RU2522727C1 - Method to produce end face board panel elements from wood - Google Patents

Abstract

FIELD: woodworking industry.

SUBSTANCE: method to produce end face board panel elements from wood involves roundup of round timber, cutting of longitudinal grooves, gluing of workpieces into a block, cross cutting. The longitudinal groove cutting is carried out in two opposite planes with the same radius r which was used for the round timber roundup. The groove width amounts to $$R\sqrt{2}.$$

The end face board panel elements are produced from the glued blocks by their cross cutting. The longitudinal groove cutting is carried out in three planes set at an angle of 120° to each other with the same radius r which was used for the round timber roundup, and the groove width is equal to the radius r. The end face board panel elements are produced from the glued blocks by their cutting at the angle to the fibres different from 90°. The glued workpieces are cut into thinner end face board panel elements with further gluing of them onto the base from particle boards, plywood or other board materials. The obtained end face board panel elements are cut by the perimeter to produce board panels of a rectangular or parallelogram shape. The obtained board panel elements are impregnated with special fine compositions and are heat treated.

EFFECT: improved quality of produced sawn goods, reduced wood waste, decreased labour inputs.

6 cl, 9 dwg

Description

The invention relates to the woodworking industry and can be used in construction, in the manufacture of flooring, as facing panel elements, elements of wood products. And also for the production of products to which increased demands are made on hardness. At the present stage of development of the forest complex, the question arises of the need for widespread use of low-value wood, which includes fine wood.

A known method of manufacturing end-face parquet boards, including the manufacture of parquet blocks, filling their joints with adhesive material and surface treatment of the front layer. In this method, parquet blocks of arbitrary cross-section are glued to the underlying layer, and holes are made in the lateral adhesive layer between the blocks, which are filled with cylindrical wood inserts to obtain a continuous face layer. The advantage of this method is the possibility of additional use of small parts of trees or brushwood. However, this method requires an increased consumption of adhesive materials, is laborious, and the process at the stage of filling gaps between checkers with small details is difficult to automate [1].

There is another method of manufacturing parquet end checkers hexagonal or rectangular in shape from compacted wood [2].

The disadvantage of this method is the large amount of waste during the formation of a hexagonal or rectangular section, low productivity when laying piece parquet, and also the need for an additional compaction operation.

A known method of manufacturing a glued end plate by the block mosaic method [3]. The block is made by gluing along the longitudinal edges of bars or plates of wood, the end surfaces of which create a pattern of a typeset plate, all elements being glued together. Then, the block is transversely cut into panel elements. This method is adopted as a prototype.

The disadvantage of the prototype is that the process contains many operations and in the manufacture of bars a large amount of waste is generated.

The technical result of the invention is cutting with high quality sawn products with a minimum amount of wood waste and minimum labor costs, as well as the possibility of using fine wood for the manufacture of end shield elements.

, а получение торцевых щитовых элементов из склеенных блоков производится путем поперечного их раскроя, выборка продольных пазов осуществляется в трех плоскостях, расположенных под углом 120° друг к другу таким же радиусом R, что и производилась оцилиндровка круглых лесоматериалов, при этом ширина пазов равна радиусу R, получение торцевых щитовых элементов из склеенных блоков производится путем их раскроя под углом к волокнам, отличным от 90°, раскрой склеенных заготовок осуществляется на более тонкие щитовые элементы, с дальнейшим наклеиванием их на основу из ДСтП, фанеры или других плитных материалов, полученные торцевые щитовые элементы обрезаются по периметру с получением щитов прямоугольной формы или в виде параллелограмма, полученные щитовые элементы пропитываются специальными мелкодисперсными составами и термически обрабатываются.The technical result is achieved by the fact that the method of manufacturing end shield panels from wood, including rounding round timber, selecting longitudinal grooves, drying, gluing the workpieces into a block, transverse cutting, according to the invention, longitudinal grooves are selected in two opposite planes with the same radius R as rounding of round timber was carried out, while the width of the grooves was $$R\sqrt{2}$$

and end shield panels are made from glued blocks by cutting them crosswise, longitudinal grooves are selected in three planes located at an angle of 120 ° to each other with the same radius R as round timber was cylindrical, with the grooves being equal to the radius R , receiving end shield elements from glued blocks is made by cutting them at an angle to fibers other than 90 °, cutting glued blanks is carried out on thinner shield elements, with further gluing By using them on the basis of particle board, plywood, or other plate materials, the resulting end shield elements are cut around the perimeter to obtain rectangular shields or in the form of a parallelogram, the resulting shield elements are impregnated with special finely dispersed compositions and thermally processed.

