The present disclosure relates to a process and a device for winding a strand of hollow fiber membranes.

A method and a system of winding a continuous elongate element onto cylindrical elements. The continuous elongate element is wound from a feeder onto a first cylindrical element. The first cylindrical element rotates with the same rotational speed as a second cylindrical element provided on the other side of a central rotatable member. During the rotation, the feeder is displaced from being aligned with the first cylindrical element to being aligned with the second cylindrical element, wherein the displacement causes the continuous elongate element to come into engagement with an engagement portion of the central rotatable member, preventing the already wound portion of the continuous elongate element from being unwound from the first cylindrical element. The continuous elongate element from the feeder is continued to be wound onto the second cylindrical element by continuing to rotate the second cylindrical element.

A method and a system of winding a continuous elongate element onto cylindrical elements. The continuous elongate element is wound from a feeder onto a first cylindrical element. The first cylindrical element rotates with the same rotational speed as a second cylindrical element provided on the other side of a central rotatable member. During the rotation, the feeder is displaced from being aligned with the first cylindrical element to being aligned with the second cylindrical element, wherein the displacement causes the continuous elongate element to come into engagement with an engagement portion of the central rotatable member, preventing the already wound portion of the continuous elongate element from being unwound from the first cylindrical element. The continuous elongate element from the feeder is continued to be wound onto the second cylindrical element by continuing to rotate the second cylindrical element.

A reel changing device is described for reeling fiber bundles from a fiber strand exiting a spinning device, including at least a first reel carrier and a second reel carrier on each of which a reel suited for winding up the fiber strand is arranged and which are movably received and guided in at least a first reel guide and a second reel guide so that the reels are adapted to be positioned one after another in an exit direction of the fiber strand so as to enable, in the case of a reel change, the fiber strand to be directly transferred from the first reel arranged on the first reel carrier to the second reel arranged on the second reel carrier. Moreover, a reel changing method in such reel changing device is described.

A reel changing device is described for reeling fiber bundles from a fiber strand exiting a spinning device, including at least a first reel carrier and a second reel carrier on each of which a reel suited for winding up the fiber strand is arranged and which are movably received and guided in at least a first reel guide and a second reel guide so that the reels are adapted to be positioned one after another in an exit direction of the fiber strand so as to enable, in the case of a reel change, the fiber strand to be directly transferred from the first reel arranged on the first reel carrier to the second reel arranged on the second reel carrier. Moreover, a reel changing method in such reel changing device is described.

A reel changing device is described for reeling fiber bundles from a fiber strand exiting a spinning device, including at least a first reel carrier and a second reel carrier on each of which a reel suited for winding up the fiber strand is arranged and which are movably received and guided in at least a first reel guide and a second reel guide so that the reels are adapted to be positioned one after another in an exit direction of the fiber strand so as to enable, in the case of a reel change, the fiber strand to be directly transferred from the first reel arranged on the first reel carrier to the second reel arranged on the second reel carrier. Moreover, a reel changing method in such reel changing device is described.

A bobbin has a winding core and multiple partitioning walls, so that multiple winding areas are formed in an axial direction. A groove is formed in each of the partitioning walls, so that a wire rod strides over the partitioning wall bypassing through the groove when a winding process for one of the winding areas is finished and a winding process for a neighboring winding area will be started. The groove has a first and a second guide wall surfaces, which are opposed to each other in a circumferential direction. Each of the first and the second guide wall surfaces is inclined in the axial direction such that each of the first and the second guide wall surfaces comes closer to a circumferential winding-end side in the axial direction to a stride-end side.

A bobbin has a winding core and multiple partitioning walls, so that multiple winding areas are formed in an axial direction. A groove is formed in each of the partitioning walls, so that a wire rod strides over the partitioning wall bypassing through the groove when a winding process for one of the winding areas is finished and a winding process for a neighboring winding area will be started. The groove has a first and a second guide wall surfaces, which are opposed to each other in a circumferential direction. Each of the first and the second guide wall surfaces is inclined in the axial direction such that each of the first and the second guide wall surfaces comes closer to a circumferential winding-end side in the axial direction to a stride-end side.

A method and a system of winding a continuous elongate element onto cylindrical elements. The continuous elongate element is wound from a feeder onto a first cylindrical element. The first cylindrical element rotates with the same rotational speed as a second cylindrical element provided on the other side of a central rotatable member. During the rotation, the feeder is displaced from being aligned with the first cylindrical element to being aligned with the second cylindrical element, wherein the displacement causes the continuous elongate element to come into engagement with an engagement portion of the central rotatable member, preventing the already wound portion of the continuous elongate element from being unwound from the first cylindrical element. The continuous elongate element from the feeder is continued to be wound onto the second cylindrical element by continuing to rotate the second cylindrical element.

A method and a system of winding a continuous elongate element onto cylindrical elements. The continuous elongate element is wound from a feeder onto a first cylindrical element. The first cylindrical element rotates with the same rotational speed as a second cylindrical element provided on the other side of a central rotatable member. During the rotation, the feeder is displaced from being aligned with the first cylindrical element to being aligned with the second cylindrical element, wherein the displacement causes the continuous elongate element to come into engagement with an engagement portion of the central rotatable member, preventing the already wound portion of the continuous elongate element from being unwound from the first cylindrical element. The continuous elongate element from the feeder is continued to be wound onto the second cylindrical element by continuing to rotate the second cylindrical element.