SU932263A1

SU932263A1 - Device for batching loose materials

Info

Publication number: SU932263A1
Application number: SU803001928A
Authority: SU
Inventors: Александр Моисеевич Юсман; Михаил Яковлевич Боровиков
Original assignee: Опытно-Конструкторское Технологическое Бюро Расфасовочного И Упаковочного Оборудования
Priority date: 1980-11-06
Filing date: 1980-11-06
Publication date: 1982-05-30

Description

Изобретение относится к весоизмерительной технике.The invention relates to a weight measuring technique.

Известно устройство для дозирования сыпучих материалов, содержащее питающий бункер, под которым установлен подающий транспортер с регулируемой скоростью движения ленты. Доза материала поступающего на ленту регулируется при помощи заслонки, установленной на'выходной стенке питающего бункера £1].A device for dispensing bulk materials containing a feed hopper, under which a feed conveyor with an adjustable speed of the belt. The dose of material supplied to the tape is regulated by means of a shutter installed on the exit wall of the feed hopper £ 1].

Недостатком устройства является то, что дозирование производится недостаточно точно.The disadvantage of this device is that dosing is not accurate enough.

Наиболее близким по технической сущности к предлагаемому является устройство для дозирования сыпучих материалов, содержащее ленточный питатель и бункер, снабженный весовым датчиком-шибером, который посредством рычажного механизма связан· с датчиком давления сыпучего материала £ 2 ].The closest in technical essence to the proposed one is a device for dispensing bulk materials containing a belt feeder and a hopper equipped with a weighted gate sensor, which is connected via a linkage mechanism · to a pressure sensor for bulk material £ 2].

Недостатком известного устройства является то, что в фаеввочшлх автоматах требуются частые пуски, и остановки, переналадки производительности и эти переходные режимы работы значительно снижают допуски на точность дозирования.A disadvantage of the known device is that in automatic machines, frequent starts are required, and stops, readjustments of performance and these transient modes of operation significantly reduce tolerances on the accuracy of dosing.

Цель изобретения - повышение точности дозирования.The purpose of the invention is improving the accuracy of dosing.

Поставленная цель достигается тем, что шибер снабжен приводом, а рычажный механизм выполнен в виде двуплечего рычага, на одном из плеч которого установлен с возможностью осевого перемещения уравновешивающий груз, а на другом плече - неподвижный груз, через который это плечо кинематически связано с датчиком давления сыпучего материала.This goal is achieved by the fact that the gate is equipped with a drive, and the lever mechanism is made in the form of a two-shouldered lever, on one of the shoulders of which a balancing load is mounted with the possibility of axial movement, and on the other shoulder - a fixed load through which this shoulder is kinematically connected with the bulk pressure sensor material.

На чертеже дана кинематическая схема устройства.The drawing shows a kinematic diagram of the device.

Устройство содержит ленточный питатель 1 с бункером 2. В выходной стенке бункера 2 установлен весовой шибер 3, который через рычажный механизм 4, уравновешивающий груз 5, свободно установленный на одном из плеч ей двуплечего рычага 6, через раму 7 питателя I связан с датчиком 8 давления сыпучего материала, находящегося на питателе 1.The device comprises a tape feeder 1 with a hopper 2. In the output wall of the hopper 2, a weight gate 3 is installed, which through the lever mechanism 4, balancing the load 5, freely mounted on one of the shoulders of the two-arm lever 6, is connected to the pressure sensor 8 through the frame 7 of the feeder I bulk material located on the feeder 1.

Ленточный питатель 1 установлен на' раме 7 и связан с приводом 9» Весовой шибер через рычаг 10 связан с силовым цилиндром 1i управляемым системой пуска и остановки оборудования. Свободный конец двуплечего рычага 6 примыкает к раме через груз 12.The tape feeder 1 is mounted on the 'frame 7 and connected to the drive 9 ”. The weight gate through the lever 10 is connected to the power cylinder 1i controlled by the start and stop system of the equipment. The free end of the two shoulders of the lever 6 is adjacent to the frame through the load 12.

