CN116753873B - Device and method for detecting thickness of composite lithium belt - Google Patents
Device and method for detecting thickness of composite lithium belt Download PDFInfo
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- CN116753873B CN116753873B CN202311019373.9A CN202311019373A CN116753873B CN 116753873 B CN116753873 B CN 116753873B CN 202311019373 A CN202311019373 A CN 202311019373A CN 116753873 B CN116753873 B CN 116753873B
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- composite lithium
- thickness
- lithium belt
- belt
- composite
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 282
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 282
- 239000002131 composite material Substances 0.000 title claims abstract description 257
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 90
- 238000001514 detection method Methods 0.000 claims abstract description 87
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 238000004804 winding Methods 0.000 claims abstract description 34
- 238000003825 pressing Methods 0.000 claims description 25
- 238000013016 damping Methods 0.000 claims description 22
- 238000005286 illumination Methods 0.000 claims description 21
- 230000000149 penetrating effect Effects 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims 3
- 230000008569 process Effects 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 11
- 238000004880 explosion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
- B65H18/10—Mechanisms in which power is applied to web-roll spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/11—Dimensional aspect of article or web
- B65H2701/113—Size
- B65H2701/1133—Size of webs
- B65H2701/11332—Size of webs strip, tape, narrow web
-
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses a device and a method for detecting the thickness of a composite lithium belt, which belong to the technical field of detection devices and comprise the following steps: the device comprises a machine body and a first detection mechanism, wherein the first detection mechanism is arranged on the machine body and is used for carrying out primary detection on the thickness of the composite lithium belt; the transmission mechanism is arranged on the machine body and used for transmitting the composite lithium belt; the second detection mechanism is arranged on the machine body and used for detecting the thickness of the composite lithium belt again, and the winding mechanism is arranged on the machine body and used for winding the composite lithium belt. The invention realizes the rapid detection and transmission of the composite lithium belt, improves the production efficiency, ensures the product quality and effectively reduces the cost in the detection process.
Description
Technical Field
The invention relates to the technical field of detection devices, in particular to a device and a method for detecting the thickness of a composite lithium belt.
Background
In the preparation process of the lithium battery, the number of layers of the lithium belt is required to be set according to the type of the lithium battery, so that the thickness of the lithium belt is an important factor influencing the number of layers of the lithium belt, and the thickness of the lithium belt is usually required to be standardized. However, when the lithium belt is prepared, a hydraulic cylinder is generally used as a pressing mechanism to press the lithium belt, and the hydraulic cylinder is worn in the long-term use process, so that the pressing force is reduced, and the thickness of the extruded lithium belt is unstable.
In the lithium area preparation process, can detect the thickness of lithium area usually and promote the yield in lithium area, among the prior art, detect the thickness in lithium area through manual measurement's mode usually, but efficiency and the precision of manual detection are low, can't improve production efficiency and guarantee product quality, on the other hand, if detect the thickness in lithium area with the help of accurate thick instrument of side, not only can increase detection cost, also can influence production efficiency.
Disclosure of Invention
To solve the above problems, a first aspect of the present invention provides a composite lithium strip thickness detection device, including:
the machine body is provided with a machine body,
the first detection mechanism is arranged on the machine body and is used for carrying out primary detection on the thickness of the composite lithium belt;
the transmission mechanism is arranged on the machine body and used for transmitting the composite lithium belt;
the second detection mechanism is arranged on the machine body and is used for detecting the thickness of the composite lithium belt again,
the winding mechanism is arranged on the machine body and is used for winding the composite lithium belt;
wherein the first detection mechanism includes: the device comprises a bypass generator and a vibration sensing assembly, wherein the bypass generator is matched with the vibration sensing assembly to obtain a vibration value of the composite lithium belt so as to judge the thickness of the composite lithium belt.
Optionally, the second detection mechanism includes:
an exposure base, a light source,
the brightness sensing component is matched with the exposure seat to obtain an illumination intensity value penetrating through the composite lithium belt so as to judge the thickness of the composite lithium belt;
and/or an ultrasonic thickness gauge for measuring the thickness of the composite lithium strip.
Optionally, the exposure holder includes:
the seat body is of a hollow structure;
the luminous rod is arranged in the seat body;
the light-transmitting plate is arranged on the base body;
the brightness sensing component is arranged above the exposure seat and comprises:
and the brightness sensor is used for acquiring the illumination intensity value penetrating through the composite lithium belt.
The bypass flow generator includes:
the duct is of a hollow pipeline structure with openings at two ends, and the two ends of the duct are respectively positioned at the two sides of the composite lithium belt;
the fan is arranged in the duct;
the vibration sensing assembly includes:
the base is arranged on the machine body;
the movable seat is connected with the base in a sliding manner;
the vibration sensor is used for acquiring a vibration value of the composite lithium belt which vibrates under the action of the bypass generator;
the vibration sensor is arranged on the movable seat.
Optionally, the bypass flow generator further comprises:
one end of the pressurizing head is connected with the duct, the other end of the pressurizing head is of a structure with a reduced opening, and one end of the pressurizing head with the reduced opening is opposite to one side of the composite lithium belt;
the device comprises a converging cover, a bypass and a lithium strip, wherein one end of the converging cover is connected with the bypass, the other end of the converging cover is of an opening expansion structure, and the opening expansion end of the converging cover is opposite to one side of the lithium strip;
two ends of the duct with openings are respectively positioned at two sides of the composite lithium band in the width direction.
