CN107638987B - Continuous coating unit of viscidity material - Google Patents
Continuous coating unit of viscidity material Download PDFInfo
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- CN107638987B CN107638987B CN201710841311.4A CN201710841311A CN107638987B CN 107638987 B CN107638987 B CN 107638987B CN 201710841311 A CN201710841311 A CN 201710841311A CN 107638987 B CN107638987 B CN 107638987B
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Abstract
The invention discloses a continuous coating device for viscous materials, which comprises a control unit, an unreeling unit, a coating and printing unit and a follow-up unit, wherein the unreeling unit, the coating and printing unit and the follow-up unit are sequentially arranged along the movement direction of a base material; the coating printing unit comprises a pressing roller, a driving silica gel roller and a driving steel roller which are stacked from top to bottom, the driving steel roller is immersed in a colloid pool filled with viscous materials, the base material is arranged between the pressing roller and the driving silica gel roller, the base material is supported on a supporting roller and moves along the centrifugal force direction of the upper vertex of the driving silica gel roller under the traction of power, and the colloid film is transferred to the surface of the base material. According to the invention, a rubber layer with a certain thickness is formed on the surface of the rubber roller under the extrusion, stretching and extension actions of the viscous material under two rollers with different rotating speeds and opposite rotating directions, and then the material is transferred to the surface of the continuously-fed base material by virtue of the pressing roller, so that a thin and uniform coating is formed, and the uniform spraying of the micron-level and submicron-level thickness and thinner-layer material on the surface of the base material is realized.
Description
Technical Field
The invention belongs to the technical field of printing machinery, and particularly relates to a device for spraying a thin-layer viscous material on a base material.
Background
The coating machine is widely used in tobacco industry, packaging industry and energy manufacturing industry, hot melt adhesive or other liquid viscous materials are required to be sprayed on the surface of a substrate or a base material in the industries, and then subsequent processes are combined to realize moisture prevention of cigarettes or manufacture of pole pieces of batteries. According to the requirements of the process and the product quality, a thin and uniform layer of colloid needs to be sprayed on the surface of the rolled substrate material. For example, high-grade environmental-friendly cigarettes in the tobacco industry are usually produced by coating a thin layer of hot melt adhesive on a polyethylene film to replace aluminum foil to prevent moisture so as to meet the organic environmental-friendly requirements.
The existing method usually adopts a rubber roller coating scheme, an embossing rubber roller is used for uniformly coating the adhesive on a coiled substrate running at a high speed, and the colloid obtained by spraying by the method has thicker and uneven thickness and is difficult to meet the application requirement. The chinese patent with application number 201310115571.5, "a coater structure", discloses a coater structure, wherein a driving web roller and a transfer rubber roller are fixed inside a feed tank, and a fitting press roller is fixed above the transfer rubber roller; production that can automatically regulated coating guarantees the even material loading of coating agent, effectively reduces the production of bubble, need not manual operation. However, the processes are all improved and deformed by the conventional process, and cannot realize uniform coating of the thin-surface glue layer, so that the special application requirements are difficult to meet.
Disclosure of Invention
The invention provides a device for coating a thin layer of viscous material or colloid on a substrate, which adopts a three-roller rotating structure, adopts a pair of active rotating rollers with opposite rotating directions and a certain rotating speed difference to extrude, stretch and extend the viscous material, and transfers the viscous material to the surface of the substrate by virtue of a press roller, thereby realizing the coating of the adhesive material on the surface of the substrate or a base in the continuous operation process of the substrate, and the adhesive layer is thin and uniform, thereby meeting the special use requirements.
