CN111166969A - Control system and control method of split type injection pump - Google Patents
Control system and control method of split type injection pump Download PDFInfo
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- CN111166969A CN111166969A CN201811348410.XA CN201811348410A CN111166969A CN 111166969 A CN111166969 A CN 111166969A CN 201811348410 A CN201811348410 A CN 201811348410A CN 111166969 A CN111166969 A CN 111166969A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2006—Having specific accessories
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a control system and a control method of a split type injection pump, which can simultaneously control a plurality of split type injection pump units, set different working modes for different split type injection pump units respectively, work independently of each other without mutual influence among the split type injection pump units, and can also work according to the sequence of logic relations, thereby meeting the diversified use requirements of customers and reducing the user cost. The automatic calibration device also has a calibration function, automatically calibrates the filling amount before production, ensures the filling precision, has an online fine adjustment function, and is convenient for fine adjustment of each unit in the production process.
Description
Technical Field
The invention relates to the technical field of injection pump control, in particular to a control system and a control method of a split type injection pump.
Background
At present, in a split-type micro-fluid injection control system existing in the market, a controller controls a split-type injection pump to have a single operation mode, and only can control the split-type injection pump to be in the same operation mode. If the use mode of a user is complicated, a plurality of injection pumps are needed to work in a matching way, and only a plurality of injection pump products with control systems can be purchased again, so that the purchase cost is increased.
Therefore, how to satisfy more different usage modes of users and further reduce the user cost is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a control system and a control method for a split syringe pump, which can satisfy a more complicated usage manner for a user, and does not need to purchase a plurality of syringe pump products with controllers, thereby reducing the user cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a control system for a split syringe pump comprising: the system comprises an effective unit control module, an independent operation control module, a logic operation control module, a parameter setting module, a calibration/fine adjustment module and a control interface; the independent operation control module and the logic operation control module are connected with a plurality of split injection pump units; in particular, the device is connected with the split type injection pump unit through a control interface.
The effective unit control module is used for setting the split type injection pump unit into an effective split type injection pump unit and a corresponding working mode, and the working mode comprises the following steps: one of a stand-alone mode of operation or a logical mode of operation;
the independent operation control module is used for carrying out operation according to a first working parameter; the first working parameter is a working parameter of the effective split injection pump unit in an independent operation mode set by the parameter setting module;
the logic operation control module is used for performing operation according to a second working parameter and a set first step of starting; the second working parameter is a working parameter of the effective split injection pump unit in a logic operation mode set by the parameter setting module;
the parameter setting module is used for setting the first working parameter and the second working parameter;
the calibration/fine adjustment module is used for carrying out flow calibration or online fine adjustment on the split type injection pump unit; when the split type injection pump unit is in a stop state, the split type injection pump unit is subjected to liquid quantity calibration through the calibration/fine adjustment module; if the split type injection pump unit is in the running state, the split type injection pump unit is subjected to online fine adjustment through the calibration/fine adjustment module;
each split syringe pump unit comprises: the device comprises a base, a motor, a push rod device, an injector mounting device and an injector, wherein the motor, the push rod device, the injector mounting device and the injector are fixed on the base; wherein the motor is connected with the control interface;
one end of the injector is fixed on the push rod device, the other end of the injector is fixed on the injector mounting device, and the motor drives the lead screw to run, so that the push rod device is pushed to run on the polished rod, and the injector is driven to extract or fill; wherein, a limiting block is arranged on the screw rod.
Preferably, the push rod device includes: a sliding plate and a push rod fastening plate; the syringe mounting device includes: an injector mounting plate and an injector securing plate;
two ends of the push rod fastening plate are fixed on the sliding plate through push rod fastening plate buttons; the two ends of the injector fastening plate are fixed on the injector mounting plate through the injector fastening plate knobs; the top of the injector mounting plate is also provided with an injector pressure plate; the injector pressure plate is fixed on the injector mounting plate through a bolt;
a first synchronous belt wheel is installed on the motor, and a second synchronous belt wheel is installed on the screw rod; the first synchronous belt wheel is connected with the second synchronous belt wheel through a synchronous belt;
the screw rod and the feed rod penetrate through the sliding plate and the push rod fastening plate, and the screw rod is positioned between the two feed rods;
and a clutch button is arranged on the side surface of the sliding plate and below the push rod fastening plate button.
