SU1440483A1 - Method of producing angle pieces for furniture elements - Google Patents

Description

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The invention relates to the furniture production technology and can be used when making angular joints of furniture elements, television enclosures, etc.

The aim of the invention is to increase the reliability of connections.

FIG. 1 shows a blank, FIG. 2,3 - the edges of the groove, and the workpiece, 10 in FIG. 4 - corner joint assembly. The angular connection of the furniture elements is carried out in the following sequence. Billet 1 from la IInirovanny chipboard chipboard, 15 for example, with a size of 2000x120x10 mm about the edges of the short side of 120 mm is processed on a milling machine, on which three cutters, sharpened at an angle of 20 0-85 °, are installed with equal spacing. Chamfering at an angle of 40-42, on the lined surface stick adhesive tape with segments along the grooves along the entire length of the workpiece. At intervals equal to the length of the connecting furniture elements, wedge grooves 2 are formed with an angle at the BOSS notch and a depth of 1.5-2.0 mm of lesser thickness of the workpiece, with peaks facing the lined surface. thirty

The blank is placed on a press on which five wedges with protrusions and depressions are mounted on the top heated plate on the surfaces of the wedges with the working part angle 35 equal to 90 and heated to 180-200 C. The hot stamping of the blank is made to the lined surface with the formation on the surfaces of the faces 3,4 of wedge grooves 2 mating inter-40. between them protrusions 5 and depressions 6.

Kleenanos Etsim device on the edge of 3.4 with protrusions 5 and depressions 6 is applied adhesive composition, while the edges are heated to 130-140 ° C in the process of 45 embossed. By turning the edges 3,4 around the top of the groove 2, they join together, connecting their projections with the depressions. Then

preform.ku 1 is placed in an assembly vaymu with a pneumatic actuator, hold at da = 5-8 kg / cm for 40-60 s.

The method of making corner joints excludes chipping, flaking, cutting does not require trimming the lower part of the workpiece, a malleable allowance when making a wedge groove always provides a constant embossing angle and an exact limit of emboss 1-sh. Since after embossing no spalling is formed on the front surface, the adhesive tape is intended only for fixing furniture elements between themselves and can be positioned across the groove.

Claims (1)

Invention Formula A method of making angular joints of furniture elements, mainly furniture pliers, including gluing adhesive tape on the lined surface, forming in the workpiece at intervals equal to the length of the furniture elements to be joined, wedge grooves facing to the lined surface, applying glue to the edges of the grooves, combining between the faces of each groove by turning them around the top of the groove and the polymerization of the adhesive composition under pressure in the assembly vayme, from. In order to increase the reliability of the joints, the formation of the grooves is carried out in two stages: prefetching a groove with a BOSS apex angle to a depth less than 1.5-2.0 mm in thickness, and with hot embossing to the lined the surface of the workpiece at 180–200 ° C with the formation of faces on the surfaces of the grooves of mating protrusions and depressions, while the adhesive composition is applied to the edges of the grooves heated to 130–140 ° C during embossing. xJ -A S b 5 6 (rag. 7