RU2344261C1 - Method of solid wood door production - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to construction, mainly to the door production methods. The invention provides for improving door strength. The method of solid wood door production consists of six stages. Stage 1 includes production of work pieces, which length is equal to door length, items sorting out by quality, production of parallelogram work pieces from qualitative wood pieces with equal sloping angle, production of work pieces from low-quality boards and with length being equal to the door with glued board pieces. Stage 2 is comprised of a unit gluing by alternating two glued work pieces and one low-quality board with full door length being between them. Besides, the glued work pieces are directed inside the unit with their parallelograms. Then, the unit is sawed lengthwise and perpendicular to the board plane into three equal pieces. Stage 3 provides for producing four door leaves lined up with parallelograms from one side by the combined gluing and sawing operations on the composite unit consisting of two bases and parallelograms between them. Stage 4 includes production of two packages by gluing parallelograms onto unlined sides of two out of four parts of the door leaf and other parts gluing on parallelograms with their unlined sides. Stage 5 envisages production of four door leaf parts by sawing each of two packages along parallelogram plane. Stage 6 is the production of door by gluing the above four parts along edge and in accordance with the repeating wood texture pattern.

EFFECT: improvement of door strength.

6 dwg

Description

The invention relates to building materials and structures and may find application in housing and furniture industry.

A known method of manufacturing doors from dense wood (RF patent No. 2285100, IPC 7 EV 3/70), comprising the following operations: the manufacture of panels formed by gluing a plurality of dense wood boards arranged vertically one after another, each panel having the dimensions of the door, removal of one or more horizontal strips from each panel having a length shorter than the width of the panels, which forms horizontal windows corresponding to wooden strips that are sawn and cut, installation of pre-mounted a wok in the windows, each of which is formed by gluing various solid wood boards to complete finished cladding panels made of glued solid wood boards, some of which have vertical fibers and others have horizontal fibers, making a wood supporting frame consisting of panels of the same the dimensions of both the paneling and the perimeter formed by the frame, reinforced with transverse elements for stiffness, filled with many alternating rows of solid wood planks, and each of them has the fibers orthogonal with respect to the corresponding series of boards on the two outer panels plating, performing a complete door by gluing two panels on the two opposite sides of the midplane.

The disadvantages of this method are:

- the inability to ensure stable dimensions due to changes in humidity and temperature, since during prolonged use of the door there is a violation of the adhesive layer at the junction of the panels, leading to deformation of the product;

- the complexity of the manufacturing technology of the door due to the variety of sizes and shapes of the parts that make up the door.

Closest to the technical nature of the present invention is a method of manufacturing doors from solid wood, described in the patent of Russian Federation No. 2112127, IPC 7 Е06В 3/70. The method includes the manufacture of three panels that are glued together. External boards are made of glued together bars. The inner shield is glued from the bars located perpendicular to the bars of the outer shields. The bars of the outer panels are glued so that the gluing planes of one shield are offset from the gluing plane of the bars of the other shield.

The disadvantages of the prototype are:

- the inability to use in full low grades of wood: (wood with a knotty, gritty, blue, slanted, cracked) for the manufacture of the product;

- insufficiently high strength of the product due to changes in temperature and humidity, since during prolonged use there is a violation of the adhesive layer at the joints of the boards, leading to deformation of the product.

The objective of the invention is the ability to use in full low grades of wood and increase the strength of the product with fluctuations in temperature and humidity during prolonged use of the product.

The problem is achieved in that the method of manufacturing doors of solid wood, including the manufacture of a multilayer door leaf, according to the invention includes the following operations: production of standard boards with blanks of a size equal to the length of the door, sorting among boards with a full door length by quality, cutting of blanks in the form parallelograms with the same angle of inclination selected in the areas of high-quality wood, gluing the remaining scraps of boards, except for high-quality parallelogram blanks, n and a board with a full door length, rejected in quality, cutting overhangs, similar manufacturing of a second same glued blank, etc., gluing a block by alternating two glued blanks and one low-quality board with a full door length between them, with bonded blanks facing in parallelograms inside the block, similar manufacturing of the next block, etc., sawing the block along the length perpendicular to the plane of the board into three equal parts - the basis for gluing parallelograms, manufacturing a composite block pu gluing prepared quality parallelograms to one of the obtained bases, cutting overhangs and gluing another basis to these parallelograms, sawing the resulting composite block along the parallelogram plane along the entire length parallel to the plane of the board into two equal parts, gluing the basis to the sawn surfaces of the received parts of the composite block, sawing each of these parts with a base glued along the plane of parallelograms along the entire length parallel to the plane of the board into two equal parts, glued high-quality parallelograms to two of the four received parts from the opposite sawn side, gluing the remaining two parts with a glued base with a sawn surface outward to the plane of these parallelograms, sawing each of the two received packets along the plane of the internal parallelograms into two equal parts, gluing the four parts obtained with two-sided lining with parallelograms, along the edge part according to the pattern of the repeating detailed texture of the tree.

