RU2186920C2 - Method for production of parts of woodwork-construction products - Google Patents

Abstract

FIELD: civil engineering, applicable in manufacture of windows. SUBSTANCE: method for manufacture of parts for wooden windows consists in preliminary determination of the number and dimensions of plates forming the profile section of the finished part in thickness, and the tenon or eyelet - in length, division of the workpiece into plates, application of adhesive onto each after division, placement of plates in the form of a finished parts with a profile, tenon or eyelet, and cementing under pressure in a single stage. EFFECT: provided manufacture of woodwork-construction products without preliminary production of timber and use of expensive equipment and tools for formation of profiles and eyelets of parts. 6 dwg

Description

 The present invention relates to construction and can be used in the manufacture of windows, doors and other construction products.

 A known method of producing building products, including obtaining blanks from lumber, gluing them into bars, cutting the timber according to the dimensions of the parts, forming an internal profile, cutting spikes and grooves, gluing parts into a finished product and forming an external profile (1). The disadvantages of the method are multi-stage process, the need to use energy-intensive expensive equipment, increased consumption of lumber, glue.

 Closest to the proposed one is a method according to which parts for joinery products are prepared as follows: processing workpieces in order to obtain spliced along the length of the bars, transverse cutting to the original workpieces of the required length by milling along the section, gluing along the thickness, forming profiles, spikes and eye parts on special processing equipment (2).

 The disadvantages of this method are the complexity and multi-stage process of obtaining parts. Preliminary production of timber by splicing along the length and gluing along the thickness of the workpieces leads to an overrun of lumber and glue, since in the manufacture of parts, its secondary processing is performed. The formation of profiles and cutting eyes (grooves and spikes) of parts requires the use of energy-intensive expensive equipment and tools.

 The problem solved by the invention is to create a method of manufacturing parts for carpentry-building products without first obtaining a beam and the use of expensive equipment and tools for forming profiles and eyelets of parts.

 The problem is solved due to the fact that in the method of manufacturing parts of carpentry-building products, including the preparation of blanks, cutting, forming profiles, spikes and eyelets of parts, before cutting, determine the number and size of plates forming the finished part with profiles, spikes or eyes, cut blanks on the plates, lay the plates with the formation of the finished part with profiles, spikes or eyes and glued together in thickness.

 The proposed method is as follows.

To obtain parts, take billets from lumber that meet certain requirements for permissible defects and processing defects. Before cutting, the optimal number and size of plates is determined by the thickness of the section forming the profile of the finished parts, depending on its complexity. For example, a window sash (Fig. 1) consists of four parts: two vertical, upper and lower, one profile (Fig. 2, section AA), interconnected by a tenon-groove method. In this case, it is advisable to divide the cross-section by the thickness of the sodium plate - a, b, c (Fig. 3, section CC). The length of each plate is also determined to form spikes or grooves in the cross section. The data obtained is used when cutting lumber using special equipment. First, on planing machines, plates are formed that form a cross-section of the profile of the parts, then, for example, with a miter saw that provides high accuracy along the length and angle of cut, the plates are divided along the length. On the surface of the plates, glue is applied, placed in a press or a sheath with the formation of a finished part with profiles, spikes or eyes. The press or plate is additionally equipped with reusable limiters that prevent the plates from moving in space. The resulting part is kept under pressure for 15-20 minutes at 20-25 ^o C. Figure 4 shows a perspective view of a fragment of a part with an eye, figure 5 is a fragment of a part with a spike, obtained by the claimed method from plates a, b and c (Fig. 3, section CC). Figure 6 shows in perspective view a fragment of the sash (Fig. 1, node B) obtained by joining a tenon groove of the vertical and lower parts.

 The inventive method provides high-quality carpentry and building products at a more economical consumption of lumber and glue without the use of stages requiring the use of expensive energy-intensive equipment and tools.

Sources of information
1. Kacherovsky B.E. and others. New equipment and technology for the production of window blocks. Moscow, Forestry, 1970, p. 54-59.

 2. Onegin V.I. et al. Constructive technological and technical-organizational features of the production of modern wooden windows, Moscow, Zh. Woodworking industry, 1998, 3, p. 13-14.

Claims (1)

 A method of manufacturing parts for wooden windows, including preliminary determination of the number and size of plates forming a section of the finished part in thickness, and the length of a spike or eye, dividing the workpiece into plates, applying glue to each plate after division, laying the plates in the form of a finished part with profile, spike or eye and gluing under pressure in one stage.

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