CN102877321A - Coating method of two-component polyurethane synthetic leather and coating machine special for two-component polyurethane synthetic leather - Google Patents
Coating method of two-component polyurethane synthetic leather and coating machine special for two-component polyurethane synthetic leather Download PDFInfo
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- CN102877321A CN102877321A CN2012103778650A CN201210377865A CN102877321A CN 102877321 A CN102877321 A CN 102877321A CN 2012103778650 A CN2012103778650 A CN 2012103778650A CN 201210377865 A CN201210377865 A CN 201210377865A CN 102877321 A CN102877321 A CN 102877321A
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Abstract
The invention relates to a synthetic leather and the production field of the synthetic leather, particularly to a coating method for producing a polyurethane synthetic leather by using two-component polyurethane and a coating machine special for the two-component polyurethane synthetic leather. The coating method includes penetrating a base material and release paper through gaps of a pair of coating rolls, spraying a two-component polyurethane mixture on the release paper, evenly blade coating the two-component polyurethane mixture on the release through the coating gaps, and clamping the coating between the base material and the release paper. The coating method of two-component polyurethane synthetic leather and the coating machine special for the two-component polyurethane synthetic leather have the advantages that the two-component polyurethane does not contact with the coating rolls directly, but contacts with the base material and the release paper (surface layer), so that production interruption due to the fact that gel adheres to a knife edge is avoided; the coating machine can adjusts the thickness of the two-component polyurethane accurately; the two-component polyurethane mixture can be prevented from running away and can be evenly sprayed on the base material; and production links are reduced, the capacity is improved, energy consumption and environmental pollution are reduced substantially, and the high-quality polyurethane synthetic leather is obtained.
Description
Technical field
The present invention relates to synthetic leather and manufacturing field thereof, particularly a kind of coating process and Special coating machine thereof that utilizes dual-component polyurethane to make Synthetic Leather.
Background technology
At present, the production method of Synthetic Leather mainly contains dry method and wet method two large classes, these two kinds of methods all adopt a fluid polyurethane resin granular material is dissolved in and form slurry in the organic solvent, and then with coating machine the slurry blade coating is just formed the wet coating layer at base, the former is through heat drying, the latter solidify through water displacement and to product, no matter be heat drying or solidifying its resulting polyurethane solidifying body through water displacement all belongs to crystalline state, its molecule and molecule are in bond state, so its physical property is also brought into play less than optimum state.
I am through years of researches, lot of experiments, a kind of method (the method patent applied for that utilizes two component liquid polyurethane manufacturer fabricate-leather is proposed, number of patent application: 201110169843.0, patent name: a kind of method of utilizing two component liquid polyurethane manufacturer fabricate-leather), the method is with a kind of pair of component liquid polyurethane, be coated in and have the upper of surface release liners, cover simultaneously one deck base cloth, the polyurethane artificial leather that in the middle of the foaming of heating makes cortex, contains more micropore, the method can increase substantially the physical property of product, reduce production link and improved production capacity, significantly reduce energy resource consumption and environmental pollution, and successfully make the high-quality polyurethane artificial leather.But two component liquid polyurethane gelation rates are fast and very strong adhesion arranged, existing coating process is to adopt the fixed coating machine that is coated with cutter, this coating machine is when blade coating dual-component polyurethane compound, and compound can and stick to the edge of a knife at coating edge of a knife generation gel, and production can't be carried out.
Summary of the invention
The present invention overcomes above-mentioned weak point, it is a kind of when blade coating dual-component polyurethane compound that purpose is to provide, sizing material can and not stick to edge of a knife coating process at coating edge of a knife generation gel, adopt base material, the gap that release liners is passed a pair of applicator roll is watered the dual-component polyurethane compound and is sprinkled upon on the release liners, by coating clearance with the even blade coating of dual-component polyurethane compound on release liners, coating by clamping between base material and release liners, avoid the dual-component polyurethane compound to stick to the purpose that gel occurs on the applicator roll, effectively the control coating layer thickness obtains the dual-component polyurethane synthetic leather by the slaking of heating.
