SU876482A1

SU876482A1 - Die for blanking articles from rubber

Info

Publication number: SU876482A1
Application number: SU802868939A
Authority: SU
Inventors: Александр Анатольевич Ивакин; Анатолий Петрович Ивакин; Александр Данилович Муханов
Original assignee: за вители
Priority date: 1980-01-15
Filing date: 1980-01-15
Publication date: 1981-10-30

Description

(54) ШТАМП ДЛЯ ВЫРУБКИ ДЕТАЛЕЙ ИЗ РЕЗИНЫ(54) STAMP FOR CUTTING DETAILS FROM RUBBER

, Изобретение относитс к механической обработке материалов, а именно к штамповке резиновых деталей. The invention relates to the machining of materials, namely the stamping of rubber parts.

Известен штамп-просечка дл резиновой шайбы, котбрый состоит из двух цилиндрических ножей, образуюших наружный и внутренний контуры издели , и выталкивателей удал ющих изделие и центральный отход. Эти детали прикреплены винтами к хвостовику, внутри которого находитс пружина, привод ща в действие выталкиватели (1.A notch stamp for a rubber washer is known, which consists of two cylindrical knives forming the outer and inner contours of the product, and the ejector that remove the product and the central waste. These parts are screwed to the shank, inside which there is a spring, which actuates the ejectors (1.

Недостатком указанного штамП1а просечки вл етс то, чТо вследствие деформации резины, издели получаютс некачественными снеполной .вырубкой по периметру и просечки быстро притупл ютс , малостой . ки., -. ...;.,-.;;--:The disadvantage of this puncturing strain is that, due to the deformation of the rubber, the products turn out to be poor-quality, incomplete cutting along the perimeter, and the notches quickly become dull, low cost. ki., -. ...;., -. ;; -:

Наиболее близким, к предлагаемому вл етс штамп дл вырубки деталей из резины , который содержит матрицу с выталкивателем , вырубной пуансон, подпружиненный съемник и просечной пуансон |2|. Недостаток указанного штампа заключаетс в том, что вследствие большой эластичности штампуемого материала и нахождени его при штамповке в раст нутом и на-.The closest to the present invention is a stamp for cutting parts from rubber, which contains a die with a pusher, a cutting punch, a spring-loaded puller and a cutting punch | 2 |. The disadvantage of this stamp is that, due to the high elasticity of the material being stamped and being in stamping, stretched and naked.

пр женном состо нии между съемником и прижимнь1м выступом, детали получаютс , низкого качества с отклонением формы контура и отверсти , неровностью среза особенно резины большой толщины.the spine between the puller and the pressing protrusion, the parts are of poor quality with deviation of the shape of the contour and the hole, the roughness of the cut especially rubber thicker.

Цель изобретени - устранение деформации вырубаемого материала дл повышени качества вырубаемых деталей.The purpose of the invention is to eliminate the deformation of the material being cut to improve the quality of the parts being cut.

Поставленна цель достигаетс тем, что в штампе дл вырубки деталей из резины содержащем матрицу с выталкивателем вырубной пуансон, подпружиненный съем10 ник и просечной пуансон, просечной пуансон выполнен выступающим над рабочей поверхностью матрицы, а съемник снабжен смонтированными по его кра м ограничител ми , выступающими над рабочей поверхностью съемника, причем высота, на ко-f The goal is achieved by cutting a piece of rubber with a die with a pusher, a punch cutter, a spring-loaded picker and a punching die, a punching punch protruding above the working surface of the die, and the puller is provided with edge-mounted at its edges surface remover, with height, on co-f

5 торую выступают просечной пуансон и съемник , соответствует толщине вырубаемого материала.5 toroy stand punching punch and puller, corresponds to the thickness of the cut material.

На чертеже изображен предлагаемый штамп.The drawing shows the proposed stamp.

Штамп дл вырубки деталей из резины Stamp for cutting rubber parts

Claims

20 consists of a bottom plate G, on which are fixed through a gasket 2 a cutting punch 3 e with a spring-loaded puller 4 and guide columns 5, a yerkhaya plate b on which a matrix 7 with a micro punch 8, an ejector 9, a punch holder 10, a cross beam 11 s pushers 12 spring 13, rod 14 and guide bushings 15, shank 16. Puller 4 siab. wedges 17 mounted on its edges, protruding above the working surface of the puller. The cutting punch 6 is made protruding above the working surface of the die 7. The height to which the cutting punch 8 and the puller 4 protrude matches the thickness of the material being cut. :. The stamp works as follows. When the working parts of the punch are closed, the limiters 17 are in contact with the working end of the matrix 7, leaving the strip of rubber free to lie on the surface; nnka 4, as if ahead of its pressing and deformed. The punch 8 pierces the hole of the part, pushing the rubber waste into the expanded part of the hole. During the further course, the material being forged is pressed only by the ejector 9, due to the weak spring 13, i.e. only that part which is to be cut. At the same time, the material being forged is not stretched and re-strained, but lies freely on the working end of the cutting punch 3. In this condition of the material being forged, the cutting of parts is carried out. At the end of the punching of the material being stamped, a piece of regular shape is obtained with equal cut edges. When such a die is removed, the finished part is easily separated from the die by the strip and ejected from the die by the ejector 9, and the ejected parts can be removed from the working zone of the die by air blow. The proposed noaf die design improves the quality of Ley being cut down, since the rubber material does not deform, lies on. The puller is not pressed loosely but only leveled. DETAILED DESCRIPTION OF THE INVENTION A rubber dies die cutter comprising a die with a pusher, a spring-loaded puller. - - KJ and a slit punch, characterized in the puller is provided with limiting devices mounted along its edges protruding above the working surface of the puller, and the height to which the notched punch and the puller protrude corresponds to the thickness in Cutting material .; Information sources,. . Taken into account in the examination; . I. Smirnov-Al. G. A. and others. Cold, stamping in instrument making. M., Mashgiz. 1950, p. 226.

2. USSR author's certificate number 418338, cl. In 29 N 3/06, 1972 (prototype) -.