Preferably, the clutch button includes: the top block, the nut and the spring are sequentially arranged in the sliding block in a contact manner;
the top block is provided with a first through hole, and the nut is provided with a half nut;
the feed rod penetrates through the first through hole, the lead screw penetrates through the half nut, and under the action of the spring, the lead screw is meshed with the half nut.
Preferably, the method further comprises the following steps: and the external control module is used for receiving and executing external start-stop, reversing, traffic jam alarming and 485/232 communication control signals of each split injection pump unit.
Preferably, the method further comprises the following steps: and the monitoring alarm module is used for displaying the running state of each split injection pump unit in real time in an animation manner, and giving an alarm if the traffic jam occurs.
A method of controlling a split syringe pump, comprising: a control system suitable for the split injection pump; the control method comprises the following steps:
set for split type syringe pump unit to effective components of a whole that can function independently syringe pump unit and corresponding mode through effective unit control module, the mode includes: one of an independent operation mode or a logic operation mode;
if the split type injection pump unit is set to be an independently operated effective split type injection pump unit, setting a first working parameter through a parameter setting module; the independent operation control module performs operation according to the first working parameter;
wherein the first operating parameter comprises: the type of the injector, the starting delay, the repetition times, the backspacing step number, the extraction/perfusion amount, the extraction/perfusion time and the extraction/perfusion interval time;
if the split type injection pump unit is set to be a logically-operated effective split type injection pump unit, setting a second working parameter through a parameter setting module; the logic operation control module performs operation based on the second working parameter and the set first step of starting;
wherein the second operating parameter comprises: the type of the injector, the number of steps, the starting delay, the number of times of repetition, the number of backspacing steps, the extraction/perfusion amount, the extraction/perfusion time and the extraction/perfusion interval time;
the split type injection pump unit is subjected to flow calibration or online fine adjustment through a calibration/fine adjustment module; when the split type injection pump unit is in a stop state, the split type injection pump unit is subjected to liquid quantity calibration through the calibration/fine adjustment module; and if the split-type injection pump unit is in the running state, performing online fine adjustment on the split-type injection pump unit through the calibration/fine adjustment module.
Preferably, the method further comprises the following steps: the external control module receives and executes external start-stop, reversing, traffic jam alarming and 485/232 communication control signals of each split injection pump unit independently.
Preferably, the method further comprises the following steps: the split syringe pump unit operating at full speed and the corresponding direction are selected by the fast forward/fast reverse module.
Preferably, the method further comprises the following steps: the running state of each split injection pump unit is displayed through the monitoring alarm module in real time in an animation mode, and if traffic jam occurs, an alarm is given out.
According to the technical scheme, compared with the prior art, the control system and the control method of the split injection pump can control a plurality of split injection pump units simultaneously, different working modes can be set for different split injection pump units respectively, the split injection pump units work independently and independently without mutual influence, and can work according to the logical relation sequence, so that the diversified use requirements of customers can be met, and the user cost is reduced. The automatic calibration device also has a calibration function, automatically calibrates the filling amount before production, ensures the filling precision, has an online fine adjustment function, and is convenient for fine adjustment of each unit in the production process.
In addition, the system setting of each unit can be displayed in a polling mode on the same screen through the monitoring alarm module, real-time monitoring is achieved, an alarm function is achieved, and safety production is guaranteed. Moreover, the position of the limiting block is adjusted, so that the injector can be prevented from being damaged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a control method of a split syringe pump according to the present invention;
FIG. 2 is a first schematic structural diagram of a split syringe pump unit provided by the present invention;
FIG. 3 is a schematic structural diagram II of the split type syringe pump unit provided by the present invention;
FIG. 4 is a first schematic structural diagram of a clutch button according to the present invention;
FIG. 5 is a second schematic structural view of a clutch button according to the present invention;
fig. 6 is a schematic structural diagram of a half-nut provided by the present invention.
