RU2701227C1 - Carousel machine for cast ingots - Google Patents

Abstract

FIELD: metallurgy.

SUBSTANCE: for heating molds carousel machine is equipped with two gas two-row injection burners of medium pressure with ten single mixers. Burners are located one (69) – on steel stand near merry-go-round, other (70) – on bracket under molds. Anti-mold paint on the molds is applied by three-section spray gun (63) installed on the support. Mold is cooled by ten axial fans arranged on bracket on side of filled molds, wherein five fans are inclined at angle of 40°, and five – at angle of 50° to upper plane of molds. Device for extracting ingots (28) from ingot molds comprises pneumatic cylinder (26) with rod (25) with grip (24) at its end. Pneumatic cylinder is arranged on fixed steel support. Heating control device consists of a temperature sensor fixed on a support of the support, and an electronic display showing temperature of the molds. Device for counting pigs consists of a temperature sensor fixed on a support and a finished product counter mounted on a support.

EFFECT: simple design, low power consumption and high efficiency.

5 cl, 8 dwg

Description

Carousel for casting ingots refers to the field of foundry, in particular to casting in metal molds.

A known analogue is a carousel machine (source of information AS No. 1622079) containing a rotating carousel, as in the claimed device, on which chill molds (molds) are mounted. As in the filed application for the alleged invention, the carousel chill machine has a drive that provides rotation and a device for heating the chill molds.

The disadvantages are that:

- an electric chill heating device (the cost of electric energy is more expensive than the cost of natural gas);

- carousel chill machine complex in the device;

- the presence of hydraulics makes the device expensive and quite difficult to operate and repair;

- there is no device for extracting castings from chill molds;

- in the carousel rotation drive there is no device for switching carousel rotation speeds;

- the carousel for casting ingots does not have a device for controlling the heating of molds before pouring them with molten metal;

- there is no device for counting the number of cast ingots.

Due to the above disadvantages, the carousel for casting ingots cannot provide a solution to the technical problem.

A well-known analogue is a device for casting non-ferrous metals into molds (information source patent for utility model RU No. 544543U1), containing, as in the filed application for the alleged invention, a carousel with molds mounted on it, a slewing ring with a rotary drive of a carousel located near the carousel machines, a device for applying non-stick paint to the molds, a device for cooling the molds during operation and a mechanized device for extracting ingots from the molds.

The disadvantages are that:

- the removal unit is not shown clearly and unclear how it works (neither in Fig. 1, nor in Fig. 2);

- the device has a small number of molds and, therefore, low productivity;

- the metal cooling unit in the form as shown, does not provide effective cooling of the workpieces;

- in the rotation drive of the device for casting non-ferrous metals into the molds, there is no device for switching speeds of the drive;

- the device for casting non-ferrous metals into the molds does not have a device for controlling the heating of the molds before pouring them with molten metal, and there is no device for counting the number of ingots cast.

Due to the above disadvantages, it is impossible to obtain a technical result.

A known analogue is a carousel for casting ingots (source of information A.S. No. 426745), containing supports on the carousel, as in the claimed device, there are molds that have hinges on one side and a roller for manipulating the ingot on the other. from the mold. Also, the rotation of the carousel for casting ingots has a rotation drive.

The disadvantages are that:

- the number and size of pipes depend on the required flow rate of the water (they can be different, for example, with faster or less rapid rotation of the carousel, they can be different when working in winter and summer, etc.), and are determined experimentally;

- the staff of the carousel must constantly work very carefully, because if (for various reasons) liquid metal gets into the gutter with water, an explosion will occur and the staff will suffer;

- Before starting work, the carousel must be loaded with ballast.

- in the carousel rotation drive there is no device for switching carousel rotation speeds;

- the carousel for casting ingots does not have a device for controlling the heating of the molds before pouring them with molten metal;

- there is no device for counting the number of cast ingots.

Due to the above disadvantages, the carousel machine cannot provide a solution to the technical problem.

A known analogue (prototype) is a carousel for casting ingots (patent RU No. 2417132), containing a rotating carousel, as in the claimed device, on which chill molds (molds) are installed, as well as in the filed application for the alleged invention, carousel chill the machine has a drive that provides rotation, a device for heating chill molds, a device for applying non-stick paint to chill molds.

