Guidance device for moving chain

Abstract

A conveying chain guide, in which the stick slip phenomenon of a conveying chain, which meshes with a driving sprocket, and a seasickness phenomenon are removed whereby stable conveying of articles can be smoothly realized and the driving force and vibration noise of a conveying chain can be remarkably reduced. When continuous three rollers C1, C2, C3 in the conveying chain C is to be meshed with the sprocket while gradually descending from the linear rail R for supporting the conveying surface toward the driving sprocket S, in such an arrangement traveling state that always corresponds to the linear rail R for supporting the conveying surface, a transfer position X1 and a meshing position X2, the guide track T is defined along an movement passage of the roller C2 in the transfer position X1.

Description

technical field [0001] The present invention relates to a guide device for a conveyor chain for eliminating speed variations of a conveyor chain which engages with a driving sprocket and moves polygonally on a conveyor belt for conveying articles. Background technique [0002] In the prior art, there is such a pulsation preventing device for a sprocket drive chain, which is equipped with a deflection guide member having a deflection arc surface, and the deflection arc surface is suspended on the side of the drive sprocket for rotation. abutting against the rollers of the roller chain and biasing the chain to suspend and guide rotation on the aforementioned sprockets, the chain length L between the rollers of the aforementioned roller chain and the respective points of initial contact of the aforementioned deflection guide members and drive sprocket teeth and The relationship between the pitch P of the chain is L=(n+0.5)×P, and the so-called pulsation, which is uneven rotatio...

AI Technical Summary

Problems solved by technology

[0005] But the pulsation preventing device of existing sprocket drive chain is designed so that the center of the roller pivotally connected on the roller chain enters the drive sprocket along the tangent of the meshing pitch circle. Polygonal motion at the meshing position with the drive sprocket causing a change in the speed of the roller chain

[0006] In addition, due to the speed change of the roller chain, there are the following problems: the so-called tenon and groove phenomenon that causes inversion and roll-off on the conveyed goods on the conveyor belt; the so-called seasickness caused by the back and forth movement of the assembled goods on the assembly line Phenomena lead to defective products; roller chain tension changes require excessive driving power to increase the size of the chain; increased vibration and noise worsen the handling environment, etc.

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