SU929285A1

SU929285A1 - Apparatus for blanking parts from flat material

Info

Publication number: SU929285A1
Application number: SU802993743A
Authority: SU
Inventors: Анатолий Сергеевич Кривовязюк
Priority date: 1980-10-10
Filing date: 1980-10-10
Publication date: 1982-05-23

Description

Изобретение относится к холодной обработке листовых материалов и может быть использовано для вырубки заготовок из плоского материала.The invention relates to cold processing of sheet materials and can be used for cutting blanks from flat material.

Известно устройство для вырубки заготовок из плоского материала, со- ⁵держащее пресс, каретку, установленные на основании направляющие для перемещения каретки с резаками, связанную с кареткой зубчатую рейку, по меньшей мере, одну шестерню, входящую’ в зацепление с зубчатой рейкой, механизм выталкивания заготовок из каретки, выполненный в виде расположенной над кареткой подпружиненной в вер-_|5тикальном направлении и приводимый в движение в этом направлении от подвижной части устройства плиты, несущей выталкиватели, установленной с возможностью перемещения в направлении, па- _χралелльном перемещению каретки и снабженной закрепленным на ней с возможностью взаимодействия с кареткой упором и механизмом перемещения, выпол2 ненным в виде взаимодействующего с кареткой троса, один конец которого закреплен на плите, а другой связан с основанием П].A device for punching blanks out of a flat material con- ⁵ hold press carriage set on the basis of the guide to move the carriage with cutters associated with the carriage gear rack, at least one gear, the incoming 'into engagement with the rack, the ejection mechanism preforms from the carriage, configured as a spring-loaded carriage located above a ver- _{| 5} tikalnom direction and driven in the direction of the plate from the mobile device, carrier ejectors installed with poss zhnosti move in the direction _PA-χ ralellnom displacement of the carriage and provided with fixed on it able to cooperate with the carriage mechanism for moving and focusing, as vypol2 nennym interacting with the carriage a cable having one end fixed to the plate, and the other is connected to the base n].

Однако в известном устройстве механизм перемещения плиты имеет сложную конструкцию и недостаточно надежен в работе.However, in the known device, the mechanism for moving the plate has a complex structure and is not sufficiently reliable.

Наиболее близким по технической сущности и достигаемому эффекту является устройство для вырубки заготовок из плоского материала, содержащее пресс,закрепленную на нем втулку, смонтированную во втулке вертикальную колонку, свободно установленную на колонке дополнительную поворотную втулку, приводимую в движение от подвижной части пресса через преобразующий механизм, смонтированный на дополнительной втулке с возможностью перемещения в вертикальном направлении и подпружиненную в этом направлении каретку с резаками,расположенную над кареткой с возможностью перемещения • 3 в вертикальном направлении и подпружиненную в этом направлении плиту с выталкивателями, снабженную механизмом перемещения, и расположенный под кареткой с возможностью перемещения в _sвертикальном направлении и подпружиненный в этом направлении стол для укладки вырубленных заготовок, снабженный фиксатором, выполненным в виде подпружиненного рычага. Колонка ю устройства смонтирована во втулке с возможностью поворота, плита с выталкивателями и стол установлены на ко-, лонке, подпружиненный рычаг смонтирован на столе с возможностью взаимо- 15 действия с колонкой, каретка и плита подпружинены к прессу, механизм перемещения выполнен в виде закрепленного на втулке клина и смонтированного на плите с возможностью взаимодействия с ₂₀клином ролика, преобразующий механизм выполнен в виде.смонтированной на подвижной части пресса тяги, несущей шарнирно закрепленную собачку, установленный на втулке вал, несущий ры- 25 чаг, взаимодействующий с собачкой, и коническую шестерню, входящую в зацепление с другой конической шестерней, установленной на дополнительной втулке Г2 ]. _Зо The closest in technical essence and the achieved effect is a device for cutting blanks from flat material, containing a press, a sleeve fixed to it, a vertical column mounted in the sleeve, an additional rotary sleeve freely mounted on the column, driven from the movable part of the press through a conversion mechanism, mounted on an additional sleeve with the possibility of movement in the vertical direction and a spring-loaded carriage with cutters located in this direction, located above aretkoy movably • 3 in the vertical direction and spring loaded in the direction of the slab with the ejectors equipped with a moving mechanism, and disposed under the carriage to be movable in _s a vertical direction and spring loaded in the direction of the table for stacking cut blanks provided with a clamp, made in the form spring loaded lever. The column of the device is mounted in the sleeve with the possibility of rotation, the plate with ejectors and the table are mounted on the column, the spring-loaded lever is mounted on the table with the possibility of interaction with the column, the carriage and plate are spring-loaded to the press, the movement mechanism is made in the form of fixed on and the wedge bushing mounted at the plate to interact with the wedge roller _20, which converts vide.smontirovannoy mechanism is provided on the movable part presses the thrust bearing pivotally mounted pawl mounted on Mo lke shaft carrying ry- release lever 25, which interacts with the pawl, and a bevel gear meshed with another bevel gear mounted on a further bushing T2]. _Zo

Однако в известном устройстве не предусмотрена возможность регулировки длины хода плиты с выталкивателями в вертикальном направлении и ее вывода из зоны перемещения каретки, что затрудняет процесс замены резаков на каретке.However, in the known device it is not possible to adjust the stroke length of the plate with the ejectors in the vertical direction and its output from the zone of movement of the carriage, which complicates the process of replacing the cutters on the carriage.

