CN116872598A - Film production apparatus and production method - Google Patents
Film production apparatus and production method Download PDFInfo
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- CN116872598A CN116872598A CN202310798081.3A CN202310798081A CN116872598A CN 116872598 A CN116872598 A CN 116872598A CN 202310798081 A CN202310798081 A CN 202310798081A CN 116872598 A CN116872598 A CN 116872598A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 54
- 238000010030 laminating Methods 0.000 claims abstract description 77
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000003860 storage Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 15
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 15
- 238000003475 lamination Methods 0.000 abstract description 11
- 230000033001 locomotion Effects 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1825—Handling of layers or the laminate characterised by the control or constructional features of devices for tensioning, stretching or registration
- B32B38/1833—Positioning, e.g. registration or centering
- B32B38/1841—Positioning, e.g. registration or centering during laying up
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The application provides film production equipment and a production method, relates to the technical field of machinery, and solves the technical problems that poor lamination is caused and production cost is high due to the fact that the existing films are easy to deviate in the lamination process. The film production equipment comprises a laminating roller, CCD equipment and a deviation correcting roller; the laminating roller is used for laminating the first film and the second film to obtain a laminated film; the CCD device is used for acquiring the offset between the first film and the second film in the laminating film; the deviation correcting roller is used for adjusting the first film and/or the second film according to the deviation amount so as to reduce the deviation amount between the first film and the second film.
Description
Technical Field
The application relates to the technical field of machinery, in particular to film production equipment and a film production method.
Background
At present, in the process of laminating films by using a RollToroll production process, due to the fact that a film edge alignment device is not arranged, the films are easy to deviate in the laminating process, poor lamination is caused, and production cost is high.
Disclosure of Invention
The application provides a film production device and a film production method, which can be used for solving the technical problems that poor lamination is caused and production cost is high because the existing film is easy to deviate in the lamination process.
In a first aspect, an embodiment of the present application provides a film production apparatus, including a laminating roller, a CCD apparatus, and a deviation correcting roller;
the laminating roller is used for laminating the first film and the second film to obtain a laminated film;
the CCD device is used for acquiring the offset between the first film and the second film in the laminating film;
the deviation correcting roller is used for adjusting the first film and/or the second film according to the deviation amount so as to reduce the deviation amount between the first film and the second film.
Optionally, in one embodiment, the CCD device comprises a first CCD device and a second CCD device;
the first CCD device is arranged at a position corresponding to the first edge of the laminating film, and the second CCD device is arranged at a position corresponding to the second edge of the laminating film.
Optionally, in one embodiment, the first film is located above the second film, the first CCD device includes a first CCD camera and a first light source, and the second CCD device includes a second CCD camera and a second light source;
the first CCD camera is positioned above the first film, and the first light source is positioned below the second film;
the second CCD camera is located above the first film, and the second light source is located below the second film.
Optionally, in one embodiment, the first light source comprises an LED light source or a metal halogen light source and the second light source comprises an LED light source or a metal halogen light source.
Optionally, in one embodiment, the correction roller includes any one of a proportional correction roller, an integral correction roller, and a proportional integral correction roller.
Optionally, in one embodiment, the laminating roller includes a first roller and a second roller, and the materials of the first roller and the second roller are different.
Optionally, in one embodiment, the first roller is a rubber roller; the second roller is a rigid roller.
Optionally, in one embodiment, the production apparatus further includes an unreeling device, a first storage device, a second storage device, and a reeling device;
the deviation correcting roller is arranged between the first material storage device and the laminating roller, and the first material storage device is arranged between the deviation correcting roller and the unreeling device;
the CCD equipment is arranged between the laminating roller and the second storage device, and the second storage device is arranged between the CCD equipment and the winding device.
In a second aspect, an embodiment of the present application further provides a film production method for producing a film using the film production apparatus provided in the first aspect of the embodiment of the present application, the film production method including:
the laminating roller is used for laminating the first film and the second film to obtain a laminated film;
the CCD equipment obtains the offset between the first film and the second film in the laminating film;
and the deviation correcting roller adjusts the first film and/or the second film according to the deviation amount so as to reduce the deviation amount between the first film and the second film.
