SU1757890A1 - Arrangement for molding structures from concrete mixes - Google Patents

Abstract

Usage: in mobile installations for the manufacture of products from concrete mixes. SUMMARY OF THE INVENTION: Contains a feed bunker 15 placed on the frame 1 of the cart, mounted in the vertical guides of the weights 5, a form 8 located under it with the exciter 10 oscillator mounted on one of its sides and a mechanism of vertical movements. The latter is kinematically connected to the form by means of flexible links 9. The form is provided with pins 11 fixed along its transverse axis. The frame is equipped with brackets with catchers and shock absorbers on which the pin I1 of the form 8 is supported. And the length of flexible links 9 exceeds their distance of mouth fixing form 8 in its lower position to the mechanism of vertical movement. The causative agent of 10 oscillations is located in the lower part of the form 8. 6 Il,

Description

The invention relates to mobile devices for the manufacture of elements of building structures or pavement parts of concrete mixtures using vibration.

A known mobile machine for the manufacture of concrete block bricks, comprising a frame, a mounted multi-place mold with a vibrator mounted on it, a pressure punch — a load for vertical compaction of the concrete mix in the form, at least three levers for moving the form and a pressure punch,

The disadvantages of this machine include a large number of power levers for successively performing manual operations on lifting-lowering the multi-seat form, lifting-lowering the push puzonos-prigruz, combined lifting-turning prigruz to remove it from the form, which requires a high intensity of labor. Along with a significant intrinsic mass of the structure, this necessitates its maintenance by two workers.

Also known is a machine for the non-pallet manufacturing of concrete blocks, comprising a multi-seat form with a vibrator fixed on it, a weigher with guide rollers, a frame mounted on road rollers with horizontal guides fixed on it to move the weights into the non-working along

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position when loading a form with a concrete mixture, a lever mechanism with an arc sector equipped with flexible bodies for lifting and releasing forms, made with the possibility of lifting the weights to the upper position directly by the form, coupling device for fixing the weights to the guide rollers when lifting them to the extreme position equipped with a release lever.

The disadvantage of such a machine is the presence of vertical guides fixed on the frame to move the mold with the weights. which determines the direct effect of vibration not only on the form with the load, but also on the whole machine, as a result of which, to compensate for the effect on the additional mass, it is necessary to increase the power of the vibrator motor, and this reduces the efficiency of concrete block production. On the other hand, the effect of vibration on the machine as a whole creates conditions for discomfort for the operator. In addition, sliding friction necessitates the application of additional muscular effort by the operator or an increase in the overall mass of the machine in the form of additional balancing of the lever mechanism.

The closest to the proposed invention is a device for molding concrete mix products, comprising trolleys placed on a frame, a feed bin and mounted 5 vertical guides of the weights, a bottomless shape located below it with an oscillating agent fixed on one of its sides, and a mechanism of vertical movements, kinematically connected to form through flexible connections.

The disadvantage of this device is high energy costs during operation and the complexity of its maintenance,

The purpose of the invention is to provide ease of operation and reduce the energy intensity of compaction processes.

The goal is achieved; by the fact that in the device for forming articles from concrete mixes, which contains a trolley placed on the frame, a feed bin and mounted in vertical guides of the weights, a bottomless shape located under it with exciters fixed on one of its sides, and a kinematically connected mechanism with the form by means of flexible connections, the form is equipped with fixed pins, the frame - with brackets having catchers and shock absorbers mounted under them, on which the pins are supported

forms, with the length of flexible links exceeding the distance from their fixation on the form in its lower position to the mechanism of vertical movement, and the exciter is located in the lower part of the form.

Figure 1 shows the device, a general view; figure 2 - section aa in figure 1; on fig.Z - section B - B in figure 2; figure 4 - view In

figure 1; figure 5 is a node in figure 4; on figb - type G in figure 1.

