Control system of multifunctional mixer

Abstract

The utility model discloses a control system of a multifunctional blender mixer, which comprises a PLC (Programmable Logic Controller) control unit, a storage tank for storing materials and a blender mixer, the blender mixer is provided with a feed port and comprises a rotatable mixing disc, a rotatable rotor is arranged in the mixing disc, and the feed port is communicated with the storage tank. The PLC control unit comprises a discharging amount control unit, a mixing control unit, a granulation control unit, a process monitoring unit and a safety protection unit, the discharging amount control unit can control the discharging amount conveyed to the mixer by the storage tank, and the mixing control unit can control the mixing process of the mixer. The granulation control unit can control the granulation process of the material mixer, the process monitoring unit can monitor the working process of the material mixer, and the safety protection unit can protect the safety of the operation process of the material mixer. The utility model has the advantages that the mixing proportion can be adjusted in time, the stability of mixing and granulating effects is ensured, the safety is ensured, the production efficiency is improved, and the like.

Description

Technical Field

[0001] The utility model relates to the field of mixing equipment, in particular to a control system of a multifunctional mixing machine. Background Art

[0002] A mixer is a machine for mixing materials, which includes a rotating mixing disk and a rotor rotating in the mixing disk. The rotor can rotate to stir the materials in the rotating disk. In the prior art, the mixing disk and rotor of the mixer are mixed at high speeds and granulated at low speeds. In actual production, the rotation speed cannot be accurately controlled, the rotation time needs to be manually adjusted, the metering of the input materials is inaccurate, it is difficult to ensure the quality of the finished product, a large amount of manpower is required for monitoring and maintenance, and the production efficiency is low. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a control system for a multifunctional mixer which can accurately control the production process of the mixer.

[0004] In order to solve the above technical problems, the utility model includes a PLC control unit, a storage tank for storing materials and a mixer, and its structural characteristics are: the mixer is provided with a feed port, the mixer includes a rotatable mixing disk, the mixing disk is provided with a rotatable rotor, the material in the storage tank can enter the mixing disk of the mixer through the feed port, the PLC control unit includes a feed quantity control unit, a mixing control unit, a granulation control unit, a process monitoring unit and a safety protection unit, the feed quantity control unit can control the feed quantity delivered from the storage tank to the mixer, the mixing control unit can control the mixing process of the mixer, the granulation control unit can control the granulation process of the mixer, the process monitoring unit can monitor the working process of the mixer, and the safety protection unit can protect the safety of the operation process of the mixer.

[0005] After adopting the above structure, the PLC control unit controls each unit to regulate the storage tank and the mixer, and the discharge amount control unit controls the discharge amount of the material in the storage tank entering the mixer. By controlling the discharge amount of the material in each storage tank separately, the material mixing ratio is accurately controlled to ensure the accurate proportion of the materials and the quality of production. Then, the mixing control unit is turned on for mixing, or the granulation control unit is turned on to directly granulate, or the mixing control unit and the granulation control unit are turned on together to mix the materials first and then granulate them to meet different production needs and improve production efficiency. In the production project, the process monitoring unit monitors the materials being produced in the mixer to understand key parameters such as the material status, and then gives feedback to the PLC monitoring unit to timely adjust the material status, speed and mixing granulation time, so as to ensure the stability of the mixing and granulation effects. The safety protection unit ensures the safe operation of the equipment and the safety of the production process.

[0006] The storage tank is provided with a discharge port, a pneumatic regulating valve is arranged on the discharge port, a weighing sensor is installed on the storage tank, the feed port is connected with the discharge ports of a plurality of storage tanks, and the discharge quantity control unit can receive the weighing sensor signal and control the opening or closing of the pneumatic regulating valve at the same time. After the pneumatic regulating valve is opened by the discharge quantity control unit, the material falls into the mixer through the discharge port. After the material is discharged, the weighing sensor on the storage tank detects the change in the weight of the material in the storage tank, transmits a signal to the discharge quantity control unit, and then determines the weight of the discharged material. When the required amount of material is reached, the discharge quantity control unit closes the pneumatic regulating valve, and controls a plurality of different storage tanks through the discharge quantity control unit, and then controls the amount of different materials or water discharged, so as to achieve the effect of accurately controlling the proportion and ensure the quality of production.