The technical scheme of the invention is as follows:
a continuous coating device for viscous materials comprises a control unit, an unreeling unit, a coating and printing unit and a subsequent unit, wherein the unreeling unit, the coating and printing unit and the subsequent unit are sequentially arranged along the movement direction of a base material, and the base material is an aluminum foil, a copper foil or a plastic film;
the coating and printing unit comprises a press roller, a driving silica gel roller and a driving steel roller which are stacked from top to bottom, wherein the driving silica gel roller and the driving steel roller rotate in opposite directions and keep a micron-sized gap; the driving steel roller is immersed in a colloid pool containing viscous materials, the base material is arranged between the pressing roller and the driving silica gel roller, the base material is supported on the supporting roller and moves along the direction of the centrifugal force of the upper vertex of the driving silica gel roller under the traction of power, and the pressing roller presses the base material on the upper surface of the driving silica gel roller under the drive of the lifting unit; the driving steel roller adheres the viscous material to the surface of the roller body, a colloid film adhered to the surface of the driving silica gel roller is formed after extrusion and extension of a gap between the driving silica gel roller and the driving steel roller, and the colloid film is transferred to the surface of the base material through the compression roller.
The continuous coating device for the viscous materials further comprises a tension control unit arranged in the coating link; the tension control unit comprises a driving roller, a swing roller, a large gear, a small gear, a potentiometer, a swing rod, a cylinder and a control center; the swing rod is arranged along the vertical direction, the swing roller is arranged at the lower end of the swing rod, and the upper end of the swing rod is fixedly connected with the large gear and swings along the axis of the large gear; a piston rod of the air cylinder is fixed in the middle of the swing rod through a movable hinge and stretches along with the swing of the swing rod; the small gear is arranged on a shaft head of a rotating shaft of the potentiometer and is meshed with the large gear; the base material is arranged on the driving roller and the swing roller, the driving roller is provided with a power driving device, and the control center is electrically connected with the power driving device and the potentiometer.
In the continuous coating device for the viscous materials, the air cylinder is communicated with the air storage tank, the control center is electrically connected with the pressure regulating valve of the air storage tank, and the control center changes the parameters of the pressure regulating valve to realize the regulation of the output pressure of the air storage tank.
In the continuous coating device for the viscous material, the tension control device further comprises an upper rotating roller and a lower rotating roller, and the base material sequentially advances along the directions of the driving roller, the upper rotating roller, the swing roller and the lower rotating roller.
In the continuous coating device for the viscous material, the linear speed ratio of the rotating speed of the driving silica gel roller to the rotating speed of the driving steel roller is 1.1-1.5 times.
In the continuous coating device for the viscous materials, the gap between the driving silica gel roller and the driving steel roller is adjusted through the adjusting mechanism.
In the continuous coating device for the viscous material, the adjusting mechanism comprises a strip-shaped pressing plate arranged at the end of the driving silica gel roller, the fixed end of the strip-shaped pressing plate is movably connected to the frame through a hinge shaft, the movable end of the strip-shaped pressing plate is fixedly connected with the piston rod of the rubber roller cylinder through a hinge, and the movable end is finely adjusted up and down under the action of the rubber roller cylinder; the shaft end of the driving silica gel roller is fixedly connected with the middle part of the strip-shaped pressing plate in a supporting way.
In the continuous coating device for the viscous materials, the lower part of the movable end of the strip-shaped pressing plate is provided with the limiting block, the limiting block is fixed on the frame plate by screws, and the displacement of the limiting block is adjusted by fine threads.
In the continuous coating device for the viscous materials, the press roller, the driving silica gel roller and the driving steel roller are all of hollow shaft structures, the heating unit is arranged in the hollow shaft, and the heating unit is a heating rod or flowing medium heat conducting oil.
In the continuous coating device for the viscous materials, the moving speed of the base material is consistent with the linear speed of the upper vertex of the driving silica gel roller.
The invention has the following beneficial technical effects:
firstly, the invention utilizes the viscous materials to rotate at two different rotating speedsUnder the extrusion, stretching and extension action of the rotating rollers with opposite rotating directions, a rubber layer surface with a certain thickness is formed on the surface of the rubber roller, and then the material is transferred to the surface of the base material which continuously walks by virtue of the pressing rollers, so that a thin and uniform coating is formed, the uniform spraying of the micron-sized and submicron-sized material and thinner material on the surface of the base material is realized, and compared with the traditional hot melt adhesive coating method, the coating method is 10g/m2An areal density of the glue layer, and the coating apparatus of the present invention forms 0.3 to 3g/m2The uniformly distributed thin adhesive layer with the surface density has the environmental protection organic characteristic on the premise of meeting the moisture-proof requirement and not changing the physical characteristic of the product in the tobacco industry. For energy industries such as batteries and the like, the device can uniformly coat a thinner layer of adhesive on the metal foil, reduces the using amount of the adhesive under the condition of meeting the requirement of adhesive force, effectively reduces the contact resistance between an active substance and the metal foil, and further greatly improves the overall performance of the battery, namely inhibits the polarization of the battery, reduces the heat effect and improves the rate capability.