The disadvantages are that:

- the cooling fans of molten metal are located above the molds, which are filled with molten metal, therefore, the fans become very hot and often fail, causing downtime of the carousel associated with replacing the fans with new ones;

- simultaneous knocking out ingots from the ingot molds is carried out only three pieces, which reduces the performance of the carousel for casting ingots;

- due to the fact that the outer part of the welded support is made in the form of a 6-coal frame of channels and rigidly welded by six channels to the channels located in the center of the frame, as well as the fact that six of the coal frame is not fixed to the floor of the workshop when knocking out ingots the carousel is slightly swayed, while the upper surface of the ingots is “pockmarked” and even in some cases small cracks form in the ingots

- in the drive of rotation of the carousel there is no device for switching speeds of rotation of the carousel, that is, the rotation of the carousel can occur only at one speed;

- the carousel for casting ingots does not have a device for controlling the heating of the molds before pouring them with molten metal;

- there is no device for counting the number of cast ingots.

Due to the above disadvantages, it is impossible to obtain a technical result.

The objective of the invention is to create a simple, economical carousel machine for casting ingots with: a device for heating the molds before pouring them with molten metal, a device for applying non-stick paint to the molds and a cooling device for the molds during operation of the carousel machine, a mechanized device for removing ingots from the molds, device for switching carousel rotation speeds, percussion mechanism, device for controlling the heating of molds before pouring them with molten metal scrap, devices for counting the number of cast ingots ..

EFFECT: developed rotary car for casting ingots is simple in design, economical in terms of energy consumption, high-performance, having a device for heating molds before pouring them with molten metal, a device for applying non-stick paint to molds, a cooling device for molds during operation of the rotary machine, an impact mechanism , a mechanized device for extracting ingots from molds, a device for controlling the heating of molds before pouring them molten Ferrous materials, devices for counting the number of cast ingots, as well as manual switching device carousel rotational speed, allowing the carousel to rotate with three different speeds.

The specified technical result is achieved due to the fact that in the rotary machine for casting ingots containing a carousel with molds mounted on it and a drive for rotating it, according to the invention, a device is introduced for heating the molds before pouring them with molten metal, consisting of one ten gas mixing injection burner medium pressure located on the bracket under the molds and one medium-pressure gas injection burner with ten single mixers, located near carousel on a steel rack. Two gas injection ten mixing burners of medium pressure allow molds to be heated for 8-12 minutes to a pouring temperature of 220-250 ° C, thus, in general, the production cycle of ingots is reduced, labor productivity increases.

In addition, a device for applying non-stick paint to the molds is introduced into the carousel machine, which consists of three sectional spray guns with a tank mounted on a tripod, a control valve and a flexible hose that supplies compressed air. Thanks to the use of three sectional spray guns operating on compressed air in the mold for applying non-stick paint to the molds, the non-stick paint is deposited on the inner surface of the molds with a uniform thin layer, which results in a high-quality surface of cast ingots, in addition, the use of three section spray guns facilitates the time-consuming operation of manual painting of molds , and also the painting process is accelerated as all molds of the section are immediately painted.

At the same time, a device for cooling molds is introduced into the carousel machine during the operation of the carousel machine, consisting of ten axial fans located on the rack-brackets on the side of the ingot molds, five of which are tilted at an angle of 40 °, and five are tilted at an angle 50 ° to the upper plane of the molds. The input of the device for cooling the molds during operation of the carousel machine prevents strong heating of the molds, which worsens the knockout of ingots, leads to increased sticking, as well as increased fragility of the ingots when knocking them out.

In this case, the carousel rotation drive is located near the carousel, placed on two steel bases and consists of an electric motor, a coupling, a worm gear, the output shaft of which has three fixed sprockets fixed to it, a drive chain, two guide support sliders with asterisks above moving in guides, as well as a steel rim with teeth welded to the carousel. Placing the carousel rotation drive near the carousel gives a large shoulder to the carousel rotation, therefore, a small rotation force, and as a result, a relatively low power electric motor can be used, while the low power of the carousel rotation drive makes the carousel machine design economical.

