Braid straightening machine. Drawing, description

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Braid straightening machine. home workshop

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Usually a bent or blunted scythe is ruled with a hammer on an anvil: one strikes the blade evenly, the other gradually advances it, while the actions of both must be accurate and coordinated.

A simple "machine" - all, with the exception of the hammer and anvil, made of wooden parts - simplifies and speeds up this work.

On a solid frame, a flywheel is installed, which is driven into rotation by a well-type gate. The edge of the wheel is equipped with teeth forged in sheet metal.

Braid dressing machine
Straightening machine: 1 - anvil, 2 - hammer, 3 - hammer axis, 4 - frame, 5 - spring, 6 - wheel tooth, 7 - wheel, 8 - collar

The hammer is attached to the vertical post of the frame through the middle of the handle in such a way that its end, interacting with the teeth of the wheel, causes the striker to strike the anvil as it rotates.

A "spring" is fixed under the upper beam of the frame - a plank of elastic wood, connected by its free end to the hammer handle (it serves to increase the impact force).

The partner can only rotate the gate of the wheel, the hammer will hit more often, and the dressing work will go faster.

Further improvement of the mechanism is also possible: installing a drive motor, replacing a wooden spring with a metal one, and to reduce friction, a roller or bearing can be placed on the hammer handle.

The dimensions of the structural elements depend on the size of the hammer, the force and frequency of impacts.

Author: M.Shklovsky

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