Double-helix flying shear control system

Abstract

The invention relates to the technical field of shearing control systems, and discloses a double-helix flying shear control system which comprises a control unit used for inputting a shearing task and issuing a shearing instruction; the monitoring unit is used for acquiring current paperboard size information and monitoring the speed and the position of the flying shear tool and the roller mechanism in real time to form current data; the flying shear tool comprises a double-shaft spiral shaft and blades arranged on the spiral shaft; the roller mechanism comprises a roller set used for conveying paperboards. The regulation and control unit is used for generating regulation data according to the paperboard size information and preset shearing size data, and regulating and controlling the flying shear tool or the roller mechanism according to the regulation data; and the feedback unit is used for feeding back the adjustment data to the control center and adjusting the control error based on the historical data. The paperboard shearing device supports continuous shearing of paperboards of multiple sizes, the universality is enhanced, the shearing efficiency and precision are improved, the material utilization rate is increased, the production efficiency is improved, and the cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of flying shear system control, in particular to a double-helix flying shear control system. Background Art

[0002] In the current cardboard processing and manufacturing industry, the performance and flexibility of the double-helix flying shear equipment, as a key shearing tool, have a direct impact on production efficiency and product quality. The characteristic of this equipment is that its knife shaft adopts a double-helix design. This unique design makes the shearing process not only more stable, but also significantly improves efficiency. However, the existing double-helix flying shear equipment control system can only preset and execute a few fixed shearing sizes, which greatly limits its scope of application. When it is necessary to process cardboards of different sizes or specifications, it can only be reset, and sometimes it is necessary to replace new cardboards, which easily leads to excessive cardboard waste in the production process, resulting in waste, or recycling production, increasing costs, and greatly reducing its shearing efficiency.

[0003] With the continuous changes in market demand and the growing demand for individualization, the cardboard processing industry has put forward higher requirements for the flexibility and precision of shearing equipment. However, the existing double-screw flying shear equipment control system is difficult to meet this demand. Its fixed shearing size and lack of dynamic adjustment ability make the equipment incapable of handling diversified and small-batch production tasks.

[0004] Therefore, in view of the problem that the existing double-helix flying shear equipment control system cannot flexibly adjust the shearing requirements, resulting in low shearing efficiency and high production costs, it is now necessary to provide a double-helix flying shear control system. Summary of the invention

[0005] The present invention aims to provide a double-helix flying shear control system to solve the problem that the existing double-helix flying shear equipment control system cannot flexibly adjust the shearing demand, resulting in low shearing efficiency and high production cost.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme:

[0007] The present invention is used to provide a system that can control the speed and position of shearing according to different cardboard sizes, so as to achieve shearing of various sizes by dynamically adjusting the speed and position of the tool or roller, improve the versatility of the system, and achieve the timeliness and stability of shearing, reduce the delay in the switching process, make the adjustment more flexible, and improve the shearing accuracy. Specifically, it is a double-spiral flying shear control system, which specifically includes a control unit for inputting shearing tasks and issuing shearing instructions; a monitoring unit for obtaining current cardboard size information and monitoring the speed and position of the flying shear tool and the roller mechanism in real time to form current data; the flying shear tool includes a double-axis spiral shaft and a blade arranged on the spiral shaft; the roller mechanism includes a roller group for transmitting the cardboard; a control unit for generating adjustment data according to the cardboard size information and preset shearing size data, and adjusting and controlling the flying shear tool or the roller mechanism according to the adjustment data; a feedback unit for feeding back the adjustment data to the control center and adjusting the control error based on historical data.

[0008] The principles and advantages of this solution are:

[0009] In the prior art, since the parameters and corresponding operating procedures of the supporting control system have been determined during manufacturing, the sizes that can be cut and produced are also limited to several fixed options. At the same time, because there are compatibility issues in the algorithms and logic of the control system, the compatibility between different devices is poor, and even if they can work together, complex debugging is required, which makes it difficult to operate and has poor stability, making it difficult to implement effectively. In addition, during the shearing process, the stability and safety of the equipment are crucial. Therefore, considering that frequent adjustment of the shearing size may affect the stable operation of the equipment and even cause equipment failure or safety accidents, only presetting the size to a few fixed sizes can also meet the basic production needs, in order to ensure the continuity and safety of the production process, without too much consideration of dynamically adjusting the shearing size. However, this leads to lower and lower production efficiency and higher and higher production costs in the face of small batches and diverse demands.

