Utility model content
The application is intended to provide a kind of roll-to-roll coating apparatus of substrate, to improve the quality of finished product proton membrane.
This application provides a kind of roll-to-roll coating apparatus of substrate, comprising:
Substrate unwinding device, for being spaced the release substrate of preset time;
First apparatus for coating comprising: the first vacuum absorbing platform and be arranged on the first vacuum absorbing platform first
Coating mechanism;Reverse side of first vacuum absorbing platform for adsorption substrates within a preset time;First coating mechanism
For the front coating sizing-agent within a preset time to substrate, to form face-coating;
Second apparatus for coating comprising: the second vacuum absorbing platform and be arranged on the second vacuum absorbing platform second
Coating mechanism;Front of second vacuum absorbing platform for adsorption substrates within a preset time;Second coating mechanism
For the reverse side coating sizing-agent within a preset time to substrate, to form reverse side coating;
Base material winding device, for being spaced the winding substrate of preset time;
The surface of first vacuum absorbing platform and second vacuum absorbing platform, which is both provided with, is laid in respective table
The equalizing press layer of adsorption capacity of the face for uniformly respectively generating.
The roll-to-roll coating apparatus, wherein first vacuum absorbing platform and second vacuum absorbing platform
It include: that be provided with multiple adsorption holes on respective surface, and respective internal cavity is set;The cavity and the multiple suction
Attached hole connection, and the external vacuum equipment of the cavity;Described in the multiple adsorption hole is used to generate under the action of vacuum equipment
Adsorption capacity.
The roll-to-roll coating apparatus, wherein first vacuum absorbing platform and second vacuum absorbing platform
Further include: respective internal dry component is set;Dry component on first vacuum absorbing platform is used for described
Face-coating is dried, and the dry component on second vacuum absorbing platform is for being dried the reverse side coating.
The roll-to-roll coating apparatus, wherein first vacuum absorbing platform and second vacuum absorbing platform
Further include: the pressing assembly of respective surrounding is set;Pressing assembly on first vacuum absorbing platform is for pressing
The front edge of substrate, the pressing assembly on second vacuum absorbing platform are used to press the opposite longitudinal side edge of substrate.
The roll-to-roll coating apparatus, wherein front protecting film wrap-up and reverse side protective film wrap-up;It is described
The front of substrate is provided with front protecting film, and reverse side is provided with reverse side protective film;The front protecting film wrap-up is used for
Be coated with before the face-coating, remove and wind the front protecting film, setting the substrate unwinding device with it is described
Between first apparatus for coating;The reverse side protective film wrap-up is used for before being coated with the reverse side coating, is removed and is wound
The reverse side protective film is arranged between first apparatus for coating and second apparatus for coating.
The roll-to-roll coating apparatus, wherein further include: front protecting film unwinding device and reverse side protective film unreel dress
It sets;The front protecting film unwinding device is arranged for discharging front protecting film to the surface of the face-coating described
Between reverse side protective film wrap-up and second apparatus for coating;The reverse side protective film unwinding device is for discharging reverse side guarantor
Cuticula is arranged between second apparatus for coating and the base material winding device to the surface of the reverse side coating.
The roll-to-roll coating apparatus, wherein the first precompressed roller mechanism and the second precompressed roller mechanism;First precompressed
Roller mechanism is used to carry out precompressed to the face-coating;The second precompressed roller mechanism is used to carry out the reverse side coating pre-
Pressure.
The roll-to-roll coating apparatus, wherein the first precompressed roller mechanism and the second precompressed roller mechanism include one
The pony press to connect to roll surface.
The roll-to-roll coating apparatus, wherein first coating mechanism and second coating mechanism include: mould
Head, for quantitatively feeding the feeding machanism of slurry to die head, for driving the component that drives upside down that the die head moves up and down, and
For driving the mobile driven in translation component to be coated with of the die head;The die head has for the feed inlet and use into slurry
In the discharge port for spraying slurry, the feeding machanism is connected to the feed inlet;Die head on first coating mechanism goes out
Material mouth is right against the surface of first vacuum absorbing platform, and the discharge port of the die head on second coating mechanism is right against institute
State the surface of the second vacuum absorbing platform.
