CN102877321B - 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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- CN102877321B CN102877321B CN201210377865.0A CN201210377865A CN102877321B CN 102877321 B CN102877321 B CN 102877321B CN 201210377865 A CN201210377865 A CN 201210377865A CN 102877321 B CN102877321 B CN 102877321B
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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 manufacture field thereof, particularly a kind of coating process and Special coating machine thereof that utilizes dual-component polyurethane to manufacture Synthetic Leather.
Background technology
At present, the production method of Synthetic Leather mainly contains dry method and the large class of wet method two, these two kinds of methods all adopt a fluid polyurethane resin granular material are dissolved in and in organic solvent, form slurry, and then slurry blade coating is formed to wet coating layer at base on just with coating machine, the former is through heat drying, the latter solidify through water displacement and to product, no matter be heat drying or solidifying its polyurethane solidifying body obtaining 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 by two one component liquid polyurethanes, be coated in and have the upper of surface release liners, cover one deck base cloth simultaneously, through heating, foaming makes the polyurethane artificial leather that contains more micropore in the middle of cortex, 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 high-quality polyurethane artificial leather.But two component liquid polyurethane gelation rates are fast and have a very strong adhesion, existing coating process is the coating machine that adopts fixed painting cutter, this coating machine is in the time of 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, makes to produce and cannot carry out.
Summary of the invention
The present invention overcomes above-mentioned weak point, it is a kind of in the time of blade coating dual-component polyurethane compound that object 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, release liners is watered dual-component polyurethane compound to be sprinkled upon in release liners through the gap of a pair of applicator roll, by coating clearance by even dual-component polyurethane compound blade coating in release liners, coating by clamping between base material and release liners, avoid dual-component polyurethane compound to stick to the object that gel occurs on applicator roll, effectively control coating layer thickness, obtain 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 gap (its gap is adjustable) that a pair of applicator roll forms as coating layer thickness, base material is wrapped on applicator roll as upper barrier film through gap, has intercepted dual-component polyurethane and has contacted with the direct of upper applicator roll; Release liners (surface layer) is close to lower applicator roll as lower barrier film through gap below base material.This reverse synchronous rotation to upper and lower applicator roll moves forward release liners (surface layer) and base material, dual-component polyurethane compound waters in 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, dual-component polyurethane coating by clamping between base material and release liners, coating sticks on base material through the slaking of heating, and peels off release liners and obtains dual-component polyurethane synthetic leather.This equipment has adopted upper lower diaphragm plate mode to avoid dual-component polyurethane compound to contact with the direct of applicator roll, thereby make dual-component polyurethane compound can not stick to the object on applicator roll, avoid sticking to because of gel the production disruption that the edge of a knife occurs, 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, comprises the following steps:
1) Special coating machine is provided with a pair of applicator roll being arranged above and below, and the spacing of upper applicator roll and lower applicator roll forms a coating clearance;
2) base material is connected to winder I and is wrapped on applicator roll through coating clearance; Release liners is connected to winder II through coating clearance and goes up and abut against on lower applicator roll, form dual-component polyurethane with base material and be coated with lamellar spacing;
3) dual-component polyurethane mixed slurry is watered and is sprinkled upon in release liners, by coating clearance, dual-component polyurethane compound blade coating is formed to coating in release liners, quilt clamping are between base material and release liners;
4) coating is heated exfoliated paper after slaking obtains dual-component polyurethane synthetic leather.
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 being arranged above and below is a pair of reverse synchronous rotary.
As preferably, the described a pair of applicator roll being 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 being arranged above and below can be alternative with platform by being coated with cutter, 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, between upper applicator roll and lower applicator roll, be provided with gap, 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, release liners guide roller.
