RU219224U1 - Device for moving capillary-porous bodies from quartz sand - Google Patents

Abstract

The utility model relates to the field of foundry production. A device for lifting and moving capillary-porous bodies made of quartz sand contains a metal rod (1) with threaded holes in the lower and upper parts, and a limiter (3) installed on it, a plate (2) connected to the lower part of the metal rod by a welding joint and bolt (5), and the eyebolt (4) is annular in the threaded hole in the upper part of the metal rod. On the rod (1) there are two guides in the form of flats for vertical movement of the limiter along them. The plate and the limiter are located relative to each other at an angle of 90°. The limiter contains a flat edge on its part corresponding to the lower level of the limiter advancement relative to the cavity, which is made in the moving body for the lifting and moving device. The shape of the limiter completely repeats the shape of the mentioned cavity in the moving body. EFFECT: reliable and safe movement of massive, large-sized capillary-porous bodies made of quartz sand, as well as quick installation and dismantling of the load gripping device. 4 w.p. f-ly, 3 ill.

Description

The claimed utility model relates to the field of metallurgy (foundry), in particular to technological equipment, namely to load-handling devices, and concerns the possibility of reliable and safe movement of massive, large-sized capillary-porous bodies made of quartz sand without the need to design individual complex hook and lift devices , as well as quick installation and dismantling of the load-gripping element from the internal cavity in the structure of the capillary-porous body of quartz sand.

The technical problem is as follows. The casting mold and the casting core are capillary-porous bodies made of quartz sand connected by a binder. For medium and large castings, massive casting molds and cores are required. At present, molding methods for model-rod equipment, as well as methods of additive technologies, are widely used. Difficulties arise in moving heavy and massive casting molds and cores, which require special adaptations of mechanized transport devices. When molding on automatic lines, there are cases when it is difficult, and with the additive method, it is impossible to install elements of hooks or lifts in the mold, which ensure a reliable and safe connection of the mold or core with the elements of load-handling devices.

From the prior art, a load gripping device is known (patent RU 2751379, B66C 1/38, published on July 13, 2021, bull. No. 20), containing a plate, an elongated gripping element located in the first hole of the plate and rigidly connected to it, the plate has a second and third openings located on opposite sides of the gripping element, in each of which there is a locking element movable along the gripping element, while one end of the gripping element located on one side of the plate has a T-shape.

Disadvantages of this lifting device:

the shape of the device does not allow for its quick installation and dismantling, and also does not provide reliable, safe fixation of the load-gripping element and transportation of massive, large-sized capillary-porous bodies.

In addition, a gripping device for products with a vertical hole is known from the prior art (invention certificate SU 1782913, B66C 1/66, published on 23.19.1992, bul. No. 47), containing a hollow body hung on the hook of the lifting machine, connected to the lower end of the body through a horizontal axis with the possibility of rotation relative to the last unbalanced body and enclosing the body, movable relative to it in the longitudinal direction of the sleeve, characterized in that, in order to increase reliability and expand operational capabilities by providing automation of cycles of capture and release of the load, the unbalance body is made with inclined groove, in which a horizontal axis is located and with a protrusion for interacting with the body, and the device is equipped with a flexible rod, one end of which is connected to an unbalanced body, and the other end is connected to a bushing located in the cavity of the body, connected to it by means of a horizontal pin with the possibility vertical movement relative to the body, made of three parts hinged to each other in series with the possibility of one-sided rotation of the latter relative to one another in a vertical plane and the interaction of the lower part with the end of the unbalanced body by a hook, the upper part of which is made with a longitudinal groove in which a horizontal pin is located, and with a protrusion for interaction with the upper end of the sleeve, and a centering frame enclosing the body, placed on the latter with the possibility of longitudinal movement and interaction with its upper end with the outer end of the sleeve, with protrusions on the side faces for interaction with the upper edge of the load opening.

Disadvantages of this gripper:

the design of the device does not allow its quick installation and dismantling, and also does not provide reliable, safe fixation of the load-gripping element and transportation of massive, large-sized capillary-porous bodies made of quartz sand.

Also from the prior art is known a gripping device for products with a hole (patent SU 1178682, B66C 1/66, published 09/15/1985), containing a body with an opening for the hook of the lifting mechanism, a gripping rod with a T-shaped head at the end, rigidly connected to body, and an element for fixing the working position of the rod, mounted on the body with the possibility of vertical movement, characterized in that, in order to increase the reliability of operation, the element for fixing the working position of the rod is a U-shaped bracket passed through the opening of the body and facing down , while the body is made with guides for the bracket.

The design of this gripping device is accepted by the authors of the claimed utility model as a prototype.

Disadvantages of this lifting device:

the shape of the device does not allow its quick installation and dismantling, and also does not provide reliable, safe fixation of the device and transportation of massive, large-sized capillary-porous bodies.

The technical result of the claimed utility model is to ensure the possibility of reliable and safe movement of massive, large-sized capillary-porous bodies, as well as quick installation and dismantling of a load-gripping device from an internal cavity in the structure of a capillary-porous body made of quartz sand.

