CN220277477U - Alignment degree system for double-sided coating - Google Patents
Alignment degree system for double-sided coating Download PDFInfo
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- CN220277477U CN220277477U CN202322283220.7U CN202322283220U CN220277477U CN 220277477 U CN220277477 U CN 220277477U CN 202322283220 U CN202322283220 U CN 202322283220U CN 220277477 U CN220277477 U CN 220277477U
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- 238000000576 coating method Methods 0.000 title claims abstract description 188
- 239000011248 coating agent Substances 0.000 title claims abstract description 180
- 239000011888 foil Substances 0.000 claims abstract description 140
- 238000001514 detection method Methods 0.000 claims abstract description 78
- 239000000463 material Substances 0.000 claims abstract description 36
- 230000009977 dual effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 22
- 230000008569 process Effects 0.000 description 22
- 238000010586 diagram Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 239000007888 film coating Substances 0.000 description 8
- 238000009501 film coating Methods 0.000 description 8
- 239000002002 slurry Substances 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 5
- 239000006255 coating slurry Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a double-sided coating alignment system. By providing the first centering detection device on the input side of the first surface coating device, the first centering detection device ensures that the first surface coating device can be in a centered position when coating. And a first opposite side deviation correcting device is arranged between the first oven and the second side coating device, so that the foil does not deviate from the technical specification range of the advancing direction when entering the second side coating film. And a second centering detection device is arranged on the input side of the second surface coating device, so that the second surface coating device can be positioned in a centering position when coating. According to the technical scheme provided by the utility model, through the two-dimensional deviation correcting device, the deviation influence caused by equipment and materials is reduced, the dislocation problem of foil materials is avoided, and the production quality of products under the wide and multi-width coating conditions is improved.
Description
Technical Field
The embodiment of the utility model relates to the technical field of battery manufacturing, in particular to a double-sided coating alignment system.
Background
At present, along with the rapid development of lithium ion batteries, the application of coating films with a wide width and a plurality of widths, such as the width of a foil material is more than or equal to 1200mm and the coating width is more than or equal to 6 is gradually increased, meanwhile, the requirement on the double-sided alignment degree of the coating is gradually increased, and the problems of short circuit and fire of positive and negative pole pieces, capacity loss, incapability of entering shells of pole pieces, shortened service life and the like caused by poor coating alignment degree can be caused, so that the product quality and economic benefit are seriously influenced.
In the prior art, in the coating process of the lithium battery cell, EPC opposite side deviation correction is arranged on a coating path, so that the influence of foil dislocation on subsequent double-sided coating is avoided, but the foil dislocation phenomenon is still easy to exist when the coating is performed on a wide range and a plurality of ranges, and the production quality of products is influenced.
Disclosure of Invention
The utility model provides a double-sided coating alignment degree system, which reduces the offset influence caused by equipment and materials, avoids the dislocation problem of foil materials and improves the production quality of products under the wide and multi-width coating conditions.
The embodiment of the utility model provides a double-sided coating alignment system, which is applied to a foil double-sided coating system, wherein the foil double-sided coating system comprises a first side coating device, a first oven, a second side coating device and a second oven which are sequentially arranged, and the double-sided coating alignment system comprises: the device comprises a first centering detection device, a first opposite side deviation correcting device and a second centering detection device;
the first centering detection device is arranged on the input side of the first surface coating device; the first centering detection device is used for centering and correcting the foil entering the first surface coating device, and adjusting the centering and correcting parameters of the foil on the first surface according to the foil between the first surface coating device and the first oven;
the first opposite side deviation correcting device is arranged on the output side of the first oven; the first opposite side deviation rectifying device is used for carrying out opposite side deviation rectifying on the foil material output by the first oven;
the second centering detection device is arranged between the first opposite side deviation correcting device and the second surface coating device and is used for centering and correcting the foil entering the second surface coating device; and adjusting the centering deviation correcting parameters of the foil on the second surface according to the foil between the second surface coating device and the second oven.