[0010] Therefore, this solution, based on the consideration of production continuity and safety, controls the rotation speed and relative position of the cutter and the roller in real time to accurately adjust the shearing operation point and the cardboard positioning, thereby achieving speed matching control for cardboards of different specifications. This mechanism supports continuous shearing of cardboards of various sizes without interrupting the production process, significantly enhancing the versatility of the equipment. It ensures the instant response, high precision and stability of the shearing action, effectively reduces the time delay caused by size switching, and improves shearing efficiency. In addition, this flexible adjustment method also promotes the improvement of material utilization, reduces the generation of waste materials, and ultimately achieves a leap in production efficiency and cost savings.

[0011] Furthermore, the monitoring unit includes a tool monitoring module and a roller monitoring module; the tool monitoring module is used to monitor the current rotation speed and tool position of the tool in real time; the roller monitoring module is used to obtain cardboard size information and monitor the current rotation speed of the roller mechanism and the transmission position of the cardboard in real time.

[0012] Furthermore, the regulation unit includes an adjustment module and a control module; the adjustment module is used to calculate the adjustment data based on the current data and the preset data, and transmit the adjustment data to the control module; the control module is used to control the speed and position of the flying scissors or the roller according to the set adjustment method based on the acquired adjustment data.

[0013] Furthermore, the regulating module is also used to dynamically adjust the rotation speed of the roller and the cutter according to the material and size of the cardboard to adaptively adjust the shearing parameters.

[0014] Furthermore, the feedback unit includes a data feedback module and an error feedback module; the data feedback module is used to feed back the acquired speed and position to the control unit; the error feedback module is used to construct an error model based on historical data and perform error compensation on the adjustment data.

[0015] Furthermore, the adjustment data includes tool adjustment data and roller group adjustment data; the tool adjustment data includes tool rotation speed and blade position; the roller group adjustment data includes the rotation speed and position of each roller and the rotation amount of the corresponding roller.

[0016] Furthermore, the adjustment method includes different cutting sizes for cardboards of different sizes and different cutting sizes for cardboards of the same size.

[0017] Furthermore, for different sizes of cardboard, the adjustment amount of the blade position is ΔP1=f(W1,S1)-P0, where W1 is the cardboard width, S1 is the required cutting size, and P0 is the initial position of the blade; the adjustment amount of the blade speed is ΔN1=(V s / V p -1)×N0, where Vs is the shear velocity, V p is the transmission speed of the cardboard, N0 is the initial speed of the blade;

[0018] The adjustment amount of the roller group speed is ΔR1=(V s / (L / T)-1)×R0, where L is the length of the cardboard, T is the time required for the cardboard to pass through the shearing area, and R0 is the initial rotation speed of the roller.

[0019] Furthermore, for the same size of paperboard, the adjustment amount of the blade position is ΔP2=f1(S1)-P0; the adjustment amount of the blade speed is ΔN2=(V s / V p-1)×N0.

[0020] Furthermore, the roller group includes a plurality of conveying rollers arranged side by side, and the adjustment data also includes adjusting the rotation speed and position of a single conveying roller according to the shearing adjustment requirements and in combination with the current cardboard conveying position. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of embodiment 1 of the present invention. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific implementation methods:

[0023] Embodiment 1

[0024] Basically as attached Figure 1 As shown: A double-helix flying shear control system is used to dynamically adjust the rotation speed and position of the cutter and the roller, and then adjust the cutting position and the position of the cardboard to meet the speed control of different cardboard sizes, and realize non-stop shearing of various sizes to improve versatility, ensure the timeliness, accuracy and stability of shearing, reduce the delay caused by switching during shearing, improve shearing efficiency, make adjustment more flexible, reduce the amount of waste, improve production and processing efficiency, and reduce costs. Specifically includes a control unit for inputting shearing tasks and issuing shearing instructions. In this embodiment, the shearing task includes shearing size, shearing quantity, and initial cardboard information, wherein the cardboard information includes cardboard size, cardboard thickness, cardboard material, etc.

[0025] The monitoring unit is used to obtain the current cardboard size information and monitor the speed and position of the flying shears and the roller mechanism in real time to form current data. In this embodiment, the flying shears include a double-axis spiral shaft and a blade arranged on the spiral shaft. The blade is fixed on the blade shaft in a spiral form. When the spiral shaft rotates relatively, the two blades rotate to perform shearing. The roller mechanism includes a roller group for transmitting the cardboard. In this embodiment, the roller group includes at least one conveying roller, and the rotation speed of the roller can be regarded as the conveying speed of the cardboard. In this embodiment, a high-precision servo motor is used to drive the operation of the roller and the flying shears.

