A control system for a solenoid valve, a clogging prevention device, and a clogging prevention method

Abstract

The application discloses a control system of an electromagnetic valve, a clogging prevention device and a clogging prevention method. The control system comprises a signal input end, a control module, an intermediate relay and a blowing electromagnetic valve. The signal input end is connected with the input end of the control module, the output end of the control module is connected with the input end of the intermediate relay, and the output end of the intermediate relay is connected with the blowing electromagnetic valve. The first control signal of the signal input end is transmitted to the control module, the control module adjusts the state of the coil of the intermediate relay according to the first control signal, the state of the coil further adjusts the conduction or the shutdown of the blowing electromagnetic valve, at the first moment, the control module controls the coil to lose electricity, the coil losing electricity further controls the blowing electromagnetic valve to be shut down, at the second moment, the control module controls the coil to be electrified, the coil being electrified further controls the blowing electromagnetic valve to be conducted, and the first moment is adjacent to the second moment. Through the technical scheme, the intermittent control of the blowing electromagnetic valve can be realized, and the cost of manpower can be saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical control, in particular to a control system of electromagnetic valve, anti-blocking device and anti-blocking method. BACKGROUND

[0002] The blowing electromagnetic valve is common in production, for example, in some separation devices, by setting the blowing electromagnetic valve at the end of the separation device, different weight substances can be separated by blowing. However, in the prior art, the control of the blowing electromagnetic valve is generally manually operated, which requires a large amount of labor cost; at the same time, the blowing electromagnetic valve is not turned on in time, which causes the material to be blocked. SUMMARY

[0003] The present application provides a control system of electromagnetic valve, anti-blocking device and anti-blocking method, which can realize intermittent control of the blowing electromagnetic valve and save labor cost.

[0004] According to one aspect of the present application, a control system of electromagnetic valve is provided, which comprises: a signal input end, a control module, an intermediate relay and a blowing electromagnetic valve;

[0005] The signal input end is connected with the input end of the control module, the output end of the control module is connected with the input end of the intermediate relay, and the output end of the intermediate relay is connected with the blowing electromagnetic valve;

[0006] The first control signal of the signal input end is transmitted to the control module, and the control module adjusts the state of the coil of the intermediate relay according to the first control signal; the state of the coil further adjusts the blowing electromagnetic valve to be turned on or turned off;

[0007] Wherein, at the first time, the control module controls the coil to lose power, and the coil losing power further controls the blowing electromagnetic valve to be turned off; at the second time, the control module controls the coil to be powered on, and the coil being powered on further controls the blowing electromagnetic valve to be turned on; the first time is adjacent to the second time.

[0008] Optionally, the control module comprises a programmable logic controller.

[0009] Optionally, the control module comprises a delay-on timer and a delay-off timer;

[0010] The preset time of the delay-on timer comprises a first preset time, and the delay-on timer is turned on after the first preset time;

[0011] The preset time of the delay-off timer comprises a second preset time, and the delay-off timer is turned off after the second preset time.

[0012] The time length of the first preset time is equal to the time length from the start time to the end time of the first time, and the time length of the second preset time is equal to the time length from the start time to the end time of the second time.

[0013] Optionally, the control module comprises an output module connected with the intermediate relay.

[0014] The output module comprises a digital output unit.

[0015] Optionally, the first time is T1, and the second time is T2, and the following conditions are met: 200s≤T1≤400s, and 1s≤T2≤5s.

[0016] According to another aspect of the present application, a control system is provided.

[0017] Further comprising: a separator and an air pipe.

[0018] The first end of the separator is connected with the air pipe, and the second end of the separator is provided with the blowing electromagnetic valve.

[0019] According to another aspect of the present application, a control method is provided, which is applied to the control system. The control system comprises a signal input end, a control module, an intermediate relay and a blowing electromagnetic valve. The signal input end is connected with the input end of the control module, the output end of the control module is connected with the input end of the intermediate relay, and the output end of the intermediate relay is connected with the blowing electromagnetic valve. The control method comprises the following steps:

[0020] The first control signal is acquired, the state of the coil of the intermediate relay is adjusted according to the first control signal, and then the blowing electromagnetic valve is adjusted to be turned on or turned off.

