Spool material retractable feeder

Abstract

The invention discloses a spool material retractable feeder which comprises an electric control system, a bracket, a drive shaft system and a stretch shaft system, wherein the drive shaft system and the stretch shaft system are installed on the bracket, the drive shaft system comprises a drive shaft, the upper side of the bracket is connected with a door frame shaped support arm through a hinge, an opening is arranged at the front end of the support arm, a closed whiffletree is arranged at the back end of the support arm, the drive shaft system and the stretch shaft system are respectively installed on two door frames of the support arm, a lifting mechanism is articulated to the closed whiffletree of the support arm and the bottom of a stand, and the distance between the stretch shaft system and the hinge is smaller than the distance between the lifting mechanism and the hinge. By adopting a principle that the support arm applies a labor saving lever, a spool with larger weight can be lifted by using less action force.

Description

technical field [0001] The invention relates to welding wire production equipment, in particular to an I-shaped wheel retracting and unwinding machine. Background technique [0002] With the rapid development of the welding wire industry, welding wire manufacturers are paying more and more attention to reducing the auxiliary time of equipment operation to improve production efficiency. Reducing the time and frequency required to replace the I-shaped wheel is one of the important means. The I-shaped wheel is getting bigger and bigger, and some welding wire manufacturers have used 1.5-2 tons of I-shaped wheel for wire take-up and pay-off operations. At present, the lifting of the I-shaped wheel generally adopts the following method: a groove is made at the bottom of the retracting and unwinding machine, and an inclined surface is provided in the groove, and the cylinder acts to lift the supporting plate with the I-shaped wheel on the inclined surface, thereby supporting the I-...

AI Technical Summary

Problems solved by technology

[0004] However, during the operation of the unwinding machine, especially during the continuous unwinding process of the pay-off machine, the expansion effect of the wire extrusion on the I-shaped wheel gradually weakens, and the temperature of the I-shaped wheel is also due to the reduction of the wire, Thinning and continuously lowering, the height of the I-shaped wheel is bound to be smaller than when the wheel was just installed, so the I-shaped wheel will continue to shrink during the gradual unwinding process. The depth inside the top of the shafting is also continuously decreasing. When this depth decreases to a certain value, the two tops will no longer be able to withstand the I-shaped wheel, and an accident of the I-shaped wheel and flywheel will occur.

However, the above-mentioned first wedge-shaped locking block locks the jacking shaft in both directions. After locking, the jacking shaft cannot move in both directions, and the simple wedge-shaped locking method is also very difficult during the continuous operation of the machine. It is easy to be shaken by the vibration of the machine itself. The second double-axis cylinder backstop method can only prevent backlash for the jacking shaft system, that is, one-way locking

And above-mentioned two kinds of structures all can't solve above-mentioned problem that top is tight and unreliable

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