CN113113561B - Constant-pressure control method and constant-pressure adjusting device - Google Patents
Constant-pressure control method and constant-pressure adjusting device Download PDFInfo
- Publication number
- CN113113561B CN113113561B CN202110467515.2A CN202110467515A CN113113561B CN 113113561 B CN113113561 B CN 113113561B CN 202110467515 A CN202110467515 A CN 202110467515A CN 113113561 B CN113113561 B CN 113113561B
- Authority
- CN
- China
- Prior art keywords
- pressure
- roller
- spring
- self
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims abstract description 88
- 230000008859 change Effects 0.000 claims abstract description 34
- 230000009123 feedback regulation Effects 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 8
- 230000003044 adaptive effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000011149 active material Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- KJLLKLRVCJAFRY-UHFFFAOYSA-N mebutizide Chemical compound ClC1=C(S(N)(=O)=O)C=C2S(=O)(=O)NC(C(C)C(C)CC)NC2=C1 KJLLKLRVCJAFRY-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/18—Automatic gauge control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/06—Electrodes for primary cells
- H01M4/08—Processes of manufacture
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a constant pressure control method, which comprises elastic self-adaptive adjustment and closed-loop feedback adjustment; in the elastic self-adaptive adjustment, the self-adjusting module senses the thickness change of a product and compensates or absorbs the rolling pressure change on the surface of the product to realize the self-adaptive telescopic adjustment; in closed loop feedback regulation, the sensor module acquires real-time rolling pressure, and the controller controls the pressure application module to adjust the rolling pressure to a set pressure value and recover pressure balance control. The invention can realize high-precision control and stable rolling pressure in the rolling process through the combined action of elastic self-adaptive adjustment and closed-loop feedback adjustment.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of battery pole piece processing, and particularly relates to a constant voltage control method and a constant voltage adjusting device.
[ background of the invention ]
After the battery pole piece is coated with the active material, the pole piece is usually rolled to improve the density of the solid active material. In the traditional roll squeezer, a pair of steel rolls is driven by a hydraulic or pneumatic system to apply rolling pressure to a pole piece, and the control of the rolling pressure is mainly realized by controlling the pressure of oil pressure in the hydraulic system.
However, the momentum of the hydraulic system is large, the oil/air pressure control precision is not high, the piston cylinder has motion damping, and the battery pole piece is a solid sheet, so that when the battery pole piece is rolled in the motion process, the high-precision rolling pressure control is difficult to carry out. Furthermore, when the thickness of the battery pole piece changes in a micron order, the traditional roll gap and rolling pressure cannot be adjusted in time according to actual conditions, the steel roll is in rigid contact with the solid active material on the pole piece, no buffer mechanism exists, the rolling pressure actually applied to the pole piece can generate sudden change, and the rolling pressure control is extremely unstable.
In the traditional scheme of servo motor motion and pressure sensor feedback, because the motion precision and resolution of the servo motor are limited, the motion of the servo motor is microscopically necessarily the position movement of a unit instead of a continuous position, so when the constant pressure control is carried out on the solid matter, the output pressure change of the servo motor is also necessarily the step change of a unit type, and the step change jump of the pressure can certainly cause that the high-precision pressure control cannot be carried out.
[ summary of the invention ]
In order to solve the existing problems in the background art, the invention provides a constant pressure control method of a rolling device, which realizes high-precision control and stability of rolling pressure through the combined action of self-adaptive adjustment and feedback control adjustment of a spring.
The invention adopts the following technical scheme:
a constant pressure control method comprises elastic self-adaptive adjustment and closed-loop feedback adjustment;
in the elastic self-adaptive adjustment, the self-adjusting module senses the thickness change of a product and compensates or absorbs the rolling pressure change on the surface of the product to realize the self-adaptive telescopic adjustment;
in closed loop feedback regulation, the sensor module acquires real-time rolling pressure, and the controller controls the pressure application module to adjust the rolling pressure to a set pressure value and recover pressure balance control.
