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US 11,602,882 B2Granted
Straining mechanism and screw extruder including straining mechanism
AssigneeNihon Spindle Manufacturing Co., Ltd.
InventorsMakoto Irie, Hiroyuki Fukuda, Akio Koro
Life of this patent
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Abstract
There are provided a straining mechanism and a screw extruder including the straining mechanism, which can minimize material passing resistance in a breaker plate even, in a large-sized apparatus having high throughput, and which can improve the throughput by suppressing load power of the apparatus and heat generation of a material. For this purpose, a backup plate having an opening rate higher than an opening rate of a breaker plate and supporting the breaker plate is installed on a rear surface side of the breaker plate supporting a screen mesh.
Claims18
A straining mechanism comprising:
- a screen mesh configured to remove a foreign substance from material when the material passes through the screen mesh to a surface of the screen mesh;
- a breaker plate affixed to the surface of the screen mesh, breaker plate holes through the breaker plate are configured to pass the material from the surface of the screen mesh to a surface of the breaker plate;
- and
- a backup plate affixed to the surface of the breaker plate, backup plate holes through the backup plate are configured to pass the material from the surface of the breaker plate to a surface of the backup plate,
- wherein the breaker plate holes are between the backup plate holes and screen mesh,
- one of the backup plate holes extends to two or more of the breaker plate holes,
- the two or more of the breaker plate holes extend from the screen mesh to the one of the backup plate holes, and
- the screen mesh is between a dual shaft screw and the breaker plate holes.
5 more elements
Dependencies are inferred from the claim text.