Optionally, in an embodiment, the deviation correcting roller adjusts the first film and/or the second film according to the deviation when the deviation is greater than a preset threshold;
wherein the preset threshold is set based on the width of the first film and the width of the second film.
The embodiment of the application has the following beneficial effects:
by adopting the scheme provided by the embodiment of the application, the film production equipment comprises a laminating roller, CCD equipment and a deviation correcting roller; the laminating roller is used for laminating the first film and the second film to obtain a laminated film; the CCD device is used for acquiring the offset between the first film and the second film in the laminating film; the deviation correcting roller is used for adjusting the first film and/or the second film according to the deviation amount so as to reduce the deviation amount between the first film and the second film. Through addding CCD equipment and roller of rectifying for can reduce the skew between first membrane and the second membrane in the laminating membrane, and then can reduce the bad product of laminating, thereby reduction in production cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic view of a film production apparatus according to an embodiment of the present application;
FIG. 2 is a schematic view of a film production apparatus according to an embodiment of the present application;
FIG. 3 is a schematic view showing the structure of another film production apparatus according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a deviation rectification control flow provided in an embodiment of the present application;
fig. 5 is a schematic structural view of still another film production apparatus according to an embodiment of the present application.
Reference numerals:
100-film production equipment; 110-laminating roller; 111-a first roller; 112-a second roller; 121-a first CCD device; 1211—a first CCD camera; 1212—a first light source; 122-a second CCD device; 1221-a second CCD camera; 1222-a second light source; 130-a correction roller; 1301-a first sub-deflection roller; 1302-a second sub-correction roller; 1303-single roller for correcting deviation.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As described in the background of the application, in the process of bonding films using a Roll To Roll production process, the films are prone To misalignment, resulting in poor bonding and high production costs.
In view of this, the embodiment of the present application provides a film production apparatus 100, which can be used to solve the technical problem that the film is easily deviated in the lamination process, so that poor lamination is caused and the production cost is high. Specifically, as shown in fig. 1 and 2 (fig. 2 is a left side view of fig. 1), the film production apparatus 100 may include a laminating roller 110, a CCD apparatus, and a rectifying roller 130; the laminating roller 110 is used for laminating the first film a and the second film B to obtain a laminated film; the CCD device is used for acquiring the offset between the first film A and the second film B in the laminating film; the deviation correcting roller 130 is used for adjusting the first film a and/or the second film B according to the deviation amount so as to reduce the deviation amount between the first film a and the second film B.
The first film a may be a protective film or other performance enhancing films, such as a compensation film, a chromatic aberration compensation film, a viewing angle enlarging film, etc. The second film B may be a phase difference film after coating is completed and drying has been performed. In the case where the first film a is a protective film, the first film a and the second film B are bonded by the bonding roller 110 to obtain a bonded film, so that the second film B can be protected.
In order to facilitate the explanation of the technical solution provided by the embodiments of the present application, the following description will use the first film a as the protective film and the second film as the phase difference film. Of course, it should be understood that the first film a is a protective film, and the second film is a retardation film, which is only a specific example, and does not represent an undue limitation on the solution of the present application. The film production equipment provided by the embodiment of the application can also be applied to the production process of other film laminating products, namely, the first film and the second film can also be other types of films.
In an embodiment of the present application, the laminating roller 110, the CCD device, and the deviation correcting roller 130 may be disposed according to a movement direction of the film (an arrow direction in fig. 1 is a movement direction of the film). When the object of adjustment is one of the first film and the second film, the number of the rectifying rollers 130 may be set to one and disposed on the moving line of the film to be adjusted. When the adjustment object is the first film and the second film, the number of the deviation correcting rollers 130 may be set to two and respectively disposed on the moving lines of the two films.
