T-shaped branch and confluence buffering and conveying system

Abstract

The invention provides a T-shaped flow dividing and converging buffering conveying system. The system comprises an inlet horizontal conveying channel, a vertical lifting conveying channel, a T-shaped flow dividing device, a buffering conveying channel, a buffer, a converging conveying channel and an electric control unit. The input end of the inlet horizontal conveying channel is connected with upstream rodlike material production equipment, and the output end is connected with a bottom input port of the vertical lifting conveying channel; a top output port of the vertical lifting conveying channel is connected with a lower connector of the T-shaped flow dividing device. A material inlet and outlet of the buffer is connected with a right interface of the T-shaped shunting device through a buffer conveying channel, and a left interface of the T-shaped shunting device is connected with an inlet of the confluence conveying channel through a conveying channel; a bottom outlet of the confluence conveying channel is connected with a downstream packaging machine; the electric control unit is installed on one side of the vertical lifting conveying channel and used for controlling the conveying channels to convey materials. Damage of the material distributing device to conveyed rod-shaped objects can be reduced, and the material distributing device can be in flexible butt joint with upstream equipment and downstream equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of material buffer transportation, and particularly relates to a T-shaped branch-confluence buffer transportation system. Background Art

[0002] In the process of cigarette packaging production and processing, the rod-shaped material buffer transportation device is an important component of the production line of the tipping and packaging process. Its main functions are twofold. One is the transportation function, which completes the transportation of rod-shaped materials between the cigarette making machine and the packaging machine. The other is the function of matching the production capacity of the upstream and downstream. When there is a mismatch in the production speed between the upstream cigarette making machine and the downstream packaging machine, or when one of them has a line failure and a short-term shutdown occurs, the rod-shaped material buffer transportation device can receive or release the rod-shaped materials on the production line in real time, so as to achieve the function of matching the production capacity of the upstream and downstream, ensure the normal operation of the production line, improve the effective operation rate of the equipment, and reduce material loss, etc.

[0003] A device for transporting and storing rod-shaped materials is disclosed in the patent with the application number CN 201810984732.7. In this material buffer transportation device, the materials provided by the upstream rod stock forming equipment are first lifted to a relatively high high-level channel for transportation. The cylindrical storage device is arranged between the rod stock forming equipment and the downstream packaging machine. And in order to save space, the cylindrical storage device is located below the high-level channel. The material diversion device in this device is of the F type. As Figure 1 shown in the figure, in the material diversion device of the prior art, the material inlet 100 for docking with the high-level transportation channel and the transportation port 200 for docking with the cylindrical storage device are respectively located on the upper and lower sides in the vertical direction. Then when the upstream rod stock forming equipment stops, if the cylindrical storage device needs to provide materials for the downstream packaging machine, when the materials are discharged to the left from the transportation port 200 of the cylindrical storage device, in order to keep the inside of the diversion device always filled with materials (if there are gaps in the transportation channel, the transported rod-shaped materials will be disordered and cannot be kept neat and orderly, and the downstream packaging machine cannot directly package), the materials transported to the left from the transportation port 200 will squeeze the materials at the bottom inside the vertical feeding section 300 of the diversion device, thereby damaging the rod-shaped materials and resulting in a decrease in the quality of the transported rod-shaped materials. Therefore, it is necessary to improve the design of the existing material buffer transportation device to solve the influence of the existing material diversion structure on the quality of the transported rod-shaped materials.

[0004] In addition, in the prior art, in order to achieve non-stop production of the upstream and downstream, the material branch and confluence speeds of the material buffer transportation device need to be manually debugged on site many times, and there is no guiding speed control scheme. Although the introduction of the material buffer transportation device can reduce the production shutdown phenomenon, how the material buffer transportation device can achieve the best flexible docking adjustment with the upstream and downstream equipment is still the content that the field is constantly researching. Summary of the Invention

[0005] In view of this, an embodiment of the present invention provides a T-shaped branch-confluence buffer conveying system, which is used to solve the problem that the material diversion device of the existing material buffer conveying device will damage the rod-shaped object, and at the same time provides a speed control scheme for each part of the conveying channel of the T-shaped branch-confluence buffer conveying system, so that the rod-shaped object is more precise during the conveying process and adapts to the upstream and downstream equipment with a flexible beat.

[0006] An embodiment of the present disclosure provides a T-shaped branch-confluence buffer conveying system, including: an inlet horizontal conveying channel, a vertical lifting conveying channel, a T-shaped diversion device, a buffer conveying channel, a buffer, a confluence conveying channel, and an electric control unit; The input end of the inlet horizontal conveying channel is connected to the upstream rod-shaped material production equipment, and the output end is connected to the bottom input port of the vertical lifting conveying channel. The inlet horizontal conveying channel has a horizontal first conveying surface for conveying materials; The top output port of the vertical lifting conveying channel is connected to the lower interface of the T-shaped diversion device. The vertical lifting conveying channel has two second conveying surfaces with a predetermined distance for clamping and lifting materials; The material inlet and outlet of the buffer are connected to the right interface of the T-shaped diversion device through the buffer conveying channel. The left interface of the T-shaped diversion device is connected to the inlet of the confluence conveying channel through a conveying channel; the left interface of the T-shaped diversion device has a horizontal third conveying surface for conveying materials to the left, and the right interface of the T-shaped diversion device has a horizontal fourth conveying surface for outputting materials to the right or inputting from the right. The buffer conveying channel has a fifth conveying surface for bidirectional conveying of materials; The bottom outlet of the confluence conveying channel is connected to the downstream packaging machine. The inlet of the confluence conveying channel has a horizontal seventh conveying surface for inwardly conveying materials; The electric control unit is installed on one side of the vertical lifting conveying channel; the electric control unit is used to control the inlet horizontal conveying channel, the vertical lifting conveying channel, the T-shaped diversion device, the buffer conveying channel, the buffer, and the confluence conveying channel to convey materials; The first conveying surface is lower than the fifth conveying surface, the third conveying surface and the fourth conveying surface are on the same horizontal plane, and the T-shaped branch-confluence buffer conveying system conveys the rod-shaped object in a state where the length direction is transverse to the conveying direction and parallel to the horizontal plane.

[0007] In some embodiments, the height values of the conveying channels of the T-shaped branch-confluence buffer conveying system are the same; wherein, the height values of the conveying channels of the T-shaped branch-confluence buffer conveying system are defined as: the dimension in the direction perpendicular to the conveying direction and perpendicular to the length direction of the rod-shaped object being conveyed within the conveying channel in a plane perpendicular to the conveying direction.

[0008] In some embodiments, the electronic control unit includes a main controller and a servo drive subsystem. Each component within the servo drive subsystem is connected to the main controller, and a control program for controlling the servo drive subsystem is pre-stored in the main controller. The servo drive subsystem includes: A first drive device, configured to control a first servo motor installed at the inlet horizontal conveying channel under the control of the main controller, so as to drive the first conveying surface to move through the first servo motor. A second drive device, configured to control a second servo motor installed at the vertical lifting conveying channel under the control of the main controller, so as to drive the second conveying surface to move through the second servo motor. A third drive device, configured to control a third servo motor installed at the bottom left end of the buffer conveying channel under the control of the main controller, so as to drive the fifth conveying surface to move leftward through the third servo motor. A fourth drive device, configured to control a fourth servo motor installed at the right interface at the bottom right end of the buffer conveying channel under the control of the main controller, so as to drive the fifth conveying surface to move rightward through the fourth servo motor. A fifth drive device, configured to control a fifth servo motor installed at the buffer conveying channel under the control of the main controller, so as to drive a transition conveyor belt installed between the right interface of the buffer conveying channel and the output interface of the buffer to move leftward / rightward through the fifth servo motor. A sixth drive device, configured to control a sixth servo motor installed within the buffer under the control of the main controller, so as to drive the buffer to convey materials outward / inward to cache materials through the sixth servo motor. A seventh drive device, configured to control a seventh servo motor installed within the confluence conveying channel under the control of the main controller, so as to drive the seventh conveying surface to move through the seventh servo motor.

