Energy-saving buffer conveying method and system thereof

Abstract

The application discloses an energy-saving buffer conveying method, which comprises the following steps: acquiring tension data of a conveying belt, in-out bottle quantity data and working speed data of each control motor; analyzing the data to obtain energy utilization conditions under different working conditions and an optimization target; performing algorithm optimization according to the optimization target to obtain optimal conveying belt tension values or optimal working speed values of the control motor under corresponding working conditions; and achieving the energy-saving effect of the buffer conveying system through data analysis and optimization algorithm, realizing a more intelligent production process, reducing energy consumption and lowering production cost. In addition, the movement mode of a guide device in the buffer conveying system is changed, one end of a contact guide piece is directly connected with one side of an in-bottle conveying belt and one side of an out-bottle conveying belt, that is, the guide device is realized to be co-rail with the in-bottle conveying belt and the out-bottle conveying belt, and the operation precision of the guide device is improved, and the guide device can keep relatively stable operation in a long-distance moving range.

Description

Technical Field

[0001] This invention belongs to the field of conveying equipment technology, and in particular relates to an energy-saving buffer conveying method and system. Background Technology

[0002] A typical bottling or canning production line includes a filling machine and a labeling machine. After filling, the bottles need to be conveyed to the labeling machine for labeling. In traditional production lines, the labeling machine has a lower capacity than the filling machine, which requires the filling machine to reduce its capacity to accommodate the labeling machine. Therefore, when the labeling machine malfunctions or needs maintenance and stops, the filling machine also needs to stop to ensure that the labeling machine can label the excess bottles due to low capacity. However, with the development of labeling technology, the capacity of existing labeling machines has been greatly improved. This means that the filling machine does not need to reduce its capacity to accommodate the labeling machine. On the contrary, when necessary, the labeling machine can increase its capacity to quickly label the produced bottles. Therefore, when the labeling machine malfunctions or needs maintenance and stops, the filling machine does not need to stop to accommodate it. During the labeling machine's downtime, the filled bottles can be stored on a buffer conveyor line, and the labeling machine can be used to label the stored bottles after resuming production by increasing its capacity.

[0003] With the rapid development of industry, energy consumption has reached unprecedented levels, and energy shortages have become a global problem. Currently, in industries such as aviation, shipbuilding, transportation machinery design and manufacturing, nuclear energy, and petrochemicals, people are paying close attention not only to high performance, high efficiency, and high precision, but also to the energy-saving, emission-reduction, economic, and environmental benefits of machinery. The development of transportation machinery also faces three major challenges: energy conservation, environmental protection, and improved safety and structural aesthetics.

[0004] Therefore, how to achieve energy-saving operation of the buffer transportation system is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] To address the above problems, the present invention provides an energy-saving buffered conveying method and system.

[0006] The technical solution of this invention is as follows:

[0007] This invention discloses an energy-saving buffered conveying method, comprising:

[0008] Acquire data on conveyor belt tension, bottle inflow and outflow quantities, and operating speed of each control motor;

[0009] The data is analyzed to obtain the energy utilization under different operating conditions and to derive optimization targets;

[0010] The algorithm is optimized based on the optimization objective to obtain the optimal conveyor belt tension value or the optimal control motor operating speed value under the corresponding working conditions.

[0011] Furthermore, the different operating conditions include: the bottle inlet conveyor belt is working while the bottle outlet conveyor belt is not working; the bottle inlet conveyor belt is not working while the bottle outlet conveyor belt is working; and the bottle inlet conveyor belt and the bottle outlet conveyor belt are working simultaneously.

[0012] Furthermore, when the inlet conveyor belt is working while the outlet conveyor belt is not working, or vice versa, based on the data analysis results, the energy utilization rate needs to be maximized. The optimization objective is to control the operating speed of the motor. An objective function G(ω) for energy utilization rate is constructed, and the optimal control motor operating speed value ω is then determined. * The calculation formula is: Where, ω ’ ω represents the motor operating speed value from the previous step. * The updated control motor operating speed value, where α is the learning rate. Let be the partial derivative of the objective function with respect to velocity, and let represent the rate at which the objective function changes with velocity.