Another object of the present invention is to be provided as a kind of dual-component polyurethane synthetic leather Special coating machine of realizing said method, this equipment adopts the formed gap of a pair of applicator roll (its gap is adjustable) as coating layer thickness, base material passes the gap and is wrapped on the applicator roll as upper barrier film, has intercepted dual-component polyurethane and has contacted with the direct of upper applicator roll; Release liners (surface layer) pass below the base material gap be close to lower applicator roll as under barrier film.This reverse synchronous rotation to upper and lower applicator roll moves forward release liners (surface layer) and base material, the dual-component polyurethane compound waters on the release liners (surface layer) that is sprinkled upon upper and lower applicator roll front end, reach with release liners (surface layer) goes out uniform dual-component polyurethane coating by upper and lower applicator roll gap blade coating, the dual-component polyurethane coating by clamping between base material and release liners, coating sticks on the base material through the slaking of heating, and peels off release liners and obtains the dual-component polyurethane synthetic leather.This equipment has adopted upper lower diaphragm plate mode to avoid the dual-component polyurethane compound to contact with the direct of applicator roll, thereby make the dual-component polyurethane compound can not stick to purpose on the applicator roll, avoid sticking to the production disruption that the edge of a knife occurs because of gel, effectively control compound thickness, obtain even thickness, bonding firmly synthetic leather, utilize this technology to reduce production link and improve production capacity, significantly reduce energy resource consumption and environmental pollution, and successfully make high-quality dual-component polyurethane synthetic leather.
The present invention achieves the above object by the following technical programs: the coating process of dual-component polyurethane synthetic leather may further comprise the steps:
1) the Special coating machine is provided with a pair of applicator roll that is arranged above and below, and the spacing of upper applicator roll and lower applicator roll forms a coating clearance;
2) base material passes coating clearance and is connected to winder I and is wrapped on the applicator roll; Release liners is passed coating clearance, and to be connected to winder II upper and abut against on the lower applicator roll, forms dual-component polyurethane with base material and be coated with the lamellar spacing;
3) the dual-component polyurethane mixed slurry watered be sprinkled upon on the release liners, by coating clearance dual-component polyurethane compound blade coating is formed coating in release liners, by and clamping between base material and release liners;
4) coating is heated exfoliated paper obtains the dual-component polyurethane synthetic leather after the slaking.
As preferably, described base material refers to: cloth, nonwoven fabric, paper, natural leather, regenerated leather.
As preferably, described base material can be substituted by barrier film, and described barrier film refers to metal or nonmetally can intercept the film that dual-component polyurethane contacts with applicator roll.
As preferably, the applicator roll that the described a pair of applicator roll that is arranged above and below is a pair of reverse synchronous rotary.
As preferably, the described a pair of applicator roll that is arranged above and below, lower applicator roll is drive roll, upper applicator roll is driven roll.
As preferably, described coating clearance capable of regulating.
As preferably, the described a pair of applicator roll that is arranged above and below can substitute by being coated with cutter and platform, forms a coating clearance.
A kind of for realizing the coating machine of said method, comprise frame, base material guide roller, release liners guide roller, also include reverse synchronism mechanism, described reverse synchronism mechanism comprises applicator roll and lower applicator roll, be provided with the gap between upper applicator roll and the lower applicator roll, base material guide roller, release liners guide roller are located at respectively frame upper top and bottom, and reverse synchronism mechanism is arranged between base material guide roller, the release liners guide roller.
As preferably, the gap capable of regulating that is provided with between described upper applicator roll and the lower applicator roll.
As preferably, reverse synchronism mechanism comprises motor, transfer case, upper applicator roll power transmission shaft, lower applicator roll power transmission shaft, upper applicator roll, lower applicator roll; Motor by transfer case respectively through upper applicator roll power transmission shaft, lower applicator roll power transmission shaft, give upper applicator roll, lower applicator roll with the opposite transmission of power of rotating speed equidirectional, water the dual-component polyurethane layer compound that spills by upper applicator roll, lower applicator roll drive base material, release liners (surface layer) clamping dual-component polyurethane mixing head, obtain the dual-component polyurethane synthetic leather through upper applicator roll, lower applicator roll blade coating, the slaking of heating.