Optionally, the first centering detection device comprises a first centering deviation correcting device and a first detection device;
the first centering deviation correcting device is arranged on the input side of the first surface coating device; the first detection device is arranged between the first face coating device and the first oven.
Optionally, the second centering detection device comprises a second centering deviation correcting device and a second detection device;
the second centering deviation correcting device is arranged between the first opposite side deviation correcting device and the second surface coating device, and the second detection device is arranged between the second surface coating device and the second oven.
Optionally, the double-sided coating alignment system further includes a third opposite side deviation rectifying device and a third detection device, where the third opposite side deviation rectifying device is disposed on an output side of the second oven, the third detection device is disposed on an output side of the third opposite side deviation rectifying device, and the third opposite side deviation rectifying device is configured to perform opposite side deviation rectifying on the foil material output by the second oven; the third detection device is used for detecting the material areas of the first surface and the second surface opposite to each other after the foil is coated to determine the alignment degree.
Optionally, the double-sided coating alignment system further includes a display unit, where the display unit is respectively connected with the first detection device, the second detection device, and the third detection device, and the display unit is used to display the detection parameters and the output parameters of the first detection device, the second detection device, and the third detection device respectively.
Optionally, the first centering deviation correcting device includes: the foil centering device comprises a first deviation rectifying sensor for detecting the centering position of a foil, a first deviation rectifying motor, a deviation rectifying roller driven by the first deviation rectifying motor and a first deviation rectifying controller connected with the first deviation rectifying sensor and the first deviation rectifying motor; the first detection device is connected with the first deviation rectifying controller.
Optionally, the second centering deviation rectifying device includes: the second deviation rectifying sensor is used for detecting the centering position of the foil, the second deviation rectifying motor, the deviation rectifying roller driven by the second deviation rectifying motor and the second deviation rectifying controller is connected with the second deviation rectifying sensor and the second deviation rectifying motor; the second detection device is connected with the second deviation rectifying controller.
Optionally, a plurality of groove structures are arranged on the surface of the deviation correcting roller along the axial direction of the deviation correcting roller.
Optionally, the alignment system for double-sided coating further comprises a second opposite side deviation rectifying device, wherein the second opposite side deviation rectifying device is arranged on the input side of the first side coating device, and the second opposite side deviation rectifying device is used for opposite side deviation rectifying of the unreeled foil.
Optionally, the double-sided coating alignment system further includes: and the slitting centering deviation correcting device is arranged at the output side of the second oven and is used for centering and correcting the foil before slitting.
According to the technical scheme provided by the embodiment of the utility model, the first centering detection device is arranged on the input side of the first surface coating device, so that the foil can be in the process specification range of the centering position at the moment when the first surface coating device is used for coating films. The first opposite side deviation correcting device is arranged between the first oven and the second surface coating device, so that the foil does not deviate from the technical specification range of the advancing direction when entering the second surface coating device, and the second centering detecting device is arranged on the input side of the second surface coating device, so that the foil can be positioned at the middle position at the moment when the second surface coating device coats. Through setting up the bi-dimensional deviation rectification of advancing direction and centering direction on the route of foil film process, reduce the skew influence that equipment, material brought, avoid the foil to produce the dislocation problem, improve the product production quality of broad width and many coating conditions.
Drawings
Fig. 1 is a schematic structural diagram of a double-sided coating alignment system according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a dual-sided coating alignment system according to an embodiment of the present utility model;
FIG. 3 is a schematic illustration of a double-sided multi-coating film according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a dual-sided coating alignment system according to an embodiment of the present utility model;
FIG. 5 is a schematic structural diagram of a centering deviation correcting device according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of a principle process of linkage between a centering deviation correcting device and a detecting device according to an embodiment of the present utility model;
fig. 7 is a schematic cross-sectional view of a deviation correcting roller according to an embodiment of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the lithium battery cell coating process, continuous coating is influenced by roller passing precision deviation, turret mechanical precision, oven airflow, fluctuation of foil tension and the like, so that the foil is deviated, particularly when wide-width multi-strip coating is continuously performed, the influence of slurry characteristics, slurry coating pressure, die head/gasket precision and the like is caused, certain deviation exists in the width dimension of each strip after coating, certain deviation exists in the width dimension of each strip after double-sided coating, if the deviation is corrected only through EPC opposite sides, the dislocation phenomenon is easily caused in the coating process of the foil, and the width alignment degree of each strip of coating cannot be ensured to be in a qualified state.