[0007] The mixer is equipped with a moisture detection sensor, which can detect the moisture content of the material in the mixer. The granulation control unit can receive the moisture detection sensor signal. The bottom of the mixer is provided with a discharge door that can be opened / closed. The mixing control unit can control the rotation time of the rotor and the mixing disk, the rotation speed of the rotor and the mixing disk, and the opening or closing of the discharge door.

[0008] The mixer is equipped with a moisture detection sensor, which can detect the moisture content of the material in the mixer. The granulation control unit can receive the moisture detection sensor signal. The bottom of the mixer is provided with a discharge door that can be opened / closed. The granulation control unit can control the rotation time of the rotor and the mixing disk, the rotation speed of the rotor and the mixing disk, and the opening or closing of the discharge door.

[0009] After adopting the above structure, after the material is fed into the mixer, the rotor motor and the mixing disk motor are controlled by the mixing control unit, and then the rotation time and rotation speed of the rotor and the mixing disk are controlled, so that they all rotate at high speed, the centrifugal force generated is large, and the mixing process of the material is completed by rotating for a corresponding time. After completion, the discharge door is controlled to open and the mixed material is discharged; when granulation is required, the mixed dry material is put in, water is added, and the rotor motor and the mixing disk motor are controlled by the granulation control unit to make the rotor and the mixing disk rotate at a low speed to complete the material granulation process, and the moisture signal of the material is transmitted to the PLC controller through the moisture control sensor. The PLC controller controls the feeding amount control unit to transport material or water into the mixing box to adjust the moisture in the mixer, and the rotation speed and rotation time of the rotor and the mixing disk controlled by the granulation control unit are guaranteed to ensure the strength and diameter of the material ball; at the same time, the mixing control unit can be used to mix the materials first, and the granulation control unit can be used to control the granulation after the mixing is completed, so as to realize the integrated work of mixing and granulation, improve the convenience of production and improve the production efficiency.

[0010] The mixer is equipped with monitoring, and the process monitoring unit can analyze the monitoring screen for image processing. The process monitoring unit can feedback the signal to the PLC control unit, and adjust at any time through process monitoring, thereby ensuring the production quality and the stability of the mixing and granulation effects.

[0011] The safety protection unit can receive a fault alarm signal, and the safety protection unit can feed back a signal to the PLC control unit. After a fault occurs, the PLC control unit can promptly control and stop processing, thereby ensuring safety during the processing.

[0012] In summary, the utility model has the advantages of timely adjusting the mixing ratio, ensuring the stability of the mixing and granulation effects, ensuring safety, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the structure of the intermediate storage tank;

[0015] Figure 3 for Figure 1 Schematic diagram of the structure of the intermediate mixer;

[0016] Figure 4 is a schematic diagram of the structure of the rotor and the rotor frame;

[0017] Figure 5 This is a flow chart of the PLC control unit control;

[0018] Figure 6 It is a control flow chart of the material feeding amount control unit;

[0019] Figure 7 It is the control flow chart of the mixing control unit and the material making control unit. DETAILED DESCRIPTION

