CN114455574A - Method and system for slitting and sealing roll-to-roll graphene copper foil - Google Patents
Method and system for slitting and sealing roll-to-roll graphene copper foil Download PDFInfo
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- CN114455574A CN114455574A CN202210227784.6A CN202210227784A CN114455574A CN 114455574 A CN114455574 A CN 114455574A CN 202210227784 A CN202210227784 A CN 202210227784A CN 114455574 A CN114455574 A CN 114455574A
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Abstract
The invention discloses a method and a system for slitting and sealing roll-to-roll graphene copper foil, wherein the method comprises the following steps: guiding the graphene copper foil wound on the graphene copper foil winding wheel to be loaded into a feeding guide wheel set, and enabling the feeding guide wheel set to transmit the graphene copper foil; controlling a colloid spraying device to perform colloid spraying on the graphene copper foil; controlling a copper foil laser cutting mechanism to cut the graphene; controlling a hot-pressing roller group to carry out hot-pressing sealing on the graphene copper foil and the PET film so as to enable the PET films on two sides to be tightly attached to the graphene copper foil to form a PET film-graphene copper foil-PET film structure; controlling a PET laser cutting mechanism to cut the PET film; and responding to the situation that the graphene copper foil subjected to hot-pressing sealing reaches the irradiation position of the ultraviolet lamp set curing device, and controlling the ultraviolet lamp set curing device to perform illumination curing on colloid on the graphene copper foil to obtain the PET graphene copper foil subjected to hot-pressing sealing. The invention realizes the slitting and preservation of the graphene copper foil in a roll-to-roll mode.
Description
Technical Field
The invention relates to the field of graphene production, in particular to a method and a system for slitting and sealing roll-to-roll graphene copper foil.
Background
Based on the extremely high light transmission and the excellent heat conductivity and electric conductivity of the graphene film, the graphene has wide application; for example, in the fields of touch screens and flexible displays, the transparent conductivity and flexibility of graphene play a great role in the field of flexible displays, which opens up great market competitiveness for graphene to replace Indium Tin Oxide (ITO), and has great demand for replacing ITO.
Chemical vapor deposition CVD is the method for preparing the graphene film by mass production, and the method for preparing the graphene film by CVD adopts a roll-to-roll continuous preparation mode at present, so that large-area graphene can be quickly prepared in a large scale. Of course, during the preparation process, the graphene needs to be peeled off from the copper substrate material and transferred to a target substrate for use, and this step is also called graphene transfer. The transfer is divided into two key steps: including capping films (covering target substrates) and stripping copper substrates. The graphene grows on the copper foil in a static growth mode and a dynamic growth mode, wherein the dynamic growth mode is a roll-to-roll growth mode. A layer of graphene is attached to the copper foil after roll-to-roll growth is completed, and the rolled graphene copper foil is more convenient to use in a roll-to-roll continuous transfer mode. Researchers always need to research the performance of the graphene copper foil with fixed length, and at present, the graphene copper foil slitting technology is less. For research, the graphene copper foil with a fixed length needs to be cut during transfer, and the copper foil is easy to deform and bend in the process due to experimental conditions and operation of experimenters, so that the film quality and the transfer result are affected.
Disclosure of Invention
In view of the defects of the prior art, the technical problem to be solved by the invention is to provide a method and a system for slitting and sealing rolled graphene copper foils, and aims to realize slitting and storage of the rolled graphene copper foils.
