CN102514342B - Film covering equipment and film covering method - Google Patents
Film covering equipment and film covering method Download PDFInfo
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- CN102514342B CN102514342B CN201110379076.6A CN201110379076A CN102514342B CN 102514342 B CN102514342 B CN 102514342B CN 201110379076 A CN201110379076 A CN 201110379076A CN 102514342 B CN102514342 B CN 102514342B
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Abstract
The invention provides film covering equipment and a film covering method. The film covering equipment is used for pasting and covering a polyester film on a metal plate for obtaining a film covered metal plate, and the film covering equipment at least comprises a film covering unit, a pressure providing unit and a quenching unit, wherein the film covering unit consists of film covering rollers and auxiliary cooling rollers, the inside of the film covering rollers is hollow, the film covering rollers are communicated with cooling fluid systems, each film covering roller comprises a fixed roller and a movable roller, the number of the auxiliary cooling rollers is at least two, the auxiliary cooling rollers are respectively arranged at the outer side of the fixed roller and the movable roller and form expansion gaps, rubber layers with the surfaces subjected to polishing treatment are respectively attached on the surfaces of the fixed roller and the movable roller, the auxiliary cooling rollers have the surfaces subjected to mirror surface treatment, the quenching unit comprises an air cooling device and a water cooling groove which are in sequential arrangement in the film covered metal plate transmission direction. The invention also provides the film covering method. According to the technical scheme provided by the invention, the bonding-agent-free film covered metal plate with the firmly bonded polyester films and base plates can be prepared without adopting bonding agents.
Description
Technical field
The present invention relates to a kind of equipment for coating film and film covering method, relate in particular to a kind of for metallic plate being carried out to equipment for coating film and the film covering method of overlay film.
Background technology
At present, the features such as metal material is hard with its good leak tightness, quality, good springiness, resistance photosensitiveness is good, gas barrier property is good, than packaging material such as plastics, paper, glass, at packaging field always in occupation of very important status, traditional metal packing material adopts spraying coating process resin bed in the coating of metal can inner surface to make, yet in this preparation technology, have toxic solvent volatilization, and the low molecular migration thing in coating can affect the safety of packaged food, while spraying equipment and complex process, need to consume a large amount of scarce resources, cost is expensive.
In order to address the above problem, people developed by polyolefin film (for example PE film, PP film) under low temperature environment by resin bonded laminate by the film coating technique of polyolefin film and metallic plate laminating, but because polyolefin film mostly is low polymer, these low-molecular materials easily diffusion are exuded to film surface, therefore be not suitable as the direct contact material of Food & Drink, and polyolefin is fitted in to the complex process on metallic plate, cost is high.
Due to polyester film, there is the features such as mechanical strength is high, good in optical property, serviceability temperature is wide, barrier property is good, oil resistant, corrosion-resistant, cost is low, environmental protection and energy saving, people start to attempt replacing polyolefin film to paste to metallic plate with polyester film and are used as packaging material, yet, also do not use at present adhesive polyester film directly can be fitted on metallic plate to prepare equipment for coating film and film covering method.
Summary of the invention
The invention provides a kind of equipment for coating film, by overlay film unit and quenching unit in this equipment, can realize and not use adhesive directly to paste on metallic plate polyester film, thereby prepare the film-covered metal plate that there is no adhesive.
The present invention also provides a kind of film covering method, by using above-mentioned equipment for coating film, make polyester film pass through under high temperature, hyperbaric environment directly to fit with metallic plate, and then through sharply cooling manufacture membrane and metallic plate well paste and do not contain the film-covered metal plate of adhesive.
A kind of equipment for coating film provided by the invention, for metallic plate being pasted to polyester film to obtain film-covered metal plate under adhesive-free condition, described equipment for coating film at least comprises that overlay film unit, pressure provide unit and quenching unit; Wherein
Described overlay film unit forms by inner hollow and with overlay film roller and the auxiliary chill roll of cooling fluid system connectivity, described overlay film roller comprises fixed roll and action roller, and can provide the overlay film of realization to metallic plate under unit drives at pressure, described auxiliary chill roll is at least two, be arranged at respectively the outside of fixed roll and action roller and form expansion clearance, when described expansion clearance is set to fixed roll and action roller expanded by heating, just contacting with auxiliary chill roll;
Described fixed roll and action roller surface be the glue-line through polishing with surface all, and described auxiliary chill roll has the surface through mirror process;
Described quenching unit comprises air cooling equipment and the water-cooling groove setting gradually along film-covered metal plate direction of transfer, and described air cooling equipment has film-covered metal plate Transfer pipe.