And secondly, material deviation rectifying devices are arranged in the three working materials of the unreeling station, the reeling station and the intermediate coating station, so that the materials are prevented from deviating, and meanwhile, a full-automatic tension control system is arranged, so that stable tension control is realized. The tension of the base material is ensured to be constant and the deformation of the base material is consistent in the coating process, and the thickness uniformity and the spraying quality of the coating medium layer are ensured. The tension control unit adopts a swing rod and gear angle amplification structure, can measure and amplify the tension change of the base material in production and feed back the tension change to the driving roller, and realizes stable tension control; meanwhile, the required tension can be adjusted by adjusting the pressure of the control cylinder, so that the requirements of different occasions are met. The tension control unit ensures that the tension of the base material is constant and the deformation of the base material is consistent in the coating process, and the thickness uniformity and the spraying quality of the coating medium layer are ensured.
And thirdly, the rotating speed difference between the driving silica gel roller and the driving steel roller and the gap between the driving silica gel roller and the driving steel roller are adjustable, so that the requirements of different colloid materials and coating thicknesses are met. Meanwhile, the supporting roller, the driving silica gel roller and the driving steel roller are all of hollow shaft structures, a heating unit is arranged in the hollow shaft, the heating unit can adopt an electric heating rod and can also adopt flowing medium heat conduction oil, PID automatic temperature control is adopted, meanwhile, a heating device is also arranged at the bottom of the colloid pool, the temperature of the driving roller is set according to the characteristic parameters and the process of materials in the coating process, the deformation caused by temperature difference is reduced, the quality of products is ensured, and meanwhile, the temperature, the density and the viscosity of viscous materials are kept consistent, so that the coated films are uniform and consistent.
Drawings
FIG. 1 is a schematic diagram of the principle of the apparatus for coating a liquid viscous material according to the present invention;
FIG. 2 is a schematic diagram of the tension control unit of the present invention;
FIG. 3 is a schematic diagram of the engagement of the large and small gears in the tension control unit of the present invention;
FIG. 4 is a schematic view of the moment balance principle in the tension control unit of the present invention;
FIG. 5 is a schematic view of a coating and printing unit according to the present invention;
FIG. 6 is a schematic diagram of a coating and printing unit in the coating process of the present invention;
FIG. 7 is a schematic view of a coating and printing unit according to the present invention;
in the figure: 1, an unwinding unit; 2-tension control unit; 3-a coating and printing unit; 4-subsequent unit; 5-a substrate; 6, rolling; 11-unwinding wheel; 12-a tension sensor; 13-a deviation correcting device; 31-a colloid pool; 32-driving steel roller; 33-thin film glue film; 34-active silica gel roller; 35-a press roll; 41-a winding wheel; 304-a rack; 306-shaft end; 308-shaft end support; 315-pulley; 316-drive belt; 350-supporting rollers; 351-strip-shaped pressing plates; 352-hinge axis; 353, a compression roller cylinder; 354-rubber roller cylinder; 355-a stopper; 356-frame plate; 357 — adjusting screws; 359-sliders; 701-driving roll; 702 — a drive motor; 703-pinion gear; 704-bull gear; 705-cylinder; 706-a piston rod; 707-swing rod; 708-swing rollers; 709-a potentiometer; 710 — control hub; 711-gas storage tank; 712-potentiometer shaft; 715-upper rotating rollers; 716 — lower roll.
Detailed Description
As shown in fig. 1, the apparatus for coating a liquid viscous material according to the present invention includes a control unit, and an unwinding unit 1, a tension control unit 2, a coating and printing unit 3, and a subsequent unit 4, which are sequentially disposed along a moving direction of a substrate 5.
