SU891457A1

SU891457A1 - Apparatus for cutting out film material

Info

Publication number: SU891457A1
Application number: SU792845825A
Authority: SU
Inventors: Повилас Прано Валантинас; Михаил Иванович Жабко
Original assignee: Акмянский Комбинат Строительных Материалов
Priority date: 1979-10-17
Filing date: 1979-10-17
Publication date: 1981-12-23

Description

(5) УСТРОЙСТВО ДЛЯ РАСКРОЯ ПЛЕНОЧНОГО МАТЕРИАЛА(5) DEVICE FOR CUTTING FILM MATERIAL

1one

Изобретение ртноситс к производст ву полимерно-дегте-битумной пленки и может найти применение в промышленности строительных материалов.The invention is related to the production of tar-bitumen film and can be used in the building materials industry.

Известно устройство дл раскро листового материала, содержащее раму с валками, дисковые ножи, прижим лис,тового материала и механизм протаскивани tOНедостатком конструкции вл етс невысокое качество обрезаемых кромок полимерно-дегте-битумных пленок, обусловленное значительным сминанием этих кромок.A device for cutting sheet material is known, which contains a frame with rollers, circular knives, clamps, material, and a pull-down mechanism. The disadvantage of the design is the low quality of the cut edges of tar-tar films caused by significant crushing of these edges.

Наиболее близким к предлагаемому по технической сущности и достигаемому эффекту вл етс устройство дл раскро пленочного материала, содержащее смонтированные на основании дисковые ножи, установленные на валах один под другим с возможностью осевого перемещени одного из них к другому, и расположенные до и пос|ИСковых ножей отклон ющие валидиск The closest to the proposed technical essence and the achieved effect is a device for cutting film material containing disc knives mounted on the base, mounted on the shafts one above the other with the possibility of axial movement of one of them to the other, and the deviation validisk

ле 12.le 12

Недостатком этого устройства вл етс сложна система слежени и коррекции отклонени от заданной направленности резки, обусловленна наличием трех фотодатчиков, усилителей и исполнительных механизмов соответствующего осевого перемещени дисковых ножей. Кроме того, при резке известiio ным устройством полимерно-дегте-битумных пленок обрезаемые кра имеют резко выраженную см тую форму, что, в свою очередь, значительно снижает качество готового издели . A disadvantage of this device is a complex system for tracking and correcting deviations from a given directivity of cutting, due to the presence of three photosensors, amplifiers and actuators of the corresponding axial movement of the circular knives. In addition, when cutting a tar-bitumen films with a lime cutting device, the cut edges have a pronounced smut shape, which, in turn, significantly reduces the quality of the finished product.

itsits

Цель изобретени - обеспечение выравнивани обрезанных краев плен ,ки.The purpose of the invention is to provide alignment of the cut edges of the film, ki.

Claims

The goal is achieved by the fact that the device for cutting the film material contains disk-mounted mounts mounted on the shafts one above the other with the possibility of axial movement of one of them to the other, and deflection rollers located before and after the circular knives, provided with spring-loaded rollers, mounted over the ends of the deflection roller located after the circular knives. FIG. 1 given the device, a cross-section; in fig. 2 shows section A-A in FIG. . The device consists of a series of parallel rollers - deflecting 1 and slave 2, with detachable disk knives 3 symmetrically arranged and fixed on it, deflecting roller C with a counter 5 counting the trimmed web 6 of the tar-bitumen film. Above the ends of the roller 4, by means of the levers 7, the rollers 8 are mounted, spring loaded 9 with a screw 10. Under the lever 7. there is a rotary roller 11 with eccentrics 12. Under the roller 2 there is a drive roller 13 with floating disk knives symmetrically mounted on it 14 , the inner ends of which are pressed to the ends of the knives 3 in the process. The clamping force floating knives 1k receive from Haen 15 by means of a spring 16. The device operates as follows. As it winds on the receiving coil located behind the device, the film passes between the roller 2 and the spindle roller 13, as well as between the deflecting roller A with the counter 5 and the pressure rollers 8. At the same time, the edges of the sheet 6 are not even on both sides. are cut in the form, of the trim 17, which, 7. 4 pads under the device are recycled. The cut off part of the blade 6, due to the increased rotational speed of the knives 14, obtained from a separate drive, in relation to the rotational speed of the knives 3, which receive rotation from the contact between the roller 2 and the blade 6, has a very high-quality cut edge on the sides. When the edges of the blade 6 fall between the roller 4 and the rollers 8, it is additionally straightened and the indentations that occur along the indentation edges are corrected. Apparatus of the Invention A device for cutting film material comprising disk knives mounted on a base, mounted on shafts one above the other with the possibility of axial movement of one of them to the other, and deflection rollers arranged before and after the disk knives, in order to provide aligning the cut edges of the film; the device is provided with spring-loaded rollers mounted over the ends of the deflection roller located after the circular knives. Sources of information taken into account during the examination 1. USSR author's certificate No. 158863, cl. B 26 D 1/20, 1963.

2. USSR author's certificate number 204969, cl. B 26 D 1/20, 1964 (Prototy. П).