IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0024919
(2001-12-18)
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발명자
/ 주소 |
- Gorman, Michael R.
- LaLiberte, Thomas R.
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출원인 / 주소 |
- 3M Innovative Properties Company
|
대리인 / 주소 |
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인용정보 |
피인용 횟수 :
6 인용 특허 :
11 |
초록
▼
Tool rolls and methods of using the tool rolls to manufacture articles with one or more structured surfaces are disclosed. The tool rolls include an outer surface that, when used in connection with materials of the proper viscosity or formability, can form a structured surface on an article. Because
Tool rolls and methods of using the tool rolls to manufacture articles with one or more structured surfaces are disclosed. The tool rolls include an outer surface that, when used in connection with materials of the proper viscosity or formability, can form a structured surface on an article. Because the tools are manufactured in roll-form, they can be advantageously used in continuous manufacturing processes. Alternatively, discrete articles may be processed using the tool rolls. The tool rolls are constructed of a cylindrical base roll and are wrapped with one or more continuous wires in a modified undulating helical pattern. The modified helical pattern results in the distance between the first wire and a reference plane transverse to the longitudinal axis of the base roll sequentially increasing and decreasing at least once when moving in one direction about a circumference of the base roll. The wires are used, in essence, to form a structured surface on the tool roll that is the negative of the structured surface to be formed on the articles processed using the tool roll. One or more of the wires wound around the base roll may include a plurality of voids formed therein that, when wound about the base roll, form a plurality of mold cavities on the outer surface of the tool roll. Alternatively, the helical pattern of one or more wound wires may be used to form a continuous helical structured surface, e.g., a helical groove or grooves.
대표청구항
▼
1. A tool roll comprising:a cylindrical base roll comprising first and second ends spaced apart along a longitudinal axis;a first wire comprising a plurality of first voids formed therein, the first wire being wound in helical coils around the base roll, wherein the plurality of first voids in the f
1. A tool roll comprising:a cylindrical base roll comprising first and second ends spaced apart along a longitudinal axis;a first wire comprising a plurality of first voids formed therein, the first wire being wound in helical coils around the base roll, wherein the plurality of first voids in the first wire form a plurality of first cavities, each cavity of the plurality of first cavities comprising an opening at an outer surface of the tool roll;wherein a distance between the first wire and a reference plane transverse to the longitudinal axis of the base roll sequentially increases and decreases at least once when moving in one direction about a circumference of the base roll. 2. A tool roll according to claim 1, wherein the distance between the first wire and the reference plane sequentially increases and decreases two or more times when moving in one direction about the circumference of the base roll. 3. A tool roll according to claim 1, wherein the distance between the first wire and the reference plane sequentially increases and decreases in a uniform pattern when moving in one direction about the circumference of the base roll. 4. A tool roll according to claim 1, wherein the distance between the first wire and the reference plane sequentially increases and decreases in a non-uniform pattern when moving in one direction about the circumference of the base roll. 5. A tool roll according to claim 1, wherein the first wire forms a sinusoidal helical pattern about the circumference of the roll. 6. A tool roll according to claim 1, further comprising a second wire wound around the base roll, wherein the second wire is located between adjacent helical coils of the first wire. 7. A tool roll according to claim 6, wherein the second wire comprises two opposing side walls, an inner edge facing the base roll and an outer edge facing outward from the base roll, and further wherein at least one of the two opposing side walls comprises a surface texture. 8. A tool roll according to claim 1, further comprising a wire winding surface proximate the first end of the base roll, wherein the first wire conforms to a profile of the first wire winding surface. 9. A tool roll according to claim 1, wherein the first wire comprises two opposing side walls, an inner edge facing the base roll and an outer edge facing outward from the base roll, and further wherein at least one of the two opposing side walls comprises a surface texture. 10. A tool roll comprising:a cylindrical base roll comprising first and second ends spaced apart along a longitudinal axis;a first wire comprising a plurality of first voids formed therein, the first wire being wound in helical coils around the base roll;a second wire wound around the base roll, wherein the second wire is located between adjacent helical coils of the first wire;wherein the second wire and the plurality of first voids in the first wire form a plurality of first cavities, each cavity of the plurality of first cavities comprising an opening at an outer surface of the tool roll;and wherein a distance between the first wire and a reference plane transverse to the longitudinal axis of the base roll sequentially increases and decreases at least once when moving in one direction about a circumference of the base roll. 11. A tool roll according to claim 10, wherein the distance between the first wire and the reference plane sequentially increases and decreases two or more times when moving in one direction about the circumference of the base roll. 12. A tool roll according to claim 10, wherein the distance between the first wire and the reference plane sequentially increases and decreases in a uniform pattern when moving in one direction about the circumference of the base roll. 13. A tool roll according to claim 10, wherein the distance between the first wire and the reference plane sequentially increases and decreases in a non-uniform pattern when moving in one direction about the circumference of the b ase roll. 14. A tool roll according to claim 10, wherein the first wire forms a sinusoidal helical pattern about the circumference of the roll. 15. A tool roll according to claim 10, wherein the first wire comprises two opposing side walls, an inner edge facing the base roll and an outer edge facing outward from the base roll, and further wherein at least one of the two opposing side walls comprises a surface texture. 16. A tool roll according to claim 10, wherein the second wire comprises two opposing side walls, an inner edge facing the base roll and an outer edge facing outward from the base roll, and further wherein at least one of the two opposing side walls comprises a surface texture.
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