As preferably, reverse synchronism mechanism also includes clearance adjustment mechanism, and clearance adjustment mechanism comprises that left dual-component polyurethane coating layer thickness adjustment motor, left dual-component polyurethane coating layer thickness are adjusted worm screw, left dual-component polyurethane coating layer thickness is adjusted worm gear, right dual-component polyurethane coating layer thickness adjustment motor, right dual-component polyurethane coating layer thickness adjustment worm screw, right dual-component polyurethane coating layer thickness adjustment worm gear; Left dual-component polyurethane coating layer thickness is adjusted motor, left dual-component polyurethane coating layer thickness is adjusted worm screw, left dual-component polyurethane coating layer thickness adjustment worm-drive, drive left dual-component polyurethane coating layer thickness and adjust the eccentric shaft rotation, left dual-component polyurethane coating layer thickness regulating arm is risen or decline; The right dual-component polyurethane coating layer thickness can be adjusted worm gear through right dual-component polyurethane coating layer thickness adjustment motor, right dual-component polyurethane coating layer thickness adjustment worm screw, right dual-component polyurethane coating layer thickness, the right dual-component polyurethane coating layer thickness of drive is adjusted the eccentric shaft transmission, makes right dual-component polyurethane coating layer thickness regulating arm rising or decline.
As preferably, described reverse synchronism mechanism also comprises release liners supporting plate, power release liners guide roller, active synchronization wheel, Timing Belt, driven synchronizing wheel; Motor by transfer case respectively through upper applicator roll power transmission shaft, lower applicator roll power transmission shaft, give upper applicator roll with the opposite transmission of power of rotating speed equidirectional, lower applicator roll, the active synchronization wheel drives driven synchronizing wheel by Timing Belt and rotates the direction that makes power release liners guide roller and lower applicator roll, linear velocity is consistent, form a plane with the release liners supporting plate, upper applicator roll, lower applicator roll, power release liners guide roller drives base material, release liners, the dual-component polyurethane compound waters to be sprinkled upon and obtains a controlled dual-component polyurethane compound flow time on the surface layer that adheres to release liners, then through upper applicator roll, lower applicator roll blade coating, the slaking of heating obtains synthetic leather.
A kind of for realizing the coating machine of said method, comprise frame, base material guide roller, release liners guide roller, also include a pair of applicator roll, motor, upper applicator roll is unpowered roller, lower applicator roll is dynamic roller, be provided with the gap between upper applicator roll and the lower applicator roll, base material guide roller, release liners guide roller are located at respectively frame top and bottom, upper applicator roll is fixed on the frame, be arranged between base material guide roller, the release liners guide roller, the setting corresponding to upper applicator roll of lower applicator roll, lower applicator roll links to each other with motor.
Beneficial effect of the present invention is: the space mode that 1, adopts base material, dual-component polyurethane, release liners to pass a pair of reverse synchronism mechanism is produced the dual-component polyurethane synthetic leather, dual-component polyurethane is not directly contacted with applicator roll, and contact with base material, release liners (surface layer), avoid because of gel and stick to edge of a knife production development disruption; 2, coating machine can accurately be adjusted dual-component polyurethane thickness; 3, release liners (surface layer) can prevent effectively that the dual-component polyurethane compound runs off, and waters equably the dual-component polyurethane compound and is sprinkled upon on the base material; 4, reduce production link, improved production capacity, and decrease energy resource consumption and environmental pollution, obtained the Synthetic Leather of high-quality.
Description of drawings
Fig. 1 is the structural principle schematic diagram of the embodiment of the invention 1;
Fig. 2 is the structural representation of the reverse synchronism mechanism of the embodiment of the invention 1;
Fig. 3 is the structural representation of the clearance adjustment mechanism of the embodiment of the invention 1;
Fig. 4 a and 4b are the structural representations that the dual-component polyurethane of the embodiment of the invention 1 is made Synthetic Leather Special coating machine;
Fig. 5 is the structural principle schematic diagram of the embodiment of the invention 2;
Fig. 6 is the structural representation of the reverse synchronism mechanism of the embodiment of the invention 2;
Fig. 7 is the structural representation of the clearance adjustment mechanism of the embodiment of the invention 2;
Fig. 8 a and 8b are the structural representations that the dual-component polyurethane of the embodiment of the invention 2 is made Synthetic Leather Special coating machine;
Fig. 9 is the structural principle schematic diagram that the dual-component polyurethane of the embodiment of the invention 3 is made Synthetic Leather Special coating machine;
Figure 10 is the structural representation of applicator roll in the embodiment of the invention 3;
Among the figure: 1, motor; 2, transfer case; 3, upper applicator roll power transmission shaft; 4, bearing axle bed; 5, left dual-component polyurethane coating layer thickness regulating arm; 6, upper applicator roll; 7, base material guide roller; 8, lower applicator roll power transmission shaft; 9, release liners supporting plate; 10, lower applicator roll; 11, power release liners guide roller; 12, upper release liners guide roller; 13, lower release liners guide roller; 14, frame; 15, upper left applicator roll is opened cylinder; 16, upper right applicator roll is opened cylinder; 17, right dual-component polyurethane coating layer thickness regulating arm; 18, right dual-component polyurethane coating layer thickness is adjusted motor; 19, right dual-component polyurethane coating layer thickness is adjusted eccentric shaft; 20, right dual-component polyurethane coating layer thickness is adjusted worm gear; 21, right dual-component polyurethane coating layer thickness is adjusted worm screw; 22, left dual-component polyurethane coating layer thickness is adjusted worm gear; 23, left dual-component polyurethane coating layer thickness is adjusted eccentric shaft; 24, left dual-component polyurethane coating layer thickness is adjusted worm screw; 25, left dual-component polyurethane coating layer thickness is adjusted motor; 26, active synchronization wheel; 27, Timing Belt; 28, driven synchronizing wheel; 29, decelerator; 30, shaft coupling; 31, winder I; 32, winder II.
