SU1386365A1 - Automatic pulsed-moulding block-line - Google Patents

Abstract

The invention relates to foundry and can be used in devices for the manufacture of molds with a pulse of compressed air. The goal is to improve the quality of castings, improve working conditions, expand technological capabilities, reduce labor intensity, rational use of energy resources. The automatic pulsed molding block-line is equipped with a device for cleaning the frets of the molds from the molding mixture, installed under the mechanism for moving the flasks perpendicular to the longitudinal axis of the line, a device for applying a nonstick coating, a blowing device, a submerged plate, and a protective casing fixed along the perimeter zasypnogo mechanism. The device for cleaning the frets of the mold from the molding sand is made in the form of a cylindrical brush with a rotational drive. The device for blowing the model board is made in the form of a fixed frame with nozzles installed on it, communicated by means of adjustable air flow. Pressure torus with holes in the bottom of the submodel plate. The protective casing has side walls which are parallel in space, forming a cavity filled with noise absorbing material, while a gasket is installed at the base of the casing. 3 hp f-ly, 6 ill. (L 00 00 Oi co o ate

Description

, 1 13863

The invention relates to foundry, in particular, to devices for the manufacture of foundry molds with a pulse of compressed air.

The purpose of the invention is to improve the quality of castings, improve working conditions, expand technological capabilities, reduce labor intensity, and rational use of energy resources.

FIG. 1 shows the automatic block line, general view; FIG. 2 is view A of FIG. 1; in fig. 3 is a view B in FIG. 2; Fig. 4 shows the relative positions of the interacting mechanisms when raising the table of the drawing mechanism; in fig. 5 is a diagram of a device for applying a nonstick coating and blowing air under the model plates; Fig, 6 is a section bb In Fig, 2,

The automatic block line (Figs. 1, 2) contains the roller table 1 of the flask 2 task, the flask reception mechanism 3, the flask movement mechanism 4 equipped with a cleaning flask mode 2 device made in the form of a cylindrical brush 5 with a rotation drive 6 (Fig. 3), unit 7 pulsed with a mechanism 8 broach

receiving the flasks, where the upper flask is being steamed and, using the movement mechanism 4, is set to the molding position of the pulsed unit 7. When the flask 2 is moved to the molding position, its fret is removed from the excess molding sand using a cylindrical brush 5 rotated by the receiving 6 (Fig. 1) , 2).

At the same time, the sub-model plate 10 is moved by the feed mechanism 9 under the set foot to the forming position of the pulse unit 7 (Fig. 4).

The table of the mechanism 8 protrudes from the half-form together with the sub-model plate 10 and its pairing with the flask 2 is made. With further upward movement, the pulse-charging mechanism 11 with the flask 2 and the protective casing 12 filled with noise-absorbing material 14 are made under - model plate 10 through sealing gasket 15.

After combining the aforementioned devices, the molding sand is filled in from the metering hopper of the pulse charging mechanism 11 and compacted by means of

the half-molds, the sub-model-30 supply mechanism 9 for the temporary exposure of the air to the outgoing plates 10, the pulse-charging mechanism 11 equipped with a protective casing 12, the parallel walls 13 of which form a cavity filled with noise absorbing material 14. At the base of the casing 12 there is a sealing gasket 15 ( Fig. 1.4).

In addition, the block line contains a device for applying a nonstick coating, equipped with a microswitch 16, a dispenser control unit 17, a container 19 for a nonstick coating, a pressure regulator 20, valve nozzles 35

40

low pressure (pulse) on the mixture. The compressed air, which compacted the mixture in the flask, rushes through the vents into the cavity of the model plate 10 and exits through the openings made at the base of the plate 10 partially into the atmosphere, and partially through the pressure regulator 20 into the tank 19 to create the necessary and sufficient pressure for applying a nonstick coating by means of nozzle valves 21 on the surface of the finished half-mold.

Partially also served 50

21 installed in the upper part of the air through the regulator 24 pressure -. l / J- with ypj j nozzles 23 blowing devices

submodel slab at the initial position (Fig. 5).