Optionally, a fixing plate is arranged on the machine body;
the transmission mechanism includes: a transfer assembly and a press roll assembly adapted to the transfer assembly;
wherein, the transmission assembly includes:
a first motor is provided with a first motor,
the first driving roller is connected with the first motor;
the press roll assembly includes:
a bevel angle frame;
the first telescopic cylinder is connected with the bevel angle frame;
the sliding frame is connected with the output end of the shrinkage cylinder and is movably connected with the bevel frame;
the compression roller is connected with the sliding frame;
wherein, the bevel angle frame is of an L-shaped structure, one end of the bevel angle frame is connected with the fixed plate, and the other end of the bevel angle frame is respectively and movably connected with the first driving roller and the sliding frame;
still be equipped with damping transmission mechanism in the organism, damping transmission mechanism's quantity is two sets of, and two sets of damping transmission mechanism set up relatively, damping transmission mechanism includes:
a first electric telescopic rod is arranged on the first electric telescopic rod,
the fixing frame is connected with the first electric telescopic rod;
the baffle is connected with the fixing frame;
one end of the movable rod is connected with the partition plate;
the pressing plate is connected with the other end of the movable rod, which is far away from the partition plate;
the composite lithium strip passes through the gap between the two sets of pressboards.
Optionally, the second detection mechanism further includes:
the flattening components and the second driving rollers are arranged on two sides of the exposure seat, and the flattening components are matched with the second driving rollers to enable the composite lithium belt passing through the exposure seat to be kept flat;
the included angle adjusting assembly is arranged between the first driving roller and the exposure seat, and is positioned below the exposure seat and used for driving the composite lithium belt and adjusting the included angle between the composite lithium belt and the exposure seat.
The flattening assembly includes:
a third electric telescopic rod is arranged on the upper part of the lower part,
the rack is connected with the third electric telescopic rod;
the torsion gear is meshed with the rack;
a torsion shaft connected to the torsion gear,
the pressing piece is connected with the torsion shaft, and one end of the pressing piece, which is far away from the torsion shaft, is abutted against the composite lithium belt and then matched with the seat body to press the composite lithium belt on the seat body;
the included angle adjusting assembly includes:
a second electric telescopic rod is arranged on the upper part of the first electric telescopic rod,
the sliding piece is connected with the second electric telescopic rod;
the sliding groove is arranged on the fixed plate and is in sliding connection with the sliding piece;
the third driving roller is arranged on the sliding piece;
the sliding groove is formed in the horizontal direction of the fixing plate.
The second aspect of the present invention provides a method for detecting the thickness of a composite lithium strip, which is detected by adopting the method for detecting the thickness of a composite lithium strip according to any one of the above schemes, and is characterized by comprising the following steps:
preliminary detection is carried out, and a vibration value of the composite lithium belt is obtained to judge the thickness of the composite lithium belt;
judging the thickness, namely judging whether the thickness of the composite lithium belt meets the standard requirement or not through the vibration value of the composite lithium belt;
and (3) accurately detecting, judging whether the thickness of the composite lithium belt meets the standard requirement according to the illumination intensity value after penetrating through the composite lithium belt and judging whether the thickness of the composite lithium belt meets the standard requirement by measuring the thickness of the composite lithium belt.
Optionally, the thickness determination includes:
(1) If the vibration value of the composite lithium belt is smaller than the first preset vibration value or larger than the second preset vibration value, the thickness of the composite lithium belt does not meet the standard requirement, an accurate detection step is carried out, and the winding mechanism winds at the second winding speed;
(2) If the vibration value of the composite lithium belt is larger than the first preset vibration value and smaller than the second preset vibration value, the thickness of the composite lithium belt meets the standard requirement, a preliminary detection step is kept, and the winding mechanism winds at a first winding speed;
the first preset vibration value is smaller than the second preset vibration value, and the second winding speed is smaller than the first winding speed.
Optionally, the accurate detection step includes:
continuously acquiring thickness values of a plurality of composite lithium strips on the same lithium strip, calculating thickness standard deviation according to the thickness values of the plurality of composite lithium strips, and judging uniformity of the composite lithium strips according to the thickness standard deviation values;
wherein, the formula for calculating the thickness standard deviation according to the thickness values of the plurality of composite lithium strips is as follows:
wherein S is the standard deviation;
X i the thickness value of the composite lithium belt;
an average value of thickness values of a plurality of composite lithium strips;
n is the number of the thickness values of the composite lithium belt.
By adopting the technical scheme, the invention has the following technical effects:
the thickness of the composite lithium belt is primarily judged by acquiring the vibration value of the composite lithium belt, if the vibration value does not meet the standard requirement, the rolling speed is reduced, whether the thickness of the composite lithium belt meets the standard requirement is accurately judged by penetrating the illumination intensity value of the composite lithium belt and measuring the thickness of the composite lithium belt by an ultrasonic thickness gauge, the quick detection and transmission of the composite lithium belt are realized, the production efficiency is improved, the product quality is guaranteed, and the cost in the detection process is effectively reduced.
