Bobbin paper mandrel tensioning device for cigarette making and tipping machine combination

Abstract

The invention discloses a bobbin paper mandrel tensioning device for a cigarette making and tipping machine combination. The bobbin paper mandrel tensioning device comprises a base. A mandrel is arranged in the center of the base in a sliding manner. A sliding disc is fixedly connected with the right end of the mandrel. The sliding disc and the mandrel are coaxial. Multiple inclined sliding grooves are formed in the periphery edge of the sliding disc. One sliding tensioning block is connected into each inclined sliding groove in a sliding manner. The inner end face of each sliding tensioning block is an inclination face in sliding fit with the bottom wall face of the corresponding inclined sliding groove. The outer end face of each sliding tensioning block is an arc face. The outer end faces of the multiple sliding tensioning blocks form an outer circle in an enclosure manner. A drive mechanism drives the mandrel to slide along the base left and right, thus the sliding disc is driven to move left and right, then the multiple sliding tensioning blocks embedded into the multiple inclined sliding grooves are driven to move in the direction close to or away from the circle center of the sliding disc, the size of the diameter of the whole outer circle is adjusted, and therefore bobbin paper rings sleeved outside the multiple sliding tensioning blocks are tensioned. The bobbin paper mandrel tensioning device has the beneficial effect of being capable of achieving automatic tensioning of the bobbin paper rings safely and reliably.

Description

technical field [0001] The invention relates to the technical field of cigarette production equipment, in particular to a winding mandrel tensioning device of a coiling unit. Background technique [0002] In the cigarette production equipment, the existing winding mandrel tensioning device arranged on the coiling unit belongs to the toggle crank linkage mechanism. The toggle crank linkage mechanism has the following problems: the tension points inside it are fixed and cannot be adjusted; there are many connection points, six points are tensioned, and each point has as many as five points of connection, which is relatively cumbersome. They are all connected by straight pins and piece connecting rods, which are easy to wear and tear. The tension of the six tension points is realized by six small torsion springs, and the torsion springs are thin and easy to break, which leads to the failure of the paper coil to be tensioned. The operation of the coil paper shakes, and the oper...

AI Technical Summary

Problems solved by technology

The toggle crank linkage mechanism has the following problems: the tension points inside it are fixed and cannot be adjusted; there are many connection points, six points are tensioned, and each point has as many as five points of connection, which is relatively cumbersome. They are all connected by straight pins and piece connecting rods, which are easy to wear and tear. The tension of the six tension points is realized by six small torsion springs, and the torsion springs are thin and easy to break, which leads to the failure of the paper coil to be tensioned. The operation of the coil paper shakes, and the operation of the equipment is unstable; there are many links in the tensioning device, and the combination accuracy is poor. It is difficult for the six tensioning points to form a circular surface, and each point is not on the center of a circle.

The above problems lead to insufficient tightness of the coil paper, poor operation stability, unstable operation of the equipment, frequent maintenance, increased maintenance workload, and reduced equipment efficiency.

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