Package supply equipment and cross sorting system

Abstract

The present invention provides a package supply device and a cross-sorting system, which relate to the technical field of logistics equipment. The package supply device of the present invention can adjust the conveying speed of the first package pulling platform according to the target package loading speed of the package loading platform, thereby adjusting the distance between the first package and the second package, ensuring that the distance between the two adjacent packages on the package loading platform is an appropriate value, and then enabling the package loading platform to throw the target package on a suitable sorting platform of the sorting device when its conveying speed is within the working speed range, avoiding the situation where the two packages on the package loading platform occupy a sorting platform after loading due to the close distance between the two packages or there is an idle sorting platform between the two packages after loading due to the long distance between the two packages, and can take into account both sorting reliability and sorting efficiency. The cross-sorting system provided by the present invention includes the sorting device and the above-mentioned package supply device, and therefore also has corresponding beneficial effects.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics equipment, and in particular to a package supply device and a cross sorting system. Background Art

[0002] In the prior art, for the sorting system of sorting parcels, manual packing or traditional packing platform with fixed conveying speed is mostly used. For the cross sorting system with multiple sorting platforms, since the number of sorting platforms occupied by parcels is uncertain, the manual packing and traditional packing platform packing methods are prone to multiple parcels occupying one sorting platform, and the sorting platform is idle, which reduces the reliability and efficiency of the cross sorting system in sorting parcels. Summary of the invention

[0003] The purpose of the present invention includes providing a package supply device and a cross sorting system to improve the phenomenon that multiple packages easily occupy a sorting platform or the sorting platform is idle in the sorting system of the prior art, and to improve the reliability and efficiency of the cross sorting system in sorting packages.

[0004] The embodiments of the present invention can be implemented as follows:

[0005] In a first aspect, an embodiment of the present invention provides a package supply device for conveying packages along a set direction, the package supply device comprising a control device, a package loading platform, a first package pulling platform, a package loading motor connected to the package loading platform in a transmission manner, and a first package pulling motor connected to the first package pulling platform in a transmission manner, along the package conveying direction, the first package pulling platform and the package loading platform are sequentially arranged, the package loading motor is used to drive the package loading platform to convey the package, the first package pulling motor is used to drive the first package pulling platform to convey the package to the upper package platform, the package loading motor and the first package pulling motor are both electrically connected to the control device, and the control device is configured as follows:

[0006] Determine the target upload speed;

[0007] Control the loading platform to deliver packages at the target loading speed;

[0008] The conveying speed of the first bag pulling platform is adjusted according to the target bag loading speed, so that the distance between the first bag at the rear on the bag loading platform and the second bag at the front on the first bag pulling platform is within a preset first effective spacing range.

[0009] In an optional embodiment, the control device is specifically configured to adjust the conveying speed of the first bag pulling platform according to the target bag loading speed by the following method:

[0010] Calculate a first distance between the first package and the second package;

[0011] Determining whether the first distance is within a first valid spacing interval;

[0012] If the first distance is within the first effective spacing interval, the conveying speed of the first bag pulling platform is set to be consistent with the conveying speed of the bag loading platform;

[0013] If the first distance is not within the first valid spacing interval, determining whether the first distance is greater than an upper limit of the first valid spacing interval or less than a lower limit of the first valid spacing interval;

[0014] If the first distance is greater than the upper limit of the first effective spacing interval, the conveying speed of the first package pulling platform is set to be greater than the conveying speed of the upper package platform; if the first distance is less than the lower limit of the first effective spacing interval, the conveying speed of the first package pulling platform is set to be less than the conveying speed of the upper package platform.

[0015] In an optional embodiment, the control device is further configured to:

[0016] When the conveying speed of the first package pulling platform is inconsistent with that of the upper package platform, the status of the second package and the first distance between the first package and the second package are continuously obtained. When the second package is separated from the first package pulling platform or the first distance is within the first effective spacing interval, the conveying speed of the first package pulling platform is set to be consistent with the conveying speed of the upper package platform.

[0017] In an optional embodiment, the package supply device further includes a second package pulling platform and a second package pulling motor transmission-connected to the second package pulling platform, and along the package conveying direction, the second package pulling platform is located upstream of the first package pulling platform, and the second package pulling motor is electrically connected to the control device, and the control device is further configured as follows:

[0018] After adjusting the conveying speed of the first bag pulling platform, the conveying speed of the second bag pulling platform is adjusted according to the conveying speed of the first bag pulling platform, so that the distance between the third package at the back on the first bag pulling platform and the fourth package at the front on the second bag pulling platform is within the preset second effective spacing range.

[0019] In an optional embodiment, the control device is specifically configured to:

[0020] calculating a second distance between the third package and the fourth package;

[0021] Determine whether the second distance is within the second effective distance interval;

[0022] If the second distance is within the second effective spacing interval, the conveying speed of the second bag pulling platform is set to be consistent with the conveying speed of the first bag pulling platform;

[0023] If the second distance is not within the second effective spacing interval, determining whether the second distance is greater than an upper limit of the second effective spacing interval or less than a lower limit of the second effective spacing interval;

[0024] If the second distance is greater than the upper limit of the second effective spacing interval, the conveying speed of the second bag pulling platform is set to be greater than the conveying speed of the first bag pulling platform; if the second distance is less than the lower limit of the second effective spacing interval, the conveying speed of the second bag pulling platform is set to be less than the conveying speed of the first bag pulling platform.

[0025] In an optional implementation, the upper limit of the second effective spacing interval is smaller than the lower limit of the first effective spacing interval.

