RU2016772C1 - Arrangement for coiling and uncoiling paper band - Google Patents

Abstract

FIELD: mechanical engineering. SUBSTANCE: arrangement has bed, holders with support cones, and pressure mechanism providing linear pressure necessary for bringing rolls of paper into contact in the course of coiling and uncoiling. Installed distance between shafts of pairs of support cones is equal to the sum of average radii of paper rolls in their working position. EFFECT: enhanced efficiency in operation. 2 dwg

Description

 The invention relates to devices for rolling and rolling paper web on a printing machine and can be used in the manufacture of wallpaper on modern equipment.

 A device for unwinding and winding a paper web on a printing machine, comprising a bed, holders with paired support cones for attaching sleeves of paper rolls, one of the holders is mounted with the possibility of reciprocating movement in a horizontal plane and equipped with a clamp mechanism [1].

 The prototype device is part of a rotary machine, which includes a printing machine.

 Devices for unwinding and winding (roll and roll) are respectively located at the beginning and at the end of the machine.

 The peal has support cones for fastening the sleeve of the roll and the brake motor, the cone holder is mounted on the bed.

 Knurling is a type of peripheral rewinder. It has a winding or rolling cylinder with a drive, support cones for clamping the roll sleeve mounted in a holder that is mounted on the bed with the ability to move in the horizontal plane and equipped with a clamping mechanism, for example hydraulic or pneumatic. The specified mechanism when the machine presses a roll of paper (wallpaper) to the surface of the winding cylinder or roll cylinder, driven by the drive rotation.

 Thus, the roll and roll are equipped with electric motors, which are necessary to ensure their operation.

 The aim of the invention is to reduce energy consumption and simplify the design of the device.

 In FIG. 1 shows a device for unwinding and winding a paper web on a printing machine, top view; in FIG. 2 is a diagram of a printing machine with a device for winding and unwinding a paper web.

 The device contains (Fig. 1) a bed 1, holders 2, 3, in which are mounted pair of supporting cones 4 and 5 for attaching the sleeves of paper rolls - cones 4 for wallpaper rolls (roll), cones 5 for paper rolls (peal). The holder 2 is mounted with the possibility of its reciprocating movement in the horizontal plane and is equipped with a clamping mechanism 6 - spring, hydraulic or pneumatic.

Holders 2 and 3 are installed in such a way that the distance l between the axes of the pairs of support cones 4 and 5 is equal to the average value of the sum of the radii r _cp1 and r _{cp2 of} paper rolls (paper and wallpaper) when they are in the working position on the roll and roll, i.e. l = r _sr1 + + r _sr2 . The specified pre-installation of the holders 2 and 3 and the clamp mechanism 6, 4 connected with the holder 2, provide contact rolls of paper during operation of the device.

 The machine diagram (Fig. 2) shows the position of its main parts and the movement of the paper web. Positions 7 indicate the printing sections, position 8 - rollers, through which passes a sealed paper web (wallpaper) to roll.

 The device operates as follows.

 A roll of paper with a sleeve is mounted on a pair of support cones 5, and a sleeve is mounted on a second pair of cones 4.

 During the operation of the machine, the paper web passes from the roll through pairs of a plate cylinder — the printing shaft of all the printing sections of the machine. After the exit of the sealed paper web (wallpaper) from the machine, it is returned to the device for unwinding and winding with the help of paper-conducting rollers 8. The paper web (wallpaper) is wound on a sleeve mounted on the support cones 4. Using the clamp mechanism 6, the surfaces of the paper rolls and the wallpaper are contacted and the circumferential force is created between the surfaces of the rolls. The winding density is controlled by the linear pressure between the rolls created by the clamping mechanism.

 The pulling force required for the operation of the device is created by the electric motors of the pulling rollers and the printing sections. The device itself for unwinding and winding motors does not.

 The use of the proposed technical solution reduces energy costs and simplifies the design of the device for unwinding and winding paper web on a printing machine.

Claims (1)

 DEVICE FOR UNLOADING AND WINDING A PAPER WEAVE ON A BINDING MACHINE, comprising a bed, a holder with paired support cones for fastening the paper roll sleeves, one of the holders is mounted with the possibility of reciprocating movement in a horizontal plane and equipped with a clamping mechanism, characterized in that, for the purpose to reduce energy consumption and simplify the design, the holders installed on the bed are made so that the distance between the axes of the pair of cones is equal to the average value of the sum of the radii of the paper rolls when their working position on winding and unwinding, the zones of which are combined.

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