CN115823044A - Air cylinder air pressure control device - Google Patents
Air cylinder air pressure control device Download PDFInfo
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- CN115823044A CN115823044A CN202111486611.8A CN202111486611A CN115823044A CN 115823044 A CN115823044 A CN 115823044A CN 202111486611 A CN202111486611 A CN 202111486611A CN 115823044 A CN115823044 A CN 115823044A
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The application discloses a cylinder air pressure control device, which comprises an air path assembly and a cylinder, wherein the air path assembly is at least provided with a group of high-pressure air path assemblies and at least one group of low-pressure air path assemblies which are connected with at least one cylinder to be controlled, the high-pressure air path assembly is provided with a high-pressure electromagnetic valve and a high-pressure electric proportional valve, and the low-pressure air path assembly is provided with a low-pressure electromagnetic valve and a low-pressure electric proportional valve; therefore, the pressure precision of the air cylinder is improved, the running time is shortened, the equipment action efficiency is improved, and the product quality and the processing efficiency are integrally improved.
Description
Technical Field
The application relates to electric core plastic field, concretely relates to cylinder air pressure controlling means in naked electric core hot pressing plastic process.
Background
With the development of new energy automobiles, batteries, which are the main energy sources of electric vehicles, have been further developed. The lithium ion battery has the characteristics of high voltage, large specific energy, long cycle life, good safety performance, small self-discharge, quick charge, large working temperature range and the like, and has wide application prospect in electric vehicles.
In the production process of the lithium battery, after pole pieces are produced, the positive pole piece, the negative pole piece and the diaphragm are assembled and manufactured in a winding or lamination mode to form a basic battery core. Subsequently, the cell is typically hot pressed to shape. The main purpose of hot-pressing and shaping the battery cell is to improve the flatness of the lithium ion battery, so that the thickness of the battery cell meets the requirement and has high consistency; and secondly, the diaphragm wrinkles are eliminated, and air in the battery cell is expelled, so that the diaphragm and the positive and negative pole pieces are tightly attached together, the lithium ion diffusion distance is shortened, and the internal resistance of the battery is reduced.
The existing shaping equipment enables the force value between each level of the press to be balanced in a mode of jacking the pressing plate by using an air cylinder, and deviation is easy to occur in the pressure control accuracy; therefore, the shaped battery core has certain deviation, the flatness of the battery is poor, the thickness of the battery core is uneven, the charging and discharging functions and the service life are influenced, and a battery diaphragm and an electrode plate can be damaged. The current lithium battery cell shaping process has the problems that the moving time of a pressing plate is long, the working efficiency is low, the shaping pressure control precision is not high, the product quality is influenced, the defective rate is high and the like.
Disclosure of Invention
In view of above-mentioned problem, the application provides a cylinder air pressure control device, can improve the pressure precision of cylinder, shortens operating duration, promotes equipment action efficiency, wholly promotes product quality and machining efficiency.
In a first aspect, the application provides a cylinder air pressure control device, including gas circuit subassembly and cylinder, the gas circuit subassembly is equipped with a set of high-pressure gas circuit subassembly at least and a set of low pressure gas circuit subassembly at least and is connected with at least one cylinder of control, the high-pressure gas circuit subassembly is equipped with high-pressure solenoid valve and high-pressure electric proportional valve, the low pressure gas circuit subassembly is equipped with low-pressure solenoid valve and low-pressure electric proportional valve.
In the technical scheme of this application embodiment, through setting up solenoid valve and electric proportional valve control cylinder alone to set up the combination of two at least electric proportional valves of high-pressure electric proportional valve and low-pressure electric proportional valve simultaneously. The air pressure of one air cylinder can be controlled by connecting one high-pressure electric proportional valve with one low-pressure electromagnetic valve through one high-pressure electromagnetic valve, or a plurality of air cylinders are provided with a plurality of groups of air path structures for independent control. The design enables the high-voltage electric proportional valve to reach an established value and then the low-voltage electric proportional valve to reach a target value when the control cylinder moves, efficiency is improved remarkably, and accuracy is improved greatly.
In some embodiments, the high-pressure gas circuit component and the low-pressure gas circuit component control the gas pressure of one cylinder together, the high-pressure gas circuit component is provided with a high-pressure electromagnetic valve and a high-pressure electric proportional valve, and the low-pressure gas circuit component is provided with a low-pressure electromagnetic valve and a low-pressure electric proportional valve, so that the rapid pressure of the cylinder can be adjusted, and the adjusting speed and accuracy are improved.