Unwinding unit
Unreel unit 1 and include unreel wheel 11, tension control sensor 12, deviation correcting device 13 and a plurality of commentaries on classics roller 6, power device drives unreel wheel 11 under the magnetic powder brake effect for substrate 5 expandes, is provided with tension sensor 12 on substrate 5, and tension controller 12 forms closed loop control with the magnetic powder brake who unreels unit 1, ensures that the tension of substrate 5 keeps invariable, and can think the settlement. Still set up deviation correcting device 13 in the unit 1 position department that unreels of substrate 5, adopt the infrared ray to detect the head and detect, realize that substrate 5 moves the middle process and rectify a deviation for the position keeps unanimous.
Tension control unit
The tension control unit 2 is used for keeping the tension of the base material constant and the transverse position stable in the whole coating process, and the thickness of the printing material on the surface of the base material foil can be kept uniform and consistent only if the base material is not deformed during coating under the constant tension.
As shown in fig. 2 to 4, the tension control unit 2 of the present invention includes a driving roller 701, a large gear 704, a swing link 707, a swing roller 708, a cylinder 705, a potentiometer 709, and a control hub 710. In normal operation, the substrate 5 sequentially advances along the direction indicated by the driving roller 701, the upper rotating roller 715, the swing roller 708 and the lower rotating roller 716, and the driving roller 701 is driven by the motor 702, or the driving roller 701 is driven by the motor through the synchronous belt. The core component is a swing rod 707 along the vertical direction, and a swing roller 708 is fixed at the lower end of the swing rod 707. The upper end of the swing rod 707 is fixed with the bull gear 704 and can swing along the axis of the bull gear 704; the air cylinder 705 is fixed on the support, a piston rod 706 of the air cylinder 705 is fixed in the middle of the swing rod 707 through a movable hinge, and the piston rod 706 extends and retracts along with the swing of the swing rod 707.
A potentiometer 709 is arranged at a corresponding position of the large gear 704, a small gear 703 is arranged at a shaft head of a potentiometer rotating shaft 712, the large gear 704 and the small gear 703 are matched in parameters and meshed with each other, when the swing rod 707 swings, the large gear 704 is driven to rotate by a small angle, and meanwhile, the small gear 703 is driven to rotate by a large angle, so that the resistance of the potentiometer 709 is changed.
The small gear 703, the large gear 704 and the swing link 707 play a role of angle amplification and measurement, and a slight change angle of the swing link 707 is reflected on the resistance change of the potentiometer 709 through the amplification effect of the large gear and the small gear.
As shown in fig. 4, in actual operation, the tension of the base material is applied to the swing roller 708 to form pulling forces F2 and F3 to the swing roller, and the air cylinder generates a pulling force F1 to the swing rod 707 in negative pressure operation, wherein the directions of F1, F2 and F3 are opposite. In a balanced state, when the swing link 707 is vertically downward, F1 and F2+ F3 keep moment balance, then the resistance parameter of the potentiometer 709 is recorded as R, once the tension of the base material 5 is suddenly increased, that is, F2+ F3 is increased, the moment balance on the swing link 707 is broken, the swing link 707 rotates counterclockwise around the rotating shaft, deviates from the vertical position, and after the angle of the big gear and the small gear is amplified, the resistance R of the potentiometer 709 changes, if the resistance R is increased, the control hub 710 adjusts the input electrical parameter of the motor 702 according to the increased magnitude of the resistance R, so that the output rotating speed of the motor 702 is increased, the rotating speed of the active roller 701 is also increased, at the moment of increase, more base materials 5 are released onto the swing roller 708, the swing roller 708 can overcome the effects of F2 and F3 to restore to the balanced position under the pulling force of F1, and the resistance of the potentiometer 709 recovers to R, the control hub 710 can drive the output rotating speed of the motor 702 to recover, thereby keeping the tension of the substrate constant. Vice versa, that is to say that the change of tension all is through the pendulum rod and the angle amplification effect of size, feeds back to the change of potentiometre resistance, further compensates through the rotational speed of adjusting driving motor for the tension of substrate keeps invariable all the time.
