SU1638231A1 - Moving fibrous material cross cutting device - Google Patents

Abstract

The invention relates to the cutting of a moving textile material and makes it possible to improve the quality of cutting by ensuring the movement of the cutting and supporting organs in parallel planes and in antiphase. In the device, the cutting and supporting bodies are made in the form of flat rocker-rod-connecting rod-like starters. The supporting and cutting organs are connected in parallel and interact through a rigid kinematic connection in the lead of the coring-rocker mechanism. Both bodies have a single linear actuator. The cutting element is designed as a set of circular knives. 2 Il.

Description

 The invention relates to textile and light industry, in particular, to devices that provide for the cross-cutting process of a moving web, for example, in the final stage of forming a roll. leather and film materials.

The purpose of the invention is to improve the quality of cutting by ensuring that the cutting and supporting bodies move in parallel planes and in antiphase.

FIG. 1 shows a kinematic diagram of the device; in fig. 2 - the same, in the extreme positions of its links ..

The device contains a cutting body 1, including a set of circular knives 2,

mounted in series on a horizontally positioned bracket 3 of the hinged four-link mechanism and having the ability to interact via mechanical transmission with electric drive 4, the bracket is placed on vertical rocker arms 5, one of which has a rigid kinematic connection by means of a beam-kulisny mechanism 6 with a body supporting the material, which is connecting rod 7 of another four-link hinge mechanism with the possibility of plane-parallel movement in a parallel plane and in ivofaze with respect to the cutting unit. The cutting and supporting bodies are connected in parallel and have the ability to interact through rigid kinematic communication - the rocker-rocker mechanism 6 with a single linear actuator 8, for example, a pneumatic cylinder.

(L

The device works as follows.

The web of fibrous material moves between the bracket 3 with a set of circular knives 2 and the connecting rod 7 of the supporting member in the extreme initial position (Fig. 2). In order to implement the cross-cutting process, an actuator is actuated — a linear pneumatic actuator 8, which provides movement of the bracket 3 with a set of circular knives 2 to the cutting zone, and a connecting rod 7, which supports the driving web. Moving to the cutting zone of the bracket 3 and the connecting rod 7 is carried out in antiphase in parallel planes synchronously by using a rigid kinematic connection in the form of a rocker-rocker mechanism 6 and a rocker arm 5.

The proposed device provides high quality transverse cutting of a continuously moving long fiber material, regardless of its structure, at a constant value of the web tension during the cutting process.

Claims (1)

Invention Formula A device for transverse cutting of a moving fibrous material, containing a cutting body with a drive for its rotation, located on a horizontal bracket, and a supporting body for a material with a drive for transverse displacement of the material, including a lever-slide mechanism, characterized in that, in order to improve the quality of cutting by the movement of the cutting and support bodies in parallel planes and in antiphase, the bracket is placed on the vertical arms of one of which from the side of the drive of the support body on with the scenes.