The specific embodiment
The present invention is described further below in conjunction with specific embodiment, but protection scope of the present invention is not limited in this:
Embodiment 1: such as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, dual-component polyurethane synthetic leather Special coating machine is by frame 14, base material guide roller 7, upper release liners guide roller 12, lower release liners guide roller 13, upper applicator roll 6, lower applicator roll 10, motor 1, transfer case 2, upper applicator roll power transmission shaft 3, lower applicator roll power transmission shaft 8, left dual-component polyurethane coating layer thickness regulating arm 5, upper left applicator roll is opened cylinder 15, left dual-component polyurethane coating layer thickness is adjusted motor 25, left dual-component polyurethane coating layer thickness is adjusted worm screw 24, left dual-component polyurethane coating layer thickness is adjusted worm gear 22, right dual-component polyurethane coating layer thickness regulating arm 17, upper right gap cylinder is opened cylinder 16, right dual-component polyurethane coating layer thickness is adjusted motor 18, right dual-component polyurethane coating layer thickness is adjusted worm screw 21, right dual-component polyurethane coating layer thickness is adjusted worm gear 20 and is formed;
Wherein: base material guide roller 7, the top that is separately fixed at frame 14 and the bottom of release liners guide roller, the bearing axle bed that passes through of lower applicator roll 10 is fixed on the frame, lower applicator roll 10 is arranged on base material guide roller 7, in the middle of the release liners guide roller, left dual-component polyurethane coating layer thickness regulating arm 5 and right dual-component polyurethane coating layer thickness regulating arm 17 are movably connected on the frame 14, the two ends, the left and right sides of upper applicator roll 6 are fixed on left dual-component polyurethane coating layer thickness regulating arm 5 and the right dual-component polyurethane coating layer thickness regulating arm 17 by the bearing axle bed respectively, motor 1 is connected with transfer case 2, transfer case 2 respectively with upper applicator roll power transmission shaft 3, lower applicator roll power transmission shaft 8 connects, upper applicator roll 6 is connected with upper applicator roll power transmission shaft 3, and lower applicator roll 10 is connected with lower applicator roll power transmission shaft 8;
Motor 1 passes through transfer case 2 respectively through upper applicator roll power transmission shaft 3, lower applicator roll power transmission shaft 8, give upper applicator roll 6, lower applicator roll 10 with the opposite transmission of power of rotating speed equidirectional, upper applicator roll 6, lower applicator roll 10 reverse movements, drive base material, release liners (surface layer) and dual-component polyurethane mixing head by upper applicator roll 6, lower applicator roll 10 and water the middle level dual-component polyurethane coating of spilling, obtain the dual-component polyurethane synthetic leather through upper applicator roll 6, lower applicator roll 10 blade coatings, the slaking of heating.
Gap between upper applicator roll 6 and the lower applicator roll 10 is adjusted motor 25 by left dual-component polyurethane coating layer thickness and is driven 24 motions of left dual-component polyurethane coating layer thickness adjustment worm screw, left dual-component polyurethane coating layer thickness is adjusted the transmission of worm gear 22, drive left dual-component polyurethane coating layer thickness and adjust eccentric shaft 23 rotations, make left dual-component polyurethane coating layer thickness regulating arm 5 rise or descend, reach the purpose of control dual-component polyurethane coating layer thickness; Right dual-component polyurethane coating layer thickness is adjusted 21 motions of the right dual-component polyurethane coating layer thickness adjustment of motor 18 drives worm screw, right dual-component polyurethane coating layer thickness is adjusted 19 transmissions of the right dual-component polyurethane coating layer thickness adjustment of worm gear 20 motion drives eccentric shaft, make right dual-component polyurethane coating layer thickness regulating arm 17 rise or descend, reach the purpose of control dual-component polyurethane coating layer thickness.