In view of this, fig. 1 is a schematic structural diagram of a double-sided coating alignment system according to an embodiment of the present utility model, referring to fig. 1, the double-sided coating alignment system is applied to a foil double-sided coating system, wherein the foil double-sided coating system includes a first side coating device 140, a first oven 160, a second side coating device 190, and a second oven 210, which are sequentially arranged, and the double-sided coating alignment system includes: a first centering detection device 130, a first pair of edge correction devices 170, and a second centering detection device 180;
the first centering detection device 130 is disposed on the input side of the first surface coating device 140; the first centering detection device 130 is used for centering and rectifying the foil entering the first surface coating device 140; and adjusting centering deviation correcting parameters of the foil on the first surface according to the foil between the first surface coating device 140 and the first oven 160;
the first opposite side deviation rectifying device 170 is arranged at the output side of the first oven 160; the first edge correction device 170 is used for correcting the edge of the foil material output by the first oven 160;
the second centering detection device 180 is disposed between the first opposite side deviation correction device 170 and the second side coating device 190, and the second centering detection device 180 is used for performing centering deviation correction on the foil entering the second side coating device 190; and adjusting the centering deviation correcting parameter of the foil on the second surface according to the foil between the second surface coating device 180 and the second oven 210.
Specifically, after the automatic unreeling machine 110 performs the unreeling operation on the foil, before the foil runs to the first side coating Device 140, the first centering detection Device 130 centers the foil, so that the foil is in a centered position when entering the first side coating Device 140, and after the first side coating Device 140 finishes the current coating of multiple pieces, the first centering detection Device 130 detects the coating effect between the first side coating Device 140 and the first oven 160, and the first centering detection Device 130 may detect the coating effect through a visual detection component, for example, a Change-coupled Device (CCD) detector. The coating effect may include, among other things, the surface quality of the coating film and/or the centering offset of the foil. Therefore, the first centering detection device 130 can form closed-loop control of centering adjustment by using the detection effect as feedback, so that the foil can be in the process specification range of the centering position at the moment when the first surface coating device 140 is used for coating, and thus the position of the foil can be adjusted in a real-time closed-loop manner, the influence of factors such as the coating slurry characteristics, the coating slurry pressure and the like in the first surface coating process can be reduced, and the dislocation problem of the foil can be reduced.
The foil material after being coated by the first surface coating device 140 enters the first oven 160 for baking, a first opposite side deviation rectifying device 170 is arranged behind the first oven 160, the first opposite side deviation rectifying device 170 carries out opposite side deviation rectifying on the foil material output by the first oven 160, and the foil material is ensured not to deviate from the technical specification range of the advancing direction, so that the deviation of the advancing direction caused by external fluctuation such as roller passing precision deviation, turret mechanical precision, oven airflow, foil material tension and the like is reduced. And, further, before the foil runs to the second surface coating device 190, the second centering detection device 180 again centers the foil, so that the foil is also in a centered position when entering the second surface coating device 190. After being coated by the second side coating device 190, the second centering detection device 180 detects the coating effect between the second side coating device 190 and the second oven 210. The second pair of detection devices 180 may be, for example, a visual detection assembly such as a charge-coupled Device (CCD) detector. The coating effect may include, among other things, the surface quality of the coating film and/or the centering offset of the foil. Therefore, the second centering detection device 180 can form closed-loop control of centering adjustment by using the detection effect as feedback, so that the foil can be in the process specification range of the centering position when the second surface coating device 190 is used for coating, and thus the position of the foil can be adjusted in a real-time closed-loop manner, the influence of factors such as the coating slurry characteristics, the coating slurry pressure and the like in the second surface coating process can be reduced, and the dislocation problem of the foil can be reduced.
