Apparatus for intelligent control of an extruder and method of control thereof

Abstract

The application discloses a device for intelligently controlling an extruder and a control method thereof, and belongs to the technical field of material processing equipment. In order to provide an intelligent driving control system of the extruder, a digital quantity output port Q1 of a PLCnet is connected with a hydraulic cylinder, a digital quantity output port Q2 is connected with a solenoid valve, a digital quantity output port Q3 is connected with a main motor starting signal interface, an analog quantity output port AQ4 of the PLCnet is connected with a main motor speed regulating signal interface, an analog quantity output port AQ5 of the PLCnet is connected with a pneumatic pressure valve, an analog quantity input port AI1 of the PLCnet is connected with a pressure sensor, an analog quantity input port AI3 of the PLCnet is connected with a main motor speed regulating sensor, a switching quantity port I5 of the PLCnet is connected with a safety relay, a switching quantity port I6 of the PLCnet is connected with a starting button, and a switching quantity port I7 of the PLCnet is connected with a stopping button. A network port of the PLCnet is connected with a touch screen.

Description

Technical Field

[0001] This invention belongs to the field of material processing equipment technology, specifically relating to a device and control method for an intelligent control extruder. Background Technology

[0002] Traditional extrusion presses rely heavily on the experience and skills of operators during production, making it impossible to meet the demands for highly automated and intelligent production. This results in low production efficiency and inconsistent product quality. With industrial development, the market demand for efficient and intelligent production equipment is growing daily. Summary of the Invention

[0003] The problem to be solved by the present invention is to provide an intelligent drive control system for an extruder, and to propose an intelligent control device and control method for an extruder.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A device for intelligently controlling an extruder includes a PLCnet. The digital output port Q1 of the PLCnet is connected to a hydraulic cylinder; the digital output port Q2 of the PLCnet is connected to a solenoid valve; the digital output port Q3 of the PLCnet is connected to a main motor start signal interface; the analog output port AQ4 of the PLCnet is connected to a main motor speed control signal interface; the analog output port AQ5 of the PLCnet is connected to a pneumatic pressure valve; the analog input port AI1 of the PLCnet is connected to a pressure sensor; the analog input port AI3 of the PLCnet is connected to a main motor speed control sensor; the digital input port I5 of the PLCnet is connected to a safety relay; the digital input port I6 of the PLCnet is connected to a start button; and the digital input port I7 of the PLCnet is connected to a stop button. The PLCnet network port is connected to the touch screen.

[0005] Furthermore, the model of the PLCne is CPU 1215DC / DC / DC SIPLUS.

[0006] Furthermore, the digital input and digital output units in the PLCnet are used to control the start-up, stop, and external safety of the zinc-clad steel production line; the analog input and analog output units in the PLCnet are used to detect the pressure values ​​of the pressure sensor.

[0007] Furthermore, the touchscreen is model KTP600 Basic.

[0008] A control method for an intelligent control extruder device is implemented based on the aforementioned intelligent control extruder device. The PLCnet digital input unit and digital output unit control the start-up, stop, and external safety of the zinc-clad steel production line. The Boolean algebraic formula for external signal processing through internal logic control is as follows: F = (A AND NOT B) AND NOT C Where F is the value of the Q3 signal, A is the value of the I6 signal, B is the value of the I7 signal, and C is the value of the I5 signal; Set switch quantity I5 as the safety relay signal, switch quantity I6 as the equipment start signal, and switch quantity I7 as the stop signal; when switch quantity I6 is high, when I6 input is 1, when stop signal I7 is 0, and when safety relay I5 is 0, the main motor controlled by output unit Q3 starts; after the main motor starts, according to the above formula, the solenoid valve controlled by Q2 also starts at the same time, completing the operation of the extruder.

[0009] Furthermore, the analog input unit and analog output unit of PLCnet are connected to pressure sensors to detect the pressure values ​​of the hydraulic cylinder; the pressure sensors are installed on the hydraulic cylinder.

[0010] Furthermore, the analog current signal is set to 0-10V, and the signal data corresponding to 0-10V is obtained as 0-32767 through the internal proportional algorithm.

[0011] Furthermore, it connects to the touchscreen via industrial Ethernet to operate field equipment and set processing pressure values; When the analog input AI1 receives a 0-10V voltage signal from the pressure sensor, PLCnet receives the signal and scales the input value according to a certain ratio using a formula to obtain an output signal that meets the actual engineering requirements. The expression is:

[0012] Where VALUE represents the value to be scaled, MIN and MAX represent the minimum and maximum values ​​of the original value, respectively, and OUT represents the scaled result; by setting the scaling factor and offset, precise control and adjustment of the analog signal can be achieved.