[0026] In an optional embodiment, the package supply device further includes a package unscrambling platform and a package unscrambling motor connected to the package unscrambling platform in a transmission manner. The package unscrambling platform is located upstream of the second package pulling platform along the package conveying direction. The package unscrambling platform is used to convey the packages to the second package pulling platform. The package unscrambling motor is electrically connected to the control device. The control device is configured to control the package unscrambling platform to convey the packages to the second package pulling platform at a first preset speed.

[0027] The control device is also configured to:

[0028] After adjusting the conveying speed of the second bag pulling platform, determining whether the conveying speed of the second bag pulling platform is less than the conveying speed of the bag unscrambling platform;

[0029] If the conveying speed of the second package pulling platform is lower than the conveying speed of the package unscrambling platform, the package unscrambling platform is controlled to suspend conveying packages.

[0030] In an optional embodiment, the control device is also configured to continuously obtain the status of the fourth package and the second distance between the third package and the fourth package when the conveying speed of the second package pulling platform is inconsistent with the conveying speed of the first package pulling platform, and set the conveying speed of the second package pulling platform to be consistent with the conveying speed of the first package pulling platform when the fourth package is separated from the second package pulling platform or the second distance is within the second effective spacing interval.

[0031] In an optional embodiment, a first detection mechanism is provided on a path for conveying packages on the upper packaging platform, and the first detection mechanism is electrically connected to a control device. The control device is specifically configured to determine a position of a target package on the upper packaging platform according to a signal output by the first detection mechanism, and to determine a target packaging speed according to the position of the target package, wherein the target package is the frontmost package on the upper packaging platform.

[0032] In a second aspect, an embodiment of the present invention provides a cross sorting system, comprising a sorting device and a package supply device of any one of the aforementioned embodiments, wherein the sorting device is located downstream of the package supply device along the package conveying direction, the sorting device comprises a driving mechanism, a circular track, and a plurality of sorting platforms arranged in sequence along the circular track, each sorting platform is used to receive packages conveyed by the package supply device, carry and transport the packages, and sort the packages to a target position, the sorting device also comprises a sorting controller and a position detection mechanism, the driving mechanism and the position detection mechanism are both electrically connected to the sorting controller, the sorting controller is configured to control the driving mechanism to drive the plurality of sorting platforms to move along the circular track at a second preset speed, and determine the motion parameters of the sorting platform according to the signal output by the position detection mechanism, and send the motion parameters of the sorting platform to the control device of the package supply device, the control device of the package supply device determines the target sorting platform and the target packaging speed according to the position of the target package and the motion parameters of the sorting platform, wherein the target packaging speed is a speed at which the target package can be conveyed to the target sorting platform, and the target package is the package located at the front on the packaging platform.

[0033] In an optional embodiment, the target sorting platform is the first sorting platform to receive the target package in the running direction of the sorting platform, and the control device of the package supply device determines the target sorting platform and the target package loading speed by the following method:

[0034] Determine an idle sorting platform that is closest to the last sorting platform carrying packages in the running direction of the sorting platform as a candidate sorting platform;

[0035] Calculate the time when the candidate sorting platform arrives at the parcel receiving position on the circular track, and calculate the theoretical speed that needs to be set for the packaging platform if the target parcel arrives at the parcel receiving position at this time, and determine whether the theoretical speed is within the working speed range of the packaging platform;

[0036] If the theoretical speed is within the working speed range of the packaging platform, the candidate sorting platform is determined as the target sorting platform, and the theoretical speed is determined as the target packaging speed; otherwise, the next idle sorting platform is determined as the candidate sorting platform, and the steps of "calculating the time when the candidate sorting platform arrives at the package receiving position on the circular track, and calculating the theoretical speed that needs to be set for the packaging platform if the target package arrives at the package receiving position at this time, and judging whether the theoretical speed is within the working speed range of the packaging platform" are repeated until the candidate sorting platform is determined as the target sorting platform and the calculated theoretical speed is determined as the target packaging speed.

[0037] The beneficial effects of the package supply equipment and cross sorting system provided by the embodiments of the present invention include:

[0038] The package supply device of the embodiment of the present invention can adjust the conveying speed of the first package pulling platform according to the target package loading speed, thereby adjusting the distance between the first package and the second package, ensuring that after the first package on the first package pulling platform arrives at the package loading platform, the distance between the two adjacent packages on the package loading platform is an appropriate value, so that the package loading platform can throw the target package on a suitable sorting platform of the sorting device when its conveying speed is within the working speed range, avoiding the situation that the two packages occupy one sorting platform after loading due to the close distance between the two packages on the package loading platform, or the situation that there is an idle sorting platform between the two packages after loading due to the long distance between the two packages, and taking into account both sorting reliability and sorting efficiency.

[0039] The cross sorting system provided by the embodiment of the present invention includes the above-mentioned package supply device. The package loading platform of the cross sorting system can deliver packages at a determined target package loading speed, so that the target package is delivered to the target sorting platform, thereby avoiding the phenomenon of multiple packages occupying a sorting platform and the sorting platform being idle, thereby improving the reliability and efficiency of the cross sorting system in sorting packages. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 A schematic diagram of a cross sorting system provided by an embodiment of the present invention;

[0042] Figure 2 A block diagram of the cross sorting system provided by an embodiment of the present invention;

[0043] Figure 3 A schematic diagram of a cross sorting system conveying packages provided in an embodiment of the present invention.