According to the technical scheme provided by the embodiment of the utility model, the first centering detection device is arranged on the input side of the first surface coating device, so that the foil can be in the process specification range of the centering position at the moment when the first surface coating device is used for coating films. The first opposite side deviation correcting device is arranged between the first oven and the second surface coating device, so that the foil does not deviate from the technical specification range of the advancing direction when entering the second surface coating device, and the second centering detecting device is arranged on the input side of the second surface coating device, so that the foil can be positioned at the middle position at the moment when the second surface coating device coats. Through setting up the bi-dimensional deviation rectification of advancing direction and centering direction on the route of foil film process, reduce the skew influence that equipment, material brought, avoid the foil to produce the dislocation problem, improve the product production quality of broad width and many coating conditions.
Based on the above embodiments, fig. 2 is a schematic structural diagram of another two-sided coating alignment system according to an embodiment of the present utility model, referring to fig. 2, the first centering detection device 130 includes a first centering deviation correcting device 135 and a first detection device 150; the first centering deviation correcting device 135 is arranged at the input side of the first surface coating device; the first detection device 150 is disposed between the first side coating device and the first oven. Optionally, the second centering detection device 180 includes a second centering deviation correcting device 181 and a second detection device 200; the second centering deviation rectifying device 181 is disposed between the first pair of side deviation rectifying devices 170 and the second side coating device 190, and the second detecting device 200 is disposed between the second side coating device 190 and the second oven 210.
Specifically, before the foil runs to the first side coating device 140, the foil is centered and rectified by the first centering and rectifying device 135, so that the foil is in a centered position when entering the first side coating device 140. A first detecting Device 150 is disposed between the first side coating Device 140 and the first oven 160, and after the first side coating Device 140 completes the current coating of a plurality of sheets, the first detecting Device 150 detects the coating effect before entering the first oven 160, and for example, the first detecting Device 150 may employ a visual detecting component, such as a charge-coupled Device (CCD) detector. The coating effect may include, among other things, the surface quality of the coating film and/or the centering offset of the foil. Fig. 2 is a schematic diagram of a double-sided multi-width coating film according to an embodiment of the present utility model, referring to fig. 2, a first detecting device 150 detects the sizes of tabs on two sides of a coated foil, a first side tab size A1 in a first side, a second side tab size A2 in a first side, and a difference between the two side tab sizes is used to obtain a first deviation correction value, that is, the difference between the two side tab sizes is used to reflect the centering offset of the foil, and the first deviation correction value is generated according to the offset, and exemplary, half of the difference between the two side tab sizes is used as the first deviation correction value, that is, (A1-A2)/2 is used as feedback to form closed loop control on a first centering detecting device 130, so as to ensure that the moment of the foil can be in a process specification range of a centering position when the first side coating device 140 coats the film. Therefore, the position of the foil can be adjusted in a real-time closed loop mode, influences of factors such as film coating slurry characteristics, film coating slurry pressure and the like in the first surface film coating process are reduced, and the dislocation problem of the foil is reduced.