Moreover, the design of the carousel rotation drive makes it possible to switch speeds, which allows you to get three different carousel rotation speeds thanks to three sprockets fixed to the output shaft of the worm gearbox. To do this, manually move the chain to the corresponding sprocket, unlocking the slide support (unscrewing four bolts), and then, after moving the chain to the corresponding sprocket, tighten the four bolts.

It should be noted that a rotary support device was introduced into the design of the carousel, consisting of a welded support in the form of a 12 coal frame, with three pipes welded in the center, a steel circle welded on top, and six holes were made in six channels of the 12 coal frame foundation bolts for fixing the carousel in the concrete floor of the workshop. Introduction to the design of a carousel machine for casting ingots of a rotary support device provides ease and smoothness of rotation of the carousel.

In addition, a device for extracting ingots from ingot molds was introduced into the design, which consists of: a tilting pneumatic cylinder with a rod, at the end of which a gripper is made, the pneumatic cylinder being placed on a steel support, with the possibility of swinging, and the steel bearing itself is fixedly mounted on a plate mounted on four supports while knocked out ingots fall on a plate conveyor. The proposed device for extracting ingots from ingot molds differs from the prototype in the simplicity of design and higher productivity, because five ingots are simultaneously extracted in the same holder.

At the same time, for the preliminary release of ingots in the molds (to eliminate “burning”, “sticking” to the walls of the molds), a shock mechanism was introduced into the design, placed under the rotary machine and consisting of: an arm welded to a steel support, a pneumatic cylinder with a rod (with a wear-resistant striker ), which is mounted 1800 mm from the beginning of the guide under the clips with the molds fixed in them, flexible hoses and the compressed air supply pedal. The operator (the knocker of the castings) controls the operation of the pneumatic cylinder from his workplace, when the pedal is pressed, compressed air is supplied to the pneumatic cylinder, the rod moves upward, a sharp blow occurs on the bottom of the holder, this eliminates the “weld”, and then the ingot is freely removed by the device for extract ingots from the molds.

It is significant to note that a device has been introduced into the design of the carousel to control the heating of the molds before casting them with molten metal; from a temperature sensor mounted on a tripod bracket and an electronic display showing the temperature of the molds before pouring them with molten metal. The optimum temperature of the molds before pouring them with molten metal that does not lead to marriage of ingots, according to practical data, is considered to be a temperature of 220-250 ° C.

At the same time, a device for counting the number of cast ingots, consisting of a temperature sensor mounted on a tripod and a finished product counter mounted on a stand, is introduced into the composition of the carousel for casting ingots. A device for counting the number of cast ingots allows each team of smelters to find out the number of cast ingots per shift.

The five figures presented show a carousel for casting ingots, as well as its individual components.

In FIG. 1. Welded support.

In FIG. 2. Carousel for casting ingots in plan.

In FIG. 3 Section AA. Location of the slewing ring on the welded support.

In FIG. 4. Section BB. Workplace operator with a device for extracting ingots from the molds.

In FIG. 5. Section B-B. Rotary drive of a carousel.

In FIG. 6. Section GG. A device for heating molds before pouring them with molten metal.

In FIG. 7. Gas double-row injection burner of medium pressure with ten single mixers.

In FIG. 8. Section DD of a gas double-row injection burner of medium pressure with ten single mixers.

