Guide roller device

Abstract

The invention discloses a guide roller device. The guide roller device comprises a supporting frame, a first roller, a power component, a second roller component and a connecting plate, wherein the first roller is arranged on the supporting frame in a rotating manner; the power component is used for driving the first roller to rotate; the second roller component is arranged on the supporting frame and comprises a second roller which can rotate opposite to the supporting frame; the central axis of the first roller is parallel to the central axis of the second roller; a gap is formed between the first roller and the second roller; an output shaft of the power component is connected with the first roller through an expansion sleeve; a body of the power component is fixedly connected with one end of the connecting plate; the other end of the connecting plate is movably connected with the supporting frame. The output shaft of the power component is connected with the first roller by using the expansion sleeve, so keyless connection can be realized to reduce the damage of the expansion sleeve, and the output shaft of the power component and the first roller are kept in a concentric state.

Description

technical field [0001] The invention relates to a guide roller device. Background technique [0002] The existing printing machine is generally provided with a guide roller device, and the existing guide roller device generally includes a support frame, a first roller and a second roller installed on the support frame, and a motor, and the body of the motor is fixed on the On the motor seat, the motor seat is fixed on the support frame by screws, and the output shaft of the motor is connected with the first roller through a coupling. The gap between the first roller and the second roller passes through, and the print is output. Due to the key connection between the motor and the coupling, if the processing accuracy of the key strip is not enough, it is difficult to form a tight connection with the keyway. In the case of long-term use, it is easy to cause damage to the coupling, so that the output shaft of the motor and the second A roller is difficult to maintain concentri...

AI Technical Summary

Problems solved by technology

Due to the key connection between the motor and the coupling, if the processing accuracy of the key strip is not enough, it is difficult to form a tight connection with the keyway. In the case of long-term use, it is easy to cause damage to the coupling, so that the output shaft of the motor and the second A roller is difficult to maintain concentricity

Moreover, in addition to the above reasons, in the actual assembly process, due to problems such as machining accuracy, there will be errors after the motor base and the support frame are installed, and it will also cause the problem that the output shaft of the motor and the first roller are difficult to ensure concentricity

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