Цель изобретения - улучшение условий обслуживания и обеспечение возможности регулировки длины хода плиты₄₀с выталкивателями в вертикальном направлении.The purpose of the invention is the improvement of service conditions and the possibility of adjusting the stroke length of the plate ₄₀ with the ejectors in the vertical direction.

Поставленная цель достигается тем, что в устройстве для вырубки заготовок из плоского материала, содержащем пресс, закрепленную на нем стойку, смонтированные на стойке каретку с полыми резаками, приводимую в движение в горизонтальной плоскости от подвижной части пресса через преобразующий механизм, расположенный под кареткой с возможностью перемещения в горизонтальной плоскости от каретки подъемный стол для размещения заготовок, и расположенную над кареткой с возможностью перемещения в горизонтальной ^S5плоскости от каретки и подпружиненную в вертикальном направлении плиту с выталкивателями, снабженную механиз мом перемещения в вертикальном направлении, включающим в себя клин и смонтированный на плите с возможностью взаимодействия с клином ролик, клин установлен с возможностью регулировочного перемещения в вертикальном направлении и снабжен механизмом регулировочного перемещения, выполненным в виде закрепленной на стойке втулки, установленный во втулке подвижной в вертикальном направлении колонки, на нижней части которой выполнена резьбовая нарезка и навинчен маховичок, закрепленный на втулке, а на верхней части установлен с возможностью перемещения вдоль нее клин и он снабжен фиксатором, фиксатор выполнен в виде шарнирно закрепленного на клине и подпружиненого к нему рычага, взаимодействующего с колонкой.This goal is achieved by the fact that in the device for cutting blanks of flat material containing a press, a rack mounted on it, a carriage with hollow cutters mounted on a rack, driven in a horizontal plane from the movable part of the press through a conversion mechanism located under the carriage with the possibility moving in the horizontal plane from the carriage a lifting table for placing workpieces, and located above the carriage with the ability to move in the horizontal ^S5 plane from the carriage and vertical inward plate with ejectors equipped with a vertical movement mechanism including a wedge and a roller mounted on the plate with the possibility of interaction with the wedge; the wedge is mounted with the possibility of adjusting movement in the vertical direction and is equipped with a adjusting movement mechanism made in the form of a fixed on the sleeve stand installed in the sleeve of a column movable in a vertical direction, on the lower part of which a threaded thread is made and handwheel mounted on the sleeve and on the upper part is moveable along it and is provided with a wedge lock, the lock is designed as a pivotally supported on a wedge and a spring loaded lever thereto interacting with the column.

На чертеже изображено устройство для вырубки заготовок из плоского материала, общий вид.The drawing shows a device for cutting blanks from a flat material, General view.

Устройство для вырубки заготовок из плоского материала содержит пресс 1, включающий верхнюю плиту 2, закрепленную на ползуне 3, и нижнюю плиту 4. Устройство содержит также магазин 5 для размещения стопы листов 6, шиберный толкатель 7, закрепленный на штанге 8, кронштейны 9 для установки рулона ленточного материала, 10, каретку 11 с отверстиями 12, несущую полые резаки 13, ролик 14, упор 15 и кронштейн 16.A device for cutting blanks of flat material contains a press 1, including an upper plate 2, mounted on a slider 3, and a lower plate 4. The device also contains a magazine 5 for placing a stack of sheets 6, a slide pusher 7, mounted on a rod 8, brackets 9 for installation a roll of tape material, 10, a carriage 11 with holes 12, carrying hollow cutters 13, a roller 14, an emphasis 15 and an arm 16.

На станине пресса 1 при помощи фланца 17 закреплена вертикальная колонка 18, несущая горизонтально расположенную втулку 19, в которой перемещается зубчатая рейка 20 и выполнен горизонтальный паз 21 для перемещения кронштейна 16, закрепленного на зубчатой рейке 20.A vertical column 18 is mounted on the press frame 1 by means of a flange 17, which carries a horizontally positioned sleeve 19, in which the gear rack 20 moves and a horizontal groove 21 is made to move the bracket 16 mounted on the gear rack 20.

