JPS585746B2 - centrifugal casting equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to centrifugal casting equipment.

In conventional centrifugal casting equipment, a tube pulling device is placed opposite one end of the rotating metal frame, that is, the end corresponding to the socket of the tube to be cast, and the tube is pulled out along the ring platform. The material was rolled and moved to the side of the rotating metal frame, and transported to the heat treatment furnace via an appropriate transport route.

Therefore, after the tube is pulled out from the rotary metal frame, it takes time to cool down before it is delivered to the heat treatment furnace, and a lot of energy has to be consumed for heat treatment.

In addition, since transport equipment and its installation location are required, the equipment is wasted.

In order to solve these problems, the present invention has developed a centrifugal system that can be directly transported into a heat treatment furnace after being pulled out from a rotating metal frame, and can also be attached to one end of the rotating metal frame without any problems. For the purpose of providing casting equipment, one embodiment thereof will be described below based on the drawings.

Reference numeral 1 denotes a stationary rotating metal frame, in which a core mounting device 2 corresponds to one end 1a on the socket side of the casting pipe, and a core mounting device 2 faces the other end 1b, and a pouring device 3 and a coating device (Fig. (not shown) and other working devices are installed.

The rotating metal frame 1 is placed on a pair of rotating rollers 4 and is rotatably supported, and its outer periphery is covered with a metal frame hood 5.

The core mounting device 2 includes a cart 7 that is movable back and forth with respect to the rotary metal frame 1 on a stand 6 that is erected with an extension space of the rotary metal frame 1.
, a rotating arm 8 whose base end is supported by the cart 7 so as to be movable up and down, and one end 1a of the rotating metal frame extending from the tip of the rotating arm 8 at the downward rotating position of the rotating arm 8. a guide rod 9 which extends vertically opposite to the guide rod 9 and which extends horizontally on the carriage 7 in the upward rotational position;
and a core support mounting part 10 whose position can be adjusted along the guide rod 9.

Reference numeral 11 denotes a conveyor for transporting the cores to a position above the pedestal 6. The cores fed to one end 11a of the conveyor 11 are transferred to a trolley by a core feeder 12 that grasps the cores and moves and raises and lowers them. 7 is fitted into an upwardly facing support mounting part 10.

A heat treatment furnace 13 is disposed adjacent to the end of the core mounting device 2 on the side opposite to the rotary metal frame 1.

The heat treatment furnace 13 includes a receiving chamber 14 into which the tube p pulled out from the rotary metal frame 1 is transported in its entirety, and a receiving chamber 14 connected to the receiving chamber 14 via an opening/closing door in a direction perpendicular to the tube axis direction. The receiving chamber 14 has a heat treatment chamber (not shown), and is configured to quickly transfer the pipe p carried into the receiving chamber 14 into the heat treatment chamber.

Reference numeral 15 denotes a pull-out cart for pulling out the tube p from the rotary metal frame 1 and transporting it as it is into the heat treatment furnace 13. is movable on a guide rail 16 laid between the outer position of the opposite end and is provided with a chucking device 17 for gripping the pipe p.

Reference numeral 18 denotes a drive device for the pull-out cart 15, and the drive motor 1
A pull-out cart 15 is attached to a winding drum 20 which is rotationally driven by a winding drum 9.
A wire 21 connected to the rear end is wound, and a wire 23 connected to a bracket 22 protruding from the lower part of the pull-out truck 15 is connected to the winding drum via a sheave 24 arranged near one end 1a of the rotating metal frame. 20, 26, 27a, 27b, and 27c are guide sheaves, which are wound with the winding direction reversed;
Reference numeral 28 denotes a tension weight, which is appropriately disposed on the pedestal 25.

Reference numeral 29 and 30 denote a tube support truck that supports the tube p pulled out from the rotary metal frame 1 from below, and is movable along a guide rail 31 laid concentrically with the guide rail 16. A portion of the rail 31 adjacent to one end 1a of the rotating metal frame is provided on a lifting platform 33, 34 installed in the pit 32.