[0020] like Figure 1-7As shown, a control system of a multifunctional mixer includes a PLC control cabinet 3, a material storage tank 1 for storing materials, and a multifunctional mixer 2 capable of mixing and granulating. The multifunctional mixer 2 can realize granulation and mixing, and the granulation function and the mixing function of the multifunctional mixer 2 can be used separately or simultaneously. The PLC control unit integrates and adjusts various signals in the control system to ensure the required input and output of materials and the time and speed of granulation and mixing. A PLC control unit is arranged in the PLC control cabinet 3. The PLC control unit includes a feed quantity control unit, a mixing control unit, a material making control unit, a process monitoring unit and a safety protection unit. The feed quantity control unit controls the amount of material entering the multifunctional mixer 2 to ensure the accuracy of the material ratio. The mixing control unit performs on-site accurate ratio premixing of the equipment through the equipment control end to mix the materials evenly. The material making control unit controls the rotation speed and rotation time of the mixer 2 according to the required granulation diameter, and then adjusts the size of the granulation to meet different production needs. During the processing, the process monitoring unit monitors the operation of the mixer 2 in real time to ensure the state of the material in the granulator, so that the operator can adjust the mixing or granulation effect in time, ensuring the stability and quality of the finished product. The safety protection unit ensures the safe operation of the equipment during the loading and transportation process, ensuring safety.

[0021] like Figure 1-7 As shown, the storage tank 1 can be one or more, and different materials or mixed materials can be stored in the storage tank 1. A discharge port 12 connected to the discharge port is provided at the bottom of the storage tank 1. A pneumatic regulating valve 13 that can be opened / closed is provided on the discharge port 12. A monitor 3 is installed at the discharge port 12. The discharge port 12 is monitored by the monitor 3. When the discharge port 12 is blocked, the monitor 3 gives timely feedback to ensure the stability of the material discharged from the storage tank 1. A feed port is provided at the upper end of the mixer 2, and a discharge door that can be opened / closed is provided at the lower end of the mixer 2. An electric push rod 24 is installed at the bottom of the discharge door, and the discharge door is opened or closed by the extension / contraction of the electric push rod 24. The mixer 2 includes a frame, and a rotatable mixing disk and a rotor located in the mixing disk that can scrape the material in the mixing disk are provided on the frame. A rotor frame 26 is installed on the frame, and the rotor frame 26 is located above the mixing disk. The rotor is extended inward from the opening of the mixing disk. A rotor motor 22 is installed on the rotor frame 26, and the rotor is driven to rotate by the rotor motor 22. A mixing disk motor 21 is provided at the bottom of the frame, and the mixing disk is driven to rotate by the mixing disk motor 21. The feed port 12 of the storage tank 1 is connected to the feed port of the mixer 2. After the pneumatic regulating valve 13 of the storage tank 1 is opened, the material in the storage tank 1 enters the mixing disk of the mixer 2.

[0022] like Figure 1 , 2As shown in Figure 5, a weighing sensor 11 is installed on the storage tank 1. The material discharge control unit can receive the weighing signal of the weighing sensor, and control the pneumatic regulating valve 13 at the material discharge port of the storage tank 1, skip adjusting the opening or closing of the pneumatic regulating valve 13, and adjust the amount of material discharge. The material in the storage tank 1 is weighed by the weighing sensor 11, and then the weighing signal is transmitted. The output of the material is controlled by opening and closing the pneumatic regulating valve 13. The amount of material output is determined by the weighing sensor 11, and then the signal is fed back. After the signal is fed back, the pneumatic regulating valve 13 is adjusted to control the amount of material output, thereby ensuring the accuracy of the output material amount and achieving the effect of precise regulation.

[0023] like Figure 1 , 3 -7, a moisture detection sensor 23 is installed on the side wall of the mixer. When the rotation speed of the mixing disc and the rotor is high, the materials can be mixed evenly, and when the rotation speed is low, larger particles are formed to complete the granulation process. The moisture content of the materials mixed in the mixer 2 can be monitored by the moisture detection sensor 23, and the moisture content during mixing and granulation can be accurately controlled. The rotor frame 26 is equipped with a monitor 3, through which the mixing process in the mixer can be seen, and the monitoring signal is transmitted to the PLC control unit.

