Robot film cutting device and flexible film cutting method

Abstract

The invention discloses a robot film cutting device. The robot film cutting device comprises a robot, wherein the robot is provided with a torque sensor, the torque sensor is provided with a cutter, and the cutter is provided with a thermocouple and a heating device. According to the robot film cutting device, the torque sensor is arranged on the robot, according to a feedback torque value of thecutter sensed by the torque sensor during film cutting, a deviation value is obtained by subtracting the feedback torque value from a set torque value, and the robot obtains the deviation value and then a feed amount is obtained through PD operation; the robot adjusts the cutter according to the feed amount based on a film cutting path, so that the deviation between the feedback torque value and the set torque value is within a certain range when the cutter cuts a film, and the film cutting depth is ensured to be constant when the cutter cuts the film; and the effect of film cutting is ensuredand a bottle body cannot be damaged. The robot film cutting device is applied to the field of bottle packaging material unpacking.

Description

technical field [0001] The invention belongs to the field of bottle packaging material unpacking, and in particular relates to a robot film cutting device and a flexible film cutting method. Background technique [0002] When the existing unpacking machine cuts plastic mold packaging materials, the film cutting path of the robot is fixed, and its film cutting protection for irregular packaging materials mainly relies on the buffer spring on the film cutting mechanism to realize the offset of the film cutting knife. This method cuts the film. When the boundary of the packaging material protrudes too much, the force on the bottle body will still be large and it is easy to cut the bottle body only relying on the spring buffer; and when the boundary of the packaging material is too concave, the film cutting knife will not be able to Contact with the bottle film or the film cutting force is very small, and the film cutting cannot be achieved. [0003] The patent document with th...

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Problems solved by technology

[0004] The film cutting assembly and the film cutting method disclosed in this reference document still have the above-mentioned defects

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