Constant flow poppet valve pump and logic control method thereof

Abstract

The application provides a constant-flow poppet valve pump and a logic control method thereof, and belongs to the technical field of valve pumps, wherein the constant-flow poppet valve pump comprises a base, the upper end of the base is fixed with a left valve pump assembly, a right valve pump assembly and a water tank respectively, and the left valve pump assembly and the right valve pump assembly are embedded in and penetrate through the middle part of the water tank. The left and right hydraulic cylinders are alternately operated, and the pistons controlled by the two hydraulic cylinders have a certain time of same-direction action in the extension stage, so that the material is always in the state of being beaten, and the material is always transported forward in the pipeline, which belongs to constant-flow transportation. In this way, the transportation pressure cannot be frequently converted, and the service life of the hydraulic components of the hydraulic station and the entire equipment can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve pump, in particular to a constant flow poppet valve pump and a logic control method thereof. BACKGROUND

[0002] The commonly used conveying devices on the market, such as S swing valve pump, cone valve pump and skirt valve pump, are intermittent feeding, and the conveying capacity drops to nearly zero instantaneously when the piston changes direction, which is not conducive to the feeding at the end of the system, and may cause sintering, empty burning and other adverse effects, and the conveying capacity frequently drops from high position to zero position, which may cause pressure pulsation, pipeline vibration, large material return flow and other adverse effects.

[0003] Therefore, the present application provides a constant flow poppet valve pump and a logic control method thereof. SUMMARY

[0004] The present application provides a constant flow poppet valve pump and a logic control method thereof to solve the above technical problems.

[0005] The present application provides a constant flow poppet valve pump, which comprises a base, and the upper end of the base is fixed with a left valve pump assembly, a right valve pump assembly and a water tank.

[0006] The left valve pump assembly and the right valve pump assembly are respectively embedded and penetrate the middle part of the water tank.

[0007] Preferably, the left valve pump assembly comprises a left hydraulic cylinder, a left material cylinder, a cone valve cylinder 1, a cone valve cylinder 2, a material suction cavity 1 and a material pressing cavity 1.

[0008] The left hydraulic cylinder is embedded and penetrates the middle part of the water tank, and the left material cylinder, the material suction cavity 1, the material pressing cavity 1 and the cone valve cylinder 2 are sequentially arranged from right to left after the left hydraulic cylinder.

[0009] The cone valve cylinder 1 is located at the lower part of the material suction cavity 1.

[0010] The right valve pump assembly comprises a right hydraulic cylinder, a right material cylinder, a cone valve cylinder 3, a cone valve cylinder 4, a material suction cavity 2 and a material pressing cavity 2.

[0011] The right hydraulic cylinder is embedded and penetrates the middle part of the water tank, and the right material cylinder, the material suction cavity 2, the material pressing cavity 2 and the cone valve cylinder 4 are sequentially arranged from right to left after the right hydraulic cylinder.

[0012] The cone valve cylinder 3 is located at the lower part of the material suction cavity 2.

[0013] The top of the material suction cavity 1 and the material suction cavity 2 is provided with a feeding port, and the bottom of the material pressing cavity 1 and the material pressing cavity 2 is provided with a discharging port.

[0014] The present application provides a logic control method of a constant flow poppet valve pump, which comprises the following steps:

[0015] Step 1: The positions of the pistons inside the left hydraulic cylinder and the right hydraulic cylinder are detected by the magnetic displacement sensor, and the magnetic displacement sensor detection data is transmitted to the PLC module to identify the specific positions of the first piston of the left hydraulic cylinder and the second piston of the right hydraulic cylinder. At this time, the control logic of the constant flow poppet valve pump starts to work.

[0016] Step 2: The second piston controlled by the right hydraulic cylinder runs forward, at this time, the cone valve cylinder 3 is in the closed state, and the cone valve cylinder 4 is in the open state. When the second piston reaches the preset position 1 from the end of the stroke, the first piston controlled by the left hydraulic cylinder runs forward from the zero position. At the same time, the three-position four-way electromagnetic valve controls the cone valve cylinder 1 to close, the cone valve cylinder 2 to close, and the material in the left cylinder to run forward. The corresponding piston of the left hydraulic cylinder pushes the material to extrude the gap but does not hit the material, and the corresponding piston of the right hydraulic cylinder hits the material.

