Device for positioning a roller or for tensioning a belt, drawing device, spinning unit and spinning machine comprising such a device

A device (10) for positioning at least one roller (6) in a drawing device (100) and/or in a spinning unit (200), and/or for tensioning at least one belt (1), in particular a running belt, in a drawing device (100) and/or in a spinning unit (200), wherein the device (10) comprises:

• the at least one roller (6) which is rotatably mounted,
• the at least one belt (1), in particular a running belt,
• at least one tension rod (4), and
• at least one guide device (20) for contacting the belt (1) at at least one contact point (21) in order to guide the belt (1) during operation of the at least one roller (6),
• wherein the tension rod (4) and the roller (6) are designed and arranged in such a way that the belt (1) is arranged for operation in such a way that it runs around at least part of the roller (6) in a contact region (30), and
• wherein the tension rod (4) and the roller (6) are designed and arranged in such a way that the belt (1) is arranged for operation in such a way that it runs around at least part of the tension rod (4),
• wherein the tension rod (4) and the roller (6) are designed and arranged relative to one another in such a way that the belt (1) runs around the tension rod (4) and the roller (6) in a tensioned manner during operation of the at least one roller (6),
• wherein the belt (1) can be guided by the at least one guide device (20) during circulation, and
• wherein the at least one guide device (20) is arranged and designed in such a way that the roller (6), in particular designed as a lower roller, is reversibly accessible for removing the belt (1) and/or threading the belt (1), in particular without changing the relative positions of the roller (6), tension rod (4) and/or belt (1) to one another.