In some embodiments, the high-pressure gas circuit component and the low-pressure gas circuit component control the gas pressure of the two cylinders together, the high-pressure gas circuit component is provided with a high-pressure electromagnetic valve and a high-pressure electric proportional valve, and the low-pressure gas circuit component is provided with a low-pressure electromagnetic valve and a low-pressure electric proportional valve. Realize more quick pressure adjustment for the pressure adjustment that regulating speed and precision are quick, accelerate regulating speed and precision.
In some embodiments, each cylinder is provided with a group of the high-pressure air path assemblies and a group of the low-pressure air path assemblies for control, the high-pressure air path assemblies are provided with high-pressure electromagnetic valves and high-pressure electric proportional valves, and the low-pressure air path assemblies are provided with low-pressure electromagnetic valves and low-pressure electric proportional valves. This connected mode sets up high-pressure gas circuit subassembly and low pressure gas circuit subassembly control alone to every cylinder, and the pressure adjustment of each cylinder is adjusted to quick accurate realization more for the pressure adjustment that governing speed and precision are quick, accelerates governing speed and precision.
In some embodiments, specifically, the high-pressure gas circuit component and the low-pressure gas circuit component are respectively provided with 2 groups of gas pressures for controlling two cylinders, one group of the high-pressure gas circuit component and one group of the low-pressure gas circuit component are connected with one cylinder, the other group of the high-pressure gas circuit component and the low-pressure gas circuit component control the gas pressure of the other cylinder, the high-pressure gas circuit component is provided with a high-pressure electromagnetic valve and a high-pressure electric proportional valve, and the low-pressure gas circuit component is provided with a low-pressure electromagnetic valve and a low-pressure electric proportional valve. This connected mode sets up high-pressure gas circuit subassembly and low pressure gas circuit subassembly control alone to every cylinder, and the pressure adjustment of each cylinder is adjusted to quick accurate realization more for the pressure adjustment that governing speed and precision are quick, accelerates governing speed and precision.
In some embodiments, the high-pressure air path assembly is provided with a plurality of stages of high-pressure air path assemblies, and the control pressure of the high-pressure electric proportional valve of each stage of high-pressure air path assembly is different. Therefore, the set high-voltage target value can be reached more quickly, the next step of control is accelerated, and the overall control speed and accuracy are improved.
In some embodiments, the low-pressure air passage assembly is provided with a plurality of stages of low-pressure air passage assemblies, and the control pressure of the low-pressure electric proportional valve of each stage of low-pressure air passage assembly is different. Therefore, the set low-pressure target value can be reached more quickly, the control of the next step is accelerated, and the overall control speed and accuracy are improved.
In some embodiments, the high-pressure gas circuit component is provided with a first-stage high-pressure gas circuit component and two sets of second-stage high-pressure gas circuit components, the cylinder is controlled by the first-stage high-pressure gas circuit component, the second-stage high-pressure gas circuit components and the low-pressure gas circuit components, the high-pressure gas circuit components are provided with high-pressure electromagnetic valves and high-pressure electric proportional valves, and the low-pressure gas circuit components are provided with low-pressure electromagnetic valves and low-pressure electric proportional valves. The method has the advantages that the high pressure is controlled in a two-stage mode, two high pressure values are preset, the high pressure value of the first-stage high-pressure electric proportional valve is reached firstly in use, the high pressure value of the second-stage high-pressure electric proportional valve is reached, accordingly, the set high pressure value which needs to be reached can be controlled more accurately, accurate pressure control is achieved through the low-pressure electric proportional valve, the multi-stage control method avoids inaccurate control and influences the speed and accuracy of control of follow-up air pressure, and the adjustment efficiency and the control accuracy of the air cylinder are integrally improved.
In some embodiments, the low-pressure gas circuit component is provided with 2 groups of first-level low-pressure gas circuit components and two groups of second-level low-pressure gas circuit components respectively, the cylinder is controlled by the high-pressure gas circuit component, the first-level low-pressure gas circuit components and the second-level low-pressure gas circuit components, the high-pressure gas circuit component is provided with a high-pressure electromagnetic valve and a high-pressure electric proportional valve, and the low-pressure gas circuit component is provided with a low-pressure electromagnetic valve and a low-pressure electric proportional valve. The multi-stage control method has the advantages that the low pressure is controlled in a two-stage mode, two low pressure values are preset, in use, the high pressure value passes through the high-pressure electric proportional valve, the first low pressure value is achieved through the first-stage low-pressure electric proportional valve, and the more accurate pressure control is achieved through the second-stage low-pressure electric proportional valve.
In some embodiments, the high-pressure proportional valve and the low-pressure proportional valve of the gas circuit assembly are high-precision electric proportional valves. The atmospheric pressure of control cylinder that can be more accurate.
