SU837868A2

SU837868A2 - Hydraulic press

Info

Publication number: SU837868A2
Application number: SU792706956A
Authority: SU
Inventors: Иван Михайлович Суглобов
Original assignee: Suglobov Ivan M
Priority date: 1979-01-03
Filing date: 1979-01-03
Publication date: 1981-06-15

Description

1one

Изобретение относитс к промьашленности строительных материалов и может быть использовано в огнеупорной промышленности, в частности при прессовании стгшеразливочных стаканов с обратным конусом.The invention relates to the production of building materials and can be used in the refractory industry, in particular in the extrusion of steaming glasses with a reverse cone.

По основному.авт.ев. № 6Б2350 известен гидравлический пресс, содержащий соединенные с горизонтально подвижным пуансоном и группой силовых цилиндров привода блок-матрицы, блок-пуансона, центрального формового знака и блока внутреннего пуансона , прикрепленные соответственно к верхней, траверсе и блоку внутреннего пуансона направл ющими штангами , а блок внутреннего пуансона жестко соединен со штоком главного силового цилиндра и смонтирован на колоннах, причем блок-матрица смойтирована на. направл ющих штангах ijf.According to the main avtov.ev. No. 6B2350 is known for a hydraulic press comprising connected to a horizontally movable punch and a group of power cylinders of a drive matrix die, a block punch, a central mold plate and an inner punch block, respectively attached to the top, traverse and the inner punch block by guide rods, and the inner block the punch is rigidly connected to the rod of the main power cylinder and mounted on the columns, the block matrix being simulated on. guide bars ijf.

Недостатком данного пресса вл етс низка производительность.The disadvantage of this press is low productivity.

Цель изобретени - повышение производительности .The purpose of the invention is to increase productivity.

Поставленна цель достигаетс тем, что гидравлический пресс снабже системой управлени , выполненной в виде основного двухпозиционного распределител и вспомогательных распределителей , соединенных с ним, а также клапанов наполнени и сообщенного с ним трубопроводами обр атного клапана, причем один из вспомогательных распределителей соединен со штоковымй полост ми силовых цилиндров блока-пуансона, а другой - с поршневыми полост ми силовых цилиндров блока-матрицы и поршневыми полост ми блока-пуансона, причем последние соединены через обратный клапан с полостью главного цилиндра и с клапаном наполнени .The goal is achieved by the fact that the hydraulic press is supplied with a control system made in the form of a main on-off distributor and auxiliary distributors connected to it, as well as filling valves and a return valve communicated with it, one of the auxiliary distributors connected to the rod end of power the cylinder of the block punch, and the other with the piston cavities of the power cylinders of the block matrix and the piston cavities of the block punch, the latter being connected ithout a check valve to the cavity of the main cylinder and the valve filling.

На чертеже схематически изображен предлагаегл 1й пресс.The drawing shows schematically the proposed 1st press.

Пресс содержит верхнюю траверсу 1 и нижнюю траверсу 2, выполненную заодно с главным цилиндром 3, колонны 4, а на колоннах 4 подвижно в осевом направлении смонтирована плита внутреннего пуансона 5, котора жестко соединена с плунжером 6, в котором жестко смонтирован поршневой цилиндр 7, шток которого соединен с центральным формовым знаком 8. На траверсе 2 жестко смонтированы пор иневые цилиндры 9 привода блок-матрицы Ю, котора жестко соединена со штоками 11. Кроме этого, на траверсе 2 жестко смонтированы поршневые цилиндрыThe press contains the upper yoke 1 and the lower yoke 2, made integral with the master cylinder 3, columns 4, and on the columns 4 the plate of the internal punch 5 is mounted in axial direction, which is rigidly connected to the plunger 6, in which the piston cylinder 7 is rigidly mounted which is connected to the central tin mark 8. On the traverse 2, the pinion cylinders 9 of the drive matrix Yu are rigidly mounted, which is rigidly connected to the rods 11. In addition, piston cylinders are rigidly mounted on the traverse 2

