RU2098267C1 - Production line for manufacture of squared-timber panels - Google Patents

Abstract

FIELD: woodworking, in particular, production of squared timbers and squared-timber panels. SUBSTANCE: arrangement uses four-sided plano-milling machine 1, end-face working unit 2, drilling-groove cutting-sawing unit 4, table 5 for assembly of squared-timber panels. EFFECT: improved design. 1 dwg

Description

 The invention relates to the field of woodworking industries, in particular to the production of timber and timber panels.

A known line for processing logs containing a conveyor for supplying oriented logs, milling and sawing device, including milling units and saw units with milling cutters [1]
A disadvantage of the known line is the inability to obtain a bar of various lengths and configurations and panels from it, low quality of output products and a high percentage of waste feedstock.

The closest analogue is an automatic line for the production of timber products, containing serially connected loader, conveyor, four-sided longitudinal milling machine, milling and sawing devices, longitudinal feed mechanism and control unit [2]
The disadvantage of this line is the inability to obtain a bar of various lengths and configurations and panels from it, and a high percentage of waste feedstock.

 The aim of the invention is the creation of a reliable line for the production of parts from timber for the assembly of panels, improving the quality of output products, increasing labor productivity and reducing the percentage of wood waste.

 The drawing shows a block diagram of a technological line for the production of timber panels.

 The technological line includes a four-sided longitudinal milling machine 1 for profiling a beam, an end processing unit (BOT) 2, a drilling-grooving and sawing unit with CNC 4, a table 5 for assembling panels from a bar.

 The device operates as follows.

 A beam of 20% humidity is manually fed to a four-sided longitudinally milling machine 1, where the beam is profiled according to a given configuration. Then the beam is installed on the BOT live roll, from where it is manually guided alternately along the guide to the machining zone, first one, then another spindle with a block mill 2.

 When moving the beam along the guide of the rolling table to the zone, the processing of one of the spindles of the beam reaches the stop. After that, the operator gives a command to fix the beam with pneumatic clamps and then turns on the spindle electric drive and the carriage electric drive. Moving along the column from the initial upper position, the carriage with the spindle processes the end face of the beam with a mill. The stroke of the carriage is limited by a limit switch that turns on the reverse of the carriage electric motor. Upward movement is limited by another limit switch, which disconnects both electric drives. Thus, a groove is formed at one end of the beam, and a spike at the other, for this the spindles are equipped with appropriate milling cutters.

 Next, the beam is manually moved to the end splice unit 3, which is equipped with a pneumatic drive for gluing the machined ends of the first beam with the subsequent one. Before joining the bars, glue is applied to the spike of one and the groove of the other. Then the drive is turned on, which creates pressure in the gluing area of the ends, and the beam is spliced, with the first beam being fixed with a pneumatic clamp in a certain position, and the second beam fixed with a pneumatic clamp is fed to the first beam with a pneumatic actuator, pressed against the first beam and fixed in this position until final bonding. Thus, a “infinite length” beam is fed into the processing zone of block 4, and according to a given program, the formation of transverse grooves, drilling and sawing of the beam into size occurs.

 The principle of operation of the spindles of block 4 with CNC is similar to the principle of operation of the BOT spindle. The difference lies in the fact that the machine control unit sends the command to the spindle drive according to the specified program. The linear movement of the beam in the processing zone of this block is carried out by a pulling mechanism, the operation of which is also set by the control unit.

 The beam, milled and sawn to the size, is pushed out by a pulling mechanism from the processing zone of block 4. Then, the beam is manually placed on the table for assembling the panels from the beam along the guide lines, on which the bars are assembled in order by stringing the bars on metal rods through drilled holes, fixing plates are laid between the bars in a specific order, the nuts are screwed on and tightened.

 Thus, the production line allows us to solve the problem of processing the beam according to the specified parameters and assembling the panels from the beam, while processing and gluing the ends of the beam reduces the amount of waste, eliminates the problem of rational cutting of the beam and simplifies the automation process of the CNC machine, which leads to increased reliability work and increase productivity.

Claims (1)

 A technological line for the production of timber panels, containing a series-connected conveyor, a four-sided longitudinal milling machine, as well as milling and sawing devices and a broaching mechanism for longitudinal feeding, characterized in that it also has a table for assembling panels of timber, milling and sawing devices are made in the form of a drilling-grooving-sawing unit, and sequentially mounted between the four-sided longitudinally milling machine and the drilling-grooving-sawing unit the connected end-face processing unit and the end-splicing unit, while roller tables are installed between the four-sided longitudinal milling machine, the end-processing unit, the end-splicing unit and the drilling-grooving-sawing unit.