In some embodiments, an induction check valve is arranged between the high-pressure electric proportional valve of the high-pressure air path assembly and the cylinder and connected with the high-pressure electromagnetic valve, and an induction check valve is arranged between the low-pressure electric proportional valve of the low-pressure air path assembly and the cylinder and connected with the low-pressure electromagnetic valve. Prevent self-running phenomenon after the cylinder stops.
In some embodiments, the high-pressure solenoid valve and the low-pressure solenoid valve of the air path assembly are connected with a silencer, and the cylinder is connected with a silencer. Thereby effectively reducing noise during operation.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:
fig. 1 is a schematic structural diagram of a thermal press module according to some embodiments of the present disclosure;
FIG. 2 is a front view of a thermal compression module according to some embodiments of the present application;
FIG. 3 is a top view of a thermal compression module according to some embodiments of the present application;
FIG. 4 is a schematic illustration of cylinder air pressure control according to some embodiments of the present application;
FIG. 5 is yet another schematic illustration of cylinder air pressure control according to some embodiments of the present application;
FIG. 6 is another schematic illustration of cylinder air pressure control according to some embodiments of the present application;
FIG. 7 is yet another schematic illustration of cylinder air pressure control according to some embodiments of the present application;
FIG. 8 is yet another schematic illustration of cylinder air pressure control according to some embodiments of the present application.
The reference numerals in the detailed description are as follows:
the hot pressing die set comprises a hot pressing die set 1, a pressing plate 11, a die 12 and a bottom plate 13;
a cylinder 2;
the high-pressure air channel component 3, the high-pressure electromagnetic valve 31, the high-pressure electric proportional valve 32, the primary high-pressure air channel component 33, the secondary high-pressure air channel component 34, the primary high-pressure electric proportional valve 321 and the secondary high-pressure electric proportional valve 322;
a low-pressure gas circuit component 4, a low-pressure electromagnetic valve 41, a low-pressure electric proportional valve 42, a primary low-pressure gas circuit component 43, a secondary low-pressure gas circuit component 44, a primary low-pressure electric proportional valve 421 and a secondary low-pressure electric proportional valve 422;
an electric core 5;
an induction check valve 6; a muffler 7.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, the technical terms "high voltage", "low voltage", "primary", "secondary", "one group", "another group", "one", "another", etc. are used only to distinguish different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).
In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.
In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
With the development of industries such as electric vehicles and the like, the application of power batteries is more extensive, such as electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like, and also applied to energy storage power systems such as hydraulic power, firepower, wind power, solar power stations and the like, and a plurality of fields such as military equipment, aerospace and the like. With the continuous expansion of the application field of power batteries, the requirements on the battery technology are more and more strict, and each processing procedure is closely related to the quality and the service life of the battery.
The inventors have noted that in the shaping process for preparing the lithium ion battery cell, in order to make the lithium ion battery cell straight after shaping and avoid recovery from retraction. The hot pressing and shaping process of the battery core comprises the steps of firstly placing the wound or laminated battery core on a template, setting pressure of a pressure cylinder and temperature of the template, and then shaping the battery core by the upper template and the lower template under the action of certain pressure and temperature to achieve the consistency of the thickness of the battery core, so that the elasticity of the battery core is reduced, the qualified rate of the battery core is reduced, and the consistency of the thickness of the finished battery core is ensured.
The main technological parameters of the cell hot-pressing shaping include the pressing pressure, the pressing time and the template temperature. Under proper technological parameters, air hardly exists in the thick battery cell, the diaphragm and the pole piece are tightly bonded together, and the loose battery cell can be changed into a hard block state. However, in the ceramic separator used in recent years, it is difficult to bond the separator to the pole piece in such a state due to the presence of the ceramic layer. In the process determination test, the detection items comprise the air permeability and the thickness change of the diaphragm; whether the thickness of the battery cell meets the requirement of entering the shell or not; whether the pole piece is broken or not, and the like.