Figure 1 shows round timber; figure 2 - blanks obtained after cylindering and sampling two longitudinal grooves; figure 3 is a cross section of the workpieces; figure 4 - block blanks after gluing; figure 5 is a transverse cutting of the block on the end shield elements; figure 6 - end shield element of the blanks with two grooves; Fig.7 is a cross section of the workpieces when sampling three grooves; on Fig - end shield element of the blanks with three grooves; Fig.9 - end shield elements after trimming around the perimeter.

A method of obtaining end shields from round, mainly fine, timber is as follows.

, это позволяет оптимально плотно собрать пакет без лишних зазоров и сократить расход клеевого материала.Round timber is cylindrical, in each of them 2 longitudinal grooves are selected in two opposite planes of the same radius R as the cylindering was made, assembly is performed on these grooves in the future. The width of the grooves is equal to $$R\sqrt{2}$$

, this allows you to optimally tightly assemble the bag without unnecessary gaps and reduce the consumption of adhesive material.

Further, the obtained workpieces after applying glue are collected in a bag, which is placed in a press and glued into a block. After the adhesive composition has completely dried, the block is removed from the press. The resulting block is sawn across the fibers onto the end shield elements. If necessary, additional grooves for assembly are milled.

In order to increase the volume output of products, after rounding round timber, a selection of longitudinal grooves in three planes located at an angle of 120 ° to each other with the same radius R is proposed as rounding of round timber was performed, while the width of the grooves is equal to the radius R.

It is possible to obtain end shield elements from workpieces glued into the block by cutting it at an angle to the fibers other than 90 °.

In order to reduce the consumption of raw materials, it is possible to cut the block into thinner shield elements, with further gluing to the base of chipboard, plywood or other material.

It is possible to further trim the end shield elements along the perimeter to obtain a shield element of a rectangular shape or in the form of a parallelogram.

To stabilize the size of the products, the resulting shield elements are impregnated with special finely dispersed compositions and thermally processed.

The proposed method for producing end shield elements from round timber of small diameter makes it possible to rationally use low-grade wood, and also due to the increased strength characteristics of the end elements significantly increase the service life of such a shield element. Using the proposed technology reduces the complexity of the process.

Information sources

1. A.S. 1642957 USSR, IPC V27M 3/06, E04F 15/04. A method of manufacturing end-face parquet boards / Teper VB, Rotan A.I .; Applicant and patent holder Donetsk branch of the AmSovInvest Joint Soviet-American Enterprise. - No. 4744189/15; declared 10/10/89; publ. 04/15/91, bull.

2. Kapustin V.Ya. Research and development of equipment and some issues of technology for the production of end blocks from compacted wood: abstract. dis. scientist. degrees of cand. tech. Sciences: 05.421 "Machines, equipment and technology of sawmills and woodworking. pr-in" / Leningrad. forestry technician. Acad. them. S.M. Kirov; [scientific Head Movnin M. S]. - L .: [b. and.], 1971. - 16 p.

3. A method of manufacturing decorative plates from wood material: patent 2062230 Ros. Federation: IPC V27M 3/04 / Ryabov V.A., Divaev S.F., Tashnova J.V .; applicants and patent holders Ryabov V.A., Divaev S.F., Tashnova Zh.V .. - No. 94025544/15; declared 07/12/94; publ. 06/20/96.

Claims (6)

1. A method of manufacturing end shield panels from wood, including rounding round timber, selecting longitudinal grooves, drying, gluing the workpieces into a block, transverse cutting, characterized in that the longitudinal grooves are sampled in two opposite planes with the same radius R as the cylinder was made round timber, while the width of the grooves is

And receiving the end shield elements from the bonded blocks is made by transversely cutting them. 2. The method according to claim 1, characterized in that the longitudinal grooves are sampled in three planes located at an angle of 120 ° to each other with the same radius R as the round timber was cylindered, while the width of the grooves is equal to the radius R. 3. The method according to claim 1 or claim 2, characterized in that the end face shield elements are obtained from glued blocks by cutting them at an angle to the fibers other than 90 °. 4. The method according to claim 1 or claim 2, characterized in that the cutting of glued blanks is carried out on thinner shield elements, with their further gluing on the basis of particle board, plywood or other plate materials. 5. The method according to claim 1 or claim 2, characterized in that the received end shield elements are cut around the perimeter to obtain rectangular shields or in the form of a parallelogram. 6. The method according to claim 1 or claim 2, characterized in that the resulting shield elements are impregnated with special finely dispersed compositions and / or thermally processed.

Images