[0013] Furthermore, when the inlet and outlet conveyor belts operate simultaneously, based on data analysis, it is necessary to minimize the energy consumption of the conveyor belts. The optimization objective is the conveyor belt tension value. An energy consumption loss function L(F) is constructed, and the optimal conveyor belt tension value F is then determined. * The calculation formula is: Among them, F ’ F represents the conveyor belt tension value from the previous step. * The updated conveyor belt tension value, where α is the learning rate. Let be the partial derivative of the loss function with respect to tension, and let represent the rate at which energy consumption changes with tension.

[0014] Furthermore, the data analysis requires determining the energy consumption, power, motor efficiency, energy utilization rate, power loss, output, and production efficiency under different operating conditions.

[0015] This invention also discloses an energy-saving buffer conveying system, which employs the aforementioned energy-saving buffer conveying method. The system includes: an inlet conveyor belt, an outlet conveyor belt, a guiding device, a guardrail, and a control device. The inlet conveyor belt and the outlet conveyor belt are arranged side-by-side, and their movement directions are opposite to each other. The guiding device is located above the inlet and outlet conveyor belts. The guardrail is located on both sides of the inlet and outlet conveyor belts. The guiding device includes a contact guide, a mounting base, and a rolling element. One end of the contact guide is directly connected to one side of the inlet conveyor belt and one side of the outlet conveyor belt. The other end of the contact guide is fixedly installed on the side of the guardrail. The rolling element is located on the mounting base, which is engaged between the contact guides. The rolling element is positioned above the contact guide. The control device is electrically connected to the inlet and outlet conveyor belts.

[0016] Furthermore, the guiding device also includes a non-powered arc-shaped guardrail, which is composed of several rollers.

[0017] Furthermore, the guiding device also includes a guiding section located between the inlet conveyor belt and the outlet conveyor belt. A synchronous belt is connected below the guiding section, and a guiding motor is provided on one side of the synchronous belt. The guiding motor drives the guiding section.

[0018] Furthermore, the bottle inlet conveyor belt and the bottle outlet conveyor belt are equipped with encoders or electronic eyes at their beginning ends, and distance sensors are equipped with distance sensors at their end ends. The bottle inlet conveyor belt and the bottle outlet conveyor belt are respectively connected to a bottle inlet motor and a bottle outlet motor. The encoder or electronic eye, the distance sensor, the bottle inlet motor and the bottle outlet motor are respectively electrically connected to the control device.

[0019] Furthermore, the control device includes a data acquisition module, an analysis module, a calculation module, and a command transmission module. The data acquisition module is used to collect tension data of the inlet conveyor belt, tension data of the outlet conveyor belt, data on the number of bottles entering and exiting, data on the operating speed of the inlet motor, data on the operating speed of the outlet motor, and signals from the distance sensor. The analysis module is used to perform data analysis based on the data obtained by the data acquisition module to obtain the energy utilization under different working conditions and to obtain optimization targets. The calculation module is used to calculate energy consumption value, power value, motor efficiency value, energy utilization rate value, power loss value, output value, production efficiency value, optimal conveyor belt tension value, and optimal control motor operating speed value. The command transmission module transmits the calculated values ​​and distance sensor signals to the inlet conveyor belt, the outlet conveyor belt, the inlet motor, the outlet motor, and the guide motor.

[0020] The beneficial effects of this invention are as follows:

[0021] By employing data analysis and optimization algorithms, the buffer conveyor system achieves energy savings, enabling a more intelligent production process, reducing energy consumption, and lowering production costs. Furthermore, the buffer conveyor system alters the movement of the guiding device; one end of the contact guide is directly connected to one side of the inlet conveyor belt and the other side of the outlet conveyor belt. This ensures the guiding device shares a track with both the inlet and outlet conveyor belts, improving its operational accuracy and maintaining relatively stable operation over long distances. Attached Figure Description

[0022] Figure 1 This is a flowchart of an energy-saving buffer conveying method according to the present invention;

[0023] Figure 2 This is a top view schematic diagram of an energy-saving buffer conveying system according to the present invention;

[0024] Figure 3 for Figure 2 The diagram shows the cross-sectional structure of BB.

[0025] Figure 4 for Figure 3 Enlarged structural diagram of the circled area;

[0026] Figure 5 for Figure 2 A schematic diagram of the side structure in direction A.

