TWI325343B - Scraper structure and scraping device using the same - Google Patents

Description

1325343

• 达达号: TW3588PA IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a doctor blade structure and a scraping device therefor, and more particularly to a method for scraping a liquid surface of a diaphragm The scraper structure and the scraping device using the same. [Prior Art] Liquid crystal display technology has been developed in recent years. 'Liquid LCD display panels of various sizes have been widely used in various consumer electronic products such as mobile phones, notebook computers and flat-panel TVs. . As consumer electronics products become more and more popular among consumers, the demand for liquid crystal display panels in the market has also increased. Generally, a liquid crystal display panel performs light deflection through a liquid crystal layer and two polarizing plates to display a picture. The conventional polarizing plate process includes dyeing, stretching, and washing a polyvinyl alcohol (Poly Vinyl Alcoho PVA) film.

• Lamination of a triacetate cellulose film (TAC film) and drying. Since the film will carry a large amount of moisture on the surface after leaving the water tank, it will inevitably affect the quality of the subsequent process steps, which in turn affects the quality of the polarizing plate product. Currently, the industry generally uses a nip roll to remove moisture from the surface of the diaphragm. The two sides of the diaphragm are pressed by the two pinch rollers to remove moisture. However, this method is easy to generate water between the pinch wheels and it is impossible to remove the moisture on the surface of the diaphragm. When there is excessive moisture on the surface of the diaphragm, it will affect the quality of the TAC film. It also affects the drying effect of the sheet.

TW3588PA 5 1325343

- Sanda number: TW3588PA / fruit. Overall, it is not effective to increase the yield of the product. SUMMARY OF THE INVENTION The present invention relates to a scraper structure and a scraping device using the same, which utilizes a method in which a scraping blade contacts a surface of a diaphragm to scrape a liquid on a surface of the diaphragm, thereby improving the effect of drying the diaphragm. Further improve the surface quality of the diaphragm, in addition to better use convenience. According to one aspect of the invention, a doctor blade structure for scraping a liquid on a diaphragm surface is provided. The doctor blade structure includes a base, a doctor blade holder, a doctor blade, and at least one moving member. The blade holder is rotatably disposed above the base. The doctor blade is disposed in the blade holder, and a portion of the doctor blade protrudes out of the blade holder and contacts the diaphragm. The moving member is coupled to the base to urge the base to move. The doctor blade scrapes off the liquid on the surface of the film as it moves relative to the doctor blade structure. According to another aspect of the invention, a scraping device for scraping liquid from a surface of a diaphragm is provided, the scraping device comprising a first to knife structure and a second doctor blade structure. The first doctor blade structure includes a first base, a first doctor seat, a first doctor blade, and at least one moving member. The first blade holder is rotatably disposed above the first base. The first to blade is disposed in the first doctor blade, and a portion of the first doctor blade protrudes from the first to the outside of the holder and contacts the diaphragm. The first to the blade scrapes off the liquid on the surface of the diaphragm as the diaphragm moves relative to the first doctor blade structure. The moving member is coupled to the first base for pushing the first base to move. The first scraper structure and the second scraper structure are respectively disposed on opposite sides of the diaphragm. TW3588PA 6 1325343

- 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The scraper structure and the scraping device using the same can be applied to the original production line of the diaphragm, and the diaphragm is contacted at an angle by the scraping blade of the elastic material, and the liquid on the surface of the diaphragm is directly scraped off from the production operation, and further Improve the effect of diaphragm drying in subsequent processes. A preferred embodiment is described below as a detailed description of the invention. This example is intended to be illustrative, and is not intended to limit the scope of the invention. Further, the illustrations in the embodiments also omit unnecessary elements to clearly show the technical features of the present invention. Referring to Figures 1 and 2, FIG. 1 is a schematic view of a scraping device in accordance with a preferred embodiment of the present invention; and FIG. 2 is an exploded view of the first scraper structure in FIG. The scraping device 100 is for scraping the liquid on the surface of a diaphragm 80, and includes at least two scraper structures. In the present embodiment, a first scraper structure 20 and a second scraper structure 40 are taken as an example. The first doctor blade structure 20 includes a first base 22, a first doctor blade holder 24, a first doctor blade 26 and at least one moving member 28(1). The first blade holder 24 is rotatably disposed above the first base 22. The first doctor blade 26 is disposed in the first doctor blade holder 24. A portion of the first doctor blade 26 protrudes out of the first blade holder 24 and contacts the diaphragm 80 (shown in FIG. 1). When the diaphragm 80 is opposite When the first doctor blade structure 20 is moved, the first doctor blade 26 scrapes off the liquid on the surface of the diaphragm 80. The moving member 28(1) is coupled to the first base 22 and is moved by the TW3588PA 7 1325343 Sanda number: TW3588PA to push the first base 22. The first doctor blade structure 2 and the second doctor blade structure 40 are respectively disposed on opposite sides of the diaphragm 8 to respectively scrape the liquid on both surfaces of the diaphragm 80.