[0044] Icons: 010-cross sorting system; 100-sorting equipment; 110-circular track; 120-sorting platform; 130-driving mechanism; 140-sorting controller; 150-position detection mechanism; 200-package supply equipment; 210-package sorting table; 212-package sorting motor; 220-first package pulling table; 222-first package pulling motor; 230-second package pulling table; 232-second package pulling motor; 240-package loading table; 242-package loading motor; 244-first conveying component; 246-second conveying component; 250-first detection mechanism; 252-second detection mechanism; 254-third detection mechanism; 256-fourth detection mechanism; 260-control device; 300-target package; 310-first package; 320-second package; 330-third package; 340-fourth package. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0048] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0049] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0050] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0051] Figure 1 A schematic diagram of a cross sorting system provided by an embodiment of the present invention; Figure 2 This is a block diagram of the composition of the cross sorting system provided by the embodiment of the present invention. This embodiment provides a package supply device 200 and a cross sorting system 010 including the package supply device 200. Figure 1 and Figure 2 As shown, the cross sorting system 010 includes a sorting device 100 and a package supply device 200. Along the conveying direction of the packages, the sorting device 100 is located downstream of the package supply device 200, and is used to receive the packages conveyed by the package supply device 200, and to convey and sort the packages.

[0052] The sorting device 100 includes a circular track 110, a plurality of sorting platforms 120 arranged in sequence along the circular track 110, a driving mechanism 130, a position detection mechanism 150, and a sorting controller 140. The driving mechanism 130 is used to drive the sorting platform 120 to move along the circular track 110. Each sorting platform 120 is used to receive parcels conveyed by the package supply device 200, carry and transport the parcels, and sort the parcels to a target location. The driving mechanism 130 and the position detection mechanism 150 are both electrically connected to the sorting controller 140. The sorting controller 140 can control the driving mechanism 130 to drive the plurality of sorting platforms 120 to move along the circular track 110 at a certain speed, and can determine the motion parameters of the sorting platform 120 through the signal output by the position detection mechanism 150.

[0053] like Figure 1 As shown, the circular track 110 is vertically set up, that is, the sorting platform 120 on the circular track 110 moves circumferentially in a vertical plane. In other optional embodiments of the present invention, the circular track 110 can also extend circumferentially on a horizontal plane to form a loop. In this embodiment, a plurality of sorting platforms 120 are arranged in sequence on the circular track 110 and cover the entire circular track 110. Both sides of the circular track 110 are provided with bag drop openings. The sorting platform 120 has a moving mechanism. After the sorting platform 120 receives the package of the package supply device 200, the sorting controller 140 determines the bag drop opening corresponding to the package, that is, the target position, and after the sorting platform 120 moves to the target position corresponding to the package, the moving mechanism is controlled to move the package carried on the sorting platform 120 out of the sorting platform 120, thereby completing the sorting of the package. The moving mechanism may include a conveyor belt driven by a motor, and the package is moved out of the sorting platform 120 by the conveyor belt.

[0054] The package supply device 200 of the embodiment of the present invention includes a package sorting platform 210, a package sorting motor 212, a first package pulling platform 220, a first package pulling motor 222, a second package pulling platform 230, a second package pulling motor 232, a package loading platform 240, a package loading motor 242 and a control device 260. Along the package conveying direction, the package sorting platform 210, the second package pulling platform 230, the first package pulling platform 220 and the package loading platform 240 are arranged in sequence. The package sorting platform 210 is transmission-connected to the package sorting motor 212, the first package pulling platform 220 is transmission-connected to the first package pulling motor 222, the second package pulling platform 230 is transmission-connected to the second package pulling motor 232, and the package loading platform 240 is transmission-connected to the package loading motor 242. The package sorting motor 212, the first package pulling motor 222, the second package pulling motor 232 and the package loading motor 242 are all electrically connected to the control device 260, and each motor can be controlled to rotate, stop and adjust the speed. Therefore, the start and stop of the package sorting platform 210 , the first package pulling platform 220 , the second package pulling platform 230 , and the package loading platform 240 , as well as the speed of conveying packages, can be achieved by controlling the rotation speed of the corresponding motors through the control device 260 .

[0055] The upper packing platform 240 is used to convey the parcel to the sorting device 100, the first packing platform 220 is used to convey the parcel to the upper packing platform 240, the second packing platform 230 is used to convey the parcel to the first packing platform 220, and the packing platform 210 is used to convey the parcel to the second packing platform 230. Specifically, the packing platform 210, the second packing platform 230, the first packing platform 220 and the upper packing platform 240 all include a conveying component to complete the parcel conveying, wherein the conveying component may include a conveyor belt or a conveyor roller. Along the parcel conveying direction, the conveying component of the packing platform 210, the conveying component of the second packing platform 230, the conveying component of the first packing platform 220 and the upper packing platform 240 are arranged in sequence to form a conveying path for the parcel.

[0056] In this embodiment, the height of the upper packaging platform 240 is higher than the height of the bearing surface of the sorting platform 120, and the running track of the sorting platform 120 has a parcel receiving position for receiving the parcel thrown by the upper packaging platform 240. The upper packaging platform 240 specifically includes a first conveying assembly 244 and a second conveying assembly 246. Along the conveying direction of the parcel, the first conveying assembly 244 and the second conveying assembly 246 are arranged in sequence and both are connected to the upper packaging motor 242 in a transmission manner. The upper packaging motor 242 is configured to drive the first conveying assembly 244 and the second conveying assembly 246 to rotate synchronously. The first conveying assembly 244 and the second conveying assembly 246 respectively include conveyor belts for carrying and conveying parcels. A first detection mechanism 250 is provided on the path of the upper packaging platform 240 to convey the parcel, and the first detection mechanism 250 is electrically connected to the control device 260. The first detection mechanism 250 can be used to detect the length, position, etc. of the package. Specifically, the first detection mechanism 250 is used to detect whether the leading edge of the package reaches the detection position of the first detection mechanism 250 and whether the trailing edge of the package reaches the detection position of the first detection mechanism 250. The control device 260 can calculate the length of the package based on the detection result of the first detection mechanism 250, and determine the position of the package on the upper packaging platform 240 based on the detection result of the first detection mechanism 250 and the speed at which the conveying component of the upper packaging platform 240 conveys the package.