This technical result is achieved by the fact that a device for lifting and moving capillary-porous bodies made of quartz sand (in a particular variant of casting molds or casting cores), containing a metal rod (in a particular variant of a cylindrical shape or in the form of a parallelepiped), with threaded holes in the bottom and upper parts, a plate rigidly connected to the lower part of the metal rod by a welding joint and a bolt, an annular eyebolt screwed into a threaded hole in the upper part of the metal rod, and a limiter mounted on the metal rod, characterized in that the metal rod contains two guides in the form of flats (in a particular version, guides on a metal rod are made from the end of the upper part of the metal rod, for a length of more than half the length of the metal rod), made with the possibility of vertical movement of the limiter along them, the said plate and the limiter are located relative to each other at an angle of 90 ° , while the limiter is made in a shape that completely repeats the shape of the cavity made in movable capillary-porous body made of quartz sand for lifting and moving device, and contains a flat edge on its part corresponding to the lower level of advancement of the limiter relative to the said cavity, made in a movable capillary-porous body made of quartz sand.

The essence of the claimed utility model is illustrated by graphic materials:

fig. 1 - device for lifting and moving capillary-porous bodies made of quartz sand;

fig. 2 - device for lifting and moving capillary-porous bodies made of quartz sand (top view);

fig. 3 - layout of the device in the internal cavity of the capillary-porous body of quartz sand.

A device for lifting and moving capillary-porous bodies made of quartz sand includes: a metal rod 1 with threaded holes in the lower and upper parts, as well as two guides in the form of flats located opposite each other, a plate 2 fixed with a welding seam and a bolt 5 to the lower part of the rod, an annular eyebolt 4 screwed into a threaded hole in the upper part of the rod, a limiter 3 consisting of two forked halves mounted on a metal rod 1 along the guides connected by welding, while the limiter 3 and plate 2 are mutually located relative to each other at an angle of 90°. There is a flat edge on the limiter 3 to prevent it from turning clockwise along the axis of rotation. The shape of the limiter 3 completely repeats the shape of the internal cavity of the moving capillary-porous body made of quartz sand.

In a particular version of the device, the guides on the metal rod are made from the end of the upper part of the rod with a length of more than half the length of the metal rod.

In a particular version of the device, the metal rod is made in the form of a parallelepiped.

Device for moving capillary-porous bodies of quartz sand works as follows.

The device for lifting and moving capillary-porous bodies is installed in an internal cavity, blind or through, of a special shape that repeats the shape of the device. The installed device rotates by 90°, the limiter 3 of the device automatically lowers and fixes it from spontaneous detachment from the transported load. At the bottom of the limiter 3 there is a flat edge that prevents the device from turning clockwise along the axis of rotation. Then, a hook of a lifting mechanism (not shown) is inserted into the ring of the eyebolt of the annular 4, and the device is lifted and moved along with the capillary-porous body of quartz sand. After lowering the load to the required place, the following is performed: detaching the hook of the lifting mechanism; lifting up the limiter 3 to complete exit from the internal cavity of the capillary-porous body of quartz sand; rotation of the device along the axis of rotation until it disengages from the internal cavity of the capillary-porous body made of quartz sand of the flat face of the limiter 3, after which the device is easily removed from the capillary-porous body of quartz sand.

The device is installed in such a way that, by placing it to a certain (lower) level of advancement in the internal cavity of the moving capillary-porous body made of quartz sand, it was possible to rotate it at a certain angle relative to the moving capillary-porous body made of quartz sand.

This will ensure a quick and reliable connection with the elements of load-handling devices, ensure the safe transportation of casting molds and casting cores through the technological stages of production. The device is universal, suitable for casting molds and casting cores of various shapes and dimensions. In addition, the special shape of the internal cavity and the special design of the device will reliably secure the moving capillary-porous body of quartz sand.

The claimed utility model is used in the foundries of the JSC "Scientific and Production Corporation "Uralvagonzavod" and has confirmed its technical and economic efficiency.

Claims (5)

1. A device for lifting and moving capillary-porous bodies made of quartz sand, containing a metal rod with threaded holes in the lower and upper parts, a plate rigidly connected to the lower part of the metal rod by a welding joint and a bolt, an annular eyebolt screwed into the threaded hole in the upper part of the metal rod, and a limiter mounted on a metal rod, characterized in that the metal rod contains two guides in the form of flats, made with the possibility of vertical movement of the limiter along them, the said plate and the limiter are located relative to each other at an angle of 90 °, at the same time, the limiter is made in a shape that completely repeats the shape of the cavity made in the movable capillary-porous body made of quartz sand for the lifting and moving device, and contains a flat edge on its part corresponding to the lower level of advance of the limiter relative to the said cavity, made in the movable capillary-porous body of quartz sand. 2. The device according to claim 1, characterized in that the capillary-porous bodies of quartz sand are made in the form of a mold and a casting core. 3. The device according to claim 1, characterized in that the metal rod is made in the form of a cylinder. 4. The device according to claim 1, characterized in that the metal rod is made in the form of a parallelepiped. 5. The device according to claim 1, characterized in that the guides on the metal rod are made from the end of the upper part of the metal rod for a length greater than half the length of the metal rod.

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