SU856779A1

SU856779A1 - Shot blasting apparatus

Info

Publication number: SU856779A1
Application number: SU762367291A
Authority: SU
Inventors: Сергей Михайлович Гладков; Борис Сергеевич Пешков; Иван Семенович Демихов
Original assignee: Проектно-Конструкторское И Технологическое Бюро Целлюлозно-Бумажного Машиностроения
Priority date: 1976-06-01
Filing date: 1976-06-01
Publication date: 1981-08-23

Description

Изобретение относится к дробеструйной обработке деталей.The invention relates to shot peening of parts.

Известен дробеструйный аппарат непрерывного действия с автоматической системой управления пересыпкой дроби посредством пневматически управляемых ® перепускных клапанов, содержащий загрузочную, приемную и снабженную датчиком уровня подающую камеры £11·Known continuous shot blasting apparatus with an automatic control system for pouring shots through pneumatically controlled ® bypass valves, containing a loading, receiving and equipped with a level sensor feed chamber £ 11

Недостаток известного аппарата заключается в низкой надежности его работы.A disadvantage of the known apparatus is the low reliability of its operation.

Цель изобретения - повышение надежности работы аппарата.The purpose of the invention is to increase the reliability of the apparatus.

Указанная цель достигается за счет того, что датчик уровня дроби выпол— нен в виде двух коаксиально установ ленных друг относительно друга с возможностью перемещения пневматических силовых цилиндров, шток одного из которых снабжен с одного конца щупом, а с другого упором, установленным с возможностью взаимодействия с введенным в устройство трех15 линейным клапаном, расположенные на другом цилиндре.This goal is achieved due to the fact that the fractional level sensor is made in the form of two coaxially mounted relative to each other with the possibility of moving pneumatic power cylinders, the rod of one of which is equipped with a probe at one end, and with a stop installed with the possibility of interaction with introduced into the device by a three15 linear valve located on another cylinder.

На чертеже₍ схематически изображено предлагаемое устройство,, общий вид.In the drawing ₍ schematically shows the proposed device, General view.

_t Аппарат дробеструйный включает затвор 1, загрузочную 2, приемную 3 и подающую 4 камеры, разделенные между собой клапанами 5. Подающая камера 4 снабжена датчиком 6 уровня, имеющим основной цилиндр 7, шток 8 которого несет щуп 9 и упор 10, и дополнительный цилиндр 11, содержащий трехлинейный клапан 12, соединенньй при помопц пневматических устройств. 13 с устройством 14 для автоматического управления перепуском дроби. _t The shot blasting apparatus includes a shutter 1, a loading 2, a receiving 3 and a supply 4 chambers separated by valves 5. The supply chamber 4 is equipped with a level sensor 6 having a main cylinder 7, a rod 8 of which carries a probe 9 and a stop 10, and an additional cylinder 11 comprising a three-way valve 12 connected to a pomp of pneumatic devices. 13 with a device 14 for automatically controlling fraction bypass.

Дробеструйный аппарат работает следующим образом.Shot blasting apparatus operates as follows.

Дробь затвором I, включающим в работу устройство для автоматического управления перепуском дроби, периодически подается в загрузочную каме856779 ру. 2, из которой пересыпается в приемную камеру 3 в тот момент, когда давление в ней равно атмосферному. Из приемной камеры 3 дробь поступает в подающую камеру 4, постоянно нахо- $ дящуюся под давлением сжатого воздуха, когда давление сжатого воздуха в приемной 3 и подающей 4 камерах одинаково.Fraction shutter I, which includes a device for automatically controlling the bypass fraction, is periodically fed into the loading chamber 856779 ru. 2, from which it is poured into the receiving chamber 3 at the moment when the pressure in it is equal to atmospheric. From the receiving chamber 3, the fraction enters the supply chamber 4, which is constantly under pressure from the compressed air when the pressure of the compressed air in the receiving 3 and the supply 4 chambers is the same.

