CN114277608B - Five-roller coating machine and coating method thereof - Google Patents
Five-roller coating machine and coating method thereof Download PDFInfo
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- CN114277608B CN114277608B CN202210028366.4A CN202210028366A CN114277608B CN 114277608 B CN114277608 B CN 114277608B CN 202210028366 A CN202210028366 A CN 202210028366A CN 114277608 B CN114277608 B CN 114277608B
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- 238000001816 cooling Methods 0.000 claims abstract description 95
- 239000000758 substrate Substances 0.000 claims abstract description 35
- 238000005096 rolling process Methods 0.000 claims abstract description 30
- 238000001035 drying Methods 0.000 claims abstract description 23
- 238000004804 winding Methods 0.000 claims description 65
- 239000000463 material Substances 0.000 claims description 63
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- 238000003825 pressing Methods 0.000 claims description 23
- 239000003292 glue Substances 0.000 claims description 22
- 230000007246 mechanism Effects 0.000 claims description 20
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- 238000007790 scraping Methods 0.000 claims 2
- 241001391944 Commicarpus scandens Species 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 100
- 230000003020 moisturizing effect Effects 0.000 description 33
- 238000010586 diagram Methods 0.000 description 15
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- 230000001070 adhesive effect Effects 0.000 description 3
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- 238000011084 recovery Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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Abstract
The invention provides a five-roller coating machine and a coating method thereof, and the technical scheme is that the five-roller coating machine comprises an unreeling unit, a feeding and pulling unit, a corona unit, a coating deviation correcting unit, a five-roller coating unit, a drying air box unit, a first cooling and pulling unit, a rolling and rewetting unit, a steam and rewetting unit, a second cooling and pulling unit, a reeling deviation correcting unit and a reeling unit which are sequentially arranged. After the substrate is coated and dried by the five-roller coating unit, the surface of the coated product is humidified twice by the rolling rewetting unit and the steam rewetting unit, so that the surface humidity of the coated product is balanced with the atmospheric humidity to reach a certain humidity level, the coated product is prevented from becoming brittle and easy to break, and the quality of the coated product is improved.
Description
Technical Field
The invention relates to the technical field of coating processing, in particular to a five-roller coating machine and a coating method thereof.
Background
The coating machine is mainly used for the surface coating process production of films, paper and the like, and the coating machine is used for coating a layer of glue, paint or ink with a specific function on a coiled substrate, drying and then rolling. The coating machine adopts a special multifunctional coating head, can realize the generation of surface coating in various forms, is provided with a full-speed automatic film receiving mechanism for winding and unwinding, and is automatically controlled by a PLC program tension closed loop. In chinese patent application No. CN201420194882.5, a film coating machine is disclosed, which comprises a first unwinding mechanism, a traction mechanism, a five-roll coating machine, a mesh-roll coating machine, a comma coating machine, a UV dryer, and a winding device, which are connected in sequence, wherein the five-roll coating machine performs a first coating process on a coated material, the mesh-roll coating machine performs a second coating process on the coated material, and the comma coating machine uniformly scrapes the coating on the coated material. When the paper needs to be coated, the paper needs to be dried after being coated, so that the water content of the paper is reduced, the paper becomes fragile and easy to break, and curls, waves or wrinkles are generated, and the product quality is seriously influenced. Therefore, the existing coating machine cannot well meet the paper coating requirement.
Disclosure of Invention
The primary object of the present invention is to provide a five-roll coater that can improve the quality of coated articles.
Another object of the present invention is to provide a coating method of the above five-roll coater.
In order to achieve the above object, the present invention provides the following technical solutions:
a five-roller coating machine comprises an unreeling unit, a pulling-in unit, a corona unit, a coating deviation-rectifying unit, a five-roller coating unit, a drying air box unit, a first cooling traction unit, a rolling rewetting unit, a steam rewetting unit, a second cooling traction unit, a rolling deviation-rectifying unit and a reeling unit which are sequentially arranged;
the unwinding unit is used for unwinding the wound base material to be coated;
the pulling unit is used for pulling and conveying the unreeled base material and correcting the advancing direction of the base material;
the corona unit is used for carrying out corona treatment on the surface of the base material;
the coating deviation rectifying unit is used for performing secondary deviation rectifying before the base material is coated;
the five-roller coating unit is used for coating the surface of the base material to form a coated product;
the drying air box unit is used for drying the coated product after coating;
the first cooling and drawing unit is used for cooling the dried coating product;
The rolling rewetting unit is used for carrying out primary surface humidification on the dried coating product;
the steam rewetting unit is used for steam humidifying the surface of the coated product;
the second cooling traction unit is used for cooling the coated product subjected to steam humidification treatment;
the winding deviation rectifying unit is used for rectifying the running direction of the coated product;
the winding unit is used for winding the coated product;
the unit of roll rewetting includes roll rewetting frame and installs moisturizing box, water receiving basin, moisturizing roller, moisturizing glue compression roller, moisturizing driving piece, rewetting transition roller and the tension roll on roll rewetting frame, moisturizing roller, moisturizing glue compression roller, rewetting transition roller and tension roll rotationally connect on roll rewetting frame, the bottom of moisturizing roller is embedded into in the moisturizing box and can soak in the aquatic of moisturizing box, moisturizing glue compression roller is located moisturizing roller top and carries out the centre gripping with the moisturizing roller to coating products jointly, the moisturizing driving piece is used for the drive the moisturizing roller rotates, rewetting transition roller can supply coating products around establishing and transmitting coating products, the tension roll is used for making coating products keep the tensioning state.