In equipment for coating film of the present invention, fixed roll in described overlay film unit and action roller are for providing and make film-covered metal plate first product on the metallic plate that under unit drives, polyester film is fitted to heating at pressure, auxiliary chill roll in described overlay film unit, for contacting with action roller with fixed roll during with action roller expanded by heating at fixed roll, assists fixed roll and action roller to control its surperficial temperature.Further, described auxiliary chill roll can by up and down movably frame be arranged on the outside of described fixed roll and action roller and form expansion clearance, for realizing, control more accurately the contact of described auxiliary chill roll and described fixed roll and action roller or separated.Air cooling equipment in described quenching unit is the conventional air cooling equipment in this area.Described cooling fluid system can be cooling circulating water system.Described polishing, mirror process (can be also super mirror process) are this area conventional treatment means, as long as make glue-line surface there is no lines, assorted trace, does not affect the surface quality of the polyester film pasting.
In another specific embodiment of the present invention, described pressure provides unit to comprise two cover movement hydraulic devices, and described movement hydraulic device is connected with described action roller.Described movement hydraulic device for drive described action roller with the pressing of fixed roll with separated.In an embodiment of the invention, described pressure provides two cover movement hydraulic devices of unit be distributed in respectively the fore side of action roller and transmit side, for making on fixed roll pressure radially keep balance.Further, described movement hydraulic device is comprised of oil cylinder, turbine and worm leading screw and variable-frequency motor.
In equipment for coating film of the present invention, described equipment for coating film also comprises at least a set of exhibition film unit and drying unit, described exhibition film unit is for launching polyester film be transported to overlay film unit, and described drying unit is for being dried the film-covered metal plate from quenching unit.Further, described drying unit comprises squeezing water and the drying unit setting gradually along film-covered metal plate direction of transfer.Described squeezing water can be the conventional squeeze roll in this area.Described drying unit can be for example the conventional heated-air drying equipment in this area.In a specific embodiment of the present invention, described equipment for coating film comprises two cover exhibition film units, be symmetricly set in the both sides of described overlay film unit, for overlay film is carried out in metallic plate two sides simultaneously, and described exhibition film unit comprises out film machine, jockey pulley, film slewing rollers, nip rolls, and useless film collection apparatus, the wherein said film machine of opening comprises air-expanding shaft.During above-mentioned exhibition film unit work, drive film machine one volume polyester film is opened, by jockey pulley, film slewing rollers, nip rolls, and useless film collection apparatus launches polyester film, make it treating the smoothly motion smoothly of film-covered metal plate both sides, enter overlay film unit and treat that film-covered metal plate pastes.
In an embodiment of the invention, the roller footpath of described fixed roll and action roller is identical, and the roller footpath of described auxiliary chill roll is 1 with the roller footpath ratio of fixed roll or action roller: 3-4.The glue-line of described fixed roll and action roller adhering on surface can be silastic-layer, thickness is 10-15mm, described glue-line is for providing the apparent mass on good overlay film roller surface, to reduce the harmful effect of overlay film roller to film-covered metal plate product surface quality in overlay film process, therefore described glue-line should be the glue-line that process through fine finishining on surface, for example: surface is through the glue-line of polishing.Because auxiliary chill roll can directly contact with polyester film when polyester film is fitted metallic plate with overlay film roller, therefore the surface of described auxiliary chill roll should be the surface through mirror process, is preferably the chrome-plated surface through mirror process simultaneously.
The present invention also provides a kind of film covering method, utilizes above-mentioned equipment for coating film, and described method comprises:
1) by the polyester film being unfolded and treat that the metal heating plate of overlay film is delivered between the fixed roll and action roller of overlay film unit simultaneously, starting pressure provides unit simultaneously, drive overlay film roller that polyester film is fitted to and on metallic plate, makes film-covered metal plate first product, and to control overlay film roll surface temperature be 120-150 ℃ by pass into cooling fluid to overlay film roller and auxiliary chill roll inner chamber in said process;
2) air cooling equipment by quenching unit and water-cooling groove and by sharply cooling successively by made film-covered metal plate first product, and described in controlling sharply cooling velocity be each second temperature reduce by 70～80 ℃.