Устройство, для дозирования сыпучих материалов работает следующим образом.A device for dispensing bulk materials works as follows.

При включении подачи продукта на движущийся ленточный питатель 1 цилиндр 11 поднимает весовой шибер 3 и начинается подача сыпучего материала на питатель 1 из бункера 2. При опущенном шибере 3 продукт на движущийся ленточный питатель 1 не поступает и уравнивающий груз 5 при помощи рычажного механизма 4 установлен с минимальным плечом на двуплечем рычаге 6, благодаря чему груз 12 оказывает максимальное давление на датчик 8 сыпучего материала, который поддерживает постоянный скоростной режим ленточного питателя.When the product feed is switched on to the moving belt feeder 1, the cylinder 11 lifts the weight gate 3 and the flow of bulk material to the feeder 1 begins from the hopper 2. When the gate 3 is lowered, the product does not flow to the moving belt feeder 1 and the equalizing load 5 is set with the lever mechanism 4 with minimum shoulder on the two-arm lever 6, so that the load 12 exerts maximum pressure on the sensor 8 of bulk material, which maintains a constant speed mode of the tape feeder.

При подъеме шибера 3 уравновешивающий груз 5 при помощи рычажного механизма 4 перемещается на плече двуплечего рычага 6, увеличивая плечо, благодаря чему уменьшается сила воздействия груза 12 на раму 7. Благодаря подачи продукта на питатель 1 сила взаимодействия с датчиком 8 давления сыпучего материала на питателе остается неизменной и дозатор быстро выходит на 'заданный режим работы без остановки питателя.When lifting the gate 3, the balancing load 5 with the lever mechanism 4 moves on the shoulder of the two shoulders of the lever 6, increasing the shoulder, thereby reducing the force of the load 12 on the frame 7. Due to the supply of the product to the feeder 1, the force of interaction with the sensor 8 of pressure of bulk material on the feeder remains unchanged and the dispenser quickly goes to the "set mode of operation without stopping the feeder.

При выключении подачи продукта при помощи силового цилиндра 11 через рычаг 10 происходит, опускание шибера 3, который перекрывает доступ продукта на ленточный питатель 1, остающийся постоянно включенным, при этом уравновешивающий груз 5'перемещается на плече двуплечего рычага 6, уменьшая его, благодаря чему увеличивается сила воздействия груза 12 на раму 7 при уменьшении подачи продукта на 5 питатель 1. При этом сила взаимодействия с датчиком давления сыпучего материала остается неизменной при уменьшении и отсутствии продукта на питателе 1, который постоянно продол10 жает быть включенным, что значительно сокращает время выхода устройства на устойчивый режим.When the product is turned off with the help of the power cylinder 11 through the lever 10, the gate 3 is lowered, which shuts off the product access to the belt feeder 1, which remains constantly on, while the balancing load 5 'moves on the shoulder of the two shoulders of the lever 6, reducing it, thereby increasing the force of the impact of the load 12 on the frame 7 with a decrease in the supply of the product by 5 feeder 1. In this case, the force of interaction with the pressure sensor of bulk material remains unchanged with a decrease and absence of product on the feeder 1, ory constantly prodol10 zhaet be included, which significantly reduces the device output time of stable operation.

Обеспечение прекращения подачи сыпучего материала без останова ленточ15 ного питателя позволяет быстро выводить дозатор на устойчивый режим с достижением высокой точности дозирования, по сравнению с известными конструкциями устройства.Ensuring the cessation of the flow of bulk material without stopping the tape feeder allows you to quickly bring the dispenser to a stable mode with high dosing accuracy, in comparison with the known device designs.

2Q Предлагаемое устройство обладает простой конструкцией и позволяет значительно повысить эффективность и точность устройств дня непрерывного дозирования сыпучих материалов.2Q The proposed device has a simple design and can significantly improve the efficiency and accuracy of the devices of the day of continuous dosing of bulk materials.

