Tensioning device and ribbon strapping machine

Abstract

The utility model relates to a tensioning device and a ribbon strapping machine, the tensioning device comprises a first clamping wheel and a second clamping wheel which rotate in opposite directions, the axis position of the first clamping wheel is fixed, the tensioning device further comprises a sliding seat and an adjusting screw, the sliding seat is connected to a sliding rail in a sliding mode, the second clamping wheel is installed on the sliding seat in a rotating mode, and the adjusting screw is arranged on the sliding seat. The wheel center distance between the first clamping wheel and the second clamping wheel is adjusted through sliding of the sliding base. A screw hole is formed in the sliding seat in the sliding direction of the sliding seat, the adjusting screw is in threaded connection fit with the screw hole, the stopping part is fixedly arranged on the side, facing the sliding seat, of the head of the adjusting screw and used for stopping the head of the adjusting screw, and the elastic piece acts on the sliding seat. And the elastic piece is configured to store energy when the sliding seat slides away from the first clamping wheel. The device is very stable and reliable, and is simple to operate.

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