JP2842518B2 - Casting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a casting apparatus having a plurality of casting units on a turntable, and in particular, molds provided in each casting unit can be easily replaced. In addition, the present invention relates to a casting apparatus having a preheating furnace for preheating the mold to be replaced.

[0002]

2. Description of the Related Art In a conventional turntable type casting apparatus, respective molds forming the casting unit are mounted on a turntable using fastening means such as bolts and nuts. Things. The work for replacing these molds is performed by manually tightening or loosening the bolts and nuts by an operator. The new mold whose mold has been exchanged in this manner is preheated by being heated (heated) to a predetermined temperature by a burner or the like. In this way, the casting operation is performed by pouring the molten metal into the mold heated to a predetermined temperature.

[0003]

However, in the above-described conventional apparatus, since the mold replacement is performed manually by an operator, special skills are required for the mold replacement work. In addition, there is a problem that it takes a lot of time to replace the mold. Furthermore, after the replacement work is performed, the newly installed mold must be preheated. Since this preheating work is also performed using a burner or the like, the entire mold is preheated. Requires a lot of time. In order to solve such a problem, a lock device is provided so that the mold can be easily attached / detached, and a preheating furnace for preheating the mold in another process is provided. It is an object (problem) of the present invention to provide such a casting apparatus.

[0004]

Means for Solving the Problems In order to solve the above problems, the present invention takes the following measures. That is, regarding the casting apparatus having a plurality of casting units on a turntable, each of the above casting units is
A plurality of upper, lower, and horizontal dies are provided, and a lock device is provided for holding these dies in a detachable manner. Further, each of the dies is preheated. And a preheating furnace for this purpose.

[0005] In the above structure, the lock device may include a power cylinder comprising a hydraulic cylinder or the like, and a lever or link driven by the power cylinder.
Furthermore, a link mechanism formed by a rod or the like is provided, and the upper and lower dies are detachably held at the tip of the lever of the link mechanism. I decided to take it.

[0006] In the casting apparatus having the above-mentioned configuration, the preheating furnace may be configured such that a mold to be preheated in the preheating furnace is uniformly heated (heated) in an atmosphere in the preheating furnace. It was decided to adopt a configuration consisting of

[0007]

According to the present invention, the following functions are provided. That is, when the molds are exchanged, as shown in FIG. 2, each mold 11, 12, 13 of the casting unit 1 fixed on the turntable 9 by the lock devices 2, 3, 3 '. Must be in a free state (free state). For this purpose, as shown in FIG. 4, it is necessary to flip up the levers 21, 31 of the lock devices 2, 3, 3 'to make the upper mold 11 and the lower mold 12 free. Among these, first, in order to make the upper mold 11 free, it is necessary to operate the lever 21 which presses the upper surface of the die bracket 111 which forms a part of the upper mold 11. Accordingly, first, by operating the rod 22 and the link 23 by actuating the power cylinder 25 of the locking device 2 causes splashed upward by the lever 21 to the fulcrum O _29-point is a point of attachment to the stay 29. As a result, the upper mold 11 is released from being pressed upward, and thus can be freely removed.

Next, in order to make the lower mold 12 free, it is necessary to operate the lever 31 which fixes the die base 121 of the lower mold 12. To do so, first,
By operating the power cylinder 35 of the lock device 3, 3 ′, the lever 31 is jumped upward through the link 33. Thereby, the lower mold 12 is free with respect to the space above the lower mold 12.

Next, in order to set the horizontal molds 13 in a free state, the horizontal presser 1 which presses each horizontal mold 13 from all directions is used.
It is necessary to remove 33 (see FIG. 3). For that purpose, first, the power cylinder 131 supporting the horizontal presser 133 is operated to release the holding of the horizontal die 13. Thereby, each horizontal mold 13 is in a free state. By these operations, all the dies 11, 12, and 13 forming the casting unit 1 are mounted on the die base 121 forming the lower die 12, and are free to the upper space. In such a state, the terminal portion of the die base 121 is captured by catches 59 and 59 ′ provided at the distal end portion of the carrier 55 forming the transfer device 5. Thereby, as shown in FIG. 4, the die assembly 15 including the dies 11, 12, and 13 is lifted upward. In such a state, by moving the carrier 55 along the slide rail 54, the carrier 55 is moved to a predetermined die storage location or the like.
The die assembly 15 can be moved.