Further, the first blade structure 2 further includes a rotating member 23(1), a turntable 233, and a scale indicating member 234. The rotating member 23(1)a is again placed on the first base 22 and includes a first rotating seat 231 and a second rotating base 232. The two ends of the first blade holder 24 are respectively pivotally connected to the first rotating seat 231 and the second rotating seat 232, so that the first blade 26 can be rotated relative to the first base 22. In this embodiment, the turntable 233 is disposed on the first rotating base 231, for example, and the user can rotate the turntable 233 to rotate the first blade holder 24 to adjust the angle between the first blade 26 and the diaphragm 80. ;9 1. In addition, the 'scale indicator element 234 is disposed on the second rotating base 232, for example, to rotate synchronously with the first blade holder 24 to display the angle of the first blade holder 24 relative to the first base 22, thereby knowing the first blade The angle between the sheet 26 and the diaphragm 80 is 6»1. In the present embodiment, the angle between the first doctor blade 26 and the diaphragm 80 is between about 15 and 45 degrees to achieve a good liquid scraping effect. Further, the first to blade 26 is made of an elastic material, which corresponds to a Japanese Industrial Standard (JISA) hardness of between about 65 and 90 degrees, and is prevented from being worn when the diaphragm 80 is moved relative to the first blade 26. The material of the first-to-blade 26 is a rubber material such as rubber (10) R), rubber (= rubber (Si·0, natural rubber (10)) or urethane rubber (PU). In addition, in this embodiment, 29(1) is connected to the first base 22, and the moving member 28(1) is further connected to the moving member 28(1) via a connecting door.

TW3588PA 8

Sanda number: TW3588PA A support frame 90 (1). The first base 22 has a slot 221 into which one end of the connector 29 (1) is inserted, and the other end of the connector 29 (1) is coupled to the moving member 28 (1). The moving member 28 (1) is, for example, a pneumatic cylinder that urges the first base 22 to move in the direction X to adjust the amount of force applied by the first doctor blade 26 to contact the diaphragm 80. The connector 29(1) is of a rigid material for supporting the first blade structure 20 to the support frame 90(1) via the first base 22, the connector 29(1) and the moving member 28(1). The second doctor blade structure 4 of the present embodiment preferably has the same structure as the first blade structure 20. The second to knife structure 4 includes a second base 42, a second blade holder 44 and a second doctor blade 46. The second to blade holder 44 is rotatably disposed above the first base 42 and the second to blade 46 is disposed within the second blade holder 44. A portion of the second doctor blade 46 protrudes out of the second blade holder 44 and contacts the diaphragm 80. When the diaphragm 8 is moved relative to the second blade structure 40, the second blade 46 scrapes off the surface of the diaphragm 80. liquid. The second doctor blade 46 is also a resilient material and will not be described again here. The first doctor blade 26 contacts a first position P1 of the diaphragm 80, and the second doctor blade 46 contacts a second position j>2 of the diaphragm 80. The first position is completed and the second position P2 has a spacing D. This spacing is between 15 and 55 cm. The first doctor blade 26 and the second doctor blade 46 are in close contact with the diaphragm 80, respectively, to enhance the effect of the scraping device 1 〇〇 scraping the liquid. Further, the second blade structure 40 is erroneously adjusted by the rotating member 23(2) to an angle 02' between the second doctor blade 46 and the diaphragm 80. The angle 5 > 2 is approximately between 15 and 45 degrees. The second doctor blade structure 40 is also coupled to the moving member 28(2) by a connector 29(2) to urge the second base 42 to move. The second to knife structure 4 is via TW3588PA 9 1325343

Ξ8^: TW3588PA The second base 42, the connecting member 29(2), and the moving member 28(2) are supported on the support frame 90(2).

On the other hand, the removing device 100 further includes at least one roller assembly. In the embodiment, the two roller assemblies 60(1) and 60(2) are taken as an example for illustration. The two roller assemblies 60 (1) and 60 (2) are respectively disposed above the first scraper structure 20 and below the second scraper structure 40 for driving the diaphragm 80 in the direction Y relative to the first scraper structure 2 And the second scraper structure 40 moves. When the roller assemblies 60(1) and 60(2) drive the diaphragm 80 to move, the diaphragm 80 is slightly tensioned so that the diaphragm 80 has a force to facilitate contact between the first blade 26 and the second blade 46. On the diaphragm 8 。. The above-mentioned scraper structure and the scraping device using the same according to the preferred embodiment of the present invention utilize a method in which the blade is disposed in the blade holder, and a part of the scraping blade protrudes out of the blade holder and contacts the diaphragm. When the diaphragm moves relative to the doctor blade, the doctor blade scrapes off the liquid on the surface of the diaphragm, which can improve the drying effect of the diaphragm and improve the quality of the diaphragm. In addition, the scraper structure in the scraping device is the same, and there is no need to design and manufacture different knots to save the cost. In this implementation, the two-part structure is preferably: t-spacing, and respectively contacting the opposite sides of the diaphragm, when the diaphragm moves relative to the blade structure and the second to knife structure, the first to the blade and the second At the same time, the film scrapes off the liquid on both surfaces of the diaphragm, which can improve the angle between the blade and the diaphragm due to the scraping blade, and the film can be applied to the same material f and the thickness of the film. Material characteristics, the same scraping device can also be used; ^ quality scraping blade, greatly improving the convenience of use ^ also use the material

