SU759326A1 - Mandrel for widing web materials - Google Patents

Description

The invention relates to a device for winding coiled materials that can be used in the chemical, textile and paper industries.

Famous mandrel for winding roll materials, comprising a split housing made of two parts, an elastic shirt and a shank located inside the housing (1) ;.

A disadvantage of the known mandrel is the inconvenience in operation, which ultimately affects performance.

The aim of the invention is to increase productivity.

This goal is achieved by the fact that the mandrel is provided with a spring-loaded tapered shank mounted coaxially with the mandrel body with the possibility of axial movement, and both parts of the housing are connected by an axis fixed in the shank and connected to the tapered shank by a hollow rod.

FIG. 1 shows the mandrel, a general view; in fig. 2 is a section A-A in FIG. one; in fig. 3sec BB in FIG. one; Fig, 4 - section

2

B-B in FIG. 1, when winding; in fig. 5 the same at the time of removal.

The mandrel includes a shank 1 with a flange 2, connected to a movable conical shank 3 by a central rod 4, at the end of which there are a restrictive pin 5 and a spring 6.

The body of the mandrel consists of two halves 7 with an elastic jacket 8, duplicated with these halves, which are connected by an axis 9. The spacers 10 tend to bring the halves of the body closer, turning them around the axis 9. The roll 11 of the wound Material is shown in the working position.

The mandrel is used as follows.

When installed in the center of rotation of the winding machine under the action of the axial force of the pneumatic center, the shank 3, overcoming the resistance of the spring 6, slides along the rod 4 to the restrictive pin 5, pushing half of the body 7 with its conical part. As a result, the mandrel acquires the largest size in diameter and is ready for winding. Material.

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After winding the material into the roll 11, it happens ^{4 it} goes cutting it into rings of the required width with any cutting tool for a given

'depth' to 'plunging into the shirt £>, since it acts as a lining. When the mandrel is removed from the centers of rotation, the shank 3 under the action of the spring 6 moves to the end of the rod 4 to the restrictive pin 5. The housing half-holes 7 approach each other under the action of the springs 10, and the mandrel acquires the smallest diameter. Due to this, a gap appears, and the mandrel is freely removed from the roll by any known method - manual

7 or mechanical.

The invention allows to increase productivity.

H 1

759326

four

Claims (1)

Mandrel for winding roll materials, containing a detachable body made of two parts, an elastic shirt and a shank located inside the case, about ⁵ and ⁵ so that, in order to increase productivity, the mandrel is provided with a spring-loaded tapered shank mounted coaxially with the body of the mandrel with the possibility of axial movement, and both parts of the body are connected by an axis fixed in the shank and connected by a hollow rod with a tapered shank.