Further, a constant voltage regulator using a constant voltage control method, the constant voltage regulator comprising:
a frame;
the device comprises a first roller, a second roller and a motor, wherein the first roller and the second roller are arranged in parallel and aligned and are driven by a motor connecting coupler;
the self-adjusting module is used for performing self-adaptive telescopic adjustment when the thickness of the product changes, and preliminarily maintaining the rolling pressure balance on the surface of the product;
the sensor module is used for acquiring the actual rolling pressure of the surface of the product;
the controller is connected with the sensor module and the pressure application module, receives the actual rolling pressure acquired by the sensor module, compares the actual rolling pressure with the set pressure, and drives and adjusts the gap distance between the first roller and the second roller by the pressure application module to maintain pressure balance.
Further, the constant pressure adjusting device also comprises a width sensor module used for monitoring the change condition of the roll gap, the width sensor module is connected with the controller, the controller records the change of the roll gap width, the roll pressure and the product thickness in real time and generates a change curve along with the time and the production length.
Furthermore, the two ends of the first roller and the second roller are rotatably installed between the bearing seats on the rack through bearings, and the first roller and the second roller are aligned in parallel on the same vertical plane.
Furthermore, the self-adjusting module comprises a spring, the spring is used for sensing the change of rolling pressure, when the thickness of a product changes and the roll gap changes, the spring can stretch and contract to compensate or absorb the rolling pressure so as to perform self-adaptive adjustment.
Furthermore, the pressure applying module is a push rod motor, the push rod motor is installed at the top ends of bearing seats at two ends of the second roller in a driving mode, the controller receives actual rolling pressure of the sensor module and compares the actual rolling pressure with set pressure in the controller, and the controller controls the pressure applying module to drive the second roller to move and adjust the actual rolling pressure to be equal to the set pressure.
Further, the spring is one of a metal coil spring, a metal plate spring or a gas spring, and has an elastic modulus K1Less than elastic modulus K of battery pole piece2Specifically, k is not less than 0.11/k2≤0.001。
Further, in the elastic self-adaptive adjustment, when the thickness of the product is increased, the roll gap is increased, and the spring is correspondingly contracted to store energy; when the thickness of the product is reduced, the roll gap is reduced, and the corresponding extension and release energy of the spring can be adjusted in a self-adaptive mode.
Further, in the closed-loop feedback regulation, the sensor module transmits actual rolling pressure to the controller to be compared with set pressure, specifically, when the actual rolling pressure is greater than the set pressure, the pressure applying module pushes up to drive the second roller to move upwards, and meanwhile, the spring extends until the actual rolling pressure is equal to the set pressure; and when the real-time pressure is smaller than the set pressure, the pressing module push rod pushes down to drive the second roller to move downwards, and meanwhile, the spring is compressed until the actual rolling pressure is equal to the set pressure, so that closed-loop feedback regulation is completed.
The invention has the following beneficial effects:
the constant pressure control method provided by the invention can accurately control the rolling pressure according to the change of the product at any time by self-adaptive adjustment through the self-adjusting module and combining with the closed-loop feedback adjustment control of the controller, so that the rolling pressure is kept constant and accurate processing is carried out.
The constant pressure adjusting device comprises a spring and a pressure sensor which are arranged at the lower part of a first roller or between the first roller and a second roller, a pressure applying module is connected at the end part of the first roller or the second roller, when the thickness of a battery pole piece changes, a roller gap between the first roller and the second roller changes along with the thickness of a product, the spring stretches and contracts to adjust the self compression amount and compensate or reduce the pressure change borne by the product in time, meanwhile, the pressure sensor transmits the real-time pressure measured after self-adaptive adjustment to a controller to be compared with the set pressure, and the pressure applying module is controlled to adjust the pressure output of the pressure applying module until the actual rolling pressure detected by the pressure sensor is equal to the original set pressure, and meanwhile, the spring returns to the original state The pressure sensor and the controller form a series system, roll-in pressure control is carried out on the process of rolling the battery pole piece in real time, adjustment processing is carried out, high-precision roll-in pressure control is realized, the roll-in thickness of the battery pole piece is controlled in high precision, particularly the battery pole piece with the thickness change can be adjusted at any time according to the thickness change, the roll-in pressure of the battery pole piece is kept constant, the high-quality processing level of the battery pole piece is guaranteed, and the effect uniformity is guaranteed.