On the other hand, in this manner, the die assembly 1
As shown in FIG. 1, a new die assembly 15 heated to a predetermined temperature in the preheating furnace 7 is installed in the casting unit 1 from which the casting unit 5 has been removed. That is, the die assembly 15 preheated to a predetermined temperature (about 500 ° C. to 700 ° C.) in the preheating furnace 7 is placed on a pallet 75 made of a heat insulating material, It is transported to. When the carrier 55 comes to pick up the die assembly 15 in such a state,
At 9, 59 ', the preheated die assembly 15 is lifted through the die base 121. In such a state, the carrier 55 moves on the slide rail 54 of the transport device 5 and moves to a predetermined station on the turntable 9. That is, the die assembly 1 preheated to a predetermined temperature by these operations.
5 is conveyed onto a predetermined casting unit 1.

In such a state, the carrier 5
5 is lowered as shown in FIG. 1, and the die assembly 15 is set on a predetermined casting unit 1. In the state where the die assembly 15 is installed at the predetermined position in this way, as shown in FIG.
The lever 21 of the lock device 2 is fixed on the die bracket 111 of the upper mold 11. That is, the lock device 2
Is locked to fix the upper mold 11. Next, the lock devices 3 and 3 ′ for fixing the lower mold 12 are operated, and the lever 31 is moved to the die base 12 of the lower mold 12.
1 at the end. Thus, the lower mold 12 is fixed. Further, the horizontal molds 13 are fixed from the four sides by the horizontal presser 133 and the power cylinder 131 (see FIG. 3). As a result, the die assembly 15 preheated to a predetermined temperature, that is, each of the upper mold 11, the lower mold 12, and the horizontal mold 13 is moved to a predetermined casting unit 1.
Will be fixed on top.

The dies 11, 12, and 13 are
As shown in FIG. 1, since the preheating is performed by the atmosphere in the preheating furnace 7, the entire molds are uniformly heated, and the temperature distribution is uniform. Therefore, in the casting unit 1 in which the dies 11, 12, 13 in such a state are mounted, the pouring station 91 shown in FIG.
, The casting operation can be immediately started. in this way,
In the present invention, since the entire mold is preheated uniformly in the atmosphere of the preheating furnace 7, there is no unevenness in the preheating of the mold, and the conventional test hitting, throwing away, etc. Is omitted, and energy saving is achieved.

As described above, each of the dies 11, 12, 1
Since all of the detaching work of 3 is performed by remote control, the manual work of the operator is omitted, and the safety of the work is secured even for the mounting work of the preheated high-temperature mold. Will be done. In addition, the work efficiency can be improved. Therefore, the mold exchanging operation is performed efficiently, and the loss time for mold exchanging can be reduced.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the configuration of this embodiment is such that a plurality of casting units 1 are installed on a turntable 9.
And a lock device 2, 3, 3 'for detachably holding the upper mold 11 and the lower mold 12 of the molds 11, 12, 13 of the casting unit 1, and the respective molds 11 , 1
A transfer device 5 for removing the molds 2 and 13 from the casting unit 1 in an assembled state (die assembly 15) and exchanging a mold, and a preheating furnace 7 for preheating a new mold provided for the mold exchange. , Basically.

In such a basic configuration, in the present embodiment, the casting unit 1 adopts a tilt type gravity casting system, and the casting unit 1 of this type is shown in FIG. As shown in FIG. 2, four (four) units are installed on the turntable 9. As shown in FIGS. 2 and 3, the casting unit 1 includes divided dies, that is, an upper die 11, a lower die 12, a horizontal die 13, and the like. Each of these molds forms a set of die assemblies 15 as a whole. As shown in FIGS. 2 and 3, the horizontal mold 13 is held (fixed) from all sides by a power cylinder 131 composed of a hydraulic cylinder or the like and further via a horizontal presser 133 as shown in FIGS. ). In the above configuration, the power cylinder 131 that performs various operations is a hydraulic cylinder in this embodiment, but may be an electric cylinder driven by an electric motor or the like in addition to the hydraulic cylinder. good.

The upper mold 11 is held by the lock device 2 so as to be detachable. Then, the lock device 2 is, as shown in FIGS.
A lever 21 rotatably mounted on a stay 29 provided on the turntable 9 via an attachment point O _29, and an intermediate point between the levers 21 and near the attachment point O _29. At a point O ₂₁ , a link 23 is provided so as to be rotatable with respect to the lever 21, and at a point O ₂₂ on the lower end side of the link 23, a relative rotation with respect to the link 23 is enabled A provided rod 22;
And a power cylinder 25 such as a hydraulic cylinder that drives the rod 22 in the vertical direction.

