TWI693974B - Coating equipment and coating method thereof, and method for manufacturing a coating material - Google Patents

Abstract

A coating equipment includes a roll to roll transporting device, a feeding device, a mixing device, and a coating device. The roll to roll transporting device is used to transporting a substrate. The feeding device includes two first feeders and a second feeder. The first feeder is used to feeding a first liquid agent. The second feeder is used to feeding a second liquid agent. The mixing device is used for mixing the first liquid agent supplied from at least one of two first feeders and the second liquid agent supplied from the second feeder to form a mixed fluid. The coating device receives the mixed fluid and coats the mixed fluid to the substrate.

Description

Coating equipment and coating method, and coating material preparation method

The invention relates to a coating device and a coating method, and a coating material preparation method, in particular to a coating device and a coating method for coating a mixed fluid on a substrate, and a coating material preparation method .

Existing high-viscosity mixed fluids such as liquid silicone rubber preliminarily mix the two liquid agents A and B through the mixer before feeding and conveying. Because the two liquid agents A and B are pre-mixed, they will cause liquidity. The viscosity of silicone rubber gradually increases during the transportation in the pipeline. Therefore, it is easy to cause the liquid silicone rubber to have poor fluidity and unable to output the material stably. Therefore, when the liquid silicone rubber is to be formed into a thin film, it often encounters the problem of lack of material or uneven film thickness during the forming process. In addition, the existing mixer cannot mix the two liquid agents A and B with a disparate mixing ratio due to structural limitations, and the existing molding method cannot form a large-area liquid silicone rubber film, so it cannot meet the aforementioned use requirements. .

Therefore, an object of the present invention is to provide a coating device capable of mixing two liquid agents with a disparate mixing ratio into a mixed fluid for coating.

Another object of the present invention is to provide a coating device that can quickly coat a large area of mixed fluid, and can obtain good coating uniformity in the width direction and thickness direction, which can greatly save processing Work hours and reduce manufacturing costs.

Therefore, the coating equipment of the present invention includes a roll-to-roll conveying device, a feeding device, a mixing device, and a coating device.

The roll-to-roll conveying device is used to convey a substrate movement. The feeding device includes two first feeders and a second feeder, each of the first feeders is used to supply a first liquid agent, and the second feeder is used to supply a second liquid agent. The mixing device is used for mixing the first liquid agent supplied by at least one of the two first feeders and the second liquid agent supplied by the second feeder to form a mixed fluid. The coating device is used to receive the mixed fluid and apply it to the substrate.

Another object of the present invention is to provide a coating method for a coating device, which can mix two liquid agents with different mixing ratios into a mixed fluid for coating.

Another object of the present invention is to provide a coating method for coating equipment, which can quickly coat a large area of mixed fluid, and can obtain good coating uniformity in both the width direction and the thickness direction. Can significantly save processing time and reduce manufacturing costs.

Therefore, the coating method of the coating device of the present invention includes the following steps:

Transport a substrate through a roll-to-roll conveyor;

The stored first liquid agent is supplied to a mixer through at least one of the two first feeders, and the stored second liquid agent is supplied to a syringe through a second feeder, so that the syringe can Injecting the second liquid agent into the mixer;

Mixing the first liquid agent and the second liquid agent through the mixer to form a mixed fluid; and

The mixed fluid is applied to the substrate through a coating device.

Therefore, the coating method of the present invention includes the following steps:

Provide at least two feeders;

Supplying a first liquid agent and a second liquid agent through the at least two feeders;

Mixing the first liquid agent and the second liquid agent to form a mixed fluid, wherein the mixing ratio of the second liquid agent and the first liquid agent is any ratio between the range of 1:5 to 1:1000 A ratio, and the mixed fluid is one of an ultraviolet curing liquid silicone rubber, a liquid silicone rubber, and a two-liquid epoxy resin; and

The mixed fluid is applied to a substrate.

Another object of the present invention is to provide a method for preparing a coating material, which can mix two liquid agents with a disparate mixing ratio into a mixed fluid to be used as a coating material.

Therefore, the method for preparing a coating material of the present invention includes the following steps:

Provide two first feeders and one second feeder;

Supplying a first liquid agent through at least one of the two first feeders;

Supplying a second liquid agent through the second feeder; and

The first liquid agent and the second liquid agent are mixed to form a mixed fluid, and the mixing ratio of the second liquid agent and the first liquid agent is any one between 1:5 to 1:1000 ratio proportion.

The effect of the present invention is that the first liquid agent supplied by at least one of the two first feeders and the second liquid agent supplied by the second feeder are mixed by a mixing device to form a mixed fluid for coating The material can meet the use requirements of two liquid agents with a disparate mixing ratio. In addition, the roll-to-roll conveying device is used to convey the substrate, which can convey a large area of substrate. At the same time, with the coating device, it can quickly apply a large area of mixed fluid to a large area of substrate, and in the width direction and Good coating uniformity can be obtained in the thickness direction, which can greatly save processing time and reduce manufacturing costs.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.

Referring to FIG. 1, which is the first embodiment of the coating equipment of the present invention, the coating equipment 200 includes a roll to roll conveying device 2, a feeding device 3, a mixing device 4, and a coating device 5 、A curing device 6, and a protective film attaching device 7.