In said method, can make polyester film process flattened state by described exhibition film unit, further, can make to have on described polyester film by described exhibition film unit the tension force of 80-100N, in a specific embodiment of the present invention, by described exhibition film unit, making polyester film process flattened state comprises: under the air-expanding shaft unaerated state in driving film machine, first polyester film is rolled onto on air-expanding shaft, then be air-expanding shaft inflation, volume polyester film is thereon fixed on air-expanding shaft, then by described polyester film successively through jockey pulley, film slewing rollers, nip rolls extends to described useless film collection apparatus, part polyester film (not pasting the polyester film to metallic plate) is wrapped on described useless film collection apparatus, can make as required useless film collection apparatus collect again suitable polyester film (not pasting the polyester film to metallic plate), thereby make polyester film from open film machine to useless film collection apparatus in flattened state, and keep suitable tension force.
By described overlay film unit, at pressure, provide and on the metallic plate that under unit drives, polyester film is fitted to heating, make film-covered metal plate first product, then carry out sharply cooling comprising: when the metallic plate heating continues to pass through between the action roller and fixed roll of described overlay film unit, starting pressure provides unit, under it drives, polyester film and metallic plate carry out pressing, after the side fusing of polyester film near metallic plate, fit on metallic plate, make film-covered metal plate first product, then make this film-covered metal plate first product promptly enter quenching unit and carry out sharply cooling (constantly passing under the drive of the metallic plate between action roller and fixed roll, described action roller and fixed roll constantly rotate, film-covered metal plate first product enters quenching unit by sharply cooling under action roller and fixed roll turning effort).
Further, above-mentioned film-covered metal plate first product, can be further through the dry film-covered metal plate that obtains of described drying unit after sharply cooling.
In the method for the invention, described polyester film, for example, can be the polyester film of the middle record of patent 102108193A or 102070882A, and this metallic plate for example can be selected from the common metal in mental package field, as steel plate, chrome plating and aluminium alloy plate.
The inventor gropes to find, when overlay film roll temperature is during lower than 120 ℃, the polyester film apparent mass pasting is defective, when overlay film roll temperature surpasses 150 ℃, the silicon rubber on overlay film roller surface is warmmer, under the effect of pressure, and the polyester film melting away on overlay film roller surface is easy bonding, compound film quality is affected, so the temperature that should control in the method for the invention overlay film roller is between 120-150 ℃.Impact due to the metallic plate being heated (temperature is generally 240 ℃ of left and right), when the metallic plate laminating of polyester film and heating, the temperature on overlay film roller surface rises very fast, although the cycle water energy that its inside is connected with is taken away a part of heat, but the temperature that is also not enough to control overlay film roller surface is between 120-150 ℃, so also need the auxiliary chill roll that is arranged on overlay film roller top and the bottom to assist overlay film roller surface cooling.Before the temperature of overlay film roller raises due to the metallic plate heating, described auxiliary chill roll surface not with the Surface Contact of overlay film roller, rising along with the temperature of overlay film roller, the roller footpath of overlay film roller, because the expanded by heating of overlay film roller becomes greatly, makes auxiliary chill roll surface with help overlay film roller strap, to walk its surperficial heat with the Surface Contact of overlay film roller.
The solution of the present invention has following advantage:
1, the overlay film unit in equipment for coating film of the present invention can be realized at high temperature polyester film directly being pasted and on metallic plate, obtain film-covered metal plate first product, quenching unit can be realized sharply cooling this film-covered metal plate first product, finally polyester film can be made and metallic plate well pastes, and not containing the film-covered metal plate of adhesive, overcome traditional precoated metal board device and cannot not realize in the situation that there is no adhesive and directly polyester film is fitted to the defect on metallic plate;
2, film covering method of the present invention, simple to operate, production process is not used adhesive, there is not the volatilization of hazardous solvent, reduced the pollution to environment, and the precoated metal panel products sanitary safe of preparing, can, directly as the packaging material that meet food beverage industry requirement, overcome the film-covered metal plate that contains adhesive being obtained by traditional film-covered metal plate production equipment and technique and be not suitable for the direct problem as food, beverage packaging material.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the equipment for coating film of embodiment 2.
