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US 6,640,590 B2Granted
Circular knitting machine
AssigneeSIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH
InventorsAndreas Thoman, Pierre Jaeger
Life of this patent
Estimating the term…
Abstract
A circular knitting machine for producing circular knitwear (15) is described, which is slit at one side, spread out with the aid of V-rolls (17) and then taken down and wound up in the spread out state. In accordance with the invention a guide element (44) if fitted at one end (33) of a fabric spreader (25) and extends up to a junction point (43) of the V-rolls (17). The knitwear (15) is guided by means of the guide element (44) in a controlled manner before running on to the V-rolls (17), such that backing-up and warping during its further transport are avoided.
Claims13
A circular knitting machine, comprising:
- means (5a, 7) for producing circular knitwear (15), a fabric spreader (25) with first and second ends (32, 33) arranged below said means (5a, 7), a take-down and/or winding-up device (14) and a spreading out device being arranged between said fabric spreader (25) and said device (14) and including V-rolls (17) connected to one another at a junction point (43) in V shape and a cutting device (21) associated with said V-rolls, such that a tubular section (15a) of said circular knitwear (15) is laid flat by said fabric spreader (25), is slit by said cutting device (21) along a longitudinal fold formed by said first end (32) of said fabric spreader (26), is spread out by means of said V-rolls (17) along a second longitudinal fold formed by said second end (33) of said fabric spreader (25) and is taken down in a spread out state by said device (14), and a guide element (44) extending from said second end (33) to said junction point (43) for transferring a region of said knitwear (15) including said second longitudinal fold to said V-rolls (17).
A circular knitting machine, comprising:
- means (5a, 7) for producing circular knitwear (15), a fabric spreader (25) with first and second ends (32, 33) arranged below said means (5a, 7), a take-down and/or winding-up device (14), a spreading out device being arranged between said fabric spreader (25) and said device (14) and including V-rolls (17) connected to one another at a junction point (43) in V shape and a cutting device (21) associated with said V-rolls, such that a tubular section (15a) of said circular knitwear (15) is laid flat by said fabric spreader (25), is slit by said cutting device (21) along a longitudinal fold formed by said first end (32) of said fabric spreader (26), is spread out by means of said V-rolls (17) along a second longitudal fold formed by said second end (33) of said fabric spreader (25) and is taken down in a spread out state by said device (14), and a guide element (44) extending from said second end (33) to said junction point (43) for transferring a region of said knitwear (15) including said second longitudinal fold to said V-rolls (17), wherein said guide element (44) is fixed on said second end (33) of said fabric spreader (25) and is arranged substantially parallel to a machine axis (8) and at a radial distance from said axis (8) which corresponds to a radial distance of said second end (33) from said machine axis (8).
A circular knitting machine, comprising:
- means (5a, 7) for producing circular knitwear (15), a fabric spreader (25) with first and second ends (32, 33) arranged below said means (5a, 7), a take-down and/or winding-up device (14), a spreading out device being arranged between said fabric spreader (25) and said device (14) and including V-rolls (17) connected to one another at a junction point (43) in V shape and a cutting device (21) associated with said V-rolls, such that a tubular section (15a) of said circular knitwear (15) is laid flat by said fabric spreader (25), is slit by said cutting device (21) along a longitudinal fold formed by said first end (32) of said fabric spreader (26), is spread out by means of said V-rolls (17) along a second longitudal fold formed by said second end (33) of said fabric spreader (25) and is taken down in a spread out state by said device (14), and a guide element (44) extending from said second end (33) to said junction point (43) for transferring a region of said knitwear (15) including said second longitudinal fold to said V-rolls (17), wherein said guide element (44) comprises a rod and said rod is provided with a fabric guide surface of oval shape, and wherein said guide element (44) provides a transition without a step and runs approximately at a height of said junction point (43) along a radially incurved acr (44a) up to the junction point (43).
A circular knitting machine, comprising:
- means (5a, 7) for producing circular knitwear (15), a fabric spreader (25) with first and second ends (32, 33) arranged below said means (5a, 7), a take-down and/or winding-up device (14), a spreading out device being arranged between said fabric spreader (25) and said device (14) and including V-rolls (17) connected to one another at a junction point (43) in V shape and a cutting device (21) associated with said V-rolls, such that a tubular section (15a) of said circular knitwear (15) is laid flat by said fabric spreader (25), is slit by said cutting device (21) along a longitudinal fold formed by said first end (32) of said fabric spreader (26), is spread out by means of said V-rolls (17) along a second longitudal fold formed by said second end (33) of said fabric spreader (25) and is taken down in a spread out state by said device (14), and a guide element (44) extending from said second end (33) to said junction point (43) for transferring a region of said knitwear (15) including said second longitudinal fold to said V-rolls (17), wherein said first end (32) of said fabric spreader (25) has a recess(41) into which said cutting device (21) projects.
Dependencies are inferred from the claim text.