Veneer longitudinal glue jointer

Abstract

The invention discloses a veneer longitudinal glue jointer. The veneer longitudinal glue jointer comprises a main frame, a tooth cutting device, a tooth cutting and conveying device, a tooth connecting and conveying device, a veneer discharging and conveying device, a veneer clamping and moving device, a gluing device and a tooth connecting device; through arrangement of four pressing cooling pipes and four support cooling pipes, veneer tooth connecting end parts displaced in the horizontal direction are limited, and are displaced in the same horizontal plane to realize smooth joints of veneertooth connecting parts with different thicknesses; through small errors of a lead screw and a conveying roller of the plate clamping and moving device in the conveying process, veneers smaller than 1mm can finish smooth tooth connection; as the pressing cooling pipes and the support cooling pipes can be rotated, the pressing cooling pipes and the support cooling pipes can be rotated along with translation of the veneer, the resistance in the middle plate tooth connecting process is reduced, the extrusion feeding of the veneer with different thicknesses can be realized, the total engagement of tooth connecting positions is realized, and the tooth connecting precision is improved; and the extrusion feeding force applied to the veneer can be lower to save the energy consumption.

Description

technical field [0001] The invention belongs to the technical field of veneer splicing in wood production, and in particular relates to a tooth joint device for longitudinal glue splicing of thick veneers. Background technique [0002] Veneer is a thin wooden material with uniform thickness produced by rotary cutting, planing or sawing, generally less than 6mm, and is mainly used for the production of plywood and other glued laminated timber. Generally, high-quality veneers are used as panels, and low-grade veneers are used as backplanes, core boards, and long and medium boards. The veneer can be divided into thick veneer (thickness is generally 2.0~6mm), thin veneer / thin wood (thickness is generally 0.2~2.0mm), thin wood (thickness is 0.2~0.5mm). At present, due to the limitation of wood raw materials, it is already difficult to produce vertically integrated long veneers that meet the specifications of plywood. It is necessary to splice the veneers longitudinally with glue...

AI Technical Summary

Problems solved by technology

However, according to feedback from customers in the market, when splicing veneers with a thickness of 1.6~2.0mm, gaps in the tooth joints are prone to occur because the two plates cannot be fully displaced and fed; the splicing device is 3.6~6.0mm For veneers with a thickness of mm, the interface of the tooth joint is likely to be uneven, and the tooth tips protrude from the plane of the plate. This is because there is an error in the travel of the transmission device. The success rate of 1.6mm veneer is low; part of the hot melt glue sticks to the clamping device and the board delivery device

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