Fig. 2 is the enlarged drawing of Q part in the schematic diagram of equipment for coating film of embodiment 2.
Fig. 3 be the A of Fig. 1 to view, shown the sectional view of opening up the jockey pulley of film unit in the equipment for coating film of embodiment 2.
Fig. 4 is the B-B view of Fig. 2, has shown the sectional view of the auxiliary chill roll of overlay film unit in the equipment for coating film of embodiment 2.
Fig. 5 is the C-C view of Fig. 2, has shown the sectional view of the fixed roll of overlay film unit in the equipment for coating film of embodiment 2.
Fig. 6 is the D-D view of Fig. 1, has shown the sectional view of the airduct of air cooling equipment in the equipment for coating film of embodiment 2.
Fig. 7 is the E-E view of Fig. 1, has shown the sectional view of water-cooling groove in the equipment for coating film of embodiment 2.
Main description of reference numerals:
1 die-sinking machine 2 jockey pulleys
3 film slewing rollers 4 nip rolls
5 action roller 5 ' fixed rolls
6 auxiliary chill roll 8 polyester films
7 chrome platings (TFS), 10 workbench
9 movement hydraulic device 12 ground levels
11 useless film collection apparatus 14 water-cooling grooves
13 air cooling equipment 16 slewing rollers
15 squeezing water 21 spindle noses one
17 heated-air drying equipment 23 rollers
22 axillare one 25 axillares two
24 glue-line 27 handles
26 spindle nose 2 30 rollers
29 airducts
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the technical scheme of the embodiment of the present invention.
Embodiment 1 precoated metal board device of the present invention.
Equipment for coating film of the present invention, for metallic plate being pasted to polyester film to obtain film-covered metal plate under adhesive-free condition, described equipment for coating film at least comprises that overlay film unit, pressure provide unit and quenching unit; Wherein said overlay film unit forms by inner hollow and with overlay film roller and the auxiliary chill roll of cooling fluid system connectivity, described overlay film roller comprises fixed roll and action roller, and can provide the overlay film of realization to metallic plate under unit drives at pressure, described auxiliary chill roll is at least two, be arranged at respectively the outside of fixed roll and action roller and form expansion clearance, when described expansion clearance is set to fixed roll and action roller expanded by heating, just contacting with auxiliary chill roll; Described fixed roll and action roller surface be the glue-line through polishing with surface all, and described auxiliary chill roll has the surface through mirror process; Described quenching unit comprises air cooling equipment and the water-cooling groove setting gradually along film-covered metal plate direction of transfer, and described air cooling equipment has film-covered metal plate Transfer pipe.
The method of using the said equipment to carry out overlay film comprises:
1) by the polyester film being unfolded and treat that the metal heating plate of overlay film is delivered between the fixed roll and action roller of overlay film unit simultaneously, starting pressure provides unit simultaneously, drive overlay film roller that polyester film is fitted to and on metallic plate, makes film-covered metal plate first product, and to control overlay film roll surface temperature be 120-150 ℃ by pass into cooling fluid to overlay film roller and auxiliary chill roll inner chamber;
2) air cooling equipment by quenching unit and water-cooling groove and by sharply cooling successively by made film-covered metal plate first product, and described in controlling sharply cooling velocity be each second temperature reduce by 70～80 ℃.
The equipment for coating film of the present embodiment is produced film-covered metal plate can be under the condition of adhesive-free, the surface quality condition that makes metallic plate and polyester film can well paste needed temperature, pressure and polyester film is provided by the overlay film unit in equipment for coating film and quenching unit, having overcome traditional precoated metal board device cannot not realize in the situation that there is no adhesive and directly polyester film is fitted to the defect on metallic plate, avoid poisonous and hazardous adhesive volatilization, reduced the pollution to environment.
Embodiment 2 use the equipment for coating film shown in Fig. 1-2 according to the present invention film covering method prepare adhesive-free film-covered metal plate.
