Mandrel structure of circular saw machine for preferably cutting timber in longitudinal direction

Abstract

The present invention discloses a saw shaft structure of optimized longitudinal cutting circular sawing machine, which comprises a saw shaft and a saw shaft base that is used for supporting the saw shaft. The saw shaft is at least sleeved with a sawblade sliding sleeve which can move along the axial direction and rotate along with the saw shaft. The sawblade sliding sleeve is at least fixedly installed with a movable circular saw blade which is movably connected with a circular saw blade shifting fork. The circular saw blade shifting fork is connected with a screw pair. The saw shaft is at least fixedly installed with a fixed circular saw blade and is at least fixedly installed with a saw shaft driving key. The shaft hole of sawblade sliding sleeve is at least internally provided with a driving key groove that is corresponding with the saw shaft driving key. The saw shaft structure can realize the axial sliding adjustment to the circular saw blade conveniently and flexibly. Longitudinally material cutting can be executed according to an optimal cutting plan. The saw shaft structure also has higher material yielding rate and production efficiency, and is widely used in various multi-blade circular sawing machine.

Description

technical field [0001] The invention relates to the technical field of wood processing, in particular to equipment for longitudinally cutting and cutting wood, and in particular to the improvement of the saw shaft structure of a multi-blade circular saw machine. Background technique [0002] Longitudinal cutting and cutting of sawn timber such as wood is a common process operation in wood processing, and multi-blade circular saws are common process equipment for longitudinally cutting wood. This type of multi-blade circular saw machine with longitudinal section function is above the feeding chain plate supported on the machine base, and a pressing mechanism including front and rear feeding rollers is set, and a pressing mechanism is set between the front and rear feeding rollers. A circular saw blade saw shaft is arranged, and a plurality of circular saw blades are housed on the circular saw blade saw shaft. Each circular saw blade is set on the saw shaft at a fixed interva...

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Problems solved by technology

[0003] Although the saw shaft of this circular saw machine with fixed saw blade spacing has the advantages of high production efficiency, easy control of the board width and easy guarantee of a given board size compared with single saw blade sawing equipment, but this kind of saw blade with fixed saw blade spacing The defects in the saw shaft of the circular saw machine are also obvious

First of all, it is impossible to choose the best sawing plan according to the characteristics of raw materials and sawing requirements with a fixed saw blade interval, but can only "copy" the corresponding board width according to the set saw blade interval, which only depends on the preset With a certain saw blade spacing, it is impossible to avoid defects such as knots or splits in the wood during the sawing process. This fixed sawing size is bound to be far from the best sawing plan, and the best sawing plan The characteristics of the given actual sawn timber should be considered, and the optimal sawing order should be determined according to the optimized mathematical method and reasonable collocation. Therefore, this unoptimizable sawing plan means that more sawing waste will be generated, low yield

Second, even if the existing multi-blade circ...

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