На колонке 18 закреплен кронштейн 22, несущий втулку 23 с горизонтальным пазом 24. Во втулке 23 установлен подпружиненный пружиной 25 стержень 26, несущий кронштейн 27, перемещающийся по пазу 24. На кронштейне 27 закреплена втулка 28, в которой перемещается в вертикальном направлении подпружиненный пружиной 29 стержень 30, несущий на одном конце ролик 31, а на другом - плиту 32 с выталкивателями 33· На плите 32 закреплен упор 34.A bracket 22 is mounted on the column 18, which carries the sleeve 23 with a horizontal groove 24. A sleeve 26 is mounted in the sleeve 23, a spring 26 spring 26, a support bracket 27 that moves along the groove 24. A sleeve 28 is fixed to the bracket 27, in which the spring-loaded spring 29 is moved vertically a rod 30 supporting a roller 31 at one end and a plate 32 with ejectors 33 at the other end. An emphasis 34 is fixed to the plate 32.

На втулке 19 закреплен кронштейн 35, в котором смонтированы вал 36 с двумя шестернями 37 и 38. втулка 39.An arm 35 is fixed on the sleeve 19, in which the shaft 36 is mounted with two gears 37 and 38. the sleeve 39.

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Шестерня 38 входит в зацепление с зубчатой рейкой 20.Gear 38 is engaged with gear rack 20.

На верхней плите 2 закреплен кронштейн 40 со втулкой 41, в которой установлена с возможностью перемеще- 5 ния в вертикальном направлении зубчатая рейка 42, входящая в зацепление с шестерней 37 и несущая тягу 43 с шарнирнозакрепленной собачкой 44.A bracket 40 with a sleeve 41 is mounted on the upper plate 2, in which a gear rack 42 is mounted with the possibility of moving in the vertical direction 5, which engages with the gear 37 and carries the rod 43 with the articulated dog 44.

На кронштейне 40 закреплен двупле- ю 'чий рычаг 45, подпружиненный пружиной 46 ко втулке 41 и взаимодействующий одним концом с зубчатой рейкой 42, а другим концом - с упором 47, закрепленным на колонке 18 или кронштей- 15 не 35Во втулке 39 установлена с возможностью перемещения в вертикальном направлении колонка 48 на нижней части которой выполнены резьбовая нарез- 20 ка и вертикальный паз d , по которому перемещается штифт 49, закрепленный во втулке. 39На резьбовой части втулки 48 навинчен маховичок 50. 25A two-shouldered lever 45 is fixed to the bracket 40, spring loaded with a spring 46 to the sleeve 41 and interacting at one end with the gear rack 42, and the other end with a stop 47 fixed to the column 18 or the bracket 15 not 35 In the sleeve 39 is installed with the possibility vertical movement of the column 48 on the lower part of which is made a threaded thread of 20 ka and a vertical groove d along which the pin 49 is mounted, fixed in the sleeve. 39 A handwheel 50 is screwed onto the threaded portion of the sleeve 48. 25

Верхняя часть колонки 48 выполнена цилиндрической с продольным пазом 5 и на ней установлена с возможностью перемещения втулка 51 со штифтом 52, входящим в паз 5. 30The upper part of the column 48 is made cylindrical with a longitudinal groove 5 and mounted on it with the possibility of movement of the sleeve 51 with a pin 52 included in the groove 5. 30

На втулке 51 шарнирно закреплен рычаг 53, подпружиненный ко втулке 51 пружиной 54 и несущий упор 55, взаимодействующий с пазом β , выполненным в колонке 48. _Э5 A lever 53 is pivotally fixed to the sleeve 51, spring-loaded to the sleeve 51 by a spring 54 and a bearing stop 55, interacting with a groove β made in column 48. _E5

На колонке 18 закреплена втулкаOn the column 18 is fixed sleeve

56, в которой установлена шток-рейка56, in which the rod rail is installed

57, несущая горизонтально расположенную втулку 58, в которой перемещается подпружиненный пружиной 59 стер- ₄₀жень 60, несущий стойку 61, на которой закреплен стол 62 для размещения стоп заготовок 63, несущий упор 64.57, bearing sleeve 58 is disposed horizontally, in which the spring 59 moves the spring-loaded ster- ₄₀ Zhen 60 bearing a rack 61, which is fixed a table 62 for placing feet of workpieces 63, 64 carrying the abutment.

На втулке 51 закреплен или выполнен за одно целое с ней клин 65, вза- ₄₅имодействующий с роликом 31.On the sleeve 51 is attached or integrally formed with it the wedge 65, ₄₅ the interacting mutually with the roller 31.