12 привода плиты 13 блок-пуансона 14. Плита 13 жестко соединена со штками 15 цилиндров 12. Рабоча площадь штоковых полостей 16 цилиндров 12 равна рабочей площади поршневых полостей 17 цилиндров 9, Все указан1 ные узлы, за исключением цилиндра 7 центрального формового знака 8, с источником-питани в виде насоса 18 переменной производительности через главный распределитель 19. Двухпозиционный распределитель 20 соедин ет с главным распределителем через вспомогательный распределитель 21, штоковые полости 16 цилиндров 12 и поршневые полости 17 цилиндров 9. Клапан 22 наполнени размещен выше уровн цилиндра 3 и соединен с ним линией 23, а через клапан24 обратный управл ег ий посредством линии 25 соединен с поршневыми полост ми цилиндров 12. На линии 26 размещен клапан 27 предохранительный , на линии 28 управ- лени размещены клапана 29 и 30 обратные.12 of the drive plate 13 of the block punch 14. The plate 13 is rigidly connected to the pins 15 cylinders 12. The working area of the rod cavities 16 cylinders 12 is equal to the working area of the piston cavities 17 cylinders 9, All indicated nodes, except for the cylinder 7 of the central tin mark 8, s a power source in the form of a variable-capacity pump 18 through the main valve 19. The two-position valve 20 connects to the main valve through the auxiliary valve 21, the rod end 16 of the cylinder 12 and the piston cavity 17 of the cylinder 9. Filling valve 22 is located above the level of cylinder 3 and is connected to it by line 23, and through valve 24 the reverse control is connected to piston cavities of cylinder 12 via line 25. Safety valve 27 is placed on line 26, and control line 28 is located valve 29 and 30 are reverse.

Система управлени гидравлически прессом работает следующим образом.The control system of the hydraulic press works as follows.

Блок-матрица 10 заполн етс массой 31 посредством весового дозатора 32 и воронок 33 и 34, опора 35 с пуансоном; 36 устанавливаютс на позицию прессовани и формовый знак 8 совершает ход вверх. Включаютс электромагниты 37-39 и рабоча жидкость от насоса 18, дающего при это максимальную производительность, через распределитель 19, подвод 25 подаетс в поршневые полости цилиндров 12, а из штоковых полостей цилиндров 12 по подводу 40 через распределители 19-21 и по подводу 41 рабоча жидкость подаетс в поршневые полости 17 цилиндров 9, а так как рабочие площади .полостей 16 и 17 выполнены равныг/ш, то блок-пуансоны посредством соответствующих силовых элементов и блок-матрица 10 соверщают синхронное перемещение вверх, осуществл при этом первую ступень прессовани . При этом осуществл етс относительное внедрение пуансона 36 ов бЛок-матрицу 10 без относительного перемещени пуансоно и блок-матрицы 10. Из штоковых полотей цилиндров 9 по подводу 42 рабоча жидкость идет через распределитель 21 на слив,а по подводу 23 осуществл етс свободное заполнение полости главного цилиндра 3 посредством открытого при этом клапана 22 наполнени . Из поршневой полости цилиндра 7 с определенным подпором рабоча жидкость идет на слив, а штокова полость цилиндра 7 свободн заполн етс , центральный формовый знак 8 при этом находитс в жестком контакте с пуансоном 36. Перва ступень прессовани осуществл етс доThe block matrix 10 is filled with a mass 31 by means of a weighing dispenser 32 and funnels 33 and 34, a support 35 with a punch; 36 is set to the pressing position and the shape mark 8 moves upward. The electromagnets 37-39 and the working fluid from the pump 18, which gives maximum performance, are turned on through the distributor 19, the inlet 25 is supplied to the piston cavities of the cylinders 12, and from the rod end of the cylinders 12 through the inlet 40 through the distributors 19-21 and in the inlet 41 the fluid is supplied to the piston cavities 17 of the cylinders 9, and since the working areas of the cavities 16 and 17 are equal to / p, the block punches make upward synchronous movement by means of the corresponding power elements and block matrix 10. Stage of pressing. In this case, the relative insertion of the punch 36 of the block matrix 10 without relative movement of the punch and the block matrix 10 is carried out. From the rod stocks of the cylinders 9 through the supply 42, the working fluid flows through the distributor 21 to drain, and through the supply 23 the free filling of the main cavity takes place the cylinder 3 by means of the filling valve 22 opened at the same time. From the piston cavity of the cylinder 7 with a certain support, the working fluid goes to drain, and the rod cavity of the cylinder 7 is free to fill, the central mold mark 8 is in hard contact with the punch 36. The first step of pressing is carried out