In order to achieve the above object, a first aspect of the present invention discloses a method for slitting and sealing a roll-to-roll graphene copper foil, the method comprising:
step S1, guiding the graphene copper foil wound on the graphene copper foil winding wheel to be loaded into a feeding guide wheel set, and starting the feeding guide wheel set to enable the feeding guide wheel set to transmit the graphene copper foil;
step S2, in response to the fact that the graphene copper foil reaches the spraying position of a colloid spraying device, controlling the colloid spraying device to perform colloid spraying on the graphene copper foil;
s3, responding to the first length of the graphene copper foil passing through a copper foil laser cutting mechanism, and controlling the copper foil laser cutting mechanism to cut the graphene;
step S4, before the graphene copper foil enters the hot-pressing roller set, the PET films positioned on two sides of the hot-pressing roller set are guided to the hot-pressing roller set, so that when the graphene copper foil reaches the hot-pressing roller set, the PET films already enter the hot-pressing roller set by a second length; the PET film is wound on the PET film winding wheel, and the width of the PET film is larger than that of the graphene copper foil;
step S5, controlling the hot-pressing roller set to carry out hot-pressing sealing on the graphene copper foil and the PET film so as to enable the PET films on two sides to be tightly attached to the graphene copper foil to form a PET film-graphene copper foil-PET film structure;
s6, in response to the fact that the graphene copper foil in the PET film-graphene copper foil-PET film completely passes through the PET laser cutting mechanism and continues to move for a third length, controlling the PET laser cutting mechanism to cut the PET film;
and S7, controlling the curved-surface belt pulley module to transport the graphene copper foil subjected to hot-pressing sealing, responding to the fact that the graphene copper foil subjected to hot-pressing sealing reaches the irradiation position of the ultraviolet lamp set curing device, and controlling the ultraviolet lamp set curing device to perform illumination curing on colloid on the graphene copper foil to obtain the PET graphene copper foil subjected to hot-pressing sealing.
Optionally, in the step S2, the nozzle of the colloid spraying device adopts an atomizing nozzle, the orientation of the nozzle is vertical upward, the orientation of the coating surface of the graphene copper foil is vertical downward, and the atomizing nozzle atomizes and uniformly sprays the colloid on the coating surface of the graphene copper foil.
Optionally, the colloid is a polymethyl methacrylate colloid.
Optionally, after step S2, the method further includes:
guiding the graphene copper foil through a redirection guide wheel so that the direction of the coating surface of the graphene copper foil is vertical upwards;
and controlling a hot air gun arranged above the graphene copper foil to blow and heat the colloid on the graphene copper foil so that the colloid is uniformly diffused.
Optionally, the heating temperature of the colloid on the graphene copper foil by the hot air gun is 40-70 ℃; the wind speed of the hot air gun is 1-6 m/s.
Optionally, in step S1, the outer ring of the feeding guide pulley set is covered with a plastic film, so as to avoid damaging the surface layer of the graphene copper foil.
The invention discloses a system for slitting and sealing roll-to-roll graphene copper foil, which comprises: the device comprises a graphene copper foil winding wheel, a feeding guide wheel group, a colloid spraying device, a copper foil laser cutting mechanism, a hot pressing roller group, a PET film winding wheel, a PET laser cutting mechanism, a curved surface belt pulley module and an ultraviolet lamp group curing device; the graphene copper foil winding wheel is wound with a graphene copper foil, and the PET film winding wheel is wound with a PET film;
the feeding guide wheel set is used for conveying the graphene copper foil to sequentially pass through the colloid spraying device, the copper foil laser cutting mechanism, the hot pressing roller set and the PET laser cutting mechanism; the curved belt pulley module is used for transporting the graphene copper foil cut by the PET laser cutting mechanism;
the colloid spraying device is used for responding to the situation that the graphene copper foil reaches the spraying position of the colloid spraying device and performing colloid spraying on the graphene copper foil;
the copper foil laser cutting mechanism is used for responding to the first length of the graphene copper foil passing through the copper foil laser cutting mechanism and cutting the graphene;
the hot-pressing roller set is used for carrying out hot-pressing sealing on the graphene copper foil and the PET film so as to enable the PET films on two sides to be tightly attached to the graphene copper foil to form a PET film-graphene copper foil-PET film structure; before the graphene copper foil enters the hot-pressing roller group, PET films positioned on two sides of the hot-pressing roller group are guided to the hot-pressing roller group, so that when the graphene copper foil reaches the hot-pressing roller group, the PET films already enter the hot-pressing roller group by a second length;
the PET laser cutting mechanism is used for responding to the fact that the graphene copper foil in the PET film-graphene copper foil-PET film completely passes through the PET laser cutting mechanism and continues to move for a third length, and cutting the PET film;
and the ultraviolet lamp set curing device is used for responding to the situation that the graphene copper foil subjected to hot-pressing sealing reaches the irradiation position of the ultraviolet lamp set curing device, and performing illumination curing on colloid on the graphene copper foil to obtain the PET graphene copper foil subjected to hot-pressing sealing.