[0017] Step 3: The first piston of the left hydraulic cylinder continues to move forward, the cone valve cylinder 1 is in the closed state, and the cone valve cylinder 2 is in the closed state. The material in the left cylinder runs forward, and since the material is in a non-full state, the material in the left cylinder extrudes the gap and establishes a certain pressure. The second piston of the right hydraulic cylinder continues to move to the end of the stroke, and the corresponding cone valve cylinder 3 is in the closed state, and the cone valve cylinder 4 is in the open state. The corresponding piston of the left hydraulic cylinder is in the pressure establishing state, and the corresponding piston of the right hydraulic cylinder continues to hit the material.

[0018] Step 4: When the second piston of the right hydraulic cylinder moves to the preset position 2 from the end of the stroke, the magnetic displacement sensor signal is triggered. After the electromagnetic proportional valve and the three-position four-way electromagnetic valve are powered on, the cone valve cylinder 3 is opened, the cone valve cylinder 4 is closed, and at the same time, the electromagnetic proportional valve and the three-position four-way electromagnetic valve are powered on to control the cone valve cylinder 2 to open, and the cone valve cylinder 1 remains in the closed state. The first piston of the left hydraulic cylinder continues to run forward, and the corresponding piston of the left hydraulic cylinder starts to hit the material, while the corresponding piston of the right hydraulic cylinder quickly runs backward to start to suck the material.

[0019] Step 5: The first piston of the left hydraulic cylinder continues to run forward, and the corresponding piston of the left hydraulic cylinder continues to hit the material. When the second piston of the right hydraulic cylinder quickly runs backward to the starting point of the stroke, the magnetic displacement sensor signal is triggered. After the electromagnetic proportional valve and the three-position four-way electromagnetic valve are powered on, the second piston of the right hydraulic cylinder runs forward, the cone valve cylinder 3 is closed, and the cone valve cylinder 4 is closed. The corresponding piston of the left hydraulic cylinder continues to hit the material, and the corresponding piston of the right hydraulic cylinder starts to push the material forward in the right cylinder. The material is in a gradually compacted and pressure establishing state.

[0020] Preferably, the left hydraulic cylinder and the right hydraulic cylinder are respectively provided with one magnetic displacement sensor.

[0021] Preferably, the preset distance is 50-60 cm.

[0022] Preferably, further comprising:

[0023] The first pressure sensor arranged on the first conveying belt at the feeding port is used to detect the first pressure of the material transported to the feeding port in real time;

[0024] The second pressure sensor arranged on the second conveying belt at the discharging port is used to detect the second pressure of the material output from the discharging port in real time;

[0025] The second pressure sensor is connected to the processor arranged on the base, and the processor is further connected to the alarm and the display screen arranged on the base.

[0026] Preferably, further comprising:

[0027] The pressure matrix is constructed based on the first pressure detected in real time and the second pressure detected in real time , wherein, , The first vector constructed based on the first pressure and the second vector constructed based on the second pressure in the continuous time period before the current time point are respectively;

[0028] Locking the first occurrence position of the element not being 0 in the matrix YN, and counting the initial non-occurrence continuous time length Tc based on the first occurrence position, and obtaining the first time deviation Tp based on the processor ;

[0029]

[0030] , wherein, represents the pre-defined discharging time period based on the second pressure; t0 represents the continuous time length around the corresponding surrounding time point based on the pre-defined time T0;

[0031] According to the first time deviation Tp, the first alarm instruction is issued to the alarm;

[0032] Based on the pressure matrix YN, the first pressure sum based on the first vector and the second pressure sum based on the second vector before each time point are calculated in time sequence, and whether the material adding time point needs to be set is determined according to the pressure difference between the first pressure sum and the second pressure sum;

[0033] If the pressure difference is less than the set difference, at this time, the material adding instruction is issued to the alarm, and the earliest adding time point is determined in combination with Tx , and the latest adding time point is determined in combination with , wherein, Tx represents the time point at which the pressure difference is less than the set difference; represents the unit reference time for pressure; represents the number of time points before Tx based on the pressure matrix YN; 、 respectively represent the first pressure, the second pressure at the i1th time point; represents the set difference; respectively represent the maximum value in the first pressure, the maximum value in the second pressure involved before Tx;

[0034] The earliest addition time point and the latest addition time point are output to the corresponding display screen for display and reminding.