After the mixture is compacted in flask 2, the table of the mechanism 8 is lowered over the half-mold along with the sub-model plate 10. At the time of the passage, the microswitch is activated

26 half-molds, roller conveyor 27 issuance of 16 counter-mold application devices (Figs. 2, 6).

Automatic block line works as follows.

Flasks 2 through the roller table 1 tasks of the flasks are fed to the mechanism 3

submodel plate 10 (Fig, 5).

The block line is also equipped with a device for blowing out the model plates 10, made in the form of a fixed frame 22 With the nozzles 23 installed on it and the pressure regulator 24, a mechanism 25 for cutting off the excess mixture from the control unit, a tilter

55

Coating, which includes a control unit 17 and, through the distributor 18, the non-stick coating from the tank 19 is supplied under pressure to the injector valves 21,

five

0

low pressure (pulse) on the mixture. The compressed air, which compacted the mixture in the flask, rushes through the vents into the cavity of the model plate 10 and exits through the openings made at the base of the plate 10 partially into the atmosphere, and partially through the pressure regulator 20 into the tank 19 to create the necessary and sufficient pressure for applying a nonstick coating by means of nozzle valves 21 on the surface of the finished half-mold.

Partially also applied is a set of 16 anti-spraying devices.

Coating, which includes a control unit 17 and, through the distributor 18, the non-stick coating from the tank 19 is supplied under pressure to the injector valves 21,

by means of which it is applied to the surface of the half-mold at the time of drawing (Fig. 5). The application time of the nonstick coating is controlled by a time relay (not shown).

During the stretching flask 2 hangs on the flask transfer mechanism 4, and the submodel plate 10 is lowered with the table and hangs on the submodel slab supply mechanism 9, after which the half-form is moved to the tilter 26 by the flask movement mechanism 4, cutting off the excess mixture by the mechanism 25, half the form is cut by turning the device 26, returning the flask transfer mechanism 4 to its original position, turning the half-form, lowering the half-form from the turning device and transferring the finished half-form to the roller table 27 (Fig. 1.2).

Similarly, a second half-form is made.

The use of the proposed automatic block line will improve the quality of castings through the use of a cleaning device for ladles and a device for blowing a model board, which avoids skewing of the molds when installing them on a model board and distorting the geometric dimensions of the mold halves. In addition, the working conditions are improved due to the fact that the casing with noise absorbing material is installed on the impulsive-charging mechanism.

The technological capabilities of the block line were enhanced by applying a nonstick coating device to the surface of the mold half.

Claims (4)

1. Automatic block-line: pulsed forming, containing a pulsed-charging mechanism, a pulsed unit, tilter of half-molds, mechanism for moving flasks, mechanism for receiving flasks, mechanism for feeding submodel plates, roller conveyor for flasks, roller conveyor for lifting half-molds and a mechanism for cutting off excess mixture with control, -o-t l and - that with the aim of improving the quality of castings, improving working conditions, - expanding technological capabilities, reducing labor intensity, rational use of energy resources, it is equipped with tion for cleaning fret flasks from moldable mixtures mechanism mounted at AC € scheni flasks perpendicular to the longitudinal axis line device dl- applying nonstick coating device blowing submodel plate and a protective casing, fixed on the perimeter of pulse-Sediment mechanism. , 2. Block line under item 1, o. It means that the device for cleaning the mode of mold from the molding sand is made in the form of a cylindrical brush with a rotational drive. 3. The block line according to claim 1, characterized in that the device for blowing the model board is made in the form of a fixed frame and nozzles installed on it via a pressure regulator with openings in the lower part of the model board. 4. The block line according to claim 1, distinguished by the fact that the protective casing has side walls arranged in parallel, forming a cavity filled with sound absorbing material, while a gasket is installed at the base of the casing. G7777 /// ///////) (////) C /// U ////, eight  ////////// ////// at /// // phi.1 Vida AT ej .1  // 7 ////// Y //////// 77 vidb Fig.Z P figl 6- Z1 23 h 22 and and and s-e Yu city 6