SU437614A1 - Mold for the manufacture of benthoken blocks - Google Patents

Description

one

The invention relates to the woodworking industry and relates to the inference for the manufacture of bentwood blocks.

Known molds for the production of bent-glued blocks on single-plunger presses, including traverse, die and punch with sliding side and hanging bottom pressing plates, do not allow ipaiBHOMepHoro to reach pressure over the entire area of the pressed block, and therefore do not provide production quality blocks.

The purpose of the invention is to eliminate the disadvantages indicated.

For this, the lateral pressing plates are hingedly connected to the crosshead and are arranged to interact with the lower pressing plate.

FIG. 1 shows the mold at the lower position of the punch; in fig. 2 - the same, with the upper deduced position of the punch a.

The mold consists of a matrix il, which is attached to the press table, and a punch 2 with a PLATE-M1I lateral pressing plates 3, a suspended bottom pressing plate 4 and a cross-bar 5. The plates 3 are connected with a cross-bar 5 spherical levers, and a plate 4 - at assistance 7.

In its lower part, the ilites 3 have oblique surfaces that interact when the mold is in operation with similar oblique surfaces of the plate 4.

The mold works as follows.

When running down the punch 2 with its plate 1 pushes 1 package with veneer into the die. With an increase in the punch stroke, the pressing forces and, in turn, the resistance of the package to bending increase. With euM, plate 4, resting on the bag, stops its movement downwards and with its beveled surfaces presses against the beveled surfaces of the side plates 3, causing them to move apart.

Punch 2, continuing to move, pushes the package to the bottom of the matrix 1. The sliding forces increase and the plates 3, interact with the plate 4, create uniform pressure over the area of the package, finally

form a block.

In this position, the compressible bag is maintained according to the technological regime until the nOvTHoro curing of the glue. The heating of the mold can be carried out with steam,

electrocontact method or RF generator. After holding the block, the punch 2 rises up, and the plates 3 and 4 return to their original position, lowering down, as shown in FIG. 2. The block is released and discharged from the mold, after which the cycle is repeated.

Subject invention

A mold for the manufacture of bent-glued blocks, including a traverse / die and a punch with sliding side and hanging bottom pressing plates, characterized in that, in order to improve the quality of manufacturing the P-and L-image of the blocks in single-junction press, lateral Pressing plates are connected to the cross-beam and installed with the possibility of interaction with the lower pressing plate.

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