The automatic injection molding device comprises a base 1, a base 2, a lead screw 3, a polished rod 4, a limiting block 5, a sliding plate 6, a push rod fastening plate 7, a motor 8, an injector mounting plate 9, an injector fastening plate 10, a push rod fastening plate button 11, an injector fastening plate knob 12, a clutch button 13, an injector pressing plate 71, a synchronous pulley I, a synchronous pulley II, a synchronous pulley 73, a synchronous belt 121, an ejector block 122, a nut 123, a spring 124, a through hole I, a through hole 125 and a half nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A control system for a split syringe pump comprising: the system comprises an effective unit control module, an independent operation control module, a logic operation control module, a parameter setting module, a calibration/fine adjustment module and a control interface; the independent operation control module and the logic operation control module are connected with a plurality of split injection pump units;
the effective unit control module is used for setting the split type injection pump unit to be the effective split type injection pump unit and the corresponding working mode, and the working mode comprises the following steps: one of a stand-alone mode of operation or a logical mode of operation;
the independent operation control module is used for carrying out operation according to the first working parameter; the first working parameter is a working parameter of the effective split injection pump unit in an independent operation mode set by the parameter setting module;
the logic operation control module is used for performing operation according to the second working parameter and the set first step of starting; the second working parameter is the working parameter of the effective split injection pump unit in the logic operation mode set by the parameter setting module;
the parameter setting module is used for setting a first working parameter and a second working parameter;
the calibration/fine adjustment module is used for carrying out flow calibration or online fine adjustment on the split type injection pump unit; when the split type injection pump unit is in a stop state, the split type injection pump unit is subjected to liquid quantity calibration through the calibration/fine adjustment module; if the split type injection pump unit is in the running state, the split type injection pump unit is subjected to online fine adjustment through the calibration/fine adjustment module;
each split syringe pump unit comprises: the device comprises a base 1, a motor, a push rod device, an injector mounting device and an injector, wherein the motor, the push rod device, the injector mounting device and the injector are fixed on the base 1; wherein, the motor is connected with the control interface;
one end of the injector is fixed on the push rod device, the other end of the injector is fixed on the injector mounting device, and the motor 7 drives the lead screw 2 to run, so that the push rod device is pushed to run on the polished rod 3, and the injector is driven to extract or fill; wherein, a limiting block 4 is arranged on the light bar 3.
With reference to fig. 2-6, in order to further optimize the above solution, the pusher device comprises: a sliding plate 5 and a push rod fastening plate 6; the syringe mounting device includes: an injector mounting plate 8 and an injector securing plate 9;
two ends of the push rod fastening plate 6 are fixed on the sliding plate 5 through push rod fastening plate buttons 10; two ends of the injector fastening plate 9 are fixed on the injector mounting plate 8 through the injector fastening plate knobs 11; the top of the injector mounting plate 8 is also provided with an injector pressure plate 13; the injector pressure plate 13 is fixed to the injector mounting plate 8 by bolts.
A synchronous pulley I71 is arranged on the motor 7, and a synchronous pulley 73 and a pulley II 72 are arranged on the lead screw 2; the synchronous pulley I71 is connected with the synchronous pulley II 72 through a synchronous belt 73;
the screw rod 2 and the optical bars 3 penetrate through the sliding plate 5 and the push rod fastening plate 6, and the screw rod 2 is positioned between the two optical bars 3;
and a clutch button 12 is installed on the side of the sliding plate 5 and below the push rod fastening plate button 10.
It should be noted that a protective shell is covered on the second synchronous pulley 72, and holes matched with the screw rod 2 and the feed rod 3 are formed in the protective shell. One end of the screw rod 2 penetrates through a hole on the protective shell to be connected with the second synchronous pulley 72, and the other end of the screw rod penetrates through the sliding plate 5 to be connected with the injector mounting plate 8.