The roll-to-roll conveying device 2 includes an unwinding roller 21 and a receiving roller 22 at opposite ends, and a plurality of carrying rollers 23 spaced apart from each other between the unwinding roller 21 and the receiving roller 22. The discharge roller 21 is wound with a base material 10 and can discharge the base material 10 in a rotating manner. The receiving roller 22 is connected to the end of the base material 10 opposite to the discharging roller 21 and can wind up the base material 10 by rotation. The carrying rollers 23 carry the substrate 10 between the unwinding roller 21 and the receiving roller 22. By the action of rotating the unwinding of the unwinding roller 21 and the unwinding of the unwinding roller 22, the substrate 10 can be moved in a moving direction D.

Referring to FIG. 2, the feeding device 3 includes two first feeders 31 and a second feeder 32. Each first feeder 31 includes a first storage barrel 311, a first piston pump 312, and a first supply pipe 313. The first storage barrel 311 is used to store a first liquid agent 11. The first piston pump 312 is inserted into the first storage barrel 311 and connected to the first supply pipe 313. The first piston pump 312 can be driven by air pressure to move in the first storage barrel 311 to transfer the first liquid agent 11 Squeeze into the first feed pipe 313 to discharge. The second feeder 32 includes a second storage barrel 321, a second piston pump 322, and a second feed pipe 323. The second storage barrel 321 is used to store a second liquid agent 12. The second piston pump 322 penetrates the second storage barrel 321 and is connected to the second supply pipe 323. The second piston pump 322 can be driven by the air pressure to move in the second storage barrel 321 to transfer the second liquid agent 12 Squeeze into the second feed pipe 323 to discharge.

Referring to FIGS. 2, 3 and 4, the mixing device 4 includes a manifold 41, a mixer 42, a syringe 43, a filter 44, a regulator 45, a control unit 46, and a delivery tube 47. The manifold 41 is T-shaped and has an inlet tube 411, and an outlet tube 412 vertically connected to the middle of the inlet tube 411. The two opposite ends of the inlet pipe 411 are respectively connected to the two first supply pipes 313 for guiding the first liquid agent 11 supplied by the two first supply pipes 313 into the outlet pipe 412, The two first liquid agents 11 merge together in the outlet pipe body 412. The mixer 42 is a static mixer and has a housing 421 connected to the outlet pipe body 412 of the manifold 41 and a mixing rod 422 in the shape of a screw. The casing 421 defines a main flow channel 423 communicating with the outlet pipe body 412 and a side flow channel 424 connected to one side of the main flow passage 423 and adjacent to the outlet pipe body 412. The mixing rod 422 is fixedly disposed in the main flow path 423 of the housing 421 and located downstream of the side flow path 424. The main channel 423 is used to guide the first liquid agent 11 output through the outlet pipe 412 to flow to the mixing rod 422.

The syringe 43 is a pneumatic syringe that can be driven by gas. The syringe 43 has a housing 431, a piston 432, a diaphragm 433, and a valve needle 434. The casing 431 can be locked to the casing 421 of the mixer 42 by, for example, a screw lock. The casing 431 is located upstream of the mixing rod 422 and adjacent to the outlet pipe 412. The housing 431 defines a storage chamber 435, a shot hole 436, and an air chamber 437. The injection hole 436 communicates between the storage chamber 435 and the side flow channel 424. The second supply pipe 323 is connected to the housing 431 and communicates with the storage chamber 435 for supplying the second liquid agent 12 into the storage chamber 435. The piston 432 is movably installed in the gas chamber 437. The diaphragm 433 is a ring-shaped piece made of an elastic material such as silicon rubber or rubber. The outer periphery of the diaphragm 433 is fixedly connected to the housing 431. The valve needle 434 is inserted into the storage chamber 435. One end of the valve needle 434 is used to control the blocking and circulation of the injection hole 436, while the other end is inserted through the center of the diaphragm 433 and locked to the piston 432 by a screw lock. . The valve needle 434 and the piston 432 jointly clamp the inner periphery of the diaphragm 433 near the center. The diaphragm 433 is used to prevent the second liquid agent 12 in the storage chamber 435 from flowing into the gas chamber 437. The piston 432 can be driven by the air pressure in the gas chamber 437 to drive the valve needle 434 to a blocking position blocking the injection hole 436 (as shown in FIG. 4), and an opening position not blocking the injection hole 436 (as shown in FIG. 4) 7), so that the valve needle 434 can inject the second liquid agent 12 in the storage chamber 435 into the main flow path 423 through the injection hole 436 and the side flow path 424. In this way, the second liquid agent 12 and the first liquid agent 11 can flow along the main channel 423 to the mixing rod 422, and the two are mixed by the mixing rod 422 to form a mixed fluid 13 (as shown in FIG. 8) .

The filter 44 is disposed at an end of the housing 421 opposite to the manifold 41 and downstream of the mixing rod 422. The filter 44 is used to filter the mixed fluid 13 output through the mixer 42. The pressure stabilizing valve 45 is disposed at one end of the filter 44 opposite to the mixer 42 and connected to one end of the delivery pipe 47. The pressure stabilizing valve 45 can adjust the pressure of the mixed fluid 13 output through the delivery pipe 47 according to requirements. The other end of the delivery tube 47 is connected to the coating device 5 (as shown in FIG. 5).

