Tobacco shred metering and conveying control unit practical training platform

Abstract

The utility model discloses a practical training platform for a tobacco shred metering and conveying control unit. The practical training platform comprises a PLC (Programmable Logic Controller), a switch, a frequency converter, a three-phase asynchronous motor, a fork-shaped photoelectric switch, a correlation photoelectric switch and a baffle plate, the PLC is sequentially connected in series with the switch, the frequency converter and the three-phase asynchronous motor in a signal manner; the fork-shaped photoelectric switch and the correlation photoelectric switch are respectively connected with the PLC in a signal manner; the height of the baffle can be adjusted up and down, the correlation photoelectric switch detects the height position of the baffle, and the fork-shaped photoelectric switch detects the rotating speed of the three-phase asynchronous motor. According to the utility model, the three-phase asynchronous motor simulates the conveying belt to convey tobacco shreds, the baffle plate simulates the amount of tobacco shreds in the stock bin, and the blowing solenoid valve simulates the application scene of opening and closing control of the air nozzle, so that electrical maintenance personnel can intuitively understand a signal control system conveniently, and meanwhile, the influence on production tasks due to on-site shutdown practical operation learning can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of practical training device, more particularly, the utility model relates to a cut tobacco metering and conveying control unit practical training platform. BACKGROUND

[0002] With the improvement of the automation and intelligent level of cigarette production equipment, the control precision and efficiency of cut tobacco conveying equipment are also improved, therefore the design structure of cut tobacco conveying equipment is relatively more complex, which puts forward higher requirements on the skill level of electrical maintenance personnel. In order to master all control systems and structures of existing cut tobacco conveying equipment, electrical maintenance personnel need to rely on practical operation learning on the equipment in addition to theoretical learning, and this process needs to be carried out after shutdown and production, and the structure of cut tobacco conveying equipment is relatively complex, so practical operation learning in a short time cannot achieve the predetermined effect, and due to the tight production task, enterprises cannot arrange a certain equipment for long-term shutdown to carry out teaching and training, therefore how to enable electrical maintenance personnel to carry out simulated practical operation learning without relying on on-site equipment and realize high simulation of cut tobacco metering and conveying control in actual production to further improve the skill level of electrical maintenance personnel has become a problem to be solved urgently. SUMMARY

[0003] The utility model overcomes the insufficient prior art, provides a kind of cut tobacco metering and conveying control unit practical training platform implementation mode, to expect can be carried out simulated practical operation learning by electrical maintenance personnel under the condition of not carrying out on-site shutdown.

[0004] To solve the above technical problems, one embodiment of the utility model adopts the following technical solutions:

[0005] A cut tobacco metering and conveying control unit practical training platform, comprising a PLC controller, a switch, a frequency converter, a three-phase asynchronous motor, a fork photoelectric switch, a pair of photoelectric switches and a baffle, the PLC controller is connected in signal series with the switch, the frequency converter and the three-phase asynchronous motor in turn, the fork photoelectric switch and the pair of photoelectric switches are connected in signal with the PLC controller respectively, the baffle can be adjusted in height, the pair of photoelectric switches detect the height position of the baffle, and the fork photoelectric switch detects the rotating speed of the three-phase asynchronous motor.

[0006] Further, the practical training platform further comprises a blowing electromagnetic valve, which is connected in signal with the PLC controller.

[0007] Further, the practical training platform further comprises a touch screen, which is connected in signal with the switch.

[0008] Further, the practical training platform further comprises a start switch, which is a circuit connection switch.

[0009] Further, the training platform further comprises a base, and the three-phase asynchronous motor, the frequency converter and the starting switch are fixedly installed on the upper portion of the base.

[0010] Further, a shield is further installed on the base, the fork-shaped photoelectric switch is fixedly installed on the shield, a rotation detection disc is fixedly installed on the output shaft of the three-phase asynchronous motor, and the rotation detection disc is located between the fork-shaped photoelectric switches.

[0011] Further, a baffle seat is further fixedly installed on the base, a baffle sliding groove is arranged on the baffle seat, the baffle is slidingly installed in the baffle sliding groove, a plurality of groups of the pair of photoelectric switches are sequentially arranged on the two sides of the baffle sliding groove, and a plurality of groups of the blowing electromagnetic valves are sequentially arranged on the two sides of the baffle sliding groove.

[0012] Further, a slide rail is further arranged in parallel on one side of the baffle sliding groove, a sliding block is slidingly installed in the slide rail, one side of the baffle is fixedly connected with the sliding block, and a baffle handle is further fixedly installed on one side of the sliding block.