In order to avoid damage to the second film (phase difference film) by the adjustment process, in practical application, the first film (protective film) is a preferable adjustment target. Thus, the number of the deviation correcting rollers 130 may be set to one and disposed on the moving line of the first film as shown in fig. 1. The deviation correcting roller 130 outputs the first film to the laminating roller 110, and at the laminating roller 110, the laminating roller 110 may include a first roller 111 and a second roller 112, and the first film is laminated with the second film by rolling lamination of the first roller 111 and the second roller 112.
After the first film is bonded to the second film to obtain a bonded film, the bonded film is output from the bonding roller 110. The CCD (charge coupled device ) device may be used to perform shooting detection on the attached film, and detect the amount of offset between the first film a and the second film B in the attached film. As shown in fig. 2, the offset between the first film and the second film may be X. Further, the CCD device may transmit the detected offset X to the correction roller 130.
In an embodiment of the present application, the deviation correcting roller 130 may adjust the first film according to the deviation amount. Specifically, the deviation correcting roller 130 may be located on the deviation correcting roller 130, and the first film that is not yet output to the laminating roller 110 is adjusted, so that the motion track of the first film that is output to the laminating roller 110 subsequently changes, thereby reducing the offset between the first film and the second film in the subsequently laminated films.
As shown in fig. 2, in the attached film, the first film a is shifted to the left with respect to the second film B, that is, the movement locus of the first film is shifted to the left. After the adjustment of the deviation correcting roller 130, the movement track of the subsequent first film is corrected to the right, and then the offset X between the first film and the second film in the subsequently obtained laminated film is reduced.
It can be appreciated that, with the film production apparatus 100 provided in the embodiment of the present application, the film production apparatus 100 includes a laminating roller 110, a CCD apparatus, and a deviation rectifying roller 130; the laminating roller 110 is used for laminating the first film a and the second film B to obtain a laminated film; the CCD device is used for acquiring the offset between the first film A and the second film B in the laminating film; the deviation correcting roller 130 is used for adjusting the first film a and/or the second film B according to the deviation amount so as to reduce the deviation amount between the first film a and the second film B. By adding the CCD device and the deviation rectifying roller 130, the deviation between the first film and the second film in the laminating film can be reduced, and then the product with poor lamination can be reduced, so that the production cost is reduced.
In one implementation, the deviation correcting roller 130 provided in the embodiment of the present application may include any one of a proportional deviation correcting roller, an integral deviation correcting roller, and a proportional integral deviation correcting roller.
Taking the deviation correcting roller 130 as an example, as shown in fig. 3, the deviation correcting roller 130 may include a first sub-deviation correcting roller 1301 and a second sub-deviation correcting roller 1302, where the first sub-deviation correcting roller 1301 and the second sub-deviation correcting roller 1302 are disposed in parallel. And, the first sub-deviation correcting roller 1301 and the second sub-deviation correcting roller 1302 are both arranged on a rotating frame (not shown in the figure), and the rotating frame can rotate around a rotating point on a fixed frame (not shown in the figure), so as to drive the first sub-deviation correcting roller 1301 and the second sub-deviation correcting roller 1302 to rotate and displace. For example, the first sub-correction roller 1301 and the second sub-correction roller 1302 are rotated and then shifted from the dotted line position to the solid line position.
The corresponding correction formula is: + -C=ue×sin beta (1)
Wherein C is the correction adjustment amount. Ue is the distance between the entrance and exit plane, taking the positions of the first and second sub-correction rollers 1301 and 1302 in the dashed line as an example, and Ue is the distance from the right edge of the second sub-correction roller 1302 to the left edge of the first sub-correction roller 1301. Beta is the deviation correcting angle, namely the rotating angle of the first sub deviation correcting roller 1301 and the second sub deviation correcting roller 1302; wherein the rotation angles of the first sub-deviation correcting roller 1301 and the second sub-deviation correcting roller 1302 are the same.
The corresponding control flow of the deviation correcting system can be as shown in fig. 4: the CCD device detects the offset X in real time, converts the offset X into an analog voltage/current signal and transmits the analog voltage/current signal to the processor, the processor outputs a control voltage according to the real-time signal, the control voltage is amplified by the driving circuit and then drives the motor to rotate, and the motor drives the deviation correcting roller to rotate 130 through the transmission mechanism, so that deviation correction is realized.