2 and 4, the control unit 46 has a controller 460, a directional control valve 461, two first intake pipes 462, two first exhaust pipes 463, a second intake pipe 464, a first Two exhaust pipes 465, a third intake pipe 466, a fourth intake pipe 467, two first flow meters 468, and a second flow meter 469. The controller 460 is a programmable controller (PLC). The directional control valve 461 is an electromagnetic directional control valve electrically connected to the controller 460 and actuated by the controller 460. Each first intake pipe 462 is connected between the directional control valve 461 and the corresponding first piston pump 312 of the first feeder 31. The directional control valve 461 is used to control the intake of the first intake pipe 462 to drive the first The piston pump 312 squeezes the first liquid agent 11 to be delivered to the inlet pipe body 411 of the header pipe 41 via the first supply pipe 313. Each first exhaust pipe 463 is connected between the directional control valve 461 and the corresponding first piston pump 312 of the first feeder 31. The directional control valve 461 is used to control the exhaust of the first exhaust pipe 463 to drive the first The piston pump 312 is reset to the initial position. The second intake pipe 464 is connected between the directional control valve 461 and the second piston pump 322 of the second feeder 32. The directional control valve 461 is used to control the intake of the second intake pipe 464 to drive the second piston pump 322 The second liquid agent 12 is squeezed to be delivered into the storage chamber 435 of the syringe 43 via the second supply pipe 323. The second exhaust pipe 465 is connected between the directional control valve 461 and the second piston pump 322 of the second feeder 32. The directional control valve 461 is used to control the exhaust of the second exhaust pipe 465 to drive the second piston pump 322 Reset to the initial position.

It is added that in another implementation form of this embodiment, the directional control valve 461 controls the second intake pipe 464 to drive the second piston pump 322 of the second feeder 32 to continuously squeeze in a continuous intake mode The second liquid agent 12 is used to maintain the continuous delivery of the second liquid agent 12 into the storage chamber 435 of the syringe 43 via the second supply tube 323.

The third intake pipe 466 is connected between the directional control valve 461 and the casing 431 of the syringe 43 and communicates with the air chamber 437. The directional control valve 461 is used to control the intake of the third intake pipe 466 into the air chamber 437 to drive The piston 432 drives the valve needle 434 to move toward the injection hole 436, so that the valve needle 434 can be positioned at the blocking position blocking the injection hole 436. The fourth intake pipe 467 is connected between the directional control valve 461 and the casing 431 of the syringe 43 and communicates with the air chamber 437. The directional control valve 461 is used to control the intake of the fourth intake pipe 467 into the air chamber 437 to drive The piston 432 drives the valve needle 434 to move away from the injection hole 436, so that the valve needle 434 can move from the blocking position to the opening position.

Each first flowmeter 468 is disposed on the corresponding first supply pipe 313 and electrically connected to the controller 460. Each first flowmeter 468 is used to calculate the first liquid agent output through the corresponding first supply pipe 313 11 flow rate. The second flow meter 469 is disposed on the second supply pipe 323 and electrically connected to the controller 460. The second flow meter 469 is used to calculate the flow rate of the second liquid agent 12 output through the second supply pipe 323.

Referring to FIGS. 1 and 5, the coating device 5 includes a pump 51, an applicator 52, and a delivery tube 53 connected between the pump 51 and the applicator 52. The pump 51 has an inlet 511 and an outlet 512. The inlet 511 is connected to the delivery pipe 47 of the mixing device 4 to receive the mixed fluid 13 output through the delivery pipe 47. The outlet 512 is connected to the delivery tube 53 to output the mixed fluid 13 to flow to the applicator 52 via the delivery tube 53. The applicator 52 is located on the moving path of the substrate 10 for coating the mixed fluid 13 on a surface 101 of the substrate 10.

Referring to FIG. 1, the curing device 6 is located downstream of the coating device 5 and above the surface 101 of the substrate 10. The curing device 6 is used to cure the mixed fluid 13 coated on the substrate 10 to form a flexible substrate 13 ′ ( (As shown in Figure 10). The protective film attaching device 7 is located downstream of the curing device 6 and above the surface 101 of the substrate 10. The protective film attaching device 7 includes a feed roller 71 above one of the carrying rollers 23, and the feed roller 71 is wound around Protective film 14. The feed roller 71 discharges the protective film 14 by rotation and presses it on the flexible substrate 13', so that the protective film 14 is adhered to the flexible substrate 13'.

The following describes the coating method of the coating device 200:

Referring to FIG. 6, the coating method of the coating apparatus 200 of this embodiment includes the following steps: substrate transport step S1, feeding step S2, mixing step S3, coating step S4, curing step S5, and attaching a protective film Step S6.

Referring to FIGS. 1 and 6, in the step S1 of conveying the substrate, the roll-to-roll conveying device 2 rotates the unwinding of the feeding roller 21 and the receiving roller 22 to rotate and receive the material, so that the roll-to-roll conveying device 2 can The transport substrate 10 moves in the movement direction D. In this embodiment, the base material 10 is a flexible copper foil substrate as an example. Of course, the substrate 10 may also be a flexible polyimide (PI) substrate or a flexible polyethylene terephthalate (PET) substrate.