[0009] In some embodiments, the T-shaped confluence buffer conveying system further includes: A first material level detector, installed at the inlet of the vertical lifting conveying channel, for real-time detecting the thickness value of the rod-shaped material layer at the inlet of the vertical lifting conveying channel and sending it to the main controller. The main controller calculates a first operating speed value based on a first formula according to the received thickness value of the rod-shaped material layer at the inlet of the vertical lifting conveying channel, and controls the operating speed value of the second servo motor to be the first operating speed value through the second drive device. Wherein, the first formula is:

[0010] In the above first formula, V l is the first operating speed value, d is the diameter of the predetermined rod-shaped object, H is the height value of the conveying channel of the T-shaped branch-confluence buffer conveying system, β 1 is the transmission gear ratio of the conveying mechanism driven by the second servo motor, V j is the operating speed of the rod-shaped material production equipment, k 1 is the first preset adjustment and correction coefficient, R 1 is the current detection value of the first level detector.

[0011] In some embodiments, the T-shaped branch-confluence buffer conveying system further includes: A second level detector, installed at the top inside the channel of the confluence conveying channel, for real-time detecting the thickness value of the rod-shaped material layer conveyed by the confluence conveying channel and sending it to the main controller; The main controller calculates a second operating speed value based on the second formula according to the thickness value of the rod-shaped material layer conveyed by the received confluence conveying channel, and controls the operating speed value of the seventh servo motor to be the second operating speed value through the seventh driving device; Wherein, the second formula is:

[0012] In the above second formula, V h is the second operating speed value, d is the diameter of the predetermined rod-shaped object, β 2 is the transmission gear ratio of the conveying mechanism driven by the seventh servo motor, V b is the operating speed of the packaging machine, p is the number of rod-shaped objects per package of the rod-shaped objects packaged by the predetermined downstream packaging machine, k 2 is the second preset adjustment and correction coefficient, R 3 is the current detection value of the second level detector.

[0013] In some embodiments, the main controller calculates a third operating speed value according to the third formula, and controls the operating speed value of the first servo motor to be the third operating speed value through the first driving device; Wherein, the third formula is:

[0014] In the above third formula, V q is the third operating speed value, dis the diameter of the predetermined rod-shaped object, H is the height value of the conveying channel of the T-shaped split-confluence buffer conveying system, β 3 is the transmission gear ratio of the conveying mechanism driven by the first servo motor, V j is the operating speed of the rod-shaped material production equipment, k 3 is the third preset adjustment and correction coefficient.

[0015] In some embodiments, the T-shaped split-confluence buffer conveying system further includes: A third level detector, installed at the inner top of the bin of the T-shaped splitting device, for real-time detecting the thickness value of the rod-shaped material layer in the bin of the T-shaped splitting device R 2 and sending it to the main controller; The main controller determines the current operating condition of the system based on the current first operating speed value V l and the second operating speed value V h and the thickness value of the rod-shaped material layer in the bin of the T-shaped splitting device R 2, determines the current operating condition of the system based on the preset operating condition determination rule, and controls the operating speed of the sixth servo motor through the sixth driving device according to the current operating condition of the system; Among them, the operating condition determination rule is: When ( V l > 10 pieces / minute) and ( V h ≤ 0 pieces / minute) and ( R 2 ≥ S f ) is the full-in splitting operation condition; among them, S f is the splitting level setting value; When ( V l ≤ 0 pieces / minute) and ( V h > 10 pieces / minute) and ( R 2 ≤ S h ) is the full-out confluence operation condition; among them, S h is the confluence level setting value; When ( V l - V h ) > S i and ( R 2 ≥ S f), it is a high-speed shunt differential compensation operation condition; among them, S i is a preset high-speed difference and low-speed difference boundary value; When ( V h - V l )> S i and ( R 2 ≤ S h ), it is a high-speed confluence differential compensation operation condition; When ( V l - V h )< S i and ( R 2 ≥ S f ), it is a low-speed shunt differential compensation operation condition; When ( V h - V l )< S i and ( R 2 ≤ S h ), it is a low-speed confluence differential compensation operation condition; When ( V h ≤ 10 / piece / minute) and ( V l ≤ 10 / piece / minute) and ( R 2 ≥ S f ), it is a full-stop shunt compensation operation condition; When ( V h ≤ 10 / piece / minute) and ( V l ≤ 10 / piece / minute) and ( R 2 ≤ S h ), it is a full-stop confluence compensation operation condition.

[0016] In some embodiments, controlling the operating speed of the sixth servo motor by the sixth driving device according to the operating condition of the current system includes: When the operating condition of the current system is a full-advance shunt operation condition, the main controller calculates a fourth operating speed value according to the fourth formula, and the fourth formula is: V 4 = ( Vl + R 2) × k 4 When the operating condition of the current system is the full-out confluence operating condition, the master controller calculates the fifth operating speed value according to the fifth formula, and the fifth formula is: V 5 = ( V h + R 2) × k 4 When the operating condition of the current system is the high-speed shunt differential compensation operating condition, the master controller calculates the sixth operating speed value according to the sixth formula, and the sixth formula is: V 6 = ( V l - V h + R 2) × k 4 When the operating condition of the current system is the high-speed confluence differential compensation operating condition, the master controller calculates the seventh operating speed value according to the seventh formula, and the seventh formula is: V 7 = ( V h – V l + R 2) × k 4 When the operating condition of the current system is the low-speed shunt differential compensation operating condition, the master controller calculates the eighth operating speed value according to the eighth formula, and the eighth formula is: V 8 = ( S i + R 2) × k 4 When the operating condition of the current system is the low-speed confluence differential compensation operating condition, the master controller calculates the ninth operating speed value according to the ninth formula, and the ninth formula is: V 9 = ( S i + R 2) × k 4 When the operating condition of the current system is the full-stop shunt compensation operating condition, the master controller calculates the tenth operating speed value according to the tenth formula, and the tenth formula is: V 10 = R 2 ×k 4 When the operating condition of the current system is the full-stop bus compensation operating condition, the main controller calculates the eleventh operating speed value according to the eleventh formula, and the eleventh formula is: V 11 = R 2× k 4 In the above fourth / fifth / sixth / seventh / eighth / ninth / tenth / eleventh formulas, V 4 to V 11 are the fourth operating speed value to the eleventh operating speed value in sequence, R 2 is the current detection value of the third level detector, k 4 is the fourth preset adjustment correction coefficient; Among them, when the main controller calculates the fourth / sixth / eighth / tenth operating speed value, it controls the operating speed value of the sixth servo motor through the sixth driving device to be the currently calculated fourth / sixth / eighth / tenth operating speed value, and controls the sixth servo motor to rotate forward so that the buffer stores materials inward; when the main controller calculates the fifth / seventh / ninth / eleventh operating speed value, it controls the operating speed value of the sixth servo motor through the sixth driving device to be the currently calculated fifth / seventh / ninth / eleventh operating speed value, and controls the sixth servo motor to rotate in reverse so that the buffer conveys materials outward; while controlling the sixth servo motor, the main controller also controls the fifth servo motor to move synchronously with the sixth servo motor through the fifth driving device.