In addition, the battery diaphragm is used as a core component of the battery, plays a key role in isolating the electron conduction of the positive electrode and the negative electrode and allowing the lithium ions to pass between the positive electrode and the negative electrode in a reciprocating manner, the microporous structure on the diaphragm is just an important channel for the ions to pass between the positive electrode and the negative electrode, the air permeability of the diaphragm can directly influence the performance of the battery, and the air permeability of the diaphragm refers to the amount of gas which can pass through the diaphragm under certain time pressure. If the air permeability of the diaphragm is not good, the transmission of lithium ions between the anode and the cathode is influenced, and then the charging and discharging of the lithium battery are influenced. The test process comprises the following steps: fixing the battery diaphragm, applying air pressure on one side of the diaphragm, measuring the pressure drop of the air pressure and the time used, and detecting the air permeability of the diaphragm, wherein the shorter the time used, the better the air permeability. In the hot pressing process, the diaphragm can be seriously compressed, the thickness change of the diaphragm is large, the micropores are blocked, the diaphragm can become transparent when the diaphragm is observed by naked eyes, and the condition shows that the hot pressing shaping has over limit on the action of the battery core and can influence the lithium ion transmission. If the pole piece is fragile, the cell bending part is easy to generate powder falling or even fracture in hot-press shaping, so that the electronic transmission is limited, and the internal resistance of the battery is increased. Therefore, the hot press shaping of the battery cell must also avoid this. Both of these aspects require that the smaller the hot press profiling pressure, the better, and the shorter the time, the better. On the other hand, the electric core is required to be shaped by hot-pressing shaping, the thickness of the electric core meets the process requirement, the elasticity of the electric core is reduced, and the consistency of the thickness of the finished product electric core is ensured. Therefore, the process parameters such as pressure, time and temperature need to be optimized.
In the existing equipment, the requirement on technological parameters can be met for temperature control, and the main problem lies in the control problem of the operation speed and the pressure precision of the air cylinder, so that the processing efficiency and the quality are influenced. In the prior art, one SY series electromagnetic valve is used for controlling the air pressure of the air cylinders and one electric proportional valve is used for simultaneously controlling the air pressure of two jacking air cylinders, the jacking speed is limited due to the limitation of the flow speed of the electric proportional valve, and the jacking time is about 2.5S according to the actual field use condition; in addition, the air pressure of the two air cylinders is simultaneously controlled by the electromagnetic valve and the electric proportional valve, so that deviation is easy to occur in the pressure control precision, a shaped battery cell can also generate certain deviation, the flatness of the battery is poor, the thickness of the battery cell is uneven, the charging and discharging functions and the service life are influenced, and a battery diaphragm and an electrode plate can be damaged. The applicant researches and discovers that a high-voltage electric proportional valve and a low-voltage electric proportional valve can be configured for the air cylinder in design, so that the adjusting time is shortened, and the control precision is improved. The air circuit component is at least provided with a group of high-pressure air circuit components and at least one group of low-pressure air circuit components, the high-pressure air circuit components are connected with at least one controlled air cylinder, the high-pressure air circuit components are provided with high-pressure electromagnetic valves and high-pressure electric proportional valves, and the low-pressure air circuit components are provided with low-pressure electromagnetic valves and low-pressure electric proportional valves. During control, the high-pressure electromagnetic valve of the high-pressure gas circuit component controls the high-pressure electric proportional valve to reach a set high-pressure value to be controlled, the low-pressure electromagnetic valve of the low-pressure gas circuit component controls the low-pressure electric proportional valve to reach a set low-pressure value to be controlled, the purpose of quickly controlling the air pressure of the air cylinder is achieved, accurate control of the air cylinder stroke is achieved, and the operation efficiency and accuracy of equipment are improved.
The cylinder air pressure control device disclosed by the embodiment of the application can be but is not limited to be used in a cell hot-pressing shaping process device. In the middle of can using the other equipment that possess the open needs of this application and control cylinder atmospheric pressure, like this, can promote the cylinder and reach established control pressure's numerical value, improve equipment machining efficiency, promote control accuracy, improve the processingquality of product, promote the stability and the battery life of battery performance in electric core processing, reduce the defective percentage.
The embodiment of the application provides an use cylinder air pressure control device's plastic equipment, mainly carries out the plastic to square or circular battery electricity core on lithium cell electricity core plastic.
For convenience of description, the following embodiments take a square cell hot-pressing module 1 as an example of a cylinder pressure control device according to an embodiment of the present application.
Please refer to fig. 1-3. Hot pressing module 1 be provided with clamp plate 11, clamp plate 11 below is equipped with mould 12, clamp plate 11 both sides are equipped with cylinder 2 respectively, cylinder 2 is fixed in on bottom plate 13, be equipped with 2 groups high-pressure gas circuit subassembly 3 and 2 groups low pressure gas circuit subassembly 4 on bottom plate 13 or the equipment frame, high-pressure gas circuit subassembly 3 is equipped with high-pressure solenoid valve 31 and high-pressure electric proportional valve 32, low pressure gas circuit subassembly 4 is equipped with low-pressure solenoid valve 41 and low-pressure electric proportional valve 42, a cylinder 2 is through a set of high-pressure gas circuit subassembly 3 and a set of low pressure gas circuit subassembly 4 common control, another cylinder 2 is through another group of high-pressure gas circuit subassembly 3 and another group of low pressure gas circuit subassembly 4 common control. The air passage enters the high-pressure electromagnetic valve 31 and the low-pressure electromagnetic valve 41 from the main air source, then respectively controls the air pressure of the cylinder 2 through the high-pressure electric proportional valve 32 and the low-pressure electric proportional valve 42, so that the air pressure reaches a preset value through the high-pressure electric proportional valve 32, and then the air is supplied to the low-pressure electric proportional valve 42 to reach a target value. And because the low-voltage electric proportional valve 42 is lower in subdivision value, the force value precision is higher under the cylinder 2 with the same cylinder diameter. The running speed and the precision of the cylinder 2 are reflected to the pressing plate connected with the cylinder, so that the accurate control of shaping of the battery cell 5 is realized, and the processing efficiency is improved. The working process of the square battery cell hot-pressing module 1 is approximately, a certain force is transmitted to the pressing plate 11 through the upper part of the pressing plate 11, the received pressure is offset by jacking the two side cylinders 2 until the pressing plate 11 keeps the shaping pressure of the battery cell 5 reaching the set force value, the force value keeps the set time, the force transmission mechanism on the pressing plate 11 is cancelled, and finally the two side cylinders 2 reset to complete the shaping action of the battery cell 5.