[0021] In the first time, the coil is controlled to lose electricity, and the blowing electromagnetic valve is controlled to be turned off. The blowing electromagnetic valve is turned off to not blow the separator.

[0022] In the second time, the coil is controlled to be electrified, and the blowing electromagnetic valve is controlled to be turned on. The blowing electromagnetic valve is turned on to blow the separator. The first time is adjacent to the second time.

[0023] Optionally, after the coil is controlled to be electrified and the blowing electromagnetic valve is controlled to be turned on, the following steps are further included:

[0024] It is judged whether a second control signal is received.

[0025] If the second control signal is accepted, at the first time, the coil is controlled to lose power and the blow electromagnetic valve is controlled to be closed.

[0026] If the second control signal is not accepted, the intermediate relay is controlled to be reset.

[0027] Optionally, the control module comprises a delay-on timer and a delay-off timer; a preset time of the delay-on timer comprises a first preset time, and the delay-on timer is turned on after the first preset time; a preset time of the delay-off timer comprises a second preset time, and the delay-off timer is turned off after the second preset time; a time length of the first preset time is equal to a time length from a start time to an end time of the first time, and a time length of the second preset time is equal to a time length from a start time to an end time of the second time.

[0028] At the first time, the coil is controlled to lose power and the blow electromagnetic valve is controlled to be closed, comprising:

[0029] At the start time of the first time, the delay-on timer is controlled to be started, and the delay-on timer is turned on after the first preset time;

[0030] At the second time, the coil is controlled to be powered and the blow electromagnetic valve is controlled to be turned on, comprising:

[0031] At the start time of the second time, the delay-off timer is controlled to be started, and the delay-off timer is turned off after the second preset time.

[0032] Optionally, if the second control signal is not accepted, the intermediate relay is controlled to be reset, comprising:

[0033] The delay-on timer and the delay-off timer are controlled to be reset.

[0034] The solenoid valve control system of an embodiment of the present invention includes: a signal input end, a control module, an intermediate relay and a blowing solenoid valve, wherein the signal input end is connected to the control module, the intermediate relay and the blowing solenoid valve in sequence; the first control signal provided by the signal input end is transmitted to the control module, and the control module adjusts the coil of the intermediate relay according to the first control signal. Further, the switching state of the blowing solenoid valve is adjusted by adjusting the coil of the intermediate relay; specifically, at the first moment, the control module controls the coil to lose power, and the coil loses power and thus controls the blowing solenoid valve to be turned off; at the second moment, the control module controls the coil to be energized, and the coil is energized and thus controls the blowing solenoid valve to be turned on; the first moment is adjacent to the second moment, which can also be understood as the control module performing alternating control on the intermediate relay at the first moment and the second moment after receiving the first control signal, thereby realizing intermittent control of the blowing solenoid valve, which is beneficial to improving the working efficiency of the blowing solenoid valve and can also save labor costs.

[0035] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 This is a schematic structural diagram of a control system of a first solenoid valve provided by an embodiment of the present invention;

[0038] Figure 2 1 is a schematic structural diagram of a control system of a second solenoid valve provided by an embodiment of the present invention;

[0039] Figure 3 is a ladder diagram of a control module provided by an embodiment of the present invention;

[0040] Figure 4 This is a schematic structural diagram of an anti-blocking device provided by an embodiment of the present invention;

[0041] Figure 5 This is a flow chart of the first anti-blocking method provided by an embodiment of the present invention;

[0042] Figure 6 This is a flow chart of a second anti-blocking method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0043] In order to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0044] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0045] Figure 1 is a structural schematic diagram of a first control system of a solenoid valve provided by the embodiments of the present application, referring to Figure 1 The control system 10 of the solenoid valve comprises a signal input end 100, a control module 200, an intermediate relay 300 and a blow solenoid valve 400. The signal input end 100 is connected with the input end of the control module 200, the output end of the control module 200 is connected with the input end of the intermediate relay 300, and the output end of the intermediate relay 300 is connected with the blow solenoid valve 400. The first control signal of the signal input end 100 is transmitted to the control module 200, the control module 200 adjusts the state of the coil of the intermediate relay 300 according to the first control signal, and the state of the coil further adjusts the conduction or turn-off of the blow solenoid valve 400. Wherein, at the first time, the control module 200 controls the coil to lose power, and the coil losing power further controls the blow solenoid valve 400 to turn off; at the second time, the control module 200 controls the coil to be powered on, and the coil being powered on further controls the blow solenoid valve 400 to conduct. The first time and the second time are adjacent.

