SU1119219A1 - Line of casting to moulds,mainly metal moulds faced with liquid self-hardening mixtures - Google Patents

Abstract

1) Pour into molds, mainly COKILE, lined with liquid self-hardening 11 mixtures, containing an aggregate for filling the equipment with a mixture, a rotary-extractor, a chamber for drying chills, and mechanisms for assembling chills. metal pouring, casting crystallization conveyor, chill mold knockout unit, inter-aggregate conveyors and transfer carts, from which it is equipped with a vibrating table installed between the conveyor rollers in the area of the equipment filling unit to improve the quality of castings a mixture with the possibility of vertical movement from the drive, a chamber for stabilizing the temperature of the chill molds with a conveyor belt, disposed. After the crystallization conveyor, an additional conveyor for cooling the day molds of the chill molds m above the crystallization conveyor, the crystallization conveyor you (L is filled in the form of direct and returning branches, and a device for transferring the molds from the additional conveyor for cooling the molds to the conveyor of the temperature stabilization chamber of the molds.

Description

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The invention relates to a lithic industry, in particular, to drinking in a chill mold, lined with liquid self-hardened mixtures.

The known line is cast into blitz molds, containing a facing application unit, a mold assembly unit, a casting installation, a crystallization chamber, a chip mold disassembly unit, a casting removal unit, a chill mold cooling chamber, a roller table and a transfer mechanism for the chill mold from the roller table to the roller table til.

However, on a known line it is impossible to manufacture large-sized castings, for example beds of milling machines.

The closest technical solution to the proposed one is to be cast into molds lined with liquid self-hardening mixtures (LFM) of the model LN 218 V, intended for the manufacture of large-sized castings under conditions of mass production.

This line contains a unit for filling the equipment with a mixture, a rotary-stretching machine, a mold drying chamber, assembly mechanisms, mold casting, a casting crystallization conveyor, a mold knockout unit, inter-assembly conveyors and transfer carts. . ,

After applying the cladding on the rotary-exhausting machine, the model set can be turned over and the model is stretched. The transfer of the molds to the live rolls and the return of the tooling is provided by transfer carts. The half-molds are assembled by a crane. The assembled forms are transferred to the casting area. Filling, crystallization and cooling is carried out on a single conveyor.

The return of the molds from the knockout to the lining area is carried out with a crane C2j.

The disadvantage of the line is the poor quality of the lining layer due to incomplete filling with the lining mixture and instability of the temperature of the molds coming out of the disassembly, as a result of which, at a temperature that is technologically necessary, maintenance of the chill molds is difficult, and at a temperature lower than the technologically necessary hardening of the mixture.

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The aim of the invention is to improve the quality of castings.

This goal is achieved by pouring molds, mainly chill molds, lined with liquid self-hardening mixtures, containing an aggregate for filling the equipment with a mixture, a rotary-stretching machine, a chill mold drying chamber, an assembly mechanism for chill molds, metal wiping, a conveyor for casting crystallization, a embossing unit chill molds, inter-aggregate conveyors and transfer trolleys, according to the invention, are equipped with a vibrating table installed between the conveyor rollers in the area of the equipment filling unit with the possibility of vertical movement from the drive, a chill mold temperature stabilization chamber with a conveyor located after the crystallization conveyor, an additional chill mold conveyor located above the crystallization conveyor, the crystallization conveyor being made in the form of direct and return branches and a device for transferring the chill molds from the additional chill mold transporter to Conveyor chamber for stabilizing the temperature of the molds.

FIG. 1 shows a casting line in a chill mold lined with liquid self-hardening mixtures (LSC); on .2 section AA of FIG. Ij in FIG. 3 is a view B of FIG. in fig. 4 - the same plan view; in fig. 5 - section bb (| mg.4.

