UA52895A - Installation for molding of concrete articles - Google Patents

Abstract

Installation for molding of concrete articles contains a vacuum chamber with transverse carrying walls mounted on shock absorbers, in which additional bunker is located and a molding device in the form of driving clip is mounted, which covers immovable and mobile punches with excitator of oscillations. Vacuum chamber is equipped with charging hole with its sealing cover ocated above the bunker, which is moved together with the clip in the vacuum volume with the help of hydraulic drives with rods, which are moved horizontally above the container with spring-loaded pallet.

Description

Description of the invention

The invention relates to the field of manufacturing concrete products from hard and especially hard mixtures. 2 A well-known installation for forming concrete mixtures, which contains a vacuum chamber with a sealed cover and a vibration platform installed in it, with a vibration exciter placed under the slab and a mechanism for vertical movement, a stamp, a pallet and a mechanism for pushing out the finished product (a.s. USSR Mo907194 Cl. E 048 21/06,

B.V. Mo7, 1982).

There is also a well-known installation for the manufacture of products from rigid dispersed construction mixtures, which contains 70 fixed and driven punches, along the surfaces of which a clip with holes is moved by a hydraulic drive, and between them the product is formed in a vacuum chamber with a hopper and an unloading lock (Association of the USSR Mo880734, Cl B28B 1/08, B.V. Mo42, 1984.).

The disadvantages of these installations are: 1. Difficulty sealing the vacuum chamber; 12 2. Difficulties in ensuring movement on punches; 3. The difficulty of removing the clip of the molded product with the need to seal the vacuum chamber.

A device for forming construction products mainly from hard concrete mixtures (a.s.

USSR Mo895666, Cl. V/288 3/12, B.V. Mo1, 1982), which holds drive shafts placed under the hopper with drums mounted on them with semi-forms in the form of depressions on their outer surfaces, while the drive shafts are equipped with vibration exciters and are made hollow, perforated and spring-loaded relative to the body, the hopper - with a hermetic cover , while the latter and the body are connected to the vacuum source, and the shafts are connected to the coolant source. The disadvantages of this device are: 1. Impossibility of changing the shape of the product; 2. Low quality of molded products;

Q. The complexity of the installation design. "

As a prototype, an installation for the production of products from rigid dispersed construction mixtures (a.s. USSR Mo975401, Cl. V/288 1/08, B.V. Mo43, 1982), which contains a vacuum chamber installed on elastic supports with with a hermetic hatch and transverse load-bearing walls, with a spreading hopper and a forming device mounted under it in the form of a drive clamp with an upper window and covered by the latter fixed on one of the transverse load-bearing walls with a fixed punch with a vibration generator and an oppositely located FU connected to the power cylinder of a movable punch, while the vacuum chamber is equipped with a hermetic elastic casing, which covers a fixed punch fixed respectively on the supporting transverse wall and one of the ends of the clip, an elastic seal placed between the end of the clip and the power cylinder fixed on the second transverse supporting wall, at the same time, the clip is spring-loaded 39 relative to the load-bearing transverse wall. at

The disadvantages of the prototype are: 1. The complexity of the installation design; 2. Unreliability in operation. "

The signs that coincide with the installation for forming concrete products are: With 70 - a vacuum chamber with transverse load-bearing walls installed on shock absorbers; c - expenditure bunker; z" - a forming device in the form of a drive clip, which includes a stationary and a movable punch; - cause of oscillations.

The task of the invention is to improve the design of the installation and ensure the reliability of its operation.

The task is achieved by the fact that the installation for forming concrete products contains a vacuum chamber with transverse load-bearing walls installed on i-th shock absorbers, in which there is a spreading hopper and a forming device mounted under it in the form of a drive clamp with an upper window and covered by the latter fixed on one transverse bearing wall of a fixed punch with an oscillator of oscillations located opposite to it connected to the power cylinder of a movable punch, and the vacuum chamber is equipped with

Te) 20 in a container sealed with it, equipped with a spring-loaded pallet.