[0057] In this embodiment, along the package conveying direction, the first detection mechanism 250 is located between the first conveying assembly 244 and the second conveying assembly 246. Optionally, the first detection mechanism 250 includes a plurality of sensors disposed between the first conveying assembly 244 and the second conveying assembly 246. In the case where a package is located at the detection position of the first detection mechanism 250 and in the case where no package is located at the detection position of the first detection mechanism 250, the first detection mechanism 250 outputs different signals. The control device 260 determines whether a package is located at the detection position of the first detection mechanism 250 according to the signal output by the first detection mechanism 250, and determines whether the front edge of the package and the rear edge of the package reach the detection position of the first detection mechanism 250 accordingly. The control device 260 can determine the length of the package according to the time interval between the first time when the front edge of the package reaches the first detection mechanism 250 and the second time when the rear edge of the package reaches the first detection mechanism 250, and the conveying length of the second conveying assembly 246 within the time interval, and determines the position of the package on the second conveying assembly 246 according to the conveying length of the second conveying assembly 246 after the front edge of the package reaches the first detection mechanism 250. Optionally, the control device 260 determines the conveying length of the second conveying assembly 246 according to the rotation angle of the upper bag motor 242, thereby ensuring that the length and position of the package can be accurately determined even when the conveying speed of the upper bag platform 240 changes. Specifically, the upper bag platform 240 also includes an encoder that cooperates with the upper bag motor 242, and the rotation angle of the upper bag motor 242 is recorded by the number of pulses output by the encoder.

[0058] In an optional embodiment, the first detection mechanism 250 includes a first sensor and multiple second sensors, wherein the first sensor is a transmissive photoelectric sensor, and the second sensor is a reflective photoelectric sensor, and the light generator and the light receiver of the first sensor are relatively arranged on both sides of the upper packaging platform 240 along the width direction of the upper packaging platform 240 (i.e., in a direction perpendicular to the package conveying direction on the package conveying plane), and the light generator and the light receiver of the second sensor are both arranged on a mounting frame located between the first conveying component 244 and the second conveying component 246, and the multiple second sensors are arranged in sequence and spaced apart along the width direction of the upper packaging platform 240. When a package is located at the detection position of the first detection mechanism 250, the light receiver of the first sensor cannot receive the light generated by its light generator, and the light receiver of at least one second sensor can receive the light generated by its light generator reflected by the package; when no package is located at the detection position of the first detection mechanism 250, the light receiver of the first sensor can receive the light generated by its light generator, and the light receivers of all second sensors cannot receive the light generated by its light generator reflected by the package. Therefore, the first detection mechanism 250 outputs different signals when a package is located at the detection position of the first detection mechanism 250 and when no package is located at the detection position of the first detection mechanism 250. In another optional embodiment, the first detection mechanism 250 includes a plurality of third sensors, and the light generators and light receivers of the third sensors are relatively arranged on both sides of the package conveying path in the up and down directions. For example, one of the light generator and the light receiver of the third sensor is arranged on a mounting frame between the first conveying component 244 and the second conveying component 246, and the other of the light generator and the light receiver of the third sensor is arranged on a gantry bracket located above the mounting frame. When a package is located at the detection position of the first detection mechanism 250, the light receiver of at least one third sensor cannot receive the light emitted by its light generator. When no package is located at the detection position of the first detection mechanism 250, the light receivers of all the third sensors can receive the light emitted by the corresponding light generators. Therefore, the first detection mechanism 250 outputs different signals when a package is located at the detection position of the first detection mechanism 250 and when no package is located at the detection position of the first detection mechanism 250.

[0059] In this embodiment, since the first detection mechanism 250 is provided between the first conveying assembly 244 and the second conveying assembly 246, the control device 260 can determine the length of the package and the position of the package on the second conveying assembly 246 through the signal output by the first detection mechanism 250. Figure 1As shown, in order to determine the position of the package on the first conveying assembly 244, a second detection mechanism 252 may be provided between the first conveying assembly 244 and the first bag pulling platform 220; in order to determine the position of the package on the first bag pulling platform 220, a third detection mechanism 254 may be provided between the first bag pulling platform 220 and the second bag pulling platform 230; in order to determine the position of the package on the second bag pulling platform 230, a fourth detection mechanism 256 may be provided between the second bag pulling platform 230 and the bag unscrambling platform 210. The setting method and working principle of the second detection mechanism 252, the third detection mechanism 254 and the fourth detection mechanism 256 may all refer to the first detection mechanism 250, and will not be described in detail here.