Optionally, when carrying out colloid spraying on the graphene, the nozzle of the colloid spraying device adopts an atomizing nozzle and has vertical upward orientation, the orientation of the coating surface of the graphene copper foil is vertical downward, and the atomizing nozzle is used for atomizing and uniformly spraying the colloid on the coating surface of the graphene copper foil.
Optionally, the system further includes: a redirection guide wheel and a hot air gun;
the redirection guide wheel is used for guiding the graphene copper foil so that the coating surface of the graphene copper foil faces vertically upwards;
the hot air gun is used for blowing and heating the colloid on the graphene copper foil to enable the colloid to be uniformly diffused.
Optionally, the heating temperature of the colloid on the graphene copper foil by the hot air gun is 40-70 ℃; the wind speed of the hot air gun is 1-6 m/s.
Optionally, the outer ring of the feeding guide wheel set is coated with a plastic film, so that the surface layer of the graphene copper foil is prevented from being damaged.
The invention has the beneficial effects that: 1. according to the invention, the graphene copper foil is sealed in the PET film in a roll-to-roll mode, and the colloid is uniformly sprayed and cured on one surface of the graphene to be transferred, and then the graphene copper foil is cured by hot pressing for reinforcement. Isolated the air through the PET membrane, realized that the graphite alkene copper foil is difficult for receiving air oxidation, the influence of deformation is avoided to the removal process copper foil, easily transports, and has reduced the deflection of shearing process copper foil greatly. And when using, can directly cut the required size graphite alkene copper foil and carry out the sculpture step, as long as tear one side PET layer can, simplify the rubber coating curing process that shifts, make things convenient for the researcher to use. 2. When the colloid is sprayed, the nozzle of the colloid spraying device adopts an atomizing nozzle, the direction of the nozzle is vertical upwards, the direction of the coating surface of the graphene copper foil is vertical downwards, and the atomizing nozzle atomizes the colloid and uniformly sprays the colloid on the coating surface of the graphene copper foil. Has the following advantages: firstly, adopt the atomizing spraying can effectively reduce the impact force of colloid to graphite alkene copper foil, avoid the quality of graphite alkene copper foil to receive the injury, damage even. Secondly, through adopting the spraying that makes progress, reduce the gravity of spraying downwards and accelerate and carry out the dynamics of strikeing the destruction to graphite alkene copper foil, also can avoid graphite alkene copper foil's quality to receive the injury. 3. The method guides the graphene copper foil through the redirection guide wheel so that the direction of the coated surface of the graphene copper foil is vertical upwards; and controlling a hot air gun arranged above the graphene copper foil to blow and heat the colloid on the graphene copper foil so as to uniformly diffuse the colloid. The colloid is uniformly diffused by heating the breeze of a hot air gun, so that the uniform diffusion of the atomized and sprayed colloid is improved, the diffusion speed is improved by heating, and the breeze is adopted to reduce the impact damage to the surface of the graphene copper foil. In conclusion, the graphene copper foil is cut and stored in a roll-to-roll mode.
Drawings
Fig. 1 is a schematic flow chart of a method for slitting and sealing a roll-to-roll graphene copper foil according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a system for slitting and sealing a roll-to-roll graphene copper foil according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a graphene copper foil after being sealed according to an embodiment of the present invention.
Detailed Description
The invention discloses a method and a system for slitting and sealing roll-to-roll graphene copper foil, and a person skilled in the art can use the contents for reference and appropriately improve technical details to realize the slitting and sealing. It is expressly intended that all such similar substitutes and modifications which would be obvious to one skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
The applicant researches and discovers that: the slitting technology of the graphene copper foil is less. For research, the graphene copper foil with a fixed length needs to be cut during transfer, and the copper foil is easy to deform and bend in the process due to experimental conditions and operation of experimenters, so that the film quality and the transfer result are affected. In addition, in the research process, the existing spraying technology is easy to damage the graphene copper foil due to overlarge impact force when the PMMA glue is sprayed on the graphene copper foil, so that the quality of the graphene copper foil is reduced.