With reference to fig. 4 to 6, in order to further optimize the above solution, the clutch button 12 comprises: a top block 121, a nut 122 and a spring 123 which are sequentially arranged in the sliding block in a contact manner;
a first through hole 124 is formed in the top block 121, and a half nut 125 is formed in the nut 122;
the optical rod 3 passes through the first through hole 124, the lead screw 2 passes through the half nut 125, and under the action of the spring 123, the lead screw 2 is engaged with the half nut 125.
The ejection block, the nut and the spring are in contact with each other, the ejection block abuts against the nut, the nut abuts against the spring, and the ejection block, the nut and the spring are all arranged in the through hole.
The engaged state is shown in fig. 4, and the nut is disengaged from the lead screw under the action of external force, which is shown in fig. 5. In addition, referring to fig. 4 and 5, a groove is arranged at the top of the top block and is limited in the through hole through a limiting ball, so that the top block, the nut and the spring are prevented from being separated.
It should be noted here that a knob hole is opened at a position of the sliding plate 5 corresponding to the push rod fastening plate button 10; a through hole for accommodating the top block 121, the nut 122 and the spring 123 is formed in the position corresponding to the clutch button 12, one end of the spring 123 is fixed in the through hole, the other end of the spring 123 is abutted against the nut 122 with the half nut 125, and the nut 122 is arranged in contact with the top block 121; wherein, the top block 121 is provided with a first through hole 124, and the light bar 3 close to one side of the clutch button 12 passes through the first through hole 124; the screw 2 passes through the half nut 125 on the nut 122, and under the action of the spring 123, the screw 2 is engaged with the nut 122. When subjected to an external force, the nut 122 disengages from the screw 2, thereby sliding the slide plate 5.
The split syringe pump unit 88 provided by the present invention will be further described below in conjunction with the syringe mounting procedure.
Rotating two push rod fastening plate buttons 10 on the side surface of the sliding plate 5, opening the push rod fastening plate 6, rotating two injector fastening plate knobs 11 on the side surface of the injector mounting plate 8, opening the injector fastening plate 9, lifting and rotating the injector pressing plate, putting the injector in the injector, adjusting the injector to a proper position, rotating the injector pressing plate to press the injector, and screwing each knob to fix the injector. The position of the limiting block is adjusted to prevent the syringe from being damaged, and the syringe is particularly suitable for glass sample injectors.
In order to further optimize the above technical solution, the method further comprises: and the external control module is used for receiving and executing external start-stop, reversing, traffic jam alarming and 485/232 communication control signals of each split injection pump unit.
In order to further optimize the above technical solution, the method further comprises: and the monitoring alarm module is used for displaying the running state of each split injection pump unit in real time in an animation manner, and giving an alarm if the traffic jam occurs.
A method of controlling a split syringe pump, comprising: a control system suitable for the split injection pump; the control method comprises the following steps:
set for split type syringe pump unit through effective unit control module and be effective components of a whole that can function independently syringe pump unit and corresponding mode, the mode includes: one of an independent operation mode or a logic operation mode;
if the split type injection pump unit is set to be an independently operated effective split type injection pump unit, setting a first working parameter through a parameter setting module; the independent operation control module performs operation according to the first working parameter;
wherein the first operating parameter comprises: the type of the injector, the starting delay, the repetition times, the backspacing step number, the extraction/perfusion amount, the extraction/perfusion time and the extraction/perfusion interval time;
if the split type injection pump unit is set to be a logically-operated effective split type injection pump unit, setting a second working parameter through a parameter setting module; the logic operation control module performs operation based on the second working parameter and the set first step of starting;
wherein the second operating parameter comprises: the type of the injector, the number of steps, the starting delay, the number of times of repetition, the number of backspacing steps, the extraction/perfusion amount, the extraction/perfusion time and the extraction/perfusion interval time;
the split type injection pump unit is subjected to flow calibration or online fine adjustment through a calibration/fine adjustment module; when the split type injection pump unit is in a stop state, the split type injection pump unit is subjected to liquid quantity calibration through the calibration/fine adjustment module; and if the split-type injection pump unit is in the running state, performing online fine adjustment on the split-type injection pump unit through the calibration/fine adjustment module.