[0035] Preferably, the application further comprises:

[0036] The shooting device is arranged below the discharge port and continuously shoots material images of the output material discharged onto the second conveying belt;

[0037] The shooting device is connected with the processor;

[0038] The target impurity in the material image is framed according to a preset accuracy, and a framed image is obtained;

[0039] Each framed image continuously shot is analyzed to determine the material impurity ratio under each framed image;

[0040] If the material impurity ratios are all less than a preset impurity ratio, it is determined that the material is qualified;

[0041] Otherwise, the impurity level ZD is determined;

[0042]

[0043]

[0044] P represents the number of framed images; represents the determination function of the o1th framed image; represents the material impurity ratio of the o1th framed image; represents the preset impurity ratio;

[0045] When the impurity level ZD is greater than a preset level, the piston is controlled to work at the maximum power;

[0046] Otherwise, the piston is controlled to continue working at the current power.

[0047] Compared with the prior art, the application has the following beneficial effects:

[0048] 1、The application is provided with two hydraulic cylinders and is independently controlled, and the pistons in the two cylinders have a certain overlap section when operating, when the piston on one side approaches the end of the cylinder and returns, the piston on the other side has moved a small distance in the cylinder, so that the material in the pipeline is always transported forward, which belongs to constant flow transportation. In this way, the delivery pressure will not be frequently converted, which can improve the service life of the hydraulic components of the hydraulic station and the entire equipment.

[0049] 2、By setting the first pressure sensor, the second pressure sensor, the processor, the alarm and the display screen, the inlet and outlet amounts of the material are monitored in real time, so that the material needed for the material can be provided in time, and the constant flow work efficiency is affected by the lack of material.

[0050] 3、By setting the shooting device, the size and uniformity of the output material can be reasonably analyzed, the rationality of the material is ensured, and the reliability of the subsequent engineering application of the material is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0052] Figure 1 It is a structure diagram of a constant flow lift valve pump provided by the embodiment of the application;

[0053] Figure 2 It is a work diagram of step 2 in the embodiment of the application;

[0054] Figure 3 It is a work diagram of step 3 in the embodiment of the application;

[0055] Figure 4 It is a work diagram of step 4 in the embodiment of the application;

[0056] Figure 5 It is a work diagram of step 5 in the embodiment of the application;

[0057] Figure 6 It is an electrical related diagram in the embodiment of the application. DETAILED DESCRIPTION

[0058] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0059] The present application provides a constant flow poppet pump, as shown in the drawings, comprising: Figure 1 The upper end of the base 1 is fixed with a left valve pump assembly 2, a right valve pump assembly 3 and a water tank 4, respectively.

[0060] The left valve pump assembly 2 and the right valve pump assembly 3 are embedded and penetrate the middle part of the water tank 4.

[0061] Preferably, the left valve pump assembly 2 comprises a left hydraulic cylinder 21, a left cylinder 22, a conical valve cylinder 123, a conical valve cylinder 224, a suction chamber 125 and a pressure chamber 126.

[0062] The left hydraulic cylinder 21 is embedded and penetrates the middle part of the water tank 4, and then the left cylinder 22, the suction chamber 125, the pressure chamber 126 and the conical valve cylinder 224 are sequentially arranged from right to left.

[0063] The conical valve cylinder 123 is located at the lower part of the suction chamber 125.

[0064] The right valve pump assembly 3 comprises a right hydraulic cylinder 31, a right cylinder 32, a conical valve cylinder 333, a conical valve cylinder 434, a suction chamber 235 and a pressure chamber 236.

[0065] The right hydraulic cylinder 31 is embedded and penetrates the middle part of the water tank 4, and then the right cylinder 32, the suction chamber 235, the pressure chamber 236 and the conical valve cylinder 434 are sequentially arranged from right to left.

[0066] The conical valve cylinder 333 is located at the lower part of the suction chamber 235.