На втулке 56 закреплен механизм подъема стола 62, включающий вал 66, несущий шестерню 67, входящую в зацепление со шток-рейкой 57, храповое ₅₀колесо 68, рычаг 69 с храповой собачкой 70, тормозную ленту 71, закреплен ную одним концом на втулке 56 и охватывающую вал 66, электромагнит 72, связанный через двуплечий рычаг 73 ₅₅ со свободным концом тормозной ленты 71 ·A mechanism for lifting the table 62 is mounted on the sleeve 56, including a shaft 66 that carries the gear 67 engaged with the rod 57, the ratchet _{50, the} wheel 68, the lever 69 with the ratchet dog 70, the brake band 71 fixed at one end to the sleeve 56 and covering the shaft 66, the electromagnet 72, connected through a two-arm lever 73 ₅₅ with the free end of the brake band 71 ·

Двуплечий рычаг 73 шарнирно закреплен на втулке 56 и подпружинен пружиной 74. Стол 62 подпружинен пружиной 75Устройство для вырубки заготовок из плоского материала работает следующим образом.The two-arm lever 73 is pivotally mounted on the sleeve 56 and is spring-loaded with a spring 74. Table 62 is spring-loaded with a spring 75. A device for cutting blanks from flat material works as follows.

В исходном положении устройства ползун 3 с верхней плитой 2’находится в верхнем положении. Зубчатая рейка 20 с кареткой 11 находится в крайнем левом положении, т. е. каретка 11 расрасположена над столом 62, который под действием пружины 75 поднят также в верхнее исходное положение.In the initial position of the device, the slider 3 with the upper plate 2’s in the upper position. The gear rack 20 with the carriage 11 is in the extreme left position, that is, the carriage 11 is located above the table 62, which, under the action of the spring 75, is also raised to the upper initial position.

Стол 62 на стержне 60 во втулке 58 находится в крайнем левом положении, пружина 59 сжата, а упор 64 взаимодействует с упором 15 на каретке 11. Электромагнит 72 механизма подъема стола. 62 отключен, под действием пружины 74 рычага 73 тормозная лента 71 удерживает вал 66 от поворота, т. е. фиксирует в поднятом положении стол 62. Зубчатая рейка 42 зафиксирована во втулке 41 двуплечим рычагомThe table 62 on the rod 60 in the sleeve 58 is in the extreme left position, the spring 59 is compressed, and the emphasis 64 interacts with the emphasis 15 on the carriage 11. The electromagnet 72 of the table lifting mechanism. 62 is disconnected, under the action of the spring 74 of the lever 73, the brake band 71 keeps the shaft 66 from turning, that is, it fixes the table 62 in the raised position. The gear rack 42 is fixed in the sleeve 41 with a two-arm lever

45. Плита 32 опущена вниз, пружина 29 сжата. Выталкиватели 33 находятся в отверстиях 12 каретки 11 и выступают ниже уровня лезвий резаков 13. Плита 32 удерживается от смещения в горизонтальном направлении упором -34, взаимодействующим с роликом 14 на каретке 11. Клин 65 и втулка 51 опущены и зафиксированы рычагом 53. При этом клин 65 взаимодействует с роликом 31 на стержне 30, преодолевая усилие пру жины 29. Плита 32 удерживается от смещения в горизонтальном направлении под воздействием упора. 15 на каретке 11 на упор 64. В указанном положении осуществляют регулировку хода перемещения плиты 32 в зависимости от установки высоты стола 62 путем поворота маховичка 50, который перемещает колонку 48 вместе с клином 65 в соответствующем направлении. Затем рычаг 53 отводят от втулки 51 под действием пружины 29 плита 32 поднимается вверх вместе с выталкивателями 33, обеспечивая удобство для замены резаков 13 на каретке 11 после установки резаков 13 на каретку 11. Клин 65 опустится по колонке 48 вниз и зафиксируется рычагом 53· При ходе ползуна 3 с плитой 2 вниз зубчатая рейка 42 вращает шестерню 37, которая через вал 36 приводит во вращение шестерню 38, шестерня 38 перемещает зубчатую рейку 20 и каретку 11 вправо, при этом стол 62 под действием пру- отдели-5 плитой изίο45. The plate 32 is lowered down, the spring 29 is compressed. The pushers 33 are located in the holes 12 of the carriage 11 and protrude below the level of the blades of the cutters 13. The plate 32 is prevented from shifting in the horizontal direction by a support -34 interacting with the roller 14 on the carriage 11. The wedge 65 and the sleeve 51 are lowered and secured by the lever 53. The wedge 65 interacts with the roller 31 on the rod 30, overcoming the force of the spring 29. The plate 32 is kept from displacement in the horizontal direction under the influence of the stop. 15 on the carriage 11 to the stop 64. In the indicated position, the movement of the plate 32 is adjusted depending on the setting of the height of the table 62 by turning the handwheel 50, which moves the column 48 together with the wedge 65 in the corresponding direction. Then the lever 53 is withdrawn from the sleeve 51 under the action of the spring 29, the plate 32 rises up together with the ejectors 33, providing convenience for replacing the cutters 13 on the carriage 11 after installing the cutters 13 on the carriage 11. The wedge 65 will lower down the column 48 and be fixed by the lever 53 in the course of the slider 3 with the plate 2, the gear rack 42 rotates the gear 37, which drives the gear 38 through the shaft 36, the gear 38 moves the gear rack 20 and the carriage 11 to the right, while the table 62 is driven by the plate 5