[0046] The injection electromagnetic valve 400 is a mechanical device used in industrial production. When the injection electromagnetic valve 400 is turned on, injection can be performed. The electromagnetic coil generates electromagnetic force to lift the closing part from the valve seat, and the valve is opened. When the injection electromagnetic valve 400 is powered off, the electromagnetic force disappears, and the spring presses the closing part on the valve seat, and the valve is closed. The injection electromagnetic valve 400 can be used in a separation device. For example, a stem collecting and dust removing device includes an injection electromagnetic valve. By controlling the connection of the injection electromagnetic valve 400, compressed air in the separator of the tobacco stem and stem can be made to run upward, and the stem in the discharge port can be blown off, so that the stem is scattered and falls smoothly. However, the injection electromagnetic valve in the stem collecting and dust removing device needs to be manually controlled, which consumes a certain amount of labor cost. If the injection electromagnetic valve is not turned on in time by the operator, the discharge port will be blocked, thereby affecting the separation efficiency. Therefore, the injection electromagnetic valve 400 is universal, and the control efficiency of the injection electromagnetic valve 400 can be improved, thereby improving the work efficiency in the field where the injection electromagnetic valve 400 is applied.

[0047] Specifically, referring to FIG. 1, Figure 1 The control system 10 of the electromagnetic valve further includes a signal input end 100 and a control module 200, and the signal input end 100 is connected to the control module 200. For example, the signal input end 100 and the control module 200 can be electrically connected or communicatively connected, and the specific connection mode can be adjusted according to different actual needs, and the embodiments of the present application do not make specific limitations thereon. The signal input end 100 transmits a first control signal to the control module 200, and the control module 200 adjusts the injection electromagnetic valve 400 based on the first control signal. The first control signal can be understood as a power-on signal, and the signal input end 100 can be understood as a human-computer interaction interface or a device opening device. The specific type of the signal input end 100 can be adjusted according to different needs. Optionally, the control module 200 includes a programmable logic controller. The programmable logic controller (Programmable Logic Controller, PLC) is a digital operation electronic system specially designed for application in an industrial environment. It uses a programmable memory to store instructions for performing logic operations, sequence control, timing, counting, and arithmetic operations in its internal memory. Through digital or analog input and output, various types of mechanical equipment or production processes are controlled. In other words, the control process of the injection electromagnetic valve 400 is stored in the control module 200 in advance. The first control signal transmitted by the signal input end 100 is transmitted to the control module 400 as a start instruction, and the control module 400 adjusts the injection electromagnetic valve 400.

[0048] Further, the control system 10 further comprises an intermediate relay 300, the intermediate relay 300 is located between the control module 200 and the injection electromagnetic valve 400, by adding the intermediate relay 300, the control of the control module 200 to the injection electromagnetic valve 400 can be more stable, and the overall working efficiency can be ensured. Wherein, the intermediate relay 300 comprises a coil, when the coil of the intermediate relay 300 is in the energized state, the conduction of the injection electromagnetic valve 400 can be realized; when the coil of the intermediate relay 300 is in the de-energized state, the disconnection of the injection electromagnetic valve 400 can be realized. Therefore, the control module 200 in the control system 10 realizes the indirect control of the injection electromagnetic valve 400 by controlling the energization and de-energization state of the coil of the intermediate relay 300.

[0049] Specifically, after the control module 200 receives the first control signal provided by the signal input end 100, the coil of the intermediate relay 300 is controlled to be energized and de-energized. At the first time, the control module 200 controls the coil to be de-energized, and the de-energization of the coil further controls the injection electromagnetic valve 400 to be turned off; at the second time, the control module 200 controls the coil to be energized, and the energization of the coil further controls the injection electromagnetic valve 400 to be turned on. Wherein, the first time and the second time are adjacent, so it can be understood that the control module 200 controls the injection electromagnetic valve 400 to be in different states at adjacent two times. Further, the first time and the second time are adjacent and arranged alternately, for example, the first time, the second time, the first time, the second time……, so as to realize the intermittent control of the injection electromagnetic valve 400.

