JPH09314318A - Metallic mold movable continuous gravity casting line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an equipment having high operational ratio and profitability by moving plural casting metallic mold successively and simultaneously executing different operation. SOLUTION: At the time of moving the casting metallic mold 21 to a mold opening and core inserting device 3, an upper mold part of the casting metallic mold 21 is opened upward by the mold opening device and a lower mold is moved to the front side during executing the taking-out of a casting by a casting taking-out device 1, and the core is inserted by a worker, thereafter the lower mold is returned back to the original position and the mold clamping is executed. During this operation, a casting metallic mold 22 is laid on an inclining casting system casting device 4, and molten metal is supplied into a sprue part of the casting metallic mold by a robot 5 for supplying the molten metal. Thereafter the supplied molten metal is filled up into the metallic mold by an inclining casting mechanism, and a casting metallic mold 23 is laid in a casting solidify-cooling device 7 to accelerate the solidification of the casting. Further, a casting metallic mold 24 on a metallic mold shifting device 8, a casting metallic mold 25 in the metallic mold preheating device 10 and a casting metallic mold 26 on the metallic mold moving device 11 are laid, respectively and plural casting metallic molds are continuously moved to the following process successively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of casting dies through a die moving device using a drive type roller conveyor,
By moving it, one casting machine can cast with the number of casting dies according to the production volume, and the dies can be replaced without interrupting the casting work, which has high productivity and low equipment cost. The present invention relates to a mold moving type continuous gravity casting line facility.

[0002]

2. Description of the Related Art Conventional mold moving type continuous gravity casting equipment (hereinafter referred to as "equipment") has equipment for fixing a casting die to one casting machine and performing a series of casting operations. Further, there is a facility in which a plurality of casting machines, each having a fixed casting die, are installed on a circular rotary base table, and a series of casting operations are performed by rotating the base table. For smaller molds,
According to the method of moving the casting die by the die-equipped cylinder transfer device, one casting machine is used to cast a specific number of casting dies.

Prior art documents relating to this type of equipment are: (1) a method and apparatus for casting bottomed parts disclosed in JP-A-4-66256, and (2) full mode casting disclosed in JP-A-64-34572. There are inventions such as devices. In these inventions, a large number of molds are arranged in a series of mold conveying units (mold transfer devices), and each operation such as a mold temperature adjusting unit, a molten metal pouring unit, a cooling unit or a mold disassembling unit for controlling the molds. The device is provided.

[0004]

In the conventional casting equipment in which the casting mold is fixed to one casting machine, the casting machine is fixed on the ground, and therefore the size of the cast product, the presence or absence of the core, the hot water supply, It depends on the automation of the removal of castings. Therefore, the number of casting machines that the casting operator can work and manage is two to three, and the productivity is not high.

Further, the following problems are considered in the above-mentioned prior art documents. First, in the invention of (1), the continuous casting equipment for moving the casting mold by the cylinder-equipped mold transfer device pushes the casting mold into the casting machine by the cylinder-equipped mold transfer device. A stand is sufficient and the amount of capital investment can be reduced. However, on the other hand, it is difficult to simultaneously control a plurality of dies by moving the dies by the die-equipped die transfer device, so that the number of casting dies in the casting line is necessarily limited. Also, due to restrictions on cylinder stroke, etc.
There is a problem that it becomes a casting facility for small castings and is not suitable for various types of production from small to large ones.

Next, in the invention of (2), in a continuous casting facility in which a casting machine having a plurality of casting dies fixed thereto is installed on a circular rotary base stand, the base is rotated to take out the product, Since the casting and hot water supply casting processes can be decentralized and the work of each process can proceed simultaneously, it depends on the size of the casting machine, the solidification cooling time of the cast product, and the like. Therefore, the number of casting machines that the casting operator can work and manage will be four to six, and the productivity will certainly be high. However, on the other hand, it is difficult to change the operating casting mold due to the fluctuation of the production amount. This allows
In some cases, the productivity and the operating rate for each casting machine are reduced. Especially when replacing the casting mold, it is necessary to interrupt the casting work, which also leads to a decrease in productivity and operating rate, or because one casting machine is required for one casting mold, There are problems such as a large investment in casting equipment.

[0007]

In view of the above, the present invention provides
Each casting device is independently deployed, and each casting device is set to an independent transfer device, and the number of molds for independent casting can be arbitrarily set within a certain range, and the casting work can be performed without interruption of the casting work. It is intended to reduce the cost of casting equipment, improve the productivity and the operation efficiency, or perform a large variety of productions from small items to large items, as a configuration for loading and unloading in and out of the casting line.