Drawings
FIG. 1 is a schematic diagram of the internal structure of a device for detecting the thickness of a composite lithium strip according to the present invention;
FIG. 2 is a schematic diagram showing the bottom view of a device for detecting the thickness of a composite lithium strip according to the present invention;
FIG. 3 is a schematic structural view of a damping transmission mechanism in a composite lithium belt thickness detection device according to the present invention;
FIG. 4 is a schematic diagram of an explosion structure of a damping transmission mechanism in a composite lithium belt thickness detection device according to the present invention;
FIG. 5 is a schematic structural view of a first detecting mechanism in a composite lithium strip thickness detecting device according to the present invention;
FIG. 6 is a cross-sectional view of a bypass flow generator in a composite lithium strip thickness detection device according to the present invention;
FIG. 7 is a schematic view of a vibration sensing assembly in a composite lithium strip thickness detection device according to the present invention;
FIG. 8 is a schematic view of a part of the internal structure of a device for detecting the thickness of a composite lithium strip according to the present invention;
FIG. 9 is a schematic diagram of a transmission mechanism in a composite lithium belt thickness detection device according to the present invention;
FIG. 10 is a schematic structural view of an included angle adjusting assembly in a composite lithium strip thickness detection device according to the present invention;
FIG. 11 is a schematic view of a part of the structure of a second detecting mechanism in a composite lithium strip thickness detecting device according to the present invention;
FIG. 12 is a schematic diagram of an explosion structure of an exposure seat in a composite lithium belt thickness detection device according to the present invention;
FIG. 13 is a schematic view of the structure of a flattening assembly in a composite lithium strip thickness detection device according to the present invention;
FIG. 14 is a schematic view showing the structure of a brightness sensor assembly in a composite lithium strip thickness detection device according to the present invention;
fig. 15 is a schematic structural diagram of a second detecting mechanism in the composite lithium belt thickness detecting device according to the present invention.
Wherein the reference numerals have the following meanings:
1. a body; 11. a support surface; 111. a discharge port; 12. a feed inlet; 13. damping transmission mechanism; 131. a first electric telescopic rod; 132. a fixing frame; 133. a partition plate; 134. a fixed rod; 135. a movable rod; 136. a pressing plate; 14. a fixing plate; 141. a diagonal groove;
2. a first detection mechanism; 21. a bypass flow generator; 211. a duct; 212. a blower; 213. a pressurizing head; 214. a confluence cover; 22. a vibration sensing assembly; 221. a base; 222. a movable seat; 223. a vibration sensor;
3. a transmission mechanism; 31. a transmission assembly; 311. a first motor; 312. a first driving roller; 32. a press roll assembly; 321. a bevel angle frame; 322. a first telescopic cylinder; 323. a sliding frame; 324. a press roller;
4. a second detection mechanism; 41. an exposure seat; 411. a base; 412. a light-emitting rod; 413. a light-transmitting plate; 414. a limit push plate; 42. a brightness sensing component; 421. a second motor; 422. a threaded rod; 423. a thread sleeve; 424. a slide block; 425. a fixing seat; 426. a brightness sensor; 43. an included angle adjusting component; 431. a second electric telescopic rod; 432. a sliding member; 433. a chute; 434. a third driving roller; 44. a flattening assembly; 441. a third electric telescopic rod; 442. a rack; 443. a torsion gear; 444. a torsion shaft; 445. tabletting; 45. a second driving roller; 46. a side frame; 47. an ultrasonic thickness gauge;
5. a winding mechanism; 51. a third motor; 52. and (5) a wind-up roller.
Description of the embodiments
In order that those skilled in the art will better understand the present invention, a detailed description of embodiments of the present invention will be provided below, together with the accompanying drawings, wherein it is evident that the embodiments described are only some, but not all, of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of such phrases 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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Embodiment one: the first aspect of the invention provides a device for detecting the thickness of a composite lithium strip.
FIG. 1 is a schematic diagram of the internal structure of a device for detecting the thickness of a composite lithium strip according to the present invention;
as shown in fig. 1, a composite lithium strip thickness detection device comprises a machine body 1, and a first detection mechanism 2, a transmission mechanism 3, a second detection mechanism 4 and a winding mechanism 5 which are arranged on the machine body 1 in sequence according to a composite lithium strip winding process, wherein the first detection mechanism 2 is used for carrying out primary detection on the thickness of the composite lithium strip, the transmission mechanism 3 is used for carrying out transmission on the composite lithium strip, the second detection mechanism 4 is used for carrying out secondary detection on the thickness of the composite lithium strip, and the winding mechanism 5 is used for winding the composite lithium strip, so that the composite lithium strip thickness detection device can automatically carry out winding after detecting the composite lithium strip, and thus the automatic detection process of the composite lithium strip is realized.
In some embodiments, the machine body 1 is a square hollow structure, and the top of the machine body is a flat supporting surface 11 for fixedly supporting the first detecting mechanism 2, the transmission mechanism 3, the second detecting mechanism 4 and the winding mechanism 5 which are arranged on the machine body 1. And organism 1 has certain rigidity and hardness, can support first detection mechanism 2, transmission mechanism 3, and the inner structure of organism 1 can also be avoided mechanical collision damage to the second detection mechanism 4 and rolling mechanism 5 to play good guard action.
FIG. 2 is a schematic diagram showing the bottom view of a device for detecting the thickness of a composite lithium strip according to the present invention;
as shown in fig. 2, an opening is provided at one side of the machine body 1, and a feed port 12 is provided at the opening for receiving and pulling the composite lithium strip into the composite lithium strip thickness detection device for detection.
In some embodiments, the hollow part of the machine body 1 is further provided with a damping transmission mechanism 13, and the damping transmission mechanism 13 is connected with the composite lithium belt and is used for pressing the composite lithium belt, so that the composite lithium belt can be kept in a flat state and enter the composite lithium belt thickness detection device.