As preferably, the gap capable of regulating being provided with between described upper applicator roll and 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, rotating speed equidirectional phase reaction force is passed to upper applicator roll, lower applicator roll, drive base material, release liners (surface layer) clamping dual-component polyurethane mixing head to water the dual-component polyurethane layer compound spilling by upper applicator roll, lower applicator roll, obtain 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 to adjust eccentric shaft and rotate, make left dual-component polyurethane coating layer thickness regulating arm increase or decline; The right dual-component polyurethane coating layer thickness can be adjusted motor through right dual-component polyurethane coating layer thickness, right dual-component polyurethane coating layer thickness is adjusted worm screw, right dual-component polyurethane coating layer thickness adjustment worm gear, driven right dual-component polyurethane coating layer thickness to adjust eccentric shaft transmission, makes right dual-component polyurethane coating layer thickness regulating arm increase or declines.
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, rotating speed equidirectional phase reaction force is passed to upper applicator roll, lower applicator roll, active synchronization wheel drives driven synchronizing wheel to rotate the direction that makes power release liners guide roller and lower applicator roll by Timing Belt, linear velocity is consistent, form a plane with release liners supporting plate, upper applicator roll, lower applicator roll, power release liners guide roller drives base material, release liners, dual-component polyurethane compound waters to be sprinkled upon and on the surface layer that adheres to release liners, obtains a controlled dual-component polyurethane compound flow time, 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, between upper applicator roll and lower applicator roll, be provided with gap, base material guide roller, release liners guide roller are located at respectively frame top and bottom, upper applicator roll is fixed in frame, be arranged between base material guide roller, release liners guide roller, the setting corresponding to upper applicator roll of lower applicator roll, lower applicator roll is connected with motor.
Beneficial effect of the present invention is: 1, adopt base material, dual-component polyurethane, release liners to produce dual-component polyurethane synthetic leather through the space mode of a pair of reverse synchronism mechanism, 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 effectively prevent that dual-component polyurethane compound runs off, and waters equably dual-component polyurethane compound and is sprinkled upon on base material; 4, reduce production link, improved production capacity, and significantly reduced energy resource consumption and environmental pollution, obtained the Synthetic Leather of high-quality.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the reverse synchronism mechanism of the embodiment of the present invention 1;
Fig. 3 is the structural representation of the clearance adjustment mechanism of the embodiment of the present invention 1;
Fig. 4 a and 4b are the structural representations that the dual-component polyurethane of the embodiment of the present invention 1 is manufactured Synthetic Leather Special coating machine;
Fig. 5 is the structural principle schematic diagram of the embodiment of the present invention 2;
Fig. 6 is the structural representation of the reverse synchronism mechanism of the embodiment of the present invention 2;
Fig. 7 is the structural representation of the clearance adjustment mechanism of the embodiment of the present invention 2;
Fig. 8 a and 8b are the structural representations that the dual-component polyurethane of the embodiment of the present invention 2 is manufactured Synthetic Leather Special coating machine;
Fig. 9 is the structural principle schematic diagram that the dual-component polyurethane of the embodiment of the present invention 3 is manufactured Synthetic Leather Special coating machine;
Figure 10 is the structural representation of applicator roll in the embodiment of the present invention 3;
In 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
Below in conjunction with specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in this:
Embodiment 1: as Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, dual-component polyurethane synthetic leather Special coating machine, 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, gap, upper right 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 in frame, lower applicator roll 10 is arranged on base material guide roller 7, in the middle of 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 in frame 14, the two ends, left and right of upper applicator roll 6 are fixed on left dual-component polyurethane coating layer thickness regulating arm 5 and right dual-component polyurethane coating layer thickness regulating arm 17 by 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, 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, rotating speed equidirectional phase reaction force is passed to upper applicator roll 6, lower applicator roll 10, upper applicator roll 6, lower applicator roll 10 reverse movements, drive base material, release liners (surface layer) and dual-component polyurethane mixing head to water the middle level dual-component polyurethane coating of spilling by upper applicator roll 6, lower applicator roll 10, obtain 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 lower applicator roll 10 is adjusted motor 25 by left dual-component polyurethane coating layer thickness and is driven left dual-component polyurethane coating layer thickness adjustment worm screw 24 to move, left dual-component polyurethane coating layer thickness is adjusted the transmission of worm gear 22, driving left dual-component polyurethane coating layer thickness to adjust eccentric shaft 23 rotates, make left dual-component polyurethane coating layer thickness regulating arm 5 rise or decline, reach the object of controlling dual-component polyurethane coating layer thickness; Right dual-component polyurethane coating layer thickness is adjusted motor 18 and is driven right dual-component polyurethane coating layer thickness to adjust that worm screw 21 moves, right dual-component polyurethane coating layer thickness is adjusted worm gear 20 motions and driven right dual-component polyurethane coating layer thickness to adjust eccentric shaft 19 transmissions, make right dual-component polyurethane coating layer thickness regulating arm 17 rise or decline, reach the object of controlling 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 need applicator roll 6 to promote in maintenance process, open cylinder 15 and upper right applicator roll by upper left applicator roll and open cylinder 16 and pull respectively corresponding left dual-component polyurethane coating layer thickness regulating arm 5, right dual-component polyurethane coating layer thickness regulating arm 17 that upper applicator roll 6 is promoted.
