and the weighing mechanism carries out static weighing on the first package;

if not, the second conveying mechanism continues to convey at the first speed V1, and the weighing mechanism dynamically weighs the first package.

6. A method of supplying goods according to claim 4, wherein the weighing means of the weighing section (200) selects the weighing mode and the weighing of the first package comprises the steps of:

the second conveying mechanism continues to convey at a first speed V1, and the weighing mechanism dynamically weighs the first package;

judging whether a third package exists on the upper package section (300);

if yes, the second transmission mechanism is decelerated to 0;

if not, the second transmission mechanism accelerates to a second speed V2 for transmission.

7. The method of claim 4, further comprising the steps of:

a detection mechanism (400) positioned at the joint of the bag placing section (100) and the weighing section (200) acquires the projection area and the center point of the first package;

the control mechanism selects a sorting trolley matched with the first package on a sorting line, and calculates the total duration T0 of the first package passing through the weighing section (200) and the package loading section (300);

wherein t0=s0/V0, S0 represents the distance of the sorting trolley to the upper package section (300), and V0 represents the conveying speed of the sorting trolley.

8. The method of claim 7, wherein the weighing means of the weighing section (200) selects a weighing mode and the weighing of the first package comprises the steps of:

judging whether the sorting trolley matched with the first package on the sorting line or not;

if yes, the second transmission mechanism continues to transmit at a first speed V1, and the weighing mechanism dynamically weighs the first package;

and if not, the second conveying mechanism is decelerated to 0, and the weighing mechanism is used for carrying out static weighing on the first package.

9. The method of claim 7, wherein the weighing means of the weighing section (200) selects a weighing mode and the weighing of the first package comprises the steps of:

the second conveying mechanism continues to convey at a first speed V1, and the weighing mechanism dynamically weighs the first package;

judging whether the sorting trolley matched with the first package on the sorting line or not;

if yes, the second transmission mechanism accelerates to a second speed V2 for transmission;

if not, the second transmission mechanism decelerates to 0.

Images