SU1526898A1 - Arrangement for centrifugal casting of tune billets - Google Patents

Abstract

The invention relates to foundry and can be used in the manufacture of billets by the method of centrifugal casting. The purpose of the invention is to improve the performance of the device and simplify its design. The device comprises two rotary frames 14 located on the ends of the centrifugal machine 1, on which working tools for servicing the mold of the centrifugal machine 1 are mounted on the drive carriages. By turning the frame 14, the tool is returned to its original position and the cart is inserted inside the mold of the centrifugal machine. The device allows you to quickly manipulate the working tools. 11 il.

Description

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The invention relates to foundry and can be used in the manufacture of pipe blanks mainly from heat-resistant steels by the method of centrifugal casting.

The aim of the invention is to improve performance and simplify the design.

Figure 1 shows the installation, General view; figure 2 is the same, the view in the plan; in FIG. 3, view A in FIG. 1; figure 4 - section bb in fig.Z, figure 5 - section bb In figure 1; figure 6 section GGD figure 2; figure 7 - time cut DD in figure 1; Fig.8 is a section of the EE of Fig.7; in fig. 9 - left part of the installation, plan view; figure 10 is a section of the W-W figure 9; figure 11 - section 3-3 in figure 9.

The device contains a centrifugal machine 1 with a mold 2, located on the support rollers 3, mounted on a swivel cradle 4 supported on the frame 5. Mold 2 has a drive 6, and the swivel 4 has a drive in the form of two hydraulic cylinders 7. 2 there are mechanisms for gripping the rod 9 and the cup 10, as well as driving protective roofs 11 and 12. Inside the support rollers 3 there is a sprayer 13 for cooling the mold 2. At the ends of the machine 1 there are rotary frames 14 and 15 carrying trolleys 16 with fixed on them tool workers mi At the ends of the pivoting frames 14 and 15, there are mechanisms 17 and 18 for the plane-parallel movement of working tools. The swing frames 14 and 15 have drives 19 and 20. For reciprocating the carriages 16 with working tools, there are two independent drives 21 and 22. A platform 23 is installed above the machine, on which the bucket 25 receiving and weighing device 24 is mounted. On the column 26 a mechanism 27 is opened, a stop 28 of a bucket 25 is fixed. On the column 29 there is a filling device 3 mounted on trolleys 16 there are working tools: a filling chute 31, a removal mechanism for a cup 32, an ejector 33, a removal mechanism for a rod 34, a sandbox - a spray gun 35, Cleaner 36 and the output tray 37. The water Pri- 21 and 22 have a trolley 38 and 39 with ears 40 and 41 and the carriage 16 have ears 42. For tipping tray 37 has

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with a drive 43, and for receiving a blank, a pocket, 44. On frames 14 and 15, guides 45 are fixed with axles 46, gears 47 and t-shafts 48. Position 49 denotes a cast part.

The receiving and weighing device comprises an actuator 50, a movable guide 51 and a cam 52 The ultimate control 53 of the carriages 16 is connected to the axis 54 of the rotary frame 14 by a hinged parallelogram.

The device works as follows.

At the signal about the readiness of the melt in the electric furnace, the drive 6 of the mold 2 is turned on. Slowly lower the bucket 25 onto the strain gauges by means of the actuator 50, the guide 51 and the cam 52 of the receiving and weighing device 24, guide the mechanism 27 for opening the stopper to the bucket 25 and open the stopper 28 of the Ras-Melted-Hbtft metal through the filling device 30 and The filling chute 31 enters the rotating mold 2. After pouring the required dose of metal, determined by the receiving and weighing device 24, the stopper 28 is closed, thus stopping the metal. The opening mechanism of the stopper 28 is retracted and the filling device 30 is returned to its original position. Open the protective caps 11 and 12. Rotate the pivoting frames 14 and 15 to align the axis of the working tools - the mechanism for removing the glass 32 and the mechanism for removing the rod 34 - with the axis of the machine 1. With the actuators 21 and 22, the trolleys 38 and 39 with the ears 40 and 41 are inserted. into engagement with the ears 42 of the trolleys 16 working tools, grip the rod 9 and the glass 10 and remove them with the help of the drives 21 and the swing frames 14 and 15. Turn the swing frames 14 and 15 until the ejector 33 on the right coincides with the receiving tray 37 on the left with the machine axis 1. The pusher 33 pushes the cast for otovku 49 to the receiving tray 37, and then withdrawn ejector 33 and the output tray 37 by means of independent drives 22 and 21 to the initial position. Turn the swivel frame 14 to its original position, then rotate the receiving tray 37 by the actuator 43 and

drop the workpiece 49 in the pocket 44. Return the receiving tray 37 to its original position. Rotate the pivoting frame 14 until the cleaner 36 is aligned with the axis of the machine 1, push the cleaner 36 forward and clean the inner surface of the mold 2. Return the cleaner 36 to its original position.

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Turn the pivoting frame 14 d alignment with the axis of the mask 1. Pull out the sandbox 35 and cover the inner surface of the mold with 2 sand and (or) paint. Return the sandbox - paint sprayer 35 to its original position.

The pivoting frames 14 and 15 are rotated until the removal mechanism — the installation of the cup 32 and the removal mechanism — the installation of the shaft 34 is aligned with the axis of the machine 1, then they are pushed and inserted into the rod 9 and the glass Yu into the mold 2 and secured with locks B. They return the mechanisms 32 and 34, and then the swing frames 14 and 15 to their original position. Close the protective caps 11 and 12. Rotate the casting device 30 until its axis coincides with the axis of the machine 1. Rotate the frame 14 until the axis of the chute 31 coincides with the axis of the machine 1 and enter it into the mold 2. The cycle repeats.

Replacing the casting device 30 and turning the mold 2 with the actuator 7, it is possible to make the casting of the workpiece 49 in the vertical position of the mask 1.

The proposed implementation of the device allows, due to the possibility of long-term non-replacement of the operating mold for operating tools, i.e. execution of all operations and directly on the machine, reduce the time for preparatory and working operations and thereby increase productivity, quickly regulate

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to cast the process of metal pouring, improving the required geometrical dimensions (consumption - weight) of the workpiece due to the dosing accuracy, i.e. save expensive metal, reduce size and power, i.e. simplify the design due to the location of working tools on the swing frames and a single independent drive for their movement on each frame of the turntable and due to the plane-parallel movement of working tools, secure, improve working conditions by providing free access to the ends of the machine, eliminate manual labor due to complete mechanization all operations.

Claims (1)

20 Formula of Invention A device for centrifugal casting of tubular blanks, comprising a frame, a centrifugal machine, a rotating frame with its working tools installed on its end face, and a casting device, characterized in that, in order to increase the performance of the device and simplify its design, it is equipped with an additional rotating frame mounted on the side of the end opposite the main frame of the centrifugal machine, and driven carriages mounted on guides with the possibility of their movement in the direction of the axis of rotation of the mold, the working tools are mounted on the carriages, and the drive for moving the carriages is installed alternately with driven carriages, while the guide carriages are axially rotatable on the axles and connected with an articulated parallelogram to the axis of rotation of the rotary frame . five 0 five 0 five IA kS mute 50 Ee Fy Tszig.8 zhG 111 "7 FIG. 9 w S