Further setting: the steam rewetting unit comprises a steam rewetting rack, and a humidifying box, a steam rewetting roller and a steam conveying pipeline which are arranged on the steam rewetting rack, the steam conveying pipeline is connected with the humidifying box and conveys steam into the humidifying box, a steam outlet is formed in the top of the humidifying box, and the steam rewetting roller is arranged above the humidifying box and used for conveying coating products.
Further setting: unreel the unit and include unreel the frame and install unreel on unreeling the frame and connect material assembly body and two first rotary disks, the central axis of two first rotary disks is the level setting and is located same straight line, is equipped with a pair of transition roller and a pair of physiosis axle of unreeling between two first rotary disks, and a pair of transition roller of unreeling is centrosymmetric setting for first rotary disk, and a pair of physiosis axle of unreeling is centrosymmetric setting for first rotary disk relatively.
Further setting: the traction unit comprises a traction frame, and a traction floating roller, a traction transition roller, a traction rubber compression roller, a traction driving piece and a deviation correcting electric eye assembly which are arranged on the traction frame, wherein the traction floating roller, the traction transition roller and the traction rubber compression roller are rotatably connected to the traction frame, the traction driving piece is used for driving the traction roller to rotate, the traction floating roller is arranged above the traction roller, the traction rubber compression roller is arranged on one side of the traction roller and is used for compressing a substrate onto the surface of the traction roller, the traction transition roller is used for transmitting the substrate conveyed by the unwinding unit to the traction roller, and the deviation correcting electric eye assembly is used for correcting the advancing direction of the substrate.
Further setting: the coating unit of rectifying includes the first mount of rectifying, the first swing span of rectifying, the first deflector roll and the electric putter of rectifying, the first deflector roll of rectifying is installed on the first swing span of rectifying, the first swing span of rectifying is connected and the first mount swing of rectifying relatively of rectifying with the first mount of rectifying, be connected with the first swing fulcrum shaft between the middle part of the first swing span of rectifying and the first mount of rectifying, be connected with first support universal ball bearing between the both ends of the first swing span of rectifying and the first both ends of rectifying the mount, electric putter connects between first mount of rectifying and the first swing span of rectifying and is used for driving the relative first mount of rectifying of the first swing span of rectifying and swings in the horizontal direction.
Further setting: the five-roller coating unit comprises a coating frame, and a metering roller, a gluing roller assembly, a gum roller assembly, a tensioning roller assembly, a coating transition roller, a gum receiving basin and a gluing driving piece which are arranged on the coating frame, wherein the gluing roller assembly is used for gluing a substrate, the gum roller assembly is arranged above the gluing roller assembly and clamps the substrate together with the gluing roller assembly, the metering roller is used for transferring a coating to the gluing roller assembly, the tensioning roller assembly is used for tensioning the substrate, the coating transition roller is used for conveying the substrate, and the gum receiving basin is arranged at the bottom of the coating frame and is used for containing the coating.
Further setting: first cooling traction unit includes first cooling frame and installs first chill roll, first cooling glue compression roller, first cooling driving piece and the first cooling transition roller on first cooling frame, first cooling driving piece is used for driving first chill roll and rotates, first chill roll is provided with two and can supplies coating goods winding cooling, first cooling glue compression roller is used for compressing tightly coating goods on first chill roll, first cooling transition roller is used for the transmission coating goods.
Further setting: the winding unit comprises a winding frame, a winding material receiving assembly body and two second rotating disks, the winding material receiving assembly body and the two second rotating disks are installed on the winding frame, the central axes of the two second rotating disks are horizontally arranged and located on the same straight line, a pair of winding transition rollers and a pair of winding air expansion shafts are arranged between the two second rotating disks, the pair of winding transition rollers are arranged in a central symmetry mode relative to the second rotating disks, the pair of winding air expansion shafts are arranged in a central symmetry mode relative to the second rotating disks, a winding compression roller is further arranged between the two second rotating disks, and the winding compression roller can conduct position adjustment relative to the second rotating disks along the diameter direction of the second rotating disks.
Further setting: the utility model discloses a coating product vibration damping device, including roll rewetting unit and steam rewetting unit, the unit that anhydrates includes the frame that anhydrates and installs the vibration mechanism on the frame that anhydrates and scrape water mechanism, vibration mechanism is including vibration driving piece and supporting baseplate, the supporting baseplate is the arc form and is used for supporting coating product, the vibration driving piece is used for driving the supporting baseplate vibration and drives coating product shake, it includes punch holder and lower plate to scrape water mechanism, punch holder and lower plate are upper and lower setting and form the clearance that can supply coating product to pass through between the two, clearance between punch holder and the lower plate reduces along coating advancing direction gradually.
The invention also provides a coating method which is realized by adopting the five-roller coating machine and comprises the following steps:
unreeling the coiled base material to be coated by means of an unreeling unit;
the unreeled base material is dragged and conveyed by the pulling unit, and the advancing direction of the base material is corrected;
carrying out corona treatment on one surface of the base material by means of a corona unit;
carrying out secondary correction on the base material subjected to corona treatment by using a coating correction unit and transmitting the base material to a five-roller coating unit;
Coating the surface of the base material by means of a five-roller coating unit to form a coated product;
drying the coated article with the aid of a drying air box unit;
cooling the dried coated article by means of a first cooling and drawing unit;
preliminarily humidifying the surface of the coated product by means of a rolling rewetting unit;
steam humidifying the surface of the coated product by means of a steam rewetting unit;
cooling the coated product subjected to the steam humidification treatment by means of a second cooling and drawing unit;
correcting the running direction of the coated product by using a roll correcting unit;
the winding unit is used for winding the coated product.