[ description of the drawings ]
FIG. 1 is a schematic view showing the construction of a constant pressure regulating apparatus according to the present invention;
FIG. 2 is a block flow diagram of a constant pressure control method of the present invention;
FIG. 3 is a schematic view showing an installation structure of a constant pressure adjusting apparatus according to an embodiment;
FIG. 4 is a schematic view showing another installation structure of the constant voltage device according to the second embodiment;
FIG. 5 is a schematic view showing another installation structure of the constant voltage device according to the third embodiment;
FIG. 6 is a schematic view showing another installation structure of the constant voltage device according to the fourth embodiment;
FIG. 7 is a schematic view showing another installation structure of the constant voltage device according to the fifth embodiment;
FIG. 8 is a schematic view showing another installation structure of the constant voltage device according to the sixth embodiment;
fig. 9 is a schematic view of another configuration of the constant pressure adjusting apparatus.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.
Referring to fig. 2, the constant voltage control method of the present invention includes elastic adaptive adjustment and closed loop feedback adjustment;
the first embodiment is as follows: specifically, in the elastic adaptive adjustment, the self-adjusting module senses the thickness change of the product 1, and compensates or absorbs the rolling pressure change on the surface of the product 1 to realize the adaptive telescopic adjustment.
In the closed-loop feedback regulation, the sensor module 2 acquires real-time rolling pressure, and the controller controls the pressure application module 12 to adjust the rolling pressure to a set pressure value and restore pressure balance control.
In the present embodiment, the present invention relates to a constant voltage regulating device for controlling and regulating by using the constant voltage control method, and specifically, as shown in fig. 1, a constant voltage regulating device is provided, and fig. 9 is a further completed constant voltage regulating device, and referring to fig. 1, the constant voltage regulating device includes:
the frame 3, as the supporting framework of the device, is formed by welding a plurality of square pipes to form a bracket with the structure shown in figure 1.
The device comprises a first roller 4, a second roller 5 and a motor 6, wherein the first roller 4 and the second roller 5 are arranged in parallel in an alignment manner and are driven by a coupling 7 connected with the motor 6, the motor 6 is slidably mounted on a rack 3, a product 1 penetrates through a roller gap formed between the first roller 4 and the second roller 5, two ends of the first roller 4 and the second roller 5 are rotatably mounted between bearing blocks 9 on the rack 3 through bearings 8, the working directions of the first roller 4 and the second roller 5 are opposite, and when an electrode pole piece penetrates through the roller gap, the electrode pole piece is subjected to rolling pressure, so that the first roller 4 and the second roller 5 are always aligned in parallel, and the included angle between the plane of the first roller 4 and the horizontal plane of the second roller 5 is selected according to requirements, for example, the plane of the horizontal planes of the first roller 4 and the second roller 5 can be selected according to requirements, The vertical plane or other planes are within the scope of the present invention, in this embodiment, referring to fig. 1, one of the installation position sequences is shown, and it can be specifically seen that the central axes of the first roll 4 and the second roll 5 are aligned in parallel on the same vertical plane, and it should be noted that other parallel alignments are within the scope of the installation sequence.
The constant-pressure adjusting device also comprises a self-adjusting module and a sensor module 2, wherein the self-adjusting module is used for performing self-adaptive telescopic adjustment when the thickness of the product 1 is changed, and preliminarily maintaining the surface rolling pressure balance of the product 1; specifically, the self-adjusting module includes a spring 10, and the connection mode sequence between the spring 10 and the sensor module 2 is multiple, as shown in fig. 3, one end of the spring 10 is fixedly connected to the frame 3, the other end of the spring is connected to the sensor module 2, the sensor module 2 is correspondingly abutted to the lower portion of the bearing seat 9 at the two ends of the first roller 4, and the sensor module 2 obtains the actual rolling pressure on the surface of the product 1, preferably, the sensor module 2 is a pressure sensor, so that when the thickness of the product 1 changes, the roller gap changes, and the spring 10 performs telescopic roller pressure compensation or absorption to perform self-adaptive adjustment.