In order to further optimize the above technical solution, the method further comprises: the external control module receives and executes external start-stop, reversing, traffic jam alarming and 485/232 communication control signals of each split injection pump unit independently.
The control system of the split injection pump provided by the invention can be controlled by each module of the control system, and can also receive external control signals through the external control module, so that the control mode is more diversified.
In order to further optimize the above technical solution, the method further comprises: the split syringe pump unit operating at full speed and the corresponding direction are selected by the fast forward/fast reverse module.
The fast-forward/fast-backward module can control the motor to run fast to realize fast extraction and perfusion.
In order to further optimize the above technical solution, the method further comprises: the running state of each split injection pump unit is displayed through the monitoring alarm module in real time in an animation mode, and if traffic jam occurs, an alarm is given out.
During specific implementation, the running states of the split injection pump units can be polled on one monitoring interface, if a traffic jam condition is found, an alarm is sent out, and workers can be reminded conveniently and timely so that the workers can take corresponding measures.
The control system and the control method of the split injection pump provided by the invention have the following characteristics:
1) the injector with various models can be installed through the push rod device and the injector installation device, and the universality is high.
2) The precise angle control technology realizes high-precision distribution;
3) the color touch screen is used for controlling, the interface is friendly, the perfusion state is displayed in an animation mode, and the system settings of a plurality of units are displayed in a polling mode on the same screen.
4) The intelligent calibration function automatically calibrates the filling amount before production, and ensures the filling precision.
5) The online fine adjustment function is convenient for fine adjustment of liquid quantity of a certain filling unit in the production process, so that filling errors caused by fatigue and reduction of elasticity of the hose are prevented.
6) A plurality of distribution units can be expanded on one controller, and cost is saved to the maximum extent.
7) Each unit is independently controlled, different filling parameters can be set, and the start and the stop are independent or simultaneous.
8) Real-time monitoring, animation display monitoring results, and the device has an alarm function, so that safe production is ensured.
9) The effective unit setting can arbitrarily open or close one or more distribution units, and can set one or more distribution units to be in a logic operation mode or an independent operation mode, thereby meeting the requirements of different distributions.
10) The arrangement of the backspacing steps can eliminate air bubbles in the injector and simultaneously avoid the liquid at the needle head from dripping.
11) The external control start-stop function is realized, each channel can independently receive an external control start-stop signal, all effective channels can be started and stopped simultaneously, and unified operation of an upper computer can be realized through 232 or 485 communication.
12) The controller can receive the independent traffic jam signal of each channel, realizes that the traffic jam of independent channel shuts down the warning energy supply, ensures the safety in production. The plurality of split injection pumps run independently without interference. When one split injection pump is in fault and is in traffic jam, the upper computer controller can send an alarm prompt and send a stop signal to the split injection pump in traffic jam after receiving a traffic jam signal of the injection pump, and other split injection pumps which are not in traffic jam operate unaffected and continue to operate normally according to operation parameters.
13) The fast forward and fast backward functions are used for loading and cleaning the injector and relieving the traffic jam protection state.
14) The syringe can be prevented from being damaged by adjusting the position of the limiting block.
It should be further noted that, in the specific implementation, the traffic jam alarm is implemented by feeding back a pulse signal of a code wheel constantly monitored by a photoelectric sensor installed on a motor shaft to the controller, and if the motor is in a traffic jam state, the detection signal is abnormal and then the detection signal is fed back to the controller to perform shutdown alarm prompt.
The technical solution of the present invention is further explained with reference to fig. 1 and the operation steps of the independent operation mode and the logic operation mode.
The operation steps of the independent operation mode are as follows:
1) clicking an effective unit key on the main interface, entering an effective unit selection interface, and setting an x unit as an effective split type injection pump unit;
2) and returning to the main interface to select the x unit and entering a parameter setting interface, wherein the parameter setting comprises the following steps: syringe model, start-up delay, number of repetitions, number of backoff steps, draw/prime volume, draw/prime time, and draw/prime interval time.
3) And returning to the main interface, and independently operating the area: clicking an adding button and a subtracting button which are independently started and stopped on an operation screen can select a unit which is required to be operated, and 'ALL' is effective unit operation for ALL independent operations.