The foil material after being coated by the first surface coating device 140 enters the first oven 160 for baking, a first opposite side deviation correcting device 170 is arranged behind the first oven 160, and the first opposite side deviation correcting device 170 carries out opposite side deviation correction on the foil material output by the first oven 160, so that the foil material is ensured not to deviate from the technological specification range of the advancing direction. Therefore, deviation of the traveling direction caused by external fluctuation such as roller passing precision deviation, turret mechanical precision, oven airflow, foil tension and the like is reduced. And, further, before the foil runs to the second surface coating device 190, the second centering deviation correcting device 181 again centers the foil, so that the foil is also in a centered position when entering the second surface coating device 190. After being coated by the second side coating Device 190, a second detecting Device 200 is disposed between the second side coating Device 190 and the second oven 210, and when the second side coating Device 190 completes the current coating of multiple pieces, the second detecting Device 200 detects the coating effect before entering the second oven 210, and for example, the second detecting Device 200 may also employ a visual detecting component, such as a Change-coupled Device (CCD). The coating effect may include, among other things, the surface quality of the coating film and/or the centering offset of the foil. With continued reference to fig. 2, the second detecting device 200 detects the tab sizes of the two sides of the foil after coating, the first side tab size B1 in the second side, the second side tab size B2 in the second side, and obtains a second deviation correction value by using the difference value of the tab sizes of the two sides, that is, the deviation of the foil is reflected by the difference value of the tab sizes of the two sides, and the second deviation correction value is generated according to the deviation, and, by using half of the difference value of the tab sizes of the two sides as the second deviation correction value, that is, (B1-B2)/2, as feedback, forms a closed loop control on the second centering detecting device 180, so as to ensure that the foil can be in the process specification range of the centered position when the second side coating device 190 coats the film. Therefore, the position of the foil can be adjusted in a real-time closed loop, the influence of factors such as film slurry characteristics, film slurry pressure and the like in the second surface film coating process is reduced, and the dislocation problem of the foil is reduced.
Based on the above embodiment, optionally, the double-sided coating alignment system further includes a second opposite side deviation rectifying device 120, where the second opposite side deviation rectifying device 120 is disposed on the input side of the first side coating device 140, and the second opposite side deviation rectifying device 120 is used for opposite side deviation rectifying the unwound foil.
Specifically, a second opposite-edge deviation rectifying device 120 is disposed between the first surface coating device 140 and the automatic unreeling machine 110, that is, after the automatic unreeling machine 110 performs the unreeling operation on the foil, due to the influences of the passing roller level, the circle runout, the roller spacing and the like, a certain deviation of the foil occurs in the unreeling process, so that the second opposite-edge deviation rectifying device 120 performs one opposite-edge deviation rectification on the foil, and the technical specification range of the foil, which is not deviated from the advancing direction, is ensured. And then before the foil runs to the first surface coating device 140, the foil is centered and rectified by the first centering and rectifying device 135, so that the foil is centered when entering the first surface coating device 140, and the correctness of the foil in the running direction is ensured.
Optionally, the double-sided coating alignment system further includes a third opposite edge deviation rectifying device 220 and a third detecting device 230, where the third opposite edge deviation rectifying device 220 is disposed on the output side of the second oven 210, and the third opposite edge deviation rectifying device 220 is used for opposite edge deviation rectifying of the foil material output by the second oven 210. The third detecting device 230 is disposed at an output side of the third opposite side deviation rectifying device 220, and the third detecting device 230 is configured to detect a difference value between corresponding boundaries of the material areas where the first surface and the second surface are opposite after coating, and determine the alignment according to the difference value.
Specifically, the third opposite side deviation rectifying device 220 is disposed at the output side of the second oven 210, after the foil material enters the second oven 210 to be baked after passing through the second side coating device 190, the film coating materials on the first side and the second side of the foil material dry stably, and since the foil material completes centering deviation rectifying in the film coating process of the second side coating device 190, the third opposite side deviation rectifying device 220 is disposed at the output side of the second oven 210 again to carry out opposite side deviation rectifying on the foil material, so as to ensure that the foil material does not deviate from the technological specification range of the advancing direction.
After the third opposite side deviation correcting device 220, a third detecting device 230 is arranged, the opposite sides of the foil are corrected by the third opposite side deviation correcting device 220, the foil is guaranteed not to deviate from the technical specification range of the travelling direction, and at the moment, the film coating materials on the first surface and the second surface of the foil are dried stably, the distance from the boundary of each material area in the first surface to one side of the tab and the distance from the boundary of each material area in the second surface to the same side of the tab are detected by the third detecting device 230, and the boundary of each material area is an exemplary boundary parallel to the travelling direction of the foil. The alignment of the double-sided coating film is reflected by the difference in the boundaries of the material areas where the first and second sides are opposite. Illustratively, in connection with fig. 3, the alignment of the first panel 1 and the second panel 1 is the difference between the two boundaries, which may be expressed as a1=a2=a1-B1; the degree of alignment of the first panel 2 and the second panel 2 may be expressed as a3=a4=c1-C2. And so on, the alignment degree of the two surfaces of each material area can be obtained. The operator can maintain the alignment within the acceptable range by adjusting the relevant parameters of the first and second side coating devices 140 and 190, etc., according to the on-line alignment data.