That is, according to the present invention, a plurality of transfer devices are provided in a substantially square shape, a plurality of casting dies are placed on the transfer devices, and the casting dies are sequentially moved. In a gravity casting method in which molten metal is poured into to continuously produce cast products, a mold opening core inserting device, a casting device, and a solidification cooling device provided in the transfer device are independently provided, and the casting is performed. In addition to decentralizing a series of casting work operations such as product removal, core insertion, hot water supply, casting, solidification cooling, different casting mold solidification cooling time depending on the shape and size of the casting product, different casting dies , Within a certain range, and provided with a mold loading and unloading device that can arbitrarily set the number of casting dies, using the mold loading and unloading device independent of the transfer device, without interrupting the casting operation , Change mold Which is characterized in that performed the fast, a series of casting operations decentralized in each step, which is efficiently performed configure different tasks simultaneously.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION In the mold moving type continuous gravity casting line facility of the present invention having the above-mentioned structure, the casting mold is placed on a drive type roller conveyor (an example of a transfer device; Using the electric control of the drive type roller conveyor, a plurality of casting dies are moved to each process equipment, and a series of casting operations are carried out by the product extraction core insertion process (mold opening core insertion device), hot water supply casting process ( (Casting device), solidification cooling process of cast product (casting product solidification cooling device), mold preheating cooling process (mold preheating cooling device), and the like. This makes it possible to perform continuous casting operations such as core insertion into the mold (core set), hot water supply, solidification cooling of the cast product, and removal of the cast product simultaneously, resulting in improved productivity. Can be achieved.

Further, by providing a mold loading / unloading device between the solidification cooling process of the cast product and the mold preheating cooling process,
When casting a casting mold that has been precoated with a coating mold and preheated in the external setup, and when taking out the casting mold that has been idled without inserting the core and the hot water supply process, take it out of the casting line. Can be performed without interrupting a series of casting operations. Therefore, the mold replacement time, which has been a concern in the past, can be omitted.

Further, a plurality of electrically controlled drive type roller conveyor units, which are used for guiding during positioning and movement, are manufactured according to the length of the casting die mounting plate, a solidification cooling device for castings, and a die. By installing it on the preheat cooling device, it is possible to stop the casting die on any unit, so that the casting die can be adjusted against changes in the solidification time of the casting due to the production volume, die and size of the casting. It is possible to arbitrarily set the number of casting dies on a line within a certain range, and as a result, the operation efficiency can be improved.

[0012]

An embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the mold moving type continuous gravity casting line equipment of this embodiment comprises a casting product take-out device 1, a mold opening core inserting device 3 provided in a drive type roller conveyor unit 2, and a drive type roller. Gradient casting method casting device 4 provided on the conveyor unit 2, hot water supply robot 5, melting furnace 6, casting solidification cooling device 7 provided with a plurality of drive type roller conveyor units 2, mold provided on the drive type roller conveyor unit 2. 8. Transfer device 8 and mold loading / unloading device 9 provided on the drive type roller conveyor unit 2. It comprises a mold preheating cooling device 10 provided with a plurality of drive type roller conveyor units 2, and a mold transfer device 11 provided in the drive type roller conveyor unit 2.

The drive type roller conveyor unit 2 shown in FIG. 2 is manufactured according to the size of a standardized casting die mounting plate used for guiding during positioning and movement. The single unit is
It is driven via a sprocket and a chain (an example).

By this drive type roller conveyor unit 2, a casting mold described later is moved between the respective devices and circulated, so that a cast product can be manufactured. Therefore, as shown in FIG. 3, the casting mold is movable on the drive type roller conveyor and is fixed to each device by a hydraulic clamp each time, so that the upper and lower mounting surfaces are flat and parallel. , Has a standardized mounting plate.

When the casting mold 21 shown in FIG. 1 is moved to the mold opening core inserting device 3, the upper mold part of the casting mold 21 is opened upward by the mold opening device, and the casting product take-out device 1 is used.
The lower mold moves forward while the casting is being taken out,
Here, after the worker inserts the core (sets the core), when the lower mold returns to the original position, the mold is clamped. During this time, the casting mold 22 is in the casting apparatus 4 of the inclined casting system, and the hot water supply robot 5 supplies hot water to the spout of the casting mold. After this hot water is supplied, the inclined casting mechanism (not shown) melts the molten metal in the mold. And the casting die 23 is in the casting solidification cooling device 7, and the solidification of the casting is accelerated. Further, a casting die 24 is present on the die transfer device 8. Further, the casting die 25 has a casting die 25 in the die preheating cooling device 10, and the casting die 25 is preheated and cooled as required. A casting mold 26 is present on the mold transfer device 11.

In this way, a plurality of casting molds are successively and sequentially
By moving to the next process, each casting operation is decentralized, and different operations are carried out at the same time, resulting in a casting line with higher productivity than a conventional casting line, and a casting machine that accounts for a large proportion of the casting line equipment cost. In this example, since only one unit is required, the capital investment amount can be kept low. It should be noted that there is no problem in continuous casting even if the plurality of casting molds 23 and the like are not located outside each apparatus, and continuous casting is possible even if the plurality of casting dies 21 to 31 are inside each apparatus.