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), by two one component liquid polyurethanes, water and be sprinkled upon on the surface layer that adheres to release liners (surface layer), cover one deck base material simultaneously, obtain 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, dual-component polyurethane compound is watered be sprinkled upon on the surface layer that adheres to release liners to obtain a controlled dual-component polyurethane compound flow time, 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.
As Fig. 5, Fig. 6, Fig. 7, shown in Fig. 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 in frame 14 by bearing axle bed, lower applicator roll 10 is arranged on base material guide roller 7, in the middle of 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 in frame 14, the two ends, left and right of upper applicator roll 6 are fixed on left dual-component polyurethane coating layer thickness regulating arm 5 and right dual-component polyurethane coating layer thickness regulating arm 17 by 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, lower applicator roll 10 is connected with lower applicator roll power transmission shaft 8, between release liners guide roller 11 and lower applicator roll 10, be provided with release liners supporting plate 9,
Motor 1 passes through transfer case 2 respectively through upper applicator roll power transmission shaft 3, lower applicator roll power transmission shaft 8, rotating speed equidirectional phase reaction force is passed to upper applicator roll 6, lower applicator roll 10, 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 lower applicator roll power transmission shaft 8, one end of power release liners guide roller 11 is provided with driven synchronizing wheel 28, active synchronization wheel 26 drives driven synchronizing wheel 28 to rotate by Timing Belt 27, thereby makes power release liners guide roller 11 have identical direction and linear velocity with lower applicator roll 10.
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), dual-component polyurethane compound waters to be sprinkled upon and on the surface layer that adheres to release liners, obtains a controlled dual-component polyurethane compound flow time, 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 lower applicator roll 10 is adjusted motor 25 by left dual-component polyurethane coating layer thickness and is driven left dual-component polyurethane coating layer thickness adjustment worm screw 24 to move, left dual-component polyurethane coating layer thickness is adjusted the transmission of worm gear 22, driving left dual-component polyurethane coating layer thickness to adjust eccentric shaft 23 rotates, make left dual-component polyurethane coating layer thickness regulating arm 5 rise or decline, reach the object of controlling dual-component polyurethane coating layer thickness; Right dual-component polyurethane coating layer thickness is adjusted motor 18 and is driven right dual-component polyurethane coating layer thickness adjustment worm screw 21 to move, right dual-component polyurethane coating layer thickness is adjusted worm gear 20 motions and is driven right dual-component polyurethane coating layer thickness to adjust eccentric shaft 19 transmissions, make right dual-component polyurethane coating layer thickness regulating arm 17 rise or decline, reach the object of controlling 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 need applicator roll 6 to promote in maintenance process, open cylinder 15 and upper right applicator roll by upper left applicator roll and open cylinder 16 and pull respectively corresponding left dual-component polyurethane coating layer thickness regulating arm 5, right dual-component polyurethane coating layer thickness regulating arm 17 that upper applicator roll 6 is promoted.