4) Returning to the main interface to select the x unit to enter a parameter setting interface, clicking a calibration button to enter a flow calibration interface, if the unit is in a stop state, performing liquid quantity calibration on the unit, and if the unit is running, only performing online fine adjustment on the unit;
5) in the unit running state, the main interface selects the x unit to enter the system setting and the perfusion parameter which can be checked, and fine tuning and calibration can be carried out on the perfusion parameter of the unit.
The operation steps of the logic operation mode are as follows:
1) clicking an effective unit key on the main interface, entering an effective unit selection interface, and setting an x unit as an effective split type injection pump unit;
2) and returning to the main interface to select the x unit and entering a parameter setting interface, wherein the parameter setting comprises the following steps: syringe model, number of steps, start-up delay, number of repetitions, number of backoff steps, draw/prime volume, draw/prime time, draw/prime interval time. The set parameters can be stored, and the power-down memory function is achieved.
3) Exit to the Main interface, logical run area: clicking the start button pops up a step selection window, the window can select the first step which needs to be started in the logic operation, and after the logic operation is started, clicking the start button again can pause the current logic. Automatically stopping after the logic operation reaches the set repetition times;
4) under the unit stop state, the main interface selects the x unit to enter a parameter setting interface, selects a correction key to enter a flow calibration interface, and calibrates the liquid amount; in the unit running state, the main interface selects the x unit to enter the system setting and the perfusion parameter which can be checked, and fine tuning and calibration can be carried out on the perfusion parameter of the unit.
In the control method of the split injection pump provided by the invention, the flow rate is corrected in two ways, one way is to set the perfusion volume and the perfusion time in a stop state, and the current flow rate is corrected by measuring the volume of the perfusion liquid; a method for fine-tuning the amount of liquid by measuring the volume of liquid poured in the operating or stopping state.
The split injection pump control system provided by the invention comprises a plurality of external control modes: the control system can independently receive control signals of external start-stop, reversing, traffic jam alarm, 485/232 communication and the like of each split injection pump unit; the control system can receive the integral start-stop signals outside all the effective split injection pump units.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A control system for a split syringe pump, comprising: the system comprises an effective unit control module, an independent operation control module, a logic operation control module, a parameter setting module, a calibration/fine adjustment module and a control interface; the independent operation control module and the logic operation control module are connected with a plurality of split injection pump units;
the effective unit control module is used for setting the split type injection pump unit into an effective split type injection pump unit and a corresponding working mode, and the working mode comprises the following steps: one of a stand-alone mode of operation or a logical mode of operation;
the independent operation control module is used for carrying out operation according to a first working parameter; the first working parameter is a working parameter of the effective split injection pump unit in an independent operation mode set by the parameter setting module;
the logic operation control module is used for performing operation according to a second working parameter and a set first step of starting; the second working parameter is a working parameter of the effective split injection pump unit in a logic operation mode set by the parameter setting module;
the parameter setting module is used for setting the first working parameter and the second working parameter;
the calibration/fine adjustment module is used for carrying out flow calibration or online fine adjustment on the split type injection pump unit; when the split type injection pump unit is in a stop state, the split type injection pump unit is subjected to liquid quantity calibration through the calibration/fine adjustment module; if the split type injection pump unit is in the running state, the split type injection pump unit is subjected to online fine adjustment through the calibration/fine adjustment module;
each split syringe pump unit comprises: the device comprises a base, a motor, a push rod device, an injector mounting device and an injector, wherein the motor, the push rod device, the injector mounting device and the injector are fixed on the base; wherein the motor is connected with the control interface;
one end of the injector is fixed on the push rod device, the other end of the injector is fixed on the injector mounting device, and the motor drives the lead screw to run, so that the push rod device is pushed to run on the polished rod, and the injector is driven to extract or fill; wherein, a limiting block is arranged on the screw rod.