Optionally, fig. 4 is a schematic structural diagram of another double-sided coating alignment system according to an embodiment of the present utility model, referring to fig. 4, and further includes a display unit 310, where the display unit 310 is connected to the first detecting device 150, the second detecting device 200, and the third detecting device 230, and the display unit 310 is configured to display the detection parameters and the output parameters of the first detecting device 150, the second detecting device 200, and the third detecting device 230, respectively.
Specifically, the number of the display units 310 may be selected according to the system configuration, and in the exemplary embodiment, two display units 310 are configured to be respectively connected to the first detecting device 150, the second detecting device 200, and the third detecting device 230, and in the interface diagram of the display units 310, detection parameters and output parameters such as the first surface, the second surface coating size, the tab size, the multiple material area size, the first deviation correction value, the second deviation correction value, and the like may be displayed. The operator can maintain the alignment within the acceptable range by adjusting the relevant parameters of the first and second surface coating apparatuses 140 and 190, etc., according to the alignment data on the display unit 310.
Optionally, fig. 5 is a schematic structural diagram of a centering deviation correcting device according to an embodiment of the present utility model, referring to fig. 5, the first centering deviation correcting device 135 includes: the first deviation correcting sensor 132, the first deviation correcting motor 133, the deviation correcting roller 134 driven by the first deviation correcting motor 133, and the first deviation correcting controller 131 connected with the first deviation correcting sensor 132 and the first deviation correcting motor 133 are used for detecting the centering position of the foil; the first detecting device 150 is connected to the first deviation rectifying controller 131.
Specifically, the deviation correcting roller 134 of the first centering deviation correcting device 135 can be driven by the first deviation correcting motor 133 to rotate around the center by the guiding mechanism, the deviation correcting roller 134 can be driven by the first deviation correcting motor 133 to translate, the first deviation correcting sensor 132 can detect whether the foil on the deviation correcting roller 134 is at the center position in real time and feed back to the first deviation correcting controller 131, the first detecting device 150 detects the deviation of the sizes of the two side tabs after coating, a first deviation correcting value is obtained according to the deviation, the first deviation correcting value is fed back to the first deviation correcting controller 131, and the first deviation correcting controller 131 sends a control instruction to the mechanism to move to a proper position according to the first deviation correcting value and the foil position detected by the first deviation correcting sensor 132. In the whole coating process, the first detection device 150 detects feedback information and continuous adjustment of the first centering deviation correcting device 135 in real time, so that closed loop control of centering deviation correcting is formed, and the foil can be in a process specification range of a centering position when the first surface coating device 140 coats a film.
Based on the above embodiment, optionally, the second centering deviation correcting device 181 includes: the second deviation rectifying sensor is used for detecting the centering position of the foil, the second deviation rectifying motor, the deviation rectifying roller driven by the second deviation rectifying motor and the second deviation rectifying controller is connected with the second deviation rectifying sensor and the second deviation rectifying motor; the second detecting device 200 is connected with a second deviation rectifying controller.