From Fig. 1-2, can find out, the equipment for coating film of the present embodiment comprises: be arranged on exhibition film unit, overlay film unit on workbench 10, pressure provides unit, and is successively set on quenching unit and the drying unit under workbench 10 along film-covered metal plate direction of transfer;
Described overlay film unit forms by inner hollow and with overlay film roller and the auxiliary chill roll 6 of cooling fluid system connectivity, described overlay film roller is divided into fixed roll 5 ' and action roller 5, described auxiliary chill roll 6 be separately positioned on fixed roll 5 ' and action roller 5 upper and lower outside and form expansion clearance, described expansion clearance just contacts with auxiliary chill roll while being set to fixed roll 5 ' and action roller 5 expanded by heating, in the equipment for coating film of the present embodiment, there are two cover exhibition film units, described exhibition film unit comprises out film machine 1, jockey pulley 2, film slewing rollers 3, nip rolls 4, and useless film collection apparatus 11, the wherein said film machine 1 of opening comprises air-expanding shaft, two cover exhibition film units are symmetricly set in respectively the both sides of overlay film unit, be used for launching described polyester film, make the equipment for coating film of the present embodiment to paste polyester film in metallic plate both sides.
In above-mentioned equipment for coating film, the action roller 5 of described overlay film roller provides unit to be connected with described pressure, described pressure provides unit to comprise movement hydraulic device 9, it is comprised of oil cylinder, turbine and worm leading screw and variable-frequency motor, and described movement hydraulic device 9 is for driving the pressing of described action roller 5 and fixed roll 5 ' or separated.Described action roller 5 and fixed roll 5 ' are upper with the surperficial silastic-layer through polishing, described glue-line has 15mm thickness, described auxiliary chill roll 6 has the chrome-plated surface through mirror process, the action roller 5 of described overlay film roller and the diameter of fixed roll 5 ' are 560mm in the present embodiment, and the diameter of described auxiliary chill roll is 150mm.
Described quenching unit comprises air cooling equipment 13 and the water-cooling groove 14 setting gradually along film-covered metal plate direction of transfer;
Described drying unit comprises the squeezing water 15 and heated-air drying equipment 17 setting gradually along film-covered metal plate direction of transfer.Described squeezing water 15 is comprised of two squeeze roll (not shown) of placing axisymmetricly.
When using described equipment for coating film to prepare adhesive-free film-covered metal plate, the water-cooling groove 14 of described equipment, squeezing water 15 can be arranged on ground below 12.
The following specifically describes the process of using above-mentioned equipment for coating film adhesive-free film-covered metal plate prepared according to the methods of the invention, wherein metallic plate is chrome plating, and polyester film is the polyester film that 14-30um is thick:
1) by described exhibition film unit, make polyester film process flattened state, and make to have on described polyester film the tension force of 80-100N, comprise: under the air-expanding shaft unaerated state in driving film machine 1, first polyester film 8 is rolled onto on air-expanding shaft, then be air-expanding shaft inflation, volume polyester film 8 is thereon fixed on air-expanding shaft, then by described polyester film 8 successively through jockey pulley 2, film slewing rollers 3, nip rolls 4, through between the action roller 5 and fixed roll 5 ' of described overlay film unit, extend on the useless film collection apparatus 11 of described useless film take-up unit, part polyester film (not pasting the polyester film to chrome plating) is wrapped on described useless film collection apparatus 11, can make as required useless film collection apparatus 11 collect again suitable polyester film (not pasting the polyester film to chrome plating), thereby make film from open film machine 1 to useless film collection apparatus 11 in flattened state, and keep the tension force of 80-100N.