Therefore, an embodiment of the present invention provides a method for slitting and sealing a roll-to-roll graphene copper foil, as shown in fig. 1, the method includes:
step S1: and guiding the graphene copper foil wound on the graphene copper foil winding wheel to be loaded into the feeding guide wheel set, and starting the feeding guide wheel set to enable the feeding guide wheel set to transmit the graphene copper foil.
It should be noted that the feeding guide wheel set is driven by a motor and is used for conveying by rotating and clamping the graphene copper foil.
In one embodiment, the outer ring of the feeding guide wheel set is coated with a plastic film to avoid damaging the surface layer of the graphene copper foil.
Step S2: and controlling the colloid spraying device to carry out colloid spraying on the graphene copper foil in response to the fact that the graphene copper foil reaches the spraying position of the colloid spraying device.
Optionally, the colloid is liquid at room temperature, or a colloid having a certain fluidity.
Further, the colloid is polymethyl methacrylate (PMMA) glue, which is abbreviated as PMMA colloid. The covalent bonds between the atoms forming the PMMA polymer can be broken by high energy radiation. Thus, PMMA is sensitive to radiation of wavelengths of 1nm or less and to electron radiation of energies of 20keV or more. Based on this photosensitive property, PMMA or similar polymers can be used as a photoresist in a photolithography process, which is called PMMA e-beam resist.
In a specific embodiment, in step S2, the nozzle of the colloid spraying device is an atomizing nozzle and is oriented vertically upward, the graphene copper foil coated surface is oriented vertically downward, and the atomizing nozzle atomizes and uniformly sprays the colloid on the graphene copper foil coated surface.
The use of atomizing nozzles and vertical upward spraying has two benefits: first, atomizing nozzle can be with the colloid atomizing, then spray to graphite alkene copper foil coating surface, compares in prior art, can effectively reduce the colloid to the impact force of graphite alkene copper foil, avoids graphite alkene to damage, reduces the quality. The vertical upwards spraying of second reduces, avoids the gravity of spraying downwards to accelerate and carry out the dynamics of strikeing the destruction to graphene copper foil, also can avoid graphene copper foil's quality to receive the injury.
Further, after step S2, the method further includes:
guiding the graphene copper foil through a redirection guide wheel so that the coating surface of the graphene copper foil faces vertically upwards;
and controlling a hot air gun arranged above the graphene copper foil to blow and heat the colloid on the graphene copper foil so as to uniformly diffuse the colloid.
The colloid is uniformly diffused by adopting the breeze heating of a hot air gun, so that the uniform diffusion of the atomized and sprayed colloid is improved on one hand, the diffusion speed is improved by heating, and on the other hand, the breeze is adopted to reduce the impact damage to the surface of the graphene copper foil.
Specifically, the heating temperature of the hot air gun to the colloid on the graphene copper foil is 40-70 ℃; the wind speed of the hot air gun is 1m/s-6 m/s.
The colloid is vertically sprayed upwards through the atomizing nozzle, and the impact damage to the graphene copper foil in the production process can be effectively avoided through the hot air gun, so that the quality of the graphene is improved.
In this embodiment, only the graphene on the copper foil on one side is subjected to the glue homogenizing treatment, that is, the transferred graphene is the graphene on the copper foil on one side subjected to the glue homogenizing treatment, and the graphene on the other side is not subjected to the treatment.
Step S3: and responding to the first length of the graphene copper foil passing through the copper foil laser cutting mechanism, and controlling the copper foil laser cutting mechanism to cut the graphene.
The first length is set as required, and the length of the graphene copper foil included in each of the PET graphene copper foils subjected to the heat sealing is the first length.
It is worth mentioning that. Under the condition of not influencing other actions, the copper foil cutting opening is arranged above the hot-pressing roller group as much as possible. The phenomenon that the copper foil is too long to be bent and deformed downwards due to gravity and the graphene transfer effect is affected is avoided.
Step S4: before the graphene copper foil enters the hot-pressing roller group, the PET films on two sides of the hot-pressing roller group are guided to the hot-pressing roller group, so that when the graphene copper foil reaches the hot-pressing roller group, the PET films already enter the hot-pressing roller group for the second length.