It should be noted that the air cylinder 705 of the present invention is communicated with the air tank 711, and the output pressure F1 of the air tank 711 can change the pressure by changing the parameters of the pressure regulating valve through the control center 710, so as to meet the requirements of different substrate tensions. In addition, since the rotation angle of the large gear 704 is limited, a half gear structure can also be adopted; cylinder 705 is a low friction cylinder with negligible resistance to piston movement. The whole coating device is provided with a plurality of groups of tension control mechanisms which are respectively used for tension control of a plurality of links before coating, before rolling and the like.
Third, coating and printing unit
The existing rubber roller coating printing unit adopts a coating roller to be soaked in a liquid material, a conductive medium material is adhered to a roller body during operation, and after redundant materials are hung by a scraper, the materials are uniformly coated on a base material by an embossing rubber roller.
The invention will be described in detail below with reference to the example of spraying hot melt adhesive onto polyethylene film used in the tobacco industry.
As shown in fig. 5 to 7, the coating and printing unit 3 includes a press roll 35, a driving silica gel roll 34 and a driving steel roll 32 which are stacked from top to bottom, and the driving silica gel roll 34 and the driving steel roll 32 rotate in opposite directions and maintain a certain gap, which is in the micron order. The driving steel roller 32 is immersed in the colloid pool 31, the substrate 5 is arranged between the press roller 35 and the driving silica gel roller 34, and is supported on the support roller 350 to advance under the power traction, and the advancing direction of the support roller is consistent with the centrifugal force direction of the upper peak of the driving silica gel roller 34. The interior of the colloid pool 31 is prepared with materials in advance, and the clean flowing time is 15-25 seconds when the viscosity coefficient of the materials is measured by a No. 3 Engler cup.
The press roller 35 is driven by a lifting unit to lift, the lifting unit is preferably a press roller cylinder 353, the press roller cylinder 353 pushes an upper slide block 359 arranged on the machine frame 304, and the slide block 359 is fixedly connected with the shaft end support 308 so as to drive the press roller 3 to move up and down. The shaft end supports 308 realize the rotation support of the press roll 3, and simultaneously, the shaft end supports 308 are arranged at the two ends of the press roll 3 along with the up-and-down movement of the sliding blocks 359, and two press roll air cylinders 353 which can synchronously lift are configured, so that the lifting of the whole press roll 3 is realized.
As shown in fig. 5, the press roller 3 is separated from the base material 5 and does not rotate before the coating operation. As shown in fig. 6, when coating starts, the pressing roller 35 presses the substrate 5 to the upper surface of the active silica gel roller 34 by the pressing roller cylinder 353, and at this time, the substrate 5 moves forward to drive the pressing roller 35 to rotate. The driving silica gel roller 34 and the driving steel roller 32 are driven by respective driving mechanisms, and the driving mechanisms preferably adopt a belt wheel 315 and a driving belt 316, wherein the driving belt adopts a synchronous belt driving system without noise and with better synchronous performance, and can also adopt other modes such as gear driving and the like.
In the coating process, the hot melt adhesive in the adhesive pool 31 is driven to the surface of the active silica gel roller 34 by the active steel roller 32, a thin adhesive film 33 is formed under the extrusion, stretching and extension actions of the two rollers, and the thin adhesive film is transferred to the continuously fed base material 5 through the press roller 35, so that the coating of the base material is realized. There is a gap between the drive silica gel roller 34 and the drive steel roller 32, and there is a speed difference between the two rollers, wherein the drive silica gel roller 34 rotates faster than the drive steel roller 32, and the rotation speed ratio is related to the colloid viscosity coefficient and the coating thickness.