[0013] The beneficial effects of this invention are: The present invention discloses an intelligent control device for an extruder, which improves production efficiency, reduces manual intervention, speeds up production, and increases equipment utilization.

[0014] The present invention discloses an intelligent control extruder device that ensures product quality, precisely controls extrusion parameters, and ensures consistent quality of each product.

[0015] The present invention discloses an intelligent control device for an extruder, which reduces energy consumption, optimizes control strategies to reduce ineffective power consumption, and achieves green production.

[0016] The device for intelligent control of an extruder described in this invention enhances operational convenience, provides an intuitive and easy-to-use human-machine interface, and simplifies the operation process.

[0017] The present invention discloses an intelligent control device for an extruder that supports remote monitoring, enabling remote monitoring and maintenance of the equipment via a network, thereby improving management efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an intelligent control extruder according to the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described specific embodiments are merely a part of the embodiments of the invention, and not all of them. The components of the specific embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations, and the invention may also have other embodiments.

[0020] Therefore, the following detailed description of specific embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected specific embodiments of the invention. All other specific embodiments obtained by those skilled in the art based on these specific embodiments without inventive effort are within the scope of protection of this invention.

[0021] To further understand the invention's content, features, and effects, the following specific embodiments are provided, along with accompanying drawings. Figure 1 Detailed explanation is as follows:

[0022] Example 1: A device for intelligently controlling an extruder includes a PLCnet1. The digital output port Q1 of the PLCnet1 is connected to a hydraulic cylinder 2. The digital output port Q2 of the PLCnet1 is connected to a solenoid valve 3. The digital output port Q3 of the PLCnet1 is connected to a main motor start signal interface 4. The analog output port AQ4 of the PLCnet1 is connected to a main motor speed control signal interface 5. The analog output port AQ5 of the PLCnet1 is connected to a pneumatic pressure valve 6. The analog input port AI1 of the PLCnet1 is connected to a pressure sensor 7. The analog input port AI3 of the PLCnet1 is connected to a main motor speed control sensor 8. The digital input port I5 of the PLCnet1 is connected to a safety relay 9. The digital input port I6 of the PLCnet1 is connected to a start button 10. The digital input port I7 of the PLCnet1 is connected to a stop button 11. The network port 12 of PLCnet1 is connected to the touch screen 13.

[0023] Furthermore, the model of PLCnet1 is CPU 1215DC / DC / DC SIPLUS.

[0024] Furthermore, the digital input unit and digital output unit in PLCnet1 are used to control the start-up, stop, and external safety of the zinc-clad steel production line; the analog input and analog output units in PLCnet1 are used to detect the pressure values ​​of the pressure sensor.

[0025] Furthermore, the touchscreen 13 is model KTP600 Basic.

[0026] Example 2: A control method for an intelligent control extruder device is implemented based on the intelligent control extruder device described in Example 1. The digital input unit and digital output unit of PLCnet control the start-up, stop, and external safety of the zinc-clad steel production line. The Boolean algebraic formula for external signal processing through internal logic control is as follows: F = (A AND NOT B) AND NOT C Where F is the value of the Q3 signal, A is the value of the I6 signal, B is the value of the I7 signal, and C is the value of the I5 signal; Set switch quantity I5 as the safety relay signal, switch quantity I6 as the equipment start signal, and switch quantity I7 as the stop signal; when switch quantity I6 is high, when I6 input is 1, when stop signal I7 is 0, and when safety relay I5 is 0, the main motor controlled by output unit Q3 starts; after the main motor starts, according to the above formula, the solenoid valve controlled by Q2 also starts at the same time, completing the operation of the extruder.

[0027] Furthermore, the analog input unit and analog output unit of PLCnet are connected to pressure sensors to detect the pressure values ​​of the hydraulic cylinder; the pressure sensors are installed on the hydraulic cylinder.

[0028] Furthermore, the analog current signal is set to 0-10V, and the signal data corresponding to 0-10V is obtained as 0-32767 through the internal proportional algorithm.

[0029] Furthermore, it connects to the touchscreen via industrial Ethernet to operate field equipment and set processing pressure values; When the analog input AI1 receives a 0-10V voltage signal from the pressure sensor, PLCnet receives the signal and scales the input value according to a certain ratio using a formula to obtain an output signal that meets the actual engineering requirements. The expression is:

[0030] Where VALUE represents the value to be scaled, MIN and MAX represent the minimum and maximum values ​​of the original value, respectively, and OUT represents the scaled result; by setting the scaling factor and offset, precise control and adjustment of the analog signal can be achieved.