The line consists of a section 1 for preparing half-molds for pouring, a roller table 2, aggregate 3 for applying a liquid self-hardening mixture on a chill mold, a vibrating table 4 mounted between the drive rollers 5 of the roller table 2 in the area of the unit 3, a conveyor 6 for curing the CSH, rotary-exhausting machine 7, conveyor 8 finishing and dyeing of chill molds, drying chamber 9 with two transport branches 10 and II for the upper and lower half-molds, conveyor 12 additional coloring and insertion of rods, filling conveyor 13 equipped with fencing 14 and exhaust panel 15, the longitudinal 16 and 17 return branches of the crystallization conveyor mounted in chamber 18, the unit for stripping and disassembling the molds 19, the conveyor 20 for cooling the molds, marked on the ceiling 8 of the stabilization chamber 21 of the temperature of the molds to t 60 CtS ° C with transport 22, devices for transferring to keels, for example, a hydraulic lift 23 from a conveyor 20 of a chill mold to a conveyor 22 of a chill mold temperature stabilization chamber, a section 24 for cleaning and blowing half-molds equipped with pneumatic brushes and suction appliances, and carts 25-29. D garden molds and tooling from the conveyor onto the conveyor, two of which 27 and 26 are equipped with targeting mechanism. Vibrostol 4 is made in the form of a base 30 with pins 31 on which the platform 32 is placed with the possibility of reciprocating vertical movement for receiving chill molds. The platform 32 is equipped with mechanical vibrators 33. Between the revolving; nn11 w the horizontal surfaces of the base 30.- the platform 32 are mounted to each other; a pneumatic pneumatic chamber 34 of variable volume, equipped with a pneumatic actuator 35. The drying chamber 9 has two zones of the same: the first for heating chill molds filled with LSS to t ° 300-400 second - to cool the chill molds to t 60-70 ° C. As much as possible for further transitions, namely placing rods, additional coloring of the chill molds. The design of the drying chamber is traditional and does not require detailed description. Trolleys 25-29-for transferring dies and accessories are made in the form of a frame 36 with a drive section of the roller table 37 and a drive 38 for the wheel set. 39.,. The carts 26 and 27 are equipped with addressing mechanisms fixed on the frame 36 and made in the form of a stand 40 with a fixed shaft 41, around which axis the drum 42 rotates with the disks 43, 44 fixedly fixed on it and the copier 45. Four lobes 46 are fixed on the disk 43 displaced one with the other, 90 (two petals conventionally shown in Fig. 5) two petals 47 are fixed on the disk 44, one petal displaced one relative to the other in FIG. 5 conventionally shown). Copier 45 is equipped with rollers 48, which are in contact alternately with mounted 194 on a rack 40 with a spring-loaded two-arm lever 49, an interacting second arm with a chill mold (rigging). Liya works as follows. . Prepared molds with a crane are installed on site 1 on the submodel slab, then the kit (plate and mold half) enters the roller table / 2 to the unit 3. applying the LCS to the chill mold. After applying the LSS to the molds, the pneumatic actuator 35 is turned on, the fluid fills the chamber 34, moving the platform 32 along the pins 31 up to a level that exceeds the level of the rollers 5 of the roller table 2 by 10 mm, vibrators 33 are turned on for 3-5 days from the best filling of the LSS pockets the molds, then the vibrators 33 are turned off, the pneumatic drive 35 is turned off, the platform 32 under its own weight and the weight of the half-molds lowers, placing the latter on the rollers 5 of the roller table 2. From the roller table 2 sets of the trolley 25 are transferred to the conveyor 6, during which it hardens s CSH, and an exhaust rotary-machine 7 where kantuyuts 180 °, produced prot buckle arrangement patterns and issuing mold and submodel dpity. a subsequent conveyor 50, from which the molds through the carriage 26 are fed to the conveyor 8 for finishing and painting the facing layer produced by means of small-scale mechanization. With an atom, the chill, which entered the section of the roller table 37 of the carriage 26, pushes the lever 49, which, through one of the rollers 48, pushes the copier 45 and the drum 42 90, as a result of which the disks 43 and 44 turn, one of the the lobes 46 and 47, appearing in the same vertical plane, close the electrical circuit (not shown in fig.) on the drive of the conveyor roller of the conveyor 8, which removes the mold from the carriage 26 and guides it to the carriage 27; lever 49, coming out of contact with the half-form, returns to its original position. Following the half-form, the undermount plate, arriving at the rolling table 37 of the carriage 26, pushes the lever 49, which now acts on another roller 48, rotates the copier 45 And the drum 42 on the next section 90, bringing into contact with the electric circuit only one of the S11

pestles 46 and the closure are now electric | actuator 38; a wheel pair 39 transporting the trolley along transverse guides 51 to the zone of the area 1 of the preparation of half-molds for casting.

The lower and upper halves of the conveyor, trimmed and painted, by means of a trolley 27 operating similarly to the transfer trolley 26, are fed alternately: the lower ones - to the transport branch 10, the upper ones - to the transport branch 1I of the suction chamber 9, from which no bridge cranes (in Fig. shown) are transferred to the re-painting conveyor 12, assemblies using bridge cranes and rods insertion using cantilever cranes 52. After assembling the kokidis, they are fed to the pouring conveyor 13, the buckets are filled with drum heads new bridge crane (not shown in Fig.). Wet chills with trolley 28 are transferred to the longitudinal branch 16 of the crystallization conveyor, from which trolley 29 are transferred to the air.

gateway 17. crystallization transporter. Further, the chill molds are transferred by means of a crane to the chill mold disassembly and disassembly unit 19.

After disassembling the mold halves, the molds are fed to the mold cooling conveyor 20, the last section of which interacts with the hydraulic ram 23, lowering the mold halves onto the conveyor 22 of the stabilization chamber 21, in which the molds are either cooled (or heated) to a temperature of + 60-. After the half-molds exit the chamber 21, the half-molds are transferred to the cleaning section 24 by a crane, where they are cleaned of residual LSC with the help of pneumatic brushes and blasting. The cleaned mold halves are transferred to the preparation section 1 for zapivka.

The implementation of the invention makes it possible to improve the quality of castings due to the improved quality of the cladding layer, and, due to a more compact layout and placement of the crystallization conveyor, to increase the removal of products per unit of production area. .L

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Claims (1)

Casting line, mainly chill molds lined with liquid self-hardening mixtures, containing an aggregate for filling tooling with a mixture, a rotary-exhaust machine, a chamber for drying chill molds, mechanisms for assembling chill molds, pouring metal, a crystallization conveyor for castings, a chill knocking machine, inter-unit conveyors and transfer trolleys, from the point of view of the fact that, in order to improve the quality of castings, it is equipped with a vibration table installed between the conveyor rollers in the area of the filling machine with a mixture with the possibility of erythical movement from the drive, a chill temperature stabilization chamber with a “conveyor located, after the crystallization conveyor, an additional chill cooling conveyor located above the crystallization conveyor, and the crystallization conveyor is made in the form of direct and return branches, and a device for transferring chill molds from the additional conveyor cooling the chill molds onto the conveyor of the chill temperature stabilization chamber.