SU84708A1

SU84708A1 - Dosing hopper for molding and core sands

Info

Publication number: SU84708A1
Application number: SU372303A
Authority: SU
Inventors: А.А. Атабек
Original assignee: А.А. Атабек
Priority date: 1947-12-22
Filing date: 1947-12-22
Publication date: 1949-11-30

Description

Известные устройства дозирующего бункера дл формовочных и стержневых смесей сложны по своей конструкции и недолговечны в эксплуатации.The known devices of the metering hopper for molding and core mixtures are complex in their design and short-lived in operation.

В предлагаемом бункере применена одна основна подвижна деталь , св занна в один блок, и предусмотрена автоматическа компенсаци износа и приработки к шиберам уплотн ющих обечаек.In the proposed bunker, one main moving part is applied, connected in one block, and automatic compensation of wear and running-in to the gates of the sealing shells is provided.

На чертеже изображен бункер дл формовочных и стержневых смесей.The drawing shows a hopper for molding and core sands.

Дозирующий бункер состоит из конуса / с жесткосв занной с ним мерной коробкой 2, горизонтально передвижных щиберных задвижек 3 и 4 с грузом 5, упруго прижатых к задвижкам 3 vi 4 уплотн ющих обечаек 6 Е 7 к пневматического привода 8.The dosing bunker consists of a cone / with a rigidly connected measuring box 2, horizontally movable sliding bolts 3 and 4 with a load 5, elastically pressed against the valves 3 vi 4 sealing shells 6 Е 7 to the pneumatic actuator 8.

При включении привода 8 дозирующий бункер выдает порцию земли , при выключении его под действием груза 5 или пружины происходит возврат щиберных задвижек 3 и 4 в исходное положение и заполнение мерной коробки 2 новой порцией земли.When the drive 8 is turned on, the metering hopper issues a portion of the earth, when it is turned off under the action of load 5 or a spring, the spherical gate valves 3 and 4 return to their original position and the measuring box 2 is filled with a new portion of earth.

Взаимное смещение щиберных задвижек 3 и 4 устанавливаетс в зависимости от угла естественного откоса материала, с учетом скорости передвижени задвижек. Регулирование объема дозы материала производитс изменением рассто ни между шиберными задвижками 3 ti 4.The mutual displacement of the gate valves 3 and 4 is established depending on the angle of repose of the material, taking into account the speed of movement of the valves. The regulation of the volume of the dose of material is made by changing the distance between the gate valves 3 ti 4.

Предмет изобретени Subject invention

Claims

1. Dosing hopper for molding and core mixtures with two connected and displaced valves, characterized in that, in order to reduce the time for dispensing the dose of molding mixture while simultaneously moving the slide gate valves, the front edge of the upper valve is offset relative to the trailing edge of the lower valve on angle of repose of the mixture, adjusting it to the speed of movement of the valves.

2. The form of the dispensing bin according to claim 1, characterized in that the lower valve is made movable in relation to the upper valve.

3. The form of the dispensing bin according to claim 1, characterized by the use of shells, elastically pressed against the valves.