IS жины 59 перемещается одновременно с кареткой 11 в сторону пресса, а затем останавливается. Каретка 11 продолжает перемещение в сторону пресса 1, при этом упор 15 на каретке 11 ется от упора 64. Одновременно пружина 29 перемещает стержень 30 с 32 вверх по мере выхода ролика под клина 65. Ролик 14 также выходит из взаимодействия с упором 34. Затем при дальнейшем ходе верхней плиты 2 вниз упор 47 воздействует на конец двуплечего рычага 45 и поворачивает его.The spring IS 59 moves simultaneously with the carriage 11 toward the press, and then stops. The carriage 11 continues to move towards the press 1, while the emphasis 15 on the carriage 11 moves away from the stop 64. At the same time, the spring 29 moves the rod 30 with 32 upward as the roller exits under the wedge 65. The roller 14 also comes out of interaction with the stop 34. Then, when the further course of the upper plate 2 down the stop 47 acts on the end of the two shoulders of the lever 45 and rotates it.

Двуплечий рычаг 45 выходит из взаимодействия с зубчатой рейкой 42. Шестерни 37 и 38, зубчатая рейка 20 с кареткой 11 останавливаются. Под прессом 1 осуществляется вырубка заготовок 63 из поданного в рабочую зону пресса материала 6 или 10, в данном случае из нескольких листов 6. В начале хода верхней плиты 2 вверх зубчатая рейка 42 остается неподвижной, а затем упор 47 выходит из взаимодействия с двуплечим рычагом 45, который под действием пружины 46 поворачивается и фиксирует зубчатую рейку 42 во втулке 41.The two shoulders lever 45 is out of interaction with the gear rack 42. The gears 37 and 38, the gear rack 20 with the carriage 11 are stopped. Under the press 1, blanks 63 are cut from the material 6 or 10 fed into the press working area, in this case from several sheets 6. At the beginning of the upward movement of the top plate 2, the toothed rack 42 remains stationary, and then the stop 47 comes out of interaction with the two-arm lever 45 which, under the action of the spring 46, rotates and fixes the gear rack 42 in the sleeve 41.

Зубчатая рейка 42 в дальнейшем пе-зо ремещается вверх вместе с верхней плитой 2 и через шестерни 37 и 38 и вал 36 перемещает зубчатую рейку 20 влево, т. е. в сторону плиты 4. Зубчатая рейка 20, в свою очередь, пере~₃₅мещает каретку 11 влево вместе с вырубленными заготовками 63- В процессе перемещения каретки 11 осуществляется удаление отходов. Ролик 14 на каретке 11 чего при ретки 11 32 также Вместе с входит в взаимодействует с ним, 32 начинает опускаться вниз. Выталкиватели 33 входят в отверстия 12 на каретке 11 и начинают касаться вырубленных заготовок 63 в полости резаков 13· В указанный момент каретка 11 находится над столом 62. При дальнейшем перемещении каретки 11 упор 15 воздействует на упор 64. Преодолевая усилие пружины 59, стол 62 также начинает одновременно с кареткой 11 перемещаться вправо. В указанный момент в процессе перемещения каретки 1 1 , стола 62 и плиты 32 осущест воздействует на упор 34, от-₄₀дальнейшем перемещении кавлево она перемещает плиту влево, сжимая пружину 25. тем ролик 31 на стержне 30 зону установки клина 65 и отчего плита вляется выталкивание нескольких вырубленных заготовок 63 из резаков 13, которые благодаря перемещению стола 62 поочередно в процессе выталкивания ложатся в одну сторону. При этом собачка 44 воздействует на рычаг 69 и и он посредством храповой собачки 70. вала 66, шестерни 67 и храпового колеса 68 осуществляет перемещение стола 62 вниз на толщину вытолкнутых заготовок 63· Электромагнит 72 в этот момент включается и поворачивает двуплечий рычаг 73· Тормозная лента 71 ослабляется. Затем собачка 44 выходит из взаимодействия с рычагом 69. электромагнит 72 отключается. Двуплечий рычаг 73 под действием пружины 74 поворачивается и натягивает тормозную ленту 71, которая предотвращает поворот вала 66 и стол 62 от самопроизвольного опускания под нарастающим весом стопы заготовок 63. К моменту выхода выталкивателей 33 из резаков 13 одновременно завершается перемещение в исходное положение стола 62, каретки 11 и плиты 32 с выталкивателями 33. Когда на стол 62 будет уложена стопа заготовок 63, включают электромагнит 72, который через рычаг 73 ослабляет тормозную ленту 71 и и стол 62 опускается. Затем цикл повторяется.The gear rack 42 subsequently moves upward along with the upper plate 2 and through the gears 37 and 38 and the shaft 36 moves the gear rack 20 to the left, i.e. toward the plate 4. The gear rack 20, in turn, is shifted to ~ ₃₅ moves the carriage 11 to the left with the cut blanks 63. In the process of moving the carriage 11, waste is removed. The roller 14 on the carriage 11 which, when the reticles 11 32 is also together with the interacts with him, 32 begins to sink down. The pushers 33 enter the holes 12 on the carriage 11 and begin to touch the cut blanks 63 in the cavity of the cutters 13 · At the indicated moment, the carriage 11 is above the table 62. With further movement of the carriage 11, the stop 15 acts on the stop 64. Overcoming the spring force 59, the table 62 also starts simultaneously with the carriage 11 to move to the right. At that moment, in the process of moving the carriage 1 1, the table 62 and the plate 32, it acts on the stop 34, from further ₄₀ moving it to the left, it moves the plate to the left, compressing the spring 25. thereby the roller 31 on the rod 30 has the installation zone of the wedge 65 and why the plate ejection of several cut-out blanks 63 from the cutters 13, which, due to the movement of the table 62, alternately lie in the same direction during the ejection process. In this case, the dog 44 acts on the lever 69 and he, by means of a ratchet dog 70. the shaft 66, gear 67 and the ratchet wheel 68 moves the table 62 down to the thickness of the pushed blanks 63 · The electromagnet 72 is turned on and rotates the two-arm lever 73 · Brake band 71 is weakening. Then the dog 44 is out of interaction with the lever 69. The electromagnet 72 is turned off. The two-arm lever 73 under the action of the spring 74 rotates and pulls the brake band 71, which prevents the shaft 66 and the table 62 from spontaneously lowering under the increasing weight of the stack of workpieces 63. By the time the ejectors 33 exit the cutters 13, the movement to the initial position of the table 62, the carriage is completed 11 and plates 32 with ejectors 33. When a stack of blanks 63 is laid on table 62, an electromagnet 72 is turned on, which through the lever 73 weakens the brake band 71 and the table 62 is lowered. Then the cycle repeats.

