SU738766A1 - Automatic production line for horizontal-stack boxless moulding - Google Patents

Description

The invention relates to foundry, in particular, for flaskless horizontal-stack forming, and concerns the separation of the SLRBOW from the forms during an automatic cycle. A known automatic lineless flask forming line, comprising a vibratory lipping set, in which the working elements are two horizontal rods carrying two pairs of retracting stops and one pair of fixed stops. The rods are connected to a vibrator. Vibrating rods with their tips destroy the next form coming along the conveyor. The casting rests on the rods, mainly the elements of the gating system, and, gradually freeing itself from the remnants of the mixture, moves along the rods to the stops, where it is seized by the manipulator, and the mold is destroyed on the grate 11. This installation has the following disadvantages. Vibrating rods and grille are located on two levels, which is difficult to repair and maintain. Castings may be torn off from the elements of the gating system; A known automatic line-free forming line, comprising a device for magnetic knockout of castings from molds, having a carrier frame mounted in front of the embossing position, along the conveyor axis, and moving along guides along the conveyor axis to the embossing position and back. On the frame are mounted magnets that protrude towards the position of the knockout. Each magnet can be individually moved relative to the frame between the main position when it is pushed forward and the position when it is retracted 2, the installation has a device that deflects the magnets forward and allows them to be retracted after they enter in contact with the open cast. This operation is carried out by the carrier frame during its movement towards the embossing position. In the retracted position, the magnets are fixedly fixed relative to the frame by the locking device in the process

Move it from the position of the knockout. As a result, the castings are removed from the ScfafkQB molding material and separated from it. In the installation there is a lock of the casting of the {no-lever type with a drive, which prevents the casting bush from falling onto the grid along with the earth form, and a knurled grid, the web of which is divided into two compartments for castings and partition walls. The grid is installed at the end of the conveyor perpendicular to its axis. This installation is part of an automatic line, which additionally contains a molding machine, a core-laying machine and a potting device.

The known line has the following disadvantages., ----.,.,.,., -, -: -, -: - .-. -.- ,,:. ,,::,; “, - ,,. ... Vybivna lattice installed at an angle of 90 to the conveyor, which leads to a change in the flow of waste mixture and castings. This makes it difficult for vehicles to be removed from the position of knocking out the spent mixture and castings. In addition, with this arrangement, when using several similar lines between them, the mouth is unjustified.

- Blend a considerable distance, which leads to irrational and increased use of production space. The use of a single knockout grating divided by a partition results in a significant

the expansion of her canvas. Therefore, it is not possible to use standard grilles. In addition, the load on such a grid is uneven: on the one hand, the mixture is spent, and on the other, the casting, which impairs its performance.

Also known is an automatic line for bezopochny horizontal-stack forming, the sequentially located molding machine, the layer spreader, the conveyor for moving the collector of the mold, the casting device, the fixing means, two parallel knockers, one of which is installed behind the conveyor and coaxial with it, and a device for separating castings from driven forms for reciprocating its pairs of the allelic longitudinal axis of said grating 3.

In this line, instead of shtang, an upper grating is installed, to which the castings are transferred by a special fork forging the casting transferor. This allows you to eliminate closures when moving casting bushes.

However, in this line, due to the two-layered arrangement of the lattices, difficulty arises in their maintenance and repair. Before the bottom grating, deep failure is necessary. Castings

WKycra can tear off, fall down on the bottom grille and fall into the dump with the mixture.

The aim of the invention is to improve the conditions of Li service.

This goal is achieved due to the fact that the device for separating the castings from the molds is equipped with an additional drive for reciprocating its movement perpendicular to the longitudinal axis of the knock-out lattices mounted in a row on one horizon; the shnoy plane ...: -In FIG. 1 shows the automatic line in FIG. 2 - the same plan view; in fig. 3 a device for separating the castings from the molds and the lock of the castings on the conveyor; in fig. 4, section A-A of FIG. 3 .; /.

