SU1430271A2 - Apparatus for applying glue onto veneer sheets - Google Patents

Abstract

The invention relates to the woodworking industry. The purpose of the invention is to improve the quality of veneer application. The device consists of upper convex 1 glue roller, dispensing concave 3 rollers and lower concave 2 glue rollers, dispensing convex 4 rollers. The glue rollers 1 and 2 are made of teams from sections 5. The extreme sections 5 of the lower roller 2 and the middle section 5 of the upper concave roller 1 are rigidly fixed on the shafts 6 and 7 and, rotating at a predetermined speed, take the veneer sheet to drive it into movement. The remaining sections 5, loosely seated on shafts 6 and 7, rotate due to contact with a moving sheet of veneer, each at a different speed depending on the radius of the section. 2 Il. ABOUT)

Description

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Fig1

The invention relates to the woodworking industry.

The purpose of the invention is to improve the quality of adhesive application.

FIG. 1 shows a device for applying glue to veneer sheets; FIG. 2 - kinematic diagram of the device,

In the case of the device, the upper convex 1 and the lower concave 2 are mounted with glue rollers with metering - the upper concave 3 and the lower convex 4. The glue rollers 1 and 2 are filled with prefabricated sections of sections 5 on the upper and lower 7 shafts. The middle section 5 of the upper convex roller 1 and the extreme sections 5 are made equal in diameter and rigidly fixed respectively on shafts 6 and 7 (using a key), while the remaining sections 5 are freely seated on shafts 6 and 7 (using bearings).

The device works as follows.

The sheet of veneer is served on the front side directed to the upper convex roller 1, and the back side to the lower concave 2 glue roller. This position of the sheet leads to the opening of the cracks of the sheet and filling them with glue. The extreme sections 5 of the lower convex drum and the middle section 5 of the upper concave drum are rigidly fixed respectively on shafts 6 and 7

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with

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five

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and, rotating at a given speed, captures a sheet of veneer, sets it in motion, while the remaining sections 5, which are freely seated on shafts 6 and 7, rotate due to contact with the moving sheet of veneer, each with a different speed depending on the radius of the section . All sections 5, as it were, roll across the sheet, each with its own speed, applied strictly. A certain amount of glue and without exerting undesirable shear forces on the sheet. After. Passing the sheet of veneer through the glue rollers repeats the cycle.

The proposed device improves the quality of adhesive application by increasing the penetration depth of the adhesive into the veneer cracks, since slippage between the sheet and rollers is eliminated and the flow of adhesive is stabilized.

Claims (1)

Formula Apparatus for applying glue to veneer sheets according to ed. No. 844292, characterized in that, in order to improve the quality of glue application, the glue rollers are made into teams in the form of sections on shafts, the extreme sections of the lower drum and the middle section of the upper drum are equal in diameter and have a tight connection with the shafts, and the rest are free on shafts. -H Editor N. Gorvat Compiled by N, Antonova Tehred L. Serdyukova Order 5187/17 Circulation 472 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5  "Proofreader M.Vasilyeva Subscription