Предложенное устройство удобно в обслуживании и надежно в работе.The proposed device is convenient to maintain and reliable in operation.

Claims

The invention relates to the cold working of sheet materials and can be used for cutting blanks from flat material. A device for cutting blanks from a flat material, comprising a press, a carriage, base-mounted guides for moving the carriage with cutters, a gear rack connected to the carriage, at least one gear that engages with the rack, a mechanism for ejecting blanks is known. from the carriage, made in the form of a spring-loaded in the vertical direction located above the carriage and set in motion in this direction from the movable part of the plate device carrying the pushers installed with the movement in the direction parallel to the movement of the carriage and fitted with an anchor fixed on it with the possibility of interaction with the carriage and a movement mechanism made in the form of a cable interacting with the carriage, one end of which is fixed on the plate and the other end is connected to the base Tl. However, in the known device, the plate transfer mechanism has a complex structure and is not reliable enough in operation. The closest in technical essence and the achieved effect is a device for cutting blanks from flat material containing a press, a sleeve fixed on it, a vertical column mounted in the sleeve, an additional rotary sleeve freely mounted on the column, driven from the moving part of the press through a conversion mechanism mounted on an additional bushing with the possibility of movement in the vertical direction and the carriage with spring cutters in this direction, located on d carriage can be moved in the vertical direction and spring-loaded plate with ejectors in this direction, equipped with a moving mechanism, and located under the carriage can be moved in the vertical direction and spring-loaded in this direction table for laying the cut blanks, equipped with a lock made in the form of spring-loaded leverage. The device column is mounted in the sleeve so that it can be rotated, the plate with ejectors and the table are mounted on the cat. The spring-loaded lever is mounted on the table with the possibility of interaction with the column, the carriage and the plate is spring-loaded to the press, the transfer mechanism is designed as a wedge mounted on the sleeve and mounted on the plate with the possibility of interaction with the roller wedge, the transforming mechanism is made as mounted on the moving suit a press bearing a hinged pawl, a shaft mounted on a sleeve, carrying a lever that interacts with the pawl, and a bevel gear that engages with a bevel gear Installed an extra sleeve T2. However, in the known device, it is not possible to adjust the stroke length of the plate with ejectors in the vertical direction and its withdrawal from the carriage movement zone, which makes it difficult to replace the cutters on the carriage. The purpose of the invention is to improve the service conditions and to enable adjustment of the stroke length of the plate with ejectors in the vertical direction. The goal is achieved by the fact that in a device for cutting blanks from a flat material containing a press, a rack fixed on it, a carriage with full cutters mounted on the rack, driven in a horizontal plane from the movable part of the press through a conversion mechanism located under the carriage with the possibility of moving in the horizontal plane from the carriage a lifting table for placing the blanks, and located above the carriage with the possibility of moving in the horizontal plane from the carriage and vertically ginned ejector plate with a movement mechanism in the vertical direction, including a wedge and mounted on the plate with the ability to interact with the wedge roller, the wedge is installed with the possibility of adjustment movement in the vertical direction and is equipped with an adjustment movement mechanism made in the form of fixed on the stand of the sleeve mounted in the sleeve movable in the vertical direction of the column, on the lower part of which is threaded cutting and Navi The handwheel is fixed on the sleeve, and on the upper part a wedge is mounted for movement along it and it is equipped with a lock, the lock is made in the form of a lever hinged to the wedge and spring-loaded to it interacting with the column. The drawing shows a device for cutting blanks from a flat material, a general view. The device for cutting blanks from flat material contains a press 1 comprising an upper plate 2 fixed on a slider 3 and a lower plate 4. The device also contains a magazine 5 for placing a stack of sheets 6, a slide pusher 7 fixed on a rod 8, brackets 9 for mounting roll tape material 10, a carriage 11 with holes 12, carrying hollow cutters 13, roller 1, stop 15 and bracket 16. On the base of press 1 by