According to some embodiments of the present application, referring to fig. 1-8, fig. 1-3 are schematic diagrams of a thermal press module, and fig. 4-8 are schematic diagrams of various gas paths. The application provides a cylinder air pressure control device, including gas circuit subassembly and cylinder 2, the gas circuit subassembly is equipped with a set of high-pressure gas circuit subassembly 3 at least and a set of low pressure gas circuit subassembly 4 at least and is connected with at least one cylinder 2 of control, and high-pressure gas circuit subassembly 3 is equipped with high-pressure solenoid valve 31 and high-pressure electric proportional valve 32, and low pressure gas circuit subassembly 4 is equipped with low-pressure solenoid valve 41 and low-pressure electric proportional valve 42.
The electromagnetic valve is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The electromagnetic valve can be matched with different circuits to realize expected control, and the precision and flexibility of the control can be ensured. In the cover device, the electromagnetic valve is used for controlling the on-off of the air path of the main air source conveyed to the electric proportional valve and is matched with the electric proportional valve to achieve the accurate control of the air pressure of the air cylinder.
The electric proportional valve control belongs to continuous control and is characterized in that the output quantity changes along with the change of the input quantity, and a certain proportional relation exists between the output quantity and the input quantity. The proportional control is divided into open-loop control and closed-loop control. In the device, the electric proportional valve is used for controlling the air pressure delivered to the air cylinder, controlling the stroke and the shaping pressure of the air cylinder, and through the control of various electric proportional valves, the high-voltage electric proportional valve reaches a preset value, and then the low-voltage electric proportional valve 42 is supplemented to reach a target value. And because the subdivision value of the low-voltage electric proportional valve 42 is lower, the force value precision is higher under the cylinders with the same cylinder diameter.
The electric proportional valve can realize stepless regulation of pressure and speed, and avoids the impact phenomenon when the normally-open switch type air valve is reversed; remote control and program control can be realized; compared with intermittent control, the system is simplified, and the elements are greatly reduced; compared with a hydraulic electric proportional valve, the hydraulic electric proportional valve has the advantages of small volume, light weight, simple structure and lower cost, but the response speed is much slower than that of a hydraulic system, and the hydraulic electric proportional valve is sensitive to load change; the use power is low, the heat emission is less, and the noise is low; fire hazard can not occur, and the environment can not be polluted; is less affected by temperature changes.
According to the air path control mode of the air cylinder, air pressure adjusted through the high-pressure air path assembly 3 reaches an established value, air pressure value adjusted through the low-pressure air path assembly 4 is supplemented to reach a target value, adjustment efficiency of air cylinder pressure is improved remarkably, and accuracy is improved greatly.
According to some embodiments of the present application, referring to fig. 4, the high pressure air path assembly 3 and the low pressure air path assembly 4 together control one cylinder 2, the high pressure air path assembly 3 is provided with a high pressure solenoid valve 31 and a high pressure electric proportional valve 32, and the low pressure air path assembly 4 is provided with a low pressure solenoid valve 41 and a low pressure electric proportional valve 42. The air pressure adjusted by the high-pressure electromagnetic valve 31 through the high-pressure electric proportional valve 32 reaches a preset value, and then the air pressure adjusted by the low-pressure electromagnetic valve 41 through the low-pressure electric proportional valve 42 is supplemented to reach a target value, so that the adjustment efficiency of the air cylinder pressure is improved remarkably, and the accuracy is also improved greatly.