It should be noted that the constant pressure adjusting device further comprises a width sensor module (not shown in the figure) for monitoring the change condition of the roll gap, wherein the width sensor module is connected with the controller, and the controller records the change of the roll gap width, the roll pressure and the product thickness in real time and generates a change curve along with time and the production length; in detail, the width sensor module is preferably a distance sensor, which can be installed on the chock 9 to indirectly feed back the size of the roll gap by monitoring the change in the distance between the first roll 4 and the second roll 5. Furthermore, the bearing blocks at the two ends of the roller can be provided with sensors. The width of the roll gap can be qualitatively reflected by adding a light source and a light quantity detection sensor on the left side and the right side of the roll gap respectively and detecting the light transmission quantity of the roll gap. The width of the roll gap can also be reflected by respectively adding a linear laser light source and a laser detection sensor at the left side and the right side of the roll gap and detecting the length of linear laser penetrating through the roll gap.
The controller records the real-time monitoring conditions of the roll gap width, the roll pressure and the product thickness, generates a variation curve which changes along with time and production length, is convenient for counting and summarizing relevant data, analyzes and searches problems and improves the product quality.
In addition, the constant pressure adjusting device further comprises a controller (not shown in the figure) and a pressure applying module 11, wherein the controller is connected with the sensor module 2 and the pressure applying module 11, the controller receives the actual rolling pressure obtained by the sensor module 2, the actual rolling pressure is compared with the set pressure, and the pressure applying module 11 drives and adjusts the gap distance between the first roller 4 and the second roller 5 to maintain pressure balance; in order to avoid oscillation and better constant-pressure rolling effect, a thickness measuring sensor can be added in the device before a product enters a roller, detection information is fed back to the controller and the pressure applying module 11, a certain amount of pressure application or pressure release is controlled in advance, and feed-forward control is realized.
Specifically, the pressure application module 11 is a push rod motor, as shown in fig. 1, the push rod motor 6 is installed at the top end of a bearing seat 9 at two ends of the second roller 5 in a driving manner, the controller receives the actual rolling pressure of the sensor module 2, and compares the actual rolling pressure with the set pressure in the controller, the controller controls the pressure application module 11 to drive the second roller 5 to move, the actual rolling pressure is adjusted to be equal to the set pressure, and after the adjustment, the expansion amount of the spring 10 is also restored to the standard length. It should be noted that the spring 10 is one of a metal coil spring, a metal plate spring or a gas spring, preferably a gas spring, and further preferably a nitrogen spring, the elastic modulus K1 of the spring 10 is smaller than the elastic modulus K2 of the battery pole piece, specifically, 0.1 ≤ K1/K2 ≤ 0.001, and the elastic modulus of the spring 10 is relatively small, which is beneficial to enlarging the operation stroke of the pressing module 11, so as to improve the control accuracy of the rolling pressure.
For the method of constant pressure control, referring to fig. 2, in detail, in the elastic adaptive adjustment, when the thickness of the electrode plate increases, the roll gap increases, and the spring 10 contracts correspondingly to absorb part of the increased energy; when the thickness of the electrode pole piece is reduced, the roll gap is reduced, the corresponding extension energy of the spring 10 is released to compensate the reduced rolling energy, the self-adaptive adjustment is completed, after the initial adjustment of the elastic self-adaptive adjustment, the change of the rolling pressure cannot be completely eliminated, the closed-loop feedback adjustment needs to be further carried out, the sensor module 2 transmits the actual rolling pressure to the controller to be compared with the set pressure, specifically, when the actual rolling pressure is greater than the set pressure, the pressure applying module 11 pushes the second roller 5 upwards, and meanwhile, the spring 10 extends until the actual rolling pressure is equal to the set pressure; when the real-time pressure is smaller than the set pressure, the push rod of the pressure applying module 11 pushes down to drive the second roller 5 to move downwards, and meanwhile, the spring 10 compresses until the actual rolling pressure is equal to the set pressure, so that closed-loop feedback regulation is completed.