The roll-to-roll coating apparatus, wherein the width of the substrate is greater than first vacuum absorbing platform and institute
State the width of the second vacuum absorbing platform.
The beneficial effects of the utility model are:
A kind of roll-to-roll coating apparatus of substrate provided by the present application, comprising: substrate unwinding device, when for being spaced default
Between release substrate;First apparatus for coating comprising: the first vacuum absorbing platform and it is arranged on the first vacuum absorbing platform
First coating mechanism;Reverse side of first vacuum absorbing platform for adsorption substrates within a preset time;First coating
Mechanism is used within a preset time to the front coating sizing-agent of substrate, to form face-coating;Second apparatus for coating comprising:
Second vacuum absorbing platform and the second coating mechanism being arranged on the second vacuum absorbing platform;Second vacuum absorbing platform
Front for adsorption substrates within a preset time;Second coating mechanism is within a preset time applying the reverse side of substrate
Cloth slurry, to form reverse side coating;Base material winding device, for being spaced the winding substrate of preset time;First vacuum is inhaled
The surface of attached platform and second vacuum absorbing platform, which is both provided with, is laid in respective surface for the uniform suction that respectively generates
The equalizing press layer of attached power.In this coating apparatus, all it is arranged on the surface of the first vacuum absorbing platform and the second vacuum absorbing platform
Pressurized layer prevents substrate under the action of excessive adsorption capacity so that the surface of equalizing press layer generates balanced adsorption capacity adsorption substrates
The phenomenon that generating pit, improves product quality.
Specific embodiment
The application is described in further detail below by specific embodiment combination attached drawing.
This application provides a kind of roll-to-roll coating apparatus of substrate, for fuel cell cell nafion proton membrane just
Face and reverse side are coated, i.e., the substrate is cell nafion proton membrane, and the slurry being coated with is platinum carbon catalyst.
Shown in Figure 1, roll-to-roll coating apparatus provided in this embodiment includes: substrate unwinding device 10, the first coating
Device 20, the second apparatus for coating 30 and base material winding device 40.
10 blowing substrate coiled strip of substrate unwinding device, the substrate coiled strip unreeled out successively the first apparatus for coating of threading 20,
It after two apparatus for coating 30, is wound by base material winding device 40, the tractive force of substrate transmission is provided by base material winding device 40.Substrate
Unwinding device 10 is used to be spaced the release substrate of preset time, and the first apparatus for coating 20 is used for the reverse side of adsorption substrates, to base
The front coating sizing-agent of material, the second apparatus for coating 30 are used for the front of adsorption substrates, with the reverse side coating sizing-agent to substrate, substrate
Wrap-up 40 is used to be spaced the substrate after the winding coating of preset time.In other words, substrate unwinding device 10 is at interval of pre-
If discharging the substrate of certain length after the time, to substrate (this of the certain length after the preset time of the interval of base material winding device 40
Shi Jicai is the finished product substrate after coating sizing-agent) it is wound, in the preset time, substrate unwinding device 10 and substrate winding
Device 40 stops working.Base under the action of tractive force, between substrate unwinding device 10 and base material winding device 40
Material is successively transferred into the first apparatus for coating 20 and the second apparatus for coating 30, on the first apparatus for coating 20 to substrate front into
Row coating;After the coating of front, substrate is transmitted to the second apparatus for coating 30 under the action of tractive force, right by the second apparatus for coating 30
The reverse side of substrate is coated, to form finished product substrate.
Substrate unwinding device 10, for being spaced the release substrate of preset time, in other words, substrate unwinding device 10 is one
After secondary release substrate coiled strip, substrate coiled strip is discharged next time after being spaced preset time, substrate unwinding device 10 is to utilize to put
The mode of volume blowing discharges substrate coiled strip, and the length for the substrate that substrate unwinding device 10 once discharges is according to substrate unwinding device
Time between revolving speed and the adjacent process of release twice is set.Substrate unwinding device 10 is once and the substrate that discharges next time
The length of coiled strip can be it is the same, be also possible to it is different, as preferred embodiment, the length substrate that discharges every time
Unanimously.