[0050] Optionally, the first time is T1, and the second time is T2, and the following conditions are met: 200s≤T1≤400s, and 1s≤T2≤5s.

[0051] Wherein, the first time is T1, and T1 meets: 200s≤T1≤400s, for example, T1 can be 200s, 300s, 350s or 400s, and the specific length of time of T1 can be adaptively adjusted according to actual needs. The second time is T2, and T2 meets: 1s≤T1≤5s, for example, T2 can be 1s, 3s, 4s or 5s, and the specific length of time of T2 can be adaptively adjusted according to actual needs.

[0052] In summary, the embodiment of the present application provides a control device of an electromagnetic valve, at a first time, the control module controls the coil to lose power, and the coil losing power further controls the blow-off electromagnetic valve to be turned off; at a second time, the control module controls the coil to be powered on, and the coil being powered on further controls the blow-off electromagnetic valve to be turned on; the first time and the second time are adjacent, and it can also be understood that the control module, after receiving the first control signal, controls the intermediate relay to be alternately controlled at the first time and the second time, thereby realizing intermittent control of the blow-off electromagnetic valve, which is beneficial to improve the working efficiency of the blow-off electromagnetic valve and can also save labor cost.

[0053] Figure 2 is a structural schematic diagram of a second control system of an electromagnetic valve provided by the embodiment of the present application, as shown in the figure, Figure 2 the control module 200 includes a delay-on timer 210 and a delay-off timer 220; the preset time of the delay-on timer 210 includes a first preset time, and the delay-on timer 210 is turned on after the first preset time; the preset time of the delay-off timer 220 includes a second preset time, and the delay-off timer 220 is turned off after the second preset time; the time length of the first preset time is equal to the time length from the start time to the end time of the first time, and the time length of the second preset time is equal to the time length from the start time to the end time of the second time.

[0054] Specifically, the control module 200 includes the delay-on timer 210 and the delay-off timer 220, which can be understood as that the control module 200 increases the delay-on timer 210 and the delay-off timer 220 when setting the program. The preset time of the delay-on timer 210 includes a first preset time, and the delay-on timer 210 is turned on after the first preset time, and the area where the delay-on timer 210 is located after being turned on corresponds to a passageway. The preset time of the delay-off timer 220 includes a second preset time, and the delay-off timer 220 is turned off after the second preset time, and the area where the delay-off timer 220 is located after being turned off corresponds to a short circuit. By setting the delay-on timer 210 and the delay-off timer 220, the control module 200 can realize intermittent control of the intermediate relay 300, thereby realizing intermittent control of the blow-off electromagnetic valve 400.

[0055] The time length of the first preset time is equal to the time length from the start time to the end time of the first time, for example, when the time length of the first time is 300s, the time length of the first preset time is also 300s; the time length of the second preset time is equal to the time length from the start time to the end time of the second time, for example, when the time length of the second time is 3s, the time length of the second preset time is also 3s. The specific time length can be adjusted adaptively according to different requirements.

[0056] Figure 3 is a ladder diagram of a control module provided by an embodiment of the present application, continuing to refer to Figure 2 and Figure 3 As shown in the figure, the control module 200 comprises an output module 230 connected with the intermediate relay 300; the output module 230 comprises a digital quantity output unit.

[0057] Further, referring to Figure 2 As shown in the figure, the control module 200 further comprises an output module 230 connected with the intermediate relay 300, when the signal transmitted in the control module 200 is transmitted to the output module 230 through the delay-on timer 210 and the delay-off timer 220, the coil of the intermediate relay 300 is powered, thereby controlling the conduction of the blow electromagnetic valve 400. The output module 230 comprises a digital quantity output unit, which discontinuously adjusts the power-on and power-off states of the coil of the intermediate relay 300. Moreover, the digital quantity output unit can improve the control precision of the intermediate relay 300, thereby ensuring the working stability and accuracy of the control system 10.