[0060] Figure 3 This is a schematic diagram of a cross sorting system conveying parcels provided by an embodiment of the present invention. Figures 1 to 3 In this embodiment, the control device 260 of the package supply device 200 is configured to: determine a target package loading speed; control the package loading platform 240 to convey packages at the target package loading speed; and adjust the conveying speed of the first package pulling platform 220 according to the target package loading speed, so that the distance between the first package 310 located at the rear on the package loading platform 240 and the second package 320 located at the front on the first package pulling platform 220 is within a preset first effective spacing interval. The first effective spacing interval is obtained in advance through training or calculation, and the first effective spacing interval can satisfy: when the distance between two adjacent packages on the package loading platform 240 is within the first effective spacing interval, after the first package is thrown onto the sorting platform 120 of the sorting device 100, the second package can be thrown onto the next sorting platform 120 behind the last sorting platform 120 occupied by the first package by adjusting the conveying speed of the package loading platform 240.

[0061] Further, the control device 260 is configured to determine the position of the target package 300 on the upper packaging platform 240 according to the signal output by the first detection mechanism 250 each time after the upper packaging platform throws a package, and determine the target packaging speed according to the current position of the target package 300, wherein the target package 300 is the package located at the front of the upper packaging platform 240. Specifically, the control device 260 can determine the length of the target package according to the time interval between the front and rear edges of the target package reaching the first detection mechanism 250 and the conveying length of the second conveying component 246 within the time interval, and determine the position of the target package on the upper packaging platform 240 according to the conveying length of the second conveying component 246 after the target package reaches the first detection mechanism 250. For example, the control device 260 determines the position of the target package in real time according to the corresponding rotation angle of the upper packaging motor 242 after the target package reaches the first detection mechanism 250. By setting the first detection mechanism 250 between the first conveying component 244 and the second conveying component 246 that move synchronously, it can be ensured that when the package passes the detection position of the first detection mechanism 250, the movement speeds of the front and rear ends are the same, and the package is in a state of stable transportation, thereby ensuring the accuracy of the length and position of the package detected according to the signal output by the first detection mechanism 250.

[0062] Through this embodiment, the loading platform 240 can be controlled to transport the parcels at a determined target loading speed, so that the target parcel 300 is thrown onto the target sorting platform 120. Therefore, it is possible to avoid the phenomenon that multiple parcels occupy one sorting platform 120 or the sorting platform 120 is idle, thereby improving the reliability and efficiency of the cross sorting system 010 in sorting parcels. Furthermore, through this embodiment, the conveying speed of the first package pulling platform 220 can be adjusted according to the target package loading speed, thereby adjusting the distance between the first package 310 and the second package 320, ensuring that after the first package on the first package pulling platform 220 arrives at the packaging platform 240, the distance between the two adjacent packages on the packaging platform 240 is an appropriate value, so that the packaging platform 240 can throw the target package 300 onto a suitable sorting platform 120 of the sorting device 100 when its conveying speed is within the working speed range, avoiding the situation where the two packages on the packaging platform 240 occupy the same sorting platform 120 after packaging due to the close distance between the two packages, or the situation where there is an idle sorting platform 120 between the two packages after packaging due to the long distance between the two packages, and taking into account both sorting reliability and sorting efficiency.

[0063] Specifically, the control device 260 is configured to adjust the conveying speed of the first package pulling platform 220 according to the target package loading speed by the following method: calculating the first distance between the first package 310 and the second package 320, and determining whether the first distance is within the first effective spacing interval; if the first distance is within the first effective spacing interval, setting the conveying speed of the first package pulling platform 220 to be consistent with the conveying speed of the package loading platform 240; if the first distance is not within the first effective spacing interval, determining whether the first distance is greater than the upper limit of the first effective spacing interval or less than the lower limit of the first effective spacing interval; if the first distance is greater than the upper limit of the first effective spacing interval, setting the conveying speed of the first package pulling platform 220 to be greater than the conveying speed of the package loading platform 240; if the first distance is less than the lower limit of the first effective spacing interval, setting the conveying speed of the first package pulling platform 220 to be less than the conveying speed of the package loading platform 240. In this embodiment, the distance between the first package 310 and the second package 320 can be calculated by the positions of the first package 310 and the second package 320 obtained at the same time. For example, the control device 260 calculates the position of the first package 310 on the second conveying component 246 through the signal output by the second detection mechanism 252, and the control device 260 also calculates the position of the second package 320 on the first package pulling platform 220 through the signal output by the third detection mechanism 254, and then calculates the distance between the first package 310 and the second package 320 based on the positions of the two.

[0064] Furthermore, the control device 260 is also configured to: when the conveying speed of the first wrapping platform 220 is inconsistent with the conveying speed of the upper wrapping platform 240, continuously obtain the state of the second package 320 and the first distance between the first package 310 and the second package 320, and when the second package 320 is separated from the first wrapping platform 220 or the first distance is within the first effective spacing interval, set the conveying speed of the first wrapping platform 220 to be consistent with the conveying speed of the upper wrapping platform 240, wherein the state of the second package 320 includes not being separated from the first wrapping platform 220 and being separated from the first wrapping platform 220. After the second package 320 leaves the first package pulling platform 220, the distance between the package and the package in front of it can no longer be adjusted by adjusting the conveying speed of the first package pulling platform 220. Therefore, at this time, the conveying speed of the first package pulling platform 220 is set to be the same as the conveying speed of the upper package platform 240 to avoid changes in the distance between the newly determined first package 310 located at the back on the upper package platform 240 and the newly determined second package 320 located at the front on the first package pulling platform 220; when the first distance is within the first effective spacing interval, there is no need to adjust the distance between the first package 310 and the second package 320. Therefore, at this time, the conveying speed of the first package pulling platform 220 is set to be the same as the conveying speed of the upper package platform 240 to ensure that the distance between the first package 310 and the second package 320 is continuously within the first effective spacing interval.