The inventive carousel for casting ingots (hereinafter referred to as carousel) consists of a welded support 1 to which the lower half of the rotary mechanism of FIG. 1. In the center, the support 1 has three pipes 2 with a diameter of ∅350 mm and a height of 170 mm. For stiffness, the pipes are welded together by channels of pos. 3 No. 16, set on the rib. In the prototype, due to the fact that the outer part of the welded support is made in the form of a 6-coal frame from channels and rigidly welded by six channels to the channels located in the center of the frame, as well as the fact that the six coal frame is not fixed to the floor of the workshop when knocking out the swings of the carousel are slightly swayed, while the upper surface of the ingots is “pockmarked” and even in some cases small cracks form in the ingots. In the proposed application, the outer part of the welded support is made with a larger supporting surface in the form of a 12-coal frame 4 of channels No. 16 and is rigidly welded by twelve channels to the channels 3 located in the center of the frame. Six holes are made in six channels of the 12 coal frame 4 5 for anchor bolts. A 12-coal frame 4 is fixed in the concrete floor of the workshop with six anchor bolts 6, which exclude the possibility of swaying and displacement of the carousel during operation and the formation of “ripples” on the upper surface of the pigs and even in some cases the formation of small cracks in the pigs of FIG. 2. Details of the welded support 1 are welded by an experienced welder on a large marking plate.

On top of the welded support 1, a steel circle 7 is welded with a thickness of 20 mm onto which a single row roller bearing with cylindrical rollers and a gear ring of internal gearing is mounted, FIG. 3. The proposed roller slewing ring device has a lower specific pressure on the raceways of the rollers, compared with ball has a higher bearing capacity, better uniformity of the transmitted load, less weight and dimensions. The rotary support device consists of an inner ring 8, an upper 9 and a lower 10 outer rings and rollers 11. The inner ring 8 has a ring gear. The rollers 9 are located between the rings 8, 9. 10 and the axes of the adjacent rollers are mutually perpendicular and inclined to the vertical at an angle of 60 and 30 °. Rollers rolling along tracks B receive loads acting downward, rollers rolling along tracks G operate as gripping ones, transferring force from ring 9 to ring 10 and keeping the turntable from tipping over. The rollers are lubricated through four grease fittings in ring 9 once a month with TsIATIM-201 grease.

The ring gear of the inner ring 8 is not used in the drive, because in this case the drive power increases and, as practice has shown, due to the high starting torque, the drive chain often breaks. To the rings, the upper 9 and lower 10 are welded twelve sectors 12 cut out of steel with a thickness of 18 mm. The ends of the twelve channels 13 are welded on top of the upper ring 9 and sectors 12, and the external ends of the channels 13 are welded to the external ends of the jibs 14 made of corners 100 × 100 mm. The inner ends of the jibs 14 are welded to the lower part of the sectors 12. For the rigidity of the system, steel scarves 15 are welded to the channels 13, jibs 14 and sectors 12.

To eliminate the possibility of the carousel overturning to increase stiffness, a steel circle 16-1000 mm 20 mm thick is installed on top of the carousel in the center and is welded to twelve channels 13 of FIG. 3.

Along the periphery of the carousel, there are twelve sectors made by welding from corners 17 having dimensions of 90 × 90 mm. In each sector, the prototype has two clips with three molds in each. In the proposed application for an invention, a clip 18 with five molds 19 of FIG. 2, 4. Molds 19 are “seized” by welding to the cages 18. The cages 18 on the inside have welded U-shaped brackets-sliders 20, in the middle of each on two sides there are two rollers 21, sliding along the guide 22, and from the end there is a roller 23, which is gripped (carried away) by a gripper 24, mounted on the end of the rod 25 of the pneumatic cylinder 26. The guide 22 is mounted with an edge to the support frame 4 and has a slope to facilitate the tipping process of the five molds 19 fixed in the holder 18. When moving in the middle of the guide 22 molds 19 tilted to the horizontal at an angle of 45 ÷ 46 °. On the outside, each clip 18 has four hinges 27 allowing it to rotate through an angle of 90 °.