According to some embodiments of the present application, referring to fig. 5, the high pressure gas path assembly 3 and the low pressure gas path assembly 4 jointly control the two cylinders 2, the high pressure gas path assembly 3 is provided with a high pressure solenoid valve 31 and a high pressure electric proportional valve 32, and the low pressure gas path assembly 4 is provided with a low pressure solenoid valve 41 and a low pressure electric proportional valve 42. The control mode is that the air pressure of the two air cylinders 2 reaches a preset value through the high-pressure electric proportional valve 32 by the high-pressure electromagnetic valve 31, and then the air pressure value of the two air cylinders 2 is supplemented to reach a target value through the low-pressure electric proportional valve 42 by the low-pressure electromagnetic valve 41, so that the regulation efficiency of the pressure of the two air cylinders is improved remarkably, and the precision is also improved greatly.
According to some embodiments of the present application, referring to fig. 6, at least two cylinders 2 are provided, each cylinder 2 is provided with a set of high-pressure air path components 3 and a set of low-pressure air path components 4 for control, the high-pressure air path components 3 are provided with high-pressure electromagnetic valves 31 and high-pressure electric proportional valves 32, and the low-pressure air path components 4 are provided with low-pressure electromagnetic valves 41 and low-pressure electric proportional valves 42. This control mode is that the atmospheric pressure of cylinder 2 separately reaches the default by the high-pressure solenoid valve 31 of each group high-pressure gas circuit subassembly 3 through the independent gas circuit control of high-pressure electric proportional valve 32 earlier, make the atmospheric pressure value of cylinder 2 separately supplement through low-pressure electric proportional valve 42 by the low-pressure solenoid valve 41 of each group low-pressure gas circuit subassembly 4 again and reach the target value, each cylinder 2 sets up high-low pressure solenoid valve and high-low pressure electric proportional valve alone and controls, the pressure of each cylinder 2 is more accurate, it is showing to the regulation efficiency promotion of each cylinder 2 pressure, the precision also promotes by a wide margin. In the process, the subdivision value of the low-voltage electric proportional valve 42 is lower, the displacement is precisely improved under the air cylinders with the same cylinder diameter, the force value precision is more accurate, the required pressure value can be reached in a shorter time, the movement time of the low-voltage electric proportional valve is theoretically improved to about 1.1S, the speed of 2.2 times is improved compared with the time of 2.5S in the prior art, the efficiency is improved remarkably, and the precision is also greatly improved.
According to some embodiments of the present application, referring to fig. 6, two cylinders 2 are provided, each cylinder 2 is provided with a set of high-pressure air path assembly 3 and a set of low-pressure air path assembly 4 for control, the high-pressure air path assembly 3 is provided with a high-pressure solenoid valve 31 and a high-pressure electric proportional valve 32, and the low-pressure air path assembly 4 is provided with a low-pressure solenoid valve 41 and a low-pressure electric proportional valve 42. This control mode is that the atmospheric pressure of cylinder 2 separately reaches the default by the high pressure solenoid valve 31 of two sets of high-pressure gas circuit subassemblies 3 through the independent gas circuit control of high-pressure electric proportional valve 32 earlier, the low pressure solenoid valve 41 of two sets of low pressure gas circuit subassemblies 4 makes the atmospheric pressure value of two cylinders 2 supply through low pressure electric proportional valve 42 and reaches the target value again, two cylinders 2 set up high-low pressure solenoid valve 41 and high-low pressure electric proportional valve 42 alone and control, the pressure of two cylinders 2 is more accurate, it is showing to the regulation efficiency promotion of two cylinders 2 pressure, the precision also promotes by a wide margin. In the process, the subdivision value of the low-voltage electric proportional valve 42 is lower, the displacement is precisely improved under the air cylinders with the same cylinder diameter, the force value precision is more accurate, the required pressure value can be reached in a shorter time, the movement time of the low-voltage electric proportional valve is theoretically improved to about 1.1S, the speed of 2.2 times is improved compared with the time of 2.5S in the prior art, the efficiency is improved remarkably, and the precision is also greatly improved.
According to some embodiments of the present application, the high-pressure gas circuit component 3 is provided with multiple stages of high-pressure gas circuit components 3, and the control pressures of the high-pressure electric proportional valves of the high-pressure gas circuit components 3 at different stages are different. The high-voltage area is divided into a plurality of areas, and the high-voltage area is controlled in a segmented mode, so that a set high-voltage target value can be reached more quickly, the control of the next step is accelerated, and the overall control speed and accuracy are improved.
According to some embodiments of the present application, the low-pressure gas path assembly 4 is provided with multiple stages of low-pressure gas path assemblies 4, and the control pressures of the low-pressure electric proportional valves 42 of the low-pressure gas path assemblies 4 at different stages are different. The low-pressure area is divided into a plurality of areas, and the low-pressure area is controlled in a segmented mode, so that a set low-pressure target value can be reached more quickly, the control of the next step is accelerated, and the overall control speed and accuracy are improved.