[0067] The top of the suction chamber 125 and the top of the suction chamber 235 are provided with an inlet 5, and the bottom of the pressure chamber 126 and the bottom of the pressure chamber 236 are provided with an outlet 6.

[0068] The present application provides a logic control method of a constant flow poppet pump, which is applied to the constant flow poppet pump and comprises the following steps.

[0069] Step 1: The positions of the corresponding pistons in the left hydraulic cylinder and the right hydraulic cylinder are detected by a magnetic displacement sensor, and the detection data of the magnetic displacement sensor is transmitted to a PLC module to identify the specific positions of the first piston of the left hydraulic cylinder and the second piston of the right hydraulic cylinder. At this time, the control logic of the constant flow poppet pump starts to work.

[0070] Step 2: The second piston controlled by the right hydraulic cylinder runs forward, at this time, the taper valve cylinder 3 is in the closed state, and the taper valve cylinder 4 is in the open state, when the second piston reaches the preset position 1 away from the end of the stroke, the first piston controlled by the left hydraulic cylinder runs forward from the zero position, at the same time, the taper valve cylinder 1 is controlled to be closed by the three-position four-way electromagnetic valve after being electrified, the taper valve cylinder 2 is closed, and the material runs forward in the left material cylinder, the corresponding piston of the left hydraulic cylinder pushes the material to extrude the gap but does not hit the material, and the corresponding piston of the right hydraulic cylinder hits the material, as shown in Figure 2 ;

[0071] Step 3: The first piston of the left hydraulic cylinder continues to move forward, the taper valve cylinder 1 is in the closed state, the taper valve cylinder 2 is in the closed state, and the material runs forward in the left material cylinder, since the material is in a non-full state, the material extrudes the gap in the left material cylinder and establishes a certain pressure. The second piston of the right hydraulic cylinder continues to move to the end of the stroke, the corresponding taper valve cylinder 3 is in the closed state, the taper valve cylinder 4 is in the open state, the corresponding piston of the left hydraulic cylinder is in the pressure establishing state, and the corresponding piston of the right hydraulic continues to hit the material, as shown in Figure 3 ;

[0072] Step 4: When the second piston of the right hydraulic cylinder moves to the preset position 2 away from the end of the working stroke to trigger the magnetic displacement sensor signal, the taper valve cylinder 3 is opened and the taper valve cylinder 4 is closed after the electromagnetic proportional valve and the three-position four-way electromagnetic valve are electrified, at the same time, the taper valve cylinder 2 is opened and the taper valve cylinder 1 is still in the closed state after the electromagnetic proportional valve and the three-position four-way electromagnetic valve are electrified, the first piston of the left hydraulic cylinder continues to run forward, the corresponding piston of the left hydraulic cylinder starts to hit the material, and the corresponding piston of the right hydraulic cylinder quickly runs backward to start to suck the material, as shown in Figure 4 ;

[0073] Step 5: The first piston of the left hydraulic cylinder continues to run forward, the corresponding piston of the left hydraulic cylinder continues to hit the material, when the second piston of the right hydraulic cylinder quickly runs backward to the starting point of the stroke, the magnetic displacement sensor signal is triggered, the second piston of the right hydraulic cylinder runs forward after the electromagnetic proportional valve and the three-position four-way electromagnetic valve are electrified, the taper valve cylinder 3 is closed, the taper valve cylinder 4 is closed, the corresponding piston of the left hydraulic continues to hit the material, and the corresponding piston of the right hydraulic cylinder starts to push the material forward in the right material cylinder, the material is in a gradually compacted and pressure establishing state, as shown in Figure 5 .

[0074] Based on steps 1 to 5, the corresponding pistons of the two hydraulic cylinders run alternately to realize constant pressure and constant flow conveying of the material in the pipeline.

[0075] Preferably, the left hydraulic cylinder and the right hydraulic cylinder are respectively provided with one magnetic displacement sensor.

[0076] Preferably, the preset distance is 50-60 cm.

[0077] In this embodiment, the constant flow poppet valve pump outlet material is continuously transported, the material in the pipeline is continuous and uninterrupted, and the reversing structure is four cone valves. Two hydraulic cylinders are independently operated and not connected to each other. Four cone valve cylinders independently control the opening and closing of the cone valve by four electromagnetic valves.