More importantly, the relatively small modulus of the spring 10 enlarges the movement stroke of the pressing module 11 in the stroke range of the elastic deformation of the spring 10, thereby effectively improving the control precision of the rolling pressure.
In this embodiment, it is necessary to ensure that the working environment is a vacuum or dry environment with a dew point temperature below minus ten degrees, or to place the device in a hermetic enclosure that can be ventilated; the roller can also be designed to have the function of temperature control according to the requirement, so that the constant-pressure, pressure and temperature rolling control is realized; in addition, other corresponding controllers such as a deviation correction sensor, a temperature sensor, an air pressure sensor, a moisture sensor, a thickness measuring sensor, a roll gap detection displacement sensor or a vision sensor can be added according to needs, so that more control requirements are met, and the production quality of the product 1 is ensured.
Finally, the pressure application module 11, the self-adjusting module, the first roller 4, the second roller 5, the pressure sensor and the controller form a series system, rolling pressure control and adjustment processing are carried out on the process of rolling the battery pole piece in real time, high-precision rolling pressure control is realized, so that the rolling pressure of the battery pole piece in production and manufacturing is controlled at high precision, particularly the battery pole piece with variable thickness can be adjusted at any time according to the thickness change, the rolling pressure of the battery pole piece is kept constant, the high-quality processing level of the battery pole piece is ensured, and uniform effect is ensured.
In practical implementation, the elastic modulus k of the spring 10 is selected and the movement accuracy a of the pressing module 11 is selected to have a direct influence on the accuracy b of the roller pressure. Specifically, the smaller the k value is, the smaller the b value is, that is, the higher the accuracy of the roller pressure is; the smaller the value of a, the smaller the value of b, i.e., the higher the accuracy of the rolling pressure. More specifically, there is a relationship b ═ a × k.
In practical implementation, the selection of the elastic modulus k of the spring 10 and the maximum elastic deformation x of the spring have a direct influence on the maximum roll pressure T of the system. Specific T1 is k × x.
Example two: referring to fig. 4, the present embodiment is different from the first embodiment in different installation positions of the sensor module 2, the spring 10 and the pressing device, specifically, the sensor module 2 is installed at the bottom of the frame 3, and the spring 10 is disposed between the sensor module 2 and the first roll 4.
Example three: referring to fig. 5, the sensor module 2 is installed between the first roll 4 and the frame 3, and the spring 10 is disposed between the pressing module 11 and the top of the second roll 5.
Example four: referring to fig. 6, the spring 10 is disposed at the bottom of the pressure module 11, and the sensor module 2 is disposed between the spring 10 and the top of the second roll 5.
Example five: referring to fig. 7, a spring 10 is provided between the bottom of the first roll 1 and the frame 3, and a sensor module 2 is provided between the second roll 5 and the pressing module 11.
Example six: referring to fig. 8, the spring 10 is disposed on top of the second roll 5 and the sensor module 2 is disposed between the spring 10 and the bottom of the pressure application module 11.
The invention has the advantages that:
the constant pressure control method provided by the invention can accurately control the rolling pressure according to the change of the product at any time by self-adaptive adjustment through the self-adjusting module and combining with the closed-loop feedback adjustment control of the controller, so that the rolling pressure is kept constant and accurate processing is carried out.