2) described overlay film unit provides on the chrome plating 7 that under unit drives, the polyester film in flattened state is fitted to heating and makes film-covered metal plate first product at pressure, by the described overlay film roll surface temperature of the auxiliary control of the described auxiliary chill roll in overlay film unit, be 120-150 ℃, and by quenching unit, undertaken sharply cooling, and be dried and comprise by drying unit: in the overlay film roller of inner hollow and auxiliary chill roll 6, pass into recirculated water, then when the chrome plating 7 heating, (heating-up temperature of chrome plating should surpass polyester film fusing point, and can make polyester film near a side fusing of chrome plating, and polyester film does not melt away from the other side of chrome plating) while continuing to pass through between the action roller 5 of described overlay film unit and fixed roll 5 ', start described movement hydraulic device 9, described action roller 5 and fixed roll 5 ' pressing under it drives, and then the polyester film 8 and the chrome plating 7 that make to be positioned between action roller 5 and fixed roll 5 ' fit to obtain overlay film chrome plating first product, then make this overlay film chrome plating first product promptly enter quenching unit and carry out sharply cooling (constantly passing under the drive of the chrome plating 7 between action roller 5 and fixed roll 5 ', described action roller 5 and fixed roll 5 ' constantly rotate, overlay film chrome plating first product enters quenching unit under action roller 5 and fixed roll 5 ' turning effort), and described in controlling sharply cooling velocity be each second temperature reduce by 70～80 ℃, squeezing water 15 through cooled overlay film chrome plating first product sharply in described drying unit is dried and can becomes stay-in-grade overlay film chrome plating with heated-air drying equipment 17, between described squeezing water 15 and heated-air drying equipment 17, be provided with slewing rollers 16.In said method, controlling the pressure that described movement hydraulic device 9 acts on action roller is 4.5-6T, and the surface temperature of described overlay film roller is 120-150 ℃ (recirculated water being connected with by overlay film roller and auxiliary chill roll 6 inside is controlled).
In said method, at film 8, paste to before described chrome plating 7, between described auxiliary chill roll 6 and overlay film roller, there is expansion clearance, rising along with the temperature of overlay film roller, after the roller footpath of overlay film roller is heated, become large, make auxiliary chill roll 6 surfaces with help overlay film roller strap, to walk its surperficial heat with the Surface Contact of overlay film roller.
Fig. 3 be the A of Fig. 1 to view, shown the sectional view of opening up the jockey pulley of film unit in the present embodiment equipment for coating film, can find out that jockey pulley 2 is by two frame support.
Fig. 4 is the B-B view of Fig. 2, the sectional view that has shown the auxiliary chill roll 6 of overlay film unit in the present embodiment equipment for coating film, wherein auxiliary chill roll 6 can move up and down under the effect of handle 27, accurately to control the contact of auxiliary chill roll 6 and overlay film roller or separated, further improve the performance accuracy of equipment for coating film of the present invention.
Fig. 5 is the C-C view of Fig. 2, the sectional view that has shown the fixed roll 5 ' of overlay film unit in the equipment for coating film of the present embodiment, wherein axillare 1, axillare 2 25 are for supporting the overlay film roller of inner hollow, make overlay film roller can bear the pressure from movement hydraulic device, spindle nose 1, spindle nose 2 26, for being connected with pedestal, is lined with glue-line 24 outside the roller 23 of overlay film roller.
Fig. 6 is the D-D view of Fig. 1, has shown the sectional view of air cooling equipment airduct in the equipment for coating film of the present embodiment, and described air cooling equipment can be Air cooler, by airduct 29, to pasting the chrome plating of polyester film, carries out sharply cooling.
Fig. 7 is the E-E view of Fig. 1, has shown the sectional view of water-cooling groove in the equipment for coating film of the present embodiment, is connected with the recirculated water that did not have roller 30 in water-cooling groove, and the chrome plating that paste polyester film cooling through Air cooler carries out sharply cooling in this recirculated water.
Preferred version as the present embodiment, the equipment of the adhesive-free film-covered metal plate of the present embodiment comprises two cover movement hydraulic devices 9, be distributed in respectively the fore side of action roller and transmit side, make the pressure radially acting on overlay film roller fixed roll can keep balance, in the Air cooler of the present embodiment, be at least provided with two fans, the ventilating opening of this Air cooler is connected with fan, and described ventilating opening is at least provided with the steam vent of an arranged radially.
Use device fabrication film-covered metal plate of the present invention, the film-covered metal plate of producing does not have adhesive, can be directly as the packaging material that meet food beverage industry requirement, the adhesive film-covered metal plate that has overcome traditional film-covered metal plate technique one-tenth product is not suitable for the direct problem as food, beverage packaging material.
Claims (10)
1. an equipment for coating film, is characterized in that, for metallic plate being pasted to polyester film to obtain film-covered metal plate under adhesive-free condition, described equipment for coating film at least comprises that overlay film unit, pressure provide unit and quenching unit; Wherein
Described overlay film unit forms by inner hollow and with overlay film roller and the auxiliary chill roll of cooling fluid system connectivity, described overlay film roller comprises fixed roll and action roller, and can provide the overlay film of realization to metallic plate under unit drives at pressure, described auxiliary chill roll is at least two, be arranged at respectively the outside of fixed roll and action roller and form expansion clearance, when described expansion clearance is set to fixed roll and action roller expanded by heating, just contacting with auxiliary chill roll;
Described fixed roll and action roller surface be the glue-line through polishing with surface all, and described auxiliary chill roll has the surface through mirror process;
Described quenching unit comprises air cooling equipment and the water-cooling groove setting gradually along film-covered metal plate direction of transfer, and described air cooling equipment has film-covered metal plate Transfer pipe.