Compared with the prior art, the scheme of the invention has the following advantages:
1. in the five-roller coating machine, after a base material is coated and dried by the five-roller coating unit, the surface of a coated product is humidified twice by the rolling rewetting unit and the steam rewetting unit, so that the surface humidity of the coated product is balanced with the atmospheric humidity to reach a certain humidity level, the coated product is prevented from becoming brittle and breaking easily, and the quality of the coated product is improved.
2. According to the coating method, after the base material is coated and dried, the surface of the coated product is subjected to double humidification treatment by adopting two humidification means of rolling rewetting and steam humidifying, so that the humidity of the coated product is improved, the coated product is prevented from becoming brittle, and the coating quality of the coated product is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a five-roll coater according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an unwinding unit according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of an unwinding unit according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a pulling unit according to an embodiment of the present invention;
FIG. 5 is another schematic structural diagram of a pulling unit according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a coating deviation rectifying unit according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a five-roll coating unit in an embodiment of the present invention;
FIG. 8 is a schematic view showing the structure of a drying bellows unit according to an embodiment of the present invention;
FIG. 9 is a schematic illustration of a first cooled traction unit according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a rolling rewet unit according to an embodiment of the present invention;
FIG. 11 is another schematic diagram of the rolling rewet unit in an embodiment of the present invention;
FIG. 12 is a schematic diagram of a steam rewetting unit according to an embodiment of the present invention;
FIG. 13 is a schematic diagram of a second cooled traction unit according to an embodiment of the present invention;
FIG. 14 is a schematic structural diagram of a winding deviation rectifying unit according to an embodiment of the present invention;
FIG. 15 is another schematic diagram of the winding deviation rectifying unit according to an embodiment of the present invention;
fig. 16 is a schematic structural diagram of a winding unit in an embodiment of the present invention;
fig. 17 is a schematic structural diagram of a dewatering unit according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
As shown in fig. 1 to 17, the invention provides a five-roll coater, which comprises an unreeling unit 01, a reeling unit 02, a corona unit 03, a coating deviation correcting unit 04, a five-roll coating unit 05, a drying air box unit 06, a first cooling and drawing unit 07, a rolling and rewetting unit 08, a steam and rewetting unit 09, a second cooling and drawing unit 10, a reeling deviation correcting unit 11 and a reeling unit 12, which are sequentially arranged; the unreeling unit 01 is used for unreeling the coiled base material to be coated; the pulling unit 02 is used for carrying out pulling conveying on the unreeled base material and correcting the advancing direction of the base material; the corona unit 03 is used for carrying out corona treatment on the surface of the base material; the coating deviation rectifying unit 04 is used for performing secondary deviation rectification before the base material is coated; the five-roller coating unit 05 is used for coating the surface of a base material to form a coated product; the drying air box unit 06 is used for drying the coated article after coating; the first cooling and drawing unit 07 is used for cooling the dried coated product; the rolling rewetting unit 08 is used for performing primary surface humidification on the dried coated product; the steam rewetting unit 09 is used for steam humidifying the surface of the coated product; the second cooling and drawing unit 10 is used for cooling the coated product after steam humidification treatment; the winding deviation rectifying unit 11 is used for rectifying the running direction of the coated product; the winding unit 12 is used for winding the coated product.
Through the arrangement, after the substrate is coated and dried by the five-roller coating unit 05, the surface of the coated product is humidified twice by the rolling moisture-regaining unit 08 and the steam moisture-regaining unit 09, so that the surface humidity of the coated product is balanced with the atmospheric humidity, a certain humidity level is achieved, the coated product is prevented from becoming brittle and breaking easily, and the quality of the coated product is improved.
Further, unreel unit 01 including unreeling the frame 011 and install unreel on unreeling the frame 011 and connect material assembly 012 and two first rotary disk 013, two first rotary disk 013's the central axis be the level setting and lie in same straight line, be equipped with a pair of transition roller 014 and a pair of physiosis axle 015 of unreeling between two first rotary disk 013, a pair of transition roller 014 of unreeling is central symmetry setting for first rotary disk 013 relatively, a pair of physiosis axle 015 of unreeling is central symmetry setting for first rotary disk 013 relatively.
In this embodiment, unreel unit 01 still includes unreel driving motor 016, it rotates to unreel driving motor 016 is used for driving the physiosis axle, and physiosis axle surface is provided with a plurality of protruding keys that can float, and protruding key can be protruding or descend to reset under the effect of atmospheric pressure, and after the physiosis epaxial back was established to the inner tube cover of coiled material, protruding key can be salient and support tightly with the inner tube of coiled material, and it is fixed to utilize the physiosis axle to realize quick material loading.
In this embodiment, unreeling unit 01 is double-function position unreeling unit 01, can realize seamless linking material loading, quick material loading reduces the material loading time, promotes production efficiency.
Preferably, the unwinding unit 01 further comprises a first cantilever operation box, and the first cantilever operation box can be operated by an operator to intelligently control the unwinding unit 01.
