CN214812149U

CN214812149U - Roller coating equipment

Info

Publication number: CN214812149U
Application number: CN202121000284.6U
Authority: CN
Inventors: 林刘恭
Original assignee: K Laser Technology Inc
Current assignee: K Laser Technology Inc; KLASER Tech Inc
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-11-23
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a gyro wheel coating equipment is used for scribbling the surface of a metal gyro wheel with a photoresistance liquid. The roller coating device comprises a coating device, a rotating shaft positioned adjacent to the coating device and a temperature control device. The coating device is used for spraying the photoresist liquid on the outer surface of the metal roller. The temperature control device comprises a conductive member detachably connected to one end of the rotating shaft and a heating member electrically coupled to the conductive member. The conductive member can be used for providing power for the heating member, so that the heating member heats the metal roller and the temperature of the outer surface of the metal roller is between 40 and 60 ℃. Therefore, the uniformity of the photoresist liquid coated on the outer surface of the metal roller is improved, and the quality of a photoresist layer formed after the photoresist liquid is solidified is improved.

Description

Roller coating equipment

Technical Field

The utility model relates to a coating equipment, especially a gyro wheel coating equipment.

Background

The existing optical film is often formed by transferring an optical microstructure on the optical film through a transfer roller by a stamping method, so as to form the required optical film. Therefore, before transferring the optical microstructure, the conventional transfer roller usually needs to dispose the photoresist solution on the surface of a metal roller to form a photoresist layer, and then perform photolithography on the photoresist layer to form the transfer microstructure.

When a conventional transfer roller is used to form a photoresist layer on a metal roller surface, a photoresist solution is usually deposited on the metal roller surface by a dropping coating (dispensing) or spraying coating (spraying coating). However, the above two methods often cause the problem of uneven distribution of the photoresist liquid, which leads to errors in the transfer microstructures formed by the subsequent photolithography process. Therefore, how to overcome the above-mentioned drawbacks by improving the structural design has become one of the important issues to be solved by this industry.

SUMMERY OF THE UTILITY MODEL

An embodiment of the present invention provides a roller coating apparatus, which can effectively improve the defects possibly generated by the roller coating apparatus.

The utility model discloses a one of them embodiment discloses a gyro wheel coating equipment for scribble the surface of a metal gyro wheel with a light resistance liquid, gyro wheel coating equipment includes: a coating device comprising at least one nozzle, and the coating device is used for spraying the photoresist liquid on the outer surface; a rotating shaft positioned adjacent to the coating device and adapted to be removably disposed inside the metal roller; and a temperature control device, comprising: a conductive member detachably connected to one end of the rotating shaft; the heating element is electrically coupled to the conductive element and can be arranged on the inner side of the metal roller; wherein the conductive element can be used for providing power for the heating element, so that the heating element heats the metal roller, and the temperature of the outer surface of the metal roller is between 40 and 60 ℃.

Preferably, the coating apparatus further comprises a moving mechanism connected to at least one of the nozzles, and the moving mechanism is configured to move at least one of the nozzles along a length direction of the metal roller.

Preferably, the coating apparatus further comprises a distance adjusting mechanism electrically connected to at least one of the nozzles, and the distance adjusting mechanism is configured to adjust a distance between the at least one of the nozzles and the outer surface of the metal roller to be in a range of 0.1 mm to 20 mm.

Preferably, at least one of the nozzles is a piezoelectric nozzle.

Preferably, at least one of the nozzles is a continuous nozzle.

Preferably, the roller coating device further comprises two protection strips, wherein one protection strip is sleeved at one end of the metal roller, and the other protection strip is sleeved at the other end of the metal roller.

Preferably, the conductive member is a conductive slip ring.

Preferably, the roller coating apparatus further comprises a heat-insulating member disposed between the heating member and the rotating shaft, and the heat-insulating member is capable of maintaining the temperature inside the metal roller at 1-100 ℃.

Preferably, the roller coating apparatus further includes a rotating device, and the rotating device includes a clamping mechanism and the rotating shaft clamped by the clamping mechanism, and the clamping mechanism is used to rotate the rotating shaft.