[0065] In order to be able to adjust the distance between adjacent packages on the first wrapping platform 220 to an appropriate range, the control device 260 is further configured to: after adjusting the conveying speed of the first wrapping platform 220, adjust the conveying speed of the second wrapping platform 230 according to the conveying speed of the first wrapping platform 220, so that the distance between the third package 330 located at the back on the first wrapping platform 220 and the fourth package 340 located at the front on the second wrapping platform 230 is within a preset second effective spacing range.

[0066] Through this embodiment, the distance between the third package 330 and the fourth package 340 can be adjusted, so as to ensure that after the first package on the second package pulling platform 230 arrives on the first package pulling platform 220, the distance between the two adjacent packages on the first package pulling platform 220 is an appropriate value, so that when the conveying speed of the first package pulling platform 220 is adjusted according to the conveying speed of the upper package platform 240, the distance between the second package 320 on the first package pulling platform 220 and the first package 310 on the upper package platform 240 can be conveniently adjusted to within the first effective spacing interval. Similarly, the second effective spacing interval is obtained in advance through training or calculation. Further, the upper limit of the second effective spacing interval is less than the lower limit of the first effective spacing interval.

[0067] Similar to the adjustment method of the first distance, in order to make the distance between the third package 330 and the fourth package 340 within the preset second effective spacing interval, specifically, the control device 260 is configured to: calculate the second distance between the third package 330 and the fourth package 340; determine whether the second distance is within the second effective spacing interval; if the second distance is within the second effective spacing interval, set the conveying speed of the second package pulling platform 230 to be consistent with the conveying speed of the first package pulling platform 220; if the second distance is not within the second effective spacing interval, determine whether the second distance is greater than the upper limit of the second effective spacing interval or less than the lower limit of the second effective spacing interval; if the second distance is greater than the upper limit of the second effective spacing interval, set the conveying speed of the second package pulling platform 230 to be greater than the conveying speed of the first package pulling platform 220, and if the second distance is less than the lower limit of the second effective spacing interval, set the conveying speed of the second package pulling platform 230 to be less than the conveying speed of the first package pulling platform 220.

[0068] Through this embodiment, two adjacent packages can be pulled for the first time by adjusting the conveying speed of the second bag pulling platform 230, so that the distance between the two adjacent packages on the first bag pulling platform 220 and the second bag pulling platform 230 is a smaller and appropriate value. As the packages are conveyed, when the two adjacent packages are respectively located on the upper bag pulling platform 240 and the first bag pulling platform 220, if the distance between the two packages meets the requirements, there is no need to adjust the conveying speed of the first bag pulling platform 220. When the distance between the two packages cannot meet the requirements, the distance between the two packages is further adjusted by adjusting the conveying speed of the first bag pulling platform 220. By pulling the packages twice, gradual pulling can be achieved without making a large adjustment to the conveying speed of the conveying component of the package supply device 200, and the fineness of pulling the packages can be improved, so that the distance between the two adjacent packages finally maintains an appropriate value, and both sorting reliability and sorting efficiency can be taken into account.

[0069] Similarly, the control device 260 can also be configured to continuously obtain the state of the fourth package 340 and the second distance between the third package 330 and the fourth package 340 when the conveying speed of the second package pulling platform 230 is inconsistent with the conveying speed of the first package pulling platform 220, and set the conveying speed of the second package pulling platform 230 to be consistent with the conveying speed of the first package pulling platform 220 when the fourth package 340 is separated from the second package pulling platform 230 or the second distance is within the second effective spacing interval. The state of the fourth package 340 includes not being separated from the second package pulling platform 230 and being separated from the second package pulling platform 230.

[0070] Further, the control device 260 can control the bag unscrambling motor 212 to rotate at a preset speed, so that the bag unscrambling platform 210 conveys the bag to the second bag pulling platform 230 at a first preset speed. The control device 260 is also configured to: after adjusting the conveying speed of the second bag pulling platform 230, determine whether the conveying speed of the second bag pulling platform 230 is less than the conveying speed of the bag unscrambling platform 210; if it is determined that the conveying speed of the second bag pulling platform 230 is less than the conveying speed of the bag unscrambling platform 210, control the bag unscrambling platform 210 to suspend conveying the bag. By controlling the bag unscrambling platform 210 to suspend conveying the bag when the conveying speed of the second bag pulling platform 230 is less than the conveying speed of the bag unscrambling platform 210, it is possible to avoid the bag unscrambling platform 210 conveying the bag to the second bag pulling platform 230 from being piled up on the second bag pulling platform 230, thereby ensuring the reliability of the bag supply device 200. Further, after the conveying speed of the second package pulling station 230 is restored to be greater than the conveying speed of the package unscrambling station 210 , the control device 260 continues to control the package unscrambling station 210 to convey packages to the second package pulling station 230 .

[0071] Furthermore, in the present embodiment, the sorting controller 140 of the sorting device 100 is configured to control the driving mechanism 130 to drive the plurality of sorting platforms 120 to move along the circular track 110 at a second preset speed, and to determine the motion parameters of the sorting platform 120 according to the signal output by the position detection mechanism 150, and to send the motion parameters of the sorting platform 120 to the control device 260 of the packaging device 200. The control device 260 of the packaging device 200 determines the target sorting platform 120 and the target packaging speed according to the position of the target package on the packaging platform 240 and the motion parameters of the sorting platform 120, wherein the target packaging speed is a speed at which the target package 300 can be transported to the target sorting platform 120.