5 one-tenth sickleshapeds of left dual-component polyurethane coating layer thickness regulating arm, the other end of left dual-component polyurethane coating layer thickness regulating arm 5 is opened cylinder 15 with upper left applicator roll and is connected, 17 one-tenth sickleshapeds of right dual-component polyurethane coating layer thickness regulating arm, the other end of right dual-component polyurethane coating layer thickness regulating arm 17 is opened cylinder 16 with upper right applicator roll and is connected; Producing, sometimes needing applicator roll 6 to promote in the maintenance process, opening cylinder 15 and upper right applicator roll by upper left applicator roll and open cylinder 16 and spur respectively corresponding left dual-component polyurethane coating layer thickness regulating arm 5, right dual-component polyurethane coating layer thickness regulating arm 17 and make upper applicator roll 6 liftings.
This dual-component polyurethane synthetic leather Special coating machine does not directly contact dual-component polyurethane with upper applicator roll 6, lower applicator roll 10, and contact with base material, release liners (surface layer), with a kind of pair of component liquid polyurethane, water and be sprinkled upon on the surface layer that adheres to release liners (surface layer), cover simultaneously one deck base material, obtain the dual-component polyurethane synthetic leather through the slaking of heating; And utilize clearance adjustment mechanism, can adapt to the requirement of different-thickness; Utilize this technology to reduce production link and improve production capacity, significantly reduce energy resource consumption and environmental pollution, and successfully make high-quality dual-component polyurethane synthetic leather.
Embodiment 2: the dual-component polyurethane synthetic leather Special coating machine that the present embodiment provides and the difference of embodiment 1 are, set up release liners supporting plate 9, obtain a controlled dual-component polyurethane compound flow time on the surface layer that adheres to release liners so that the dual-component polyurethane compound waters to be sprinkled upon, then obtain even thickness, bonding firm, soft high-quality dual-component polyurethane synthetic leather through upper applicator roll 6, lower applicator roll 10 blade coatings.
Such as Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, dual-component polyurethane synthetic leather Special coating machine comprises motor 1, transfer case 2, upper applicator roll power transmission shaft 3, bearing axle bed 4, left dual-component polyurethane coating layer thickness regulating arm 5, upper applicator roll 6, base material guide roller 7, lower applicator roll power transmission shaft 8, release liners supporting plate 9, lower applicator roll 10, power release liners guide roller 11, upper release liners guide roller 12, lower release liners guide roller 13, frame 14, upper left applicator roll is opened cylinder 15, upper right applicator roll is opened cylinder 16, right dual-component polyurethane coating layer thickness regulating arm 17, right dual-component polyurethane coating layer thickness is adjusted motor 18, right dual-component polyurethane coating layer thickness is adjusted eccentric shaft 19, right dual-component polyurethane coating layer thickness is adjusted worm gear 20, right dual-component polyurethane coating layer thickness is adjusted worm screw 21, left dual-component polyurethane coating layer thickness is adjusted worm gear 22, left dual-component polyurethane coating layer thickness is adjusted eccentric shaft 23, left dual-component polyurethane coating layer thickness is adjusted worm screw 24, left dual-component polyurethane coating layer thickness is adjusted motor 25, active synchronization wheel 26, Timing Belt 27, driven synchronizing wheel 28;
Wherein: base material guide roller 7, the central shaft of release liners guide roller is separately fixed at top and the bottom of frame 14, the central shaft of lower applicator roll 10 is fixed on the frame 14 by the bearing axle bed, lower applicator roll 10 is arranged on base material guide roller 7, in the middle of the release liners guide roller, left dual-component polyurethane coating layer thickness regulating arm 5 and right dual-component polyurethane coating layer thickness regulating arm 17 are movably connected on the frame 14, the two ends, the left and right sides of upper applicator roll 6 are fixed on left dual-component polyurethane coating layer thickness regulating arm 5 and the right dual-component polyurethane coating layer thickness regulating arm 17 by the bearing axle bed respectively, motor 1 is connected with transfer case 2, transfer case 2 respectively with upper applicator roll power transmission shaft 3, lower applicator roll power transmission shaft 8 connects, upper applicator roll 6 is connected with upper applicator roll power transmission shaft 3, and lower applicator roll 10 is connected with lower applicator roll power transmission shaft 8; Be provided with release liners supporting plate 9 between release liners guide roller 11 and the lower applicator roll 10;
Motor 1 passes through transfer case 2 respectively through upper applicator roll power transmission shaft 3, lower applicator roll power transmission shaft 8, give upper applicator roll 6, lower applicator roll 10 with the opposite transmission of power of rotating speed equidirectional, upper applicator roll 6, lower applicator roll 10 reverse movements, power release liners guide roller 11, release liners supporting plate 9 and lower applicator roll 10 form a plane; Active synchronization wheel 26 is installed between lower applicator roll 10 and the lower applicator roll power transmission shaft 8, one end of power release liners guide roller 11 is equipped with driven synchronizing wheel 28, active synchronization wheel 26 drives driven synchronizing wheel 28 by Timing Belt 27 and rotates, thereby makes power release liners guide roller 11 with lower applicator roll 10 identical direction and linear velocity be arranged.