[0058] Further, referring to Figure 3 As shown in the figure, when the control module 200 receives the signal input from the signal input end 100, the program running thereof can combine Figure 3 The first normally open switch 240 is closed, the signal is transmitted to the delay-on timer 210 through the first normally closed switch 250, after a first preset time or a first time, the delay-on timer 210 is closed, and the second normally open switch 260 is closed, the signal for controlling the conduction of the intermediate relay 300 can make the coil of the intermediate relay 300 powered through the output module 230, thereby making the blow electromagnetic valve 400 conductive to realize blowing. After a second time, when the delay-off timer 220 satisfies a second preset time, the delay-off timer 220 is disconnected, thereby the signal for controlling the conduction of the intermediate relay 300 cannot be transmitted to the intermediate relay 300 through the output module 230, so that the coil of the intermediate relay 300 is powered off, the blow electromagnetic valve 400 is disconnected, and blowing is stopped. The process of controlling the conduction of the blow electromagnetic valve 400 and the process of controlling the disconnection of the blow electromagnetic valve 400 can be cyclically executed to realize intermittent blowing. It should be noted that, in the delay-on timer 210, IN refers to the input of the signal, Q refers to the output of the signal, PT refers to the first preset time, and ET refers to the current time; in the delay-off timer 220, IN refers to the input of the signal, Q refers to the output of the signal, PT refers to the second preset time, and ET refers to the current time.

[0059] Based on the same inventive concept, the present application also provides a device for preventing blockage, Figure 4is a structural schematic view of a blockage prevention device provided by an embodiment of the present application, referring to Figure 4 As shown in the figure, the blockage prevention device 20 comprises the control system 10 described in any of the above embodiments, so the blockage prevention device 20 provided by the embodiment of the present application has the corresponding beneficial effects in the above embodiments, which will not be described here. Further, the blockage prevention device 20 further comprises a separator 21 and an air pipe 22; the first end of the separator 21 is connected with the air pipe 22; the second end of the separator 21 is provided with a blowing electromagnetic valve 400. Illustratively, the blockage prevention device can be applied in the cigarette production process. Specifically, the heavy impurities such as large stems and bundled tobacco in the tobacco sent by the air feeder will be separated by the stem blockage prevention device of each cigarette machine, and under the action of the centrifugal force, the stems and the like will fall to the bottom, and then be discharged through the bottom ash valve, and finally be collected. By controlling the intermittent operation of the blowing electromagnetic valve, the accumulation of materials at the ash valve can be avoided, and the separation efficiency of the separation device can be improved.

[0060] Based on the same inventive concept, the embodiment of the present application provides a blockage prevention method, Figure 5 is a flow chart of a first blockage prevention method provided by an embodiment of the present application, referring to Figure 5 As shown in the figure, the blockage prevention comprises:

[0061] S110, acquiring a first control signal.

[0062] The blowing electromagnetic valve is a mechanical device used in industrial production. When the blowing electromagnetic valve is turned on, it can be blown, and the electromagnetic coil generates electromagnetic force to lift the closing piece from the valve seat, and the valve is opened. When the blowing electromagnetic valve is powered off, the electromagnetic force disappears, and the spring presses the closing piece on the valve seat, and the valve is closed. The blowing electromagnetic valve can be used in a separation device. Illustratively, the stem collection and dust removal device comprises a blowing electromagnetic valve. By controlling the connection of the blowing electromagnetic valve, the compressed air in the separator of the tobacco and stem can be made to run upward, and the stems at the discharge port can be blown off, so as to scatter the stems and make them fall smoothly. However, the blowing electromagnetic valve in the stem collection and dust removal device needs to be manually controlled, which consumes a certain amount of labor cost; and if the operator does not timely connect the blowing electromagnetic valve, the discharge port will be blocked, thereby affecting the separation efficiency. Therefore, the blowing electromagnetic valve is universal, and improving the control efficiency of the blowing electromagnetic valve can improve the work efficiency in the field where the blowing electromagnetic valve is applied.