Producing, sometimes need applicator roll 6 to promote in maintenance process, open cylinder 15 and upper right applicator roll by upper left applicator roll and open cylinder 16 and pull respectively corresponding left dual-component polyurethane coating layer thickness regulating arm 5, right dual-component polyurethane coating layer thickness regulating arm 17 that upper applicator roll 6 is promoted.
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, upper applicator roll 6 is unpowered roller, lower applicator roll 10 rotates under motor 1 drives, upper applicator roll 6 is under winder I31 pulls, 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 rotates release liners (surface layer) and base material is moved forward under motor 1 drives, as shown in figure 10, dual-component polyurethane waters and is sprinkled upon, in the release liners (surface layer) of lower applicator roll front end, reach with release liners (surface layer) is passed through upper, lower applicator roll gap squeezes out uniform coating, dual-component polyurethane coating by clamping between base material and release liners, coating sticks on base material through the slaking of heating, peel off release liners and obtain dual-component polyurethane synthetic leather.
This equipment adopts gap (its gap is adjustable) that a pair of applicator roll forms as coating thickness, and base material is wrapped on applicator roll 6 as upper barrier film through gap, has intercepted dual-component polyurethane and has contacted with the direct of upper applicator roll 6; Release liners (surface layer) is close to barrier film under lower applicator roll 10 conducts through gap below base material.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 significantly reduce energy resource consumption and environmental pollution, obtain the dual-component polyurethane synthetic leather of high-quality.
Described in above, 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 producing does not exceed spiritual that description and accompanying drawing contain yet, must belong to protection scope of the present invention.
Claims (2)
1. the Special coating machine of dual-component polyurethane synthetic leather, comprise frame (14), base material guide roller (7), release liners guide roller, characterized by further comprising reverse synchronism mechanism, described reverse synchronism mechanism comprises applicator roll (6) and lower applicator roll (10), between upper applicator roll (6) and lower applicator roll (10), be provided with gap, base material guide roller (7), release liners guide roller is located at respectively the upper napex of frame (14) and bottom, reverse synchronism mechanism is arranged on base material guide roller (7), between release liners guide roller, the gap capable of regulating being provided with between described upper applicator roll (6) and lower applicator roll (10), 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), passes to upper applicator roll (6) by rotating speed equidirectional phase reaction force, lower applicator roll (10), by upper applicator roll (6), lower applicator roll (10) drives base material, release liners (surface layer) clamping dual-component polyurethane mixing head waters the dual-component polyurethane compound spilling, through upper applicator roll (6), lower applicator roll (10) blade coating, the slaking of heating obtains dual-component polyurethane synthetic leather, and reverse synchronism mechanism also includes clearance adjustment mechanism, and clearance adjustment mechanism comprises left dual-component polyurethane coating layer thickness adjustment 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 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), 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 to adjust eccentric shaft (23) and rotate, make left dual-component polyurethane coating layer thickness regulating arm (5) increase or decline, the right dual-component polyurethane coating layer thickness can be adjusted motor (18) through right dual-component polyurethane coating layer thickness, right dual-component polyurethane coating layer thickness is adjusted worm screw (21), right dual-component polyurethane coating layer thickness adjustment worm gear (20), driven right dual-component polyurethane coating layer thickness to adjust eccentric shaft (19) transmission, makes right dual-component polyurethane coating layer thickness regulating arm (17) increase or declines.
2. the Special coating machine of dual-component polyurethane synthetic leather according to claim 1, 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), rotating speed equidirectional phase reaction force is passed to upper applicator roll (6), lower applicator roll (10), active synchronization wheel (26) drives driven synchronizing wheel (28) to rotate the direction that makes power release liners guide roller (11) and lower applicator roll (10) by Timing Belt (27), 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, dual-component polyurethane compound waters to be sprinkled upon and on the surface layer that adheres to release liners, obtains a controlled dual-component polyurethane compound flow time, then through upper applicator roll (6), lower applicator roll (10) blade coating, the slaking of heating obtains synthetic leather.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| 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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| CN102877321B true CN102877321B (en) | 2014-06-25 |
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