2, 3, 4 and 6, in the feeding step S2, the stored first liquid agent 11 is supplied to the mixer through at least one of the two first feeders 31 of the feeding device 3 42. The stored second liquid agent 12 is supplied to the syringe 43 through the second feeder 32 so that the syringe 43 can inject the second liquid agent 12 into the mixer 42.

The feeding step S2 of this embodiment is mainly for feeding two liquid agents with a large difference in mixing ratio. For example, the mixing ratio of the second liquid agent 12 and the first liquid agent 11 is between 1:5 and 1:1000. Any ratio between the ranges. Specifically, the first liquid agent 11 in this embodiment is a main agent containing polysiloxane such as vinyl, and the second liquid agent 12 is a catalyst catalyst including, for example, platinum. The ratio of the second liquid agent 12 to the first liquid agent 11 is exemplified by the disparity ratio of 1:100, that is, 100 grams of the first liquid agent 11 and 1 gram of the second liquid agent 12 are mixed.

The control unit 46 controls the feeding process of the feeding device 3. First, the controller 460 first drives the directional control valve 461 to simultaneously control the intake air of the two first intake pipes 462 to respectively drive the two first piston pumps 312 to squeeze the first A liquid agent 11 causes the first liquid agent 11 of each first feeder 31 to be delivered to the merger pipe body 411 of the merger pipe 41 via the corresponding first feed pipe 313. The inlet pipe body 411 guides the first liquid agent 11 supplied by the two first supply pipes 313 into the outlet pipe body 412, so that the two first liquid agents 11 merge together in the outlet pipe body 412 and It is exported into the main channel 423 of the mixer 42 via the outlet pipe 412. Each of the foregoing first piston pumps 312 squeezes the first liquid agent 11 to be delivered into the main flow path 423 via the manifold 41. For example, a feed pressure of, for example, 3000 psi, and the first A liquid agent 11 has the same hardness.

When each first flowmeter 468 calculates that the flow rate of the first liquid agent 11 output through the corresponding first supply pipe 313 reaches a first preset value, for example, 50 grams, each first flowmeter 468 generates a first Signal. After the controller 460 receives the first signals generated by the two first flowmeters 468, the controller 460 drives the directional control valve 461 to control the intake of the second intake pipe 464 to drive the second piston pump 322 to squeeze the second liquid The agent 12 causes the second liquid agent 12 to be transferred into the storage chamber 435 of the syringe 43 via the second supply tube 323.

2, 7 and 8, when the second flow meter 469 calculates that the flow rate of the second liquid agent 12 output through the second supply pipe 323 reaches a second preset value, for example, 1 g, the second flow rate A total of 469 generates a second signal. After the controller 460 receives the second signal generated by the second flow meter 469, the controller 460 drives the directional control valve 461 to control the second air intake pipe 464 to stop the air intake, so that the second feeder 32 suspends the supply of the second Liquid Agent 12. Next, the controller 460 drives the directional control valve 461 to control the fourth intake pipe 467 to enter the air chamber 437 of the syringe 43 to drive the piston 432 to drive the valve needle 434 from the blocking position to a first direction I1 to Open position. At this time, the injection hole 436 communicates with the storage chamber 435. Subsequently, the controller 460 drives the directional control valve 461 to control the fourth intake pipe 467 to stop intake, and controls the third intake pipe 466 to intake air into the air chamber 437 to drive the piston 432 to drive the valve needle 434 from the open position A second direction I2 opposite to the first direction I1 moves. During the movement of the valve needle 434 in the second direction I2, an injection pressure such as 3000 psi or more is applied to inject the second liquid agent 12 into the main flow channel 423 through the injection hole 436 and the side flow channel 424. When the valve needle 434 moves to the blocking position shown in FIG. 8, it can no longer move. At this time, the injection action of the second liquid agent 12 is completed.

Since the two first feeders 31 continuously supply the first liquid agent 11 into the main channel 423 of the mixer 42, in order to ensure that the mixing ratio of the second liquid agent 12 and the first liquid agent 11 is correct, this embodiment The example controller 460 determines the timing of controlling the second feeder 32 to feed into the syringe 43 by the first signal generated by the first flow meter 468, and the second signal generated by the second flow meter 469 To determine the timing of the injection of the second liquid agent 12 into the main channel 423 by the control syringe 43. In this way, the controller 460 can control the syringe 43 to intermittently inject the second liquid agent 12 into the main flow path 423 through the directional control valve 461 according to the aforementioned timing, to ensure that every 1 gram of the second liquid agent 12 can The first liquid agent 11 is mixed.

In addition, since each first feeder 31 supplies the first liquid agent 11 to the feed channel 423 of the mixer 42 with a large feed pressure, and the ratio of the second liquid agent 12 mixed with the first liquid agent 11 is very different, Therefore, the injection of the second liquid agent 12 into the main flow path 423 through the injection pressure of the valve needle 434 of the syringe 43 corresponding to the feed pressure or greater than the feed pressure, in addition to the smooth amount of the second liquid agent 12 Injection into the main channel 423 with high internal pressure can also avoid the problem of insufficient flow rate of the output second liquid agent 12 due to pipeline loss during the delivery of a small amount of the second liquid agent 12 through a common feed pipe. Furthermore, by supplying the first liquid agent 11 into the mixer 42 at the same time by the two first feeders 31, it is possible to shorten the amount of the first liquid agent 11 supplied to the main channel 423 of the mixer 42, for example, 100 g. The time required and the time between injections of the second liquid agent 12 by the syringe 43 are shortened.