Further, the pulling unit 02 includes a pulling frame 021, a pulling floating roll 022, a pulling roll 023, a pulling transition roll 024, a pulling glue pressing roll 025, a pulling driving member 026 and a deviation correcting electric eye assembly 027 which are installed on the pulling frame 021, wherein the pulling floating roll 022, the pulling roll 023, a pulling transition roll 024 and the pulling glue pressing roll 025 are rotatably connected to the pulling frame 021, the pulling driving member 026 is a pulling motor, the pulling driving member 026 is used for driving the pulling roll 023 to rotate, the pulling floating roll 022 is arranged above the pulling roll 023, the pulling glue pressing roll 025 is arranged at one side of the pulling roll 023 and is used for pressing the substrate to the surface of the pulling roll 023, the pulling transition roll 024 is used for transferring the substrate conveyed by the unwinding unit 01 to the pulling roll 023, and the deviation correcting electric eye assembly 027 is used for correcting the advancing direction of the substrate.
In this embodiment, go into to lead transition roller 024 and electric eye subassembly 027 of rectifying and all set up in going into the bottom of leading frame 021, go into to be provided with the guide rail 028 of rectifying along the horizontal direction on leading frame 021, electric eye subassembly 027 of rectifying installs on the guide rail 028 of rectifying, and electric eye subassembly 027 of rectifying includes a pair of electric eye of rectifying, and two electric eyes of rectifying can follow the guide rail 028 of rectifying and remove to adjust the interval between two guide rails 028 of rectifying, can carry out artificial regulation according to the width of substrate, utilize the electric eye of rectifying to carry out accurate control to the position of substrate, improve the accuracy nature of substrate transmission.
In this embodiment, the corona unit 03 performs corona discharge on the surface of the substrate by using high frequency and high voltage, so as to increase the adhesion, adhesion and hydrophilicity of the surface of the substrate, and make the surface of the substrate more easily adhere to the coating.
Further, the coating deviation rectifying unit 04 includes a first deviation rectifying fixing frame 041, a first deviation rectifying swing frame 042, a first deviation rectifying guide roller 043 and a first electric push rod 044, the first deviation rectifying guide roller 043 is installed on the first deviation rectifying swing frame 042, the first deviation rectifying swing frame 042 is connected with the first deviation rectifying fixing frame 041 and can swing relative to the first deviation rectifying fixing frame 041, a first swing fulcrum 045 is connected between the middle of the first deviation rectifying swing frame 042 and the first deviation rectifying fixing frame 041, a first support universal ball bearing 046 is connected between two ends of the first deviation rectifying swing frame 042 and two ends of the first deviation rectifying fixing frame 041, and the first electric push rod 044 is connected between the first deviation rectifying fixing frame 041 and the first deviation rectifying swing frame 042 and is used for driving the first deviation rectifying swing frame 042 to swing in the horizontal direction relative to the first deviation rectifying fixing frame 041.
In this embodiment, the first deviation-correcting fixing frame 041 is located above the first deviation-correcting swinging frame 042, the first swinging fulcrum 045 and the first electric push rod 044 are respectively and correspondingly disposed on two long sides of the first deviation-correcting fixing frame 041, and the first supporting universal ball bearings 046 are disposed at four corner ends of the first deviation-correcting fixing frame 041.
Through such setting, when first electric putter 044 is flexible, the actuating lever of first electric putter 044 drives first swing span 042 one side antedisplacement or the rethread of rectifying, and the opposite side of first swing span 045 of rectifying, only can take place to rotate, thereby make first swing span 042 of rectifying carry out the horizontal hunting around first swing span 045 and adjust, first swing span 042 of rectifying drives first deflector roll 043 of rectifying and carries out the horizontal hunting, and then can adjust the advancing direction of the substrate on the first deflector roll 043 of rectifying, ensure the accuracy nature of substrate advancing direction.
Further, five roller coating units 05 include coating frame 051 and install gauge roller 052, rubberizing roller subassembly 053, gum roller subassembly 054, tensioning roller subassembly 055, coating transition roller 056, connect gluey basin 057 and rubberizing driving piece 058 on coating frame 051, rubberizing roller subassembly 053 is used for rubberizing the substrate, gum roller subassembly 054 sets up in rubberizing roller subassembly 053's top and presss from both sides the substrate with rubberizing roller subassembly 053 jointly, gauge roller 052 is used for shifting the coating to rubberizing roller subassembly 053 on, tensioning roller subassembly 055 is used for tensioning the substrate, coating transition roller 056 is used for transmitting the substrate, connect gluey basin 057 to set up in coating frame 051 bottom and be used for holding the coating.
In this embodiment, the gluing driving part 058 is a gluing driving motor, and the gluing driving part 058 is connected with the gluing roller assembly 053 and is used for driving the gluing roller assembly 053 and the metering roller 052 to rotate. During the coating process, the coating in the glue receiving basin 057 is transferred to the upper rubber roller assembly 053 through the metering roller 052, and the upper rubber roller assembly 053 transfers the coating to the surface of the substrate, so that the coating treatment of the surface of the substrate is realized.
Further, the drying bellows unit 06 includes a drying bellows 061, an air inlet pipe 062, a bellows guide roller 063 for providing a closed air drying environment, an air inlet pipe 062 connected to the drying bellows 061, a guide roller drive motor 064, and a hot air heater 065 for supplying hot air.
Further, the first cooling traction unit 07 comprises a first cooling rack 071, and a first cooling roller 072, a first cooling glue pressing roller 073, a first cooling driving member 074 and a first cooling transition roller 075 which are mounted on the first cooling rack 071, wherein the first cooling driving member 074 is used for driving the first cooling roller 072 to rotate, the first cooling driving member 074 is a first cooling motor, the first cooling roller 072 is provided with two cooling rollers 072 and can be used for winding and cooling a coated product, the first cooling glue pressing roller 073 is used for pressing the coated product onto the first cooling roller 072, and the first cooling transition roller 075 is used for transferring the coated product.