2. equipment for coating film according to claim 1, wherein, described equipment for coating film also comprises at least a set of exhibition film unit and drying unit, and described exhibition film unit is for launching polyester film be transported to overlay film unit, and described drying unit is for being dried the film-covered metal plate from quenching unit.
3. equipment for coating film according to claim 2, wherein, described drying unit comprises squeezing water and the drying unit setting gradually along film-covered metal plate direction of transfer.
4. equipment for coating film according to claim 2, wherein, described equipment for coating film comprises two covers exhibition film units, is symmetricly set in the both sides of described overlay film unit.
5. equipment for coating film according to claim 1, wherein, described pressure provides unit to comprise two cover movement hydraulic devices, and described movement hydraulic device is connected with described action roller.
6. equipment for coating film according to claim 5, wherein, described movement hydraulic device is comprised of oil cylinder, turbine and worm leading screw and variable-frequency motor.
7. equipment for coating film according to claim 1, the glue-line of described fixed roll and action roller adhering on surface is silastic-layer, thickness is 10-15mm.
8. equipment for coating film according to claim 1, the surface of described auxiliary chill roll is the chrome-plated surface through mirror process.
9. according to the equipment for coating film described in claim 1-8 any one, the roller footpath of described fixed roll and action roller is identical, and the roller footpath of described auxiliary chill roll is 1 with the roller footpath ratio of fixed roll or action roller: 3-4.
10. a film covering method, utilizes the equipment for coating film described in claim 1-9 any one, and under adhesive-free condition, overlay film is prepared film-covered metal plate, and described method comprises:
1) by the polyester film being unfolded and treat that the metal heating plate of overlay film is delivered between the fixed roll and action roller of overlay film unit simultaneously, starting pressure provides unit simultaneously, drive overlay film roller that polyester film is fitted to and on metallic plate, makes film-covered metal plate first product, and to control overlay film roll surface temperature be 120-150 ℃ by pass into cooling fluid to overlay film roller and auxiliary chill roll inner chamber in said process;
2) air cooling equipment by quenching unit and water-cooling groove and by sharply cooling successively by made film-covered metal plate first product, and described in controlling sharply cooling velocity be each second temperature reduce by 70～80 ℃.
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| WO2018001179A1 (en) | 2016-06-28 | 2018-01-04 | 宝山钢铁股份有限公司 | Method and device for producing film-coated metal plate |
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| CN103832062A (en) * | 2014-03-13 | 2014-06-04 | 冯超 | Coating film pressing device |
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| CN107825760B (en) * | 2017-10-27 | 2019-08-02 | 重庆恒茂包装制品有限公司 | Two-sided automatic film covering equipment and woven bag system of processing |
| CN108943732A (en) * | 2018-06-06 | 2018-12-07 | 常州欧邦机械有限公司 | A kind of preparation method of metal film coated plate |
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| CN101301801A (en) * | 2008-02-01 | 2008-11-12 | 廖新春 | Metal composite polyethylene waterproof membrane board and production method thereof |
| CN201390008Y (en) * | 2009-04-13 | 2010-01-27 | 南京联众机电制造有限公司 | Steel plate plastic-coating production device |
| CN102019812A (en) * | 2009-09-18 | 2011-04-20 | 张海荣 | Fast guide plate of film-compression port of laminating machine |
| CN202337044U (en) * | 2011-11-24 | 2012-07-18 | 奥瑞金包装股份有限公司 | Laminating equipment |
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| WO2018001179A1 (en) | 2016-06-28 | 2018-01-04 | 宝山钢铁股份有限公司 | Method and device for producing film-coated metal plate |
| EP3476596A4 (en) * | 2016-06-28 | 2020-06-10 | Baoshan Iron & Steel Co., Ltd. | Method and device for producing film-coated metal plate |
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