TW3588PA 1325343

。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims. TW3588PA 11 1325343

- Sanda number: TW3588PA [Simplified illustration of the drawings] Fig. 1 is a schematic view showing a scraping device according to a preferred embodiment of the present invention; and Fig. 2 is an exploded view showing the structure of the first doctor blade in Fig. 1. [Main component symbol description] 20: First scraper structure 22: First base • 23(1), 23(2): Rotating member 24: First blade holder 26: First doctor blade 28(1), 28(2 ): moving member 29 (1), 29 (2): connecting member 40: second scraper structure 42: second base 44: second scraper holder 46: second scraping blade 60 (1), 60 (2): Roller assembly 80: diaphragm 90(1), 90(2): support frame 100: scraping device 221: slot 231: first rotating seat 232: second rotating seat TW3588PA 12

Claims (1)

1325343 yy years? Month / phase repair (more) is replacing page 2 〇 10 / 3 / 丨 8 correction ten, the scope of patent application: 1. A scraper structure for scraping a liquid on the surface of a diaphragm, the blade structure comprises: a base; a scraper seat rotatably disposed above the base; a scraping blade having an elastic material disposed in the blade holder, wherein the scraping blade protrudes outside the blade holder and contacts the diaphragm; and at least one movement And a member coupled to the base for urging the base to move; wherein the doctor blade scrapes the liquid on the surface of the diaphragm when the diaphragm moves relative to the blade structure. 2. The doctor blade structure of claim 1, further comprising: a rotating member disposed on the base, the rotating member comprising: a first rotating seat, one side of the blade holder pivotally connected to the a first rotating base; and a second rotating base, the other side of the working block is pivotally connected to the second rotating base. 3. The squeegee structure of claim 2, wherein the rotating member further comprises: a turntable disposed on the first rotating base, the rotating sliding to rotate the turret to adjust the squeegee The angle between the sheet and the diaphragm. 4. The doctor blade structure of claim 3, wherein the angle is between 15 and 45 degrees. 5. For the scraper structure described in claim 1, wherein the scraping is 1325343? Monthly repair (more) replacement page 2010/3/18 Correction The Japanese Industrial Standard (JISA) hardness of the blade is between 65 and 90 degrees. 6. The doctor blade structure of claim 1, wherein the material of the doctor blade is selected from the group consisting of nitrile rubber (NBR), olefin rubber (EPT), silicone rubber, natural rubber (NR), and polyurethane. A group of rubber (PU). 7. A scraping device for scraping a liquid on a surface of a diaphragm, the scraping device comprising: a first scraper structure comprising: a first base; a first scraper seat rotatably disposed on the a first squeegee having an elastic material disposed in the first squeegee seat, a portion of the first squeegee protruding from the first squeegee seat and contacting the diaphragm, when the diaphragm The first doctor blade scrapes the liquid on the surface of the diaphragm when moving relative to the first blade structure; and at least one moving member is coupled to the first base for pushing the first base to move; and a second The scraper structure, the first scraper structure and the second scraper structure are respectively disposed on opposite sides of the diaphragm. 8. The scraping device of claim 7, wherein the first scraper structure further comprises: a rotating member disposed on the first base, the rotating member comprising: a first rotating seat, the first One side of one of the blade holders is pivotally connected to the first rotating seat; and a second rotating seat is pivotally connected to the other side of the first blade holder to the 15th 1325343? Month / 岔 哆 (more) is replacing page 2010/3/18 Correction Two rotating seats. 9. The scraping device of claim 8, wherein the rotating member further comprises: a turntable disposed on the first rotating seat, and the rotating portion of the rotating portion drives the first blade holder to rotate to adjust The first doctor blade is at an angle to one of the diaphragms. 10. The scraping device of claim 9, wherein the included angle is between 15 and 45 degrees. 11. The scraping device of claim 7, wherein the first industrial blade (JISA) hardness of the first doctor blade is between 65 and 90 degrees. 12. The scraping device of claim 7, wherein the material of the first doctor blade is selected from the group consisting of nitrile rubber (NBR), olefin rubber (EPT), silicone rubber, and natural rubber (NR). ) and the group of polyurethane rubber (PU). 13. The scraping device of claim 7, further comprising: at least one roller assembly for moving the diaphragm relative to the first scraper structure and the second to knife structure. 14. The scraping device of claim 7, wherein the second scraper structure comprises: a second base; a second scraper seat rotatably disposed above the second base; and an elastic a second scraping blade of material is disposed in the second blade holder, and a portion of the second doctor blade protrudes outside the second blade holder and contacts the 16 1325343 leap year? Month/Public Repair (More) Replacement Page 2010/3/18 Correction of the diaphragm, which scrapes the liquid on the surface of the diaphragm as it moves relative to the second blade structure. 15. The scraping device of claim 14, wherein the first doctor blade contacts a first position of the diaphragm, and the second doctor blade contacts a second position of the diaphragm, There is a spacing between the first location and the second location. 16. The scraping device of claim 15, wherein the spacing is between 15 and 55 cm. 17