means of a flange 17 a vertical column 18 is fixed, carrying a horizontal sleeve 19 in which the gear moves This rail 20 and a horizontal groove 21 are made to move the bracket 16 fixed to the rack rail 20. On the column 18 there is a bracket 22 secured by a sleeve 23 with a horizontal groove 2k. In the sleeve 23 there is mounted a spring-loaded rod 25 with a spring 25, bearing bracket 27 moving along a groove 2k. A bracket 28 is fixed on the bracket 27, in which a rod 30 spring-loaded 29 moves in a vertical direction, carrying a roller 31 at one end, and a plate 32 with ejectors 33 on the other end. A bracket 35 is fixed on a plate 32. in which shaft 36 is mounted with two gears 37 and 38. sleeve 39 Gear 38 is engaged with gear rack 20. On top plate 2, a kQ matte is attached with sleeve C, in which the gear rack is mounted with the possibility of displacements in the vertical direction 42, engaging e with gear 37 and carrying k3 with a hinged dog, On the bracket tO there is a double-sided lever kS, spring-loaded spring 6 to the sleeve tl and communicating with the other end with the rack 42, and the other end with the stop 7 mounted on column 18 or the bracket 35. In the sleeve 39, the column C8 is mounted for movement in the vertical direction on the lower part of which a thread is cut and a vertical groove d is moved along which the pin pin secured in the sleeve is moved. The handwheel 50 is screwed on the threaded part of the sleeve 48. The upper part of the column 48 is cylindrical with a longitudinal groove b and the sleeve 51 is mounted for movement with a pin 52 entering the groove 5. The sleeve 53 is hinged on the sleeve 51. spring-loaded to the sleeve 5 spring 54 and a bearing stop 55, which interacts with the groove g, made in column 48. On column 18 is fixed a sleeve 56, in which is mounted a rod-rod 57. carrying a horizontal sleeve 58, in which a spring-loaded spring 60 moves 59 61, on which is fixed a table 62 for placing the blanks 63 carrying the stop 64. On the sleeve 51, a wedge B5, which interacts with the roller 31, is fixed or made in one piece with it. On the sleeve 5b there is a table lifting mechanism 62, including shaft 66, bearing gear B7, engaging with the rod-rail 57, ratchet wheel 68, lever 69 with ratchet pawl 70, brake band 71 fixed at end 5 on hub 5b and enveloping shaft 66, electromagnet 72 connected via two shoulders lever 73 with the free end of the brake band 71. Two-armed lever 73 hinge a sleeve 56 fixed to and biased by a spring 74. The table 62 is biased by a spring 75. An apparatus for cutting blanks from flat material operates as follows. In the initial position of the device, the slider 3 with the upper plate 2 is in the upper position. The toothed rack 20 with the carriage 11 is in the extreme left position, i.e. the carriage 11 is located above the table 62, which is also raised to the upper initial position by the action of the spring 75. The table 62 on the rod 60 in the sleeve 58 is in the leftmost position, the spring 59 is compressed, and the stop 64 interacts with the stop 15 on the carriage 11. The electromagnet 72 of the table lifting mechanism 63 is disconnected, under the action of the spring 74 of the lever 73 the brake tape 71 holds the shaft 66 against rotation, i.e., fixes table 62 in a raised position. A rack 42 is fixed in hub 41 with a double-arm lever 45. Plate 32 is lowered down, spring 29 is compressed. The pushers 33 are located in the holes 12 of the carriage 11 and protrude below the level of the blades of the cutters 13. The plate 32 is kept from horizontal movement by an emphasis -34 interacting with the roller 14 on the carriage 11. The wedge 65 and the sleeve 51 are lowered and fixed by the lever 53. When In this way, the wedge B5 interacts with the roller 31 on the rod 30, overcoming the force of the spring 29. The plate 32 is kept from shifting in the horizontal direction under the influence of the stop. 15 on the carriage 11 to the stop 64. In this position, the stroke of the plate 32 is adjusted according to the table height setting b2 by turning the handwheel 50, which moves the column 48 together with the wedge b5 in the corresponding direction. Then the lever 53 is retracted from the sleeve 51 under the action of the spring 29, the plate 32 rises up together with the pushers 33. providing convenience for replacing the cutters 13 on the carriage 11 after installing the cutters 13 on the carriage 11. Wedge b5 descends down the column 48 and locks the lever 53 During the course of the slide 3 with the plate 2 down the gear bar 42 rotates the gear 37, which through the shaft 36 drives the gear 38 to rotate. Gear 38 moves the gear bar 20 and the carriage 11 to the right, while the table 62 moves under the action of the spring 59 simultaneously with the carriage 11 towards pres and then stopped. The carriage 11 continues to move in the direction