Preferably, the rotating device further comprises a speed control mechanism electrically coupled to the rotating shaft, and the speed control mechanism can be used for controlling the rotating shaft to rotate at a speed between 1 rpm and 120 rpm.

The utility model discloses an one of them beneficial effect lies in, the utility model provides a gyro wheel coating equipment can pass through "electrically conductive piece can be used for right the heating member provides electric power, makes the heating member is right the metal gyro wheel heating, and makes the metal gyro wheel the temperature of surface is between the technical scheme of 40 degrees ~ 60 degrees centigrade" of temperature, makes the photoresistance liquid is coated and is scribbled the metal gyro wheel degree of consistency when the surface promotes, and then makes the quality of a photoresistance layer that forms after the solidification of photoresistance liquid promotes.

For a further understanding of the features and technical content of the present invention, reference should be made to the following detailed description and accompanying drawings, which are only intended to illustrate the present invention, and not to limit the scope of the present invention.

Drawings

Fig. 1 is a schematic perspective view of a roller coating apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a temperature control device according to an embodiment of the present invention.

Fig. 3 is an enlarged schematic view of part iii of fig. 2.

Fig. 4 is a schematic operation diagram of a roller coating apparatus according to an embodiment of the present invention.

Detailed Description

The following is a description of the embodiments of the roller coating apparatus disclosed in the present invention by specific examples, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present invention. The utility model discloses the concrete embodiment of accessible other differences is implemented or is used, and each item detail in this specification also can be based on different viewpoints and application, does not deviate from the utility model discloses a carry out various modifications and changes under the design. The drawings of the present invention are merely schematic illustrations, and are not drawn to scale, but are described in advance. Furthermore, as will be appreciated by reference to and as illustrated in the accompanying drawings, the description is intended to highlight only those specific figures that are referenced in the description, but not to limit the scope of the description to which only those specific figures are referenced. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.

It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are used primarily to distinguish one element from another element or from one signal to another signal. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.

Referring to fig. 1 to 4, which are illustrations of embodiments of the present invention, it should be noted that the corresponding drawings and related numbers and shapes are only used for describing embodiments of the present invention, so as to facilitate understanding of the contents of the present invention, but not for limiting the scope of the present invention.

As shown in fig. 1 to 4, the present invention provides a roller coating apparatus 100 for coating a photoresist solution 300 on an outer surface 201 of a metal roller 200, and in this embodiment, the metal roller 200 is preferably made of stainless steel, the photoresist solution 300 is formed of positive photoresist, and the photoresist solution 300 is mainly made of Phenol-formaldehyde resin (Phenol-formaldehyde resin), but the present invention is not limited thereto. For example, the metal roller 200 may be made of tin, lead, zinc, aluminum, copper, brass, iron, nickel, cobalt, tungsten, chromium, or a metal having a hardness greater than that of chromium, and the photoresist liquid 300 may be made of a positive photoresist material such as Epoxy resin (Epoxy resin).

As shown in fig. 1 and 2, the roller coating apparatus 100 includes a coating device 1 located adjacent to the metal roller 200, a rotating device 2 partially installed at the metal roller 200, a temperature control device 3 detachably connected to the rotating device 2, a heat insulating member 4 located adjacent to the inner side of the metal roller 200, and two protection strips 5, wherein one protection strip 5 is sleeved at one end of the metal roller 200, and the other protection strip 5 is sleeved at the other end of the metal roller 200, but the present invention is not limited thereto. For example, in other embodiments not shown in the present disclosure, the roller coating apparatus 100 may not include the heat-insulating member 4 and the two protection strips 5.

As shown in fig. 1, the coating apparatus 1 includes at least one nozzle 11, a moving mechanism 12 connected to at least one of the nozzles 11, and a distance adjusting mechanism (not shown) electrically connected to at least one of the nozzles 11, wherein at least one of the nozzles 11 is used for spraying the photoresist solution 300 onto the outer surface 201, and the moving mechanism 12 is used for moving at least one of the nozzles 11 along a length direction L of the metal roller 200. When the moving mechanism 12 moves, at least one of the nozzles 11 will spray the photoresist 300 on the outer surface 201 at the same time.