[0063] Specifically, the electromagnetic valve adjusting control system comprises a signal input end and a control module, and the signal input end is connected with the control module. For example, the signal input end and the control module can be electrically connected or communicatively connected, and the specific connection mode can be adjusted according to different actual requirements, and the embodiments of the present application do not make specific limitations in this regard. The signal input end transmits a first control signal to the control module, and the control module adjusts the blow-off electromagnetic valve based on the first control signal. The first control signal can be understood as a power-on signal, and the signal input end can be understood as a human-computer interaction interface or a device starting device. The specific type of the signal input end can be adjusted according to different requirements. Optionally, the control module comprises a programmable logic controller. The programmable logic controller (PLC) is a digital operation electronic system specially designed for application in an industrial environment. It uses a programmable memory to store instructions for performing logic operations, sequence control, timing, counting and arithmetic operations in its internal memory, and controls various types of mechanical equipment or production processes through digital or analog input and output. In other words, the control process of the blow-off electromagnetic valve is pre-stored in the control module, the first control signal transmitted by the signal input end is transmitted to the control module as a starting instruction, and the control module adjusts the blow-off electromagnetic valve. Further, the control system further comprises an intermediate relay, which is located between the control module and the blow-off electromagnetic valve. By adding the intermediate relay, the control of the blow-off electromagnetic valve by the control module can be more stable, and the overall working efficiency can be ensured. The intermediate relay comprises a coil. When the coil of the intermediate relay is in a power-on state, the blow-off electromagnetic valve can be turned on; and when the coil of the intermediate relay is in a power-off state, the blow-off electromagnetic valve can be turned off. Therefore, the control module of the control system indirectly controls the blow-off electromagnetic valve by controlling the power-on and power-off states of the coil of the intermediate relay.

[0064] Specifically, after receiving the first control signal provided by the signal input end, the control module controls the coil of the intermediate relay to be powered on and powered off.

[0065] S120, at the first time, the coil is powered off and the blow-off electromagnetic valve is turned off.

[0066] S130, at the first time, the coil is powered off and the blow-off electromagnetic valve is turned off.

[0067] Specifically, at a first time, the control module controls the coil to lose power, the coil losing power in turn controls the spray electromagnetic valve to be turned off, the spray electromagnetic valve being turned off does not spray the separator; at a second time, the control module controls the coil to be powered on, the coil being powered on in turn controls the spray electromagnetic valve to be turned on, the spray electromagnetic valve being turned on sprays the separator. Wherein, the first time and the second time are adjacent, so it can be understood that the control module controls the spray electromagnetic valve to be in different states at adjacent two times. Further, the first time and the second time are adjacent and arranged alternately, for example, the first time, the second time, the first time, the second time……, so as to realize intermittent control of the spray electromagnetic valve. Optionally, wherein, the first time is T1, T1 can satisfy: 200s≤T1≤400s, for example, T1 can be 200s, 300s, 350s or 400s, and the specific length of time of T1 can be adaptively adjusted according to actual requirements. The second time is T2, T2 satisfies: 1s≤T1≤5s, for example, T2 can be 1s, 3s, 4s or 5s, and the specific length of time of T2 can be adaptively adjusted according to actual requirements.

[0068] In summary, the embodiment of the present application provides a kind of anti-blocking method, at first time, the control module controls the coil to lose power, the coil losing power in turn controls the spray electromagnetic valve to be turned off;At the second time, the control module controls the coil to be powered on, the coil being powered on in turn controls the spray electromagnetic valve to be turned on;The first time and the second time are adjacent, and this can also be understood that the control module receives first control signal, and the intermediate relay is controlled alternately at the first time and the second time, in turn realizes the intermittent control of the spray electromagnetic valve, is beneficial to the working efficiency of spray electromagnetic valve, and manpower cost can also be saved.

[0069] Optionally, Figure 5 It is the second anti-blocking method flow chart provided by the embodiment of the present application, as shown in Figure 5 It is shown that anti-blocking also includes:

[0070] S210, first control signal is acquired.

[0071] S220, at the start time of the first time, control delay-on timer to start, and delay-on timer is turned on after first preset time.

[0072] S230, at the start time of the second time, control off-on timer to start, and off-on timer is turned off after second preset time.

[0073] The control module includes a delay-on timer and a delay-off timer. The delay-on timer has a preset time, which includes a first preset time. The delay-on timer is turned on after the first preset time. The area where the delay-on timer is located is equivalent to a passageway after the delay-on timer is turned on. The delay-off timer has a preset time, which includes a second preset time. The delay-off timer is turned off after the second preset time. The area where the delay-off timer is located is equivalent to a short circuit after the delay-off timer is turned off. The intermittent control of the intermediate relay by the control module can be realized by setting the delay-on timer and the delay-off timer, and the intermittent control of the blow electromagnetic valve can be realized. The time length of the first preset time is equal to the time length from the start time to the end time of the first time. For example, when the time length of the first time is 300 seconds, the time length of the first preset time is also 300 seconds. The time length of the second preset time is equal to the time length from the start time to the end time of the second time. For example, when the time length of the second time is 3 seconds, the time length of the second preset time is also 3 seconds. The specific time length can be adjusted according to different requirements.