[0024] like Figure 1 , 3 -7, the mixing control unit is electrically connected to the rotor motor 22 and the mixing disk motor 21, and the mixing control unit can control the rotor motor 22 and the mixing disk motor 21, thereby driving the rotor and the mixing disk to rotate. The mixing control unit controls the rotation height of the rotor and the mixing disk, and controls the stirring time at the same time. The high-speed rotation mixes the materials in the mixing disk evenly to meet the mixing requirements. After the stirring is completed, the discharge door is opened by the electric push rod 24, the mixed material is discharged, and the discharge time is calculated. After the time is up, the discharge door is closed, completing the automation of the mixing process and improving the intelligence level of the equipment.

[0025] like Figure 1 , 3 -7, the material making control unit is electrically connected to the rotor motor 22 and the mixing disk motor 21, and the material making control unit can control the rotor motor 22 and the mixing disk motor 21, thereby driving the rotor and the mixing disk to rotate. The material making control unit controls the rotation of the rotor motor 22 and the mixing disk motor 21, reduces the rotation speed of the rotor and the mixing disk, and makes the mixer 2 in a low-frequency operation process. The material is controlled to rotate internally to form particles, and then the rotation time of the rotor and the mixing disk is controlled to control the diameter of the granulation. After the granulation is completed, the discharge door is opened by the electric push rod 24, the mixed particles are discharged, and the discharge time is calculated. After the time is up, the discharge door is closed to complete the whole granulation process.

[0026] like Figure 1 , 2 As shown in , 5 and 6, the material in the storage tank is fed to the mixing disk of the mixer 2 through the feeding amount control unit. When mixing is required, the mixing control unit transmits an electrical signal to the rotor motor 22 and the mixing disk motor 21. The rotation of the rotor and the mixing disk makes them rotate at high speed, generating a large centrifugal force. The rotor rotates for a corresponding time to complete the mixing process. After completion, the discharge door is controlled to open and the mixed material is discharged. When granulation is required, the mixed dry material is put in, and water is added. The granulation control unit transmits an electrical signal to the rotor motor 22 and the mixing disk motor 21 to control the rotor and the mixing disk to rotate at a low speed, stir the material for granulation, and transmits the moisture signal of the material to the PLC controller through the moisture control sensor. The PLC controller controls the feeding amount control unit to feed the material or water to adjust the moisture in the mixer 2. At the same time, the situation in the mixing disk is monitored and analyzed through the monitoring 3, and the rotation speed and rotation time of the rotor motor 22 and the mixing disk motor 23 are adjusted through the granulation control unit to ensure the strength and diameter of the material ball. At the same time, the mixing control unit can be used to mix the materials first, and the granulation control unit is used to control the granulation after the mixing is completed, which improves the convenience of production while improving the production efficiency.

[0027] like Figure 1-5 As shown, during the operation of the mixer 2, the monitor 3 performs real-time monitoring of the inside of the mixer 2. The process monitoring unit processes the monitoring signal through image processing technology, and can read the mixing or granulation situation in the running state, and feedback the signal to the PLC control unit, and adjust the rotation speed or rotation time of the mixer 2 at any time through process monitoring, so as to achieve a real-time adjustment state, thereby ensuring the stability of the mixing and granulation effects.

[0028] like Figure 1-5 As shown, the safety protection unit can receive fault alarm signals, and the safety protection unit can feedback signals to the PLC control unit. After a fault occurs, the PLC control unit can promptly control the processing to stop. A safety door 25 is installed on the side of the mixer 2, and the safety door 25 can be opened and closed to perform maintenance and adjustment of the equipment, thereby ensuring safety during the processing.