In this embodiment, two first chill rolls 072 are arranged side by side from top to bottom, and first chill roll 072 adopts the cylinder of major diameter, and when cooling the coating goods after drying, twine the coating goods on two first chill rolls 072, utilize the peripheral surface of first chill roll 072 to realize the rapid cooling to the coating goods, improve production efficiency.
Further, the rolling rewetting unit 08 comprises a rolling rewetting frame 081, and a moisturizing box 082, a water receiving basin 083, a moisturizing roller 084, a moisturizing adhesive pressing roller 085, a moisturizing driving member 086, a rewetting transition roller 087 and a tension roller 088 which are installed on the rolling rewetting frame 081, wherein the moisturizing roller 084, the moisturizing adhesive pressing roller 085, the rewetting transition roller 087 and the tension roller 088 are rotatably connected to the rolling rewetting frame 081, the bottom of the moisturizing roller 084 is embedded in the moisturizing box 082 and can be soaked in water of the moisturizing box 082, the moisturizing adhesive pressing roller 085 is positioned above the moisturizing roller 084 and clamps the coated product together with the moisturizing roller 084, the moisturizing driving member 086 is used for driving the moisturizing roller 084 to rotate, the moisturizing transition roller 087 is used for winding the coated product and transferring the coated product, and the tension roller 088 is used for keeping the coated product in a tensioned state.
In this embodiment, a material with strong water absorption property may be sleeved on the surface of the moisturizing roller 084, the water absorbing material on the surface of the moisturizing roller 084 is used to carry water in the moisturizing basin, and the water is transferred to the surface of the coated product along with the rotation of the moisturizing roller 084, so as to humidify the coated product, improve the humidity of the surface of the coated product, and prevent the coated product from drying and becoming brittle.
Further, the steam rewetting unit 09 includes a steam rewetting rack 091, and a humidifying box 092, a steam rewetting roller 093 and a steam conveying pipe 094 which are installed on the steam rewetting rack 091, wherein the steam conveying pipe 094 is connected with the humidifying box 092 and conveys steam into the humidifying box 092, a steam outlet is opened at the top of the humidifying box 092, and the steam rewetting roller 093 is installed above the humidifying box 092 and is used for conveying the coated product.
In this embodiment, the steam outlet on the top surface of the humidification box 092 is arranged in a linear manner, and is provided with a plurality of steam outlets side by side, and the steam outlet is parallel to the steam rewetting roller 093. When the coated product passes through the steam outlet, the surface of the coated product is humidified for the second time by using steam, and the secondary humidification is more uniform, and the steam humidification can make the overall humidity of the coated product more uniform.
Further, the second cooling traction unit 10 includes a second cooling rack 101, and a second cooling roller 102, a second cooling glue pressing roller 103, a second cooling driving member 104 and a second cooling transition roller 105 which are mounted on the second cooling rack 101, wherein the second cooling driving member 104 is used for driving the second cooling roller 102 to rotate, the second cooling driving member 104 is a second cooling motor, the second cooling roller 102 is provided with two rollers and can be used for winding and cooling the coated product, the second cooling glue pressing roller 103 is used for pressing the coated product onto the second cooling roller 102, and the second cooling transition roller 105 is used for transferring the coated product.
In this embodiment, the second cooling and drawing unit 10 has the same function as the first cooling and drawing unit 07, and is used for rapidly cooling the coated product, and the coated product is rapidly cooled by using a larger peripheral area of the cooling roll.
Further, the winding deviation rectifying unit 11 includes a second deviation rectifying fixing frame 111, a second deviation rectifying swing frame 112, a second deviation rectifying guide roller 113 and a second electric push rod 114, the second deviation rectifying guide roller 113 is installed on the second deviation rectifying swing frame 112, the second deviation rectifying swing frame 112 is connected with the second deviation rectifying fixing frame 111 and can swing relative to the second deviation rectifying fixing frame 111, a second swing fulcrum 115 is connected between the middle of the second deviation rectifying swing frame 112 and the second deviation rectifying fixing frame 111, second supporting universal ball bearings 116 are connected between two ends of the second deviation rectifying swing frame 112 and two ends of the second deviation rectifying fixing frame 111, and the second electric push rod 114 is connected between the second deviation rectifying fixing frame 111 and the second deviation rectifying swing frame 112 and is used for driving the second deviation rectifying swing frame 112 to swing in the horizontal direction relative to the second deviation rectifying fixing frame 111.
In this embodiment, the winding deviation rectifying unit 11 further includes a deviation rectifying transition roller 117 and a deviation rectifying floating roller 118, the deviation rectifying transition roller 117 is used for conveying the coated product, and the deviation rectifying floating roller 118 can perform floating adjustment relative to the second deviation rectifying fixing frame 111, so that the coated product is kept in a tensioned state.
Further, the winding unit 12 includes a winding frame 121, a winding material receiving assembly 122 and two second rotating disks 123, which are mounted on the unwinding frame 011, the central axes of the two second rotating disks 123 are horizontally arranged and located on the same straight line, a pair of winding transition rollers 124 and a pair of winding air expansion shafts 125 are disposed between the two second rotating disks 123, the pair of winding transition rollers 124 is disposed in central symmetry with respect to the second rotating disks 123, the pair of winding air expansion shafts 125 is disposed in central symmetry with respect to the second rotating disks 123, the second winding material receiving assembly is configured to wind the base material, a winding pressure roller 127 is further disposed between the two second rotating disks 123, and the winding pressure roller 127 can perform position adjustment with respect to the second rotating disks 123 along the diameter direction of the second rotating disks 123. The winding frame 121 is further provided with a winding driving member for driving the winding air shaft 125 to rotate, and the winding driving member is a motor.