Because lower applicator roll 10, power release liners guide roller 11 their directions, linear velocity one finger and release liners supporting plate 9 form a plane, upper applicator roll 6, lower applicator roll 10, power release liners guide roller 11 drive base material, release liners (surface layer), the dual-component polyurethane compound waters to be sprinkled upon and obtains a controlled dual-component polyurethane compound flow time on the surface layer that adheres to release liners, then through upper applicator roll 6, lower applicator roll 10 blade coatings, heat, slaking obtains even thickness, bonding firm, soft high-quality dual-component polyurethane ester synthetic leather.
Gap between upper applicator roll 6 and the lower applicator roll 10 is adjusted motor 25 by left dual-component polyurethane coating layer thickness and is driven 24 motions of left dual-component polyurethane coating layer thickness adjustment worm screw, left dual-component polyurethane coating layer thickness is adjusted the transmission of worm gear 22, drive left dual-component polyurethane coating layer thickness and adjust eccentric shaft 23 rotations, make left dual-component polyurethane coating layer thickness regulating arm 5 rise or descend, reach the purpose of control dual-component polyurethane coating layer thickness; Right dual-component polyurethane coating layer thickness is adjusted motor 18 and is driven 21 motions of right dual-component polyurethane coating layer thickness adjustment worm screw, right dual-component polyurethane coating layer thickness is adjusted worm gear 20 motions and is driven 19 transmissions of right dual-component polyurethane coating layer thickness adjustment eccentric shaft, make right dual-component polyurethane coating layer thickness regulating arm 17 rise or descend, reach the purpose of control dual-component polyurethane coating layer thickness.
5 one-tenth sickleshapeds of left dual-component polyurethane coating layer thickness regulating arm, the other end of left dual-component polyurethane coating layer thickness regulating arm 5 is opened cylinder 15 with upper left applicator roll and is connected, 17 one-tenth sickleshapeds of right dual-component polyurethane coating layer thickness regulating arm, the other end of right dual-component polyurethane coating layer thickness regulating arm 17 is opened cylinder 16 with upper right applicator roll and is connected; Producing, sometimes needing applicator roll 6 to promote in the maintenance process, opening cylinder 15 and upper right applicator roll by upper left applicator roll and open cylinder 16 and spur respectively corresponding left dual-component polyurethane coating layer thickness regulating arm 5, right dual-component polyurethane coating layer thickness regulating arm 17 and make upper applicator roll 6 liftings.
Producing, sometimes needing applicator roll 6 to promote in the maintenance process, opening cylinder 15 and upper right applicator roll by upper left applicator roll and open cylinder 16 and spur respectively corresponding left dual-component polyurethane coating layer thickness regulating arm 5, right dual-component polyurethane coating layer thickness regulating arm 17 and make upper applicator roll 6 liftings.
Embodiment 3: the dual-component polyurethane synthetic leather Special coating machine that the present embodiment provides and the difference of embodiment 1 are, a pair of applicator roll, and upper applicator roll 6 is unpowered roller, lower applicator roll 10 turns under motor 1 drives and revolves; Upper applicator roll 6 is under winder I31 pulling, as shown in Figure 9, winder I31, winder II32 is synchronous, under base cloth and the effect of upper applicator roll cornerite, upper applicator roll 6 and then rotates, lower applicator roll 10 turns to revolve under motor 1 drives moves forward release liners (surface layer) and base material, as shown in figure 10, dual-component polyurethane waters and is sprinkled upon, on the release liners of lower applicator roll front end (surface layer), reach with release liners (surface layer) is passed through upper, lower applicator roll gap squeezes out uniform coating, the dual-component polyurethane coating by clamping between base material and release liners, coating sticks on the base material through the slaking of heating, and peels off release liners and obtains the dual-component polyurethane synthetic leather.