[0026] In this embodiment, the monitoring unit includes a tool monitoring module and a roller monitoring module. Among them, the tool monitoring module is used to monitor the current rotation speed and position of the tool in real time. The roller monitoring module is used to obtain the size information of the currently transmitted cardboard and monitor the current rotation speed of the roller mechanism and the transmission position of the cardboard in real time. In this way, the shearing data at the current moment is obtained to form the current data. In this embodiment, a speed sensor and a position sensor can be used to monitor the position and speed of the roller and the tool in real time to ensure the real-time and accuracy of the data.

[0027] The control unit is used to generate adjustment data according to the current cardboard size information and the preset cutting size data, and to adjust and control the flying shear tool or the roller mechanism according to the adjustment data.

[0028] In this embodiment, the adjustment data includes tool adjustment data and roller group adjustment data. The tool adjustment data includes tool rotation speed and blade position; the roller group adjustment data includes the rotation speed and position of each roller and the rotation amount of the corresponding roller.

[0029] Specifically, the control unit includes a control module and a control module. The control module is used to calculate the control data according to the current data and the preset data (ie, the preset cutting size data), and transmit the control data to the control module.

[0030] The control module is used to control the speed and position of the flying shears or the roller according to the acquired adjustment data and the set adjustment method.

[0031] The adjustment methods include different cutting sizes for cardboards of different sizes and different cutting sizes for cardboards of the same size.

[0032] For cardboards of different sizes, when different sizes need to be cut, first determine the information difference of the switched cardboard size based on the current cardboard information obtained, and use this to form new cardboard size information. Calculate the adjustment amount based on the cutting size that needs to be switched. At this time, the speed and position of the tool and roller need to be adjusted for new adaptation. Among them, the adjustment amount of the blade position can be ΔP1=f(W1,S1)-P0, where W1 is the current cardboard width, S1 is the required cutting size, and P0 is the initial position of the blade. The adjustment amount of the blade speed can be ΔN1=(V s / V p -1)×N0, where V s is the current shear velocity, V p is the transmission speed of the cardboard, and N0 is the initial speed of the blade.

[0033] The adjustment amount of the roller group speed can be ΔR1 = (V s / (L / T)-1)×R0, where L is the length of the cardboard, T is the time required for the cardboard to pass through the shearing area, and R0 is the initial rotation speed of the roller.

[0034] For the same size of cardboard, since the size of the cardboard is fixed, it can be regarded as a fixed value. For different cutting size requirements, only the rotation speed and position of the cutter can be adjusted to adapt to the conveying speed of the cardboard, thereby reducing the adjustment amount, reducing the adjustment error, and ensuring the accuracy of cutting. Among them, the adjustment amount of the blade position can be ΔP2=f1(S1)-P0; the adjustment amount of the blade speed can be ΔN2=(V s / V p -1)×N0.

[0035] In this embodiment, the adjustment module is also used to dynamically adjust the rotation speed of the roller and the cutter according to the material and size of the cardboard to adaptively adjust the cutting parameters. In this embodiment, the material of the cardboard can be detected by a set sensor in the transmission path of the cardboard to obtain information such as the material, hardness, thickness, etc. of the cardboard, and the obtained information is sent to the adjustment module.

[0036] The adjustment module performs adaptive adjustment based on the information of cardboard hardness H, thickness E and material M. Since the tool speed is usually related to the hardness H and thickness E of the cardboard, a cardboard with higher hardness requires a lower speed to reduce tool wear, while a cardboard with greater thickness also requires a lower speed to ensure cutting quality and stability. Therefore, the adjustment speed of the tool can be expressed as N'=N b f(H,E); where f(H,E) is the speed adjustment coefficient, which can be flexibly set according to the thickness and hardness of the paperboard; N b is the basic speed, that is, the speed without considering the hardness and thickness of the cardboard. The paper feeding speed of the roller is usually related to the thickness E of the cardboard. Thicker cardboard requires a slower paper feeding speed to ensure cutting quality and tool life, while thinner cardboard can increase the paper feeding speed appropriately to improve production efficiency. Therefore, the adjustable speed of the roller can be expressed as V'=V b g(E), where g(E) is the speed adjustment coefficient, which can be flexibly set according to the thickness of the paperboard; V b It is the basic speed, that is, the paper feeding speed without considering the influence of cardboard thickness.