Referring to FIG. 2, FIG. 6 and FIG. 8, in the mixing step S3, the first liquid agent 11 and the second liquid agent 12 in the main channel 423 flow through the mixing rod 422, and the first liquid agent 11 and The second liquid agent 12 is mixed to form a mixed fluid 13 as a coating material. The aforementioned mixed fluid 13 is a high-viscosity fluid whose viscosity range is, for example, between 30,000 cps and 3,000,000 cps. The mixed fluid 13 of this embodiment is an example of an ultraviolet curing liquid silicone rubber.

Subsequently, the mixed fluid 13 will flow through the filter 44 and the regulator 45 in sequence. The filter 44 filters the partially cured glue in the mixed fluid 13 to prevent it from flowing into the regulator 45. The pressure regulating valve 45 can adjust the pressure of the mixed fluid 13 delivered into the pump 51 via the delivery pipe 47 according to demand.

It should be noted that, in the feeding step S2, since the syringe 43 is upstream of the mixing rod 422 (that is, before the first liquid agent 11 passes through the mixing rod 422), the second liquid agent 12 is injected into the mainstream 423 and the first A liquid agent 11 converges together. Therefore, the first liquid agent 11 and the second liquid agent 12 flow through the main channel 423 for a short period of time and then flow through the mixing rod 422 to be mixed. Thereby, the time for the two liquid agents to contact each other before flowing into the mixing rod 422 can be shortened to reduce the viscosity increase caused by the cross-linking reaction caused by the contact of the two liquid agents and the problem of unsmooth flow.

5, 6 and 9, in the coating step S4, in order to be able to accurately and stably control the flow rate of the mixed fluid 13 output to the applicator 52, the pump 51 of this embodiment is a screw pump. The pump 51 drives a screw (not shown) through a motor 513 to rotate. When the screw rotates, the mixed fluid 13 output from the delivery pipe 47 is drawn into the pump 51 through the inlet 511 and is pushed to the outlet 512 by the screw and discharged through the outlet 512 To the delivery pipe 53, the mixed fluid 13 flows to the applicator 52 via the delivery pipe 53. By the design of the pump 51, regardless of the flow rate of the mixed fluid 13 output by the regulator 45 and the delivery pipe 47, only when the motor 513 of the pump 51 drives the screw to move the mixed fluid 13 to the applicator 52, the applicator Only 52 can perform the action of applying the mixed fluid 13. By means of the screw of the pump 51 pushing the mixed fluid 13, the flow rate of the mixed fluid 13 delivered to the applicator 52 through the delivery tube 53 can be accurately and stably controlled, so that the applicator 52 can uniformly coat the mixed fluid 13 on the On the surface 101 of the base material 10 moving in the moving direction D. In addition, by controlling the amount of flow from the pump 51 to the applicator 52, the thickness T of the thickness of the mixed fluid 13 applied by the applicator 52 can be adjusted.

On the other hand, in order to make the mixed fluid 13 have a wide width W range during coating and improve the uniformity of coating in the width W direction, in this embodiment, the applicator 52 is a slot (slot type) die) applicator. The applicator 52 is formed with a flow channel 521 that receives the mixed fluid 13 output through the delivery tube 53. The flow channel 521 is used to spread the mixed fluid 13 uniformly so that it can flow out in a sheet-like manner, thereby enabling the coating The width 52 of the cloth 52 when the mixed fluid 13 is applied is large, for example, the width can be 2 meters or more, and the uniformity of the coating in the width W direction can be improved.

It should be noted that, in other embodiments, the form of the pump 51 may also be a reciprocating piston pump according to usage requirements, for example. In addition to slit coating, the coating device 5 can also adopt other wet coating technologies such as gravure coating or blade coating according to usage requirements.

Referring to FIGS. 6 and 10, in the curing step S5, the curing device 6 is an ultraviolet lamp that can emit ultraviolet light, and the curing device 6 reacts to the mixed fluid on the surface 101 of the substrate 10 moving along the moving direction D 13 Irradiate ultraviolet light to cure the mixed fluid 13 to form a flexible substrate 13'. Next, in the step S6 of attaching the protective film, the feed roller 71 unwinds the protective film 14 by rotating and presses it on the flexible substrate 13 ′ to stick the protective film 14 to the flexible substrate 13 ′, thereby, It is possible to prevent the flexible substrate 13' from adhering to dust or foreign objects. Finally, the collecting roller 22 will wind up the stacked base material 10, flexible substrate 13' and protective film 14 to complete the collecting operation.

With the coating device 200 applying the mixed fluid 13 on the substrate 10 by the aforementioned coating method, the large-area mixed fluid 13 with a large width W can be quickly applied in the width W direction and thickness Good coating uniformity can be obtained in the T direction. As a result, the processing time and manufacturing cost can be greatly reduced, and the large-area sheet-like base material composed of the base material 10 and the flexible substrate 13' can be applied to the manufacture of flexible circuit boards, for example.