In the present embodiment, substrate unwinding device 10 further include: the deviation correction mechanism for rectifying a deviation to substrate, and for controlling base
The tension control mechanism of material tension.Deviation correction mechanism and tension control mechanism are all disposed within the output end of substrate unwinding device 10.
First apparatus for coating 20 comprising: the first vacuum absorbing platform 21 and setting are on the first vacuum absorbing platform 21
The first coating mechanism 22.It is both provided at the both ends of 21 length direction of the first vacuum absorbing platform and crosses roller for substrate punishment in advance,
Two cross rollers substantially with the surface of the first vacuum absorbing platform 21 in the same plane.First vacuum absorbing platform 21 is used for pre-
If the reverse side of adsorption substrates in the time, the first coating mechanism 22 within a preset time to the front coating sizing-agent of substrate, with
Form face-coating.Particularly, the first vacuum absorbing platform 21 generates adsorption capacity within a preset time, with the anti-of adsorption substrates
Face.Once after the substrate of release certain length, the substrate of the certain length is led substrate unwinding device 10 in base material winding device 40
It is sent under the action of gravitation on the first vacuum absorbing platform 21, is adsorbed within a preset time by the first vacuum absorbing platform 21
Its reverse side, meanwhile, the first coating mechanism 22 is within a preset time coated its front, to form face-coating.
Second apparatus for coating 30 comprising: the second vacuum absorbing platform 31 and setting are on the second vacuum absorbing platform 31
The second coating mechanism 32.It is similarly both provided at the both ends of 31 length direction of the second vacuum absorbing platform for substrate punishment in advance
Cross roller, two cross rollers equally substantially with the surface of the second vacuum suction plane 31 in the same plane.Second vacuum absorbing platform
31 front for adsorption substrates within a preset time, the second coating mechanism 32 is within a preset time applying the reverse side of substrate
Cloth slurry, to form reverse side coating.Particularly, the first vacuum absorbing platform 21 generates adsorption capacity within a preset time, to inhale
The front of attached substrate.Under the action of 40 tractive force of base material winding device, the substrate for being coated with face-coating is transmitted to second very
On empty absorption platform 31, its front is adsorbed by the second vacuum absorbing platform 31 within a preset time, meanwhile, the second coating mechanism 32
Its reverse side is coated within a preset time, to form reverse side coating.
As above, the surface of the first vacuum absorbing platform 21 and the second vacuum absorbing platform 31, which is both provided with, is laid in respective table
Equalizing press layer of the face for uniformly respective generated adsorption capacity, the equalizing press layer are preferably mesh-like film, and mesh-like film is equal
Even formation has multiple tiny holes, the warp of adsorption capacity caused by the first vacuum absorbing platform 21 and the second vacuum absorbing platform 31
Behind multiple tiny holes of silk rolling reticulated film, uniform adsorption effect is formed on the surface of mesh-like film, due to this implementation
Base material thickness in example is very thin, and about 10~50um is thick, which avoids in adsorption substrates, and substrate is made to generate pit
And influence product quality.
In the present embodiment, the first coating mechanism 22 to substrate front coating face-coating after and the second coating machine
It after structure 32 is coated with reverse side coating to the reverse side of substrate, also needs to carry out precompressed to face-coating and reverse side coating, makes itself and substrate jail
Solid combination, the phenomenon that avoiding the occurrence of picking.Therefore, coating apparatus provided by the present embodiment further include: the first pony press machine
Structure 91 and the second precompressed roller mechanism 92, the first precompressed roller mechanism 91 are used for face-coating and base material pressing, the second pony press machine
Structure 92 is used for reverse side coating and base material pressing, and two precompressed roller mechanisms are that precompressed is carried out by way of roll-in.Preferably,
First precompressed roller mechanism 91 and the second precompressed roller mechanism 92 include the pony press that a pair of of roll surface connects, the first precompressed roller mechanism 91
In one of pony press be the first vacuum absorbing platform 21 along substrate direction of transfer one end cross roller, the second precompressed roller mechanism
One of pony press in 92 crosses roller along substrate direction of transfer one end for the second vacuum absorbing platform 31.