FIG. 3 is a schematic structural view of a damping transmission mechanism in a composite lithium belt thickness detection device according to the present invention;
FIG. 4 is a schematic diagram of an explosion structure of a damping transmission mechanism in a composite lithium belt thickness detection device according to the present invention;
as shown in fig. 3, the number of the damping transmission mechanisms 13 is two, and the two sets of damping transmission mechanisms 13 are arranged oppositely, and the composite lithium belt passes through the gaps between the two sets of damping transmission mechanisms 13, so that the composite lithium belt is pressed by the two sets of damping transmission mechanisms 13, and the composite lithium belt is kept flat.
As shown in fig. 4, the damping transmission mechanism 13 includes a first electric telescopic rod 131, a fixing bracket 132 connected to the first electric telescopic rod 131, a partition plate 133 connected to the fixing bracket 132, a fixing rod 134 connecting the fixing bracket 132 to the partition plate 133, a movable rod 135 connected to the partition plate 133, and a pressing plate 136 connected to the movable rod 135, and a composite lithium strip passes through a gap between the two sets of pressing plates 136.
In some embodiments, the fixing frame 132 has an X-shaped structure, one side of which is connected to the output end of the first electric telescopic rod 131, and the other side of which is connected to the partition 133; further, the partition plate 133 has a plate-shaped structure, and the ends of the fixing frame 132 are respectively connected to four corners of the partition plate 133 via fixing rods 134, so that the stability of fixing the partition plate 133 to the fixing frame 132 can be effectively enhanced by arranging the fixing frame 132 in a crossed X-shaped structure.
Further, two ends of the movable rod 135 are respectively connected with the separator 133 and the pressing plate 136, and the pressing plates 136 located at two sides of the composite lithium belt are abutted against the composite lithium belt, so as to play a role in pressing the composite lithium belt. On the other hand, the first electric telescopic rods 131 respectively drive the two groups of pressing plates 136 positioned on two sides of the composite lithium belt to be close to or far away from each other and then to be in contact with the composite lithium belt, so that the composite lithium belt thickness detection device can press the composite lithium belts with different thicknesses.
In some embodiments, the movable rod 135 is a flexible elastic rod in the damping transmission mechanism 13, which is because, to avoid the excessive pressure generated by the pressing plates 136 at two sides of the composite lithium belt after the pressing plates abut against the composite lithium belt, the composite lithium belt cannot be wound normally, so as to affect the automatic detection of the composite lithium belt. By providing the movable bar 135 as a telescopic elastic bar, the pressing plate 136 is enabled to keep a pressing action on the composite lithium strip on the one hand, and to keep a normal rolling of the composite lithium strip on the other hand.
Further, the damping transmission mechanism 13 is vertically arranged in the hollow structure in the machine body 1, so that the composite lithium strip can be kept flat and in a vertical state to enter the first detection mechanism 2 above the machine body 1 for primary detection.
FIG. 5 is a schematic structural view of a first detecting mechanism in a composite lithium strip thickness detecting device according to the present invention;
as shown in fig. 5, the supporting surface 11 is provided with an opening, and the opening is a discharge hole 111, which is used for conducting the composite lithium strip to the first detecting mechanism 2 on the machine body 1, in some embodiments, the first detecting mechanism 2 includes a bypass generator 21 and a vibration sensing assembly 22, and the bypass generator 21 is matched with the vibration sensing assembly 22 to obtain a vibration value of the composite lithium strip so as to determine the thickness of the composite lithium strip, and a specific matching manner will be further described below.
FIG. 6 is a cross-sectional view of a bypass flow generator in a composite lithium strip thickness detection device according to the present invention;
as shown in fig. 6, the bypass flow generator 21 includes: a duct 211, a fan 212 provided in the duct 211. In some embodiments, the duct 211 is a C-shaped hollow pipe structure with openings at two ends, the fan 212 is disposed in the hollow structure of the duct 211, and the openings at two ends of the duct 211 are respectively located at two sides of the composite lithium strip.
It will be appreciated that when the fan 212 disposed in the duct 211 is operated, the generated air flow escapes from one of the openings of the duct 211 and acts on one side of the composite lithium strip to vibrate the composite lithium strip. Of course, in order to make the vibration of the composite lithium band more obvious, two ends of the duct 211 having an opening are respectively located at two sides of the composite lithium band in the width direction.
Further, a pressurizing head 213 is further disposed at one opening of the duct 211, in some embodiments, one end of the pressurizing head 213 is connected to the air flow escaping opening of the duct 211, the other end of the pressurizing head 213 is in a structure with a reduced opening, and the reduced end of the opening of the pressurizing head 213 is opposite to one side of the composite lithium strip, so that the effect of the air flow on the composite lithium strip is enhanced, and the composite lithium strip vibrates under the effect of the air flow.
Further, a confluence cover 214 is further disposed at another opening of the duct 211, in some embodiments, one end of the confluence cover 214 is connected to the duct 211, and the other end of the confluence cover 214 is in an expanded structure, and the expanded end of the opening of the confluence cover 214 faces to one side of the composite lithium belt, so as to collect the air flow escaping from the pressurizing head 213, maintain the circulating flow of the air flow, and on the other hand, reduce the influence of the air flow on other processes.
FIG. 7 is a schematic view of a vibration sensing assembly in a composite lithium strip thickness detection device according to the present invention;
as shown in fig. 7, the vibration sensing assembly 22 includes: a base 221, a movable base 222 provided on the base 221 and slidably connected to the base 221, and a vibration sensor 223 provided on the movable base 222; in some embodiments, the base 221 is disposed on the machine body 1, and the movable base 222 is slidably connected to the base 221, so as to adjust the distance between the vibration sensor 223 and the composite lithium strip.