The PET film is wound on the PET film winding wheel, and the width of the PET film is larger than that of the graphene copper foil. The PET film is a packaging film with relatively comprehensive performance. The transparency is good and the gloss is good; the air tightness and the fragrance retention are good;
the two PET films on two sides are firstly pressed in a hot-pressing roller set, so that the heads of the two PET films are attached together, and the graphene copper foil enters an interlayer formed by the two PET films, so that the graphene copper foil is not exposed in the air. The width of the PET film is larger than that of the graphene copper foil, so that the graphene copper foil can be wrapped by the PET film when the PET film is pressed.
Step S5: and controlling a hot-pressing roller set to carry out hot-pressing sealing on the graphene copper foil and the PET film so as to enable the PET films on two sides to be tightly attached to the graphene copper foil, thereby forming a structure of the PET film-graphene copper foil-PET film.
Step S6: and controlling the PET laser cutting mechanism to cut the PET film in response to the fact that the graphene copper foil in the PET film-graphene copper foil-PET film completely passes through the PET laser cutting mechanism and continues to move for a third length.
It should be noted that in response to the fact that the graphene copper foil in the PET film-graphene copper foil-PET film completely passes through the PET laser cutting mechanism and continues to move for the third length, the graphene copper foil is cut, and the tail of the graphene copper foil can be wrapped by the PET film.
The step S4-the step S6 ensure that the length and the width of the PET film are both larger than those of the graphene copper foil, the head, the tail and the side of the graphene can be completely wrapped, and air is isolated to avoid oxidation.
The cross section of the graphene copper foil formed in the steps S4-S6 is shown in fig. 3, and includes: a PET film 301 wrapped on the outside, and a graphene copper foil 302 wrapped.
Optionally, the copper foil laser cutting mechanism used in step S3 and the PET laser cutting mechanism used in step S6 both include: the laser cutting machine and the laser energy absorption plate are arranged oppositely. The laser energy absorbing plate ensures that after laser cutting of the copper foil, the remaining energy damages other parts.
Optionally, after the cutting in step S6, the graphene copper foil is clamped by a discharge guide wheel and the sealed graphene copper foil is conveyed downwards at a speed, so as to prevent the free falling body of the graphene copper foil from falling downwards.
And S7, controlling the curved-surface belt pulley module to transport the hot-pressed and sealed graphene copper foil, responding to the situation that the hot-pressed and sealed graphene copper foil reaches the irradiation position of the ultraviolet lamp group curing device, and controlling the ultraviolet lamp group curing device to perform illumination curing on colloid on the graphene copper foil to obtain the hot-pressed and sealed PET graphene copper foil.
Optionally, the ultraviolet lamp set curing device adopts a high-power ultraviolet lamp to accelerate curing.
In this embodiment, preferably, the linear speeds of the feeding guide wheel, the hot-pressing roller group and the discharging guide wheel are consistent, so that the sample is prevented from wrinkling in the cutting and advancing processes.
More preferably, the driving device of the present embodiment is in a pause state each time the graphene copper foil or the PET film is cut, so as to ensure flatness of the cut. The feeding roller and the PET rolling wheel set at the installation position of the graphene copper foil are driven wheels, the discharging guide wheel pulls the copper foil and the PET through the feeding guide wheel and the hot pressing roller set, and the copper foil and the PET film are enabled to be better in smoothness in the supply process due to certain friction resistance of the wheel sliding mechanism.
In the embodiment, the laser cutting devices are all movable devices, and linear cutting is completed by means of linear movement of the laser cutting equipment along the guide rail.