This equipment adopts the formed gap of a pair of applicator roll (its gap is adjustable) as coating thickness, and base material passes the gap and is wrapped on the applicator roll 6 as upper barrier film, has intercepted dual-component polyurethane and has contacted with the direct of upper applicator roll 6; Release liners (surface layer) pass below the base material gap be close to lower applicator roll 10 as under barrier film.Dual-component polyurethane is not directly contacted with applicator roll, and contact with base material, release liners (surface layer), avoid because of gel and stick to edge of a knife production development disruption; Can the decrease energy resource consumption and environmental pollution, obtain the dual-component polyurethane synthetic leather of high-quality.
Above described be specific embodiments of the invention and the know-why used, if the change of doing according to conception of the present invention when its function that produces does not exceed spiritual that specification and accompanying drawing contain yet, must belong to protection scope of the present invention.
Claims (13)
1. the coating process of dual-component polyurethane synthetic leather is characterized in that may further comprise the steps:
1) the Special coating machine is provided with a pair of applicator roll that is arranged above and below, and upper applicator roll (6) forms a coating clearance with the spacing of lower applicator roll (10);
2) base material passes coating clearance and is connected to winder I (31) and is wrapped on the applicator roll (6); Release liners is passed coating clearance, and to be connected to winder II (32) upper and abut against on the lower applicator roll (10), forms dual-component polyurethane with base material and be coated with the lamellar spacing;
3) the dual-component polyurethane mixed slurry watered be sprinkled upon on the release liners, by coating clearance dual-component polyurethane compound blade coating is formed coating in release liners, by and clamping between base material and release liners;
4) coating is heated exfoliated paper obtains the dual-component polyurethane synthetic leather after the slaking.
2. the coating process of dual-component polyurethane synthetic leather according to claim 1 is characterized in that described base material refers to: cloth, nonwoven fabric, paper, natural leather, regenerated leather.
3. the coating process of dual-component polyurethane synthetic leather according to claim 2 is characterized in that described base material can be substituted by barrier film, and described barrier film refers to metal or nonmetally can intercept the film that dual-component polyurethane contacts with applicator roll.
4. the coating process of the described dual-component polyurethane synthetic leather of arbitrary claim is characterized in that the applicator roll that the described a pair of applicator roll that is arranged above and below is a pair of reverse synchronous rotary according to claim 1-3.
5. the coating process of the described dual-component polyurethane synthetic leather of arbitrary claim is characterized in that the described a pair of applicator roll that is arranged above and below according to claim 1-3, and lower applicator roll (10) is drive roll, and upper applicator roll (6) is driven roll.
6. the coating process of the described dual-component polyurethane synthetic leather of arbitrary claim is characterized in that described coating clearance capable of regulating according to claim 1-3.
7. the coating process of dual-component polyurethane synthetic leather according to claim 1 is characterized in that the described a pair of applicator roll that is arranged above and below can substitute by being coated with cutter and platform, forms a coating clearance.
8. one kind is the coating machine of realizing the described method of claim 1, comprise frame (14), base material guide roller (7), the release liners guide roller, characterized by further comprising reverse synchronism mechanism, described reverse synchronism mechanism comprises applicator roll (6) and lower applicator roll (10), be provided with the gap between upper applicator roll (6) and the lower applicator roll (10), base material guide roller (7), the release liners guide roller is located at respectively frame (14) upper top and bottom, and reverse synchronism mechanism is arranged on base material guide roller (7), between the release liners guide roller.
9. coating machine according to claim 8 is characterized in that the gap capable of regulating that is provided with between described upper applicator roll (6) and the lower applicator roll (10).
10. coating machine according to claim 9 is characterized in that reverse synchronism mechanism comprises motor (1), transfer case (2), upper applicator roll power transmission shaft (3), lower applicator roll power transmission shaft (8), upper applicator roll (6), lower applicator roll (10); Motor (1) passes through transfer case (2) respectively through upper applicator roll power transmission shaft (3), lower applicator roll power transmission shaft (8), give upper applicator roll (6), lower applicator roll (10) with the opposite transmission of power of rotating speed equidirectional, water the dual-component polyurethane compound that spills by upper applicator roll (6), lower applicator roll (10) drive base material, release liners (surface layer) clamping dual-component polyurethane mixing head, obtain the dual-component polyurethane synthetic leather through upper applicator roll (6), lower applicator roll (10) blade coating, the slaking of heating.