[0027] Figure 6 This is a block diagram of a control device for an energy-saving buffer conveying system according to the present invention;

[0028] Figure label:

[0029] 1. Bottle inlet conveyor belt; 2. Bottle inlet motor; 3. Bottle outlet conveyor belt; 4. Bottle outlet motor; 5. Guiding device; 51. Contact guide; 52. Mounting base; 53. Rolling element; 54. Non-powered curved guardrail; 541. Roller; 55. Guide element; 56. Guide motor; 6. Control device; 61. Data acquisition module; 62. Analysis module; 63. Calculation module; 64. Command sending module; 7. Distance sensor; 8. Guardrail. Detailed Implementation

[0030] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] It should be noted that when a component is referred to as "mounted on", "set on", "covered on", "sleeved on", or "locked on" another component, it can be directly on the other component or indirectly on the other component.

[0032] It should be understood that, in the description of this invention, "a number" means two or more, unless otherwise explicitly specified.

[0033] Furthermore, the terms “inner,” “upper,” “between,” “both sides,” “one side,” “top,” “bottom,” “side,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0034] It should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature.

[0035] It should be noted that the "and / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Here, A and B can be singular or plural, respectively.

[0036] Please refer to Figure 1 The present invention provides an energy-saving buffered conveying method, comprising:

[0037] Acquire data on conveyor belt tension, bottle inflow and outflow quantities, and operating speed of each control motor;

[0038] The data is analyzed to obtain the energy utilization under different operating conditions and to derive optimization targets;

[0039] The algorithm is optimized based on the optimization objective to obtain the optimal conveyor belt tension value or the optimal control motor operating speed value under the corresponding working conditions.

[0040] Specifically, tension sensors or pressure sensors are installed on the conveyor belt to monitor the tension of the conveyor belt in real time.

[0041] Furthermore, the different operating conditions include: the bottle inlet conveyor belt is working while the bottle outlet conveyor belt is not working; the bottle inlet conveyor belt is not working while the bottle outlet conveyor belt is working; and the bottle inlet conveyor belt and the bottle outlet conveyor belt are working simultaneously.

[0042] Furthermore, the data analysis requires determining the energy consumption, power, motor efficiency, energy utilization rate, power loss, output, and production efficiency under different operating conditions.

[0043] The data was analyzed using statistical analysis methods, and the following table was obtained:

[0044] Table 1. Analysis data when the inlet conveyor belt is working and the outlet conveyor belt is not working.

[0045]

[0046]

[0047] The table above shows that adjusting the motor speed can improve energy utilization. Therefore, the analysis structure is: to maximize energy utilization, the optimization goal is to control the motor's operating speed.

[0048] It's worth noting that the encoder mounted on the motor shaft can monitor the motor's speed in real time. Furthermore, a torque sensor can directly measure the motor's output torque. These sensors allow us to acquire motor speed and torque data, and further calculate power.

[0049] Table 2. Analysis data when the inlet conveyor belt stops working while the outlet conveyor belt works.

[0050]

[0051] The table above shows that adjusting the motor speed can improve energy utilization. Therefore, the analysis structure is: to maximize energy utilization, the optimization goal is to control the motor's operating speed.

[0052] Table 3. Analysis data when the inlet conveyor belt and the outlet conveyor belt are working simultaneously.

[0053]

[0054]

[0055] The table above shows that adjusting the belt tension can reduce energy consumption. Therefore, the analysis structure is to minimize the energy consumption of the conveyor belt, and the optimization objective is the conveyor belt tension value.

[0056] Although the data analysis also yielded values ​​for power, motor efficiency, power loss, output, and production efficiency, these parameters were deleted because they were irrelevant to the analysis results.

[0057] Furthermore, when the inlet conveyor belt is working while the outlet conveyor belt is not working, or vice versa, based on the data analysis results, the energy utilization rate needs to be maximized. The optimization objective is to control the operating speed of the motor. An objective function G(ω) for energy utilization rate is constructed, and the optimal control motor operating speed value ω is then determined. * The calculation formula is: Where, ω ’ ω represents the motor operating speed value from the previous step. * The updated control motor operating speed value, where α is the learning rate. Let be the partial derivative of the objective function with respect to velocity, and let represent the rate at which the objective function changes with velocity.