The constant pressure adjusting device comprises a spring and a pressure sensor which are arranged at the lower part of a first roller or between the first roller and a second roller, a pressure applying module is connected at the end part of the first roller or the second roller, when the thickness of a battery pole piece changes, a roller gap between the first roller and the second roller changes along with the thickness of a product, the spring stretches and contracts to adjust the self compression amount and compensate or reduce the pressure change borne by the product in time, meanwhile, the pressure sensor transmits the real-time pressure measured after self-adaptive adjustment to a controller to be compared with the set pressure, and the pressure applying module is controlled to adjust the pressure output of the pressure applying module until the actual rolling pressure detected by the pressure sensor is equal to the original set pressure, and meanwhile, the spring returns to the original state The pressure sensor and the controller form a series system, roll-in pressure control is carried out on the process of rolling the battery pole piece in real time, adjustment processing is carried out, high-precision roll-in pressure control is realized, the roll-in thickness of the battery pole piece is controlled in high precision, particularly the battery pole piece with the thickness change can be adjusted at any time according to the thickness change, the roll-in pressure of the battery pole piece is kept constant, the high-quality processing level of the battery pole piece is guaranteed, and the effect uniformity is guaranteed.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (9)
1. A constant pressure control method is characterized in that the constant pressure control method comprises elastic self-adaptive regulation and closed-loop feedback regulation;
in the elastic self-adaptive adjustment, the self-adjusting module senses the change of the thickness of a product, and the rolling pressure change on the surface of the product is compensated or absorbed to realize the self-adaptive telescopic adjustment, and specifically comprises the following steps: the self-adjusting module comprises a spring, in the elastic self-adaptive adjustment, when the thickness of the electrode pole piece is increased, the roll gap is increased, and the spring correspondingly contracts to absorb part of increased energy; when the thickness of the electrode pole piece is reduced, the roll gap is reduced, the spring correspondingly extends to release energy to make up for the reduced rolling energy, and self-adaptive adjustment is completed;
in the closed loop feedback regulation, the sensor module acquires real-time rolling pressure, and the controller controls the pressure application module to adjust the rolling pressure to a set pressure value, and the pressure balance control is recovered, specifically: after the initial adjustment of the elastic self-adaptive adjustment, the change of the rolling pressure cannot be completely eliminated, closed-loop feedback adjustment needs to be further carried out, the sensor module transmits the actual rolling pressure to the controller to be compared with the set pressure, when the actual rolling pressure is greater than the set pressure, the pressure applying module pushes up to drive the second roller to move upwards, and meanwhile, the spring extends until the actual rolling pressure is equal to the set pressure; and when the real-time rolling pressure is smaller than the set pressure, the pressing module push rod pushes down to drive the second roller to move downwards, and meanwhile, the spring is compressed until the actual rolling pressure is equal to the set pressure, so that closed-loop feedback regulation is completed.
2. A constant voltage regulator apparatus for applying the constant voltage control method according to claim 1, wherein the constant voltage regulator apparatus comprises:
a frame;
the device comprises a first roller, a second roller and a motor, wherein the first roller and the second roller are arranged in parallel and aligned and are driven by a motor connecting coupler;
the self-adjusting module is used for performing self-adaptive telescopic adjustment when the thickness of the product changes, and preliminarily maintaining the rolling pressure balance on the surface of the product;
the sensor module is used for acquiring the actual rolling pressure of the surface of the product;
the controller is connected with the sensor module and the pressure application module, receives the actual rolling pressure acquired by the sensor module, compares the actual rolling pressure with the set pressure, and drives and adjusts the gap distance between the first roller and the second roller by the pressure application module to maintain pressure balance.
3. The constant pressure regulating apparatus as claimed in claim 2, wherein: the width sensor module is connected with the controller, the controller records the width change of the roll gap, the roll pressure and the product thickness in real time, and a change curve along with time and the production length is generated.
4. The constant pressure regulating apparatus as claimed in claim 2, wherein: the two ends of the first roller and the second roller are rotatably installed between the bearing seats on the rack through bearings, and the first roller and the second roller are aligned in parallel on the same vertical surface.
5. The constant pressure regulating apparatus as claimed in claim 2, wherein: the self-adjusting module comprises a spring, the spring is used for sensing the change of rolling pressure, when the thickness of a product changes, the roll gap changes, and the spring can stretch and contract to compensate or absorb the rolling pressure to perform self-adaptive adjustment.
6. The constant pressure regulating device according to any one of claims 2 to 5, wherein: the pressure applying module is a push rod motor, the push rod motor is installed on the top ends of bearing seats at two ends of the second roller in a driving mode, the controller receives actual rolling pressure of the sensor module and compares the actual rolling pressure with set pressure in the controller, and the controller controls the pressure applying module to drive the second roller to move and adjust the actual rolling pressure to be equal to the set pressure.