[0078] In this embodiment, as shown in the electrical action table. Figure 6

[0079] The beneficial effects of the above technical solutions are: two hydraulic cylinders are provided and independently controlled, and the pistons in the two material cylinders have a certain overlap section when operating. When the piston on one side approaches the end of the material cylinder and returns, the piston on the other side has moved a small distance forward in the material cylinder. In this way, the material is always transported forward in the pipeline, which belongs to constant flow transportation. In this way, the delivery pressure will not be frequently converted, which can improve the service life of the hydraulic station and the entire equipment.

[0080] The present application provides a logic control method of a constant flow poppet valve pump, which further comprises:

[0081] The first pressure sensor based on the first conveying belt arranged at the inlet detects the first pressure of the material transported to the inlet in real time;

[0082] The second pressure sensor based on the second conveying belt arranged at the outlet detects the second pressure of the material output from the outlet in real time;

[0083] The processor based on the second pressure sensor is connected, and the processor is further connected with the alarm and the display screen arranged on the base.

[0084] Preferably, it further comprises:

[0085] Based on the real-time detected first pressure and the real-time detected second pressure, a pressure matrix is constructed , wherein, , The first vector based on the first pressure and the second vector based on the second pressure are constructed in the continuous time period before the current time;

[0086] Locking The first occurrence position of the element not equal to 0 in the matrix is locked, the initial non-occurrence continuous time Tc is counted based on the first occurrence position, and the first time deviation Td is obtained based on the processor;

[0087]

[0088] , wherein, ​​represents a pre-defined discharge time period based on the second pressure; t0 represents a continuous time length around the corresponding ambient time point on both sides of the pre-defined time period T0;

[0089] a first alarm instruction is issued to the alarm according to the first time deviation Tp;

[0090] Based on the pressure matrix YN, and in time sequence, the first pressure sum and the second pressure sum based on the first vector and the second vector before each time point are calculated in turn, and according to the pressure difference between the first pressure sum and the second pressure sum, it is determined whether to set the material adding time point;

[0091] If the pressure difference is less than the set difference, at this time, a material adding instruction is issued to the alarm, and combined with Tx The earliest adding time point and combined The latest adding time point is determined, wherein Tx represents the time point when the pressure difference is less than the set difference; represents the unit reference time for pressure; represents the number of time points based on Tx in the pressure matrix YN; 、 respectively represent the first pressure and the second pressure at the i1th time point; represents the set difference; respectively represent the maximum value of the first pressure and the maximum value of the second pressure involved before Tx;

[0092] The earliest adding time point and the latest adding time point are output to the corresponding display screen for display and reminding.

[0093] In this embodiment, the time deviation is to remind whether there is a control failure or the like in the material punching process, and the first calculation is to facilitate timely processing in case of problems with the valve pump.

[0094] The beneficial effects of the above technical scheme are: by setting the first pressure sensor, the second pressure sensor, the processor, the alarm and the display screen, the inlet and outlet amounts of the material are monitored in real time, so that the material needed for punching can be provided in time, and the influence of material loss on the efficiency of constant flow is avoided.

[0095] A logic control method of a constant flow lift valve pump, further comprising:

[0096] The shooting device arranged below the discharge port continuously shoots the material image of the output material discharged onto the second conveying belt;

[0097] The shooting device is connected with the processor;

[0098] The target impurities in the material image are framed according to a preset accuracy, and a framed image is obtained;

[0099] Each framed image in the continuous shooting is analyzed respectively, and the material impurity ratio under each framed image is determined;

[0100] If the material impurity ratios are all less than a preset impurity ratio, it is determined that the material is qualified;

[0101] Otherwise, the impurity level ZD is determined.

[0102]

[0103]

[0104] Wherein, P represents the number of framed images; represents the determination function of the o1th framed image; represents the material impurity ratio of the o1th framed image; represents the preset impurity ratio;

[0105] When the impurity level ZD is greater than a preset level, the piston is controlled to work at the maximum power;

[0106] Otherwise, the piston is controlled to continue working at the current power.

[0107] In this embodiment, the preset impurity ratio is 0.2.