It should be noted that the distance adjusting mechanism can be used to adjust the distance between the nozzle opening of at least one nozzle 11 and the outer surface 201 of the metal roller 200 to be between 0.1 mm and 20 mm, and at least one nozzle 11 is a piezoelectric nozzle, but the present invention is not limited thereto. For example, in other embodiments, at least one of the nozzles 11 may be a continuous nozzle.

In more detail, when at least one of the nozzles 11 is a piezoelectric nozzle, the shape of the photoresist liquid 300 when it is formed into a droplet is more regular than that of the existing coating nozzle, and the photoresist liquid 300 can be more precisely disposed on the outer surface 201 when it is sprayed. In addition, when at least one of the nozzles 11 is a piezoelectric nozzle, the photoresist liquid 300 does not need to be heated, so that the photoresist liquid 300 is not easily chemically changed, and since the temperature of the photoresist liquid 300 is continuously maintained in a stable state, even after the photoresist liquid 300 is continuously sprayed for a long time, the viscosity and the surface tension of the photoresist liquid 300 are relatively maintained stable, so that the uniformity of the photoresist liquid 300 applied to the outer surface 201 of the metal roller 200 can be improved.

When at least one of the nozzles 11 is a continuous nozzle, the speed of forming the liquid drops by the photoresist 300 is increased, so that the spraying speed of at least one of the nozzles 11 is increased. It should be noted that, when at least one of the nozzles 11 is a piezo-type nozzle or a continuous-type nozzle, at least one of the nozzles 11 is also a solvent-type nozzle, otherwise at least one of the nozzles 11 will be easily corroded to reduce the service life.

As shown in fig. 1 and 4, the rotating device 2 includes a clamping mechanism 21, a rotating shaft 22 clamped by the clamping mechanism 21, and a speed control mechanism (not shown) electrically coupled to the rotating shaft 22, and the rotating shaft 22 can be detachably disposed inside the metal roller 200. Wherein the clamping mechanism 21 is configured to rotate the rotating shaft 22, and the speed control mechanism is configured to control the rotating shaft 22 such that the rotating shaft 22 rotates at a speed between 1 and 120 Revolutions Per Minute (RPM).

As shown in fig. 2 and 3, the temperature control device 3 includes a conductive member 31 detachably connected to one end of the rotating shaft 22 and a heating member 32 disposed inside the metal roller 200, and the heating member 32 is electrically coupled to the conductive member 31. Wherein the conductive element 31 is a conductive slip ring, and the conductive element 31 can be used to provide power to the heating element 32, so that the heating element 32 heats the metal roller 200, and the temperature of the outer surface 201 of the metal roller 200 is between 40 degrees celsius and 60 degrees celsius.

As shown in fig. 2 and 3, the heat retaining member 4 is disposed between the heating member 32 and the rotating shaft 22 (in other words, the heating member 32 is sandwiched between the heat retaining member 4 and the rotating shaft 22), and the heat retaining member 4 can be used to maintain the temperature inside the metal roller 200 at 1 to 100 degrees celsius.

As shown in fig. 4, the two protection bars 5 are used to prevent the photoresist solution 300 from flowing between the heat preservation member 4 and the rotating shaft 22 when the photoresist solution 300 is sprayed on the outer surface 201, so as to reduce the probability of failure caused by the contact of the heating member 32 with the photoresist solution 300.

[ advantageous effects of the embodiments ]

The utility model discloses an one of them beneficial effect lies in, the utility model provides a gyro wheel coating equipment 100 can pass through "it is right that electrically conductive 31 can be used for the right heating member 32 provides electric power, makes heating member 32 is right metal gyro wheel 200 heats, and makes metal gyro wheel 200 the temperature of surface 201 is between the technical scheme of 40 degrees ~ 60 degrees centigrade" the messenger photoresist liquid 300 is coated metal gyro wheel 200 degree when surface 201 degree of consistency promotes, and then makes formed after the solidification of photoresist liquid 300 the quality of photoresist layer promotes.