[0058] Furthermore, when the inlet and outlet conveyor belts operate simultaneously, based on data analysis, it is necessary to minimize the energy consumption of the conveyor belts. The optimization objective is the conveyor belt tension value. An energy consumption loss function L(F) is constructed, and the optimal conveyor belt tension value F is then determined. * The calculation formula is: Among them, F ’ F represents the conveyor belt tension value from the previous step. * The updated conveyor belt tension value, where α is the learning rate. Let be the partial derivative of the loss function with respect to tension, and let represent the rate at which energy consumption changes with tension.

[0059] In summary, by using data analysis and optimization algorithms, the buffer conveyor system can achieve energy-saving effects, realize a more intelligent production process, reduce energy consumption, and lower production costs.

[0060] Reference Figures 2-6The present invention also discloses an energy-saving buffer conveying system, which is implemented using the above-mentioned energy-saving buffer conveying method, including: an inlet conveyor belt 1, an outlet conveyor belt 2, a guide device 5, a guardrail 8, and a control device 6. The inlet conveyor belt 1 and the outlet conveyor belt 2 are arranged side by side, and the movement directions of the inlet conveyor belt 1 and the outlet conveyor belt 2 are opposite to each other. The guide device 5 is located above the inlet conveyor belt 1 and the outlet conveyor belt 2. The guardrail 8 is located on both sides of the inlet conveyor belt 1 and the outlet conveyor belt 2. The guide device 5 includes a contact guide 51, a mounting base 52, and a rolling element 53. One end of component 51 is directly connected to one side of the inlet conveyor belt 1 and one side of the outlet conveyor belt 2. The other end of the contact guide component 51 is fixedly installed on the side of the guardrail 8. The rolling component 53 is disposed on the mounting base 52, and the mounting base 52 is engaged between the contact guide components 51. The rolling component 53 is located above the contact guide component 51. The control device 6 is electrically connected to the inlet conveyor belt 1 and the outlet conveyor belt 2. That is, the guide device 5 shares a track with the inlet conveyor belt 1 and the outlet conveyor belt 2, which improves the running accuracy of the guide device 5 and enables it to maintain relatively stable operation over a long distance.

[0061] Furthermore, the guiding device 5 also includes a non-powered arc-shaped guardrail 54, which is composed of a plurality of rollers 541. (Refer to...) Figure 1 As can be seen, the guardrail on the inlet conveyor belt 1 has a large arc. When it reaches the outlet conveyor belt 2, the guardrail is horizontal. That is, the bottle on the inlet conveyor belt 1 is rounded. The bottle on the inlet conveyor belt 1 is moved along several rollers 541. The rollers 541 slide to help the bottle move to the outlet conveyor belt 2. The self-powered method makes the bottle less likely to be squeezed and deformed.

[0062] Furthermore, the guiding device 5 also includes a guiding section 55, which is located between the bottle inlet conveyor belt 1 and the bottle outlet conveyor belt 2. A synchronous belt (not shown) is connected below the guiding section 55. A guiding motor 56 is provided on one side of the synchronous belt. The guiding motor 56 drives the guiding section 55, that is, the guiding motor 56 drives the conductive device to move along the synchronous belt. Under the control of the guiding motor 56, the guiding device 5 is prevented from moving due to bottle compression, and the guiding device 5 can move smoothly.

[0063] Reference Figure 2 The guide part 55 is a turntable or a large roller, that is, the front of the bottle is also provided with driving force to guide the bottle from the guide device 5 and enter the bottle conveyor belt 2, thereby preventing the bottle from being squeezed and deformed in the guide device 5.

[0064] Furthermore, the first ends of the inlet conveyor belt 1 and the outlet conveyor belt 2 are equipped with encoders or electronic eyes, and the tail ends of the inlet conveyor belt 1 and the outlet conveyor belt 2 are equipped with distance sensors 7. The inlet conveyor belt 1 and the outlet conveyor belt 2 are respectively connected to an inlet motor 2 and an outlet motor 4. The encoder or electronic eye, the distance sensor 7, the inlet motor 2, and the outlet motor 4 are electrically connected to the control device 6. The distance sensor 7 is used to monitor the guide motor 56 in real time. That is, if the guide device 5 has not reached the end of the buffer conveyor system, the distance sensor 7 helps the guide motor 56 determine whether it can continue to move backward. Controlling the active movement of the guide motor 56 also requires the assistance of the control device 6, which can be achieved by determining whether the guide device 5 needs to move actively based on the number of bottles inlet and outlet.