2. The control system of a split syringe pump of claim 1, wherein the pusher means comprises: a sliding plate and a push rod fastening plate; the syringe mounting device includes: an injector mounting plate and an injector securing plate;
two ends of the push rod fastening plate are fixed on the sliding plate through push rod fastening plate buttons; the two ends of the injector fastening plate are fixed on the injector mounting plate through the injector fastening plate knobs; the top of the injector mounting plate is also provided with an injector pressure plate; the injector pressure plate is fixed on the injector mounting plate through a bolt;
a first synchronous belt wheel is installed on the motor, and a second synchronous belt wheel is installed on the screw rod; the first synchronous belt wheel is connected with the second synchronous belt wheel through a synchronous belt;
the screw rod and the feed rod penetrate through the sliding plate and the push rod fastening plate, and the screw rod is positioned between the two feed rods;
and a clutch button is arranged on the side surface of the sliding plate and below the push rod fastening plate button.
3. The control system of a split syringe pump of claim 2, wherein the clutch button comprises: the top block, the nut and the spring are sequentially arranged in the sliding block in a contact manner;
the top block is provided with a first through hole, and the nut is provided with a half nut;
the feed rod penetrates through the first through hole, the lead screw penetrates through the half nut, and under the action of the spring, the lead screw is meshed with the half nut.
4. The control system of a split syringe pump of claim 1, further comprising: and the external control module is used for receiving and executing external start-stop, reversing, traffic jam alarming and 485/232 communication control signals of each split injection pump unit.
5. The control system of a split syringe pump of claim 1, further comprising: and the monitoring alarm module is used for displaying the running state of each split injection pump unit in real time in an animation manner, and giving an alarm if the traffic jam occurs.
6. A method of controlling a split syringe pump, comprising: a control system adapted for use with the split syringe pump of any of claims 1-5; the control method comprises the following steps:
set for split type syringe pump unit to effective components of a whole that can function independently syringe pump unit and corresponding mode through effective unit control module, the mode includes: one of an independent operation mode or a logic operation mode;
if the split type injection pump unit is set to be an independently operated effective split type injection pump unit, setting a first working parameter through a parameter setting module; the independent operation control module performs operation according to the first working parameter;
wherein the first operating parameter comprises: the type of the injector, the starting delay, the repetition times, the backspacing step number, the extraction/perfusion amount, the extraction/perfusion time and the extraction/perfusion interval time;
if the split type injection pump unit is set to be a logically-operated effective split type injection pump unit, setting a second working parameter through a parameter setting module; the logic operation control module performs operation based on the second working parameter and the set first step of starting;
wherein the second operating parameter comprises: the type of the injector, the number of steps, the starting delay, the number of times of repetition, the number of backspacing steps, the extraction/perfusion amount, the extraction/perfusion time and the extraction/perfusion interval time;
the split type injection pump unit is subjected to flow calibration or online fine adjustment through a calibration/fine adjustment module; when the split type injection pump unit is in a stop state, the split type injection pump unit is subjected to liquid quantity calibration through the calibration/fine adjustment module; and if the split-type injection pump unit is in the running state, performing online fine adjustment on the split-type injection pump unit through the calibration/fine adjustment module.
7. The method of controlling a split syringe pump of claim 6, further comprising: the external control module receives and executes external start-stop, reversing, traffic jam alarming and 485/232 communication control signals of each split injection pump unit independently.
8. The method of controlling a split syringe pump of claim 6, further comprising: the split syringe pump unit operating at full speed and the corresponding direction are selected by the fast forward/fast reverse module.
9. The method of controlling a split syringe pump of claim 6, further comprising: the running state of each split injection pump unit is displayed through the monitoring alarm module in real time in an animation mode, and if traffic jam occurs, an alarm is given out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811348410.XA CN111166969A (en) | 2018-11-13 | 2018-11-13 | Control system and control method of split type injection pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811348410.XA CN111166969A (en) | 2018-11-13 | 2018-11-13 | Control system and control method of split type injection pump |
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| CN111166969A true CN111166969A (en) | 2020-05-19 |
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| CN114041454A (en) * | 2021-11-11 | 2022-02-15 | 首都医科大学附属北京安贞医院 | Tissue perfusion control method and device and perfusion system |
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