Device for pattern building in layers
OwnerIngo Ederer, Rainer Höchsmann +2inventors
InventorsIngo Ederer, Rainer Höchsmann, Bernhard Graf, Alexander Kudernatsch
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Abstract
Described herein is a device for pattern building in layers, which has a frame (1), a vertically movable and interchangeable workpiece platform (17), and a material feeder with a spreader (4), whereby the spreader (4) serves to feed material from a storage bin situated in the workspace above the workpiece platform (17), and the workpiece platform (17) is fixed at least when building a pattern. The workpiece platform (17) is accordingly loaded into the device from one side and unloaded from the other side of the device.
Claims17
A method for pattern building in layers, comprising the steps of:
- a) feeding material including a molding sand to a work piece platform that is positioned within a frame of a pattern building device, the workpiece platform being height adjustable, the workpiece platform being essentially rectangular in plan view, and the workpiece platform having a pair of longer edges and a pair of shorter edges when viewed from the top;
- b) spreading the material including the molding sand by translating a spreader along at least one of the shorter edges of the rectangular cross-section of the workpiece platform;
- c) selectively contacting the material including the molding sand with a casting resin and curing agent;
- d) curing the casting resin in contact with the molding sand for forming a cured layer;
- e) adjusting the height of the workpiece platform;
- f) successively repeating at least steps (a)–(d) until a metal casting mold pattern is completed;
- g) and balancing out sag of the spreader along its length.
A method for pattern building in layers, comprising the steps of:
- a) loading a workpiece platform within a frame of a pattern building device from a first side of the pattern building device, the workpiece platform being essentially rectangular in plan view, and the workpiece platform having a pair of longer edges and a pair of shorter edges when viewed from the top;
- b) feeding material to the workpiece platform that is positioned within a frame of a pattern building device, the workpiece platform being height adjustable within the frame;
- c) spreading the material by translating a spreader along at least one of the shorter edges of the rectangular cross-section of the workpiece platform;
- d) balancing out sag of the spreader along its length;
- e) curing the material for forming a cured layer;
- f) adjusting the height of the workpiece platform;
- and
- g) successively repeating at least steps (a)–(c) until a pattern is completed;
- and
- h) unloading the workpiece platform from a second side of the device.
A method for pattern building in layers, comprising the steps of:
- a) feeding material including a molding sand admixed with a resin to a work piece platform that is positioned within a frame of a pattern building device, the workpiece platform being height adjustable, the workpiece platform being essentially rectangular in plan view, and the workpiece platform having a pair of longer edges and a pair of shorter edges when viewed from the top;
- b) spreading the material including the admixture of molding sand and resin by translating a spreader along at least one of the shorter edges of the rectangular cross-section of the workpiece platform;
- c) balancing out sag of the spreader along its length;
- d) selectively contacting the material the admixture of molding sand and resin with a curing agent via an ink-jet deposition head;
- e) curing the casting resin in contact with the molding sand for forming a cured layer;
- f) adjusting the height of the workpiece platform;
- g) successively repeating at least steps (a, b, and d–f) until a metal casting mold pattern is completed.
Dependencies are inferred from the claim text.