[0029] like Figure 1-7As shown, in the control system of the multifunctional mixer, the PLC control unit controls the feeding amount control unit to send an electrical signal to open the pneumatic regulating valve 13 of the feeding port 12 of the storage tank 1, and the material in the storage tank 1 falls into the mixer 2 through the feeding port 12. At this time, the weighing sensor 11 on the storage tank 1 weighs the storage tank 1 and sends a weighing signal. The amount of material delivered to the mixer 2 is fed back through the number of weight reduction of the material in the storage tank 1. When the material falls to the required amount, the feeding amount control unit controls the pneumatic regulating valve 13 of the corresponding storage tank 1 to close. Then, according to the needs of production, the PLC control unit controls the mixing control unit or the material making control unit to mix or granulate or mix and granulate in one. The mixing control unit or the material making control unit controls the rotor motor 22 and the mixing disk motor 21 to rotate the rotor and the mixing disk. When rotating at high speed, the materials are mixed, and when moving at low speed, the materials are granulated. The mixer 2 is equipped with a moisture detection sensor 23, which detects the moisture content of the material in the mixer 2, and then adjusts the content of the material and water in the mixer 2 through the feeding control unit, and then adjusts the ratio of each material to ensure the material mixing ratio and the diameter of the granulation. At the same time, a monitor 3 is installed on the rotor frame 26, and the monitor 3 takes pictures of the internal mixing screen, and feeds back the monitoring signal to the PLC control unit. The process monitoring unit analyzes the monitoring screen and feeds back to the mixing control unit or the material control unit, and then adjusts the rotation speed and time of the rotor and the mixing disk to ensure the quality of the finished product.

Claims

1. A control system for a multifunctional mixer, comprising a PLC control unit, a material storage tank (1) for storing materials, and a mixer (2), wherein: The mixer (2) is provided with a feed inlet, the mixer (2) comprises a rotatable mixing disk, the mixing disk is provided with a rotatable rotor, the material in the storage tank (1) can enter the mixing disk of the mixer (2) through the feed inlet, the PLC control unit comprises a feed amount control unit, a mixing control unit, a granulation control unit, a process monitoring unit and a safety protection unit, the feed amount control unit can control the feed amount of the storage tank (1) to the mixer (2), the mixing control unit can control the mixing process of the mixer (2), the granulation control unit can control the granulation process of the mixer (2), the process monitoring unit can monitor the working process of the mixer (2), and the safety protection unit can protect the safety of the mixer (2) during operation.

2. The control system of the multifunctional mixer as claimed in claim 1, characterized in that: The material storage tank (1) is provided with a discharge port (12), and a pneumatic regulating valve (13) is provided on the discharge port (12). A weighing sensor (11) is installed on the material storage tank (1), and the feed port is connected to the discharge ports (12) of a plurality of material storage tanks (1). The discharge quantity control unit can receive a signal from the weighing sensor (11) and control the opening or closing of the pneumatic regulating valve (13) at the same time.

3. The control system of the multifunctional mixer according to claim 1, characterized in that: The mixer (2) is equipped with a moisture detection sensor (23), the moisture detection sensor (23) can detect the moisture content of the material in the mixer, the granulation control unit can receive a signal from the moisture detection sensor (23), the bottom of the mixer (2) is provided with a discharge door that can be opened / closed, and the mixing control unit can control the rotation time of the rotor and the mixing disk, the rotation speed of the rotor and the mixing disk, and the opening or closing of the discharge door.

4. The control system of the multifunctional mixer according to claim 1, characterized in that: The mixer (2) is equipped with a moisture detection sensor (23), the moisture detection sensor (23) can detect the moisture content of the material in the mixer, the granulation control unit can receive a signal from the moisture detection sensor (23), a discharge door that can be opened / closed is provided at the bottom of the mixer (2), and the granulation control unit can control the rotation time of the rotor and the mixing disk, the rotation speed of the rotor and the mixing disk, and the opening or closing of the discharge door.

5. The control system of the multifunctional mixer according to claim 1, characterized in that: The mixer (2) is provided with a monitor (3), and the process monitoring unit can analyze the monitored screen to process the image, and the process monitoring unit can feed back a signal to the PLC control unit.

6. The control system of the multifunctional mixer according to claim 1, characterized in that: The safety protection unit can receive a fault alarm signal, and the safety protection unit can feed back a signal to the PLC control unit.

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