The corresponding correction principle is as follows: and obtaining a deviation correcting angle beta through voltage, rotation speed change and the like according to the offset X detected by the CCD equipment. And (3) calculating to obtain the correction adjustment quantity C according to the formula (1). Then, the rotation angles β of the first sub-correction roller 1301 and the second sub-correction roller 1302 are controlled so that the correction adjustment amounts of the first sub-correction roller 1301 and the second sub-correction roller 1302 are C. Wherein, the deviation rectifying adjustment quantity C is larger than or equal to the offset quantity X.
The correction roller can also be a proportional integral correction roller, so that the problem of poor correction effect caused by transient errors when the correction roller is a proportional correction roller can be solved. With the correction roller as a proportional integral correction roller, as shown in fig. 5, the correction roller 130 may include a correction single roller 1303. And, the single roller 1303 is connected to a horizontal link (not shown in the figure), and the movement of the horizontal link can drive the single roller 1303 to rotate and displace.
The corresponding correction formula is: + -C=L x K x sin α (2)
Wherein C is the correction adjustment amount. L is the free length of the entrance belt, and L can be 15m-20m. K is an integral deviation correcting coefficient, and K can be specifically 0.5-0.8. Alpha is the deviation correcting angle, namely the angle of rotation of the single deviation correcting roller 1303.
The corresponding deviation correcting process may be as shown in fig. 4, and reference may be made to the corresponding control process when the deviation correcting roller 130 is a proportional deviation correcting roller, which will not be described herein.
The corresponding correction principle is as follows: and obtaining the deviation correcting angle alpha through voltage, rotation speed change and the like according to the deviation X detected by the CCD equipment. And (3) calculating to obtain the correction adjustment quantity C according to the formula (2). Then, the single correction roller 1303 is controlled to rotate by the correction angle α, so that the correction adjustment amount of the single correction roller 1303 is C. Wherein, the deviation rectifying adjustment quantity C is larger than or equal to the offset quantity X.
It can be appreciated that by adopting the above scheme, by setting the deviation rectifying roller 130 to include any one of a proportional deviation rectifying roller, an integral deviation rectifying roller, a proportional integral deviation rectifying roller, and the like, the first film positioned on the deviation rectifying roller 130 can be smoothly and rapidly corrected.
In practical applications, in order to accurately detect the offset of the first film and the second film, in one embodiment, the CCD device includes a first CCD device 121 and a second CCD device 122; as shown in fig. 2, the first CCD device 121 is disposed at a position corresponding to a first edge of the bonding film, and the second CCD device 122 is disposed at a position corresponding to a second edge of the bonding film.
In the embodiment of the application, the direction of the extension line of the first edge of the attached film is parallel or approximately parallel to the movement direction of the film, and the direction of the extension line of the second edge of the attached film is parallel or approximately parallel to the movement direction of the film.
As shown in fig. 2, the first edge of the conformable film may be the left edge of the conformable film and the second edge of the conformable film may be the right edge of the conformable film.
In practice, the first CCD device 121 and the second CCD device 122 may be preferably disposed symmetrically at the first edge and the second edge of the adhesive film in order to make the detected offset amount more accurate.
In an embodiment of the present application, the first CCD device 121 may include a first CCD camera 1211 and a first light source 1212, and the second CCD device 122 may include a second CCD camera 1221 and a second light source 1222. As shown in fig. 2, taking an example that the first film a is located above the second film B, the first CCD camera 1211 may be located above the first film a, and the first light source 1212 may be located below the second film B; the second CCD camera 1221 may be located above the first film a, and the second light source 1222 may be located below the second film B.
In order that the first and second CCD cameras 1211 and 1221 may capture the offset amount, the first and second light sources 1212 and 1222 may be disposed to be blocked by the second film B, i.e., to be located under the front projection of the second film B; meanwhile, the first film a and the second film B may be light-transmitting films.
In practical applications, to further improve accuracy of offset detection, the first light source 1212 may select an LED light source or a metal halogen light source, and the second light source 1222 may select an LED light source or a metal halogen light source.