A device for extracting ingots 28 from ingot molds 19 is introduced into the design of a carousel for casting ingots: it consists of a tilting pneumatic cylinder 26 with a rod 25, at the end of which a gripper 24 is fixed, a guide 22 that acts as a copier, and the pneumatic cylinder 26 is placed on a steel support 29, with the possibility of swinging, and the steel support 29 itself is fixedly mounted on a steel plate 30 mounted on four supports 31, while the broken pigs 28 fall on a plate conveyor 32. The proposed device for removing pigs from molds differs from the prototype in simplicity of design and higher productivity, because five pigs 28 are removed at the same time 18. In the middle part of the guide 22 of the device for extracting pigs 28 from molds 19, rod 25 captures a U-shaped bracket with its grip 24 the slider 20 for the roller 23 and, further, rotates the cage 18 with five molds 19 and five pigs 28 in them around four hinges 27 by 90 °. At the end of the rotation, the U-shaped bracket-slider 20 hits the focus 33 and the ingots 28 from the molds 19 fall on the plate conveyor 32, which transports them to the place of assembly and linking to transport technological packages (stacks). To prevent ingots 28 from falling from the plate conveyor 32, limiters 34 of FIG. 3 are installed on its sides at a length of 3 meters. 2.4. The operator (pneumatic beater) controls the pneumatic cylinder 26, holding it by two handles 35. The operator rises to his workplace by stairs 36, holding the handrails 37. According to industrial safety rules, the operator’s workplace has a 38 guard rail 1300 mm high with a steel strip welded to the bottom pos. 39 wide 130-150 mm.

For preliminary release of ingots in the molds (to eliminate “burning”, “sticking” to the walls of the molds), a shock mechanism is used, located under the carousel and consisting of: an arm (not shown) welded to a steel support 1, a pneumatic cylinder 40 with a stem 41 (with wear resistant tip), which is mounted 1800 mm from the beginning of the guide 22 under the clips 18 with molds 19 fixed therein, flexible hoses (not shown) and the compressed air pedal 42 of FIG. 2,4 .. The operator controls the operation of the pneumatic cylinder 40 using the pedal 42 from his workplace, when the pedal 42 is pressed, compressed air is supplied to the pneumatic cylinder 40, the rod 41 moves upward, the hammer strikes sharply on the bottom of the holder 18, and the “weld” is eliminated and then the pig 28 is freely removed by the device for extracting pigs 28 from the molds 19.

At the same time, the carousel rotation drive is located near the carousel, placed on two steel bases 43, 44 and consists of an electric motor 45, a coupling 46, a worm gear 47, the output shaft 48 of which has three fixed sprockets 49 mounted on it, the drive chain 50, two guides supports 51 with sprockets 52 at the top and moving in guides 53, as well as a steel rim 54 with teeth 55 welded to the carousel of FIG. 5. The placement of the carousel rotation drive near the carousel gives a large shoulder to the carousel rotation, therefore, a small rotation force and, as a consequence, a relatively low power electric motor 45 can be used. The low power of the carousel rotation drive makes the carousel machine design economical.

Moreover, the design of the carousel rotation drive makes it possible to switch speeds, which allows to obtain three different carousel rotation speeds thanks to three sprockets 49 fixedly mounted on the output shaft 48 of the worm gearbox 47. To do this, manually drive the drive chain 50 to the corresponding sprocket 49, unlocking the guide bearings 51 (unscrewing four bolts 56 on the sliders 57 welded to the guide bearings 51), and then, after moving the drive chain 50 to the corresponding sprocket 49, tension the drive w circuit 50 by moving the support 51 and screw bolt 56. The four drive rotation of the carousel is used three phase motor power 45 W = l, 5 kW 100L8 AIR 750 rev / min FIG. 5. The teeth 55 of the steel rim 54 have a pitch equal to the pitch of the drive chain 50. Steel bases 43, 44 are fixed in the concrete floor of the workshop with anchor bolts 58. The rotation of the carousel is easy and smooth. At the fill position. 59, standing when casting metal at the trough 60 of the furnace 61, there is a pedal 62 for turning on the drive rotation of the carousel. The gutter 60 is rotatable and during casting of the metal, the pourer guides the end of the gutter into the molds 19.

In addition, a device for applying non-stick paint to the molds 19 is introduced into the carousel machine, which consists of three sectional spray guns 63 with a paint tank 64 mounted on a tripod 65, a control crane 66, and a flexible hose 67 supplying compressed air to FIG. 2, Due to the use in the device for applying non-stick paint to the molds 19 of three sectional spray guns 63 operating from compressed air, the non-stick paint lays on the inner surface of the molds 19 with an even thin layer, which leads to a high-quality surface of the cast ingots 28, in addition, the use of three sectional spray guns 63 facilitates the time-consuming operation of manual painting of the molds 19. Three-section spray gun 63 simultaneously paints all five molds in the holder 18. Ras Paint is evacuated by a stream of compressed air supplied to the spray gun 63 via a flexible hose 67. When painting the inner surface of the molds 19, the metal pourer controls the compressed air jet using a valve 66, in addition, it can change the angle of inclination of the spray gun 63 relative to the upper plane of the molds 19 using two lamb nuts 68.