[0017] In some embodiments, the T-shaped branch bus buffer conveying system further includes a buffer quantity detector, which is installed in the buffer and is used to detect the current buffer quantity of the buffer in real time and feed back the current buffer quantity to the main controller; The main controller is also used to judge whether the buffer is full according to the current buffer quantity when the second driving device starts the second servo motor; if so, it sends a prohibited operation prompt signal to the upstream rod-shaped material production equipment; otherwise, it sends an allowed operation prompt signal to the upstream rod-shaped material production equipment, and at the same time continuously monitors whether the current buffer quantity reaches the preset first buffer quantity, and sends a speed reduction prompt signal to the upstream rod-shaped material production equipment when the current buffer quantity reaches the preset first buffer quantity; The master controller is further configured to, when the sixth driving device starts the sixth servo motor, determine whether the buffer is empty according to the current buffer volume; if so, send a prohibited operation prompt signal to the downstream packaging machine; otherwise, send a permitted operation prompt signal to the downstream packaging machine, and at the same time continuously monitor whether the current buffer volume reaches a preset second buffer volume, and send a speed reduction prompt signal to the downstream packaging machine when the current buffer volume reaches the preset second buffer volume.

[0018] In some embodiments, the electric control unit further includes: a buffer operation control unit, a lifting operation control unit, a first human-machine operation terminal, and a second human-machine operation terminal; the first human-machine operation terminal is connected to the buffer operation control unit, and the second human-machine operation terminal is connected to the lifting operation control unit; The buffer operation control unit is communicatively connected to the master controller, and is configured to send the control instructions received by the first human-machine operation terminal for the third driving device, the fourth driving device, the fifth driving device, the sixth driving device, and the seventh driving device to the master controller; The lifting operation control unit is communicatively connected to the master controller, and is configured to send the control instructions received by the second human-machine operation terminal for the first driving device and the second driving device to the master controller.

[0019] The T-shaped branch-confluence buffer conveying system provided by the present invention first conveys the rod-shaped materials produced by the upstream equipment through the inlet horizontal conveying channel, and then directly docks with the T-shaped shunt device after being lifted through the vertical lifting conveying channel; the right interface of the T-shaped shunt device is connected to the buffer through the buffer conveying channel for two-way conveying, and the left interface is connected to the downstream packaging machine through the confluence conveying channel. The conveying planes of the left and right interfaces of the T-shaped shunt device are on the same horizontal plane. With such an improved design, there is no need for the high-position conveying channel in the prior art before the materials are branched and confluenced into the buffer. Therefore, the vertical feeding section (such as Figure 1 the vertical feeding section 300 in ) is cancelled in the shunt device. When the upstream rod-shaped material production equipment stops, the materials in the vertical lifting conveying channel are in a static state. The buffer inputs materials to the right interface of the T-shaped shunt device through the buffer conveying channel. These materials directly pass through the T-shaped shunt device horizontally and are output from the left interface of the T-shaped shunt device to the downstream packaging machine. During this process, the materials input into the T-shaped shunt device by the buffer conveying channel and the materials in the vertical lifting conveying channel are in different horizontal planes and will not cause extrusion to the materials in the vertical lifting conveying channel. Therefore, the problems existing in the prior art can be solved, and the quality of the conveyed rod-shaped materials can be improved. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the position of the material pressure conveyed by the material shunt device in the prior art; Figure 2 It is a schematic structural diagram of a T-shaped branch-confluence buffer conveying system provided by an embodiment of the present invention; Figure 3 It is a schematic diagram of the electric control system and network architecture of the T-shaped branch-confluence buffer conveying system provided by an embodiment of the present invention; Reference numerals: 1. Inlet horizontal conveying channel; 2. Vertical lifting conveying channel; 3. T-shaped shunt device; 4. Buffer conveying channel; 5. Buffer; 6. Confluence conveying channel; 7. Electric control unit; 8. Right interface; 9. Left interface; 10. First material level detector; 11. Third material level detector; 12. Second material level detector; 13. Buffer quantity detector; 14. Lifting operation control unit; 15. Buffer operation control unit; 16. Second human-machine operation terminal; 17. First human-machine operation terminal; 18. Master controller; U01. First driving device; U02. Second driving device; U03. Third driving device; U04. Fourth driving device; U05. Fifth driving device; U06. Sixth driving device; U07. Seventh driving device; U41. Buffer encoder; M01. First servo motor; M02. Second servo motor; M03. Third servo motor; M04. Fourth servo motor; M05. Fifth servo motor; M06. Sixth servo motor; M07. Seventh servo motor. Detailed implementation manners

[0022] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following further details the present invention in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] Figure 2 It is a schematic structural diagram of a T-shaped branch-confluence buffer conveying system provided by an embodiment of the present invention. The system includes: an inlet horizontal conveying channel 1, a vertical lifting conveying channel 2, a T-shaped shunt device 3, a buffer conveying channel 4, a buffer 5, a confluence conveying channel 6, and an electric control unit 7; where: The input end of the inlet horizontal conveying channel 1 is connected to the upstream rod-shaped material production equipment, and the output end is connected to the bottom input port of the vertical lifting conveying channel 2. The inlet horizontal conveying channel 1 has a horizontal first conveying surface for conveying materials; The top output port of the vertical lifting conveying channel 2 is connected to the lower interface of the T-shaped shunt device 3. The vertical lifting conveying channel 2 has two second conveying surfaces with a predetermined spacing for clamping and lifting materials; The material inlet and outlet of the buffer 5 are connected to the right interface 8 of the T-shaped shunt device 3 through the buffer conveying channel 4. The left interface 9 of the T-shaped shunt device 3 is connected to the inlet of the confluence conveying channel 6 through a conveying channel; the left interface 9 of the T-shaped shunt device 3 has a horizontal third conveying surface for conveying materials to the left, the right interface 8 of the T-shaped shunt device 3 has a horizontal fourth conveying surface for outputting materials to the right or inputting materials from the right, and the buffer conveying channel 4 has a fifth conveying surface for bidirectional conveying of materials; The bottom outlet of the confluence conveying channel 6 is connected to the downstream packaging machine. The inlet of the confluence conveying channel 6 has a horizontal seventh conveying surface for inwardly conveying materials; The electric control unit 7 is installed on one side of the vertical lifting conveying channel 2; the electric control unit 7 is used to control the inlet horizontal conveying channel 1, the vertical lifting conveying channel 2, the T-shaped shunt device 3, the buffer conveying channel 4, the buffer 5, and the confluence conveying channel 6 to convey materials; The first conveying surface is lower than the fifth conveying surface, the third conveying surface and the fourth conveying surface are at the same horizontal plane, and the T-shaped confluence buffer conveying system conveys the rod-shaped object in a state where the length direction is transverse to the conveying direction and parallel to the horizontal plane.