[0013] Further, a bump-proof base is further installed on the bottom of the baffle handle on the base.

[0014] Further, a handle is further installed on the base.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects: the utility model simulates the conveying of tobacco by the three-phase asynchronous motor, simulates the amount of tobacco in the stock bin by the baffle, and simulates the application scene of the opening and closing control of the air nozzle by the blowing electromagnetic valve, so that the electrical maintenance personnel can intuitively understand the signal control system, and meanwhile, the production task can be avoided from being affected by the on-site shutdown and practical operation learning. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a signal connection schematic diagram of each electrical element of the utility model;

[0017] Figure 2 It is a whole structure schematic diagram of the utility model;

[0018] Figure 3 It is a rear part schematic diagram of the whole structure of the utility model;

[0019] Mark: 1, three-phase asynchronous motor; 2, handle; 3, rotation detection disc; 4, shield; 5, fork-shaped photoelectric switch; 6, frequency converter; 7, baffle; 8, blowing electromagnetic valve; 9, base; 10, pair of photoelectric switches; 11, baffle handle; 12, starting switch; 13, bump-proof base; 14, detection gap; 15, baffle seat; 16, baffle sliding groove; 17, slide rail; 18, sliding block. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0021] like Figure 1 The diagram shows a training platform for a tobacco metering and conveying control unit. The platform simulates the signal operation system of a cigarette machine conveying materials. It includes a PLC controller, a switch, a frequency converter 6, a three-phase asynchronous motor 1, a fork-shaped photoelectric switch 5, a through-beam photoelectric switch 10, a baffle 7, and a jet solenoid valve 8. The PLC controller is connected in series with the switch, frequency converter 6, and three-phase asynchronous motor 1. The fork-shaped photoelectric switch 5, through-beam photoelectric switch 10, and jet solenoid valve 8 are respectively connected to the PLC controller. The PLC controller receives and outputs control signals and uses a PID speed control algorithm to send signal commands to each electrical component. The baffle 7 can be adjusted vertically to simulate the amount of tobacco stored in the hopper. The through-beam photoelectric switch 10 detects the height of the baffle 7 and transmits the detected height signal to the PLC controller. The three-phase asynchronous motor... Machine 1 simulates the conveyor belt for feeding cigarettes. The PLC controller can transmit signals to the frequency converter 6 via a switch. The frequency converter 6 controls the speed change of the three-phase asynchronous motor 1. The fork-shaped photoelectric switch 5 detects the speed of the three-phase asynchronous motor 1 and transmits the detected speed signal to the PLC controller. In actual production, multiple air nozzles are installed in the hopper to blow the tobacco shreds in the hopper, making the tobacco shreds more evenly distributed. This utility model uses a blow-blowing solenoid valve 8 to simulate the application scenario of controlling the opening and closing of the air nozzles. Since this utility model uses a baffle seat 15 to simulate the hopper, there is no real hopper. Therefore, the blow-blowing solenoid valve 8 is installed on the baffle seat 15. The training platform also includes a touch screen, which is connected to the switch. Data input, modification, device start-up, and pause are performed on the PLC controller through the touch screen to control the status and parameter settings of various components. Figure 3 As shown, the training platform also includes a start switch 12, which is connected to the circuits of each electrical component and controls the opening and closing of the circuits of each electrical component.

[0022] According to the height position change of the baffle 7, the amount of tobacco stored in the cigarette machine hopper is simulated, and the PLC controller adjusts the running speed of the three-phase asynchronous motor 1 in real time according to the height position change of the baffle 7. When the baffle 7 is in the high position, the speed of the three-phase asynchronous motor 1 needs to be reduced to simulate the reduction of the conveying speed of the conveying belt and reduce the amount of tobacco entering. When the baffle 7 is in the low position, the speed of the three-phase asynchronous motor 1 needs to be increased to simulate the increase of the conveying speed of the conveying belt and increase the amount of tobacco entering. The height position of the baffle 7 is detected by the photoelectric switch 10, and then the signal is sent to the PLC controller. The PLC controller compares the signals received by the fork-shaped photoelectric switch 5 and the photoelectric switch 10, and redefines the frequency value of the frequency converter 6 to adjust the speed of the three-phase asynchronous motor 1 in real time, so that the amount of tobacco entering the cigarette machine matches the rolling speed of the cigarette machine. When the baffle 7 is in the lowest position, the PLC controller outputs a three-phase asynchronous motor 1 start signal, and the conveying belt conveys tobacco to the hopper. When the baffle 7 is in the highest position, the PLC controller outputs a three-phase asynchronous motor 1 stop signal, and the conveying belt stops conveying tobacco to the hopper. While the photoelectric switch 10 transmits the position change of the baffle 7 to the PLC controller, the PLC controller controls the corresponding height position of the spray electromagnetic valve 8 to be connected, and the spray electromagnetic valve 8 outside the corresponding position is closed. When the baffle 7 is in the lowest position, the spray electromagnetic valve 8 is closed.