Specifically, the deviation correcting roller of the second centering deviation correcting device 181 can be driven by the guiding mechanism to rotate around the center under the driving of the second deviation correcting motor, the deviation correcting roller can be driven by the second deviation correcting motor to translate, the second deviation correcting sensor can detect whether the foil on the deviation correcting roller is at the center position in real time and feeds back the foil to the second deviation correcting controller, the second detecting device 200 detects the deviation of the sizes of the lugs on two sides after coating, a second deviation correcting value is obtained according to the deviation, the second deviation correcting value is fed back to the second deviation correcting controller, and the second deviation correcting controller sends a control instruction to the mechanism to move to a proper position according to the second deviation correcting value and the foil position detected by the second deviation correcting sensor. In the whole coating process, the second detection device 200 detects feedback information and continuous adjustment of the second centering deviation correcting device 181 in real time, so that closed loop control of centering deviation correcting is formed, and the foil can be in a process specification range of a centering position when the second surface coating device 190 coats a film.
For example, fig. 6 is a schematic process diagram of a principle process of linkage between a centering deviation correcting device and a detecting device provided by the embodiment of the present utility model, referring to fig. 6, taking a first centering deviation correcting device 135 and a first detecting device 150 as an example, before S110 a foil runs to the first surface coating device 140, the foil is centered by the first centering deviation correcting device 135, so that the foil is in a centered position when entering the first surface coating device 140. S120, a coating process is carried out in the first surface coating device 140, a first detection device 150, such as a CCD detection machine, is arranged between the first surface coating device 140 and the first oven 160, S130 and the CCD detect the lug sizes on two sides of the foil after coating, the first side lug size A1 in the first surface, the second side lug size A2 in the first surface obtain a first deviation correction value by utilizing the difference value of the lug sizes on two sides, S140 is judged by comparing the first deviation correction value with a preset value, S150 sends the first deviation correction value to the first centering deviation correction device 135 if the first deviation correction value exceeds the preset value, S160 sends the first deviation correction value to the first centering deviation correction device 135, S170 carries out deviation correction action on the first centering deviation correction device 135, CCD detection is carried out after the visual field difference is finished, and S180 keeps a continuous detection state if the first deviation correction value does not exceed the preset value.
Fig. 7 is a schematic cross-sectional view of a deviation correcting roller according to an embodiment of the present utility model, referring to fig. 7, a plurality of groove structures are disposed on a surface of the deviation correcting roller along an axial direction of the deviation correcting roller. The deviation correcting rollers 134 of the first centering deviation correcting device 135 and the second centering deviation correcting device 181 are designed by adopting a multi-groove structure 610, and when the foil passes through the deviation correcting rollers 134, air generated by a large wrap angle can be discharged along with the groove structure 610, so that the foil is ensured not to be wrinkled in the running process, and the flatness of the foil is improved.
Based on the above embodiment, optionally, the two-sided coating alignment system further includes: the slitting centering deviation rectifying device 240, the slitting centering deviation rectifying device 240 is arranged at the output side of the second oven 210, and the slitting centering deviation rectifying device 240 is used for centering deviation rectifying of the foil before slitting.
Specifically, the slitting centering deviation correcting device 240 is continuously arranged at the output side of the third opposite side deviation correcting device 220, and because the foil is centered and corrected in the film coating process of the second side coating device 190, the foil is centered and corrected by the third opposite side deviation correcting device 220 again at the output side of the second oven 210, so that the foil is ensured not to deviate from the process specification range of the advancing direction, and further, the foil is further centered and corrected by the slitting centering deviation correcting device 240 before the slitting process, so that the centering position of the foil is ensured to be in the process specification range.
