Quick tensioning mechanism for woodworking band saw machine and woodworking band saw machine

Abstract

The invention discloses a quick tensioning mechanism for a woodworking band saw machine and the woodworking band saw machine. The quick tensioning mechanism comprises a tensioning frame, a tensioning assembly, a cam assembly, a guiding element and an upper wheel shaft assembly, and the tensioning frame is fixed to a machine body of the woodworking band saw machine; the tensioning assembly penetrates the tensioning frame and can perform lifting movement relative to the tensioning frame; the cam assembly is connected with the tensioning assembly; when the cam assembly is driven, the tensioning assembly can be lifted and released; the guiding element is connected with the tensioning assembly, so that the guiding element and the tensioning assembly can synchronously move; the guiding element is connected with the tensioning frame at the same time, so that the guiding element and the tensioning frame can perform lifting movement; the upper wheel shaft assembly is connected with the guiding element, so that the upper wheel shaft assembly can swing around the axis of the guiding element; and the upper wheel shaft assembly is connected with an upper saw wheel of the woodworking band saw machine, so that when the upper wheel shaft assembly is driven, the upper saw wheel can be driven to synchronously move. The quick tensioning mechanism has the beneficial effects that the quick tensioning mechanism is applicable to operation of the small band saw machine, the space of the band saw machine is saved, split swinging of the quick tensioning mechanism can be achieved, and the swinging precision is improved.

Description

technical field [0001] The invention relates to the technical field of woodworking machinery, in particular to a fast tensioning mechanism for a woodworking band saw machine and the woodworking band saw machine. Background technique [0002] A woodworking band saw machine is a saw machine that uses a ring-shaped endless band saw blade as a saw tool, and makes a one-way continuous linear motion around two saw wheels to saw wood. The woodworking band saw machine is mainly composed of upper saw wheel, lower saw wheel, driving device, worktable, saw blade, tensioning mechanism and body. Usually, the lower saw wheel of the vertical saw is the driving wheel, and the upper saw wheel is the driven wheel. The saw blade is installed on the outer circumference of the upper saw wheel and the lower saw wheel. saw wheel. The tensioning of the saw blade is realized by a tensioning mechanism connected with the upper saw wheel. [0003] In the woodworking band saw, the tensioning mechanis...

AI Technical Summary

Problems solved by technology

Simultaneously, the space of the swinging part of the above-mentioned quick tensioning mechanism is the gap between the joint bolt and the double-ended screw rod. Since the double-ended screw rod is connected with the sliding rod, that is, the horizontal swinging part is an integral swinging mode except for the joint bolt, and the swinging part is smaller. Many, the swing accuracy is not high

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