[0024] The T-shaped confluence buffer conveying system provided by the present invention first conveys the rod-shaped materials produced by the upstream equipment through the inlet horizontal conveying channel, and then directly docks with the T-shaped shunt device after lifting through the vertical lifting conveying channel; the right interface of the T-shaped shunt device is connected to the buffer through the bidirectional conveying buffer conveying channel, and the left interface is connected to the downstream packaging machine through the confluence conveying channel. The conveying planes of the left and right interfaces of the T-shaped shunt device are at the same horizontal plane. With such an improved design, there is no need for the high-position conveying channel in the prior art before the materials are confluenced into the buffer. Therefore, the vertical feeding section in the shunt device is cancelled (for example Figure 1In the vertical feeding section 300), when the upstream rod-shaped material production equipment stops, the materials in the vertical lifting and conveying channel are in a static state. The buffer feeds materials into the right interface of the T-shaped shunt device through the buffer conveying channel. These materials directly pass through the T-shaped shunt device horizontally and are output from the left interface of the T-shaped shunt device to the downstream packaging machine. During this process, the materials input into the T-shaped shunt device by the buffer conveying channel and the materials in the vertical lifting and conveying channel are in different horizontal planes and will not cause extrusion to the materials in the vertical lifting and conveying channel. Therefore, the problems existing in the prior art can be solved, and the quality of the conveyed rod-shaped materials can be improved.

[0025] Preferably, the height values of the conveying channels of the T-shaped confluence and buffer conveying system are the same; wherein, the height values of the conveying channels of the T-shaped confluence and buffer conveying system are defined as: the dimension in the plane perpendicular to the conveying direction inside the conveying channel and in the direction perpendicular to the length direction of the conveyed rod-shaped object.

[0026] The electronic control unit 7 of the present invention includes a main controller and a servo drive subsystem. Each component in the servo drive subsystem is connected to the main controller, and a control program for controlling the servo drive subsystem is pre-stored in the main controller. Figure 3 It is a schematic diagram of the electronic control system and network architecture of the T-shaped confluence and buffer conveying system provided by the embodiment of the present invention, as Figure 3 shown in, the servo drive subsystem of the electronic control unit 7 includes: The first driving device U01 is used to control the first servo motor M01 installed at the entrance horizontal conveying channel 1 under the control of the main controller 18, so as to drive the first conveying surface to move through the first servo motor M01; The second driving device U02 is used to control the second servo motor M02 installed at the vertical lifting and conveying channel 2 under the control of the main controller 18, so as to drive the second conveying surface to move through the second servo motor M02; The third driving device U03 is used to control the third servo motor M03 installed at the bottom left end of the buffer conveying channel 4 under the control of the main controller 18, so as to drive the fifth conveying surface to move leftward through the third servo motor M03. At this time, the buffer conveying channel 4 is used to converge the materials output by the buffer 5 to the T-shaped shunt device 3; The fourth driving device U04 is used to control the fourth servo motor M04 installed at the bottom right end of the buffer conveying channel 4 under the control of the main controller 18, so as to drive the fifth conveying surface to move rightward through the fourth servo motor M04. At this time, the buffer conveying channel 4 is used to divert the materials output from the right interface 8 of the T-shaped shunt device 3 into the buffer 5 for storage; The fifth driving device U05 is used to control the fifth servo motor M05 installed at the buffer conveying channel 4 under the control of the main controller 18, so as to drive the transition conveyor belt installed between the right-end interface of the buffer conveying channel 4 and the output interface of the buffer 5 to move left / right through the fifth servo motor M05; wherein, when the buffer conveying channel 4 needs to converge the materials output by the buffer 5 to the T-shaped splitting device 3, the fifth servo motor M05 drives the transition conveyor belt installed between the right-end interface of the buffer conveying channel 4 and the output interface of the buffer 5 to move left, and when the buffer conveying channel 4 needs to split the materials output from the right-side interface 8 of the T-shaped splitting device 3 into the buffer 5 for storage, the fifth servo motor M05 drives the transition conveyor belt installed between the right-end interface of the buffer conveying channel 4 and the output interface of the buffer 5 to move right. Preferably, a belt conveying method is adopted for the transition between the right-end interface of the buffer conveying channel 4 and the output interface of the buffer 5, which can minimize the volume of the transition conveying mechanism between the two.

[0027] The sixth driving device U06 is used to control the sixth servo motor M06 installed in the buffer 5 under the control of the main controller 18, so as to drive the buffer 5 to convey materials out / buffer materials in through the sixth servo motor M06; The seventh driving device U07 is used to control the seventh servo motor M07 installed in the converging conveying channel 6 under the control of the main controller 18, so as to drive the seventh conveying surface to move through the seventh servo motor M07.

[0028] Preferably, the network structure of the electronic control unit 7 is a network architecture with the main controller 18 as the master station, the driving devices U01~U07 of the servo drive subsystem, and the buffer encoder U41 as the slave stations. The master station and the slave stations communicate and access through the EtherCAT bus.

[0029] In some embodiments, such as Figure 2As shown in the figure, the electronic control unit 7 further includes: a buffer operation control unit 15, a lifting operation control unit 14, a first human-machine operation terminal 17, and a second human-machine operation terminal 16; the first human-machine operation terminal 17 is connected to the buffer operation control unit 15, and the second human-machine operation terminal 16 is connected to the lifting operation control unit 14; the buffer operation control unit 15 is communicatively connected to the main controller 18, and the buffer operation control unit 15 is configured to send the relevant control instructions received by the first human-machine operation terminal 17 from the user for the T-shaped shunt device 3, the buffer conveying channel 4, the buffer 5, and the confluence conveying channel 6 to the main controller 18; the lifting operation control unit 14 is communicatively connected to the main controller 18, and the lifting operation control unit 14 is configured to send the relevant control instructions received by the second human-machine operation terminal 16 from the user for the inlet horizontal conveying channel 1 and the vertical lifting conveying channel 2 to the main controller 18. Specifically, the buffer operation control unit 15 sends the control instructions received by the first human-machine operation terminal 17 for the third driving device U03, the fourth driving device U04, the fifth driving device U05, the sixth driving device U06, and the seventh driving device U07 to the main controller 18; the lifting operation control unit 14 sends the control instructions received by the second human-machine operation terminal 16 for the first driving device U01 and the second driving device U02 to the main controller 18.

[0030] Preferably, the first human-machine operation terminal 17 and the second human-machine operation terminal 16 are desktop application programs developed based on the Windows system, with Microsoft Visual Studio 2022 software as the development platform and C# as the programming language.

[0031] Since the T-shaped confluence buffer conveying system provided by the present invention involves the conveying control of multiple material conveying channels and buffers, in actual production, in order to keep the production line running without stopping, it is necessary to accurately control the material conveying speed of each material conveying channel in the T-shaped confluence buffer conveying system to achieve the matching of the production speed of this system with the upstream and downstream equipment, and ensure that the speeds of the internal conveying channels of this system are adapted to each other, so as to avoid material jams or emptying of materials. This embodiment provides a control method based on the T-shaped confluence buffer conveying system. This method is based on parameters such as the upstream and downstream production speeds, the height values of the conveying channels of the device, the mechanical transmission ratio of the device, the material layer thickness at each preset node of the device, and the characteristics of the rod-shaped objects (such as diameter), calculates the operating reference speeds of each conveying channel, and then combines the material layer thickness values at the preset nodes of the device according to the reference speeds to judge the real-time operating conditions for the process of T-shaped confluence. The following specifically describes the speed control method of each conveying channel (corresponding to the servo motor) in the T-shaped confluence buffer conveying system provided by the present invention.

