Knotter hook constant force control device

Abstract

The invention relates to a hook junction constant force control device for a knotter. The control device is mainly formed by combining and connecting a composite fluted disc, a rocker slider mechanism and a double-slider mechanism in series. The rocker slider mechanism is composed of a rocker, a rocker connecting rod and a slider. The double-slider mechanism is composed of a slider connecting rod, a nut slider, a mobile screw rod and a fixed slide bar. The surface of the periphery of the composite fluted disc is made into a disc-shaped cam with a required outline. When the composite fluted disc is driven by a knotter spindle to rotate, the rocker swings back and forth regularly. The rocker slider mechanism and the double-slider mechanism drive the nut slider to reciprocate axially along the fixed slide bar, and the axial displacement of the nut slider allows the pre-tightening force of an adjustment compressed spring to keep unchanged. In this way, a piece of constant force is exerted on a hook clamp finger by a hook clamp press plate, which is beneficial for taking out a rope head through the hook clamp finger on the knotter. The hook junction constant force control device is compact in structure, convenient to machine, low in manufacturing cost and capable of increasing the knotting rate of the knotter and improving use convenience.

Description

technical field [0001] The invention relates to a hook constant force control mechanism of an automatic knotting device after baling crop straws or pasture grasses, and relates to the technical field of straw harvesting and bundling. Background technique [0002] The knotter is the core component of the square bale straw picking and bundling machine. It can tie the two strands of rope into knots to bind straw and other crop materials, preventing the compressed bale from loosening, which is convenient for transportation and storage, and is also beneficial to straw and other biomass. energy utilization. At present, due to the limited design and manufacturing level of domestic manufacturers of square bale straw picking and bundling machines, they rely on expensive foreign knotters to produce bundling machines. [0003] China authorized patent: humanoid two-finger knotter ZL201110001685.8 discloses an automatic knotting device for crop straw or forage square bales, which is ins...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problem that the linearly increasing hook reaction force in existing knotters is not conducive to knot formation, the present invention proposes a knotting constant force control mechanism for knotters, which overcomes the need for repeated adjustments and adjustments when the original knotter is in use. The defect of the compression spring improves the knot forming rate and the convenience of use

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