Further, the vibration sensor 223 is used to obtain the vibration value of the composite lithium strip vibrating under the action of the bypass flow generator 21, and it is understood that the vibration sensor is a device for measuring the vibration of the object, and the principle is to determine the vibration state of the object by detecting the tiny displacement or speed change of the surface of the object due to the vibration.
It should be noted that, the thickness of the composite lithium belt is determined by the vibration value, in order to preliminarily determine whether the thickness of the composite lithium belt meets the specification requirement, accurate data of the thickness of the composite lithium belt cannot be obtained, specifically, the vibration value of the composite lithium belt generally does not fluctuate in a large range, and if the vibration value fluctuates in a large range, it is indicated that the thickness of the composite lithium belt may not meet the specification requirement.
FIG. 8 is a schematic view of a part of the internal structure of a device for detecting the thickness of a composite lithium strip according to the present invention;
FIG. 9 is a schematic diagram of a transmission mechanism in a composite lithium belt thickness detection device according to the present invention;
as shown in fig. 8, the conveying mechanism 3 is disposed above the first detecting mechanism 2, and is used for conducting the composite lithium belt detected by the first detecting mechanism 2 to the second detecting mechanism 4.
As shown in fig. 9, the transmission mechanism 3 includes: a transfer assembly 31, and a press roll assembly 32 coupled to the transfer assembly 31, wherein the transfer assembly 31 comprises: the first motor 311 is connected to a first driving roller 312 at the output end of the first motor 311, where the first driving roller 312 is connected to the composite lithium belt, so as to perform the function of conducting the composite lithium belt to the second detection mechanism 4, and in some embodiments, a fixing plate 14 may be provided on the machine body 1 to fix the transmission assembly 31.
Further, the press roller assembly 32 is matched with the conveying assembly 31, and is used for flattening the composite lithium belt, so that the composite lithium belt passing through the first detecting mechanism 2 can be kept flat, and the press roller assembly comprises: the device comprises an oblique angle frame 321, a first telescopic cylinder 322 connected with the oblique angle frame 321, a sliding frame 323 connected with the output end of the first telescopic cylinder 322 and movably connected with the oblique angle frame 321, and a compression roller 324 connected with the sliding frame 323. In some embodiments, the bevel frame 321 has an L-shaped structure, one end of which is connected to the fixed plate 14, and the other end of which is movably connected to the first driving roller 312 and the sliding frame 323, respectively.
Further, the fixed plate 14 is further provided with an inclined angle groove 141, and the inclined angle groove 141 is connected with the first telescopic cylinder 322 and movably connected with the sliding frame 323, so as to fix the press roller assembly 32. When the first telescopic cylinder 322 works, the compression roller 324 can be pushed to displace along the direction of the diagonal groove 141 so as to approach or separate from the first driving roller 312, thereby playing a role of adapting to the composite lithium bands with various thicknesses.
As shown in fig. 8, the second detection mechanism 4 includes: the exposure seat 41, a brightness sensing assembly 42, an included angle adjusting assembly 43, a flattening assembly 44 and a second driving roller 45, which are matched with the exposure seat 41, wherein the exposure seat 41 is matched with the brightness sensing assembly 42 to obtain an illumination intensity value so as to judge the thickness of the composite lithium belt, and a specific matching manner will be further described below.
Further, the included angle adjusting component 43 is disposed between the first driving roller 312 and the exposure seat 41, and the included angle adjusting component 43 is disposed below the exposure seat 41, and the included angle adjusting component 43 is used for driving the composite lithium belt and adjusting an included angle between the composite lithium belt and the exposure seat 41.
In some embodiments, the flattening assembly 44 and the second driving roller 45 are respectively located at two sides of the exposure seat 41, and the flattening assembly 44 and the second driving roller 45 cooperate to enable the composite lithium belt passing through the exposure seat 41 to be kept flat, so as to improve the detection precision.
FIG. 10 is a schematic structural view of an included angle adjusting assembly in a composite lithium strip thickness detection device according to the present invention;
as shown in fig. 10, the included angle adjusting assembly 43 includes: the second electric telescopic rod 431, a sliding part 432 connected with the output end of the second electric telescopic rod 431, a sliding groove 433 arranged on the fixed plate 14 and matched with the sliding part 432, and a third driving roller 434 connected with the sliding part 432. In some embodiments, the sliding groove 433 is formed along the horizontal direction of the fixed plate 14 and is slidably connected with the sliding piece 432, and when the second electric telescopic rod 431 works, the driving sliding piece 432 is displaced along the forming direction of the sliding groove 433, so that the third driving roller 434 is driven to displace along the horizontal direction, and the included angle between the composite lithium belt and the exposure seat 41 is adjusted. By adjusting the angle between the composite lithium belt and the exposure holder 41, the composite lithium belt can be made to pass through the exposure holder 41 in a flat state.
FIG. 11 is a schematic view of a part of the structure of a second detecting mechanism in a composite lithium strip thickness detecting device according to the present invention;
as shown in fig. 11, the exposure seat 41 is disposed above the angle adjusting assembly 43, the exposure seat 41 is configured to emit strong light to irradiate through the composite lithium band above the exposure seat 41, and the brightness sensing assembly 42 is configured to obtain an illumination intensity value after penetrating through the composite lithium band.