Based on the above embodiment, the first centering deviation correcting Device 135, the second centering deviation correcting Device 181 and the slitting centering deviation correcting Device 240 in the embodiment of the present utility model may be CPC deviation correcting devices in the prior art, the first opposite side deviation correcting Device 170, the second opposite side deviation correcting Device 120 and the third opposite side deviation correcting Device 220 may be EPC deviation correcting devices in the prior art, and the first detecting Device 150, the second detecting Device 200 and the third detecting Device 230 may be size-detected by using a Charge Coupled Device (CCD) detector.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. The utility model provides a two-sided coating alignment degree system, is applied to two-sided coating system of pole piece, two-sided coating system of pole piece is including the first face coating device, first oven, second face coating device and the second oven that arrange in proper order, its characterized in that, two-sided coating alignment degree system includes: the device comprises a first centering detection device, a first opposite side deviation correcting device and a second centering detection device;
the first centering detection device is arranged on the input side of the first surface coating device; the first centering detection device is used for centering and correcting the foil entering the first surface coating device, and adjusting the centering and correcting parameters of the foil on the first surface according to the foil between the first surface coating device and the first oven;
the first opposite side deviation correcting device is arranged on the output side of the first oven; the first opposite side deviation rectifying device is used for carrying out opposite side deviation rectifying on the foil material output by the first oven;
the second centering detection device is arranged between the first opposite side deviation correcting device and the second surface coating device and is used for centering and correcting the foil entering the second surface coating device; and adjusting the centering deviation correcting parameters of the foil on the second surface according to the foil between the second surface coating device and the second oven.
2. The duplex coating alignment system of claim 1 wherein the first centering detection device comprises a first centering correction device and a first detection device;
the first centering deviation correcting device is arranged on the input side of the first surface coating device; the first detection device is arranged between the first face coating device and the first oven.
3. The duplex coating alignment system of claim 2 wherein the second centering detection device comprises a second centering correction device and a second detection device;
the second centering deviation correcting device is arranged between the first opposite side deviation correcting device and the second surface coating device, and the second detection device is arranged between the second surface coating device and the second oven.
4. The double-sided coating alignment system according to claim 3, further comprising a third opposite side deviation rectifying device and a third detection device, wherein the third opposite side deviation rectifying device is arranged at the output side of the second oven, the third detection device is arranged at the output side of the third opposite side deviation rectifying device, and the third opposite side deviation rectifying device is used for opposite side deviation rectifying of the foil material output by the second oven; the third detection device is used for detecting the material areas of the first surface and the second surface opposite to each other after the foil is coated to determine the alignment degree.
5. The double-sided coating alignment system of claim 4, further comprising a display unit respectively connected to the first, second and third detection devices, the display unit for displaying detection parameters and output parameters of the first, second and third detection devices, respectively.
6. The duplex coating alignment system of claim 2 wherein the first centering deviation correcting device comprises: the foil centering device comprises a first deviation rectifying sensor for detecting the centering position of a foil, a first deviation rectifying motor, a deviation rectifying roller driven by the first deviation rectifying motor and a first deviation rectifying controller connected with the first deviation rectifying sensor and the first deviation rectifying motor; the first detection device is connected with the first deviation rectifying controller.
7. The duplex coating alignment system of claim 3 wherein the second centering deviation correcting device comprises: the second deviation rectifying sensor is used for detecting the centering position of the foil, the second deviation rectifying motor, the deviation rectifying roller driven by the second deviation rectifying motor and the second deviation rectifying controller is connected with the second deviation rectifying sensor and the second deviation rectifying motor; the second detection device is connected with the second deviation rectifying controller.
8. The duplex coating alignment system of claim 7 wherein a plurality of groove structures are provided on the surface of the correction roller along the axial direction of the correction roller.
9. The dual sided coating alignment system of any of claims 1-8, further comprising a second pair of edge correction devices disposed on an input side of the first side coating device, the second pair of edge correction devices configured to correct edge correction of the unwound foil.
10. The duplex coating alignment system of any of claims 1-8, further comprising: and the slitting centering deviation correcting device is arranged at the output side of the second oven and is used for centering and correcting the foil before slitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322283220.7U CN220277477U (en) | 2023-08-23 | 2023-08-23 | Alignment degree system for double-sided coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322283220.7U CN220277477U (en) | 2023-08-23 | 2023-08-23 | Alignment degree system for double-sided coating |
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| CN220277477U true CN220277477U (en) | 2024-01-02 |
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| CN202322283220.7U Active CN220277477U (en) | 2023-08-23 | 2023-08-23 | Alignment degree system for double-sided coating |
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| CN (1) | CN220277477U (en) |
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2023
- 2023-08-23 CN CN202322283220.7U patent/CN220277477U/en active Active
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