The vibromachine contains a frame 1, mounted on two fixed and one rotary rollers. On racks rams 1

horizontal guides 2 are fixed with a movable carriage 3 mounted on them, provided with vertical guides 4 of the weights of the weights 5, and the rods have the possibility of adjustment

according to the height of the stroke of the weights, v setting up a three-dimensional lattice, the bottom plate of which in the plan is identical in configuration by a moldable block, and a spring-loaded lever 6 is mounted on the upper section

the hitch, which engages with the wedge lock of the carriage 3. On the uprights of the frame there is a mechanism for vertical movement of the form, consisting of circular sectors 7, sabzhen U-shaped lever with a counterweight, partially compensating for the mass of the form 8 and the weights 5, Flexible connections 9 are fastened with one end at the beginning of the curved surface of the sectors, and the other end in

the lugs of the form 8, which is a rectangular shell with bridges and hollowing formers, on one of the walls of which is fixed the causative agent of 10 oscillations, and on the adjacent walls - a cylindrical pin 11, located coaxially. The frame 1 is equipped with two brackets 12, fitted with shock absorbers 13, on which catchers 14 are mounted, coaxially vertically with pins 11 of form 8, and

also a hopper 15, a magnetic actuator of the vibration exciter 10.

The balanced lever 16 of the vertical movement mechanism bears on itself a push-button post for switching on the magnetic actuator and a wedge lock of the upper form position.

On the lower plane of the carriage 3, there is a limit switch 17, which turns off the exciter when the mold 3 is lifted with the load 5 in the upper position by means of the lever 16 of the vertical movement mechanism.

Vmbrostanok works as follows.

Lowering the lever 16 of the mechanism of vertical movement down until the wedge lock is activated, lift the form 8 With the load 5 to the upper position, the loading hitch with the carriage 3 works, moving them along the guides 4 up to the stop of its pins 11 into the cradle 14. After loading into feed hopper 15 a portion of the concrete mix, press the Start button on the lever 16, which includes the exciter 10, and after filling out the form, move the carriage 3 to its original position until it stops. The spring loaded lever b of the hitch is pressed, as a result of which the load 5 under the action of gravity moves to the surface of the concrete mixture in the mold.

After the mixture is compacted, the lever 16 is lowered down until the wedge latch engages. Here, when lifting a form 8 with a weight of 5, the latter at the intermediate stage will press the limit switch 17, turning off the power supply to the exciter 10 oscillations when the form 8 releases the finished products.

Rolling the vibrator to the working step by means of the lever 16, the cycle is repeated.

Thus, the reduction of the direct impact of vibration on the structure of the vibrating machine as a whole due to the vibration vibration of the mold and the weights from the main structure by means of pins interacting

with catchers mounted on the shock absorbers of the frame brackets, it is possible to reduce the installed power of the exciter of vibrations, and the simplicity of the design - to reduce the metal consumption, which in unit terms per unit of output is one of the main competitiveness indicators.

formulas

A device for forming articles from concrete mixes containing a feed bunker placed in the trolley frame m3 and installed in vertical loading weights, a bottomless form located under it with a vibration activator fixed on one of its sides and a vertical movement mechanism kinematically connected with the form

by means of flexible connections, characterized in that, in order to ensure ease of operation and reduce the energy intensity of compaction processes, the truss is provided fixed coaxially along its transverse

ori pins, frame brackets, having catchers and shock absorbers mounted under them, on which form pins are supported, and the length of flexible connections exceeds the distance from the place of their fixation by

form in its lower position to the mechanism of vertical movement, and the exciter is located in the lower part of the form.

J 8 11

13

Thebes. four

6-5

t

g

EZTS;

FIG. five

Type G

Claims (1)

10 claims A device for molding articles made of concrete mixtures containing a feed hopper located on the trolley frame and installed in vertical guiding weights, a bottomless shape located underneath it with a vibration exciter fixed on one of its sides and a vertical movement mechanism kinematically connected to form 20 by means of flexible connections, on the basis of the fact that, in order to ensure ease of use and reduce the energy intensity of compaction processes, the mold is provided coaxially fixed along its transverse . 25 axles with pins, frame-brackets having catchers and shock absorbers mounted under them, on which the pins are supported. forms, and the length of the flexible connections exceeds the distance from the place of their fixation by 30 forms in its lower position to the vertical movement mechanism, and the pathogen is located in the lower part of the form. FIG. 4