SU429973A1 - - Google Patents

Description

(54) DEVICE FOR OBTAINING CHEVRONNYE

STRUCTURES

Between the last pair of rollers and the die, a ruler 13 with longitudinal gear grooves, rigidly connected to the spring plate 8, is set.

A plate 14 is movably mounted on racks 10 above the die, in which holes on studs with stops 15 and springs 16 a punch 17 with a profile comb is strengthened. On one side of the plate 14 above the profile comb 9 of the plate 8, the profile comb 18 is strengthened.

The matrix and the punch are supplied with electric heating elements. Working profiles of the matrix and punches are made with a given profile of the chevron structure.

The reciprocating movement of the caliper in the horizontal plane and the punch in the vertical is provided by the electric motor 19 by means of gears and crank-shatupnyh mechanisms 20 and 21.

Sheets of paper 22 in the form of a tape, pre-coated with glue, are fed by the feed mechanism to the first pair of rollers of the mechanism for forming longitudinal folds. Rolled between the rollers, the paper moves to the next pair of rollers, which form longitudinal folds. Further, along the guide line 13, the paper with formed longitudinal folds enters the matrix 11 of the mechanism for forming the transverse folds, which is in the leftmost position.

When the electric motor 19 is switched on, the crank mechanism 20 is actuated, which communicates the reciprocating movement to the support 5 in the horizontal plane along the bed guides 4. At the same time, the movement of the hinged plate 14, which is lowered along the guide posts 10, is transmitted through the crank mechanism 21, and the profile comb 18 presses the tape end inserted into the matrix to the profile comb 9. The plug 17 descends together with the plate 14 and under the action of the springs 16 is pressed against

the matrix 11, while the plate 8 is displaced down along the guide 6, compressing the spring 7. Next, the mechanism for forming the transverse folds moves to the extreme right position, after which the crank-rod mechanism 21 raises the plate 14. At the same time, the comb 18 first rises, until the plate 14 reaches the stops 15, after which the punch G rises and all the profile combs 9 simultaneously rise, the passage through the corresponding slots in the matrix I. The plate 8 with the profile combs 9 rises above the upper plane of the matrix 11 to a height, p Adjusted by the stops 12. The next stroke of the crank mechanism 20 moves the mechanism for forming the transverse folds to the initial position. This completes the cycle for the formation of the shevron structure.

Subject invention

Claims (3)

1. A device for producing chevron structures containing a material feed mechanism and mechanisms for forming longitudinal and transverse folds, characterized in that, in order to improve the quality of the corrugation, the mechanism for forming longitudinal folds is made in the form of rollers mounted on parallel axes equidistant from each other by the magnitude of the radius, and the mechanism of the formation of the transverse folds contains a caliper, on which a spring-loaded plate is installed, having profiled combs, a matrix with slots in which they can be moved ьs profile comb plates, and a spring-loaded punch with a forming comb. 2. The device according to claim 1, characterized in that between the last pair of rollers and Matrix installed ruler, rigidly connected to the spring plate. 3. The device according to claim 1, characterized in that the punch and die are provided with electric heating elements.