[0072] Specifically, the multiple sorting platforms 120 include a positioning sorting platform 120, and the position detection mechanism 150 of the sorting platform 120 includes an encoder set at the initial position of the circular track 110 and a detection member set on the positioning sorting platform 120. The sorting controller 140 determines that the positioning sorting platform 120 reaches the initial position when the detection member and the encoder of the positioning sorting platform 120 cooperate. The motion parameters of the sorting platform 120 sent by the sorting controller 140 to the control device 260 of the package supply device 200 include the number of pulses output by the encoder after the positioning sorting platform 120 reaches the initial position. The control device 260 of the package supply device 200 determines the position of the positioning sorting platform 120 based on the number of pulses output by the encoder after the positioning sorting platform 120 reaches the initial position, and determines the position of each sorting platform 120 according to the interval distance between each sorting platform 120 and the positioning sorting platform 120, thereby determining the target sorting platform 120 corresponding to the target package.

[0073] It should be noted that after the target package is thrown onto the sorting device 100, the target package may occupy one or more sorting platforms 120. In this embodiment, the target sorting platform 120 is the first sorting platform 120 that is to receive the target package 300 in the running direction of the sorting platform 120. The control device 260 of the package supply device 200 determines the target sorting platform 120 and the target package loading speed by the following method:

[0074] Determine an idle sorting platform 120 that is closest to the last sorting platform 120 carrying the package in the running direction of the sorting platform 120 as a candidate sorting platform 120;

[0075] Calculate the time when the candidate sorting platform 120 arrives at the package receiving position on the circular track 110, and calculate the theoretical speed that needs to be set for the upper packaging platform 240 if the target package 300 arrives at the package receiving position at this time, and determine whether the theoretical speed is within the working speed range of the upper packaging platform 240;

[0076] If the theoretical speed is within the working speed range of the packaging platform 240, the candidate sorting platform 120 is determined as the target sorting platform 120, and the theoretical speed is determined as the target packaging speed; otherwise, the next idle sorting platform 120 is determined as the candidate sorting platform 120, and the steps of "calculating the time when the candidate sorting platform 120 arrives at the package receiving position on the circular track 110, and calculating the theoretical speed that needs to be set for the packaging platform 240 if the target package 300 arrives at the package receiving position at this time, and judging whether the theoretical speed is within the working speed range of the packaging platform 240" are repeatedly executed until the candidate sorting platform 120 is determined as the target sorting platform 120 and the calculated theoretical speed is determined as the target packaging speed.

[0077] Specifically, the control device 260 determines the last sorting platform 120 occupied by the last package according to the length of the last package thrown to the sorting device 100, the target sorting platform 120 corresponding to the package, and the length of each sorting platform 120, and determines a sorting platform 120 behind the sorting platform 120 as an idle sorting platform 120 that is closest to the last sorting platform 120 carrying the package.

[0078] Through this embodiment, when the distance between the target package 300 and the previous package is too far, an idle sorting platform 120 can be allowed to appear between two adjacent packages thrown on the sorting device 100, ensuring that the loading platform 240 can transport the target package 300 to the sorting platform 120 of the sorting device 100 at a safe conveying speed, avoiding the package from tipping forward or backward due to the excessively fast conveying speed of the loading platform 240 when the loading platform 240 throws the package to the sorting platform 120 of the sorting device 100, thereby improving the reliability of loading.

[0079] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A package supply device, used for conveying packages to a sorting device along a set direction, the sorting device comprising a driving mechanism, a circular track and a plurality of sorting platforms arranged in sequence along the circular track, each of the sorting platforms being used for receiving packages conveyed by the package supply device, characterized in that: The package supply device comprises a control device, a package loading platform, a first package pulling platform, a package loading motor connected to the package loading platform in a transmission manner, and a first package pulling motor connected to the first package pulling platform in a transmission manner. The first package pulling platform and the package loading platform are arranged in sequence along the package conveying direction. The package loading motor is used to drive the package loading platform to convey the package. The first package pulling motor is used to drive the first package pulling platform to convey the package to the package loading platform. The package loading motor and the first package pulling motor are both electrically connected to the control device. The control device is configured as follows: Determine the target upload speed; Controlling the packing platform to convey the packages at the target packing speed; Adjusting the conveying speed of the first bag pulling platform according to the target bag loading speed, so that the distance between the first bag at the rear on the bag loading platform and the second bag at the front on the first bag pulling platform is within a preset first effective spacing interval; The first effective spacing interval has an upper limit and a lower limit, and the first effective spacing interval can satisfy: when the distance between two adjacent packages on the upper packaging platform is within the first effective spacing interval, after the first package is thrown onto the sorting platform of the sorting device, the second package can be thrown onto the next sorting platform behind the last sorting platform occupied by the first package by adjusting the conveying speed of the upper packaging platform; The package supply device further includes a second package pulling platform and a second package pulling motor transmission-connected to the second package pulling platform. Along the package conveying direction, the second package pulling platform is located upstream of the first package pulling platform. The second package pulling motor is electrically connected to the control device. The control device is further configured as follows: After adjusting the conveying speed of the first bag pulling platform, the conveying speed of the second bag pulling platform is adjusted according to the conveying speed of the first bag pulling platform, so that the distance between the third package at the back on the first bag pulling platform and the fourth package at the front on the second bag pulling platform is within a preset second effective spacing range.