As can be seen from fig. 6, the liquid viscous material in the colloid pool 31 is driven to the right side of the roller body by the driving steel roller 32, and is extruded, stretched and extended through the gap between the driving silica gel roller 34 and the driving steel roller 32, and the driving silica gel roller 34 has a higher rotation speed than the driving steel roller 35, so that the colloid is rolled and expanded by the rotation speed difference, the colloid passing through the gap forms a colloid film 33 adhered to the left side of the driving silica gel roller 34, the colloid film 33 rotates to the position of the substrate 5 along with the driving silica gel roller 34, and is transferred to the lower surface of the substrate 5 under the action of the pressing roller 35, so as to form a thin material film. In order to make the transfer printing uniform and ensure the consistency of material film coating, the advancing speed of the substrate 5 is required to be consistent with the linear speed of the upper vertex of the active silica gel roller 34, and only if the linear speeds of the substrate 5 and the active silica gel roller 34 are kept consistent, the material can not be accumulated and lacked on the substrate 5, and the consistency before and after the transfer printing is ensured, and the press roller 35 rotates under the drive of the substrate 5.
In order to adapt to parameters such as viscosity and fluidity of different colloids and spraying thickness, the speed difference between the driving silica gel roller 34 and the driving steel roller 32 is adjusted by adjusting the rotating speed of the belt wheel, and the gap between the driving silica gel roller 34 and the driving steel roller 32 is also adjustable, and the adjustment principle is shown in fig. 5-7. A strip-shaped pressure plate 351 is arranged at the shaft end of the driving silica gel roller 34, and the fixed end of the strip-shaped pressure plate 351 (namely, the left part of the strip-shaped pressure plate in fig. 5 and 6) is movably connected to the frame 304 through a hinge shaft 352, can rotate around the hinge shaft 352 and cannot move; the movable end of the strip-shaped pressing plate 351 (namely, the right part of the strip-shaped pressing plate in fig. 5 and 6) is fixedly connected with the piston rod of the rubber roll cylinder 354 through a hinge, and the movable end can be finely adjusted up and down under the action of the rubber roll cylinder 354; and the shaft end support 308 of the driving silica gel roller 34 is fixedly connected to the middle part of the strip-shaped pressing plate 351, preferably, a through hole is formed in the middle part of the strip-shaped pressing plate 351, and the shaft end support 308 is supported and limited on the through hole. Under the action of the rubber roller cylinder 354, the movable end of the strip-shaped pressing plate 351 moves up and down, so that the driving silica gel roller 34 is driven to move up and down slightly. In order to prevent the adjustment displacement from being too large, the lower part of the movable end of the strip-shaped pressing plate 351 is provided with the limiting block 355, so that the movable end stops moving after touching the limiting block 355 in the displacement adjustment process, the active silica gel roller 34 is protected, and the minimum coating thickness is ensured. The stopper 355 is fixed to the frame plate 356 by means of screws, and fine adjustment of a minute displacement of the stopper 355 is achieved by fine adjustment threads. The upper and lower positions of the driving steel roller 32 can not be adjusted, and the driving steel roller is fixed on the frame 304 by shaft end supports 308 at two ends. The driving steel roller 32 and the press roller 35 are both steel smooth rollers with chrome-plated surfaces, and the driving silica gel roller 34 is a soft roller made of silica gel material, and the surface of the soft roller has certain elasticity.
In addition, in order to keep the uniformity of glue layer coating, the press roller 35, the driving silica gel roller 34 and the driving steel roller 32 are all of hollow shaft structures, a heating unit is arranged in the hollow shaft, the heating unit can be a heating rod fixed on the rack 304, the roller keeps still when rotating, and the heating rod realizes the constancy of temperature through a temperature control device of the control unit; in addition, the bottom of the colloid pool 31 is also provided with a heating device. The aim is to ensure that the temperature and the deformation of the base material are consistent in the coating process, and simultaneously the temperature, the density and the viscosity of the colloid are kept consistent front and back, so that the coated medium film is relatively uniform.
Except adopting the electrical heating rod, also can adopt the oil heating roller that the papermaking industry commonly adopted, that is to say press roller 35, initiative silica gel roller 34 and initiative steel roll 32's the inside oil duct that is provided with of roll body, the oil duct of roll body inside is injected into with the oil that heats through rotary joint to adopt PID automatic temperature control to realize the constant temperature on roll body surface, make the medium film after the coating just can be more even.
