Disk flaker knife assembly
View Patent ↗A knife assembly includes a knife blade and a mounting assembly having a knife blade support portion extending along a longitudinal axis of the mounting assembly. The knife blade support portion is constructed and arranged to position a cutting edge of the knife blade distal to a leading edge of the mounting assembly. The mounting assembly also has a counter knife portion disposed at the leading edge of the mounting assembly that defines a set back distance with the knife blade. The set back distance is constructed and arranged to provide a travel path for a wafer.
1. A knife assembly, comprising:
a knife blade; and
a mounting assembly for the knife blade, the mounting assembly having:
a knife blade support portion extending along a longitudinal axis of the mounting assembly, the knife blade support portion constructed and arranged to position a cutting edge of the knife blade distal to a leading edge of the mounting assembly, and
a counter knife portion integrally formed with the knife blade support portion, the counter knife portion disposed at the leading edge of the knife blade support portion and defining a set back distance with the knife blade, the set back distance constructed and arranged to provide a travel path for a wafer,
wherein the knife blade support portion defines a knife blade body support portion and a knife blade base support portion, the knife blade body support portion being substantially orthogonal to the knife blade base support portion, the knife blade body support portion and the knife blade base support portion extending along the longitudinal axis of the mounting assembly.
2. The knife assembly of claim 1 , wherein the counter knife portion defines an angle of between about 35° and about 65° relative to a planar surface of the knife blade body support portion.
3. The knife assembly of claim 1 , wherein:
the mounting assembly defines a set of openings within the knife blade body support portion and disposed along the longitudinal axis of the mounting assembly, each opening of the set of openings configured to align with an opening of a corresponding set of openings of a face gear of a disk flaker device; and
the mounting assembly comprises a set of coupling mechanisms configured to insert within the openings defined by the mounting assembly and within the openings defined by the face gear of the disk flaker device, the coupling mechanisms being configured to secure the mounting assembly to the face gear.
4. The knife assembly of claim 3 , wherein:
each coupling mechanism of the set of coupling mechanisms comprises a head portion, at least part of the head portion extending past the knife blade base support portion; and
the knife blade defines a set of openings disposed along a longitudinal axis of a knife blade body portion of the knife blade, each opening at least partially surrounding the head portion of a corresponding coupling mechanism.
5. The knife assembly of claim 4 , wherein each opening defined by the knife blade extends from the knife blade body portion to the knife blade base portion to define a slot-shaped opening.
6. The knife assembly of claim 1 , wherein the counter knife portion has a face that defines a counter knife angle that transitions, along the longitudinal axis of the mounting assembly, from a first angle at a first end of the mounting assembly to a second angle at a second end of the mounting assembly relative to the planar surface of the knife blade body support portion.
7. The knife assembly of claim 6 , wherein the counter knife angle defined by the face of the counter knife portion transitions from about 35° at the first end of the mounting assembly to about 65° at the second end of the mounting assembly.
8. The knife assembly of claim 1 , wherein the knife blade comprises a body portion and a cutting portion disposed along a first edge of the body portion, the cutting portion being formed from a material having a hardness of at least about 60 HRC.
9. A disk flaker device, comprising:
a disk having at least one knife assembly securing mechanism; and
a knife assembly carried by the at least one knife assembly securing mechanism, the knife assembly having
a knife blade, and
a mounting assembly for the knife blade, the mounting assembly having:
a knife blade support portion extending along a longitudinal axis of the mounting assembly, the knife blade support portion constructed and arranged to position a cutting edge of the knife blade distal to a leading edge of the mounting assembly, and
a counter knife portion integrally formed with the knife blade support portion, the counter knife portion disposed at the leading edge of the knife blade support portion and defining a set back distance with the knife blade, the set back distance constructed and arranged to provide a travel path for a wafer,
wherein the knife blade support portion defines a knife blade body support portion and a knife blade base support portion, the knife blade body support portion being substantially orthogonal to the knife blade base support portion, the knife blade body support portion and the knife blade base support portion extending along the longitudinal axis of the mounting assembly.
10. The disk flaker device of claim 9 , wherein the counter knife portion defines an angle of between about 35° and about 65° relative to a planar surface of the knife blade body support portion.
11. The disk flaker device of claim 9 , wherein:
the mounting assembly defines a set of openings within the knife blade body support portion and disposed along the longitudinal axis of the mounting assembly, each opening of the set of openings configured to align with an opening of a corresponding set of openings of a face gear of a disk flaker device; and
the mounting assembly comprises a set of coupling mechanisms configured to insert within the openings defined by the mounting assembly and within the openings defined by the face gear of the disk flaker device, the coupling mechanisms being configured to secure the mounting assembly to the face gear.
12. The disk flaker device of claim 11 , wherein:
each coupling mechanism of the set of coupling mechanisms comprises a head portion, at least part of the head portion extending past the knife blade base support portion; and
the knife blade defines a set of openings disposed along a longitudinal axis of a knife blade body portion of the knife blade, each opening at least partially surrounding the head portion of a corresponding coupling mechanism.
13. The disk flaker device of claim 12 , wherein each opening defined by the knife blade extends from the knife blade body portion to the knife blade base portion to define a slot-shaped opening.
14. The disk flaker device of claim 9 , wherein the counter knife portion has a face that defines a counter knife angle that transitions, along the longitudinal axis of the mounting assembly, from a first angle at a first end of the mounting assembly to a second angle at a second end of the mounting assembly relative to the planar surface of the knife blade body support portion.
15. The disk flaker device of claim 14 , wherein the counter knife angle defined by the face of the counter knife portion transitions from about 35° at the first end of the mounting assembly to about 65° at the second end of the mounting assembly.
16. The disk flaker device of claim 9 , wherein the knife blade comprises a body portion and a first cutting portion disposed along a first edge of the body portion, the first cutting portion being formed from a material having a hardness of at least about 60 HRC.
17. A knife assembly, comprising:
a knife blade; and
a mounting assembly having:
a knife blade support portion extending along a longitudinal axis of the mounting assembly, the knife blade support portion constructed and arranged to position a cutting edge of the knife blade distal to a leading edge of the mounting assembly, and
a counter knife portion disposed at the leading edge of the mounting assembly and defining a set back distance with the knife blade, the set back distance constructed and arranged to provide a travel path for a wafer;
wherein the knife blade support portion defines a knife blade body support portion and a knife blade base support portion, the knife blade body support portion being substantially orthogonal to the knife blade base support portion, the knife blade body support portion and the knife blade base support portion extending along the longitudinal axis of the mounting assembly;
the mounting assembly defining a set of openings within the knife blade body support portion and disposed along the longitudinal axis of the mounting assembly, each opening of the set of openings configured to align with an opening of a corresponding set of openings of a face gear of a disk flaker device;
the mounting assembly comprises a set of coupling mechanisms configured to insert within the openings defined by the mounting assembly and within the openings defined by the face gear of the disk flaker device, the coupling mechanisms being configured to secure the mounting assembly to the face gear;
each coupling mechanism of the set of coupling mechanisms comprises a head portion, at least part of the head portion extending past the knife blade base support portion; and
the knife blade defines a set of openings disposed along a longitudinal axis of a knife blade body portion of the knife blade, each opening at least partially surrounding the head portion of a corresponding coupling mechanism.
18. The method of claim 17 , wherein an inner wall defining each opening of the set of openings being configures to substantially contact at least one lateral face of a set of lateral faces of each head portion of each coupling mechanism.