By operating the power cylinder 25 having the above structure, the rod 22
And the link 23 is pulled down, whereby the lever 21 is operated, and the distal end portion 211 of the lever 21 is operated.
The upper surface of the die bracket 111 forming a part of the upper mold 11 is pressed. Then, the upper mold 11 is fixed by the pressing. Conversely, by operating the power cylinder 25 to operate the rod 22 and the link 23 upward,
The lever 21 is rotated motion by attachment points O ₂₉ as a fulcrum, as shown in FIG. 4, let flipped upward, whereby those are so as to release the fixing of the upper die 11. In the above configuration, the power cylinder 25 is
In this embodiment, a hydraulic cylinder is employed,
Instead, an electric cylinder or the like driven by an electric motor or the like may be used.

Next, the lower mold 12 is held by a lock device 3, 3 'provided on the turntable 9 so as to be detachable. As shown in FIGS. 2 to 4, the lock devices 3 and 3 ′ include a power cylinder 35 formed of a hydraulic cylinder or the like, and a hook that is allowed to swing through a rod 32 provided on the power cylinder 35. Lever 31, a link 33 rotatably attached to an intermediate portion of the lever (hook) 31, and a lower end of the link 33 rotatably attached to the link 33. And a stay 39 installed in the section. Therefore, the lower mold 12 is attached via the lock devices 3 and 3 'so that the lower mold 12 can be attached and detached by a one-touch operation. In the above configuration, the power cylinder 35 is a hydraulic cylinder in the present embodiment, but may be an electric cylinder driven by an electric motor or the like instead. As described above, the dies 11, 12, and 13 forming the casting unit 1 of the present embodiment can be easily attached and detached by various one-touch mechanisms.

Such a one-touch type locking device 2,
The die assembly 15 installed in each casting unit 1 is removed from the casting unit 1 and transported to a predetermined station via the third and third ′ s. Also, the preheated die assembly 15 is transported from the preheating furnace 7. As shown in FIGS. 1 and 4, the transfer device 5 is basically composed of a carrier 55 for transferring the die assembly 15 and a slide rail 54 on which the carrier 55 slides. is there. As shown in FIG. 4, the carrier 55 includes a slider 52 that slides on the slide rail 54, a frame 51 formed continuously with the slider 52, and a plurality of hydraulics attached to the frame 51. Power cylinder 53 composed of a cylinder or the like
And a plurality of catches 59, 59 ′ which operate in the up-down direction by the operation of the power cylinder 53 and catch the die assembly 15.

The catches 59, 59 ′ of the carrier 55 having such a configuration catch the die base 121 of the die assembly 15, and form a die assembly 15 composed of the upper die 11, the lower die 12, and the horizontal die 13. As shown in FIG. 4, the die assembly 15 is lifted, and then moved on a slide rail 54 to transport the detached die assembly 15 to a predetermined position, for example, a die storage location. . On the contrary, the transport device 5 is
As shown in FIG. 1, the die assembly 15 preheated to a predetermined temperature in the preheating furnace 7 is transported from the preheating furnace 7 to a predetermined casting unit 1.

As shown in FIG. 1, a preheating furnace 7 for pre-heating (preheating) the die assembly 15 having the above-described structure to a predetermined temperature includes a housing 71 made of a heat insulating material and a heat insulating material. Pallet 75 made of wood
The die assembly 15 is housed inside the housing 71 and the pallet 75 in a heat-insulated state. Further, the die assembly 15 housed in the preheating furnace 7 is heated by the atmosphere in the preheating furnace 7. Therefore,
The die assembly 15 preheated in the preheating furnace 7 includes:
Unlike the conventional method in which the local part is heated by a burner or the like, the entire mold is heated uniformly.

As a result, since the entire mold has a uniform temperature distribution state, when the mold is installed in the casting unit 1, the casting process can be immediately started, and the loss time for mold replacement is reduced. Will be The preheating temperature of the die (die assembly 15) by the preheating furnace 7 having such a configuration is set in a range of about 500 ° C to 700 ° C. The die assembly 15 preheated to such a temperature, as shown in FIG.
5 is mounted on the transfer device 6 while being mounted on the transfer device 5, and transferred to a predetermined position. Then, at this position, the carrier is captured by the carrier 55 of the transport device 5, and is transported to a predetermined position in this state. Then, in this state, for example, at the attaching / detaching station 95 shown in FIG. 5, the preheated new die assembly 15 is set on the casting unit 1, and further, as shown in FIG. It is designed to be fixed via

The operation of this embodiment having the above-described configuration will be described. The operation mode of the present embodiment is basically the same as that described in the section of the operation. That is, in exchanging the dies 11, 12, and 13 installed on the casting unit 1, first, FIG.
As shown in (1), the lock devices 2, 3, 3 'for fixing the dies 11, 12, 13 and the horizontal presser 133 for holding the horizontal die 13 are released. In such a state, the carrier 55 forming the transport device 5 is lowered, and is formed on the lower surface of the lower mold 12 by catches 59 and 59 ′ provided at the tip of the carrier 55. The die base 121 is captured. In such a state, the power cylinder 53 provided on the carrier 55 is operated to
59 'is pulled up, and the die assembly 15 is pulled up. And carrier 5 in such a state
By moving the die assembly 5 to a predetermined position, the detached die assembly 15 is transported to a predetermined die storage place or the like.

