SU632485A1 - Casting mould emptying unit - Google Patents

Description

one

The invention relates to foundry, in part, to the production of castings by vacuum-blende molding.

A known installation for knocking out casting molds, including a frame, a vibrating array mounted on it, above which horizontal guides are placed for a backward-moving movement of the flask load handler for moving it in a vertical plane, and a suction umbrella l.

The disadvantage of this setup is that it cannot be used for knocking out the forms obtained by the method of vacuum forming.

The purpose of the invention is to ensure the removal of synthetic spittle. .

The goal is achieved by the fact that the installation is equipped with an installed inter-vabrting grid and a flask loader with a table with a window, on one side of which an element for pressing the film is placed, a separator "mot" mounted on the material loader and located under the table a two-armed lever, one shoulder of which is hinged It is equipped with a table, and the second is intended for lifting the slack end of the film, and the suction umbrella is movable in a vertical plane. The separator flask can be made in the form of double-arm drive levers.

FIG. 1 shows the proposed installation; in fig. 2 is the same, view along arrow A in FIG. one.

The embossing installation comprises a frame with a receiving hopper 2 fixed on it, a spring-loaded inclined vibrating lattice 3, driven by an electric drive 4, and a vertical sliding suction umbrella 5. A guide 7 is mounted on the racks 6 of the frame in order to move in horizontal direction using an electromechanical drive 8; 9. In the carriage 9, there is a hydraulic cylinder Yu for the vertical movement of the flask loading device, made in the form of a plug 1 with grippers 12. On the plug 11, the separator of the flasks is fixed in the form of a double g uplechego lever 13 and a cylinder 14 for turning the lever 13. The supporting table 15 / is located in the upper part of the frame of the hopper 2 is mounted clamping element 16 and the lift 17 beneath the lower end of the film sagging. On the suction hood 5, there are clamping elements 18. The installation works as follows. The flasks 19, moving along the conveyor 20, enter with their trunnions into the grippers 12, while a vacuum is applied to the flasks with which the mold is held. Then, the fork 11 lifts the flasks 19 from the conveyor 20, and the carriage 9, driven by the actuator 8, moves them and sets them over the table 15, Next, the fork 11 lowers the flasks on the table 15c by a clamping element 16, for example a bar, and the movable suction umbrella 5 lowers on top flask. At the same time, one edge of the outer film of the bottom flask is sandwiched between the flask and the clamping element 16, and the outer film of the upper flask is pressed by the clamping elements 13 of the umbrella 5 or held by the smart suction cup. Model films are sandwiched between flasks. After the vacuum has been dropped, the bottom flask film sags on the presser element 16, the molding mixture and the casting fall onto the spring-loaded inclined vibration grating 3, the mixture spills into the receiving hopper 2 and is dropped from the pouring onto the conveyor. As soon as the flasks are freed from the mixture, the suction in the mobile umbrella 5 is intensified, the umbrella 5 rises above the flasks. At the same time, the flask divider 13 lifts the upper flask, freeing the model films, and the lift 17 raises the slack end of the lower film lip to the horizontal position. Fork 11 gripper 12 raises the flask, freeing the clamped edge of the outer film of the bottom flask. The released films are sucked through the umbrella 5 into the recovery bin. Pressure fan 21 facilitates the suction of films. The molds, castings, and casting molds released from the mold are returned to the conveyor. The installation described permits the complete mechanization of the process of separating the films from the flasks and the molding sand and removing it during the embossing of the molds. of the invention of the invention. 1. An installation for knocking out casting molds made by vacuum molding, comprising a frame, a vibrating grating mounted on it, above which horizontal guides for reciprocating movement of the charge converter with a drive for moving it into the vertical plane and the suction umbrella, characterized in that, in order to ensure the removal of synthetic films, it is equipped with a table with a window installed between the vibration grating and the loading box loader, orogo element arranged for pressing the film separator flasks mounted on the loader, and disposed under the table two-armed actuating lever, one arm of which is pivotally associated with the table, and the second is designed to lift the end provnsakndego film, wherein the suction hood is movable in a vertical plane. 2. The installation according to claim 1, so that the separator flask is made in the form of two-arm drive levers. Sources of information taken into account with the expert :; 1. Copyright certificate № 328988, cl. B 22 D 29/02, 1970.

7 8

Fi8.1

12