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Claims

The invention relates to a weighing technique. A device for dosing bulk materials is known, which contains a feed hopper, under which a feed conveyor is installed with a pyeMofi adjusting the speed of the tape. The dose of the material supplied to the tape is regulated by means of a slant mounted on the exit wall of the feed hopper. TH The disadvantage of the device is that the dosage is not performed accurately enough. The most technically advanced device is a device for dispensing bulk materials, which contains a band feeder and a bunker, equipped with a weighing gate sensor, which is connected with a lever mechanism to a bulk material pressure sensor 2. The disadvantage of the known device is that in the fascic1) 1x automatic machines, frequent starts and stops, readjustment of performance are required, and these transitional operations make the tolerances on dosing accuracy much lower. The purpose of the invention is to increase the metering accuracy. The goal is achieved by those. That the gate is equipped with a drive, and the lever mechanism is made in B1 of the two-arm lever, on one of whose arms the weight is set to axially balance the load, and on the other shoulder - a fixed weight, through which this shoulder is kinematically connected with the bulk pressure sensor. The drawing is a kinematic device diagram. The device contains a supply feeder 1 with a hopper 2. In the exit wall of the hopper 2, an installer is fitted, and a gate valve 3, which through a lever mechanism 4, balancing the load 5, is freely installed on one of the double-arm levers 6, is connected to sensor 8 through frame 7 of the feeder I the pressure of the bulk material located on the feeder 1. The ribbon feeder 1 is mounted on frame 7 and connected to the drive 9. The weight gate through the lever 10 is connected to the force of the cylinder controlled by the system for starting and stopping equipment. The free end of the two shoulders lever 6 is adjacent to the frame through the load 52. The device for metering bulk materials works as follows. When the product feed to the moving belt feeder 1 is turned on, the cylinder 1 1 pulls the weight gate 3 and the flow of bulk material to the feeder 1 from the hopper 2 starts. is installed with the minimum m shoulder on the double-arm lever 6, so that the load 12 exerts maximum pressure on the sensor 8 bulk material, which maintains a constant high-speed mode of the belt П1ггател. When the gate 3 is raised, the counterbalancing weight 5 by means of the lever 4 moves on the shoulder of the two shoulders lever 6, increasing the shoulder, thereby reducing the impact of load 12 on the frame 7. The force on the feeder 1 supplies the product with the pressure sensor 8 of the bulk material. at the feeder remains unchanged and the dispenser quickly goes to the specified work schedule without stopping the feeder. When you turn off the supply of the product using the power cylinder 11 through the lever 10, the gate 3, which blocks the access of the product to the belt feeder 1, which remains permanently turned on, lowers, and this load balances 5 on the shoulder of the two shoulders 6, reducing it, thereby increasing The force of the load 12 on the frame 7 when the product supply is reduced to the feeder I. At the same time, the force of interaction with the pressure sensor of the bulk material remains unchanged with a decrease and absence of product on the feeder 1, constantly it continues to be included, which significantly shortens the time of output devices for steady rare. Ensuring that the supply of bulk material is stopped without stopping the belt feeder allows the dispenser to be quickly discharged to a steady level with high dosing accuracy, in comparison with known device designs. The proposed device has a simple design and allows to significantly improve the efficiency and accuracy of devices for continuous dosing of bulk materials. Formula of the invention A device for dosing bulk materials containing a flow cell and a booker equipped with a weighing gate sensor, which is connected with a lever mechanism to a bulk pressure sensor. material, characterized in that, with a neJibio increase in the accuracy of dispensing, the gate is equipped with a drive, the lever mechanism is made in the form of two shoulders a lever, on one arm of which is mounted for axial movement of balance weight, and at the other gsheche - a fixed load, through which shoulder is kinematically associated with the pressure sensor of the bulk material. Sources of information taken into consideration during the examination 1. Author's USSR Council No. 1259J2, cl. G 01 G 11/08, 1959.

2. USSR author's certificate number 81051, cl. G 01 G 13/04, (prototype).