According to the method for slitting and sealing the roll-to-roll graphene copper foil provided by the embodiment, the embodiment of the invention also provides a system for slitting and sealing the roll-to-roll graphene copper foil, and the system is suitable for the embodiment of the method and comprises the following steps as shown in fig. 2: the device comprises a graphene copper foil winding wheel 201, a feeding guide wheel set 202, a colloid spraying device 203, a copper foil laser cutting mechanism 204, a hot pressing roller set 205, a PET film winding wheel 206, a PET laser cutting mechanism 207, a curved belt pulley module 208 and an ultraviolet lamp set curing device 209; the graphene copper foil winding wheel 201 is wound with a graphene copper foil, and the PET film winding wheel 206 is wound with a PET film;
the feeding guide wheel set 202 is used for conveying the graphene copper foil to sequentially pass through the colloid spraying device 203, the copper foil laser cutting mechanism 204, the hot pressing roller set 205 and the PET laser cutting mechanism 207; the curved belt pulley module 208 is used for transporting the graphene copper foil cut by the PET laser cutting mechanism 207;
the colloid spraying device 203 is used for responding to the situation that the graphene copper foil reaches the spraying position of the colloid spraying device 203, and performing colloid spraying on the graphene copper foil;
the copper foil laser cutting mechanism 204 is used for cutting the graphene in response to the first length of the graphene copper foil passing through the copper foil laser cutting mechanism 204;
the hot-pressing roller set 205 is used for performing hot-pressing sealing on the graphene copper foil and the PET film so as to enable the PET films on the two sides to be tightly attached to the graphene copper foil to form a PET film-graphene copper foil-PET film structure; before the graphene copper foil enters the hot-pressing roller group 205, the PET films positioned on two sides of the hot-pressing roller group 205 are guided to the hot-pressing roller group 205, so that when the graphene copper foil reaches the hot-pressing roller group 205, the PET films already enter the hot-pressing roller group 205 by a second length;
the PET laser cutting mechanism 207 is used for responding that the graphene copper foil in the PET film-graphene copper foil-PET film completely passes through the PET laser cutting mechanism 207 and continues to move for a third length, and cutting the PET film;
ultraviolet banks solidification equipment 209 for the graphite alkene copper foil after responding to the hot-pressing sealing arrives the irradiation position of ultraviolet banks solidification equipment 209, carries out the illumination solidification to the colloid on the graphite alkene copper foil, obtains the PET graphite alkene copper foil of hot-pressing sealing.
Optionally, when carrying out the colloid spraying to graphite alkene, colloid spraying device 203's nozzle adopts atomizing nozzle and orientation to be vertical upwards, and graphite alkene copper foil coating face's orientation is vertical downwards, and atomizing nozzle is used for atomizing and evenly spraying the colloid on graphite alkene copper foil coating face.
Optionally, the system further comprises: a redirection guide wheel 210 and a hot air gun 211;
the redirection guide wheel 210 is used for guiding the graphene copper foil so that the direction of the coated surface of the graphene copper foil is vertical upwards;
and the hot air gun 211 is used for blowing and heating the colloid on the graphene copper foil to uniformly diffuse the colloid.
Optionally, the heating temperature of the colloid on the graphene copper foil by the hot air gun 211 is 40-70 ℃; the wind speed of the hot air gun 211 is 1m/s-6 m/s.
Optionally, the outer ring of the feeding guide wheel set 202 is coated with a plastic film, so that the surface layer of the graphene copper foil is prevented from being damaged.
Optionally, the system further includes: a discharge guide wheel 212 is provided below the hot press roller group 205 for gripping and conveying the encapsulated copper foil downward at a speed to prevent the copper foil from falling freely.