[0037] Adaptive adjustment can be made according to the cardboard material to achieve precise adjustment of the tool speed and paper feeding speed, which can improve the cutting accuracy, thereby effectively reducing the cutting error and ensuring the cutting efficiency.

[0038] The feedback unit is used to feed back the adjustment data to the control center and adjust the control error based on historical data.

[0039] In this embodiment, the feedback unit includes a data feedback module and an error feedback module. The data feedback module is used to feed back the acquired speed and position to the control unit. The error feedback module is used to build an error model based on historical data and perform error compensation on the adjustment data.

[0040] In this embodiment, historical data is first obtained, including adjustment data of cardboard processing, such as tool speed, paper feeding speed, etc., and corresponding error data, including cutting error, dimensional error, etc. The collected historical data is cleaned and preprocessed to remove abnormal values ​​and missing values ​​to form sample data to ensure the accuracy and completeness of the data.

[0041] Then construct the error model. In this embodiment, the sample data is divided into a training group and a test group. The training group is used for model construction and training, and the test group is used for model testing and optimization. In this embodiment, regression analysis, machine learning algorithms or other statistical methods can be used to construct the error model, and its error model can be expressed as e=f(x)+ε; wherein x is a vector of adjustment data, such as tool speed, drum speed, position, etc.; ε is a random error term. Then, methods such as cross-validation and retention are used to verify the accuracy and generalization ability of the model. According to the verification results, the model parameters are adjusted to obtain a more suitable model, and error compensation is performed to reduce or eliminate errors to improve the accuracy of the adjustment amount. At the same time, in this embodiment, as new data continues to increase, new data will be periodically used to update and optimize the error model to further improve the accuracy and generalization ability of the model.

[0042] In this embodiment, the error feedback module can reduce the error in the cardboard cutting process by constructing an error model and performing error compensation on the adjustment data, thereby improving the cutting accuracy and efficiency, and can be applied to the cutting of cardboards of various sizes and reduce delays.

[0043] Under the current technical framework, the operation of shearing equipment is limited by its control system. These systems are preset with fixed parameters and operating procedures when they are manufactured, resulting in the shearing size being strictly limited to a few options and lacking flexibility. In addition, the control systems of different devices are difficult to achieve seamless docking due to incompatible algorithm logic. Even if they can barely work together, they still need to go through a tedious debugging process, which not only greatly increases the difficulty of operation, but also seriously affects the stability of the system, making it almost impossible to dynamically adjust the shearing size.

[0044] Considering the stability and safety of the equipment during shearing operations, the traditional practice tends to preset the shearing size to a limited number of standard specifications as a stopgap measure to ensure production continuity and safety. However, in response to the growing small-batch and diversified demands of the current market, it is difficult to meet production requirements, resulting in a gradual decline in production efficiency and a continuous increase in costs.

[0045] Therefore, in this embodiment, the rotation speed and relative position of the cutter and the roller are precisely controlled by clever use of real-time regulation, thereby realizing flexible adjustment of the shearing operation point and the cardboard positioning. This innovative mechanism not only breaks the shackles of the size limitation of traditional shearing equipment, but also enables cardboards of various specifications to be continuously sheared without interrupting the production process, greatly improving the versatility and flexibility of the equipment. At the same time, this solution ensures the instant response, high precision and stability of the shearing action, effectively shortens the time loss caused by size switching, and significantly improves the shearing efficiency. It also effectively improves the material utilization rate, reduces the generation of waste materials, reduces material waste, greatly improves production efficiency and saves costs.

[0046] Embodiment 2

[0047] Different from the first embodiment, in this embodiment, the roller group includes a plurality of conveying rollers arranged side by side. The adjustment data also includes adjusting the rotation speed and position of a single conveying roller according to the shearing adjustment requirements and the current cardboard conveying position.

[0048] In this embodiment, the real-time position of the current cardboard on the roller group is obtained through the set sensor. The current rotation speed and relative position of each roller to the cardboard are also obtained. If there is no cardboard on the corresponding roller, the rotation is stopped, that is, the speed is adjusted to 0, and the speed of the roller that needs to be rotated is adjusted. According to the cardboard conveying speed and the cutting length, the target rotation speed that each roller that needs to be rotated should reach is calculated to ensure that the cardboard has the correct speed when it reaches the cutting position, where the target rotation speed V of each roller is i It can be expressed as V i =L j / t i , where L j Expressed as shear length, t i It is expressed as the transfer time, that is, the time required for the cardboard to move from the current position to the cutting position. This time can be calculated based on the cardboard speed and the roller spacing.