It should be noted that, in other embodiments, the mixing ratio of the second liquid agent 12 and the first liquid agent 11 can be adjusted in the range of 1:5 to 1:1000 according to the process requirements. The flow rate of the second liquid agent 12 and the first liquid agent 11 input into the mixer 42 is moderately adjusted, whereby the solidification speed and hardness of the mixed fluid 13 can be adjusted. In addition, the mixed fluid 13 may also be other types of high-viscosity fluids such as thermosetting liquid silicone rubber or two-component epoxy resin. Furthermore, the aforementioned large-area sheet-shaped substrate can also be applied to the manufacture of, for example, flexible electronic substrates or other manufacturing occasions requiring a high-viscosity fluid as a flexible substrate.

The overall structure and coating method of the second embodiment of the coating apparatus of the present invention are substantially the same as those of the first embodiment, except for the feeding step S2.

Referring to FIGS. 2 and 6, during the feeding process of the feeding device 3 by the control unit 46, the controller 460 drives the directional control valve 461 to first control one of the first feeders 31 to supply the first liquid agent 11 to the manifold Within 41. When the corresponding first flow meter 468 calculates that the flow rate of the first liquid agent 11 output through the corresponding first supply pipe 313 reaches 100 g, the first flow meter 468 generates a signal. After the controller 460 receives the signal generated by the first flowmeter 468, the controller 460 drives the directional control valve 461 to sequentially control the second feeder 32 to supply the second liquid agent 12 into the syringe 43 and the syringe 43 The second liquid agent 12 is injected into the mixer 42.

When the first liquid agent 11 of the first feeder 31 is completely supplied, the controller 460 will drive the directional control valve 461 to control the other first feeder 31 to continue feeding. On the premise of interrupting the operation of the coating apparatus 200, another first feeder 31 is used to continue feeding, so as to improve the continuity of feeding.

The overall structure and coating method of the third embodiment of the coating apparatus of the present invention are substantially the same as the first embodiment, except for the hardness of the first liquid agent 11 of the two first feeders 31 and the feeding step S2.

Referring to FIGS. 2 and 6, the hardness of the first liquid agent 11 supplied by the two first feeders 31 is different. For example, the hardness of the first liquid agent 11 of one of the first feeders 31 is harder, while the other The hardness of the first liquid agent 11 of the first feeder 31 is relatively soft. In the feeding step S2, by adjusting the flow ratio of the first liquid agent 11 delivered by the two first feeders 31 into the manifold 41, the output can be adjusted according to the process requirements without interrupting the operation of the coating apparatus 200 The hardness of the first liquid agent 11 can thereby improve the convenience of adjusting the hardness of the material.

The overall structure and coating method of the fourth embodiment of the coating apparatus of the present invention are substantially the same as those of the first embodiment, except for the color of the first liquid agent 11 of the two first feeders 31 and the feeding step S2.

2 and 6, the colors of the first liquid agent 11 supplied by the two first feeders 31 are different. In the feeding step S2, by adjusting the flow ratio of the first liquid agent 11 delivered by the two first feeders 31 into the manifold 41, the output can be adjusted according to the process requirements without interrupting the operation of the coating apparatus 200 The color of the first liquid agent 11 can improve the convenience of color adjustment.

In summary, the coating device 200 of each embodiment injects the second liquid agent 12 into the mixer 42 with a high-pressure injection pressure through the syringe 43, so that the second liquid agent 12 and the first liquid agent 11 are mixed into The way of mixing the fluid 13 can meet the use requirements of two liquid agents with a disparate mixing ratio. In addition, the controller 460 determines the timing of controlling the second feeder 32 to supply the syringe 43 with the first signal generated by the first flow meter 468 and the second signal generated by the second flow meter 469 It is determined when the control syringe 43 injects the second liquid agent 12 into the mainstream 423. In this way, the controller 460 can control the syringe 43 to intermittently inject the second liquid agent 12 into the main flow path 423 through the directional control valve 461 according to the aforementioned timing to ensure that the mixing ratio of the second liquid agent 12 and the first liquid agent 11 is correct . In addition, the syringe 43 injects the second liquid agent 12 into the main flow path 423 upstream of the mixing rod 422 and merges with the first liquid agent 11, thereby shortening the contact between the two liquid agents before flowing into the mixing rod 422. In order to reduce the cross-linking reaction caused by the contact of the two liquid agents, which leads to the increase in viscosity and the problem of unsmooth flow. Furthermore, the method of conveying the substrate 10 by the roll-to-roll conveying device 2 can convey a large area of the substrate 10, and at the same time, the pump 51 of the coating device 5 is used to supply a stable flow of the mixed fluid 13 to the applicator 52 to make the coating The cloth spreader 52 can quickly apply the large-area mixed fluid 13 to the large-area base material 10, and can obtain good coating uniformity in the width direction and the thickness direction, which can greatly save processing time and reduce manufacturing Cost, so it can really achieve the purpose of cost invention.

However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still classified as This invention covers the patent.

