Constant-tension adhesive tape rewinder allowing tape roll discharging position to be controlled

Abstract

The invention discloses a constant-tension adhesive tape rewinder allowing the tape roll discharging position to be controlled. An unwinding inflatable shaft around which adhesive tape is wound and a winding inflatable shaft are arranged on a machine frame, and a roll conveying shaft is arranged between the unwinding inflatable shaft and the winding inflatable shaft. A dual-closed-loop roll discharging position control system comprising an upper infrared photoelectric sensor, a lower infrared photoelectric sensor, a PLC, a stepping motor, and the like is arranged at the roll discharging position. The adhesive tape enters a flattening wheel. A winding length control system comprising an encoder, a meter counter, an electromagnetic relay, an adjustable-speed motor and a frequency converter is arranged at the position of a roll conveying shaft. A semi-closed-loop tension control system comprising an infrared rotary sensor, a taper tension controller, a magnetic powder clutch and the like is arranged at the roll receiving end, and a manual deviation rectifying device used for laser calibration and positioning and a pressing assembly are also arranged. By the adoption of the constant-tension adhesive tape rewinder allowing the tape roll discharging position to be controlled, excessive stress and serious deformation, caused by major tension fluctuation, of the adhesive tap are completely avoided, the initial precision and the operating precision of the adhesive tape are high, and the quality of adhesive tape products is greatly improved. Meanwhile, the length of an adhesive tape roll can be controlled, winding efficiency, unwinding efficiency, replacing efficiency and installation efficiency are high, and using and operation are convenient and fast. The adhesive tape rewinder can be used for producing a big polytetrafluoroethylene adhesive tape roll in the required size.

Description

(1) Technical field [0001] The invention relates to a rewinding device for a cylindrical tape product, which is to make the glue-coated cylindrical tape roll into a required size or required size tape roll through the rewinding device. Especially rewinders for PTFE film tubular tape products. It belongs to the conveying category of thin materials (B65H). (2) Technical background [0002] At present, the rewinding machine has been widely used, and the relevant requirements for the rewinding machine are also different for different materials and different processes of film tubular tapes. The production of existing polytetrafluoroethylene film cylindrical adhesive tape, at first is to cover the polytetrafluoroethylene raw material film with the silicone pressure film after its surface treatment through the film processing equipment by what can be called a glue-coating roll mold machine or a rewinding machine. Sensitive adhesives to obtain Teflon film tubular tapes. Then, thr...

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Problems solved by technology

[0004] The constant tension adhesive tape rewinder with controllable unwinding position provided by the present invention is to solve the serious deformation, deviation, poor quality, low pass rate and lo

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