[0074] Further, the control module further includes an output module connected with the intermediate relay. When the signal transmitted in the control module is transmitted to the output module through the delay-on timer and the delay-off timer, the coil of the intermediate relay is powered, and the conduction of the blow electromagnetic valve is controlled. The output module includes a digital quantity output unit. The on and off states of the coil of the intermediate relay are adjusted intermittently by the digital quantity output unit. The control accuracy of the intermediate relay can be improved by the digital quantity output unit, and the working stability and accuracy of the control system can be ensured.

[0075] When the control module receives the signal input by the signal input end, the program running thereof can be combined with Figure 3, the first normally open switch 240 is closed, and the signal for controlling the conduction of the intermediate relay 300 can be transmitted to the intermediate relay 300 through the output module 230 so that the coil of the intermediate relay 300 is energized, and then the blow-off electromagnetic valve 400 is turned on to realize the blow-off. After the second time, the delay-off timer 220 meets the second preset time, the delay-off timer 220 is turned off, and then the signal for controlling the conduction of the intermediate relay 300 cannot be transmitted to the intermediate relay 300 through the output module 230, so that the coil of the intermediate relay 300 is de-energized, the blow-off electromagnetic valve 400 is turned off, and the blow-off is stopped. The process of controlling the blow-off electromagnetic valve 400 to be turned on and controlling the blow-off electromagnetic valve 400 to be turned off can be executed in a cycle to realize the intermittent operation of the blow-off. It should be noted that, in the delay-on timer 210, IN refers to the input of the signal, Q refers to the output of the signal, PT refers to the first preset time, and ET refers to the current time; in the delay-off timer 220, IN refers to the input of the signal, Q refers to the output of the signal, PT refers to the second preset time, and ET refers to the current time.

[0076] S240, determining whether a second control signal is received; if yes, performing S250, and if no, performing S220;

[0077] The signal input end can transmit the second control signal to the control module, and the control module adjusts the blow-off electromagnetic valve based on the second control signal. The second control signal can be understood as a power-down signal. In other words, the control process of the blow-off electromagnetic valve is pre-stored in the control module, the first control signal transmitted by the signal input end is transmitted to the control module as a start instruction, and the control module ends the adjustment of the blow-off electromagnetic valve; the second control signal transmitted by the signal input end is transmitted to the control module as a termination instruction, and the control module ends the adjustment of the blow-off electromagnetic valve. Specifically, if the control module receives the second control signal, it proves that the blow-off electromagnetic valve does not need to be adjusted at present, or it can be understood as the current setting needs to be powered down, and then S250 is executed; if the control module does not receive the second control signal, it proves that the blow-off electromagnetic valve still needs to be adjusted at present, and then S220 is executed to realize the intermittent control of the blow-off electromagnetic valve.

[0078] S250, controlling the intermediate relay to reset.

[0079] Specifically, when the control module receives the second control signal, the control intermediate relay is restored to the initial state, which can be understood as the state before the control module receives the first control signal to adjust the intermediate relay. Optionally, the control intermediate relay reset includes controlling the delay-on timer and the delay-off timer to reset. Wherein, when the second control signal is received, the delay-on timer and the delay-off timer in the control module are reset to the initial state, which can ensure the reliability of subsequent operation of the spray electromagnetic valve adjustment. Optionally, the control module can also receive a third control signal. When the control module receives the third control signal, the control intermediate relay is restored to the initial state, which can be understood as the state before the control module receives the first control signal to adjust the intermediate relay; at the same time, the control intermediate relay, the control delay-on timer and the delay-off timer are also reset. The second control signal can be understood as a related instruction for the device to power off, and the third control signal can be understood as a related instruction when the device is abnormal, such as an alarm instruction when the intermediate relay, the control delay-on timer or the delay-off timer is abnormal, etc., so as to better prevent blockage and save manpower.