Base material winding device 40, for being spaced the winding substrate of preset time, i.e., when the interval of base material winding device 40 is default
Between winding be coated with the finished product substrate of face-coating and reverse side coating.It is wound by the way of winding rewinding.
In the transmit process of substrate, for the reverse side for making 21 adsorption substrates of the first vacuum absorbing platform, the second vacuum suction
The front of 31 adsorption substrates of platform, in present embodiment, the first vacuum absorbing platform 21 and the second about 31 vacuum absorbing platform
Position setting, as shown in fig. 1, the lower section of the second vacuum absorbing platform 31 is arranged in the first vacuum absorbing platform 21, and first
Twist rollers 33, transmission of the substrate through twist rollers 33 is arranged in the same side of vacuum absorbing platform 21 and the second vacuum absorbing platform 31
Afterwards, overturn the obverse and reverse of substrate, to apply on the second vacuum absorbing platform 31 to the reverse side of substrate
Cloth.
In the present embodiment, the first vacuum absorbing platform 21 is identical with the structure of the second vacuum absorbing platform 31, below with
It is illustrated for one vacuum absorbing platform 21.
Shown in referring to fig. 2, the first vacuum absorbing platform 21 includes: the multiple adsorption holes 25 for being provided with its surface, setting
Cavity 26 and dry component 27 inside it, and the pressing assembly 24 of its surrounding is set.
Cavity 26 is connected to multiple adsorption holes 25, and the external vacuum equipment of cavity 25, vacuum equipment take out very cavity 26
Sky makes multiple adsorption holes 25 generate adsorption capacity.The value of adsorption capacity caused by the vacuum equipment is set according to actual needs
Fixed, maximum can be -100KPa.The absorption force-fitting mesh-like film adsorbs substrate, prevents substrate from generating pit
Phenomenon.
The coating for being coated on substrate obverse and reverse is platinum carbon catalyst material, and platinum carbon catalyst chance water system can generate molten
Swollen phenomenon, dry component 25 avoid its swelling for the face-coating and reverse side coating of substrate to be dried.I.e. first is true
Dry component in empty absorption platform 21 is for being dried face-coating, the dry component in the second vacuum absorbing platform 31
Reverse side coating is dried.The dry component 25 is preferably multiple heating tube compositions, and multiple heating tubes can produce 30 DEG C
~150 DEG C of temperature environment, with flash baking face-coating and reverse side coating.Preferably, which further includes being used for
The control unit of the temperature of its generation is controlled, to adapt to the dry required temperature environment of different slurries.
Pressing assembly 24 is used to press the marginal portion of substrate, it is preferred that the width of substrate is greater than the first vacuum suction
The width of platform 21 and the second vacuum absorbing platform 31 prevents the leakage of adsorption capacity caused by two absorption platform surfaces, with right
Substrate generates good adsorption capacity.That is the pressing assembly on the first vacuum absorbing platform 21 is used to press the positive side of substrate
Edge, the pressing assembly on the second vacuum absorbing platform 31 are used to press the opposite longitudinal side edge of substrate.
In the present embodiment, the top of the first vacuum absorbing platform 21, the second coating mechanism is arranged in the first coating mechanism 22
32 are arranged in the top of the second vacuum absorbing platform 31, and the first coating mechanism 22 is identical with the structure of the second coating mechanism 32,
It is illustrated by taking the first coating mechanism 22 as an example below.