[0023] As shown in Figure 2 The training platform further includes a base 9, the three-phase asynchronous motor 1, the frequency converter 6, and the start switch 12 are fixedly installed on the upper part of the base 9, the output shaft of the three-phase asynchronous motor 1 is fixedly installed with a rotation detection disc 3, the base 9 is further installed with a protective cover 4, the protective cover 4 is frame-shaped, the fork-shaped photoelectric switch 5 is fixedly installed on the protective cover 4, the rotation detection disc 3 is located between the fork-shaped photoelectric switches 5, and the protective cover 4 is used for protecting the rotation detection disc 3 and providing an installation position for the fork-shaped photoelectric switch 5; the rotation detection disc 3 is provided with a detection gap 14, and the detection gap 14 is axially corresponding to the fork-shaped photoelectric switch 5; in use, the three-phase asynchronous motor 1 drives the rotation detection disc 3 to axially rotate between the fork-shaped photoelectric switches 5, the rotation detection disc 3 rotates one circle, the detection gap 14 passes through the fork-shaped photoelectric switch 5 once, and the fork-shaped photoelectric switch 5 is connected once, so as to detect the speed of the three-phase asynchronous motor 1.

[0024] The base 9 is further fixedly provided with a baffle seat 15, the baffle seat 15 is provided with a baffle sliding groove 16, the baffle 7 is slidingly installed in the baffle sliding groove 16, the baffle 7 is simulated to store the amount of tobacco in the silo by sliding up and down in the baffle sliding groove 16; a plurality of pairs of photoelectric switches 10 are sequentially arranged on both sides of the baffle sliding groove 16, the pairs of photoelectric switches 10 corresponding to the height positions of the baffle 7 in the moving process detect the position change of the baffle 7, and transmit the position change signal of the baffle 7 to the PLC controller; a plurality of groups of spray electromagnetic valves 8 are arranged on both sides of the baffle sliding groove 16, each group of pairs of photoelectric switches 10 corresponds to a group of spray electromagnetic valves 8, when the position of the baffle 7 changes to a certain group of pairs of photoelectric switches 10, the spray electromagnetic valve 8 corresponding to the group of pairs of photoelectric switches is communicated, thereby simulating the air nozzle blowing in the actual production silo. The baffle seat 15 is further provided with a sliding rail 17 on one side of the baffle sliding groove 16, the sliding rail 17 is slidingly installed with a sliding block 18, one side of the baffle 7 is fixedly connected with the sliding block 18, the baffle 7 is fixed and guided by the sliding block 18; the sliding block 18 is further fixedly provided with a baffle handle 11 on one side, the baffle handle 11 is pulled up and down to drive the sliding block 18, so that the baffle 7 realizes the position change; the bottom of the baffle handle 11 on the base 9 is further provided with a anti-collision base 13, the distance of the baffle handle 11 sliding downward is limited by the anti-collision base 13, so as to avoid the bottom of the baffle 7 colliding with the base 9, thereby losing the position precision. The base 9 is further provided with a handle 2, which is convenient for carrying the platform.