[0080] It should be noted that the above are only preferred embodiments of the present application and the principles of the technology applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A solenoid valve control system, characterized in that: The control system includes: a signal input terminal, a control module, an intermediate relay and a spray solenoid valve; The signal input end is connected to the input end of the control module, the output end of the control module is connected to the input end of the intermediate relay, and the output end of the intermediate relay is connected to the injection solenoid valve; The first control signal of the signal input terminal is transmitted to the control module, and the control module adjusts the state of the coil of the intermediate relay according to the first control signal; the state of the coil further adjusts the conduction or shutoff of the injection solenoid valve; Wherein, at a first moment, the control module controls the coil to lose power, and the coil loses power and controls the injection solenoid valve to be turned off; at a second moment, the control module controls the coil to be energized, and the coil is energized and controls the injection solenoid valve to be turned on; the first moment and the second moment are adjacent; The control module includes a delay-on timer and a delay-off timer; The preset time of the delay-on timer includes a first preset time, and the delay-on timer is turned on after the first preset time; The preset time of the delayed disconnection timer includes a second preset time, and the delayed disconnection timer is disconnected after the second preset time; The length of the first preset time is equal to the length of time from the start moment to the end moment of the first moment, and the length of the second preset time is equal to the length of time from the start moment to the end moment of the second moment.

2. The control system according to claim 1, characterized in that: The control module includes a programmable logic controller.

3. The control system according to claim 2, characterized in that: The control module includes an output module, and the output module is connected to the intermediate relay; The output module includes a digital output unit.

4. The control system according to claim 1, characterized in that: The first time is T1, and the second time is T2, which satisfies: 200s≤T1≤400s, 1s≤T2≤5s. 5.An anti-blocking device, characterized in that: A control system comprising any one of claims 1 to 4; Also included: separator and air duct; The first end of the separator is connected to the air duct; the second end of the separator is provided with the spray solenoid valve.

6. An anti-blocking method, characterized in that: The anti-blocking device according to claim 5; the anti-blocking device includes a control system, the control system includes: a signal input end, a control module, an intermediate relay and a spray solenoid valve; the signal input end is connected to the input end of the control module, the output end of the control module is connected to the input end of the intermediate relay, and the output end of the intermediate relay is connected to the spray solenoid valve; the anti-blocking method includes: Acquire the first control signal; adjust the state of the coil of the intermediate relay according to the first control signal, and thereby adjust the injection solenoid valve to be turned on or off; At the first moment, the coil is controlled to lose power and the spray solenoid valve is controlled to be turned off; the spray solenoid valve is turned off and does not spray the separator; At the second moment, the coil is controlled to be energized and the blowing solenoid valve is controlled to be turned on; the blowing solenoid valve is turned on to blow the separator; wherein the first moment is adjacent to the second moment.

7. The anti-clogging method according to claim 6, characterized in that: After controlling the coil to be energized and controlling the spray solenoid valve to be turned on, the method further includes: determining whether to accept the second control signal; If the second control signal is received, then at the first moment, the coil is controlled to lose power and the injection solenoid valve is controlled to be turned off; If the second control signal is not received, the intermediate relay is controlled to reset.

8. The anti-clogging method according to claim 7, characterized in that: The control module includes a delayed on timer and a delayed off timer; the preset time of the delayed on timer includes a first preset time, and the delayed on timer is turned on after the first preset time; the preset time of the delayed off timer includes a second preset time, and the delayed off timer is turned off after the second preset time; the time length of the first preset time is equal to the time length from the start time to the end time of the first moment, and the time length of the second preset time is equal to the time length from the start time to the end time of the second moment; At the first moment, controlling the coil to lose power and controlling the injection solenoid valve to turn off includes: Controlling the delayed on timer to start at a starting moment of the first moment, and the delayed on timer to be turned on after the first preset time; At the second moment, controlling the coil to be energized and controlling the injection solenoid valve to be turned on includes: The delayed disconnection timer is controlled to start at the start moment of the second moment, and the delayed disconnection timer is disconnected after the second preset time.

9. The anti-clogging method according to claim 8, characterized in that: If the second control signal is not received, controlling the intermediate relay to reset includes: Control the reset of the delay-on timer and the delay-off timer.

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