FIG. 12 is a schematic diagram of an explosion structure of an exposure seat in a composite lithium belt thickness detection device according to the present invention;
as shown in fig. 12, the exposure holder 41 includes: the light-emitting device comprises a base 411, a light-emitting rod 412 arranged in the base 411, and a light-transmitting plate 413 and a limiting push plate 414 arranged on the base 411, wherein in some embodiments, the base 411 is of a hollow structure, the light-emitting rod 412 is arranged in the hollow structure of the base 411, the light-transmitting plate 413 is horizontally arranged at the top of the base 411, and when the composite lithium strip passes through the light-transmitting plate 413 above the base 411, the light-emitting rod 412 in the base 411 emits strong light, penetrates through the composite lithium strip and irradiates the brightness sensing assembly 42, so that the process of judging the thickness of the composite lithium strip through the illumination intensity value is realized.
Further, the limiting push plate 414 is disposed on the base 411, and the setting direction of the limiting push plate 414 is perpendicular to the winding direction of the composite lithium belt, the limiting push plate 414 is in a T-shaped structure, and one end of the limiting push plate 414 abuts against one side of the composite lithium belt to limit the conducting direction of the composite lithium belt, so that the composite lithium belt can pass through the exposure base 41 in a predetermined direction.
FIG. 13 is a schematic view of the structure of a flattening assembly in a composite lithium strip thickness detection device according to the present invention;
as shown in fig. 13, the flattening assembly 44 includes: a third electric telescopic rod 441, a rack 442 connected to the third electric telescopic rod 441, a torsion gear 443 meshed with the rack 442, a torsion shaft 444 connected to the torsion gear 443, and a presser 445 connected to the torsion shaft 444. When the third electric telescopic rod 441 works, the rack 442 is driven to displace, so that the torsion gear 443 and the torsion shaft 444 connected with the torsion gear 443 are driven to rotate, and the pressing piece 445 connected with the torsion shaft 444 is driven to rotate around the connecting point, and in the rotating process, one end of the pressing piece 445 far away from the torsion shaft 444 abuts against the composite lithium belt and then cooperates with the seat 411 to press the composite lithium belt on the seat 411.
In some embodiments, the second driving roller 45 and the end of the pressing piece 445 away from the torsion shaft 444 are respectively located at two sides of the exposure seat 41, so that the second driving roller 45 is matched with the pressing piece 445, so that the composite lithium strip passing through the exposure seat 41 can keep a horizontal direction passing above the exposure seat 41, so that the thickness of the composite lithium strip can be judged according to the illumination intensity value, and on the other hand, the composite lithium strip can be compressed by rotating the pressing piece 445, and the method can also be suitable for composite lithium strips with various thicknesses.
FIG. 14 is a schematic view showing the structure of a brightness sensor assembly in a composite lithium strip thickness detection device according to the present invention;
as shown in fig. 14, the brightness sensor assembly 42 is disposed above the exposure seat 41, and includes: the device comprises a second motor 421, a threaded rod 422 connected with the second motor 421, a threaded sleeve 423 sleeved on the threaded rod 422, a sliding block 424 connected with the threaded sleeve 423, a fixed seat 425 connected with the sliding block 424, and a brightness sensor 426 connected with the fixed seat 425. In some embodiments, the second motor 421 is configured to provide a power to drive the threaded sleeve 423 to reciprocate on the threaded rod 422, and by vertically arranging the threaded rod 422, the slider 424 is used to drive the fixed seat 425 to displace in the vertical direction, so as to adjust the distance between the brightness sensor 426 and the exposure seat 41.
Further, the luminance sensor 426 is configured to obtain an illumination intensity value penetrating through the composite lithium strip, for example, the luminance sensor may be configured to determine whether the thickness of the composite lithium strip meets the specification requirement according to the illumination intensity value after penetrating through the composite lithium strip by detecting the charge in a direct proportion to the illumination intensity after the external light irradiates the photosensitive element.
FIG. 15 is a schematic structural view of a second detecting mechanism in a composite lithium strip thickness detecting device according to the present invention;
as shown in fig. 15, the second detection mechanism 4 further includes: the lithium ion battery pack comprises a side frame 46 and an ultrasonic thickness gauge 47 arranged on the side frame 46, wherein the side frame 46 is of a plate-shaped structure and is obliquely arranged on the stand, and the ultrasonic thickness gauge 47 is arranged on the side frame 46 and is used for measuring the thickness of a composite lithium strip.
It will be appreciated that the ultrasonic thickness gauge 47 may perform thickness measurements based on the principle of ultrasonic pulse reflection, as the ultrasonic pulses emitted by the probe reach the material interface through the object under test, the pulses are reflected back to the probe, and the thickness of the material under test is determined by accurately measuring the time of travel of the ultrasonic waves through the material.
It should be noted that, by determining, by the luminance sensor 426, whether the thickness of the composite lithium strip meets the specification requirement according to the illumination intensity value after penetrating the composite lithium strip, and determining, by measuring the thickness of the composite lithium strip according to the ultrasonic thickness gauge 47, whether the thickness of the composite lithium strip meets the specification requirement can be accurately determined. On the other hand, by simultaneously providing the brightness sensor 426 and the ultrasonic thickness gauge 47 to determine whether the thickness of the composite lithium belt meets the specification requirements, the accuracy can be effectively improved.
As shown in fig. 1, the winding mechanism 5 includes: the third motor 51 and the wind-up roller 52 connected with the third motor 51, wherein the third motor 51 is fixed on the fixed plate 14, and the wind-up roller 52 is driven to rotate by the third motor 51 so as to wind up the lithium belt.
Embodiment two: the second aspect of the present invention provides a method for detecting a thickness of a composite lithium strip, which uses the device for detecting a thickness of a composite lithium strip described in embodiment one, and includes the following steps:
(a) Preliminary detection;
and the bypass generator is matched with the vibration sensing assembly to obtain the vibration value of the composite lithium belt so as to judge the thickness of the composite lithium belt.