[0031] Furthermore, in practical applications, the parameter values ​​need to be determined based on specific application scenarios and requirements. For example, if the original value ranges from 0 to 100, and the scaled value ranges from 0 to 10, then the scaling ratio is 10 / 100 = 0.1. This yields the corresponding control output value to control the pressure of the zinc-clad steel extruder. The analog output unit, connected to the pressure transmitter and analog input unit, generates corresponding analog commands (0-10V voltage signals) based on the pressure parameters and real-time action signals to operate the pneumatic pressure valve PW1 and the hydraulic cylinder, adjusting the extrusion pressure to meet the zinc layer thickness requirements. The analog unit is correctly connected to the main motor. The output terminals of the analog unit are connected to the corresponding input terminals of the main motor controller. The correspondence between the analog input signal and the main motor speed needs to be set. For example, 0V can be set to correspond to 0 rpm, 10V to 3000 rpm, etc. Thus, when the analog input signal is changed, the main motor speed will change accordingly, adjusting the host machine speed.

[0032] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although this application has been described above with reference to specific embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of this application. In particular, as long as there is no structural conflict, the features in the specific embodiments disclosed in this application can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, this application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A device for intelligently controlling an extruder, characterized in that, The system includes a PLCnet (1), where the digital output port Q1 of the PLCnet (1) is connected to a hydraulic cylinder (2), the digital output port Q2 of the PLCnet (1) is connected to a solenoid valve (3), the digital output port Q3 of the PLCnet (1) is connected to a main motor start signal interface (4), the analog output port AQ4 of the PLCnet (1) is connected to a main motor speed control signal interface (5), the analog output port AQ5 of the PLCnet (1) is connected to a pneumatic pressure valve (6), the analog input port AI1 of the PLCnet (1) is connected to a pressure sensor (7), the analog input port AI3 of the PLCnet (1) is connected to a main motor speed control sensor (8), the digital input port I5 of the PLCnet (1) is connected to a safety relay (9), the digital input port I6 of the PLCnet (1) is connected to a start button (10), and the digital input port I7 of the PLCnet (1) is connected to a stop button (11). The network port (12) of the PLCnet (1) is connected to the touch screen (13).

2. The device for intelligent control of an extruder according to claim 1, characterized in that, The model of the PLCnet (1) is: CPU 1215DC / DC / DC SIPLUS.

3. The device for intelligent control of an extruder according to claim 2, characterized in that, The digital input unit and digital output unit in the PLCnet (1) are used to control the start-up, stop and external safety of the zinc-clad steel production line; the analog input and analog output units in the PLCnet (1) are used to detect the pressure value of the pressure sensor.

4. The device for intelligent control of an extruder according to claim 3, characterized in that, The touchscreen (13) is model KTP600 Basic.

5. A control method for an intelligent control extruder, implemented using the intelligent control extruder device according to any one of claims 1-4, characterized in that, The PLCnet digital input and digital output units control the start-up, stop, and external safety of the zinc-clad steel production line; The Boolean algebraic formula for external signal processing through internal logic control is as follows: F = (A AND NOT B) AND NOT C Where F is the value of the Q3 signal, A is the value of the I6 signal, B is the value of the I7 signal, and C is the value of the I5 signal; Set switch quantity I5 as the safety relay signal, switch quantity I6 as the equipment start signal, and switch quantity I7 as the stop signal; when switch quantity I6 is high, when I6 input is 1, when stop signal I7 is 0, and when safety relay I5 is 0, the main motor controlled by output unit Q3 starts; after the main motor starts, according to the above formula, the solenoid valve controlled by Q2 also starts at the same time, completing the operation of the extruder.

6. The control method of the intelligent control extruder device according to claim 5, characterized in that, The PLCnet analog input unit and analog output unit are connected to a pressure sensor to detect the pressure value of the hydraulic cylinder; the pressure sensor is installed on the hydraulic cylinder.

7. The control method of the intelligent control extruder device according to claim 6, characterized in that, The analog current signal is set to 0-10V, and the signal data corresponding to 0-10V is obtained as 0-32767 through the internal proportional algorithm.

8. The control method of the intelligent control extruder device according to claim 7, characterized in that, Connect to the touchscreen via industrial Ethernet to operate field equipment and set processing pressure values; When the analog input AI1 receives a 0-10V voltage signal from the pressure sensor, PLCnet receives the signal and scales the input value according to a certain ratio using a formula to obtain an output signal that meets the actual engineering requirements. The expression is: Where VALUE represents the value to be scaled, MIN and MAX represent the minimum and maximum values ​​of the original value, respectively, and OUT represents the scaled result; by setting the scaling factor and offset, precise control and adjustment of the analog signal can be achieved.

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