In this embodiment, the winding unit 12 is a double-functional-position winding unit 12, the working principle of which is similar to that of the unwinding unit 01, and the winding air expansion shaft 125 is driven by the motor to rotate, so that the coated product is wound on the inner cylinder sleeved on the winding air expansion shaft 125, and quick material collection is realized.
Further, a water removal unit 13 is further arranged between the rolling moisture recovery unit 08 and the steam moisture recovery unit 09, the water removal unit 13 includes a water removal frame, and a vibration mechanism 131 and a water wiping mechanism 132 which are installed on the water removal frame, the vibration mechanism 131 includes a vibration driving member and a support base plate 1311, the support base plate 1311 is arc-shaped and is used for supporting the coated product, the vibration driving member is used for driving the support base plate 1311 to vibrate and driving the coated product to shake, the vibration driving member adopts a vibration motor, the water wiping mechanism 132 includes an upper clamping plate 1321 and a lower clamping plate 1322, the upper clamping plate 1321 and the lower clamping plate 1322 are arranged up and down and form a gap between the upper clamping plate 1321 and the lower clamping plate 1322, the gap between the upper clamping plate 1321 and the lower clamping plate 1322 is gradually reduced along a coating advancing direction.
Because the surface of the coated product is rewetted by rolling, the surface of the coated product carries more liquid, and the liquid on the surface of the coated product is unevenly distributed, on one hand, when the coated product is rewetted by steam, the water layers with different thicknesses on the surface of the coated product can influence the wetting effect of the steam on the coated product, so that the coated product has different humidity, and the consistency of the finished coated product is difficult to ensure. By arranging the vibration mechanism 131, when the coated product with the liquid on the surface is moved to the supporting bottom plate 1311, the redundant liquid on the surface of the coated product is shaken and dropped by utilizing the vibration of the supporting bottom plate 1311, and meanwhile, the liquid on the surface of the coated product is more uniform, so that the surface humidity uniformity is improved. By arranging the water wiping mechanism 132, when the shaken coated product passes between the upper clamping plate 1321 and the lower clamping plate 1322 of the water wiping mechanism 132, the coated product is extruded by utilizing the gradually reduced gap between the upper clamping plate 1321 and the lower clamping plate 1322, so that the liquid on the surface of the coated product fully permeates the coated product, the humidifying effect is better when the subsequent steam humidification is carried out, the coated product can be fully wetted, and the consistency of the performance of the finished coated product is improved.
Preferably, the water removing unit 13 further comprises a water collecting basin 133, the water collecting basin 133 is disposed below the vibration mechanism 131 and the water wiping mechanism 132, and the bottom of the supporting bottom plate 1311 is provided with water leakage holes. By providing the water collection basin 133, water on the surface of the coated product can be recycled, and water resource consumption can be reduced. The water leakage holes are arranged, so that the surface dehydration of the coating product can be accelerated, and the water drainage effect is improved.
The invention also provides a coating method which is realized by adopting the five-roller coating machine and comprises the following steps:
unreeling the coiled base material to be coated by means of the unreeling unit 01;
the unreeled base material is dragged and conveyed by the pulling unit 02, and the advancing direction of the base material is corrected;
one side of the substrate is corona-treated by means of a corona unit 03;
performing secondary rectification on the base material subjected to corona treatment by using a coating rectification unit 04 and transmitting the base material to a five-roller coating unit 05;
coating the surface of the base material by means of a five-roller coating unit 05 to form a coated product;
the coated article is subjected to a drying treatment by means of a drying wind box unit 06;
cooling the dried coated article by means of a first cooling and drawing unit 07;
The surface of the coated product is preliminarily humidified by means of a rolling rewetting unit 08;
steam humidifying the surface of the coated product by means of a steam rewetting unit 09;
cooling the coated article subjected to the steam humidification treatment by means of a second cooling traction unit 10;
correcting the running direction of the coated product by using a roll correcting unit;
the winding unit 12 is used to wind the coated product.
Compared with the prior art, the scheme of the invention has the following advantages:
1. in the five-roller coating machine, after a substrate is coated and dried by the five-roller coating unit 05, the surface of a coated product is humidified twice by the rolling rewetting unit 08 and the steam rewetting unit 09, so that the surface humidity of the coated product is balanced with the atmospheric humidity to reach a certain humidity level, the coated product is prevented from becoming brittle and breaking easily, and the quality of the coated product is improved.