The first CCD camera 1211 may be a 4K, 8K or 16K camera, and the second CCD camera 1221 may be a 4K, 8K or 16K camera.
It can be appreciated that by adopting the above scheme, the first CCD device and the second CCD device are included by the CCD device, and the first CCD device and the second CCD device are respectively arranged at the positions corresponding to the first edge and the second edge of the laminating film, so that the situation that the first film covers the second film at one edge of the laminating film can be avoided, and only one CCD device is just arranged at the edge and the offset cannot be detected can be avoided. That is, by setting the CCD device to include the first CCD device and the second CCD device, and setting the first CCD device and the second CCD device to be disposed at positions corresponding to the first edge and the second edge of the attaching film, even if the first film covers the second film at one edge of the attaching film, the offset can still be detected from the other edge of the attaching film.
In order to improve the bonding effect, such as bonding tightness, of the first film and the second film and to avoid film damage during roll bonding, in one embodiment, the materials of the first roller 111 and the second roller 112 are different.
Specifically, the first roller 111 may be a rubber roller, and the material may include, but is not limited to, any one of silica gel, rubber, polyurethane, butyl rubber, and ethylene propylene diene monomer rubber.
The second roller 112 may be a rigid roller, and the material may include, but is not limited to, any of cast iron, cast steel, wrought steel, tungsten carbide, and ceramic steel.
In one embodiment, the film production apparatus 100 provided in the embodiment of the present application further includes an unreeling device, a first storage device, a second storage device, and a reeling device; the deviation correcting roller 130 is arranged between the first material storage device and the laminating roller 110, the first material storage device is arranged between the deviation correcting roller 130 and the unreeling device, the CCD equipment is arranged between the laminating roller 110 and the second material storage device, and the second material storage device is arranged between the CCD equipment and the reeling device.
Wherein the first film may be output from the unwind apparatus and output to the first accumulator. The first film output from the first feeding device passes through the deviation rectifying roller 130 and the laminating roller 110 in sequence.
The first storage device may be used for storing a portion of the first film, so that when the unreeling device changes the roll material corresponding to the first film, still the first film may be conveyed to the deviation correcting roller 130 and the laminating roller 110, so as to complete the laminating process, and further ensure the continuity of the laminating process.
The second film may be transported from the equipment corresponding to the drying process line to the laminating roller 110. After the laminating roller 110 obtains the laminating film, the laminating film sequentially passes through the CCD device, the second material storage device and the winding device, and the corresponding coil stock after the laminating film is wound is obtained.
The second storage device can be used for storing a part of laminating film, so that the winding device still can receive the laminating film output by the laminating roller 110 when receiving the corresponding coil stock after the laminating film of the previous batch is wound, and further the continuity of the laminating process can be ensured.
Based on the film production device provided by the embodiment of the application, the embodiment of the application also provides a method for producing a film by using the film production device, and the film production method provided by the embodiment of the application can comprise the following steps:
step one, a laminating roller is used for laminating the first film and the second film to obtain a laminating film;
step two, CCD equipment obtains the offset between the first film and the second film in the laminating film;
and thirdly, adjusting the first film and/or the second film by the deviation correcting roller according to the deviation amount so as to reduce the deviation amount between the first film and the second film.
It can be understood that by adopting the film production method provided by the embodiment of the application, the first film and the second film are bonded by the bonding roller to obtain the bonded film; the CCD equipment obtains the offset between the first film and the second film in the laminating film; and the deviation correcting roller adjusts the first film and/or the second film according to the deviation amount so as to reduce the deviation amount between the first film and the second film. Therefore, the offset between the first film and the second film in the laminating film can be reduced, and the product with poor lamination can be reduced, so that the production cost is reduced.
Taking the first film as an example of the object adjusted by the deviation correcting roller 130, the adjusting of the first film by the deviation correcting roller 130 according to the offset includes:
and obtaining a deviation correcting angle beta through voltage, rotation speed change and the like according to the offset X detected by the CCD equipment. And calculating according to a deviation correcting calculation formula to obtain a deviation correcting adjustment quantity. And then, controlling the rotation of the correction roller so as to enable the adjustment quantity of the correction roller to be the correction adjustment quantity. The deviation rectifying adjustment amount is larger than or equal to the offset amount X.