[0032] In some embodiments, the T-shaped confluence buffer conveying system of the present invention further includes a first level detector 10, such asFigure 2 As shown in Figure 2 , the first material level detector 10 is installed at the entrance of the vertical lifting and conveying channel 2, and is used to detect in real time the thickness value of the rod-shaped material layer at the entrance of the vertical lifting and conveying channel 2 and send it to the main controller 18. In these embodiments, based on the received thickness value of the rod-shaped material layer at the entrance of the vertical lifting and conveying channel 2, the main controller 18 calculates the first operating speed value according to the first formula, and controls the operating speed value of the second servo motor M02 through the second driving device U02 to be the first operating speed value; Among them, the first formula is:

[0033] In the above first formula, V l is the first operating speed value, d is the predetermined diameter of the rod-shaped object, H is the height value of the conveying channel of the T-shaped branch and confluence buffer conveying system, β 1 is the transmission gear ratio of the conveying mechanism driven by the second servo motor M02, V j is the operating speed of the rod-shaped material production equipment, k 1 is the first preset adjustment and correction coefficient, R 1 is the current detection value of the first material level detector 10.

[0034] In some embodiments, the T-shaped branch and confluence buffer conveying system of the present invention further includes a second material level detector 12. As shown in Figure 2 , the second material level detector 12 is installed at the inner top of the channel of the confluence conveying channel 6, and is used to detect in real time the thickness value of the rod-shaped material layer conveyed by the confluence conveying channel 6 and send it to the main controller 18. In these embodiments, based on the received thickness value of the rod-shaped material layer conveyed by the confluence conveying channel 6, the main controller 18 calculates the second operating speed value according to the second formula, and controls the operating speed value of the seventh servo motor M07 through the seventh driving device U07 to be the second operating speed value; Figure 2 Among them, the second formula is: Among them, the second formula is:

[0035] In the above second formula, V h is the second operating speed value, d is the predetermined diameter of the rod-shaped object, β 2 is the transmission gear ratio of the conveying mechanism driven by the seventh servo motor M07, V b is the operating speed of the packaging machine, p is the number of rod-shaped objects per package packed by the predetermined downstream packaging machine, k 2 is the second preset adjustment and correction coefficient, R3 is the current detection value of the second material level detector 12.

[0036] In some embodiments, the main controller 18 calculates the third operating speed value according to the third formula, and controls the operating speed value of the first servo motor M01 through the first driving device U01 to be the third operating speed value; Among them, the third formula is:

[0037] In the above third formula, V q is the third operating speed value, d is the predetermined diameter of the rod-shaped object, H is the height value of the conveying channel of the T-shaped branch-confluence buffer conveying system, β 3 is the transmission gear ratio of the conveying mechanism driven by the first servo motor M01, V j is the operating speed of the rod-shaped material production equipment, k 3 is the third preset adjustment and correction coefficient.

[0038] In some embodiments, the T-shaped branch-confluence buffer conveying system of the present invention further includes a third material level detector 11. As Figure 2 shown in, the third material level detector 11 is installed on the inner top of the bin of the T-shaped shunt device 3 for real-time detection of the thickness value of the rod-shaped material layer in the bin of the T-shaped shunt device 3 R 2 and send it to the main controller 18. In these embodiments, the main controller 18 based on the current first operating speed value V l , the second operating speed value V h and the thickness value of the rod-shaped material layer in the bin of the T-shaped shunt device 3 R 2, determines the operating condition of the current system based on the preset operating condition determination rule, and controls the operating speed of the sixth servo motor M06 through the sixth driving device U06 according to the operating condition of the current system; Among them, the operating condition determination rule is: When ( V l > 10 pieces / minute) and ( V h ≤ 0 pieces / minute) and ( R 2 ≥ S f ), it is a full-inlet shunt operation condition. In this condition, the upstream rod-shaped material production equipment is running but the downstream packaging machine is stopped, and the buffer 5 needs to store all the rod-shaped materials from the upstream; among them, S f is the shunt material level set value; When (V l ≤0 sticks / min) and ( V h > 10 sticks / min) and ( R 2 ≤ S h ) it is the full-out confluence operation condition. In this condition, the upstream rod-shaped material production equipment is stopped but the downstream packaging machine is running, and the rod-shaped materials required downstream are completely provided by the buffer 5; where, S h is the confluence material level set value; When ( V l - V h ) > S i and ( R 2 ≥ S f ) it is the high-speed shunt differential compensation operation condition. In this condition, the upstream rod-shaped material production equipment and the downstream packaging machine are both running online at high speed, but the running speed of the rod-shaped material production equipment is higher than that of the packaging machine. The T-shaped shunt device 3 is required to shunt the rod-shaped materials from the upstream at high speed and store part of them in the buffer 5; where, S i is the preset boundary value between high-speed difference and low-speed difference; When ( V h - V l ) > S i and ( R 2 ≤ S h ) it is the high-speed confluence differential compensation operation condition. In this condition, the rod-shaped material production equipment and the packaging machine are both running online at high speed, but the running speed of the rod-shaped material production equipment is lower than that of the packaging machine. Part of the rod-shaped materials required downstream are provided to the downstream after being confluenced at the T-shaped shunt device 3 by the high-speed output from the buffer 5; When ( V l - V h ) < S i and ( R 2 ≥ S f ) it is the low-speed shunt differential compensation operation condition. In this condition, the rod-shaped material production equipment and the packaging machine are both running online at low speed, but the running speed of the rod-shaped material production equipment is higher than that of the packaging machine. The T-shaped shunt device 3 is required to shunt the rod-shaped materials from the upstream at high speed and store part of them in the buffer 5; When (V h - V l ) < S i and ( R 2 ≤ S h ), it is the low-speed confluence differential compensation operation condition. In this condition, the rod-shaped material production equipment and the packaging machine are both running online at low speed, but the running speed of the rod-shaped material production equipment is lower than that of the packaging machine. Part of the rod-shaped material required downstream is slowly output from the buffer 5 to the T-shaped shunt device 3 for confluence and then provided to the downstream; When ( V h ≤ 10 / branch / minute) and ( V l ≤ 10 / branch / minute) and ( R 2 ≥ S f ), it is the full-stop shunt compensation operation condition. In this condition, both the rod-shaped material production equipment and the packaging machine are in a stopped state. Since R 2 ≥ S f , to prevent the silo from being blocked, at this time, the T-shaped shunt device 3 shunts and conveys a small amount of rod-shaped objects in the channel to the buffer 5 for storage; When ( V h ≤ 10 / branch / minute) and ( V l ≤ 10 / branch / minute) and ( R 2 ≤ S h ), it is the full-stop confluence compensation operation condition. In this condition, both the rod-shaped material production equipment and the packaging machine are in a stopped state. Since R 2 ≤ S h , to prevent the silo from being emptied, at this time, the buffer 5 outputs a small amount of material to the T-shaped shunt device 3 for confluence.