According to some embodiments of the present application, referring to fig. 7, the high-pressure gas circuit component 3 is provided with a first-stage high-pressure gas circuit component 33 and a second-stage high-pressure gas circuit component 34, the cylinder is controlled by the first-stage high-pressure gas circuit component 33, the second-stage high-pressure gas circuit component 34 and the low-pressure gas circuit component 4, the first-stage high-pressure gas circuit component 33 is provided with a high-pressure solenoid valve 31 and a first-stage high-pressure electric proportional valve 321, the second-stage high-pressure gas circuit component 34 is provided with a high-pressure solenoid valve 31 and a second-stage high-pressure electric proportional valve 322, and the low-pressure gas circuit component 4 is provided with a low-pressure solenoid valve 41 and a low-pressure electric proportional valve 42. Two high-pressure values are preset by adopting a two-stage high-pressure control mode, and in use, the high-pressure value of the first-stage high-pressure electric proportional valve 321 is reached at first, and then the high-pressure value of the second-stage high-pressure electric proportional valve 322 is reached, so that the set high-pressure value which needs to be reached is controlled more accurately, and finally, accurate pressure control is achieved through the low-pressure electric proportional valve 42.
According to some embodiments of the present application, referring to fig. 8, the low-pressure gas circuit component 4 is provided with a first-level low-pressure gas circuit component 43 and a second-level low-pressure gas circuit component 44, the cylinder is controlled by 1 set of high-pressure gas circuit component 3, the first-level low-pressure gas circuit component 43 and the second-level low-pressure gas circuit component 44, the high-pressure gas circuit component 3 is provided with a high-pressure solenoid valve 31 and a high-pressure electric proportional valve 32, the first-level low-pressure gas circuit component 4 is provided with a low-pressure solenoid valve 41 and a first-level low-pressure electric proportional valve 421, and the second-level low-pressure gas circuit component 4 is provided with a low-pressure solenoid valve 41 and a second-level low-pressure electric proportional valve 422. The method adopts a two-stage low pressure control mode, two low pressure values are preset, in use, the high pressure value firstly passes through the high pressure electric proportional valve 32, then the first low pressure value is reached by the first-stage low pressure electric proportional valve 421, and finally more accurate pressure control is realized through the second-stage low pressure electric proportional valve 422.
According to some embodiments of the present application, referring to fig. 8, an inducing check valve 6 is disposed between the high-pressure electric proportional valve 32 of the high-pressure air path assembly 3 and the cylinder 2 to connect with the high-pressure solenoid valve 31, and an inducing check valve 6 is disposed between the low-pressure electric proportional valve 42 of the low-pressure air path assembly 4 and the cylinder 2 to connect with the low-pressure solenoid valve 41. The self-walking phenomenon after the cylinder stops is prevented.
According to some embodiments of the present application, referring to fig. 8, the muffler 7 is connected to the high pressure solenoid valve 31 and the low pressure solenoid valve 41 of the air path assembly, and the muffler 7 is connected to the cylinder 2. The noise of the high-pressure electromagnetic valve 31, the low-pressure electromagnetic valve 41 and the cylinder 2 during air discharge can be reduced, and the noise of the working environment can be reduced.
According to some embodiments of the present application, referring to fig. 1 to 3 and 6, the present application provides a cylinder air pressure control device, which includes an air passage component and a cylinder 2 (in this embodiment, a CDQ2a180-100 DCMZ-D-M9 BL SMC standard thin cylinder is used), the air passage component is provided with a high-pressure air passage component 3 and a low-pressure air passage component 4, the high-pressure air passage component 3 and the low-pressure air passage component 4 are respectively provided with 2 sets of air pressures for controlling the two cylinders, one set of the high-pressure air passage component 3 is connected with one cylinder of the low-pressure air passage component 4, the other set of the high-pressure air passage component 3 and the low-pressure air passage component 4 is used for controlling the air pressure of the other cylinder, the high-pressure air passage component 3 is provided with a high-pressure electromagnetic valve 31 (in this embodiment, a five-way electromagnetic valve SY9420-5LZD-03 is used) and a high-pressure electric proportional valve 32 (in this embodiment, a two-position electric proportional valve ITV 305v 0-313BL is used), the low-pressure air passage component 4 is provided with a low-pressure electromagnetic valve 41 (in this embodiment, a five-way electromagnetic valve SY9420-5LZD-03 is used) and an electric proportional valve 42 (in this embodiment, an electric proportional valve ITV3050-313 is used); in operation, the high-pressure electromagnetic valve 31 controls the high-pressure electric proportional valve 32 to reach a set high-pressure value to be controlled, and the low-pressure electromagnetic valve 41 controls the low-pressure electric proportional valve 42 to reach a set low-pressure value to be controlled, so that the purpose of quickly controlling the air pressure of the air cylinder 2 is realized, the accurate control of the stroke of the air cylinder 2 is realized, and the operation efficiency and the accuracy of equipment are improved. In the process, the subdivision value of the low-voltage electric proportional valve 42 is lower, the displacement is precisely improved under the air cylinders with the same cylinder diameter, the force value precision is more accurate, the required pressure value can be reached in a shorter time, the movement time of the low-voltage electric proportional valve is theoretically improved to about 1.1S, the speed of 2.2 times is improved compared with the time of 2.5S in the prior art, the efficiency is improved remarkably, and the precision is also greatly improved.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.