[0049] The adjustment amount can be expressed as ΔV = V i -V1, where V1 is the current speed.

[0050] As for the position of the roller, the position of the roller is adjusted according to the width and cutting position of the cardboard transmitted to the current roller to ensure the accuracy and stability of the cutting position.

[0051] In this embodiment, by real-time monitoring of the position and speed of the cardboard, combined with the preset cutting requirements, the rotation speed and position adjustment amount of each roller are calculated, thereby ensuring the timeliness and stability of the adjustment, ensuring the accurate cutting of the cardboard, and effectively reducing ineffective driving, reducing energy consumption, improving production reliability and safety, and thus reducing production costs.

[0052] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A double-helix flying shear control system, characterized in that: It includes a control unit for inputting cutting tasks and issuing cutting instructions; a monitoring unit for obtaining current cardboard size information and monitoring the speed and position of the flying shears and roller mechanism in real time to form current data; the flying shears include a double-axis spiral shaft and a blade arranged on the spiral shaft; the roller mechanism includes a roller group for transmitting cardboard; A control unit is used to generate adjustment data according to the cardboard size information and the preset cutting size data, and to adjust and control the flying shear tool or the roller mechanism according to the adjustment data; The feedback unit is used to feed back the adjustment data to the control center and adjust the control error based on historical data.

2. A double-helix flying shear control system according to claim 1, characterized in that: The monitoring unit includes a tool monitoring module and a roller monitoring module; the tool monitoring module is used to monitor the current rotation speed and tool position of the tool in real time; the roller monitoring module is used to obtain cardboard size information and monitor the current rotation speed of the roller mechanism and the transmission position of the cardboard in real time.

3. A double-helix flying shear control system according to claim 1, characterized in that: The control unit includes an adjustment module and a control module; the adjustment module is used to calculate the adjustment data according to the current data and the preset data, and transmit the adjustment data to the control module; the control module is used to control the speed and position of the flying scissors or the roller according to the set adjustment method based on the acquired adjustment data.

4. A double-helix flying shear control system according to claim 3, characterized in that: The regulating module is also used to dynamically adjust the rotation speed of the roller and the cutter according to the material and size of the paperboard to adaptively adjust the shearing parameters.

5. A double-helix flying shear control system according to claim 1, characterized in that: The feedback unit includes a data feedback module and an error feedback module; the data feedback module is used to feed back the acquired speed and position to the control unit; the error feedback module is used to construct an error model according to historical data and perform error compensation on the adjustment data.

6. A double-helix flying shear control system according to claim 3, characterized in that: The adjustment data includes tool adjustment data and roller group adjustment data; the tool adjustment data includes tool rotation speed and blade position; the roller group adjustment data includes the rotation speed and position of each roller and the rotation amount of the corresponding roller.

7. A double-helix flying shear control system according to claim 6, characterized in that: The adjustment method includes different cutting sizes for cardboards of different sizes and different cutting sizes for cardboards of the same size.

8. A double-helix flying shear control system according to claim 7, characterized in that: For different sizes of cardboard, the adjustment amount of the blade position is ΔP1=f(W1,S1)-P0, where W1 is the cardboard width, S1 is the required cutting size, and P0 is the initial position of the blade; the adjustment amount of the blade speed is ΔN1=(Vs / Vp-1)×N0, where Vs is the cutting speed, V p is the transmission speed of the cardboard, N0 is the initial speed of the blade; The adjustment amount of the roller group speed is ΔR1=(V s / (L / T)-1)×R0, where L is the length of the cardboard, T is the time required for the cardboard to pass through the shearing area, and R0 is the initial rotation speed of the roller.

9. A double-helix flying shear control system according to claim 7, characterized in that: For the same size of cardboard, the adjustment amount of the blade position is ΔP2=f1(S1)-P0; the adjustment amount of the blade speed is ΔN2=(V s / V p -1)×N0.

10. A double-helix flying shear control system according to claim 6, characterized in that: The roller group includes a plurality of conveying rollers arranged side by side, and the adjustment data also includes adjusting the rotation speed and position of each conveying roller according to the shearing adjustment requirements and in combination with the current cardboard conveying position.

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