[0039] Preferably, after determining the operating condition of the current system based on the preset operating condition determination rule, according to the operating condition of the current system, the method of controlling the operating speed of the sixth servo motor M06 by the sixth driving device U06 is as follows: When the operating condition of the current system is the full-in shunt operation condition, the main controller 18 calculates the fourth operating speed value according to the fourth formula. The fourth formula is: V 4 = ( V l + R 2) × k 4 When the operating condition of the current system is the full-out confluence operating condition, the main controller 18 calculates the fifth operating speed value according to the fifth formula, and the fifth formula is: V 5 = ( V h + R 2) × k 4 When the operating condition of the current system is the high-speed shunt differential compensation operating condition, the main controller 18 calculates the sixth operating speed value according to the sixth formula, and the sixth formula is: V 6 = ( V l - V h + R 2) × k 4 When the operating condition of the current system is the high-speed confluence differential compensation operating condition, the main controller 18 calculates the seventh operating speed value according to the seventh formula, and the seventh formula is: V 7 = ( V h – V l + R 2) × k 4 When the operating condition of the current system is the low-speed shunt differential compensation operating condition, the main controller 18 calculates the eighth operating speed value according to the eighth formula, and the eighth formula is: V 8 = ( S i + R 2) × k 4 When the operating condition of the current system is the low-speed confluence differential compensation operating condition, the main controller 18 calculates the ninth operating speed value according to the ninth formula, and the ninth formula is: V 9 = ( S i + R 2) × k 4 When the operating condition of the current system is the full-stop shunt compensation operating condition, the main controller 18 calculates the tenth operating speed value according to the tenth formula, and the tenth formula is: V 10 = R 2 × k 4 When the operating condition of the current system is the full-stop converging compensation operating condition, the main controller 18 calculates the eleventh operating speed value according to the eleventh formula, and the eleventh formula is: V 11 = R 2× k 4 In the above fourth / fifth / sixth / seventh / eighth / ninth / tenth / eleventh formulas, V 4 to V 11 are respectively the fourth operating speed value to the eleventh operating speed value calculated under various operating conditions, R 2 is the current detection value of the third level detector 11, k 4 is the fourth preset adjustment correction coefficient; among them, when the main controller 18 calculates the fourth / sixth / eighth / tenth operating speed value, it controls the operating speed value of the sixth servo motor M06 through the sixth driving device U06 to be the currently calculated fourth / sixth / eighth / tenth operating speed value, and controls the sixth servo motor M06 to rotate forward to make the buffer 5 buffer materials inward; when the main controller 18 calculates the fifth / seventh / ninth / eleventh operating speed value, it controls the operating speed value of the sixth servo motor M06 through the sixth driving device U06 to be the currently calculated fifth / seventh / ninth / eleventh operating speed value, and controls the sixth servo motor M06 to rotate in reverse to make the buffer 5 convey materials outward; while controlling the sixth servo motor M06, the main controller 18 also controls the fifth servo motor M05 to move synchronously with the sixth servo motor M06 through the fifth driving device U05.

[0040] It should be noted that in the above first formula to the eleventh formula, after all physical parameters adopt the preset standard units, only the numerical values of each physical quantity (without substituting the units) are taken for calculation. Among them, the preset standard units of each physical parameter are: the unit of the operating speed is "pieces / minute", the unit of the diameter of the rod-shaped object is "mm" (millimeter), the unit of the height of the conveying channel is "mm" (millimeter), the unit of the thickness value of the rod-shaped material layer is "mV" (millivolt), S f and S h The unit of is "mV" (millivolt), S i The unit of is "pieces / minute".

[0041] Further, when the current working condition is any one of the shunt working conditions, the main controller 18 controls the electronic gear ratio of the third servo motor M03 to be 1:1.2, and at the same time controls the electronic gear ratio of the fourth servo motor M04 to be 1:1, and the third servo motor M03 performs overrunning operation. When the current working condition is any one of the confluence working conditions, the main controller 18 controls the electronic gear ratio of the third servo motor M03 to be 1:1, and at the same time controls the electronic gear ratio of the fourth servo motor M04 to be 1:1.2, and the fourth servo motor M04 performs overrunning operation.

[0042] In some other preferred embodiments, as Figure 2 shown in, the T-shaped branch-confluence buffer conveying system of the present invention further includes a buffer quantity detector 13, which is installed in the buffer 5 and is used to detect the current buffer quantity of the buffer 5 in real time and feed back the current buffer quantity to the main controller 18; the main controller 18 performs flexible beat control on the upstream rod-shaped material production equipment or the downstream packaging machine according to the current buffer quantity, so as to further improve the adaptive matching degree between the T-shaped branch-confluence buffer conveying system and the upstream and downstream production rhythms.

[0043] Among them, the flexible beat control of the upstream rod-shaped material production equipment is as follows: when the main controller 18 starts the second servo motor M02 in the second driving device U02 (that is, when the lifting operation control unit 14 enters the self-start state), it judges whether the buffer 5 is full according to the current buffer quantity; if so, it sends a prohibited operation prompt signal to the upstream rod-shaped material production equipment; otherwise, it sends an allowed operation prompt signal to the upstream rod-shaped material production equipment, and at the same time continuously monitors whether the current buffer quantity reaches a preset first buffer quantity, and when the current buffer quantity reaches the preset first buffer quantity, it sends a speed reduction prompt signal to the upstream rod-shaped material production equipment; The flexible beat control of the downstream packaging machine: when the main controller 18 starts the sixth servo motor M06 in the sixth driving device U06 (that is, when the buffer operation control unit 15 enters the self-start state), it judges whether the buffer 5 is empty according to the current buffer quantity; if so, it sends a prohibited operation prompt signal to the downstream packaging machine; otherwise, it sends an allowed operation prompt signal to the downstream packaging machine, and at the same time continuously monitors whether the current buffer quantity reaches a preset second buffer quantity, and when the current buffer quantity reaches the preset second buffer quantity, it sends a speed reduction prompt signal to the downstream packaging machine.

[0044] Preferably, the buffer quantity detector 13 is an incremental absolute encoder, which detects the rotation range of the buffer 5 in real time, and feeds back the real-time range value of the buffer 5 to the main controller 18 through the EtherCAT bus communication method. The main controller 18 then converts the real-time range value of the buffer 5 into a percentage through a preset program as the current buffer quantity.

[0045] The working process of the T-shaped branch-confluence buffer conveying system provided by the present invention is as follows: Step 1. System initialization: When the system is powered on for the first time, the main controller 18 starts a soft start, executes relevant programs according to the code structure, and automatically runs the form application program at the same time. Each servo driver enters the ready state.

[0046] Step 2. System self-diagnosis: Check whether the communication of each sub-station is normal and whether the device hardware is ready. Through the self-diagnosis function, the fault point of the device can be accurately located and the corresponding handling method can be given.

[0047] Step 3. System operation mode selection: It is divided into automatic mode and manual mode.

[0048] Among them, the automatic mode is applied to the normal production process of the cigarette wrapping line. In the automatic mode, the start priority level of the buffer operation control unit 15 is the highest, followed by the start of the lifting operation control unit 14. The manual mode is applied to device debugging and maintenance, and can realize single-machine point motion and large-component linkage. In the manual mode, the start priority level of the buffer operation control unit 15 is the highest, followed by the start of the lifting operation control unit 14.

[0049] Step 4. Receive the start button signal Among them, the stop button has the highest priority level. In any state, when the stop button is pressed, the device stops running and enters the stop state; the reset button is the second. In the stop state, the device should first reset the state through the reset function. After the reset is successful, the start button is triggered, and the device enters the start standby mode.

[0050] Step 5. System operation: If the start button signal in the automatic mode is received in the previous steps, the system enters the automatic operation program. If the start button signal in the manual mode is received in the previous steps, the system enters the single-machine manual operation program. After entering the automatic operation program, that is, the main controller 18 calculates the above various running speed values and controls each motor, and at the same time realizes the flexible beat control of the upstream cigarette machine and the flexible beat control process of the downstream packaging machine.