[0065] Working principle:

[0066] During normal production, the guide device 5 is located at the inlet end of the buffer conveyor system shown in the figure. The bottles are smoothly transferred to the outlet conveyor belt 2 by the bottle inlet motor 2 driven by the bottle inlet conveyor belt 1 and the arc guardrail of the guide device 5. As the number of bottles on the bottle inlet conveyor belt 1 increases, the guide device 5 moves towards the end of the buffer conveyor system, or as the number of bottles on the outlet conveyor belt 2 decreases, the guide device 5 moves towards the inlet end of the buffer conveyor system. Generally, the guide device 5 is only located in the middle of the buffer conveyor platform.

[0067] When the production line needs buffer bottles or the labeling machine malfunctions, the bottle outlet motor 4 of the bottle outlet conveyor belt 2 stops working, while the bottle inlet conveyor belt 1 operates normally, continuously bringing bottles into the guide device 5 and accumulating them on one side of the bottle outlet conveyor belt 2. Once the bottle outlet conveyor belt 2 has a large number of bottles, the guide device 5 slowly moves backward a distance, and the bottles on the bottle inlet conveyor belt 1 fill the empty space. This cycle continues until the guide device 5 moves to the maximum buffer position at the end of the buffer conveyor system and stops. The end area of ​​the buffer conveyor system where the guide device 5 is located is the maximum buffer capacity.

[0068] Once the production line returns to normal, the bottle discharge motor 4 of the bottle discharge conveyor belt 2 is started, and the bottles flow out of the bottle discharge conveyor belt 2. At the same time, the guide device 5 moves to the initial position at the entrance of the buffer conveyor system to prepare for the next buffering demand.

[0069] Furthermore, the control device 6 includes a data acquisition module 61, an analysis module 62, a calculation module 63, and a command transmission module 64. The data acquisition module 61 is used to collect tension data of the inlet conveyor belt 1, tension data of the outlet conveyor belt 2, inlet and outlet bottle quantity data, operating speed data of the inlet motor 2, operating speed data of the outlet motor 4, and signals from the distance sensor 7. The analysis module 62 is used to perform data analysis based on the data obtained by the data acquisition module 61 to obtain energy utilization under different working conditions and to obtain optimization targets. The calculation module 63 is used to calculate energy consumption value, power value, motor efficiency value, energy utilization rate value, power loss value, output value, production efficiency value, optimal conveyor belt tension value, and optimal control motor operating speed value. The command transmission module 64 transmits the calculated values ​​and the distance sensor 7 signals to the inlet conveyor belt 1, the outlet conveyor belt 2, the inlet motor 2, the outlet motor 4, and the guide motor 56.

[0070] The above-described embodiments are merely one implementation of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An energy-saving buffer conveying method, characterized in that, include: Acquire data on conveyor belt tension, bottle inflow and outflow quantities, and operating speed of each control motor; The data is analyzed to obtain the energy utilization under different operating conditions and to derive optimization targets; Based on the optimization objective, the algorithm is optimized to obtain the optimal conveyor belt tension value or the optimal control motor operating speed value under the corresponding working conditions. The different operating conditions include: the bottle inlet conveyor belt is working while the bottle outlet conveyor belt is not working; the bottle inlet conveyor belt is not working while the bottle outlet conveyor belt is working; and the bottle inlet conveyor belt and the bottle outlet conveyor belt are working simultaneously. When the inlet conveyor belt is working while the outlet conveyor belt is not working, or vice versa, based on data analysis, the energy utilization rate needs to be maximized. The optimization objective is to control the motor's operating speed. An objective function for energy utilization rate, G(ω), is constructed, and the optimal motor operating speed value ω is determined. * The formula for calculating ω is: * =ω ’ -α , where ω ’ ω represents the motor operating speed value from the previous step. * The updated control motor operating speed value, where α is the learning rate. Let be the partial derivative of the objective function with respect to velocity, and This represents the rate at which the objective function changes with velocity.

