Slide hopper and multilayer coating apparatus having the same

• US 20060096529A1
• Filed: 09/16/2005
• Published: 05/11/2006
• Est. Priority Date: 11/05/2004
• Status: Active Grant

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: Lin, Jhy-Chain
• Granted Patent: US 7,347,898 B2
• Time in Patent Office: Days
• US Class Current: 118/411
• CPC Class Codes: B05C 5/007 Slide-hopper coaters, i.e. apparatus in which the liquid or other fluent material flows freely on an inclined surface before contacting the work
• CPC Class Codes: B05C 5/008 Slide-hopper curtain coaters
• CPC Class Codes: B05C 5/0254 Coating heads with slot-shaped outlet B05C5/0283 takes precedence
• CPC Class Codes: B05C 9/06 for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
• CPC Class Codes: Y10S 118/02 Bead coater
• CPC Class Codes: Y10S 118/04 Curtain coater

Abstract

The present coating system (100) provides a multilayer coating apparatus for coating an object (112). The multilayer coating apparatus includes a slide hopper (116, 140). The slide hopper includes a main body (116, 140), the main body essentially including a plurality of separate cavities (118, 120, 122) for receiving coating materials, a plurality of separate slots (124, 126, 128) in communication with the corresponding cavities, and a plurality of separate projection portions (130, 132, 134) formed on the slide hopper, the projection portions each having a substantially sloping slide surface (131, 133, 135) configured for allowing the particular coating material exiting from the slot to directly flow onto the object.

Claims

1. A slide hopper for a multilayer coating apparatus for coating an object, the slide hopper comprising:

a main body, the main body having a plurality of separate cavities configured for receiving respective coating materials therein, the main body further including a plurality of separate slots in fluid communication with the corresponding cavities; and

a plurality of separate projection portions formed on the slide hopper, the projection portions each having a substantially sloping slide surface configured for allowing the respective coating material to exit from the corresponding slot and to directly flow onto the object.

2. The slide hopper as described in claim 1, wherein the main body is made of one of a ceramic material and a ceramic-based composite.

3. The slide hopper as described in claim 2, wherein the one of a ceramic material and a ceramic-based composite is selected from the group consisting of Al_xO_y, Zr_xO_y, Mg₂SiO₄, ZrSiO, Si_xN_y, Ti_xN_y, Al_xN_y, B_xN_y, Si_xC_y, Ti_xC_y, W_xC_y, and Cr_xC_y;

and composites composed substantially of at least one of such materials.

4. The slide hopper as described in claim 1, wherein the slide surface is flat.

5. The slide hopper as described in claim 1, wherein the slide surface is curved.

6. The slide hopper as described in claim 1, further comprising at least one guiding means for guiding the respective coating materials to separately flow from the slide surfaces to the surface of the object.

7. A multilayer coating apparatus for coating an object, the multilayer coating apparatus comprising:

a slide hopper comprising;

a main body, the main body including;

a plurality of separate cavities formed therein, each cavity being configured for receiving a corresponding coating material therein;

a plurality of separate slots, each slot being in fluid communication with a corresponding cavity; and

a plurality of separate projection portions formed on the slide hopper, each projection portion corresponding to a respective slot in the main body, the projection portions each having a substantially sloping slide surface configured for allowing the respective coating material exiting from the corresponding slot to directly flow onto the object; and

a roller spindle configured for winding an object therearound and driving the object to move jointly therewith.

8. The multilayer coating apparatus as described in claim 8, wherein the main body is made of one of a ceramic material and a ceramic-based composite.

9. The multilayer coating apparatus as described in claim 8, wherein the main body is comprised of at least one material selected from the group consisting of Al_xO_y, Zr_xO_y, Mg₂SiO₄, ZrSiO_y, Si_xN_y, Ti_xN_y, Al_xN_y, B_xN_y, Si_xC_y, Ti_xC_y, W_xC_y, and Cr_xC_y.

10. The multilayer coating apparatus as described in claim 8, wherein the slide surface is flat.

11. The multilayer coating apparatus as described in claim 8, wherein the slide surface is curved.

12. The multilayer coating apparatus as described in claim 8, wherein the slide hopper further comprises at least one guiding means for guiding the respective coating materials to separately flow from the slide surfaces to the surface of the object.

13. The multilayer coating apparatus as described in claim 8, further comprising an inhaled air removal device configured for removing air carried by the object.