[0051] During the initial stage of self-diagnosis in Step 2 and the real-time operation process in Step 5, if the system monitors an abnormality or a fault, the system automatically enters the stop state and needs to be reset successfully through the reset button before entering the subsequent process.

[0052] In addition, an emergency mode is also set in this system, which is mainly divided into the device emergency stop operation mode and the buffer extreme position emergency mode. The emergency stop operation function is mainly used for emergency shutdown when an emergency occurs during the operation or debugging of the device. The buffer extreme position emergency function is mainly to protect the buffer. When the running position of the buffer exceeds the limit, the emergency function is triggered to stop the device from running.

[0053] As described above, it is only the specific implementation manner 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 those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A T-shaped branch and confluence buffer conveying system, characterized in that, Including: An inlet horizontal conveying channel (1), a vertical lifting conveying channel (2), a T-shaped shunt device (3), a buffer conveying channel (4), a buffer (5), a confluence conveying channel (6), and an electric control unit (7); The input end of the inlet horizontal conveying channel (1) is connected to the upstream rod-shaped material production equipment, and the output end is connected to the bottom input port of the vertical lifting conveying channel (2). The inlet horizontal conveying channel (1) has a horizontal first conveying surface for conveying materials; The top output port of the vertical lifting conveying channel (2) is connected to the lower interface of the T-shaped shunt device (3). The vertical lifting conveying channel (2) has two second conveying surfaces with a predetermined distance for clamping and lifting materials; The material inlet and outlet of the buffer (5) are connected to the right interface (8) of the T-shaped shunt device (3) through the buffer conveying channel (4). The left interface (9) of the T-shaped shunt device (3) is connected to the inlet of the confluence conveying channel (6) through a conveying channel; the left interface (9) of the T-shaped shunt device (3) has a horizontal third conveying surface for conveying materials to the left, the right interface (8) of the T-shaped shunt device (3) has a horizontal fourth conveying surface for outputting materials to the right or inputting materials from the right, and the buffer conveying channel (4) has a fifth conveying surface for bidirectional conveying of materials; The bottom outlet of the confluence conveying channel (6) is connected to the downstream packaging machine. The inlet of the confluence conveying channel (6) has a horizontal seventh conveying surface for inwardly conveying materials; The electric control unit (7) is installed on one side of the vertical lifting conveying channel (2); the electric control unit (7) is used to control the inlet horizontal conveying channel (1), the vertical lifting conveying channel (2), the T-shaped shunt device (3), the buffer conveying channel (4), the buffer (5), and the confluence conveying channel (6) to convey materials; The first conveying surface is lower than the fifth conveying surface. The third conveying surface and the fourth conveying surface are on the same horizontal plane. The T-shaped confluence buffer conveying system conveys the rod-shaped object in a state where the length direction is transverse to the conveying direction and parallel to the horizontal plane.

2. The T-shaped split-confluence buffer conveying system according to claim 1, wherein The height values of the conveying channels of the T-shaped confluence buffer conveying system are the same; wherein, the height values of the conveying channels of the T-shaped confluence buffer conveying system are defined as: the dimension in the direction perpendicular to the conveying direction and perpendicular to the length direction of the conveyed rod-shaped object within the plane of the conveying channel.

3. The T-shaped branch and confluence buffer conveying system according to claim 2, wherein, The electric control unit (7) includes a main controller (18) and a servo drive subsystem. Each component in the servo drive subsystem is connected to the main controller (18), and a control program for controlling the servo drive subsystem is pre-stored in the main controller (18); The servo drive subsystem includes: A first driving device (U01) for controlling a first servo motor (M01) installed at the inlet horizontal conveying channel (1) under the control of the main controller (18) to drive the first conveying surface to move through the first servo motor (M01); The second driving device (U02) is used to control the second servo motor (M02) installed at the vertical lifting and conveying channel (2) under the control of the main controller (18), so as to drive the movement of the second conveying surface through the second servo motor (M02); The third driving device (U03) is used to control the third servo motor (M03) installed at the bottom left end of the buffer conveying channel (4) under the control of the main controller (18), so as to drive the fifth conveying surface to move leftward through the third servo motor (M03); The fourth driving device (U04) is used to control the fourth servo motor (M04) installed at the bottom right end of the buffer conveying channel (4) under the control of the main controller (18), so as to drive the fifth conveying surface to move rightward through the fourth servo motor (M04); The fifth driving device (U05) is used to control the fifth servo motor (M05) under the control of the main controller (18), so as to drive the transition conveyor belt installed between the right end interface of the buffer conveying channel (4) and the output interface of the buffer (5) to move left / right through the fifth servo motor (M05); The sixth driving device (U06) is used to control the sixth servo motor (M06) installed in the buffer (5) under the control of the main controller (18), so as to drive the buffer (5) to convey materials outward / buffer materials inward through the sixth servo motor (M06); The seventh driving device (U07) is used to control the seventh servo motor (M07) installed in the confluence conveying channel (6) under the control of the main controller (18), so as to drive the movement of the seventh conveying surface through the seventh servo motor (M07).

4. The T-shaped split-confluence buffer conveying system according to claim 3, wherein, The T-shaped branch-confluence buffer conveying system further includes: The first level detector (10) is installed at the entrance of the vertical lifting and conveying channel (2) and is used to detect the thickness value of the rod-shaped material layer at the entrance of the vertical lifting and conveying channel (2) in real time and send it to the main controller (18); The main controller (18) calculates the first running speed value based on the first formula according to the received thickness value of the rod-shaped material layer at the entrance of the vertical lifting and conveying channel (2), and controls the running speed value of the second servo motor (M02) to be the first running speed value through the second driving device (U02); Wherein, the first formula is: ； In the above first formula, V l is the first operating speed value, d is the diameter of the predetermined rod-shaped object, H is the height value of the conveying channel of the T-shaped split-confluence buffer conveying system, β 1 is the transmission gear ratio of the conveying mechanism driven by the second servo motor (M02), V j is the operating speed of the rod-shaped material production equipment, k 1 is the first preset adjustment and correction coefficient, R 1 is the current detection value of the first level detector (10).

5. The T-shaped split-confluence buffer conveying system according to claim 4, wherein The T-shaped branch-confluence buffer conveying system further includes: The second level detector (12) is installed at the top inside the channel of the confluence conveying channel (6) and is used to detect the thickness value of the rod-shaped material layer conveyed by the confluence conveying channel (6) in real time and send it to the main controller (18); The main controller (18) calculates the second running speed value based on the second formula according to the received thickness value of the rod-shaped material layer conveyed by the confluence conveying channel (6), and controls the running speed value of the seventh servo motor (M07) to be the second running speed value through the seventh driving device (U07); Wherein, the second formula is: ； In the above second formula, V h is the second operating speed value, d is the diameter of the predetermined rod-shaped object, β 2 is the transmission gear ratio of the conveying mechanism driven by the seventh servo motor (M07), V b is the operating speed of the packaging machine, p is the number of rod-shaped objects per pack packaged by the predetermined downstream packaging machine, k 2 is the second preset adjustment and correction coefficient, R 3 is the current detection value of the second level detector (12).

6. The T-shaped split-confluence buffer conveying system according to claim 3, wherein The main controller (18) calculates a third operating speed value according to a third formula, and controls the operating speed value of the first servo motor (M01) to be the third operating speed value through the first driving device (U01); wherein, the third formula is: ； In the above third formula, V q is the third operating speed value, d is the diameter of the predetermined rod-shaped object, H is the height value of the conveying channel of the T-shaped branch-confluence buffer conveying system, β 3 is the transmission gear ratio of the conveying mechanism driven by the first servo motor (M01), V j is the operating speed of the rod-shaped material production equipment, k 3 is the third preset adjustment and correction coefficient.