(b) Judging the thickness;
judging whether the thickness of the composite lithium belt meets the standard requirement or not through the vibration value of the composite lithium belt.
(c) Accurate detection;
whether the thickness of the composite lithium strip meets the standard requirement is judged by starting the brightness sensor 426 according to the illumination intensity value after penetrating through the composite lithium strip, and whether the thickness of the composite lithium strip meets the standard requirement is judged by starting the ultrasonic thickness gauge 47 to measure the thickness of the composite lithium strip.
In some embodiments, the illumination intensity values after penetrating the composite lithium strip may be constrained according to process requirements, such as: the accurate detection step includes:
(1) If the illumination intensity value penetrating through the composite lithium belt is larger than the preset illumination intensity value, the thickness of the composite lithium belt meets the standard requirement;
(2) If the illumination intensity value penetrating through the composite lithium belt is smaller than the preset illumination intensity value, the thickness of the composite lithium belt does not meet the standard requirement.
In some embodiments, the thickness determination comprises:
(1) If the vibration value of the composite lithium belt is smaller than the first preset vibration value or larger than the second preset vibration value, the thickness of the composite lithium belt does not meet the standard requirement, an accurate detection step is carried out, and the winding mechanism winds at the second winding speed;
(2) If the vibration value of the composite lithium belt is larger than the first preset vibration value and smaller than the second preset vibration value, the thickness of the composite lithium belt meets the standard requirement, the preliminary detection step is kept, and the winding mechanism winds at the first winding speed.
The first preset vibration value is smaller than the second preset vibration value, and the second winding speed is smaller than the first winding speed.
The reason is that when the thickness of the composite lithium strip is primarily determined by the vibration value and does not meet the specification requirement, the thickness of the composite lithium strip can be accurately detected by reducing the winding speed and starting the light-emitting rod 412, the brightness sensor 426 and the ultrasonic thickness gauge 47. When the thickness of the composite lithium belt is preliminarily judged to meet the standard requirement through the vibration value, the accurate detection step is not needed, on one hand, the quick detection and transmission of the composite lithium belt can be realized, so that the production efficiency is improved, the product quality is guaranteed, and on the other hand, the cost in the detection process can be effectively reduced compared with the continuous accurate detection.
In some embodiments, the precision detection step comprises:
continuously acquiring thickness values of a plurality of composite lithium strips on the same lithium strip, calculating thickness standard deviation according to the thickness values of the plurality of composite lithium strips, and judging uniformity of the composite lithium strips according to the thickness standard deviation values;
wherein, the formula for calculating the thickness standard deviation according to the thickness values of the plurality of composite lithium strips is as follows:
，
wherein S is the standard deviation;
X i the thickness value of the composite lithium belt;
an average value of thickness values of a plurality of composite lithium strips;
n is the number of the thickness values of the composite lithium belt.
The reason is that the standard deviation of the thickness is calculated by calculating the thickness values of the plurality of composite lithium strips, so that the degree of dispersion of the thickness values of the plurality of composite lithium strips can be reflected, the smaller the standard deviation value is, the smaller the thickness value of the composite lithium strip deviates from the average value, and the more uniform the thickness of the composite lithium strip is, thereby reflecting the uniformity of the thickness value of the composite lithium strip and providing technical support for judging whether the composite lithium strip is reworked or not.
In some embodiments, the standard deviation values may be constrained according to process requirements, such as: the accurate detection step further includes: and when the standard deviation value is larger than the preset deviation value, sending out an early warning to warn that the composite lithium belt needs to be reworked.
Finally, it should be noted that: the embodiment of the invention is disclosed only as a preferred embodiment of the invention, and is only used for illustrating the technical scheme of the invention, but not limiting the technical scheme; although the invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that; the technical scheme recorded in the various embodiments can be modified or part of technical features in the technical scheme can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (5)
1. The utility model provides a compound lithium area thickness detection method adopts compound lithium area thickness detection device to detect, its characterized in that, compound lithium area thickness detection device includes:
the machine body is provided with a machine body,
the first detection mechanism is arranged on the machine body and is used for carrying out primary detection on the thickness of the composite lithium belt;
the transmission mechanism is arranged on the machine body and used for transmitting the composite lithium belt;
the second detection mechanism is arranged on the machine body and is used for detecting the thickness of the composite lithium belt again;
the winding mechanism is arranged on the machine body and is used for winding the composite lithium belt;
wherein the first detection mechanism includes: the device comprises a bypass generator and a vibration sensing assembly, wherein the bypass generator is matched with the vibration sensing assembly to obtain a vibration value of the composite lithium belt so as to judge the thickness of the composite lithium belt;
the second detection mechanism includes:
an exposure base, a light source,
the brightness sensing component is matched with the exposure seat to obtain an illumination intensity value penetrating through the composite lithium belt so as to judge the thickness of the composite lithium belt;
and/or an ultrasonic thickness gauge for measuring the thickness of the composite lithium strip;
the exposure seat includes:
the seat body is of a hollow structure;
the luminous rod is arranged in the seat body;
the light-transmitting plate is arranged on the base body;
the brightness sensing component is arranged above the exposure seat and comprises:
the brightness sensor is used for acquiring the illumination intensity value penetrating through the composite lithium belt;
the bypass flow generator includes:
the duct is of a hollow pipeline structure with openings at two ends, and the two ends of the duct are respectively positioned at the two sides of the composite lithium belt;
the fan is arranged in the duct;
the vibration sensing assembly includes:
the base is arranged on the machine body;
the movable seat is connected with the base in a sliding manner;
the vibration sensor is used for acquiring a vibration value of the composite lithium belt which vibrates under the action of the bypass generator;
the vibration sensor is arranged on the movable seat;
the bypass flow generator further comprises:
one end of the pressurizing head is connected with the duct, the other end of the pressurizing head is of a structure with a reduced opening, and one end of the pressurizing head with the reduced opening is opposite to one side of the composite lithium belt;
the device comprises a converging cover, a bypass and a lithium strip, wherein one end of the converging cover is connected with the bypass, the other end of the converging cover is of an opening expansion structure, and the opening expansion end of the converging cover is opposite to one side of the lithium strip;
two ends of the duct with openings are respectively positioned at two sides of the composite lithium band in the width direction;
the method for detecting the thickness of the composite lithium belt comprises the following steps:
preliminary detection is carried out, and a vibration value of the composite lithium belt is obtained to judge the thickness of the composite lithium belt;
judging the thickness, namely judging whether the thickness of the composite lithium belt meets the standard requirement or not through the vibration value of the composite lithium belt;
and (3) accurately detecting, judging whether the thickness of the composite lithium belt meets the standard requirement according to the illumination intensity value after penetrating through the composite lithium belt and judging whether the thickness of the composite lithium belt meets the standard requirement by measuring the thickness of the composite lithium belt.
