RU2064859C1 - Method of manufacturing and cutting timber - Google Patents

Abstract

FIELD: forestry. SUBSTANCE: lengthy timber 3 is shaped out of short timber with removed internal decay in the form of pithy layer 1 and connecting fellings 2. Out of short parts of timber of different length and connecting fellings lengthy timber is shaped by means of shifting face ends of contact of wood parts along the length of shaped timber. After drying, contact surfaces are coated with glue and lengthy timber is shaped. After glue hardening the longitudinal sawing is exercised according to corresponding program of cutting. EFFECT: enhanced efficiency of round timber and saw product manufacture. 3 cl, 4 dwg

Description

 Usage: in the forest industry in the production of round timber and lumber from low-quality short timber.

 The inventive of the short timber is partially or completely removed internal rot in the form of a core layer. According to the size of the organized voids in the timber, connecting blanks are made from homogeneous or heterogeneous wood, by means of which short timber is joined to form long timber. The ends of the wood contact are covered with glue, after hardening of which longitudinal cutting of long timber is carried out according to the appropriate cutting program. Preliminary longitudinal sawing of short round timber is also possible. In this case, one or more longitudinal cuts are initially performed, the core layer is removed from the parts of the timber obtained after sawing, according to the dimensions of the voids formed in these parts, connecting blanks are made from the wood, from the obtained parts of the timber and connecting blanks after drying, lengthy timber is formed by gluing, with this ends of the contact parts of the wood along the length of the formed timber displace one relative to the other.

 The invention relates to a technology for the production and cutting of round timber and can be used in the forest industry.

 The purpose of the invention to increase the efficiency of the use of low-quality short timber.

 In FIG. 1 shows long round timber formed from short circular round timber and connecting blanks; in FIG. 2 is a section AA in FIG. 1; in FIG. 3 variant of long timber formed from parts of short timber of different lengths, subject to preliminary longitudinal sawing and removal of internal rot in the form of a core layer and connecting blanks; in FIG. 4 a section BB in FIG. 3.

 The method of production and cutting of round timber is as follows.

 From short timber 1, the internal rot in the form of a core layer is partially or completely removed. According to the dimensions of the organized voids in the timber 1, connecting blanks are made of homogeneous or heterogeneous wood 2, by means of which short-length timber 1 is joined, forming a long round timber 3.

 In order to obtain sawn timber, the contact surfaces are preliminarily coated with glue, after hardening of which longitudinal sawing of long timber 3 is performed according to the appropriate cutting program.

 The method of production and cutting of round timber is carried out in another way. Initially, one or more longitudinal cuts are performed in each short-sized timber 1, and the low-quality core layer obtained from sawing parts 4 is removed. According to the dimensions of the voids formed in parts 4, connecting blanks 5 are made from wood, from the obtained parts of timber 4 and connecting blanks 5, after drying, long timber 6 is formed by gluing, and the contact ends of the pieces of wood along the length of the formed timber are displaced relative to each other. After hardening the glue, longitudinal sawing of long timber 6 is carried out according to the appropriate cutting program.

 The invention allows to obtain long timber and sawdust from short round timber with a low-quality core layer, provides a resource-saving waste-free technology in the production and cutting of round timber.

Claims (4)

 1. The method of production and cutting of timber, including the separation from the main stream of short timber, cut them, determining the shape and parameters of sections of internal rot and their removal, characterized in that in the timber internal rot in the form of a core layer is partially or completely removed, corresponding to the size of the formed of voids in the timber, connecting billets are made from homogeneous or heterogeneous wood, by means of which short timber is joined to form a long timber.  2. The method according to claim 1, characterized in that before the formation of long timber, sorting of short timber by external diameters is carried out.  3. The method according to claims 1 and 2, characterized in that before removing the core layer in short-sized round timber, one or more longitudinal cuts are performed, the core layer is removed from the parts obtained from sawing timber, respectively, the dimensions of the voids formed in these parts are made from wood blanks, from the obtained parts of timber and connecting blanks after drying by gluing to form lengthy timber, while the ends of the contact parts of the wood the length of the formed timber is shifted relative to one another.  4. The method according to claims 1 to 3, characterized in that the contact ends of the wood are coated with glue, after hardening of which longitudinal cutting of lengthy timber is carried out according to the appropriate cutting program.

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