For greater clarity of the invention, the key steps of the method are described with reference to the accompanying drawings.

Figure 1-6 illustrates the steps illustrating the manufacture of doors.

Stage 1 - production of blanks:

- the manufacture of blanks from standard boards with a length equal to the length of the door, sorted into high-quality and low-quality;

- manufacture of parallelogram blanks from high-quality wood with the same angle of inclination;

- the manufacture of blanks 1 from low-quality boards with a length equal to the length of the door with scraps glued to it (Fig. 1).

Stage 2 - gluing the block by alternating two glued blanks and one low-quality board 2 with the full length of the door between them, the glued blanks facing in parallelograms inside the block (figure 2), and sawn into three parts perpendicular to the plane of the board, each of which is the base 3 for gluing parallelograms.

Stage 3 - the manufacture of four parts of the door leaf a, b, c, d, lined on one side with parallelograms 4, according to the proposed method (figure 3).

Stage 4 - the manufacture of two packages by gluing parallelograms 4 to two (a and b) of the four received parts of the door leaf on their non-facing sides and then gluing parts (c and d) to these parallelograms; uncoated parties (figure 4).

Stage 5 - the manufacture of four parts of the door leaf e, f, g, h (Fig. 5) (lined with parallelograms on both sides) by sawing each of the two received packets along the plane of the parallelograms, as shown in Fig. 4.

Stage 6 - manufacturing a door by gluing along the edge of the four parts e, f, g, h according to the pattern of a repeating detailed texture of the tree (Fig.6).

Bonding is done with any glue for wood under a press or other mechanical force. After gluing the four parts e, f, g, h into a single sheet, it is cut to the size of the door.

The advantages of the proposed method in comparison with the known are:

- the ability to use in full low grades of wood (wood with a knotty, luster, blue, slanting, cracks) for the manufacture of the product;

- increasing the strength of the product with fluctuations in temperature and humidity during prolonged use of the product;

- the ability to obtain a pattern in the form of a repeating detailed texture of the tree without special operations.

Claims (1)

A method of manufacturing doors of solid wood, including the manufacture of a multilayer door leaf, characterized in that the manufacture of a multilayer door leaf includes the following operations: production of standard boards of blanks with a size equal to the length of the door, sorting among boards with a full door length by quality, cutting of blanks in the form of parallelograms with the same angle of inclination selected in the areas of high-quality wood, gluing the remaining scraps of boards, except for high-quality parallel blanks ograms on a board with a full door length, rejected in quality, cutting overhangs, similarly manufacturing a second same glued blank, gluing a block by alternating two glued blanks and one poor-quality board with a full door length between them, with glued blanks facing parallelograms inside the block, similar making the next block, sawing the block along the length perpendicular to the plane of the board into three equal parts - the basis for gluing parallelograms, making the composite block put m gluing the prepared quality parallelograms to one of the obtained bases, cutting the overhangs and gluing another basis to these parallelograms, sawing the resulting composite block along the plane of parallelograms along the entire length parallel to the plane of the board into two equal parts, gluing the basis to the sawn surfaces of the received parts of the composite block, sawing each of these parts with a base glued along the plane of parallelograms along the entire length parallel to the plane of the board into two equal parts, glued high-quality parallelograms to two of the four received parts from the opposite sawn side, gluing the remaining two parts with the base glued with a sawn surface outward to the plane of these parallelograms, sawing each of the two received packets along the plane of the internal parallelograms into two equal parts, gluing the received four parts with two-sided lining with parallelograms, along the edge part according to the pattern of the repeating detailed texture of the tree.

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