of the press 1, while the stop 13 on the carriage 11 is separated from the stop 6. At the same time, the spring 29 moves the rod 30 with the plate 32 upwards as the roller 31 leaves the wedge 65. The roller H also comes out of the interaction with emphasis k. Then, with the further course of the top plate 2 down, the stop kj acts on the end of the two shoulders lever 5 and turns it. The double-shouldered lever 45 emerges from the interaction with the rack “2. The gears 37 and 38, the gear rack 20 with the carriage 11 are stopped. Under the press 1, blanks 63 are cut from material 6 or 10 fed into the press zone, in this case from several sheets 6. At the beginning of the upper plate 2, the rack 2 remains stationary and then the stop comes out of engagement with the two-arm lever kS, which, under the action of the spring 46, rotates and finishes the rack 2 in the sleeve 41. The toothed rack 42 further moves upward along with the upper plate 2 and through the gears 37 and 38 and the shaft 36 moves the toothed rack 20 to the left, i.e., to the side of the plate 4. The toothed rail 20 moves the carriage 11 to the left together with the blanks cut 63- B, the process of moving the carriage 11 removes waste. The roller 14 on the carriage 11 acts on the stop 34, from which, with the further movement of the carriage 11 to the left, it moves the plate 32 also to the left, compressing the spring 25. However, the roller 31 on the rod 30 enters the wedge installation zone b5 and interacts with it, causing the plate 32 starts to go down. The ejectors 33 enter into the holes 12 on the carriage 11 and begin to touch the cut blanks 63 in the cavity of the cutters 13. At this point, the carriage 1 is above the table 62. With further movement of the carriage 11, the stop 15 acts on the stop 64, Overcoming the spring force 59, table b2 also begins to move to the right simultaneously with the carriage P. At this point, in the process of moving the carriage 1 1, the table 62 and the plate 32, several pitted blanks 63 are pushed out of the cutters 13, which, due to the movement of the table b2, alternately in the process of pushing go in one direction. The dog 44 acts on the lever b9 and, through the ratchet dog 70, the shaft 66, the gear b7 and the ratchet wheel 68, it moves the table b2 down by the thickness of the ejected blanks 63. The electromagnet 72 at this moment turns on and turns the double-shouldered lever 73. Brake tape 71 is loosened. Then the dog 44 leaves the engagement with the lever B9, the electromagnet 72 is turned off. The double-shouldered lever 73, under the action of the spring 74, rotates and pulls the brake band 71, which prevents the shaft 66 and the table 62 from rotating from spontaneously lowering under the increasing weight of the foot of the blanks 63-. The carriages 11 and the plates 32 with the ejector 33. When the fid table b2 is stowed over the stack of blanks 63, an electromagnet 72 is turned on, which through the lever 73 weakens the brake band 71 and the table 62 lowers. Then the cycle is repeated. The proposed device is convenient to maintain and reliable in operation. Claim 1. Device for cutting blanks from flat material, comprising a press, a rack mounted on it, mounted on a rack a carriage with hollow cutters, driven in the horizontal plane from the movable part of the press through a converting mechanism located under the carriage that can be moved in the horizontal plane from the carriage a lifting table for placing the blanks, and located above the carriage with the possibility of moving in the horizontal plane from the carriage and spring-loaded in the vertical cial direction with ejectors plate fitted peremektseni mechanism in the vertical direction includes a wedge and mounted on the plate to cooperate with a wedge roller, characterized in that, on the. 992 in order to improve the service conditions and enable adjustment of the plate's stroke length in the vertical direction, the wedge is installed with the possibility of adjustment movement in the vertical direction and is equipped with the adjustment movement mechanism, made in the form of a sleeve mounted on a stand mounted in the column of the column moving in the vertical direction. the part of which is threaded and the handwheel mounted on the hub is screwed, and a wedge is mounted on the upper part with the possibility of moving along her and he is provided with a lock. 5 2. The device according to claim 1, is about the fact that the retainer is made in the form of a lever hinged on the wedge and spring-loaded to it, interacting with the column. Sources of information taken into account in the examination 1. USSR author's certificate on the application (G 2966007 / 25-27, cl. B 21 D 43/00, H 29 N C / PA, 07.30.80.

2. USSR author's certificate as per If If application 2966113 / 25-27, cl. B 21 D 3/00, B 30 B 15/30, 30. (prototype).