Method for roughing surfaces of concrete casted blocks

• US 20030173697A1
• Filed: 03/18/2003
• Published: 09/18/2003
• Est. Priority Date: 04/26/2001
• Status: Active Grant

• Current Assignee: Techno-Bloc Inc.
• Original Assignee: Techno-Bloc Inc.
• Inventors: Ciccarello, Charles, Laporte, Hugo, Laporte, Yvon
• Granted Patent: US 6,843,947 B2
• Time in Patent Office: Days
• US Class Current: 264/138
• CPC Class Codes: B28B 11/0818 for roughening, profiling, corrugating
• CPC Class Codes: B28B 11/089 Using impacting tools
• CPC Class Codes: B28D 1/006 Artificial ageing of stones; Providing stones with an antique appearance
• CPC Class Codes: B28D 1/181 using cutters loosely mounted on a turning tool support
• CPC Class Codes: B28D 7/04 for supporting or holding work or conveying or discharging work B28D1/047, B28D5/0041, B28D5/0052 take precedence

Abstract

A method for roughing surfaces and edges of concrete casted blocks, comprising a block support surface having a plurality of surface sections. A first of the surface sections has a rear end thereof above an adjacent front end of a second of the surface sections to create a ledge for projecting a leading edge portion of concrete blocks conveyed over the first surface section. A first roughing device has a plurality of impacting elements thereon for roughing concrete blocks. The first roughing device is disposed generally above the rear end of the first surface section for abrading a projecting leading edge portion of each concrete block as they are conveyed over the rear end. A conveyor displaces concrete blocks over the first and second surface sections, the blocks being tilted when reaching a predetermined position over the ledge to avoid being abraded by the roughing device.

Claims

1. A method for roughing portions of solid concrete casted blocks comprising the steps of:

(i) conveying a plurality of concrete casted blocks disposed in side-by-side aligned relationship over a block support surface having a straight front edge and a rear end edge disposed parallel to one another, at least a section of said support surface being inclined to create a ledge at said rear end edge extending across a panel path of said plurality of concrete casted blocks in side-by-side relationship for projecting a leading edge portion of said concrete blocks conveyed over said ledge;

(ii) providing at least a roughing device having a plurality of impacting elements thereon and disposed a predetermined distance above said block support surface forwardly of said rear end edge; and

(iii) impacting said leading edge portions of said concrete blocks in side-by-side relationship by said roughing device as they are projected over said ledge by said conveying means, said blocks being tilted when reaching a predetermined position over said ledge.

2. The method according to claim 1, wherein said step (i) includes said block support surface having a gap at said ledge for exposing a bottom trailing edge portion of each said concrete block in said gap, wherein said step (ii) includes providing at least another roughing device having a plurality of impacting elements thereon and disposed at a predetermined position below said gap, and wherein step (iii) includes impacting said bottom trailing edge portion of said concrete blocks as they fall in said gap by said conveying means.

3. The method according to claim 1, wherein a plurality of block support surfaces are provided in series, said concrete blocks having untreated edge portions placed in a leading position when transferred between subsequent block support surfaces, the steps (i), (ii) and (iii) being repeated over each said block support surface to treat all edge portions of each said concrete blocks.

4. The method according to claim 3, further comprising the step of treating a top surface of each said concrete block by a further roughing device.