7. The T-shaped splitting and confluence buffer conveying system according to claim 5, wherein The T-shaped split-converging buffer conveying system further includes: The third material level detector (11) is installed at the inner top of the bin of the T-shaped shunting device (3) and is used to detect the thickness value of the rod-shaped material layer in the bin of the T-shaped shunting device (3) in real time R and send it to the main controller (18); The master controller (18) determines the current operating condition of the system based on the current first operating speed value V l , the second operating speed value V h and the thickness value of the rod-shaped material layer in the silo of the T-shaped diverter device (3), R Based on the preset operating condition determination rule, the operating condition of the current system is determined, and according to the operating condition of the current system, the operating speed of the sixth servo motor (M06) is controlled by the sixth driving device (U06); wherein, the operating condition determination rule is: When ( V l > 10 pieces / minute) and ( V h ≤ 0 pieces / minute) and ( R 2 ≥ S f ), it is the full-inlet and split-flow operation condition; where S f is the set value of the split-flow material level; When ( V l ≤ 0 pieces / minute) and ( V h > 10 pieces / minute) and ( R 2 ≤ S h ), it is the full-out confluence operation condition; where S h is the set value of the confluence material level; When ( V l - V h ) > S i and ( R 2 ≥ S f ), it is the high-speed shunt differential compensation operation condition; where S i is the preset boundary value between the high-speed difference and the low-speed difference; When ( V h - V l ) > S i and ( R 2 ≤ S h ), it is the high-speed bus differential compensation operation condition; When ( V l - V h ) < S i and ( R 2 ≥ S f ), it is the low-speed shunt differential compensation operation condition; When ( V h - V l ) < S i and ( R 2 ≤ S h ), it is the low-speed bus differential compensation operation condition; When ( V h ≤ 10 / piece / minute) and ( V l ≤ 10 / piece / minute) and ( R 2 ≥ S f ), it is the full-stop shunt compensation operation condition; When ( V h ≤ 10 / branch / minute) and ( V l ≤ 10 / branch / minute) and ( R 2 ≤ S h ), it is the full-stop bus compensation operation condition.

8. The T-shaped split-confluence buffer conveying system according to claim 7, wherein Controlling the operating speed of the sixth servo motor (M06) through the sixth driving device (U06) according to the operating condition of the current system includes: When the operating condition of the current system is a full-in split operation condition, the main controller (18) calculates a fourth operating speed value according to a fourth formula, and the fourth formula is: V 4=（ V l + R 2）× k 4 When the operating condition of the current system is a full-out converging operation condition, the main controller (18) calculates a fifth operating speed value according to a fifth formula, and the fifth formula is: V 5=（ V h + R 2）× k 4 When the operating condition of the current system is a high-speed split differential compensation operation condition, the main controller (18) calculates a sixth operating speed value according to a sixth formula, and the sixth formula is: V 6=（ V l - V h + R 2）× k 4 When the operating condition of the current system is a high-speed converging differential compensation operation condition, the main controller (18) calculates a seventh operating speed value according to a seventh formula, and the seventh formula is: V 7=（ V h – V l + R 2）× k 4 When the operating condition of the current system is a low-speed split differential compensation operation condition, the main controller (18) calculates an eighth operating speed value according to an eighth formula, and the eighth formula is: V 8=（ S i + R 2）× k 4 When the operating condition of the current system is a low-speed converging differential compensation operation condition, the main controller (18) calculates a ninth operating speed value according to a ninth formula, and the ninth formula is: V 9=（ S i + R 2）× k 4 When the operating condition of the current system is a full-stop split compensation operation condition, the main controller (18) calculates a tenth operating speed value according to a tenth formula, and the tenth formula is: V 10 = R 2× k 4 When the operating condition of the current system is a full-stop converging compensation operation condition, the main controller (18) calculates an eleventh operating speed value according to an eleventh formula, and the eleventh formula is: V 11 = R 2× k 4 In the above fourth / fifth / sixth / seventh / eighth / ninth / tenth / eleventh formula, V from 4 to V 11 are successively the fourth operating speed value to the eleventh operating speed value, R 2 is the current detection value of the third level detector (11), k 4 is the fourth preset adjustment correction coefficient; wherein, when the main controller (18) calculates the fourth / sixth / eighth / tenth operating speed value, it controls the operating speed value of the sixth servo motor (M06) to be the currently calculated fourth / sixth / eighth / tenth operating speed value through the sixth driving device (U06), and controls the sixth servo motor (M06) to rotate forward to make the buffer (5) buffer materials inward; when the main controller (18) calculates the fifth / seventh / ninth / eleventh operating speed value, it controls the operating speed value of the sixth servo motor (M06) to be the currently calculated fifth / seventh / ninth / eleventh operating speed value through the sixth driving device (U06), and controls the sixth servo motor (M06) to rotate in reverse to make the buffer (5) convey materials outward; while controlling the sixth servo motor (M06), the main controller (18) also controls the fifth servo motor (M05) to move synchronously with the sixth servo motor (M06) through the fifth driving device (U05).

9. The T-shaped split-confluence buffer conveying system according to claim 3, characterized in that The electronic control unit (7) further includes: a buffer operation control unit (15), a lifting operation control unit (14), a first human-machine operation terminal (17), and a second human-machine operation terminal (16); the first human-machine operation terminal (17) is connected to the buffer operation control unit (15), and the second human-machine operation terminal (16) is connected to the lifting operation control unit (14); The buffer operation control unit (15) is communicatively connected to the main controller (18) and is configured to send the control instructions received by the first human-machine operation terminal (17) for the third driving device (U03), the fourth driving device (U04), the fifth driving device (U05), the sixth driving device (U06), and the seventh driving device (U07) to the main controller (18); The lifting operation control unit (14) is communicatively connected to the main controller (18) and is configured to send the control instructions received by the second human-machine operation terminal (16) for the first driving device (U01) and the second driving device (U02) to the main controller (18).

10. The T-shaped split-confluence buffer conveying system according to any one of claims 3-9, characterized in that, The T-shaped branch buffer conveying system further includes a buffer quantity detector (13) installed in the buffer (5) for real-time detecting the current buffer quantity of the buffer (5) and feeding back the current buffer quantity to the main controller (18); The main controller (18) is further configured to, when the second driving device (U02) starts the second servo motor (M02), determine whether the buffer (5) is full according to the current buffer quantity; if so, send a prohibited operation prompt signal to the upstream rod-shaped material production equipment; otherwise, send an allowed operation prompt signal to the upstream rod-shaped material production equipment, and at the same time continuously monitor whether the current buffer quantity reaches a preset first buffer quantity, and when the current buffer quantity reaches the preset first buffer quantity, send a speed reduction prompt signal to the upstream rod-shaped material production equipment; The main controller (18) is further configured to, when the sixth driving device (U06) starts the sixth servo motor (M06), determine whether the buffer (5) is empty according to the current buffer quantity; if so, send a prohibited operation prompt signal to the downstream packaging machine; otherwise, send an allowed operation prompt signal to the downstream packaging machine, and at the same time continuously monitor whether the current buffer quantity reaches a preset second buffer quantity, and when the current buffer quantity reaches the preset second buffer quantity, send a speed reduction prompt signal to the downstream packaging machine.

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