Provided are a roller assembly, a battery cell manufacturing device, and an adjustment method of a roller, which relates to the field of battery manufacturing technology. The roller assembly includes a holder, a roller, and a first adjusting member. The roller is rotatably mounted on the holder. The first adjusting member is rotatably mounted on the holder, and one end of the roller is rotatably connected to the first adjusting member. A rotation axis of the roller does not coincide with a rotation axis of the first adjusting member. One end of the roller is rotatably mounted on the holder through the first adjusting member. The rotation axis of the first adjusting member does not coincide with the rotation axis of the roller, and therefore, rotation of the first adjusting member is capable of driving a corresponding end of the roller to rotate, thereby adjusting an extension direction of the roller.

A roller (1) is used for guiding and/or width stretching of a running material web (2). The roller (1) has a supporting body (3), on the outside of which receptacles (4) for axially displaceably held battens (5) are provided. These grasp the material web (2). In order to improve the functionality of this roller (1), at least one undercut groove (6) is formed on the supporting body (3) between at least two of the battens (5). This undercut groove (6) can receive at least one functional component (7).

A roller (1) is used for guiding and/or width stretching of a running material web (2). The roller (1) has a supporting body (3), on the outside of which receptacles (4) for axially displaceably held battens (5) are provided. These grasp the material web (2). In order to improve the functionality of this roller (1), at least one undercut groove (6) is formed on the supporting body (3) between at least two of the battens (5). This undercut groove (6) can receive at least one functional component (7).

A segment roller (1) has a roller body (2), which is mounted rotatably about an axis (3). To this end, the roller body (2) has on the outside grooves (9), in which tongues (8) of profiles (7) engage. These profiles (7) grip the material web (5) directly or indirectly. In order to increase the working life and improve the mechanical properties of the profiles (7), the profiles (7) are of shear-resistant configuration and have elastic lips (20). These elastic lips (20) are deformed upon the engagement of the tongue (8) in the groove (9).

A segment roller (1) has a roller body (2), which is mounted rotatably about an axis (3). To this end, the roller body (2) has on the outside grooves (9), in which tongues (8) of profiles (7) engage. These profiles (7) grip the material web (5) directly or indirectly. In order to increase the working life and improve the mechanical properties of the profiles (7), the profiles (7) are of shear-resistant configuration and have elastic lips (20). These elastic lips (20) are deformed upon the engagement of the tongue (8) in the groove (9).

Provided are a roller assembly, a battery cell manufacturing device, and an adjustment method of a roller, which relates to the field of battery manufacturing technology. The roller assembly includes a holder, a roller, and a first adjusting member. The roller is rotatably mounted on the holder. The first adjusting member is rotatably mounted on the holder, and one end of the roller is rotatably connected to the first adjusting member. A rotation axis of the roller does not coincide with a rotation axis of the first adjusting member. One end of the roller is rotatably mounted on the holder through the first adjusting member. The rotation axis of the first adjusting member does not coincide with the rotation axis of the roller, and therefore, rotation of the first adjusting member is capable of driving a corresponding end of the roller to rotate, thereby adjusting an extension direction of the roller.