7. The constant pressure regulating device as claimed in claim 5, wherein: the spring is goldBelongs to one of a spiral spring, a metal plate spring or a gas spring, and has an elastic modulus K1Less than elastic modulus K of battery pole piece2Specifically, 0.1. ltoreq. K1/ K2≤0.001。
8. The constant pressure regulating device as claimed in claim 5, wherein: in the elastic self-adaptive adjustment, when the thickness of the product is increased, the roll gap is increased, and the spring is correspondingly contracted to store energy; when the thickness of the product is reduced, the roll gap is reduced, and the corresponding extension and release energy of the spring can be adjusted in a self-adaptive mode.
9. The constant pressure regulating device as claimed in claim 5, wherein: in the closed-loop feedback regulation, the sensor module transmits actual rolling pressure to the controller to be compared with set pressure, specifically, when the actual rolling pressure is greater than the set pressure, the pressure applying module pushes up to drive the second roller to move upwards, and meanwhile, the spring extends until the actual rolling pressure is equal to the set pressure; and when the real-time rolling pressure is smaller than the set pressure, the pressing module push rod pushes down to drive the second roller to move downwards, and meanwhile, the spring is compressed until the actual rolling pressure is equal to the set pressure, so that closed-loop feedback regulation is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110467515.2A CN113113561B (en) | 2021-04-28 | 2021-04-28 | Constant-pressure control method and constant-pressure adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110467515.2A CN113113561B (en) | 2021-04-28 | 2021-04-28 | Constant-pressure control method and constant-pressure adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113113561A CN113113561A (en) | 2021-07-13 |
| CN113113561B true CN113113561B (en) | 2022-04-15 |
Family
ID=76720474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110467515.2A Active CN113113561B (en) | 2021-04-28 | 2021-04-28 | Constant-pressure control method and constant-pressure adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113113561B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4224544A1 (en) * | 2021-09-28 | 2023-08-09 | Contemporary Amperex Technology Co., Limited | Pressure control method for cold press, and electronic device |
| CN114160697B (en) * | 2021-11-24 | 2023-09-19 | 厦门华普胜钣金制造有限公司 | Stacking table for plate machining |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6188006A (en) * | 1984-10-05 | 1986-05-06 | Daikin Ind Ltd | Pressure controlling circuit |
| EP1025931A2 (en) * | 1999-02-05 | 2000-08-09 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Twin roll strip casting apparatus |
| CN106160356A (en) * | 2015-03-27 | 2016-11-23 | 上海梅山钢铁股份有限公司 | A kind of generator carbon brush on-line automatic constant voltage regulation and blow device |
| CN107234817A (en) * | 2017-05-19 | 2017-10-10 | 北京航空航天大学 | It is a kind of can accurate piddler compaction apparatus controllable in real time |
| CN108340595A (en) * | 2018-01-31 | 2018-07-31 | 北京航空航天大学 | A kind of multifunctional carbon fiber lay system for compacting |
| CN111162698A (en) * | 2020-03-09 | 2020-05-15 | 山东大学 | Constant-voltage bracket PID brushless direct current motor fuzzy control system and method for AGV |
| CN112593058A (en) * | 2020-11-27 | 2021-04-02 | 青岛理工大学 | Shaft part surface strengthening device capable of realizing constant pressure self-balance and machine tool |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2597697Y (en) * | 2003-01-10 | 2004-01-07 | 贵州力源液压股份有限公司 | Hydraulic plunger variable motor regulating controller |
| CN204939255U (en) * | 2015-06-05 | 2016-01-06 | 中国建材国际工程集团有限公司 | The pressure automatic adjusting device of thin glass pressing machine |
| CN208127310U (en) * | 2018-04-10 | 2018-11-20 | 宁德时代新能源科技股份有限公司 | Pole piece mends lithium device |
-
2021
- 2021-04-28 CN CN202110467515.2A patent/CN113113561B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6188006A (en) * | 1984-10-05 | 1986-05-06 | Daikin Ind Ltd | Pressure controlling circuit |