[0025] Specific use method: before the practical operation training of the electrician, the platform is placed on the desktop, and the platform is powered on through the start switch 12, and the practical operation training is started. When the signal system of the simulated cigarette machine conveying material is working, the platform is started through the touch screen, the three-phase asynchronous motor 1 simulates the starting of the conveying belt, the fork-shaped photoelectric switch 5 detects the rotating speed of the three-phase asynchronous motor 1, and the detected rotating speed signal of the three-phase asynchronous motor 1 is transmitted to the PLC controller; when the storage amount of the simulated tobacco in the silo increases, the baffle 7 is moved upward through the baffle handle 11, the height position of the baffle 7 changes, the corresponding height position of the light emitting diode photoelectric switch 10 transmits the height position signal of the baffle 7 to the PLC controller, the PLC controller compares the signals of the fork-shaped photoelectric switch 5 and the light emitting diode photoelectric switch 10, and uses the PID speed regulation algorithm to reassign the frequency value of the frequency converter 6, the three-phase asynchronous motor 1 reduces the rotating speed according to the frequency conversion signal of the frequency converter 6, so as to simulate the reduction of the conveying speed of the conveying belt and reduce the entering amount of tobacco; at the same time, the PLC controller sends a signal to the corresponding position of the blowing electromagnetic valve 8 corresponding to the height position of the baffle 7, and the blowing electromagnetic valve 8 is connected to simulate the application scene of the air nozzle blowing tobacco; when the storage amount of the simulated tobacco in the silo decreases, the baffle 7 is moved downward, and the rotating speed of the three-phase asynchronous motor 1 increases; the practical operation training can be carried out through the above-mentioned mode, the touch screen can be paused for explanation during the training process, and the power supply can be cut off through the start switch 12 after the training is completed.

[0026] Although the present application has been described with reference to the explanatory embodiments thereof, it is to be understood that many other modifications and implementations can be devised by those skilled in the art that will fall within the principles disclosed herein. More particularly, various modifications and improvements can be made to the components of the subject combination layout and / or the layout itself within the teachings of the present disclosure. Other uses can also be obvious to those skilled in the art, in addition to modifications and improvements to the components and / or layout.

Claims

1. A training platform for a tobacco metering and conveying control unit, characterized in that: The system includes a PLC controller, a switch, a frequency converter (6), a three-phase asynchronous motor (1), a fork-shaped photoelectric switch (5), a through-beam photoelectric switch (10), and a baffle (7). The PLC controller is connected in series with the switch, the frequency converter (6), and the three-phase asynchronous motor (1). The fork-shaped photoelectric switch (5) and the through-beam photoelectric switch (10) are connected to the PLC controller. The baffle (7) can be adjusted up and down. The through-beam photoelectric switch (10) detects the height of the baffle (7). The fork-shaped photoelectric switch (5) detects the speed of the three-phase asynchronous motor (1).

2. The training platform for tobacco metering and conveying control unit according to claim 1, characterized in that: The training platform also includes a jet solenoid valve (8), which is connected to the PLC controller via signal.

3. The training platform for tobacco metering and conveying control unit according to claim 2, characterized in that: The training platform also includes a touch screen, which is connected to the switch via a signal.

4. The training platform for tobacco metering and conveying control unit according to claim 3, characterized in that: The training platform also includes a start switch (12), which is a circuit connection switch.

5. The training platform for tobacco metering and conveying control unit according to claim 4, characterized in that: The training platform also includes a base (9), and the three-phase asynchronous motor (1), frequency converter (6), and start switch (12) are fixedly installed on the upper part of the base (9).

6. The training platform for tobacco metering and conveying control unit according to claim 5, characterized in that: A protective cover (4) is also installed on the base (9). The fork-shaped photoelectric switch (5) is fixedly installed on the protective cover (4). A rotating detection disk (3) is fixedly installed on the output shaft of the three-phase asynchronous motor (1). The rotating detection disk (3) is located between the fork-shaped photoelectric switches (5). A detection notch (14) is opened on the rotating detection disk (3). The detection notch (14) corresponds to the axial direction of the fork-shaped photoelectric switch (5).

7. The training platform for tobacco metering and conveying control unit according to claim 5 or 6, characterized in that: A baffle seat (15) is also fixedly installed on the base (9). The baffle seat (15) is provided with a baffle groove (16). The baffle (7) is slidably installed in the baffle groove (16). Multiple sets of photoelectric switches (10) are arranged on both sides of the baffle groove (16) in sequence. Multiple sets of jet solenoid valves (8) are arranged on both sides of the baffle groove (16) in sequence.

8. The training platform for tobacco metering and conveying control unit according to claim 7, characterized in that: A slide rail (17) is also provided parallel to one side of the baffle slide groove (16), and a slider (18) is slidably installed in the slide rail (17). One side of the baffle (7) is fixedly connected to the slider (18), and a baffle handle (11) is also fixedly installed on one side of the slider (18).

9. The training platform for tobacco metering and conveying control unit according to claim 8, characterized in that: The bottom of the baffle handle (11) on the base (9) is also equipped with an anti-collision base (13).

10. The training platform for tobacco metering and conveying control unit according to claim 7, characterized in that: A handle (2) is also installed on the base (9).

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