Next, the die assembly 15
As shown in FIG. 1, the die assembly 15, which has been preheated to a predetermined temperature in the preheating furnace 7, is carried onto the casting unit 1 from which is removed by the carrier 55. Then, the die assembly 15 is set on the casting unit 1 by lowering the carrier 55. In such a state, the molds 11, 12, and 13 forming the die assembly 15 are fixed on the turntable 9 by operating the lock devices 2, 3, 3 'and the like as shown in FIG. The die assembly 15
The fixing operation is performed simply and remotely by operating the lock devices 2, 3, and 3 'by one-touch operation. In this way,
Casting unit 1 with new die assembly 15 installed
Since the mold is already sufficiently preheated in the preheating furnace 7, the casting unit 1 is immediately moved to the pouring station 91 as shown in FIG. When the molten metal is poured into the hot water container (ladle) 19, the casting process is started.

[0025]

According to the present invention, with respect to a casting apparatus having a plurality of casting units on a turntable, each of the above-mentioned casting units is separated from a plurality of dies of an upper mold, a lower mold, and a horizontal mold. And a lock device for holding these molds in a detachable manner is provided, and a preheating furnace for preheating each mold is provided. By operating the lock device, the mold can be easily replaced, and the efficiency of the mold replacement operation can be improved. Further, since the locking device is formed by the power cylinder and the link mechanism driven by the power cylinder, the work of attaching and detaching the mold can be performed by remote control or the like. The exchanging operation of the mold preheated to a high temperature can be performed safely and quickly.

Further, since the preheating furnace is configured to heat (heat) the set of dies in the atmosphere in the preheating furnace, a new die whose mold has been replaced is used. Has a uniform temperature distribution, and the casting operation using such a mold can be started immediately. Therefore, the test hitting conventionally performed,
Alternatively, operations such as dumping have been omitted, and it has become possible to reduce the operation loss associated with mold replacement.

[Brief description of the drawings]

FIG. 1 is a skeleton diagram showing the overall configuration of the present invention.

FIG. 2 is a skeleton diagram showing an overall configuration of a casting unit and a lock device according to the present invention.

FIG. 3 is a plan view showing the overall configuration of a casting unit and a lock device according to the present invention.

FIG. 4 is a skeleton diagram showing an overall configuration of a casting unit, a lock device, and a transfer device according to the present invention.

FIG. 5 is a plan view showing an arrangement state of a casting unit according to the present invention on a turntable.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casting unit 11 Upper die 111 Die bracket 12 Lower die 121 Die base 13 Horizontal die 131 Power cylinder 133 Horizontal presser 15 Die assembly 19 Pouring container (ladle) 2 Lock device 21 Lever 22 Rod 23 Link 25 Power cylinder 29 Stay Reference Signs List 3 lock device 3 'lock device 31 lever (hook) 32 rod 33 link 35 power cylinder 39 stay 5 transport device 51 frame 52 slider 53 power cylinder 54 slide rail 55 carrier 59 catch 59' catch 6 transport device 7 preheating furnace 71 housing 75 Pallet 9 Turntable 91 Pouring station 95 Removal station

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B22D 47/00

Claims (2)

(57) [Claims] 1. A casting apparatus having a plurality of casting units on a turntable, wherein each of the casting units is
A state in which the lock device is constituted by a plurality of upper, lower, and horizontal dies, and a lock device for detachably holding each of the dies is provided, and the lock device is opened.
In the above, the die assembly comprising
From the casting unit using the space above the
Take it out and place it on the casting unit at a predetermined temperature.
Set up a transfer device to transfer the heated die assembly.
Only further preheated to a predetermined temperature above the mold to be placed on the predetermined casting unit in the state of the die assembly
A casting apparatus characterized in that a preheating furnace is provided. 2. The casting apparatus according to claim 1, wherein said preheating furnace is provided with said plurality of casting units.
And separate from the preheating furnace
Are placed in the atmosphere of the preheating furnace.
Ensure that the assembly is heated uniformly to the specified temperature
Casting apparatus being characterized in that the.