| EP1025931A2 (en) * | 1999-02-05 | 2000-08-09 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Twin roll strip casting apparatus |
| CN106160356A (en) * | 2015-03-27 | 2016-11-23 | 上海梅山钢铁股份有限公司 | A kind of generator carbon brush on-line automatic constant voltage regulation and blow device |
| CN107234817A (en) * | 2017-05-19 | 2017-10-10 | 北京航空航天大学 | It is a kind of can accurate piddler compaction apparatus controllable in real time |
| CN108340595A (en) * | 2018-01-31 | 2018-07-31 | 北京航空航天大学 | A kind of multifunctional carbon fiber lay system for compacting |
| CN111162698A (en) * | 2020-03-09 | 2020-05-15 | 山东大学 | Constant-voltage bracket PID brushless direct current motor fuzzy control system and method for AGV |
| CN112593058A (en) * | 2020-11-27 | 2021-04-02 | 青岛理工大学 | Shaft part surface strengthening device capable of realizing constant pressure self-balance and machine tool |
Non-Patent Citations (4)
| Title |
|---|
| 基于压下力控制模型的带钢平整分卷机组液压控制系统自动化改造;杨莉华;《机电工程》;20151130(第11期);全文 * |
| 铝热轧机板坯的厚度反馈式液压自动控制;孙培明等;《轻合金加工技术》;20130820(第08期);全文 * |
| 铝箔轧机电液压力控制系统的动态分析;赵映秋等;《昆明理工大学学报(理工版)》;19920430(第02期);全文 * |
| 高精度液压微调控制系统;程建中等;《液压与气动》;19910415(第02期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113113561A (en) | 2021-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113113561B (en) | Constant-pressure control method and constant-pressure adjusting device | |
| CN104128396B (en) | Workpiece straightener and aligning method thereof | |
| CN101254509B (en) | Hydraulic servo battery pole piece rolling mill | |
| CN103128987B (en) | Rolling equipment | |
| CN103949482B (en) | A kind of planisher roller balance control method | |
| CN107138537B (en) | It is a kind of using electronic and hydraulic pressing rolled aluminum sheet mill method for controlling thickness | |
| CN101992220B (en) | Method for controlling rigidity of mill housing | |
| JPS63194806A (en) | Depressing device for universal stand and method of operating said depressing device | |
| CN109821909B (en) | Method for controlling thickness deviation of two sides of wide and thick plate | |
| CN105032947B (en) | Electric and hydraulic combined pressing type rapid positioning method for rolling mill | |
| CN201244592Y (en) | Hydraulic servo-battery pole piece rolling mill | |
| CN104551838A (en) | Combined spring deformation compensating device | |
| CN105344751A (en) | Compound straightening roll system device and flexible straightening method for cold rolling different-thickness plates | |
| WO1980002810A1 (en) | Forming leveller | |
| CN101486050A (en) | Digital hydraulic cold leveling machine for medium plate | |
| CN220239634U (en) | Mechanically supercharged roller press | |
| CN212552133U (en) | Electrode wire tension double-frequency change control device of high-speed wire-moving electric spark wire-electrode cutting machine tool | |
| JP4359559B2 (en) | Apparatus for providing a mechanical stop for use with a servo-controlled hydraulic piston and method of operating the same | |
| JP3868207B2 (en) | Servo press bottom dead center correction method | |
| JP2014004776A (en) | Processing device of substrate | |
| CN113353678A (en) | Non-contact rolling compression roller device and adjusting method thereof | |
| CN213737810U (en) | Tension control system of digital modified asphalt coiled material production forming line | |
| CN107127217B (en) | Feedback hysteresis control method for edge thinning of cold-rolled silicon steel | |
| CN201175719Y (en) | Hydraulic pressure servo battery pole piece rolling mill | |
| CN111570947A (en) | Method and device for controlling tension dual-frequency change of electrode wire of high-speed wire-moving electric spark wire-cutting machine tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 108, 1st Floor, Building 4, No. 91 Pu'an Road, Doudian, Fangshan District, Beijing 102402 Patentee after: Beijing Weilan New Energy Technology Co.,Ltd. Country or region after: China Address before: No.1 Qihang West Street, Doudian Town, Fangshan District, Beijing Patentee before: BEIJING WELION NEW ENERGY TECHNOLOGY Co.,Ltd. Country or region before: China |