35 is the rotary mold 1 of the metal frame hood 5 and the heat treatment furnace 13;
This is a dust-proof hood that wraps and covers the core mounting device 2 between the side ends thereof, and is connected to a suction duct 36 equipped with a suction fan 37.

Next, to explain the operation, prior to casting, the core mounting device 2
After fitting the core to the support mounting part 10 in an upward position at a position above the carriage 7, the rotating arm 8 is rotated downward, and then the rotation arm 8 is rotated downward.
is moved toward the rotating metal frame 1, and a core is attached to one end 1a of the rotating metal frame.

Next, while the rotary metal frame 1 is rotated at high speed, molten metal is poured into the interior by the molten metal pouring device 3, and the pipe p is centrifugally cast.

When the casting is completed, the front cover in which the core was fitted is removed from the rotating metal frame 1 by the support mounting part 10, and then the rotating arm 8
rotates upward.

In this state, the pull-out cart 15 is placed under the stand 6 of the core mounting device 2.
A space is created through which the

Next, the pull-out cart 15 moves toward the rotating metal frame 1,
After gripping the socket of the tube p from the inside by the chucking device 1T, the extraction cart 15 moves rearward, and the tube p is pulled out from the rotating metal frame 1.

Lifting platform 33 on which the straight pipe part of the pipe p is lowered in the pit 32
When it reaches above the upper tube carrier 29, the lifting platform 33 rises and supports the socket side end of the tube p from below.

Furthermore, when the tube p is pulled out and the insertion end comes to one end 1a of the rotary metal frame, the elevating table 34 rises and the insertion side end of the tube p is supported by the tube support cart 30.

In this state, the drawing cart 15 moves further and the tube p is carried into the heat treatment furnace 13 as shown in the figure.

Thereafter, the chucking device 17 of the pull-out truck 15 is released, and only the pull-out truck 15 is moved to the outside of the heat treatment furnace 13.

The pipe p carried into the receiving chamber 14 of the heat treatment furnace 13 is appropriately carried into the heat treatment chamber.

Thereafter, the same operation as above is repeated.

In this way, the tube p cast in the rotary metal frame 1 is carried into the heat treatment furnace as it is following the drawing operation, and during this operation, the support mounting part 10 of the core mounting device 2 is moved along the moving path of the drawing cart 15. At the same time, the core is fitted between them and prepared for the next casting.

Additionally, a metal frame hood 5 covering the outer periphery of the rotating metal frame 1 and a heat treatment furnace 1 are also provided.
3 is covered with a dustproof hood 35, the parts where dust and smoke are generated are completely covered, and the working environment in the factory is improved. Since they are arranged side by side with the core mounting device 2 in between, the dustproof hood 35 can be small and simple.

According to the centrifugal casting equipment of the present invention, as is clear from the above description, the heat treatment furnace is disposed on one side of the rotary metal frame in the axial direction with a core mounting device that can be rotated to the retracted position sandwiched therebetween. At the same time, since a movable pull-out truck is provided between these, the tube body can be pulled out from the rotary metal frame by moving the pull-out truck and then immediately transported to the heat treatment furnace without hindrance to the casting work. , it is possible to reduce cooling of the tube body, save energy in heat treatment, and make equipment compact and inexpensive.

[Brief explanation of the drawing]

The drawing is a schematic front view showing an embodiment of the present invention. 1... Rotating metal frame, 2... Core mounting device, 5... Metal frame hood, 6... Frame, 7
...Dolly, 8...Rotating arm, 9...
...Guide rod, 10... Support mounting part, 13...
...Heat treatment furnace, 14...Reception chamber, 15...
... Pulling trolley, 17... Chucking device,
18... Drive device, 29, 30... Tube carrier, 35... Dust-proof hood, 36...
・Suction duct.

Claims (1)

[Claims] 1. A heat treatment furnace is installed on one side of the rotary kettle frame in the axial direction, with a rotatable core mounting device sandwiched between a position facing one end of the rotary kettle frame and a position retracted from the extended position of the rotary kettle frame. What is claimed is: 1. A centrifugal casting equipment, characterized in that it is equipped with a chucking device for gripping the tubular body, and is provided with a drawing carriage movable between an outer position at an end opposite to the rotary metal frame.