CN107053378A

CN107053378A - A kind of method for improving large scale integrated timber stability

Info

Publication number: CN107053378A
Application number: CN201710342291.6A
Authority: CN
Inventors: 高振忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-16
Filing date: 2017-05-16
Publication date: 2017-08-18

Abstract

The present invention relates to a kind of method for improving large scale integrated timber stability, and in particular to the method for being spliced into large scale integrated timber stability by six prism veneer bolts of small size.The new technology of the present invention includes：Including several six prisms veneer bolts, mortise is carried out on the contact surface of six prism veneer bolts of composition integrated timber and the fixation inside strengthening by snap effect, in the contact surface mortise head or tongue-and-groove of adjacent six prisms veneer bolt, the stability of integrated timber is strengthened by the cementation and pressurization of tenon and tongue-and-groove buckle combination veneer bolt contact surface.Advantage：Avoid spelling in wide spelling growth process and gliding dislocations phenomenon occur between cemented surface, improve the internal stability and the utilization rate to integrated timber of integrated timber.

Description

A kind of method for improving large scale integrated timber stability

Technical field

The present invention relates to a kind of method for improving integrated timber stability, belong to wood processing field, more particularly to utilize six Prism veneer bolt pressurizes into the field of integrated timber by mortise gluing and assembly.

Background technology

Raising with the limitation and society cut down in recent years to timber diameter grade to timber products demand, artificial forest wood, I.e. fast-growing forest timber is efficient using with rationally producing, as the important channel for alleviating timber supply and demand contradiction.

Existing integrated timber substantially by treating that gluing presses on the path juggle contact surface of assembly, and then make after processing Into meeting follow-up sawing or can be made into the integrated timber of specification slab, panel, its purpose is provided to improve the utilization rate to timber, But have ignored after early stage gluing the assembly juggle in the case where glue is uncured occurred to break away by external carbuncle and such as weather, temperature, The influence to integrated timber internal stability such as Tool in Cutting speed during processing, and then more unnecessary wastes can be caused.

It is quality-high and inexpensive because of urea-formaldehyde resin adhesive for the splicing of timber, prepare simple so that obtained in timber processing Widely use, but due to that can discharge substantial amounts of free formaldehyde and for bonding strength, also can not gradually meet modern furniture Development, therefore, the modification for urea-formaldehyde resin adhesive becomes more and more important, at the same time, for some low formaldehyde, formaldehydeless release And can guarantee that strong rubber relay, the adhesive of high mechanical properties, such as epoxide-resin glue, polyurethane adhesive, amino resin adhesive, Melamine resin adehsive stick, is also gradually begun to use by people.

The content of the invention

The present invention is directed to above-mentioned defect, and proposition is a kind of to be spliced into large scale collection by six prism veneer bolts of small size The method for stability of becoming a useful person, carries out mortise head or tongue-and-groove by the contact surface to adjacent six prisms veneer bolt, is made and meets assembly The tenon and tongue-and-groove needed, by tenon and the cementation and pressurization of tongue-and-groove buckle combination veneer bolt contact surface, makes The six intersegmental fixations of prism log of small size, improve internal stability and complete follow-up prepare.

As an improvement, to carrying out mortise processing on each contact surface of adjacent six prisms veneer bolt, institute's mortise head and right The tongue-and-groove answered is shaped as dovetail or square tenon.

As an improvement, it is 1-6 that adjacent six prism, which each contacts institute's mortise head, the quantity of tongue-and-groove,.

As an improvement, adhesive used in cementation is epoxyn or polyurethane adhesive or amino tree One kind in fat adhesive or melamine resin adehsive stick.

As an improvement, pressure used in pressurization is 0.3-1.5MPa, the time is 20-100 minutes.

As an improvement, completing after preparing, slicing, sawing can be carried out to gained large scale integrated timber, the side such as rotary-cut is cut off Formula is processed into variously-shaped material body.

The present invention is first opened six prism veneer bolts of small size compared with the integrated timber being only made up of cementation Tenon, by buckle and cementation, both can guarantee that assembled seam was close, i.e., will not be because glue is uncured after early stage gluing assembly Produce slip, it is to avoid spell wide spell in growth process and gliding dislocations phenomenon occur between cemented surface, under external force, such as shadow of side stress Under sound, also will not deform and fall off easily, gap.Meanwhile, change the intrinsic connecting method of integrated timber, also reduce because The problems such as weather, temperature, which makes integrated timber internal sizes junction change, causes the possibility of stability reduction.

Brief description of the drawings

Fig. 1 opens dovetail schematic diagram by six prism material sections.