11. coating machine according to claim 10, it is characterized in that reverse synchronism mechanism also includes clearance adjustment mechanism, clearance adjustment mechanism comprises that left dual-component polyurethane coating layer thickness adjustment motor (25), left dual-component polyurethane coating layer thickness are adjusted worm screw (24), left dual-component polyurethane coating layer thickness is adjusted worm gear (22), right dual-component polyurethane coating layer thickness adjustment motor (18), right dual-component polyurethane coating layer thickness adjustment worm screw (21), right dual-component polyurethane coating layer thickness adjustment worm gear (20); Left dual-component polyurethane coating layer thickness is adjusted motor (25), left dual-component polyurethane coating layer thickness is adjusted worm screw (24), the transmission of left dual-component polyurethane coating layer thickness adjustment worm gear (22), drive left dual-component polyurethane coating layer thickness and adjust eccentric shaft (23) rotation, left dual-component polyurethane coating layer thickness regulating arm (5) is risen or decline; The right dual-component polyurethane coating layer thickness can be adjusted worm gear (20) through right dual-component polyurethane coating layer thickness adjustment motor (18), right dual-component polyurethane coating layer thickness adjustment worm screw (21), right dual-component polyurethane coating layer thickness, the right dual-component polyurethane coating layer thickness of drive is adjusted eccentric shaft (19) transmission, makes right dual-component polyurethane coating layer thickness regulating arm (17) rising or decline.
12. coating machine according to claim 11 is characterized in that described reverse synchronism mechanism also comprises release liners supporting plate (9), power release liners guide roller (11), active synchronization wheel (26), Timing Belt (27), driven synchronizing wheel (28); Motor (1) passes through transfer case (2) respectively through upper applicator roll power transmission shaft (3), lower applicator roll power transmission shaft (8), give upper applicator roll (6) with the opposite transmission of power of rotating speed equidirectional, lower applicator roll (10), active synchronization wheel (26) drives driven synchronizing wheel (28) by Timing Belt (27) and rotates the direction that makes power release liners guide roller (11) and lower applicator roll (10), linear velocity is consistent, form a plane with release liners supporting plate (9), upper applicator roll (6), lower applicator roll (10), power release liners guide roller (11) drives base material, release liners, the dual-component polyurethane compound waters to be sprinkled upon and obtains a controlled dual-component polyurethane compound flow time on the surface layer that adheres to release liners, then through upper applicator roll (6), lower applicator roll (10) blade coating, the slaking of heating obtains synthetic leather.
13. one kind for realizing the coating machine of the described method of claim 1, comprise frame (14), base material guide roller (7), the release liners guide roller, characterized by further comprising a pair of applicator roll, motor (1), upper applicator roll (6) is unpowered roller, lower applicator roll (10) is dynamic roller, be provided with the gap between upper applicator roll (6) and the lower applicator roll (10), base material guide roller (7), the release liners guide roller is located at respectively frame (14) top and bottom, upper applicator roll (6) is fixed on the frame (14), be arranged on base material guide roller (7), between the release liners guide roller, lower applicator roll (10) links to each other with motor (1) with the corresponding setting of upper applicator roll (6), lower applicator roll (10).
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| CN201210377865.0A CN102877321B (en) | 2012-09-28 | 2012-09-28 | Coating method of two-component polyurethane synthetic leather and coating machine special for two-component polyurethane synthetic leather |
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| CN104499303A (en) * | 2014-11-28 | 2015-04-08 | 浙江康成新材料科技有限公司 | Transfer film leather production method |
| CN108311336A (en) * | 2018-01-26 | 2018-07-24 | 东莞市途锐机械有限公司 | A kind of coating machine |
| CN109395983A (en) * | 2018-12-19 | 2019-03-01 | 福建蓝美金属制品有限公司 | Equipment for manufacturing steel fibers in rows |
| CN110180733A (en) * | 2019-06-19 | 2019-08-30 | 连云港泰科复合材料有限公司 | A kind of coating head device coating acrylic acid |
| CN111809400A (en) * | 2020-07-17 | 2020-10-23 | 张�浩 | Method for producing artificial synthetic leather |
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