10‧‧‧ Base material 101‧‧‧surface 11‧‧‧ first liquid agent 12‧‧‧ second liquid agent 13‧‧‧ mixed fluid 13′‧‧‧ flexible substrate 14‧‧‧protective film 200‧‧‧coating equipment 2‧‧ ‧Roll-to-roll conveying device 21‧‧‧Feeding roller 22‧‧‧Receiving roller 23‧‧‧‧Bearing roller 3‧‧‧Feeding device 31‧‧‧‧First feeder 311‧‧‧First storage Barrel 312‧‧‧First piston pump 313‧‧‧First feed pipe 32‧‧‧Second feeder 321‧‧‧Second storage barrel 322‧‧‧Second piston pump 323‧‧‧Second Feeding tube 4‧‧‧Mixing device 41‧‧‧Combiner tube 411‧‧‧Inlet tube body 412‧‧‧Outlet tube body 42‧‧‧Mixer 421‧‧‧Shell 422‧‧‧Mixing rod 423 ‧‧‧Main channel 424‧‧‧Side flow channel 43‧‧‧Injector 431‧‧‧Housing 432‧‧‧Piston 433‧‧‧ Diaphragm 434‧‧‧Valve needle 435‧‧‧Storage chamber 436‧‧‧ Injection hole 437‧‧‧Air chamber 44‧‧‧ Filter 45‧‧‧Regulator valve 46‧‧‧Control unit 460‧‧‧Controller 461‧‧‧Direction control valve 462‧‧‧First intake pipe 463‧‧‧ First exhaust pipe 434‧‧‧ Second intake pipe 465‧‧‧ Second exhaust pipe 466‧‧‧ Third intake pipe 467‧‧‧ Fourth intake pipe 468‧‧‧ One flow meter 469‧‧‧ second flow meter 47‧‧‧ delivery pipe 5‧‧‧ coating device 51‧‧‧ pump 511‧‧‧ inlet 512‧‧‧ outlet 513‧‧‧ motor 52‧‧‧ coating 521‧‧‧Flow channel 53‧‧‧Conveying tube 6‧‧‧Cutting device 7‧‧‧Protective film attaching device 71‧‧‧Feeding roller S1‧‧‧Conveying substrate step S2‧‧‧Feeding step S3‧‧‧Mixing step S4‧‧‧Coating step S5‧‧‧Curing step S6‧‧‧‧Protective film step D‧‧‧Moving direction I1‧‧‧First direction I2‧‧‧Second direction T‧ ‧‧Thickness W‧‧‧Width

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a schematic diagram of the first embodiment of the coating apparatus of the present invention, illustrating a roll-to-roll conveying device, a The arrangement relationship among the feeding device, a mixing device, a coating device, a curing device, and a protective film attaching device; FIG. 2 is a schematic diagram illustrating the feeding device and the mixing of the first embodiment The connection relationship between the devices; FIG. 3 is a top view illustrating the connection relationship between a manifold, a mixer and a syringe of the first embodiment; FIG. 4 is a partial cross-sectional view illustrating the first embodiment The internal structure of the mixer and the syringe; FIG. 5 is a side view illustrating the connection relationship between a pump, an applicator and a delivery pipe of the coating device of the first embodiment; FIG. 6 is the A step flow chart of the coating method of the first embodiment; FIG. 7 is a cross-sectional view illustrating that a valve needle of the syringe of the first embodiment is in an open position; FIG. 8 is a cross-sectional view illustrating the first embodiment The valve needle of the syringe is in a blocking position, and the valve needle injects a second liquid agent into a main channel of the mixer; FIG. 9 is a perspective view illustrating a coating of the first embodiment The device applies a mixed fluid to a surface of a substrate; and FIG. 10 is a schematic diagram illustrating that the curing device of the first embodiment irradiates ultraviolet light to cure the mixed fluid to form a flexible substrate, and the protective film is attached The device attaches a protective film to the flexible substrate, and a take-up roller winds up the substrate, the flexible substrate and the protective film.

10‧‧‧ Base material

101‧‧‧Surface

14‧‧‧Protection film

200‧‧‧Coating equipment

2‧‧‧roll-to-roll conveyor

21‧‧‧Discharging roller

22‧‧‧Receiving roller

23‧‧‧bearing roller

3‧‧‧Feeding device

4‧‧‧Mixing device

5‧‧‧Coating device

51‧‧‧Pump

52‧‧‧Applicator

53‧‧‧ Conveying pipe

6‧‧‧curing device

7‧‧‧Protective film attaching device

71‧‧‧Feeding roller

D‧‧‧Moving direction

Claims (13)

