SU1229044A2 - Production line for manufacturing building articles - Google Patents

Description

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The invention relates to the production of building materials, in particular to technological lines for the manufacture of cellular concrete products by cutting technology, and is an improvement of the known line by author. St. No. 814744,

The purpose of the invention is to increase the reliability of the line.

Fig. 1 is a top view of the processing line; in fig. 2 is a sectional view in FIG. one; in fig. 3 view B in FIG. one; in fig. 4 is a block diagram of a device for determining plastic strength.

The technological line for the manufacture of building products consists of installed along the movement forms 1, moving along conveyors 2 and 3, connected at both ends 4 by transfer devices 5-7, equipment for preparing the forms in the form of a cleaning machine 8 and machine 9 for lubrication, equipment filling the molds with a concrete mass in the form of a mixer 10 and vibrating unit I1, pre-heat treatment chamber 12 of the formed blocks and two stripping units 13.

The line includes the equipment for cutting blocks, containing a work table 14, a longitudinal cutting unit 15 mounted on a rail track 16 and a cross-cutting installation 17, and a block transfer device which consists of a carriage 19 mounted on a track 18, a lifting and lowering mechanism 20 s frame 21 On the latter, rotary flanges 22 are installed with power cylinders 23. The surfaces of the swivel beads 22, interacting with the block, are covered with elastic material 24, which serves to increase the reliability of gripping.

In addition, the line includes a device for transferring the pallet-grids in the form of a roller conveyor 25 with a pivoting stop 26 fixed to its frame with a power cylinder 27 and traverse for feeding the pallet-gratings, which consists of a moving frame 28 with a gripping mechanism 29. For feeding the pallet-grids 30 to the roller - storage 25 serves as a transfer device in the form of a standard transfer 442

Dostochnogo bridge 31, equipped with roles kami 32.

On re. the path 18 is installed the transport device 33 for

supplying the cut block 34 to the grid-plate 30 for final heat treatment in autoclaves 35.

To build plastic strength, a build sensor 36 contains a force sensor made of a conical indenter 37, a measuring spring 38, a plunger 39 and a differential transformer 40, and also a converter 41, which is a standard

M device with differential transformer circuit type KSD-3, controller 42 with unit 43 normalized plastic strength, which uses a standard block

PPR-1M, complete with KG3 devices to perform the function of on-off control, control unit 44, made on the basis of the relay controller type BU-21 and actuators 45-47 of regulatory bodies. The operation algorithm of the control unit is given in the table.

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Technological line works as follows

After cleaning the residual adherent mixture of the rotaccimis with the brushes of the machine 8 for cleaning with the help of the installation 13, the sides of the mold 1 are closed and the conveyor 2 forms I is fed to the machine 9 for lubrication, where the inner surfaces of the mold are coated with lubricant to prevent the mixture from sticking. The prepared form 1 is fed to the transfer device 5 in the zone of operation of the equipment for filling the form with a cellular concrete mass. The mass prepared in the 1-O mixer is washed down in the form 1, and the vibrating sound of the fed-up mass is produced on the vibration unit I1. Next, the transfer device 5 and the conveyor 3 for 1 served in the chamber 12 of the preliminary heat treatment.

After the mold 1 leaves the pre-heat treatment chamber, the plastic strength is measured using the device 36 to determine the ripening time of the raw material. For this, a signal from the control unit 44 is used to start the automatic device. The force sensor is hydraulically immersed in the array and the plastic strength of the array is determined. Using the converter 41, the deformations of the indenter spring are converted into an electrical signal. Thus, dp of each raw solid is determined by its plastic strength.

An electrical signal is applied to the input of the controller 42, where it is compared with the signal from the unit 43 of the controlled plastic strength.

If the plastic strength of the array corresponds to the normalized and higher than it (X O), then the signal from the output of the regulator 42 through the control unit 44 is fed to the actuator 47 and the form 1 is conveyed to the conveyor device 6 by the conveyor 3 and then to the installation 13 for stripping.

If the plastic strength of the array is lower than the normalized (X O), then the signal from the output of the controller 42 through the control unit 44 to the actuator 46, form 1 is conveyed to the conveyor device 7 and

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conveyor 2 — to unit 13 for stripping. From the control unit 44 in both the first and the second cases, a signal is received through the actuator 45 of the device 36 for measuring the gshastic strength for subsequent measurement.

The presence of a device for determining the plastic strength of an array excludes the possibility of a defect due to too low or too high plastic strength.

In order not to disturb the rhythm

15 of the operation of the line on the transfer device 7, two spare forms 1 are installed. When the forms are received with the array on the transfer device 7, the spare forms along the conveyor 2 pass

20 through the posts 13 of the stripping of the machines 8 and 9 to the transfer device 5, where they are filled with a concrete mixture. This ensures uninterrupted operation of the line, allowing the C625 to maintain a predetermined rhythm of the conveyor and exclude its forced stopping in the event of a change in the properties of the raw materials that cause a slower hardening of the raw material.

The proposed technological line for the manufacture of building products allows us to increase the work life and, consequently, reduce the scrap caused by the forced stopping of the line.

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Compiled by L, Sharova Editor M. Blanan Tehred N. Bonkalo Proofreader A. Tsko

Order 2407/13 Circulation 555 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow,. Zh-35 Razgshska nab., D / 5

Production and printing company, pr-tie, Uzhgorod, st. Design, fi

Claims (1)

TECHNOLOGICAL LINE FOR PRODUCTION OF CONSTRUCTION PRODUCTS by ed. St. Ν '814744, characterized in that, in order to increase the reliability in operation, it is equipped with a device for determining plastic strength, installed after the preliminary heat treatment chamber and consisting of a converter, a regulator with a setpoint, a control unit and a force sensor made of a conical indenter, which through a measuring spring connected to the core of the differential transformer, and actuators of transmission devices and devices for determining plastic strength, and the differential The transformer through the converter is connected to the input of the regulator, the output of which is connected to the control unit, and the outputs of the latter are connected to the actuators of the device for determining the plastic strength and transmission devices. <1229044