2. The energy-saving buffer conveying method according to claim 1, characterized in that, When the inlet and outlet conveyor belts operate simultaneously, based on data analysis, it is necessary to minimize the energy consumption of the conveyor belts. The optimization objective is the conveyor belt tension value. An energy consumption loss function L(F) is constructed, and the optimal conveyor belt tension value F is determined. * The calculation formula is: F * =F ’ -α , of which F ’ F represents the conveyor belt tension value from the previous step. * The updated conveyor belt tension value, where α is the learning rate. Let be the partial derivative of the loss function with respect to tension, and This indicates the rate at which energy consumption changes with tension.

3. The energy-saving buffer conveying method according to claim 1, characterized in that, The data analysis requires determining the energy consumption, power, motor efficiency, energy utilization rate, power loss, output, and production efficiency under different operating conditions.

4. An energy-saving buffer conveying system, characterized in that, It is implemented using the energy-saving buffer conveying method as described in any one of claims 1-3, comprising: an inlet conveyor belt (1), an outlet conveyor belt (3), a guide device (5), a guardrail (8), and a control device (6). The inlet conveyor belt (1) and the outlet conveyor belt (3) are arranged side by side, and the movement directions of the inlet conveyor belt (1) and the outlet conveyor belt (3) are opposite to each other. The guide device (5) is located above the inlet conveyor belt (1) and the outlet conveyor belt (3). The guardrail (8) is located on both sides of the inlet conveyor belt (1) and the outlet conveyor belt (3). The guide device (5) includes... The device includes a contact guide (51), a mounting base (52), and a rolling element (53). One end of the contact guide (51) is directly connected to one side of the inlet conveyor belt (1) and one side of the outlet conveyor belt (3). The other end of the contact guide (51) is fixedly installed on the side of the guardrail (8). The rolling element (53) is located on the mounting base (52). The mounting base (52) is engaged between the contact guides (51). The rolling element (53) is located above the contact guides (51). The control device (6) is electrically connected to the inlet conveyor belt (1) and the outlet conveyor belt (3).

5. The energy-saving buffer conveying system according to claim 4, characterized in that, The guiding device (5) also includes a non-powered arc-shaped guardrail (54), which is composed of several rollers (541).

6. The energy-saving buffer conveying system according to claim 5, characterized in that, The guiding device (5) further includes a guiding part (55), which is located between the bottle inlet conveyor belt (1) and the bottle outlet conveyor belt (3). A synchronous belt is connected below the guiding part (55), and a guiding motor (56) is provided on one side of the synchronous belt. The guiding motor (56) drives the guiding part (55).

7. The energy-saving buffer conveying system according to claim 6, characterized in that, The first end of the inlet conveyor belt (1) and the outlet conveyor belt (3) is equipped with an encoder or electronic eye, and the tail end of the inlet conveyor belt (1) and the outlet conveyor belt (3) is equipped with a distance sensor (7). The inlet conveyor belt (1) and the outlet conveyor belt (3) are respectively connected to an inlet motor (2) and an outlet motor (4). The encoder or the electronic eye, the distance sensor (7), the inlet motor (2) and the outlet motor (4) are respectively electrically connected to the control device (6).

8. The energy-saving buffer conveying system according to claim 7, characterized in that, The control device (6) includes a data acquisition module (61), an analysis module (62), a calculation module (63), and an instruction sending module (64). The data acquisition module (61) is used to collect tension data of the inlet conveyor belt (1), tension data of the outlet conveyor belt (3), inlet and outlet bottle quantity data, working speed data of the inlet motor (2), working speed data of the outlet motor (4), and signals from the distance sensor (7). The analysis module (62) is used to perform data analysis based on the data obtained by the data acquisition module (61) to obtain energy utilization under different working conditions and to obtain optimization targets. The calculation module (63) is used to calculate energy consumption value, power value, motor efficiency value, energy utilization rate value, power loss value, output value, production efficiency value, optimal conveyor belt tension value, and optimal control motor working speed value. The instruction sending module (64) transmits the calculated values ​​and the distance sensor (7) signals to the inlet conveyor belt (1), the outlet conveyor belt (3), the inlet motor (2), the outlet motor (4), and the guide motor (56).

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