If the casting die 31 shown in FIG. 1 is preliminarily subjected to coating preparation, die preheating, and other external preparations, the die loading / unloading device 9 allows the die preheating cooling without interrupting the casting operation. It can be placed in the device 10. In addition, the casting mold 21
When the core opening operation is stopped while the mold opening core insertion device 3 is present, and the hot water supply robot 5 and the inclined casting method casting device 4 are idled, the casting mold 21 is cooled by the casting solidification cooling device 7, It can be taken out of the casting line from the mold loading / unloading device 9 without moving the mold transfer device 8 and interrupting the casting work of other casting molds. In this way, other casting dies during casting can be arbitrarily taken out.

By installing a plurality of drive type roller conveyor units 2 shown in FIG. 2 to the casting solidification cooling device 7 and the mold preheating cooling device 10, the number of units can be increased by the casting molds 21 to 21. It is possible to hold 31 on each of these devices. Further, for example, a casting die 23 or the like, which is not required for casting work, does not hinder continuous casting even if it is not on each device. Therefore, the number of casting dies can be changed within a set value according to the production amount and the like, casting can be performed according to the situation, the economy is high, and the equipment can be effectively used.

The drive type roller conveyor unit 2 is
Drive motor 2a, sprocket 2b, sprocket 2c for roller conveyor, roller conveyor unit 2d
And a chain 2e as main constituent elements. In addition, the casting mold 21 (as a general rule, other casting molds 22 and the like are the same) includes an upper mold 21a, an upper mounting plate 21b, and an upper extruding plate 21c.
, Lower die 21e, lower mounting plate 21e, and lower extrusion plate 2
The main components are 1f.

[0021]

According to the mold moving type continuous gravity casting line equipment of the present embodiment, the casting mold is placed on the transfer device, a plurality of casting molds are sequentially moved, each casting process is dispersed, and different works are performed at the same time. By performing the above, compared to the conventional casting line, the equipment can be made more productive, or the casting mold that has been prestaged outside and the casting mold for idle operation can be cast through the mold loading and unloading device. It has the features that it can be arbitrarily put in and taken out without interruption, and that it is a facility with a high operating rate that does not require mold replacement time.

Further, by providing a place on the casting line where a plurality of casting dies can be held and a transfer device provided on this location, it is possible to change the number of casting dies according to the production amount, etc. Become.

Further, the ratio to the equipment cost of the casting line,
For example, an expensive casting machine can be installed in one unit, so that it is possible to keep the capital investment low, or if the size of the transfer device is set to a certain size, a guide,
By standardizing the casting die mounting plate that is positioned, it is possible to manufacture many types of small to large products on the same casting line.

[Brief description of drawings]

FIG. 1 is an overall layout diagram.

FIG. 2 is an enlarged detailed view of a drive type roller conveyor unit, in which (a) is a side view and (b) is a plan view.

FIG. 3 is an enlarged side view of a casting mold.

[Explanation of symbols]

 1 Casting product take-out device 2 Drive type roller conveyor unit 2a Drive motor 2b Sprocket 2c Roller conveyor sprocket 2d Roller conveyor 2e Chain 3 Mold opening core insertion device 4 Gradient casting method casting device 5 Hot water supply robot 6 Melting furnace 7 Casting product Solidification cooling device 8 Mold transfer device 9 Mold loading / unloading device 10 Mold preheating cooling device 11 Mold transfer device 21 Casting mold 21a Upper mold 21b Upper mounting plate 21c Upper extrusion plate 21e Lower mold 21d Lower mounting plate 21f Lower extrusion Plate 22 Casting mold 23 Casting mold 24 Casting mold 25 Casting mold 26 Casting mold 31 Casting mold

Claims (1)

[Claims] 1. A structure in which a plurality of transfer devices are provided in a substantially rectangular shape, a plurality of casting molds are placed on the transfer device, and the casting molds are sequentially moved, and a metal melted in the casting molds. In a gravity casting method for continuously producing a cast product, a mold opening core inserting device provided in the transfer device, a casting device,
And a solidification cooling device are independently provided, and a series of casting work operations such as the removal of the casting, the insertion of the core, the hot water supply, the casting, and the solidification cooling are dispersed, and the casting is made according to the shape and size of the casting. Different casting dies of different solidification cooling times, different types of casting dies are provided with a die loading / unloading device that can arbitrarily set the number of casting dies within a certain range, and the dies independent of the transfer device. A mold moving type continuous gravity casting line facility characterized by being able to quickly perform mold replacement without interrupting the casting operation by using the input / output device.