Under the normal condition, for spraying the hot melt adhesive moisture-proof membrane on the polyethylene substrate, because the flow property of the hot melt adhesive is better between 170 ℃ and 180 ℃, the colloid pool 31, the supporting roller 35, the active silica gel roller 34 and the active steel roller 32 all work at 175 ℃ to 178 ℃ at constant temperature, the test result shows that the linear speed ratio of the active silica gel roller 34 to the active steel roller 32 is 1.1 to 1.5 optimal, and the optimal coating effect can be achieved by 1.3 times preferably, the uniform glue layer coating with micron-level and submicron-level thickness is realized on the polyethylene film, and the polyethylene film moisture-proof membrane can also be used for the uniform glue layer coating with thinner thickness by adjusting the gap and the rotating speed difference.
After coating, the coating enters the subsequent unit 4 of the next link according to the process requirements of different industries, such as film coating, active material printing and the like, which are not described again here.
Claims (7)
1. A continuous coating unit of viscous material, its characterized in that: the device comprises a control unit, and an unreeling unit (1), a coating and printing unit (3) and a subsequent unit (4) which are sequentially arranged along the movement direction of a base material (5), wherein the base material (5) is an aluminum foil, a copper foil or a plastic film;
the coating and printing unit (3) comprises a press roller (35), a driving silica gel roller (34) and a driving steel roller (32) which are stacked from top to bottom, the driving steel roller (32) is a steel smooth roller, and the driving silica gel roller (34) and the driving steel roller (32) rotate in opposite directions and keep a micron-sized gap; the driving steel roller (32) is immersed in a colloid pool (31) containing viscous materials, the base material (5) is arranged between the pressing roller (35) and the driving silica gel roller (34), the base material (5) is supported on the supporting roller (350) and moves along the centrifugal force direction of the upper top point of the driving silica gel roller (34) under the traction of power, and the pressing roller (35) presses the base material (5) on the upper surface of the driving silica gel roller (34) under the driving of the lifting unit; the driving steel roller (32) adheres the viscous materials to the surface of the roller body, a colloid film (33) adhered to the surface of the driving silica gel roller (34) is formed after extrusion and extension of a gap between the driving silica gel roller (34) and the driving steel roller (32), and then the colloid film is transferred to the surface of the base material (5) through the pressing roller (35), so that uniform material film coating with micron-level or submicron-level thickness is realized; the linear speed ratio of the rotating speed of the driving silica gel roller (34) to the rotating speed of the driving steel roller (35) is 1.1-1.5 times; the moving speed of the base material (5) is consistent with the linear speed of the upper vertex of the driving silica gel roller (34); the pressing roller (35), the driving silica gel roller (34) and the driving steel roller (32) are all of a hollow shaft structure, a heating unit is installed inside the hollow shaft, and the heating unit is a heating rod or flowing heat conduction oil.
2. The continuous viscous material coating apparatus according to claim 1, wherein: the coating device also comprises a tension control unit (2) arranged in the coating link; the tension control unit (2) comprises a driving roller (701), a swing roller (708), a large gear (704), a small gear (703), a potentiometer (709), a swing rod (707), an air cylinder (705) and a control center (710); the swing rod (707) is arranged along the vertical direction, the swing roller (708) is arranged at the lower end of the swing rod (707), and the upper end of the swing rod (707) is fixedly connected with the large gear (704) and swings along the axis of the large gear (704); a piston rod (706) of the air cylinder (705) is fixed in the middle of the swing rod (707) through a movable hinge and stretches along with the swing piston rod (706) of the swing rod (707); the pinion (703) is arranged on the shaft head of the potentiometer rotating shaft (712) and is meshed with the bull gear (704); the base material (5) is arranged on the driving roller (701) and the swing roller (708), the driving roller (701) is provided with a power driving device, and the control center (710) is electrically connected with the power driving device and the potentiometer (709).
3. The continuous viscous material coating apparatus according to claim 2, wherein: the cylinder (705) is communicated with the air storage tank (711), the control center (710) is electrically connected with a pressure regulating valve of the air storage tank (711), and the control center (710) changes parameters of the pressure regulating valve to realize the regulation of the output pressure of the air storage tank (711).