Claims (12)
1. The utility model provides a cylinder air pressure control device, includes gas circuit subassembly and cylinder, its characterized in that, the gas circuit subassembly is equipped with a set of high-pressure gas circuit subassembly and at least a set of low pressure gas circuit subassembly at least, and the gas circuit subassembly is connected with at least one cylinder of control, the high-pressure gas circuit subassembly is equipped with high-pressure solenoid valve and high-pressure electric proportional valve, the low pressure gas circuit subassembly is equipped with low-pressure solenoid valve and low-pressure electric proportional valve.
2. The cylinder air pressure control device according to claim 1, wherein the high pressure air path assembly and the low pressure air path assembly control the air pressure of one of the cylinders in common.
3. The cylinder air pressure control device according to claim 1 or 2, wherein the high pressure air path assembly and the low pressure air path assembly control the air pressure of both of the cylinders together.
4. The cylinder air pressure control device according to claim 1, wherein each cylinder is provided with a set of the high pressure air path assembly and a set of the low pressure air path assembly control.
5. The cylinder air pressure control device according to claim 1 or 4, wherein there are 2 sets of said high pressure air passage assembly and said low pressure air passage assembly for controlling the air pressures of the two cylinders, respectively.
6. The cylinder air pressure control device according to claim 1, 2 or 3, wherein the high-pressure air path assembly is provided with a plurality of stages of high-pressure air path assemblies, and the control pressure of the high-pressure electric proportional valve of each stage of high-pressure air path assembly is different.
7. The cylinder air pressure control device according to claim 1, 2 or 3, wherein the low-pressure air passage assembly is provided with a plurality of stages of low-pressure air passage assemblies, and the control pressure of the low-pressure electric proportional valve of each stage of low-pressure air passage assembly is different.
8. The cylinder air pressure control device according to claim 6, wherein the high-pressure air path assembly is provided with a set of primary high-pressure air path assembly and two sets of secondary high-pressure air path assemblies, respectively, and the air pressure of the cylinder is controlled by the primary high-pressure air path assembly, the secondary high-pressure air path assembly and the low-pressure air path assembly.
9. The cylinder air pressure control device according to claim 7, wherein the low pressure air path assembly is provided with two sets of a primary low pressure air path assembly and two sets of a secondary low pressure air path assembly, respectively, and the air pressure of the cylinder is controlled by the high pressure air path assembly, the primary low pressure air path assembly, and the secondary low pressure air path assembly.
10. The cylinder air pressure control device according to any one of claims 1 to 7, wherein the high-voltage electric proportional valve and the low-voltage electric proportional valve of the air path assembly are high-precision electric proportional valves.
11. The cylinder air pressure control device according to any one of claims 1 to 7, wherein an inducing check valve is provided between the high-pressure electric proportional valve and the cylinder, the inducing check valve is connected to the high-pressure solenoid valve, and an inducing check valve is provided between the low-pressure electric proportional valve and the cylinder, the inducing check valve is connected to the low-pressure solenoid valve.
12. The cylinder air pressure control apparatus according to any one of claims 1 to 7, wherein a muffler is connected to the high pressure solenoid valve and the low pressure solenoid valve, and a muffler is connected to the cylinder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111486611.8A CN115823044A (en) | 2021-12-07 | 2021-12-07 | Air cylinder air pressure control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111486611.8A CN115823044A (en) | 2021-12-07 | 2021-12-07 | Air cylinder air pressure control device |
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| CN115823044A true CN115823044A (en) | 2023-03-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116749572A (en) * | 2023-05-31 | 2023-09-15 | 厦门合南道智能科技有限公司 | Cell pressurizing mechanism and control method |
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- 2021-12-07 CN CN202111486611.8A patent/CN115823044A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116749572A (en) * | 2023-05-31 | 2023-09-15 | 厦门合南道智能科技有限公司 | Cell pressurizing mechanism and control method |
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