SU996032A1

SU996032A1 - Hot forming press bottom ejector

Info

Publication number: SU996032A1
Application number: SU813281191A
Authority: SU
Inventors: Валерий Николаевич Горожанкин; Александр Тимофеевич Крук; Петр Николаевич Высоцкий; Иван Никанорович Филькин
Original assignee: Воронежское производственное объединение по выпуску тяжелых механических прессов "Воронежтяжмехпресс"
Priority date: 1981-04-28
Filing date: 1981-04-28
Publication date: 1983-02-15

Description

(54) НИЖНИЙ ВЫТАЛКИВАТЕЛЬ ГОРЯЧЕШТАМПОВОЧНОГО(54) LOWER EXTRACTOR OF HOT SPARE

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Изобретение относитс к машиностроению , а именно к конструкции гор чештамповочных прессов.The invention relates to mechanical engineering, namely to the construction of mountains of stamping presses.

Известен нижний выталкиватель гор чештамповочного пресса, содержащий смонтированный в его столе толкатель, св занный рычажной системой с- приводным пневмоцилиндром 1).The lower pusher of the mountains of a stamping press is known, which contains a pusher mounted in its table and connected by a lever system with a driven pneumatic cylinder 1).

Недостатком известной конструкции вл етс ограниченные технологические возможности пресса, так как конструкци не обеспечивает регулирование скорости перемещени толкател .A disadvantage of the known construction is the limited technological capabilities of the press, since the structure does not provide for the regulation of the speed of movement of the pusher.

Цель изобретени - расширение технологических возможностей пресса путем регулировани скорости подъема толкател .The purpose of the invention is to expand the technological capabilities of the press by adjusting the speed of lifting the pushers.

Поставленна цель достигаетс тем, что нижний вы;галкиватель гор чещтамповочного пресса, содержащий смонтированный в его столе толкатель, св занный рычажной системой с приводным пйевмоцилиндром, снабжен гидравлическим устройством торможени штока пневмоцилиндра, выполненным , в виде заполненного жидким агентом и св занного с источником сжатого воздуха резервуара, установленного на егоThe goal is achieved by the fact that the lower rider of a hot-pressing press containing a pusher mounted in its table, connected by a lever system to a powered pylevmotslinder, is equipped with a hydraulic braking rod of the pneumatic cylinder, made in the form of a liquid agent and connected to a source of compressed air tank installed on its

ПРЕССАPRESS

крышке полого плунжера с дренажным отверстием , закрепленного на резервуаре и размещенного на последнем против дренажного отверсти дроссел , причем в штоке пневмоцилиндра выполнена полость дл размещени упом нутого плунжера.a cover of a hollow plunger with a drainage hole fixed on the reservoir and placed on the latter against the drain hole of the throttle, and in the pneumatic cylinder stem there is a cavity for accommodating the said plunger.

На фиг. 1 изображен нижний выталкиватель гор чештамповочного пресса, общий вид; На фиг. 2 - разрез А-А на фиг. 1.FIG. 1 shows the lower ejector of the mountains of a stamping press, general view; FIG. 2 shows section A-A in FIG. one.

Нижний выталкиватель содержит смон10 тированный в столе 1 пресса толкатель 2, св занный рычажной системой 3 с приводным пневмоцилиндром 4, который состоит из корпуса 5, поршн 6, и сочлененного с ним щтока 7. На крышке 8 пневмоцилиндра 15 4 с помощью эластичного элемента 9 установлен резервуар 10, к которому прикреплен полый плунжер 11 с дренажным отверстием . 12.The lower ejector contains a pusher 2 mounted in the table of the press 1, connected by a lever system 3 to a driving pneumatic cylinder 4, which consists of a body 5, a piston 6, and an articulated rod 7 with it. On the cover 8 of the pneumatic cylinder 15 4 tank 10, to which is attached a hollow plunger 11 with a drainage hole. 12.

На резервуаре 10 против дренажного 20 отверсти 12 установлен дроссель 13.On the tank 10 against the drainage hole 20 12 is installed choke 13.

В штоке 7 выполнена полость 14 дл размещени полого плунжера 11.In the stem 7, a cavity 14 is provided to accommodate the hollow plunger 11.

Claims

The tank 10, the hollow plunger 11 and the cavity B of the rod 7 is filled with a liquid agent. wherein the reservoir is permanently connected to a compressed air source (not shown). The lower ejector mountains stamping press works as follows. After the press performs a working operation, the compressed air is supplied to the pneumatic cylinder 4 under the piston 6, which begins to move upwards together with the rod 7, which lifts the pusher 2 through the lever system 3. When the rod 7 moves, the remaining stationary hollow plunger 11 displaces the liquid 10 through the drainage hole 12. The lifting speed of the rod 7 at the same time remains constant throughout the entire course of the stroke, both before and after the forging of the punch die. The piston 6 is raised to the stops 15. The throttle 13 regulates the size of the cross section of the drainage hole 12 and, consequently, the speed of lifting of the pusher

2. By adjusting the lifting speed of the pusher 2, the forging is not ejected by the ejector from the die of the punch, but rises smoothly into the gripping zone of automation equipment. In addition, the speed control ensures the work of the ejector together with the automation in a given cycle. After the grippers of the automation equipment have taken the forging to transfer the stamp to the next stream, the compressed air is discharged from the cavity under the piston 6, which, under its own weight and the weight of the rod 7, of the lever system 3 and the pusher 2, is lowered to the rest position 16. Then the cycle of operation of the lower ejector repeats. The technical and economic effect of the implementation of the proposed invention is achieved by expanding the technological capabilities of the press. The invention The lower ejector of a press stamping press containing a pusher mounted in its table, connected by a lever system with a driving pneumatic cylinder, is characterized in that, in order to expand the technological capabilities of the press by adjusting the lifting speed of the pusher, it is equipped with a hydraulic braking device of the pneumatic cylinder made in the form of a tank filled with a liquid agent and connected to a source of compressed air, mounted on its cover of a hollow plunger with drainage hole, fixed to the tank and located on the latter against the drain opening of the throttle, wherein the cavity is formed in the rod of the air cylinder for receiving said plunger. Experts of information taken into account during the examination 1. A. Ignatov, T. Ignatova, Mountain crank-stamping presses. M., “Mechanical Engineering, 1974, p. 74-75 (prototype).

And 10

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