4. The continuous viscous material coating apparatus according to claim 2, wherein: the tension control device further comprises an upper roller (715) and a lower roller (716), and the substrate (5) is advanced sequentially in the direction of the drive roller (701), the upper roller (715), the swing roller (708), and the lower roller (716).
5. The continuous viscous material coating apparatus according to claim 1, wherein: the gap between the driving silica gel roller (34) and the driving steel roller (32) is adjusted through an adjusting mechanism.
6. The continuous viscous material coating apparatus according to claim 5, wherein: the adjusting mechanism comprises a strip-shaped pressing plate (351) arranged at the shaft end of the driving silica gel roller (34), the fixed end of the strip-shaped pressing plate (351) is movably connected to the rack (304) through a hinge shaft (352), the movable end of the strip-shaped pressing plate (351) is fixedly connected with the piston rod of the rubber roller cylinder (354) through a hinge, and the movable end is finely adjusted up and down under the action of the rubber roller cylinder (354); the shaft end support (308) of the driving silica gel roller (34) is fixedly connected with the middle part of the strip-shaped pressing plate (351).
7. The continuous viscous material coating apparatus according to claim 6, wherein: the lower part of bar clamp plate (351) expansion end has set up stopper (355), and stopper (355) rely on the fix with screw on frame plate (356) to realize the regulation of stopper (355) displacement through fine tooth screw thread.
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| CN201710841311.4A CN107638987B (en) | 2017-09-18 | 2017-09-18 | Continuous coating unit of viscidity material |
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| CN201710841311.4A CN107638987B (en) | 2017-09-18 | 2017-09-18 | Continuous coating unit of viscidity material |
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| CN107638987B true CN107638987B (en) | 2020-06-19 |
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| CN108819063B (en) * | 2018-06-08 | 2024-06-04 | 温岭市聚智高分子材料有限公司 | Casting valve and coating device with same |
| JP2022548368A (en) * | 2019-09-16 | 2022-11-18 | ノードソン コーポレーション | Systems and methods for tuning closed-loop controllers of hot melt liquid dispensing systems |
| CN111058297B (en) * | 2019-12-31 | 2022-07-19 | 无锡诺尔特机械有限公司 | PUR hot melt adhesive full-coating equipment and full-coating process thereof |
| US20230198034A1 (en) * | 2021-12-20 | 2023-06-22 | GM Global Technology Operations LLC | Capacitance-based quality monitoring and control in battery manufacturing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202944926U (en) * | 2012-11-28 | 2013-05-22 | 泉州市丰泽区东方机械有限公司 | Swing roller tension control mechanism used for tape casting machine |
| CN203018268U (en) * | 2012-12-25 | 2013-06-26 | 佛山市派特尔机械制造有限公司 | Novel wood plate roller painting device |
| CN203264962U (en) * | 2013-05-28 | 2013-11-06 | 无锡市华泰医药包装有限公司 | Small roller kiss coating device |
| CN104036401B (en) * | 2014-07-01 | 2016-11-23 | 王建程 | A kind of integrated forgery-preventing anti-channeling mark adheres to the device of random anti-counterfeit fiber |
| CN204544609U (en) * | 2015-02-04 | 2015-08-12 | 江门市辉隆塑料机械有限公司 | A kind of coating material of avoiding stretches and wrinkling coating machine |
| CN205240886U (en) * | 2015-12-23 | 2016-05-18 | 汕头市远东轻化装备有限公司 | Permanent tension automatic control device |
| CN205851274U (en) * | 2016-07-20 | 2017-01-04 | 浙江康骏机械有限公司 | Smooth roll coating lazy-tongs |
| CN205966362U (en) * | 2016-08-26 | 2017-02-22 | 苏州爱可姆机械有限公司 | Nick transfer coating head |
| CN206486089U (en) * | 2017-01-30 | 2017-09-12 | 温州市春园彩印厂（普通合伙） | A kind of coating complex machine |
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