Referring to figs. 1 and 2, the first coating mechanism 22 includes: die head 221, for quantitatively feeding slurry to die head 221
Feeding machanism, for driving what die head 221 moved up and down to drive upside down component 222, and for driving die head 221 mobile to apply
The driven in translation component 223 of cloth.Die head 221 has for the feed inlet 2211 into slurry and the discharge port for spraying slurry
2212, feeding machanism is connected to feed inlet 2211, i.e., the outlet end of feeding machanism is connected to feed inlet 2211, and slurry is sent into
In die head 221.The feeding machanism is preferably accurate screw pump quantitative feeding system, according to the thickness of the speed of coating and coating
The automatic setting feed quantity of degree improves coating efficiency so that the thickness of coating once just can reach required thickness.Die head 221
Discharge port 2212 is right against the surface of each absorption platform, and the discharge port 2212 of die head is made under the action of driving upside down component 222
It maintains a certain distance, slurry is coated on the substrate on each absorption platform surface with the surface of substrate.That is the first coating machine
The discharge port of die head on structure 22 is right against the surface of the first vacuum absorbing platform 21, and slurry is applied to the front of substrate,
The discharge port of die head on second coating mechanism 32 is right against the surface of the second vacuum absorbing platform 31, and slurry is applied to base
The reverse side of material.As preferred embodiment, the length for the substrate that substrate unwinding device 10 is once discharged should be slightly bigger than first
The length of the length of vacuum absorbing platform 22 and the second vacuum absorbing platform 31.
It is shown in Figure 3, the structure of substrate is shown in figure, the front of the substrate 100 is provided with front protecting film 101,
The reverse side of substrate 100 is provided with reverse side protective film 102.As shown in connection with fig. 1, the roll-to-roll coating of substrate provided by the present embodiment
Equipment further include: front protecting film wrap-up 50 and reverse side protective film wrap-up 60, front protecting film wrap-up 50 are used
In before the front coating face-coating to substrate 100, removes and wind front protecting film 101.Front protecting film winding
Device 50 is arranged between substrate unwinding device 10 and the first apparatus for coating 20.Reverse side protective film wrap-up 60 is used for base
Before the reverse side coating reverse side coating of material 100, removes and wind reverse side protective film 102.The reverse side protective film wrap-up 60 is set
It sets between the first apparatus for coating 20 and the second apparatus for coating 30.
It as above, need to be again by front protecting after removing the front protecting film 101 of substrate 100 and reverse side protective film 102
Film 101 and reverse side protective film 102 are fitted in the front and back sides of substrate 101, therefore, the roll-to-roll painting of substrate provided by the present embodiment
Cloth equipment further include: front protecting film unwinding device 70 and reverse side protective film unwinding device 80.Front protecting film unwinding device 70
For discharging front protecting film to the surface of face-coating, it is arranged in reverse side protective film wrap-up 60 and the second apparatus for coating
Between 30.For discharging reverse side protective film to the surface of reverse side coating, setting applies reverse side protective film unwinding device 80 second
Between cloth apparatus 30 and base material winding device 40.Front protecting film and anti-is respectively set on the surface of face-coating and reverse side coating
Surface protective film prevents face-coating and reverse side coating from becoming to play the role of protection and support to face-coating and reverse side coating
Shape and influence product quality.
The face-coating and reverse side coating that roll-to-roll coating apparatus provided in this embodiment is coated with out can be continuous painting
The forms such as cloth, interval coating.It is shown in Figure 4, the form that face-coating is interval coating is shown in the figure, coating reverse side applies
When layer, this coating apparatus also needs setting margin detection device, for detecting the size of interval coating, so that face-coating and reverse side
Coating alignment.Meanwhile it is substrate unwinding device 10 1 that the distance between the first apparatus for coating 20 and the second apparatus for coating 30, which is arranged,
The integral multiple of the length of the substrate of secondary release is preferably set as one times.And when using continuous coating, then no setting is required margin detection
Device, and fix the distance between the first apparatus for coating 20 and the second apparatus for coating 30.
The foregoing is a further detailed description of the present application in conjunction with specific implementation manners, and it cannot be said that this Shen
Specific implementation please is only limited to these instructions.For those of ordinary skill in the art to which this application belongs, it is not taking off
Under the premise of from the design of the application utility model, a number of simple deductions or replacements can also be made.