2. The method for detecting the thickness of a composite lithium strip according to claim 1, wherein the thickness judgment comprises:
(1) If the vibration value of the composite lithium belt is smaller than the first preset vibration value or larger than the second preset vibration value, the thickness of the composite lithium belt does not meet the standard requirement, an accurate detection step is carried out, and the winding mechanism winds at the second winding speed;
(2) If the vibration value of the composite lithium belt is larger than the first preset vibration value and smaller than the second preset vibration value, the thickness of the composite lithium belt meets the standard requirement, a preliminary detection step is kept, and the winding mechanism winds at a first winding speed;
the first preset vibration value is smaller than the second preset vibration value, and the second winding speed is smaller than the first winding speed.
3. The method for detecting the thickness of a composite lithium strip according to claim 1, wherein the precisely detecting step includes:
continuously acquiring thickness values of a plurality of composite lithium strips on the same lithium strip, calculating thickness standard deviation according to the thickness values of the plurality of composite lithium strips, and judging uniformity of the composite lithium strips according to the thickness standard deviation values;
wherein, the formula for calculating the thickness standard deviation according to the thickness values of the plurality of composite lithium strips is as follows:
wherein S is the standard deviation; x is X i The thickness value of the composite lithium belt; />An average value of thickness values of a plurality of composite lithium strips; n is the number of the thickness values of the composite lithium belt.
4. The method for detecting the thickness of the composite lithium strip according to claim 1, wherein a fixing plate is arranged on the machine body;
the transmission mechanism includes: a transfer assembly and a press roll assembly adapted to the transfer assembly;
wherein, the transmission assembly includes:
a first motor is provided with a first motor,
the first driving roller is connected with the first motor;
the press roll assembly includes:
a bevel angle frame;
the first telescopic cylinder is connected with the bevel angle frame;
the sliding frame is connected with the output end of the shrinkage cylinder and is movably connected with the bevel frame;
the compression roller is connected with the sliding frame;
wherein, the bevel angle frame is of an L-shaped structure, one end of the bevel angle frame is connected with the fixed plate, and the other end of the bevel angle frame is respectively and movably connected with the first driving roller and the sliding frame;
still be equipped with damping transmission mechanism in the organism, damping transmission mechanism's quantity is two sets of, and two sets of damping transmission mechanism set up relatively, damping transmission mechanism includes:
a first electric telescopic rod is arranged on the first electric telescopic rod,
the fixing frame is connected with the first electric telescopic rod;
the baffle is connected with the fixing frame;
one end of the movable rod is connected with the partition plate;
the pressing plate is connected with the other end of the movable rod, which is far away from the partition plate;
the composite lithium strip passes through the gap between the two sets of pressboards.
5. The method of claim 4, wherein the second detecting means further comprises:
the flattening components and the second driving rollers are arranged on two sides of the exposure seat, and the flattening components are matched with the second driving rollers to enable the composite lithium belt passing through the exposure seat to be kept flat;
the included angle adjusting assembly is arranged between the first driving roller and the exposure seat, is positioned below the exposure seat and is used for driving the composite lithium belt and adjusting the included angle between the composite lithium belt and the exposure seat;
the flattening assembly includes:
a third electric telescopic rod is arranged on the upper part of the lower part,
the rack is connected with the third electric telescopic rod;
the torsion gear is meshed with the rack;
a torsion shaft connected to the torsion gear,
the pressing piece is connected with the torsion shaft, and one end of the pressing piece, which is far away from the torsion shaft, is abutted against the composite lithium belt and then matched with the seat body to press the composite lithium belt on the seat body;
the included angle adjusting assembly includes:
a second electric telescopic rod is arranged on the upper part of the first electric telescopic rod,
the sliding piece is connected with the second electric telescopic rod;
the sliding groove is arranged on the fixed plate and is in sliding connection with the sliding piece;
the third driving roller is arranged on the sliding piece;
the sliding groove is formed in the horizontal direction of the fixing plate.
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| CN202311019373.9A CN116753873B (en) | 2023-08-14 | 2023-08-14 | Device and method for detecting thickness of composite lithium belt |
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| CN202311019373.9A CN116753873B (en) | 2023-08-14 | 2023-08-14 | Device and method for detecting thickness of composite lithium belt |
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