2. According to the coating method, after the base material is coated and dried, the surface of the coated product is subjected to double humidification treatment by adopting two humidification means of rolling rewetting and steam humidifying, so that the humidity of the coated product is improved, the coated product is prevented from becoming brittle, and the coating quality of the coated product is improved.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A five-roller coating machine is characterized in that: the device comprises an unreeling unit (01), a pulling unit (02), a corona unit (03), a coating deviation rectifying unit (04), a five-roller coating unit (05), a drying air box (061) unit (06), a first cooling traction unit (07), a rolling rewetting unit (08), a steam rewetting unit (09), a second cooling traction unit (10), a reeling deviation rectifying unit (11) and a reeling unit (12) which are arranged in sequence;
the unreeling unit (01) is used for unreeling the coiled base material to be coated;
the pulling unit (02) is used for carrying out pulling conveying on the unreeled base material and correcting the advancing direction of the base material;
the corona unit (03) is used for carrying out corona treatment on the surface of the substrate;
the coating deviation rectifying unit (04) is used for performing secondary deviation rectification before the base material is coated;
the five-roller coating unit (05) is used for coating the surface of the base material to form a coated product;
the drying air box (061) unit (06) is used for drying the coated product after coating;
The first cooling and drawing unit (07) is used for cooling the dried coating product;
the rolling rewetting unit (08) is used for carrying out primary surface humidification on the dried coating product;
the steam rewetting unit (09) is used for steam humidifying the surface of the coated product;
the second cooling traction unit (10) is used for cooling the coated product after steam humidification treatment;
the winding deviation rectifying unit (11) is used for rectifying the running direction of the coated product;
the winding unit (12) is used for winding the coated product;
the rolling rewetting unit (08) comprises a rolling rewetting frame (081) and a water replenishing box (082), a water receiving basin (083), a water replenishing roller (084), a water replenishing glue pressing roller (085), a water replenishing driving part (086), a rewetting transition roller (087) and a tension roller (088) which are arranged on the rolling rewetting frame (081), wherein the water replenishing roller (084), the water replenishing glue pressing roller (085), the water replenishing transition roller (087) and the tension roller (088) are rotatably connected to the rolling rewetting frame (081), the bottom of the water replenishing roller (084) is embedded into the water replenishing box (082) and can be soaked in water of the water replenishing box (082), the water replenishing glue pressing roller (085) is positioned above the water replenishing roller (084) and clamps a coating product together with the water replenishing roller (084), the water replenishing driving part (086) is used for driving the water replenishing roller (084) to rotate, and the moisture transition roller (087) can be arranged around the coating product and can be coated, the tension roller (088) is used to keep the coated article in tension;
The traction unit (02) comprises a traction frame (021) and a traction floating roller (022), a traction roller (023), a traction transition roller (024), a traction glue pressing roller (025), a traction driving piece (026) and a deviation correcting electric eye component (027) which are arranged on the traction frame (021), the traction floating roller (022), the traction roller (023), the traction transition roller (024) and the traction glue pressing roller (025) are rotatably connected to the traction frame (021), the traction driving piece (026) is used for driving the traction roller (023) to rotate, the traction roller (022) is arranged above the traction roller (023), the traction glue pressing roller (025) is arranged on one side of the traction roller (023) and is used for pressing the base material onto the surface of the traction roller (023), the traction transition roller (024) is used for transmitting the base material conveyed by the unwinding unit (01) to the traction roller (023), and the deviation correcting electric eye component (027) is used for correcting the advancing direction of the base material, the traction transition roller (024) and the deviation correcting electric eye assembly (027) are arranged at the bottom of the traction frame (021), a deviation correcting guide rail (028) is arranged on the traction frame (021) along the horizontal direction, the deviation correcting electric eye assembly (027) is installed on the deviation correcting guide rail (028), the deviation correcting electric eye assembly (027) comprises a pair of deviation correcting electric eyes, and the two deviation correcting electric eyes can move along the deviation correcting guide rail (028);
The coating deviation rectifying unit (04) comprises a first deviation rectifying fixed frame (041), a first deviation rectifying swinging frame (042), a first deviation rectifying guide roller (043) and a first electric push rod (044), the first deviation-rectifying guide roller (043) is arranged on the first deviation-rectifying swing frame (042), the first deviation-rectifying swing frame (042) is connected with the first deviation-rectifying fixed frame (041) and can swing relative to the first deviation-rectifying fixed frame (041), a first swing fulcrum shaft (045) is connected between the middle part of the first deviation rectifying swing frame (042) and the first deviation rectifying fixed frame (041), a first supporting universal ball bearing (046) is connected between the two ends of the first deviation rectifying swing frame (042) and the two ends of the first deviation rectifying fixed frame (041), the first electric push rod (044) is connected between the first deviation rectifying fixed frame (041) and the first deviation rectifying swing frame (042) and is used for driving the first deviation rectifying swing frame (042) to swing in the horizontal direction relative to the first deviation rectifying fixed frame (041);
still be equipped with between roll rewetting unit (08) and the steam rewetting unit (09) and remove water unit (13), it includes the frame that removes water and install vibration mechanism (131) and the water scraping mechanism (132) on the frame that removes water to remove water unit (13), vibration mechanism (131) are including vibration driving piece and support bottom plate (1311), support bottom plate (1311) are the arc and are used for supporting coating products, the vibration driving piece is used for driving support bottom plate (1311) vibration and drive coating products shake, water scraping mechanism (132) include upper plate (1321) and lower plate (1322), upper plate (1321) and lower plate (1322) are the upper and lower setting and form the clearance that can supply coating products to pass through between the two, the clearance between upper plate (1321) and lower plate (1322) reduces along coating advancing direction gradually.
2. The five-roll coater of claim 1, wherein: the steam rewetting unit (09) comprises a steam rewetting rack (091), and a humidifying box body (092), a steam rewetting roller (093) and a steam conveying pipeline (094) which are arranged on the steam rewetting rack (091), wherein the steam conveying pipeline (094) is connected with the humidifying box body (092) and conveys steam into the humidifying box body (092), a steam outlet is formed in the top of the humidifying box body (092), and the steam rewetting roller (093) is arranged above the humidifying box body (092) and used for conveying a coated product.