The design solution of the installation for the formation of concrete products has a number of new features, which ensures the presence of significant differences in comparison with analogues and the prototype. 1. Introduction of new features: - the vacuum chamber is equipped with a loading hole with a sealing cover; 25 - unloading container with a spring-loaded pallet. in. Such technical solutions eliminate the need to depressurize the installation after the formation of each individual product and ensure the formation of products until the mixture is completely consumed. The loading of the rigid concrete mixture into the hopper and the removal of the container with the molded products coincide. In addition, there is no need for a belt conveyor. Thus, improving the design of the installation ensures economic 60 efficiency of work and allows to increase its productivity. 2. A partially new combination of features: - the hopper moves together with the clip in a vacuum volume; - hydraulic drives with a stamp that move the hopper with the clip.

These technical solutions ensure the reliability of the installation. When moving the hopper with a hydraulic drive, which happens in the prototype, the clip moving along the punches is skewed, since the point of application of force is one-sided and this point is significantly removed from the axis of the clip. Taking into account the dispersion of the mixture being formed and the imperfection of the constructive solution, there are frequent delays with the need for ongoing repairs. 3. New arrangement of features: hydraulic drives, vibration exciter, pallet hole.

Figures 1, 2, 3 schematically show the general view of the installation for forming concrete products in sections.

The installation for forming concrete products consists of a vacuum chamber 1, with cross-bearing walls, which is mounted on shock absorbers 2 and equipped with a loading hole C, a sealed cover 4, with a rubber gasket 5, and a receiving container b, sealed with a rubber gasket 7, and equipped with a pallet 8 with a shock absorber 9, in the middle of which there is a hopper 10 with an outlet 11, the lower part of which is attached to 70 a clip 12, which is horizontally moved by hydraulic drives 13 with rods 14, along a stationary punch 15, a power cylinder 17, the space between which forms a forming chamber 18 The fitting 19 is connected to a vacuum pump (not shown).

The installation for forming concrete products works as follows.

Through the charging opening C, a hard dispersed mainly concrete mixture is fed into the hopper 10, which /5 also fills the forming chamber 18, after which the loading hole C is sealed with a cover 4 with a rubber gasket 5 and with the help of a fitting 19 of the vacuum chamber 1, the mixture in the hopper 10 and the forming chamber the chamber 18 is vacuumed, and after the calculated time, the vibration vacuum is activated by turning on the vibrator placed in the fixed punch 15. Next, the mixture is formed by moving the movable punch 16 to the side of the stationary punch 15. After the mixture is formed, the clip 12 together with the hopper 10 is moved to the side of the power cylinder 17 , and the punch 16 is returned to its original position (Fig. 2, 3).

The molded product under the action of its own weight is lowered into the container 6 onto the spring-loaded pallet 8. The container is designed for the number of products when the entire mixture from the hopper 10 is consumed.

By means of hydraulic drives 13 with rods 14, the clip 12 is moved to the extreme right position together with the hopper 10, the mixture enters the forming chamber, and the process is repeated until the mixture is completely consumed, after which the vacuum chamber 1 is depressurized through the fitting 19 and when the hopper 10 is positioned under the loading hole C is loaded with the mixture, the container with products is removed, and an empty container b is installed in its place, the loading opening C is sealed with a cover 4 with a rubber gasket 5, and the forming process is repeated. iv)

Claims (1)

30 Formula of the invention Fo , , c Installation for forming concrete products, which contains a vacuum chamber installed on shock absorbers with transverse load-bearing walls, in which an additional hopper is placed and a forming device c 35 mounted under it in the form of a drive clip that embraces stationary and movable punches with a vibration generator, which differs in that the vacuum chamber is equipped with a loading hole with a sealing cover located above the hopper, which moves together with the clip in the vacuum volume using hydraulic drives with rods that move horizontally above the container with a spring-loaded pallet. « 40 - p Fig. 1:z» Fig. 2 Fig. From 1 to Official Bulletin "Industrial Property". Book 1 "Inventions, useful models, topographies of integrated circuit microcircuits", 2003, M 1, 15.01.2003. State Department of Intellectual Property of the Ministry of Education and Science of Ukraine. se) sl 60 b5