Veneer longitudinal glue splicing process and veneer longitudinal glue splicing machine

Abstract

The invention discloses a veneer longitudinal glue splicing process and a veneer longitudinal glue splicing machine. The veneer longitudinal glue splicing machine comprises a main frame, a tooth cutting device, a tooth cutting conveying device, a tooth joint conveying device, a plate discharging conveying device, a clamping plate moving device, a gluing device, a tooth joint device, a fixed-lengthcutting device, an optoelectronic switch and a controller. The horizontal spacing distance between the tooth joint device and the tooth cutting device is limited to range from 45 cm to 90 cm, the displacement distance of a veneer after tooth beating and before splicing is reduced, errors are reduced, and the tooth joint precision is improved; a good tooth joint effect can be achieved for a wood plate with the tooth length of 3 cm after tooth combing, consumables of the tooth joint end of the veneer are reduced, and the utilization rate of the veneer is increased; the occupied space of complete equipment is reduced, the weight of the complete equipment is reduced, and the consumable cost and transportation cost of equipment products are reduced; and the application range is wide, and various veneers with different lengths, veneers with different thicknesses and veneers adhered with impurities can be longitudinally spliced by a single glue splicing machine.

Description

technical field [0001] The invention belongs to wood processing machinery, in particular to the technical field of veneer splicing in wood production, and in particular to a tooth joint device for longitudinal glue splicing of thick veneers. Background technique [0002] In the past two years, several tooth joint devices have appeared for longitudinal / vertical splicing equipment of medium plates. For example, the technical solutions disclosed in patent documents such as CN110480767A and CN110466012A provide the market with numerous technical solutions for veneer longitudinal gluing. However, the workflow disclosed in CN110480767A and CN110466012A is that after the tail of the veneer is punched, the teeth are then spliced. Due to the limitation of the veneer length specifications currently on the market, it is generally between 125 centimeters and 129 centimeters, and 127 centimeters is the most suitable. Commonly, the distance between the tooth cutting device and the tooth ...

AI Technical Summary

Problems solved by technology

However, the workflow disclosed in CN110480767A and CN110466012A is that after the tail of the veneer is punched, the teeth are then spliced. Due to the limitation of the veneer length specifications currently on the market, it is generally between 125 centimeters and 129 centimeters, and 127 centimeters is the most suitable. Commonly, the distance between the tooth cutting device and the tooth connection device is set to be more than 125 cm, which results in a long horizontal length of the longitudinal gluing machine, and the moving distance of the veneer after the tail is punched and before the tooth connection is too long. The displacement error in the process also increases correspondingly, which reduces the precision of the tooth connection. When the conveying roller is used as the transmission component, the displacement error of the veneer with different thickness or the state of the veneer with impurities is particularly obvious. At present, the longitudinal gluing machine The tooth length of the tooth cutting knife is generally about 3.8 cm, and the tooth depth is less than 3.8 cm, which will affect the quality of the tooth connection and increase the consumables and floor space accordingly, increasing the cost of consumables, transportation costs, and floor space for the product; and a single glue The machine can only vertically splice veneers of a single specific length specification, and the scope of application is small

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