Щуп датчика 6 уровня совершает ю возвратно-поступательные движения от основного цилиндра 7 синхронно перепуску дроби, получая сигнал от устройства 14 для автоматического управления перепуском дроби. Сжатый ₁₅воздух от устройства 14 поступает в основной 7 и дополнительный 11 цилиндры* , вследствие чего шток 8, несущий Щуп 9, упор 10 и дополнительный цилигдр 11, имеющий трехлинейный клапан 20 12, перемещаются в направлении подающей камеры 4.The probe of the level 6 sensor performs reciprocating movements from the main cylinder 7 simultaneously to the fraction bypass, receiving a signal from the device 14 for automatically controlling the fraction bypass. The compressed air ₁₅ from the device 14 enters the main 7 and the additional 11 cylinders *, as a result of which the rod 8 carrying the probe 9, the stop 10 and the additional cylinder 11 having a three-way valve 20 12 are moved in the direction of the supply chamber 4.

Вследствие того, что скорость перемещения основного цилиндра 7 выше скорости перемещения дополнительного 25 цидиндра 11, трехлинейный клапан 12, включающийся упором 10 лишь при достижении щупом 9 шахматного уровня дроби, после чего сблокирует устройство 14 для автоматического управления пере- зо пуском дроби, срабатывает вновь через 15-20-с от пневматических устройств·,Изобретение позволяет повысить надежность работы устройства.Due to the fact that the speed of movement of the main cylinder 7 is higher than the speed of movement of the additional 25 cylinder 11, the three-way valve 12, which is turned on by the stop 10 only when the probe 9 reaches the checkerboard level, then blocks the device 14 for automatically controlling the restart of the shot, works again through 15-20-s from pneumatic devices ·, The invention improves the reliability of the device.

Claims

This invention relates to shot blasting of parts. A shot blasting apparatus with an automatic control system for transferring shots by means of pneumatically controlled relief valves is known, which contains loading, receiving and equipped with a level sensor fed to the chamber II. A disadvantage of the known apparatus is the low reliability of its operation. The purpose of the invention is to increase the reliability of the apparatus. This goal is achieved due to the fact that the shot level sensor is made in the form of two coaxially mounted relative to each other with the possibility of moving pneumatic power cylinders, the stem of one of which is equipped with a probe from one end and with another fixed with the ability to interact with the entered The device has a three-way valve located on another cylinder. The drawing schematically shows the proposed device, oblique view. The shot-blasting apparatus includes a shutter 1, a loading 2, a receiving 3 and a supplying 4 chambers separated by valves 5. The feeding chamber 4 is equipped with a level sensor 6 of a main cylinder 7, with a dipstick 9 and an emphasis 10, and an additional cylinder 11 containing a three-way valve 12, combining Hbtft using pneumatic devices, 13 with a device 14 for automatic control of shot transfer. Drobest {Uish device works as follows. The fractional shutter {, the device for automatic control of the fraction by-pass is turned on, periodically fed into the loading chamber. 2, from which it is transferred to the receiving chamber 3 at the moment when the pressure in it is equal to the atmospheric pressure. From the receiving chamber 3, the shot enters the feed chamber 4, which is constantly under pressure of compressed air when the pressure of compressed air in the receiving 3 and feed 4 chambers are the same. The level sensor probe 6 reciprocates from the main cylinder 7 synchronously bypassing the shot, receiving a signal from the device 14 for automatic control of the shot bypass. Compressed air from the device 14 enters the new 7 and an additional 11 cylinders. As a result, the rod 8, bearing the probe 9, the stop 10 and the additional cylinder 11 having a three-way valve 12, move in the direction of the feed chamber 4. Due to the speed of movement The main cylinder 7 above the speed of movement of the additional cylinder 11, the three-way valve 12, which is turned on by the stop 10 only when the test head has a chess-piece level and then locks the device 14 for automatic control of the fraction bypass, 15–20 sec from pneumatic devices. The invention allows to increase the reliability of the device. Invention A blasting machine of continuous action with an automatic shot-pouring control system by means of pneumatically controlled relief valves containing a loading, receiving and equipped with a level sensor feed chamber, characterized in that, in order to improve the reliability of the device, the shot-level sensor is coaxial installed relative to each other with the ability to move pneumatic power cylinders, the stem of one of which is equipped with a probe at one end and, on the other hand, an emphasis installed with the possibility of interaction with a three-line valve introduced into the device located on another cylinder. Sources of information taken into account in the examination 1. USSR author's certificate 395247, cl. B 24 C 9/00, 1971,