According to the embodiment of the invention, the graphene copper foil is sealed in the PET film in a roll-to-roll mode, colloid is uniformly sprayed on one surface of the graphene to be transferred and is cured, and then the graphene copper foil is cured by hot pressing for reinforcement. Isolated the air through the PET membrane, realized that graphite alkene copper foil is difficult for receiving air oxidation, the influence of deformation is avoided to the removal process copper foil, easily transports, and has reduced the deflection of shearing process copper foil greatly. And when using, can directly cut the required size graphite alkene copper foil and carry out the sculpture step, as long as tear one side PET layer can, simplify the rubber coating curing process that shifts, make things convenient for the researcher to use. In the embodiment of the invention, when colloid is sprayed, the nozzle of the colloid spraying device 203 adopts an atomizing nozzle, the direction of the nozzle is vertical upwards, the direction of the coating surface of the graphene copper foil is vertical downwards, and the atomizing nozzle atomizes and uniformly sprays colloid on the coating surface of the graphene copper foil. Has the following advantages: firstly, adopt the atomizing spraying can effectively reduce the impact force of colloid to graphite alkene copper foil, avoid the quality of graphite alkene copper foil to receive the injury, damage even. Secondly, through adopting the spraying that makes progress, reduce the gravity of spraying downwards and accelerate and carry out the dynamics of strikeing the destruction to graphite alkene copper foil, also can avoid graphite alkene copper foil's quality to receive the injury. According to the embodiment of the invention, the graphene copper foil is guided by the redirection guide wheel 210, so that the coating surface of the graphene copper foil faces vertically upwards; and controlling a hot air gun 211 arranged above the graphene copper foil to blow and heat the colloid on the graphene copper foil so that the colloid is uniformly diffused. The colloid is uniformly diffused by heating the breeze of the hot air gun 211, so that the uniform diffusion of the atomized and sprayed colloid is improved, the diffusion speed is improved by heating, and the breeze is adopted to reduce the impact damage to the surface of the graphene copper foil. In summary, the embodiment of the invention realizes slitting and storage of the graphene copper foil in a roll-to-roll manner.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A method for slitting and sealing roll-to-roll graphene copper foil is characterized by comprising the following steps:
step S1, guiding the graphene copper foil wound on the graphene copper foil winding wheel to be loaded into a feeding guide wheel set, and starting the feeding guide wheel set to enable the feeding guide wheel set to transmit the graphene copper foil;
step S2, in response to the fact that the graphene copper foil reaches the spraying position of a colloid spraying device, controlling the colloid spraying device to perform colloid spraying on the graphene copper foil;
s3, responding to the first length of the graphene copper foil passing through a copper foil laser cutting mechanism, and controlling the copper foil laser cutting mechanism to cut the graphene;
step S4, before the graphene copper foil enters the hot-pressing roller set, the PET films positioned on two sides of the hot-pressing roller set are guided to the hot-pressing roller set, so that when the graphene copper foil reaches the hot-pressing roller set, the PET films already enter the hot-pressing roller set by a second length; the PET film is wound on the PET film winding wheel, and the width of the PET film is larger than that of the graphene copper foil;
step S5, controlling the hot-pressing roller set to carry out hot-pressing sealing on the graphene copper foil and the PET film so as to enable the PET films on two sides to be tightly attached to the graphene copper foil to form a PET film-graphene copper foil-PET film structure;
s6, in response to the fact that the graphene copper foil in the PET film-graphene copper foil-PET film completely passes through the PET laser cutting mechanism and continues to move for a third length, controlling the PET laser cutting mechanism to cut the PET film;
and S7, controlling the curved-surface belt pulley module to transport the graphene copper foil subjected to hot-pressing sealing, responding to the fact that the graphene copper foil subjected to hot-pressing sealing reaches the irradiation position of the ultraviolet lamp set curing device, and controlling the ultraviolet lamp set curing device to perform illumination curing on colloid on the graphene copper foil to obtain the PET graphene copper foil subjected to hot-pressing sealing.
2. The method for slitting and sealing a roll-to-roll graphene copper foil according to claim 1, wherein in the step S2, the nozzle of the colloid spraying device is an atomizing nozzle and is oriented vertically upward, the graphene copper foil coated surface is oriented vertically downward, and the atomizing nozzle atomizes and uniformly sprays the colloid on the graphene copper foil coated surface.
3. The method for slitting and sealing a roll-to-roll graphene copper foil according to claim 2, wherein after step S2, the method further comprises:
guiding the graphene copper foil through a redirection guide wheel so that the direction of the coating surface of the graphene copper foil is vertical upwards;
and controlling a hot air gun arranged above the graphene copper foil to blow and heat the colloid on the graphene copper foil so that the colloid is uniformly diffused.
4. The method for slitting and sealing the roll-to-roll graphene copper foil according to claim 3, wherein the colloid on the graphene copper foil is heated by the heat gun at a temperature of 40 ℃ to 70 ℃; the wind speed of the hot air gun is 1-6 m/s.
5. The method for slitting and storing the roll-to-roll graphene copper foil according to claim 1, wherein in the step S1, the outer ring of the feeding guide wheel set is covered with a plastic film to avoid damaging the surface layer of the graphene copper foil.