Fig. 2 is six prism dovetail integrated timber schematic cross-sections.

Fig. 3 is six prism dovetail integrated timber schematic diagrames.

Embodiment

In order to which the present invention is expanded on further, implemented according to the following steps, in table data be 9 embodiment experiment parameters and Representative parameter evaluation explanation.

1. saw lumber, log material is first narrow after width according to short after first growing using small diameter grade fast-growing Chinese fir, first principle thin after thickness, Reasonable sawn timber, prepares long 1.5m, wide 10cm flitch, simultaneously for the flitch for being unable to reach 1.5m length, is wider than 8cm in port Same reservation carry out following process.

2. pair flitch prepared is dried, first spontaneously dried, after 4 days, be put into barn drying, moisture control Between 8%-12%.When moisture content reaches standard, cool and open door, cool to 40 DEG C, other time in 4-10 months（Winter My god）Door can be opened by needing to drop to 25 DEG C, to prevent difference variation from causing very much implosion soon.

3. pair dried flitch carries out slicing processing, by entering plane, planer, rotary-cut, cross cut saw, flitch is processed into and met Integrated specification, i.e., long 1m, the port length of side is the 6cm prism veneer bolt of small size six, to meeting port sizes and length is discontented with 1m Long flitch, in port contact face, coating epoxyn carries out spreading.

4. utilize tenonen, to carrying out mortise processing on each contact surface of adjacent six prisms veneer bolt, institute's mortise head and Corresponding tongue-and-groove is shaped as dovetail or square tenon.

5. by automatic glue spreading device, gluing processing is carried out to six prism veneer bolts and tenon, the contact surface of tongue-and-groove, it is used Adhesive is one in epoxyn, polyurethane adhesive, amino resin adhesive, melamine resin adehsive stick Kind.

6. carrying out splicing assembly to six prism veneer bolts after the completion of gluing and pressurizeing, temperature control is in 30 DEG C, pressurization Pressure be 0.3-1.5MPa, the time be 20-100 minutes.

7. pressurization terminates rear release, and integrated timber is placed on into health 40h in the environment that temperature is 20 DEG C.

8. health just can be produced and processed after terminating by cutting out the subsequent handlings such as plate, sanding.

Each embodiment experiment parameter of table 1 and exemplary parameter evaluation table.

It can be obtained from embodiment, to the contact surface mortise head or tongue-and-groove of adjacent six prisms veneer bolt and pass through tenon and tongue-and-groove In the case that the cementation of buckle combination veneer bolt contact surface is processed, the characteristic performance that large scale integrated timber is made refers to Mark is significantly improved compared with without the large scale integrated timber that mortise is handled；Secondly, by embodiment, pressing time, pressure, with And the selection of adhesive type can also produce influence, when the time is less than 20min or moulding pressure is less than 0.3Mpa, the collection being made Properties of becoming a useful person are also poor, and select water-based polyurethane adhesive, then can not have better performance embodiment.

The general principle and principal character of the present invention has been shown and described above.It should be understood by those skilled in the art that, The present invention is not limited to the above embodiments, without departing from the spirit and scope of the present invention, and the present invention also has various Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.

Claims

1. a kind of improve the method for being spliced into large scale integrated timber stability by six prism veneer bolts of small size, it is characterized in that： In the contact surface mortise head or tongue-and-groove of adjacent six prisms veneer bolt, pass through tenon and the glue of tongue-and-groove buckle combination veneer bolt contact surface Connect effect and pressurization strengthens the stability of integrated timber.

2. a kind of method for improving large scale integrated timber stability according to claim 1, it is characterised in that：To adjacent six Each contact surface of prism veneer bolt carries out mortise processing, and tenon and tongue-and-groove are shaped as dovetail or square tenon.

3. a kind of method for improving large scale integrated timber stability according to claim 2, it is characterised in that：The mortise Each contact surface institute mortise head, the quantity of tongue-and-groove are 1-6 during processing.

4. according to claim 1 it is a kind of improve large scale integrated timber stability method, it is characterised in that：It is described to be glued work It is with used adhesive：Epoxyn, polyurethane adhesive, amino resin adhesive, melamine resin adehsive One kind in stick.

5. a kind of method for improving large scale integrated timber stability according to claim 1, it is characterised in that：Pressurization Pressure be 0.3-1.5MPa, the time be 20-100 minutes.

6. a kind of method for improving integrated timber stability according to claim 6, it is characterised in that：The integrated timber can be with Carry out slicing, sawing, cut off, the mode such as rotary-cut is processed into variously-shaped material body.