SU1174359A1 - Apparatus for unreeling rolls - Google Patents

Abstract

1. ROLL TURNING DAY DEVICE, containing clamping centers mounted in support posts, and means for lifting the roll to the level of clamping centers, including a cable drive shaft with pulleys and a roll holder suspended on the cables, characterized in that, in order to facilitate operation, the holder The roll is made in the form of a U-shaped box with openings in the side walls for the passage of centers, while the suspension points of the cables are placed on the side walls of the box above the level of the clamping centers. 2. The device according to claim 1, characterized in that at the base of the duct an opening is made for the passage of racks. y 3. Device according to nn. 1 and 2, o t (L, in that the cable shaft has a means of adjusting the axial position of the pulleys. Vl 00 ate with

Description

The invention relates to devices for unloading web-fed materials in flow lines, in particular, in printing presses.

The chain of the invention is to facilitate the executing.

FIG. 1 shows the proposed device, a general view; in fig. 2 variant of the proposed device for installing rolls of various widths; in fig. 3 - the proposed device, the cut.

The devices consist of racks 1, on which extendable rotating clamping centers 2 are installed, means 3 for lifting the drive shaft 4 on which the pulleys 5 are secured by winding the cables 6. The cable is attached to the upper suspension elements .7 of the box 8, which has an i-shape. In the box 8 there are openings 9 (in the side walls) and 10 (at the bottom).

The roll 11 can be mounted on stationary fixed on racks 1 centers 2 (figure 1), inserted when mounting the roll 11 in openings 9 of the box 8, and on centers 2 installed on additional racks 12 (fig. 2), pre-installed on the required size and fixed on the base plate 13, with the posts 12 located in the opening 10 of the bottom of the box 8.

For lateral displacement of the roll 11 during charging (Fig. 3), the shaft 4 is mounted with the possibility of moving along the axis the pulleys 5, in which the inner end has a thread 14, cooperating with the threaded sleeve 15 with the rotatable handle 16 rotated on it, freely sitting on the shaft 4 and limited to the longitudinal movement of the stops 17.

The roll 11 is charged in the following manner.

The roll 11 rolls inside the box 8. With the lifting means 3, the shaft 4 is rotated, the cable 6 is wound around like 5, the roll 11 in the box 8 rises to the level of centers 2. To accurately set the roll 11, the handle 16 rotates, the pulleys 5 move respectively to the right or to the left by the required amount. Then the centers 2 are pushed in and the roll is fixed on them in a known manner (for example, with the help of pull-out keys). Thereafter, the duct 8 is lowered, charging a charge to unwinding.

The device is easy to maintain, since it quickly re-adjusts to a different roll width, and its rise to a different height is accomplished by simple means.

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Claims (3)

1. DEVICE FOR UNLOADING ROLLS, containing clamping centers mounted in support racks, and means for lifting the roll to the level of clamping centers, including a cable drive shaft with pulleys and a roll holder suspended on cables, characterized in that, in order to facilitate operation, the roll holder is made in the form of a U-shaped box with openings in the side walls for the passage of the centers, while the places of suspension of the cables are placed on the side walls of the box above the level of the clamping centers. 2. The device according to p. 1, characterized in that at the base of the box is made an opening for the passage of racks. 3. The device according to paragraphs. 1 and 2, characterized in that the cable shaft has means for adjusting the axial position of the pulleys. .... SU „„ 1174359 Fig /