[0108] In this embodiment, the existence of impurities may block the pipeline, causing the material to be unable to pass smoothly, etc. Therefore, in order to avoid such a situation, the material is analyzed by shooting.

[0109] In this embodiment, the material impurity ratio = the area occupied by the impurities in the corresponding material image / the area of the corresponding material image.

[0110] The beneficial effects of the above technical solution are: by setting the shooting device, the impurities existing in the output material are conveniently determined, and it is effectively determined whether the material needs quality reminding, so as to avoid the influence of too many impurities on the normal work of the valve pump.

[0111] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A logic control method for a constant current lift valve pump, applied to a constant current lift valve pump, characterized in that, The constant flow booster pump includes: a base (1), on the upper end of which a left valve pump assembly (2), a right valve pump assembly (3), and a water tank (4) are respectively fixed; the left valve pump assembly (2) and the right valve pump assembly (3) are respectively embedded in and penetrate the middle of the water tank (4); the method includes: Step 1: The position of the corresponding piston inside the left and right hydraulic cylinders is detected by the magnetostrictive displacement sensor. The detection data of the magnetostrictive displacement sensor is transmitted to the PLC module to identify the specific position of the first piston of the left hydraulic cylinder and the second piston of the right hydraulic cylinder. At this time, the control logic of the constant flow lift valve pump starts to work. Step 2: The second piston controlled by the right hydraulic cylinder moves forward. At this time, the cone valve cylinder 3 is in the closed state and the cone valve cylinder 4 is in the open state. When the second piston reaches the preset position 1 away from the end of the stroke, the first piston controlled by the left hydraulic cylinder moves forward from the zero position. At the same time, the three-position four-way solenoid valve is energized and controls the cone valve cylinder 1 to close and the cone valve cylinder 2 to close. The material moves forward in the left material cylinder. The piston corresponding to the left hydraulic cylinder pushes the material forward to squeeze the gap but does not discharge the material. The piston corresponding to the right hydraulic cylinder discharges the material. Step 3: The first piston of the left hydraulic cylinder continues to move forward, cone valve cylinder 1 is in the closed state, cone valve cylinder 2 is in the closed state, and the material moves forward in the left material cylinder. Since the material is not in a full state, the material squeezes the gaps in the left material cylinder and builds up a certain pressure. The second piston of the right hydraulic cylinder continues to move towards the end of the stroke. The corresponding cone valve cylinder 3 is in the closed state, cone valve cylinder 4 is in the open state, the piston corresponding to the left hydraulic cylinder is in the pressure building state, and the piston corresponding to the right hydraulic cylinder continues to feed material. Step 4: When the second piston of the right hydraulic cylinder moves to the preset position 2 away from the end of the working stroke, the magnetostrictive displacement sensor signal is triggered. After the electromagnetic proportional valve and the three-position four-way solenoid valve are energized, the cone valve cylinder 3 opens and the cone valve cylinder 4 closes. At the same time, after the electromagnetic proportional valve and the three-position four-way solenoid valve are energized, the cone valve cylinder 2 is opened and the cone valve cylinder 1 remains closed. The first piston of the left hydraulic cylinder continues to move forward and the piston corresponding to the left hydraulic cylinder begins to discharge material, while the piston corresponding to the right hydraulic cylinder moves backward quickly to begin to suck up material. Step 5: The first piston of the left hydraulic cylinder continues to move forward, and the corresponding piston of the left hydraulic cylinder continues to feed material. When the second piston of the right hydraulic cylinder moves rapidly backward to the start of its stroke, it triggers the magnetostrictive displacement sensor signal. After the electromagnetic proportional valve and the three-position four-way solenoid valve are energized, the second piston of the right hydraulic cylinder moves forward, cone valve cylinder 3 closes, cone valve cylinder 4 closes, and the corresponding piston of the left hydraulic cylinder continues to feed material; the corresponding piston of the right hydraulic cylinder begins to push material forward in the right material cylinder, and the material is gradually compacted and pressure is built up. The method further includes: Based on the first pressure sensor installed on the first conveyor belt at the feed inlet, the first pressure of the material being fed into the feed inlet is detected in real time. Based on the second pressure sensor installed on the second conveyor belt at the discharge port, the second pressure of the material output from the discharge port is detected in real time. The processor is connected to the second pressure sensor and the second pressure sensor respectively, and the processor is also connected to the alarm and the display screen installed on the base. A pressure matrix is ​​constructed based on the first pressure detected in real time and the second pressure detected in real time. ,in, , These are respectively the first vector constructed based on the first pressure and the second vector constructed based on the second pressure in the continuous time period before the current moment; locking The first occurrence position of non-zero elements is determined, and the initial non-continuous occurrence duration Tc is calculated based on the first occurrence position. The initial time deviation is obtained based on the processor. ; in, t0 represents the predefined discharge time period based on the second pressure; t0 represents the continuous duration on both sides of the time point T0 around the predefined time. According to the initial time deviation Tp, a first alarm command is sent to the alarm device.