More specifically, the roller coating apparatus 100 can make the photoresist liquid 300 be disposed in front of the outer surface 201 so as not to be excessively dissipated into the air by the technical means that the distance between the at least one nozzle 11 and the outer surface 201 of the metal roller 200 is between 0.1 mm and 20 mm by the distance adjusting mechanism.

Still further, the roller coating apparatus 100 can maintain the temperature of the outer surface 201 of the metal roller 200 at a temperature of 40 to 60 degrees celsius by means of "the heat insulating member 4 is disposed between the heating member 32 and the rotating shaft 22, and the heat insulating member 4 can be used to maintain the temperature of the inside of the metal roller 200 at a temperature of 1 to 100 degrees celsius".

More specifically, the roller coating apparatus 100 can prevent the photoresist liquid 300 from being thrown off by the centrifugal force generated when the metal roller 200 rotates when the rotating shaft 22 is disposed on the outer surface 201 of the metal roller 200 by the technical means that the speed control mechanism can be used to control the rotating shaft 22 to rotate the rotating shaft 22 at a speed ranging from 1 revolution/minute (RPM) to 120 RPM, and further improve the uniformity of the photoresist liquid 300 coated on the outer surface 201 of the metal roller 200.

The above disclosure is only a preferred and practical embodiment of the present invention, and is not intended to limit the scope of the claims of the present invention, so that all the modifications of the equivalent technology made by the contents of the specification and the drawings are included in the scope of the claims of the present invention.

Claims

1. A roller coating apparatus for coating an outer surface of a metal roller with a photoresist solution, the roller coating apparatus comprising:

a coating device comprising at least one nozzle, and the coating device is used for spraying the photoresist liquid on the outer surface;

a rotating shaft positioned adjacent to the coating device and adapted to be removably disposed inside the metal roller; and

a temperature control device, comprising:

a conductive member detachably connected to one end of the rotating shaft; and

the heating element is electrically coupled to the conductive element and is arranged on the inner side of the metal roller;

wherein the conductive element can be used for providing power for the heating element, so that the heating element heats the metal roller, and the temperature of the outer surface of the metal roller is between 40 and 60 ℃.

2. The roller coating apparatus of claim 1 wherein said coating device further comprises a moving mechanism coupled to at least one of said nozzles and configured to move at least one of said nozzles along a length of said metal roller.

3. The roller coating apparatus of claim 1, wherein the coating device further comprises a distance adjustment mechanism electrically connected to at least one of the nozzles, and wherein the distance adjustment mechanism is operable to provide a distance between the at least one of the nozzles and the outer surface of the metal roller of between 0.1 mm and 20 mm.

4. The roller coating apparatus of claim 1 wherein at least one of said nozzles is a piezoelectric nozzle.

5. The roller coating apparatus of claim 1 wherein at least one of the nozzles is a continuous nozzle.

6. The roller coating apparatus of claim 1, further comprising two guard bars, wherein one of the guard bars is sleeved on one end of the metal roller, and the other guard bar is sleeved on the other end of the metal roller.

7. The roll coating apparatus of claim 1 wherein said conductive member is a conductive slip ring.

8. The roll coating apparatus of claim 1, further comprising a heat retaining member disposed between the heating member and the rotating shaft, and wherein the heat retaining member is operable to maintain the interior of the metal roll at a temperature between 1 degree celsius and 100 degrees celsius.

9. The roll coating apparatus of claim 1, further comprising a rotating device, and wherein the rotating device comprises a clamping mechanism and the rotating shaft clamped by the clamping mechanism, and wherein the clamping mechanism is configured to rotate the rotating shaft.

10. The roller coating apparatus of claim 9, wherein the rotating device further comprises a speed control mechanism electrically coupled to the rotating shaft and operable to control the rotating shaft such that the rotating shaft rotates at a speed between 1 rpm and 120 rpm.