Claims

full implementation of the punch 36 and the block block hard stop on the support 35. In the second stage of pressing, only one electromagnet 37 is turned on and the working fluid will continue to flow from the pump 18 (giving a maximum to average 7 through the distributor 19, supply 25 to the piston the cavity of the cylinder 12, and the block-punches by means of the corresponding power elements make a synchronous movement up to the stop first in the block-matrix 10. At the same time, the working fluid from the rod end of the cylinder 12 to supply 40 through the distributors 19 and 20 is drained. After that, as the external block-piston is moved up to the block matrix 10, a control system fluid is fed into the 24-control return valve through the valve 28 through the check valve 29, which opens and the working the liquid enters through inlet 25, through valve 24, through inlet 23 into head Htaf (cylinder 3, and the internal block-punch moves upward against the block matrix 10 by means of corresponding power stops. When this valve 22 filling is closed. The third stage of extrusion is completed - pressing the product to its height. At the end of the extrusion of the product, the electromagnet 43 is turned on, at the same time the control fluid through the inlet 34, through the check valve 30 flows into the valve 24 and controls the return valve, opens it, and the working fluid from the pump 18 through the distributor 19, the feed 40 enters the rod end 16 of the cylinder 12, block punches internal and external with a product make the course down. The inner block makes a stroke downward until the plunger stops in the bottom of the main cylinder, the outer blocking block moves downward until the product is completely released. From the main cylinder 3, the liquid through the inlet 23 through the open filling valve 22 goes to the drain, and from the piston cavities of the cylinders 12 through the inlet 25 the liquid goes to the drain through the valves 19 and 20 and respectively through the valves 24 and 22. After this, the zatral form sign 8 makes full stroke down and takes its lower position, and the block matrix 10 remains in its upper position. This position of the pressing elements corresponds to the complete release of the product, which is removed from the pressing zone. After the product is removed from the press zone, the electromagnet 37 is turned on and the working fluid from the pump 18 goes through the distributor 19 through the inlet 25 into the piston cavities of the cylinders 12, and from the rod end of the cylinders through the inlet 40 through the distributors 19 and 20 the liquid goes to the drain . The outer outer punch moves upward into the backfill position. After that, electromagnets 38 and 45 and working fluid from pump 1B are turned on via distributors 20 and 21 through supply 42 and jTiCH to rod spaces of cylinders 9, and from piston cavities of cylinders 9 through supply 41 through distributor 21, the liquid goes to drain, block matrix 10 performs move down to the backfill position. The refractory mass 31 is poured into the block matrix 10, and the cycle is repeated. This hydraulic press control system improves productivity. Claims of the invention Hydraulic press according to auth.St. No. 662350, characterized in that, in order to increase productivity, it is equipped with a control system made in the form of a main two-way distributor and auxiliary valves connected to it, as well as a filling valve and communicated with it by non-return valve pipelines with the rod cavities of the power cylinders of the block-punch, and the other with the piston cavities of the power cylinders of the block-matrix and piston cavities of the block-punch, the latter Inen through the check valve, with the main cylinder cavity and the filling valve. Sources of information taken into account in the examination. 1. USSR author's certificate 662350, cl. B 28 B 3/04, 1977.