A coating equipment, including: a roll-to-roll conveying device for conveying a substrate movement; a feeding device, including two first feeders, and a second feeder, each of the first feeder The device is used to supply a first liquid agent, and the second feeder is used to supply a second liquid agent. The mixing ratio of the second liquid agent and the first liquid agent is in the range of 1:5 to 1:1000 Any ratio between them; a mixing device for mixing the first liquid agent supplied by at least one of the two first feeders and the second liquid agent supplied by the second feeder to form a Mixing fluid, the mixing device includes a mixer, a syringe, and a control unit, the syringe is used to receive the second liquid agent supplied by the second feeder and inject it into the mixer, the mixing The device is used to receive the first liquid agent supplied by at least one of the two first feeders and the second liquid agent injected by the syringe and mix the two to form the mixed fluid, the control unit has a controller , At least a first flowmeter, and a second flowmeter, the first flowmeter is provided in the corresponding first feeder and is electrically connected to the controller, used to calculate the corresponding through the first feeder The output of the first liquid agent flow rate, the second flowmeter is disposed in the second feeder and electrically connected to the controller, for calculating the second liquid agent flow rate output through the second feeder , The controller determines the timing of controlling the second feeder to supply the second liquid agent into the syringe by a first signal generated by the first flowmeter, and Judging and controlling the timing of injecting the second liquid agent into the mixer by a second signal generated by the second flowmeter; and a coating device for receiving the mixed fluid and coating it On the substrate. The coating device according to claim 1, wherein the mixer has a casing and a mixing rod, the casing defines a main channel for receiving the first liquid agent, and a main channel connected to the main channel The side flow channel for receiving the second liquid agent, the mixing rod is disposed in the main flow channel and is located downstream of the side flow channel, the syringe is disposed between the housing and the second feeder Pneumatic injector, which can be driven by gas to inject the second liquid agent into the side flow channel, so that the second liquid agent and the first liquid agent converge together upstream of the mixing rod. The coating device according to claim 2, wherein the syringe has a housing provided between the housing and the second feeder, a valve needle inserted through the housing, and a valve inserted through the housing A piston in the housing and connected to one end of the valve needle, the housing defines a storage chamber for receiving the second liquid agent, and a shot hole communicating between the storage chamber and the side flow channel The control unit is used to supply gas into the housing to drive the piston to move the valve needle between a blocking position blocking the injection hole and an opening position not blocking the injection hole. The coating device according to claim 3, wherein the control unit is used to control the two first feeders to simultaneously supply the first liquid agent into the mixer. The coating equipment according to claim 4, wherein the two first feeders store At least one of the hardness or color of the stored first liquid agent is different. The coating device according to claim 1, wherein the mixed fluid is a high-viscosity fluid with a viscosity ranging from 30,000 cps to 3,000,000 cps. The coating equipment according to claim 1 or 6, wherein the mixed fluid is one of an ultraviolet curing liquid silicone rubber, a liquid silicone rubber, and a two-component epoxy resin. A coating method for coating equipment, comprising the following steps: conveying a substrate movement through a roll-to-roll conveying device; supplying a stored first liquid agent to a through one of two first feeders A mixer, which supplies a stored second liquid agent to a syringe through a second feeder, so that the syringe can inject the second liquid agent into the mixer, the second liquid agent and the first liquid The mixing ratio of the agent is any ratio between the range of 1:5~1:1000, and the flow rate of the first liquid agent output through the corresponding first feeder is calculated by at least a first flow meter, The flow rate of the second liquid agent output through the second feeder is calculated through a second flow meter, and the second feed is determined and controlled by a controller through a first signal generated by the first flow meter When the second liquid agent is supplied to the syringe, and the second signal generated by the second flowmeter determines the timing of the syringe to inject the second liquid agent into the mixer; through the The mixer mixes the first liquid agent and the second liquid agent to form a mixed fluid; and The mixed fluid is applied to the substrate through a coating device. The coating method of the coating device according to claim 8, further comprising controlling the two first feeders to simultaneously supply the first liquid agent into the mixer through a control unit. The coating method of the coating device according to claim 9, wherein at least one of the hardness or color of the first liquid agent stored in the two first feeders is different. The coating method of the coating device according to claim 8, further comprising controlling one of the two first feeders to first supply the first liquid agent to the mixer through a control unit, and waits for the two first supplies After the first liquid agent in one of the feeders is supplied, the control unit controls the other of the two first feeders to successively supply the first liquid agent to the mixer. A coating method includes the following steps: providing at least two feeders; supplying a first liquid agent and a second liquid agent through the at least two feeders, and injecting the second liquid agent to the same through a syringe In the first liquid agent, the flow rate of the first liquid agent outputted through the corresponding feeder is calculated through at least a first flow meter, and the output agent through the corresponding feeder is calculated through a second flow meter The flow rate of the second liquid agent is determined by a controller through a first signal generated by the first flowmeter to control the corresponding timing of the feeder supplying the second liquid agent into the syringe, and by the A second signal generated by the second flow meter to determine the timing of controlling the syringe to inject the second liquid agent into the first liquid agent; Mixing the first liquid agent and the second liquid agent to form a mixed fluid, wherein the mixing ratio of the second liquid agent and the first liquid agent is any ratio between the range of 1:5 to 1:1000 A ratio, and the mixed fluid is one of an ultraviolet curing liquid silicone rubber, a liquid silicone rubber, and a two-liquid epoxy resin; and the mixed fluid is coated on a substrate. A method for preparing a coating material includes the following steps: providing two first feeders and a second feeder; supplying a first liquid agent through at least one of the two first feeders; and passing the first Two feeders supply a second liquid agent, and inject the second liquid agent into the first liquid agent through a syringe, and calculate the output through the corresponding first feeder through at least a first flow meter The flow rate of the first liquid agent is calculated by a second flow meter through the second feeder, and the flow rate of the second liquid agent is calculated by a controller through a first signal generated by the first flow meter To determine when to control the second feeder to supply the second liquid agent into the syringe, and to determine and control the syringe to inject the second liquid agent into the syringe by a second signal generated by the second flow meter The timing in the first liquid agent; and mixing the first liquid agent and the second liquid agent to form a mixed fluid, and the mixing ratio of the second liquid agent and the first liquid agent is 1:5~1 : Any ratio between the 1000 ratio range.

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