3. The five-roll coater according to claim 1, wherein: unreel unit (01) including unreeling frame (011) and installing unreeling on unreeling frame (011) and connect material assembly body (012) and two first rotary disk (013), the central axis of two first rotary disk (013) is the level setting and is located same straight line, be equipped with a pair of transition roller (014) and a pair of physiosis axle (015) of unreeling between two first rotary disk (013), a pair of transition roller (014) of unreeling is central symmetry setting first rotary disk (013) relatively, a pair of physiosis axle (015) of unreeling is central symmetry setting first rotary disk (013) relatively.
4. The five-roll coater of claim 1, wherein: five roller coating units (05) include coating frame (051) and install metering roller (052), rubberizing roller subassembly (053), gum roller subassembly (054), tensioning roller subassembly (055), coating transition roller (056), connect gluey basin (057) and rubberizing driving piece (058) on coating frame (051), rubberizing roller subassembly (053) are used for carrying out the rubberizing to the substrate, gum roller subassembly (054) set up in the top of rubberizing roller subassembly (053) and press from both sides the substrate jointly with rubberizing roller subassembly (053), metering roller (052) are used for shifting coating to rubberizing roller subassembly (053) on, tensioning roller subassembly (055) are used for the substrate tensioning, coating transition roller (056) are used for transmitting the substrate, connect gluey basin (057) to set up in coating frame (051) bottom and are used for holding paint.
5. The five-roll coater of claim 1, wherein: the first cooling traction unit (07) comprises a first cooling rack (071), a first cooling roller (072) mounted on the first cooling rack (071), a first cooling glue pressing roller (073), a first cooling driving part (074) and a first cooling transition roller (075), wherein the first cooling driving part (074) is used for driving the first cooling roller (072) to rotate, the first cooling roller (072) is provided with two rollers and can be used for winding and cooling a coating product, the first cooling glue pressing roller (073) is used for pressing the coating product onto the first cooling roller (072), and the first cooling transition roller (075) is used for transferring the coating product.
6. The five-roll coater of claim 1, wherein: the winding unit (12) comprises a winding frame (121), a winding material receiving assembly body (122) and two second rotating disks (123), wherein the winding material receiving assembly body (122) and the two second rotating disks (123) are mounted on the unwinding frame (011), the central axes of the two second rotating disks (123) are horizontally arranged and located on the same straight line, a pair of winding transition rollers (124) and a pair of winding air expansion shafts (125) are arranged between the two second rotating disks (123), the pair of winding transition rollers (124) are arranged in central symmetry relative to the second rotating disks (123), the pair of winding air expansion shafts (125) are arranged in central symmetry relative to the second rotating disks (123), winding compression rollers (127) are further arranged between the two second rotating disks (123), and the winding compression rollers (127) can perform position adjustment relative to the second rotating disks (123) along the diameter direction of the second rotating disks (123).
7. A coating method, characterized by: use of a five roll coater according to any of claims 1 to 6, comprising the steps of:
unreeling the coiled base material to be coated by means of an unreeling unit (01);
the unreeled base material is dragged and conveyed by the pulling unit (02) and the advancing direction of the base material is corrected;
one side of the substrate is subjected to corona treatment by means of a corona unit (03);
carrying out secondary deviation correction on the base material subjected to corona treatment by virtue of a coating deviation correcting unit (04) and transmitting the base material to a five-roller coating unit (05);
coating the surface of the base material by means of a five-roller coating unit (05) to form a coated product;
drying the coated article by means of a drying bellows (061) unit (06);
cooling the dried coated article by means of a first cooling and drawing unit (07);
preliminarily humidifying the surface of the coated product by means of a rolling rewetting unit (08);
steam humidifying the surface of the coated article by means of a steam rewetting unit (09);
cooling the coated product subjected to the steam humidification treatment by means of a second cooling traction unit (10);
correcting the running direction of the coated product by using a roll correcting unit;
The winding unit (12) is used for winding the coated product.
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| CN202210028366.4A CN114277608B (en) | 2022-01-11 | 2022-01-11 | Five-roller coating machine and coating method thereof |
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| CN116394631A (en) * | 2023-04-20 | 2023-07-07 | 广东聚德机械有限公司 | Coating device and coating method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605217A (en) * | 2019-09-18 | 2019-12-24 | 东莞市壮凌自动化科技有限公司 | Full-automatic coating machine |
| CN214766526U (en) * | 2021-05-06 | 2021-11-19 | 肇庆凯盛电子科技有限公司 | From type paper coating production line |
| CN214975369U (en) * | 2021-05-06 | 2021-12-03 | 肇庆凯盛电子科技有限公司 | High-speed coating production line for production of release paper |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605217A (en) * | 2019-09-18 | 2019-12-24 | 东莞市壮凌自动化科技有限公司 | Full-automatic coating machine |
| CN214766526U (en) * | 2021-05-06 | 2021-11-19 | 肇庆凯盛电子科技有限公司 | From type paper coating production line |
| CN214975369U (en) * | 2021-05-06 | 2021-12-03 | 肇庆凯盛电子科技有限公司 | High-speed coating production line for production of release paper |
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Denomination of invention: A five roller coating machine and its coating method Effective date of registration: 20231107 Granted publication date: 20220729 Pledgee: Bank of China Limited Foshan Nanhai Xiqiao Sub-branch Pledgor: FOSHAN POCATION MACHINERY CO.,LTD. Registration number: Y2023980064497 |
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