2. The packaging equipment according to claim 1, characterized in that: The control device is specifically configured to adjust the conveying speed of the first bag pulling platform according to the target bag loading speed by the following method: calculating a first distance between the first package and the second package, Determining whether the first distance is within the first effective spacing interval; If the first distance is within the first effective spacing interval, the conveying speed of the first bag pulling platform is set to be consistent with the conveying speed of the bag loading platform; If the first distance is not within the first effective spacing interval, determining whether the first distance is greater than an upper limit of the first effective spacing interval or less than a lower limit of the first effective spacing interval; If the first distance is greater than the upper limit of the first effective spacing interval, the conveying speed of the first package pulling platform is set to be greater than the conveying speed of the upper package platform; if the first distance is less than the lower limit of the first effective spacing interval, the conveying speed of the first package pulling platform is set to be less than the conveying speed of the upper package platform.

3. The packaging equipment according to claim 2, characterized in that: The control device is also configured to: When the conveying speed of the first package pulling platform is inconsistent with the conveying speed of the upper package platform, the state of the second package and the first distance between the first package and the second package are continuously acquired; when the second package is separated from the first package pulling platform or the first distance is within the first effective spacing interval, the conveying speed of the first package pulling platform is set to be consistent with the conveying speed of the upper package platform.

4. The packaging equipment according to claim 1, characterized in that: The control device is specifically configured as follows: calculating a second distance between the third package and the fourth package; Determining whether the second distance is within the second effective spacing interval; If the second distance is within the second effective spacing interval, the conveying speed of the second bag pulling platform is set to be consistent with the conveying speed of the first bag pulling platform; If the second distance is not within the second effective spacing interval, determining whether the second distance is greater than an upper limit of the second effective spacing interval or less than a lower limit of the second effective spacing interval; If the second distance is greater than the upper limit of the second effective spacing interval, the conveying speed of the second package pulling platform is set to be greater than the conveying speed of the first package pulling platform; if the second distance is less than the lower limit of the second effective spacing interval, the conveying speed of the second package pulling platform is set to be less than the conveying speed of the first package pulling platform.

5. The packaging supply equipment according to claim 1 or 4, characterized in that: An upper limit of the second effective spacing interval is smaller than a lower limit of the first effective spacing interval.

6. The packaging equipment according to claim 1, characterized in that: The package supply equipment further comprises a package unscrambling platform and a package unscrambling motor connected to the package unscrambling platform in a transmission manner. Along the package conveying direction, the package unscrambling platform is located upstream of the second package pulling platform. The package unscrambling platform is used to convey packages to the second package pulling platform. The package unscrambling motor is electrically connected to the control device. The control device is configured to control the package unscrambling platform to convey packages to the second package pulling platform at a first preset speed. The control device is also configured to: After adjusting the conveying speed of the second bag pulling platform, determining whether the conveying speed of the second bag pulling platform is less than the conveying speed of the bag unscrambling platform; If the conveying speed of the second package pulling platform is lower than the conveying speed of the package unscrambling platform, the package unscrambling platform is controlled to suspend conveying packages.

7. The packaging equipment according to claim 1, characterized in that: A first detection mechanism is provided on the path for conveying the packages on the upper packaging platform, and the first detection mechanism is electrically connected to a control device. The control device is specifically configured to determine the position of a target package on the upper packaging platform according to a signal output by the first detection mechanism, and determine the target packaging speed according to the position of the target package, wherein the target package is the frontmost package on the upper packaging platform.

8. A cross sorting system, characterized in that: The invention comprises a sorting device and a package supply device according to any one of claims 1 to 7, wherein the sorting device is located downstream of the package supply device along the package conveying direction, the sorting device comprises a driving mechanism, a circular track and a plurality of sorting platforms sequentially arranged along the circular track, each of the sorting platforms being used to receive packages conveyed by the package supply device, carry and transport the packages and sort the packages to a target position, the sorting device further comprises a sorting controller and a position detection mechanism, the driving mechanism and the position detection mechanism are both electrically connected to the sorting controller, the sorting controller is configured to control the driving mechanism to drive the plurality of sorting platforms to move along the circular track at a second preset speed, and to determine the motion parameters of the sorting platform according to the signal output by the position detection mechanism, and to send the motion parameters of the sorting platform to the control device of the package supply device, the control device of the package supply device determines the target sorting platform and the target package loading speed according to the position of the target package and the motion parameters of the sorting platform, wherein the target package loading speed is a speed at which the target package can be conveyed to the target sorting platform, and the target package is the package located at the front on the package loading platform.

9. The cross sorting system according to claim 8, characterized in that: The target sorting platform is the first sorting platform to receive the target package in the running direction of the sorting platform. The control device of the package supply device determines the target sorting platform and the target package loading speed by the following method: Determine an idle sorting platform that is closest to the last sorting platform carrying packages in the running direction of the sorting platform as a candidate sorting platform; Calculate the time when the candidate sorting platform arrives at the package receiving position on the circular track, and calculate the theoretical speed that the upper packaging platform needs to be set to if the target package arrives at the package receiving position at the time, and determine whether the theoretical speed is within the working speed range of the upper packaging platform; If the theoretical speed is within the working speed range of the packaging platform, the candidate sorting platform is determined as the target sorting platform, and the theoretical speed is determined as the target packaging speed; otherwise, the next idle sorting platform is determined as the candidate sorting platform, and the steps of "calculating the time when the candidate sorting platform arrives at the package receiving position on the circular track, calculating the theoretical speed that the packaging platform needs to be set to if the target package arrives at the package receiving position at this time, and judging whether the theoretical speed is within the working speed range of the packaging platform" are repeatedly performed until the candidate sorting platform is determined as the target sorting platform and the calculated theoretical speed is determined as the target packaging speed.

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