SU965774A2

SU965774A2 - Contour cutting blade for helical chip cutting machines

Info

Publication number: SU965774A2
Application number: SU813296801A
Authority: SU
Inventors: Николай Денисович Гребенников
Original assignee: Воронежский Ордена Дружбы Народов Лесотехнический Институт
Priority date: 1981-05-20
Filing date: 1981-05-20
Publication date: 1982-10-15

Description

Изобретение относится к инструментам для спиральных рубительных машин и может быть использовано в деревообрабатывающей промышленности.The invention relates to tools for spiral chippers and can be used in the woodworking industry.

По основному авт. св. №459549 известен контурный режущий нож для спиральных рубительных машин, выполненный в виде пластины корытообразной формы с длинными режущими кромками и двумя парами противоположно расположенных коротких режущих кромок и крепежным пазом [1J. .According to the main author. St. No. 459549 known contour cutting knife for spiral chippers, made in the form of a trough-shaped plate with long cutting edges and two pairs of oppositely located short cutting edges and a mounting groove [1J. .

Однако такой нож не обеспечивает устойчивости заготовки при резании.However, such a knife does not ensure the stability of the workpiece during cutting.

Цель изобретения - повышение устой чивости заготовки при резании.The purpose of the invention is to increase the stability of the workpiece during cutting.

Цель достигается тем,, что на свободных концах противоположно расположенных режущих кромок смонтированы пластины, которые закреплены параллельно длинным режущим кромкам.The goal is achieved by the fact that on the free ends of the opposing cutting edges mounted plates that are fixed parallel to the long cutting edges.

На фиг. 1 изображен нож, вид спереди; на фиг. 2 - то же, вид сверху..In FIG. 1 shows a knife, front view; in FIG. 2 - same, top view ..

Нож включает длинные режущие кромки 1, две пары коротких режущих кромок - правых 2, левых 3 и поддерживающих пластин 4.The knife includes long cutting edges 1, two pairs of short cutting edges - right 2, left 3 and supporting plates 4.

Режущий нож работает следующим образом.The cutting knife operates as follows.

В процессе резания пластины 4, рас положенные над режущими кромками, под держивают бревно и создают прижим к ножу.In the process of cutting, the plates 4, located above the cutting edges, hold the log and create a clamp to the knife.

Срезаемая щепа проходит в зазор S между поддерживающей пластиной и ножом, Степень обжима зависит от соотношения размеров зазора S и толщины щепы.The chips being cut go into the gap S between the supporting plate and the knife. The degree of crimping depends on the ratio of the gap sizes S and the thickness of the chips.

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Claims

The invention relates to tools for spiral chippers and can be used in the woodworking industry. According to the main author. St. A contour cutting knife is known for spiral chippers; they are made in the form of a plate of a trough shape with long cutting edges and two pairs of oppositely located short cutting edges and a mounting groove C1J. , However, this knife does not provide stability of the workpiece during cutting. The purpose of the invention is to increase the stability of the workpiece during cutting. The goal is achieved by the fact that plates are mounted on the free ends of the opposite cutting edges, which are fixed parallel to the long cutting edges. FIG. 1 shows a knife, view. in front; ya fig. 2 - the same, top view. The knife includes long cutting edges 1, two pairs of short cutting edges - right 2, left 3 and 1 supporting plates k. The cutting knife works as follows. During the cutting process, the plates k located above the cutting edges support the log and create a clamp to the knife. Shear chips pass into the gap S between the support plate and the knife. The degree of crimping depends on the ratio of the dimensions of the gap S and the thickness of the chips. . - I Claims of the invention Contour cutting knife for spiral chippers according to ed. St. No. 4595 9, characterized in that, in order to increase the stability of the workpiece during cutting, on free

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the opposite ends of the located sources of information

short cutting edges are mounted taken into account in the examination of the plate, which are fixed in parallel. 1. Copyright certificate. The USSR has long cutting edges. № «595 9, cl. B 27 L P / 02, 1973.