The deviation correcting calculation formula, the object for controlling rotation, the solid line rotation mode, etc. may also be different according to the difference of the deviation correcting roller structure, and the detailed description will be omitted herein.
In one embodiment, the deviation correcting roller adjusts the first film and/or the second film according to the deviation amount when the deviation amount is larger than a preset threshold value.
In an embodiment of the present application, the preset threshold may be set based on a width of the first film and a width of the second film.
In particular, the preset threshold value may be set equal to one half of the difference between the first film width and the second film width. For example, the first film has a width of 500mm, the second film has a width of 600mm, and the difference between the widths of the two films is 100mm; then, the preset threshold value may be set to 50mm. When the offset is greater than 50mm, the deflection correcting roller adjusts the first film and/or the second film according to the offset.
It can be appreciated that by adopting the above scheme, the deviation correcting roller corrects the deviation only when the deviation is greater than the preset threshold, wherein the preset threshold is one half of the width difference between the first film and the second film, so that the situation that the first film and the second film are just opposite to each other (belonging to qualified lamination) and the width difference between the first film and the second film is taken as the deviation can be avoided. Further, erroneous operation of the correction roller can be avoided.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (10)
1. The film production equipment is characterized by comprising a laminating roller, CCD equipment and a deviation correcting roller;
the laminating roller is used for laminating the first film and the second film to obtain a laminated film;
the CCD device is used for acquiring the offset between the first film and the second film in the laminating film;
the deviation correcting roller is used for adjusting the first film and/or the second film according to the deviation amount so as to reduce the deviation amount between the first film and the second film.
2. The film production apparatus according to claim 1, wherein the CCD apparatus includes a first CCD device and a second CCD device;
the first CCD device is arranged at a position corresponding to the first edge of the laminating film, and the second CCD device is arranged at a position corresponding to the second edge of the laminating film.
3. The film production apparatus according to claim 2, wherein the first film is located above the second film, the first CCD device includes a first CCD camera and a first light source, and the second CCD device includes a second CCD camera and a second light source;
the first CCD camera is positioned above the first film, and the first light source is positioned below the second film;
the second CCD camera is located above the first film, and the second light source is located below the second film.
4. A film production apparatus according to claim 3, wherein the first light source comprises an LED light source or a metal halogen light source, and the second light source comprises an LED light source or a metal halogen light source.
5. The film production apparatus according to claim 1, wherein the deviation rectifying roller includes any one of a proportional deviation rectifying roller, an integral deviation rectifying roller, and a proportional integral deviation rectifying roller.
6. The film production apparatus according to claim 1, wherein the laminating roller includes a first roller and a second roller, and the first roller and the second roller are different in material.
7. The film production apparatus of claim 6, wherein the first roller is a glue roller; the second roller is a rigid roller.
8. The film production apparatus according to claim 1, further comprising an unreeling device, a first storage device, a second storage device, and a reeling device;
the deviation correcting roller is arranged between the first material storage device and the laminating roller, and the first material storage device is arranged between the deviation correcting roller and the unreeling device;
the CCD equipment is arranged between the laminating roller and the second storage device, and the second storage device is arranged between the CCD equipment and the winding device.
9. A method of producing a film using the film production apparatus according to any one of claims 1 to 8, characterized in that the method comprises:
the laminating roller is used for laminating the first film and the second film to obtain a laminated film;
the CCD equipment obtains the offset between the first film and the second film in the laminating film;
and the deviation correcting roller adjusts the first film and/or the second film according to the deviation amount so as to reduce the deviation amount between the first film and the second film.
10. The film production method according to claim 9, wherein the deviation correcting roller adjusts the first film and/or the second film according to the deviation amount in a case where the deviation amount is larger than a preset threshold value;
wherein the preset threshold is set based on the width of the first film and the width of the second film.
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