2. The logic control method for the constant current booster valve pump according to claim 1, characterized in that, The left valve pump assembly (2) includes: a left hydraulic cylinder (21), a left material cylinder (22), a cone valve cylinder 1 (23), a cone valve cylinder 2 (24), a suction chamber 1 (25), and a pressing chamber 1 (26); The left hydraulic cylinder (21) is embedded in and passes through the middle of the water tank (4). From right to left, the left material cylinder (22), suction chamber 1 (25), pressing chamber 1 (26), and cone valve cylinder 2 (24) are arranged in sequence. The cone valve cylinder 1 (23) is located at the lower part of the suction chamber 1 (25); The right valve pump assembly (3) includes: a right hydraulic cylinder (31), a right material cylinder (32), a cone valve cylinder 3 (33), a cone valve cylinder 4 (34), a suction chamber 2 (35), and a pressing chamber 2 (36); The right hydraulic cylinder (31) is embedded in and passes through the middle of the water tank (4). From right to left, the right material cylinder (32), suction chamber 2 (35), pressing chamber 2 (36), and cone valve cylinder 4 (34) are arranged in sequence. The cone valve cylinder 3 (33) is located at the lower part of the suction chamber 2 (35); The top of the suction chamber 1 (25) and the suction chamber 2 (35) are provided with inlets (5), and the bottom of the pressing chamber 1 (26) and the pressing chamber 2 (36) are provided with outlets (6).

3. The logic control method for the constant current booster valve pump according to claim 1, characterized in that, The left and right hydraulic cylinders are each equipped with a magnetostrictive displacement sensor.

4. The logic control method for the constant current booster valve pump according to claim 1, characterized in that, The preset distance is 50-60cm.

5. The logic control method for the constant current booster valve pump according to claim 1, characterized in that, Also includes: Based on the pressure matrix YN, the first pressure sum based on the first vector and the second pressure sum based on the second vector are calculated sequentially before each time point in chronological order. Based on the pressure difference between the first pressure sum and the second pressure sum, it is determined whether a material addition time point needs to be set. If the pressure difference is less than the set difference, a material addition command is issued to the alarm, and combined with Tx+ Determine the earliest addition time point and combine Determine the latest time point to add the pressure, where Tx represents the time point when the pressure difference is less than the set difference; Indicates the unit of time relative to pressure; This represents the number of time points in the pressure matrix YN prior to Tx; , These represent the first pressure and the second pressure at the i1th time point, respectively. Indicates the setting difference; These represent the maximum values ​​of the first and second pressures involved before Tx, respectively; The earliest and latest addition times are output to the corresponding displays for reminders.

6. The logic control method for the constant current booster valve pump according to claim 1, characterized in that, Also includes: The imaging device located below the discharge port continuously captures images of the output material being discharged onto the second conveyor belt. The imaging device is connected to the processor; The target impurities in the material image are selected by boxing according to a preset precision to obtain a box selection image; Each frame of the continuously captured images is analyzed to determine the proportion of impurities in each frame. If the proportion of impurities in all materials is less than the preset impurity proportion, the materials are deemed qualified. Otherwise, determine the impurity level as ZD; Where P represents the number of selected images; This represents the decision function for the o1th frame selection image; This indicates the percentage of material impurities in the o1th frame selection image; Indicates the preset impurity percentage; When the impurity level ZD is greater than the preset level, the piston is controlled to work at maximum power. Otherwise, the control piston continues to operate at the current power.

Images