A device has been introduced into the design of the carousel for heating molds before pouring them with molten metal, consisting of one ten gas mixing injection burner 69 of medium pressure located on an arm 70 under the molds 19 and one medium pressure gas injection burner 69 with ten single mixers located near the carousel . Two gas injection ten mixing burners 69 of medium pressure allow for 8-12 minutes to heat the molds to a pouring temperature of 220-250 ° C, thus, in general, the production cycle of ingots 28 is reduced, labor productivity increases. One gas ten mixing injection burner 69 of medium pressure is located in a steel sleeve 71, and it is fixed by two nuts with wings 72 on the bracket 70 with the possibility of rotation through an angle of 35 °. The bracket 70 is welded to a 12-coal frame 4. Each gas-fired ten mixing injection burner 69 of medium pressure is fixed in a steel sleeve 71 with two wing nuts 72 of FIG. 6.

The second gas of ten mixing injection burner 69 of medium pressure, is located in a steel sleeve 71 near the carousel, it is fixed with two wing nuts 72 on a steel stand 73 with the possibility of rotation through an angle of 40 °. The steel stand 73 is welded to the steel base 74, and the steel base 74 is attached to the concrete floor of the workshop with four anchor bolts 58. The gas ten injection mixing burner 69 is ten single thick-walled elements 75 united by a common welded gas distribution chamber 76, to which the fitting 77 is welded, which is supplied with natural gas of FIG. 7, 8.

Each single element 75 is a casting mixer and is a thick-walled pipe with a diameter of 60 × 10 mm and a length of 280 mm, in which four nozzles 78 are drilled at an angle of 25 ° to the axis of the mixer 75 with a countersink of the inlet part of 0.3 mm at an angle of 90 degrees. The nozzle diameter is 1.8 mm.

Each mixer 75 is obtained by investment casting from heat-resistant cast iron (chrome cast iron) of the ХХ28 brand (Cr 25-30%), in the lower part it has twelve ribs 79, which allow a flare 1.4-1.5 meters long to be obtained when burning the air-gas mixture , which is especially important for the use of burners with such mixers in the design of a carousel. A casing 80, made of sheet steel 3 mm thick, is welded to the gas distribution chamber 76 along the perimeter, into which a refractory packing mass 81 is packed.

The refractory packing mass was experimentally developed by the author and tested on gas melting furnaces for lining the burner and stuffing the space between the mixers and has the following composition:

mortar mullitokorundovy MMKF -85 40% technical lignosulfonate fourteen%; ground clay powder PHB 22% binder aluminochromophosphate MIX four%; 1K quartz sand 8%; water 12%.

A gas injection ten injection gas burner 69, which is packed with a refractory mass 81, can be dried and calcined separately before being installed in the design of a carousel. On the gas distribution chamber 76 and the casing 80 is cast cast flame-stabilizing tunnel 82 and is welded around the perimeter to the gas distribution chamber 76. The burner operates as follows. Gas under pressure is supplied through the channel 83 of the fitting 77 to the gas distribution chamber 76. The jets of gas flowing out of the nozzles 78 inject air from the atmosphere for combustion, which enters the pre-mixing chamber 85 through the channel 84, where gas and intake air are mixed. The combustion of the main part of the air-gas mixture takes place in a flame-resistant flame-stabilizing tunnel 82, the rest of which is behind the tunnel. The nominal gas pressure in front of the burner is 0.08 MPa. Due to the flame stabilizing tunnel 82, the burner can be quickly installed in the design of the carousel. The large wall thickness of the cylindrical cast mixers 75, as well as their heat-resistant material, as well as the heat-resistant material of the stabilizing flame flame tunnel 82, can dramatically increase the life of each burner. Turns on and off the injection torch 69 metal fill.