6. A system for cutting and sealing roll-to-roll graphene copper foil, characterized in that, the system includes: the device comprises a graphene copper foil winding wheel, a feeding guide wheel group, a colloid spraying device, a copper foil laser cutting mechanism, a hot pressing roller group, a PET film winding wheel, a PET laser cutting mechanism, a curved surface belt pulley module and an ultraviolet lamp group curing device; the graphene copper foil winding wheel is wound with a graphene copper foil, and the PET film winding wheel is wound with a PET film;
the feeding guide wheel set is used for conveying the graphene copper foil to sequentially pass through the colloid spraying device, the copper foil laser cutting mechanism, the hot pressing roller set and the PET laser cutting mechanism; the curved belt pulley module is used for transporting the graphene copper foil cut by the PET laser cutting mechanism;
the colloid spraying device is used for responding to the situation that the graphene copper foil reaches the spraying position of the colloid spraying device and performing colloid spraying on the graphene copper foil;
the copper foil laser cutting mechanism is used for responding to the first length of the graphene copper foil passing through the copper foil laser cutting mechanism and cutting the graphene;
the hot-pressing roller set is used for carrying out hot-pressing sealing on the graphene copper foil and the PET film so as to enable the PET films on two sides to be tightly attached to the graphene copper foil to form a PET film-graphene copper foil-PET film structure; before the graphene copper foil enters the hot-pressing roller group, PET films positioned on two sides of the hot-pressing roller group are guided to the hot-pressing roller group, so that when the graphene copper foil reaches the hot-pressing roller group, the PET films already enter the hot-pressing roller group by a second length;
the PET laser cutting mechanism is used for responding to the fact that the graphene copper foil in the PET film-graphene copper foil-PET film completely passes through the PET laser cutting mechanism and continues to move for a third length, and cutting the PET film;
and the ultraviolet lamp set curing device is used for responding to the situation that the graphene copper foil subjected to hot-pressing sealing reaches the irradiation position of the ultraviolet lamp set curing device, and performing illumination curing on colloid on the graphene copper foil to obtain the PET graphene copper foil subjected to hot-pressing sealing.
7. The system for slitting and sealing roll-to-roll graphene copper foils according to claim 6, wherein when the graphene is subjected to colloid spraying, a nozzle of the colloid spraying device adopts an atomizing nozzle and is oriented vertically upward, a coating surface of the graphene copper foil is oriented vertically downward, and the atomizing nozzle is used for atomizing and uniformly spraying the colloid on the coating surface of the graphene copper foil.
8. The system for slitting and sealing roll-to-roll graphene copper foil according to claim 7, further comprising: a redirection guide wheel and a hot air gun;
the redirection guide wheel is used for guiding the graphene copper foil so that the coating surface of the graphene copper foil faces vertically upwards;
the hot air gun is used for blowing and heating the colloid on the graphene copper foil to enable the colloid to be uniformly diffused.
9. The system for slitting and sealing a roll-to-roll graphene copper foil according to claim 8, wherein the colloid on the graphene copper foil is heated by the heat gun at a temperature of 40 ℃ to 70 ℃; the wind speed of the hot air gun is 1-6 m/s.
10. The system for slitting and sealing roll-to-roll graphene copper foils according to claim 6, wherein the outer ring of the feeding guide wheel set is wrapped with a plastic film to avoid damaging the surface layer of the graphene copper foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210227784.6A CN114455574A (en) | 2022-03-10 | 2022-03-10 | Method and system for slitting and sealing roll-to-roll graphene copper foil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210227784.6A CN114455574A (en) | 2022-03-10 | 2022-03-10 | Method and system for slitting and sealing roll-to-roll graphene copper foil |
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| Publication Number | Publication Date |
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| CN114455574A true CN114455574A (en) | 2022-05-10 |
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| CN202210227784.6A Withdrawn CN114455574A (en) | 2022-03-10 | 2022-03-10 | Method and system for slitting and sealing roll-to-roll graphene copper foil |
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| Country | Link |
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| CN (1) | CN114455574A (en) |
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