The automatic line includes a sandblasting molding molding machine 1m 1 and a shunting conveyor 2 sequentially and coaxially mounted. At the junction of the machine with the conveyor, perpendicular to their axis, a shuttle-type pivot bar 3 is located, behind it successively next to the conveyor 2 and perpendicular rna its axis. The filling installation 4 is located with a pneumatic actuator (not shown in the drawings). At the end of the conveyor 3 and coaxially with it, a knockout was installed, an inertial type lattice 5 for the destruction of the earth form 6. Next to it and parallel to it, there is a second inertial embossing lattice 7 for cleaning castings 8 from the remains of the molding mixture. At the end of the conveyor above the racks, a device 9 for separating castings from forms of a shuttle type mounted perpendicular to the axis of the conveyor 2 was mounted. At the end of the conveyor, along its axis above it on a microplate fixed on the frame (not shown), i fixed the casting latch 10, i

The sand-blow molding machine 1 is designed to produce a horizontal stack of forms (the form has a vertical connector) and is provided with a press-ejector plate 11.,. ,

A device 9 for separating the castings 8 of the molds 6 comprises a carriage 12 with wheels 13 mounted on rails 14 mounted on a frame (not shown in the drawings). The carriage 12 has the possibility of reciprocating

Claims (3)

moving along arrow B using a power drive (not shown in the drawings). On the carriage 12, the guide pins 15 are rigidly fastened, on which the Frame 16 is mounted on the Sliding Board by means of the hubs 17. The Frame 16 is provided with a rigidly coupled working power actuator 1.8, the chuck 19 which is hinged 6. the carriage 12. In the cavity 20 of the frame 16 is placed an electromagnet 21, consisting, for example, of the slit of the coil 22 with the cores 23. On the said frame, a false 24 is rigidly fixed, made of easily namapschivaya material, for example, steel% 45H, 50N, s recesses, contour 5 of which repeats the contour of the casting 8. This plate is rigidly connected with the coils 22 of the electromagnet, combining them into a single electromagnet. A conveyor 2 has a clamp of 10 castings 8 in the last half-form before knocking them out of the premature . The retainer is a double-arm lever 25 with a hook 26 at the end, mounted with the help of a pivot bearing 27 on the frame (not shown). The other arm of the lever 25 is pivotally connected to the working actuator 28, which in turn is pivotally fixed as a support 27 on the frame. The false 24 has a groove 29 for retracting the lever 25 from the bush cast. To 8. The automatic line works as follows .. In a sand-molding molding machine 1, a mold 6 is made with a vertical connector. At the same time, it is connected to the previous form with the help of the pushing-out plate 11 and transferred by means of the conveyor 2 to one turn, equal to the thickness of the form. After removal of the plate 11 to the initial position, the layer 3 places the rods. Then, using the casting device 4, the molds are filled with metal. Then, the molds of the conveyor 2 are moved to the embossing device, gradually cooling. Before the ground on the mold without casting falls on the grid 5, the lever 25 will press down on the casting 8 and fix it on the conveyor 2. For this, the lever 25 is in the lowered state and moves the mold to the casting 8 as it moves. When the lever stops in the casting, the movement of the conveyor stops. To better guarantee that the casting is kept in shape from falling onto the grate 5, more than half of the casting bush is placed in the following form, and less in the previous one. Then carriage; ka 12 is interchanged on the position opposite the form, we are casting to the stop (not shown in the drawings) so that the false plate 24 takes up the position against the casting 8, and the contour of its excavation coincides with the contour of the casting. The electromagnet 21 is turned on (the false plate is magnetized), and then, using an actuator 18, the false plate is pressed against the casting, and it attracts it. Then, using the actuator 28 and the hinged-lever system 30 hook 25, through the groove 29 is retracted upwards. The false casting plate is retracted along the arrow B. Then the carriage 12 is moved to the POSITION above the knockout grid 7, where the electromagnet is disconnected, and the casting 8 falls on the said grid, where the core and molding sand is separated from it. The conveyor 2 moves the mold 6 to the next step, and the earth clod falls on the grid 5. At the same time, after the casting is removed from the mold, the lever 25 is lowered, and as the conveyor moves, it passes through the earth closure all the way into the casting, fixing it. The cycle is then repeated. Formula of the Invention An automatic line for bezopochny horizontal-stack forming, containing successively forming automatic molding machine, core layer, conveyor for moving the assembled form, casting device, fixing means, two parallel knock-out grids, one of which is installed behind the conveyor and coaxially therewith, and a device for separating castings from driven forms for reciprocating movement thereof parallel to the longitudinal axis of said lattice, differs in In order to improve its service conditions, the device for separating the castings from the molds is provided with an additional drive for reciprocating its movement perpendicular to the longitudinal axis of the knock-out gratings mounted in a row in one horizontal plane. Sources of information taken into account in the examination 1. US patent number 3749151, cl. 164-322, 1973 .. 2. US patent N 3923095, cl. 164-404, 1975. 3. USSR author's certificate; application number 2084460/02, cl. B 22 D 47/02, 1974: four V / x / -.  } ten m rlliUiniM1-i: l Fig f