It is significant to note that a device has been introduced into the design of the carousel to control the heating of the molds before casting them with molten metal; from without temperature sensor TW 7000 pos. 86, mounted on an arm 87, a tripod 88, and an electronic display 89, showing the temperature of the molds before pouring them with molten metal of FIG. 2. Some basic sensor data

temperature TW 7000;

- range of measured temperatures 50-500 ° C; - the necessary operating DC voltage 10-34 V; - measurement error ± 1%; - measurement distance up to 5 m; - connection to equipment M12 connector.

Using the buttons for programming the operation of the sensor, the TW 7000 sensor is set to work and connected with wires to the electronic scoreboard 89. The optimum temperature of the molds before pouring them with molten metal that does not lead to marriage of pigs, for example, from aluminum alloy, according to practical data, the temperature is 220-250 ° C . Pouring, observing the temperature of the molds before pouring, regulates the pouring process.

At the same time, a device for cooling molds is introduced into the carousel machine during the operation of the carousel machine, consisting of ten axial fans 90 of the VO-14-320-4 grade, located on rack-brackets 91 on the side of the cast molds 19 and fixed in the floor of the workshop, however, five of them are tilted at an angle of 40 °, and five are tilted at an angle of 50 ° to the upper plane of the molds 19. Axial fans 90 are located in cages 92, in which they are secured by wing nuts 72 of FIG. 2. The introduced device for cooling the molds during operation of the rotary machine prevents strong heating of the molds, which worsens the knockout of ingots 28, leads to increased burn-in, as well as increased fragility of ingots 28 when knocking them out.

When casting metal in the summer, all 90 fans are turned on, in winter 4-5 are enough. The number of working fans depends on the speed of the carousel, as well as on the temperature in the workshop.

At the same time, a device for counting the number of cast ingots 28, consisting of a temperature sensor TW 7000 pos., Is introduced into the composition of the carousel for casting ingots. 86, mounted on an arm 87, a tripod 88 and a finished product counter (ingots) SGP-02 pos. 93 mounted on a stand 94 of FIG. 2. The finished product counter SGP-02 is a counting device used to count products (ingots). The proposed device provides a count of pulses that come from the temperature sensor TW7000 pos. 86. The TW7000 temperature sensor is connected by wires to the finished product counter SGP-02 pos. 93.

A device for counting the number of cast ingots allows each team of smelters to find out the number of cast ingots per shift.

The work of the carousel is as follows.

In the melting furnace 61, the metal is melted and a sample for chemical analysis is taken before casting it into the molds 19. Before draining the liquid metal into the molds 19, the carousels are heated and painted with non-stick paint. Molds 19 are heated to 220 ÷ 250 ° C with two gas ten mixing injection burners 69 medium pressure. The metal pourer turns on the supply of natural gas to two injection burners 69 and ignites the torches, then includes a carousel rotation drive. To warm the molds 19 and remove moisture from them, 2-3 turns of the carousel are enough. Paint is prepared and poured into a tank 64 for paint. Painting is carried out by three sectional spray guns 63 mounted near the carousel on a tripod 65. The pourer opens the compressed air supply valve 66, while a compressed air jet injects paint and sprayes it onto the internal surface of the molds 19. The carousel rotates, the molds 19 are suitable for controlling the heating of molds Before pouring them with molten metal, the temperature is displayed on the electronic board. If the temperature of the molds on the electronic scoreboard 89 is within 220 ÷ 250 ° C, the flight opening of the melting furnace 61 opens, the metal flows through the groove 60, filling the molds that are alternately located in the carousel sectors 19. The pourer must adjust the outflow of molten metal from the melting furnace 61 by the flying peak and turn on the fans 90.

Having passed two sectors of the carousel, the molten metal located in the molds 19 crystallizes and, when the molds 19 located in the holder 18 approach the guide 22, two rollers 21 begin to slide along the guide 22. After 1800 mm along the guide 22, the holder 18 falls into the zone action of the shock mechanism. The operator (ingot pusher) presses the pedal 42 from his workplace, while compressed air is supplied to the pneumatic cylinder 40, the stem 41 moves upward, the hammer strikes sharply on the bottom of the cage 18, and the “weld” is eliminated. Next, the molds are suitable for the device for counting the number of cast ingots 28, ingots are counted. In this case, as the clips 18 with the molds 19 move towards the mechanized device for extracting ingots 28 from the molds 19, the ingots 28 in the middle of the guide 22 have an inclination to the horizon of 45 ÷ 46 °. The casting knocker brings the rod 25 with the gripper 24 of the pneumatic cylinder 26 to the U-shaped bracket-slider 20, grabs the U-shaped bracket-slider 20 by the roller 23 and, further, rotates the clip 18 with five molds 19 and five pigs 28 in them around four hinges 27 to 90 °. At the end of the rotation, the P-shaped bracket-slider 20 hits the stop 33, ingots 28 from the molds 19 fall on the plate conveyor 32, which transports them to the place of assembly and linking to transport technological packages (stacks). To prevent ingots 28 from falling from the plate conveyor 32, limiters 34 of FIG. 3 are installed on its sides at a length of 3 meters. 2, 4. Transport technological packages are marked in accordance with GOST.

The proposed design of a carousel for casting ingots is simple, low power consumption, high productivity, smooth rotation and allows you to mechanize time-consuming operations in preparing it for work and in the process.

Claims (8)

1. A carousel for casting ingots, comprising a carousel with molds mounted on it, a rotary support device with a carousel rotation drive located near the carousel, a device for applying non-stick paint to the molds, a device for cooling the molds during operation, and a mechanized device for removing ingots of ingot molds, characterized in that it is equipped with a device for heating ingot molds before pouring them with molten metal, consisting of one gas injection burner day pressure with ten unit mixers located under the molds, and one medium-pressure gas injection burner with ten unit mixers located near the carousel on a steel rack, the carousel rotation drive is located near the carousel, placed on two steel bases and consists of an electric motor, a coupling, a worm a gearbox, the output shaft of which has three sprockets fixed to it motionlessly, a drive chain and two guide bearings with sprockets moving in the guides, and steel a rim with teeth welded to the carousel, a device for applying non-stick paint to the molds, consisting of a three-section spray gun with a paint tank mounted on a tripod, a control valve and a flexible hose supplying compressed air, a device for cooling the molds during operation, consisting of ten axial fans located on racks - brackets on the side of the ingot molds, five of which are inclined at an angle of 40 °, and five - at an angle of 50 ° to the upper plane of the molds, impact mechanism, under a rotary machine and consisting of a bracket welded to a steel support, a pneumatic cylinder with a rod, a device for extracting ingots from molds, including a tilting pneumatic cylinder with a rod, at the end of which a gripper is made, and the pneumatic cylinder is placed on a steel support, with the possibility of swinging, and the steel support is fixedly mounted on a plate mounted on four supports, while it is also equipped with a device for controlling the heating of the molds before pouring them with molten metal, consisting of a sensor temperature, mounted on a tripod bracket, and an electronic display showing the temperature of the molds before pouring them with molten metal, and a device for counting the number of cast ingots, consisting of a temperature sensor mounted on a tripod, and a finished product counter mounted on a stand. 2. The carousel according to claim 1, characterized in that it is made with the possibility of extracting five pigs at the same time located in one clip. 3. The carousel according to claim 1, characterized in that each guide bearing with sprockets is made in the lower part in the form of a T-shaped slide sliding in the guide, and in the middle part has two welded sliders. 4. The carousel according to claim 1, characterized in that the mixers, a cast flame-stabilizing tunnel of a medium-pressure gas injection burner with ten single ones, are made of heat-resistant cast iron ЧХ28. 5. Carousel machine according to claim 1, characterized in that the refractory ramming mass for filling the space between the mixers of a gas injection burner of medium pressure with ten unit has the composition,%: mortar mullitokorundovy MMKF - 85 40 technical lignosulfonate fourteen ground clay powder PHB 22 binder aluminochromophosphate MIX four 1K quartz sand 8 water 12

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