JP2933254B2 - Low pressure 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 method for exchanging a mold, setting a core, and taking out a product in a low-pressure casting machine in which a molten metal in a holding furnace is pressurized and filled into a mold. Regarding suitable facilities.

[0002]

2. Description of the Related Art Conventionally, there is no suitable facility for exchanging a mold, setting a core, and taking out a product from a low-pressure casting machine. Therefore, there has been a strong demand from the industry for the appearance of equipment for this purpose. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a low-pressure casting machine with suitable facilities for exchanging a mold, setting a core, and taking out a product.

[0003]

In order to achieve the above-mentioned object, a low-pressure casting apparatus according to the present invention comprises a mold-moving apparatus including a mold-core clamping mechanism for moving up and down and horizontally moving a mold and a core. A first transfer device is disposed adjacent to the low-pressure casting machine provided and below the mold moving device, and a first transfer device is connected to the first transfer device, and a mold transfer station is connected to the first transfer device. A second transporting device that transports a pallet, a third transporting device that transports a core preset pallet that connects a core set station and sets a core, and a pallet elevating device that lifts and lowers a product mounting pallet. The four transport devices are provided radially around the first transport device.

[0004]

In the equipment configured as described above, the mold is mounted by placing the mold to be mounted at the mold changing station on the second transfer device via the mold mounting pallet and then using the second transfer device. Carry in the first transport device,
Subsequently, the mold / core clamp mechanism of the mold moving device is lowered to clamp the mold. Next, after the mold is raised by the mold / core clamp mechanism, the mold moving device is moved to a position immediately above the lower die plate of the low-pressure casting machine, and then the mold is moved to the mold / middle. The lower die is placed on the lower die plate with the child clamp mechanism, and the lower die is fixed to the lower die plate, and only the upper die is clamped to the die / core clamp mechanism. Thereby, the mold can be attached to the low-pressure casting machine. And the removal of the mold
The above operation can be performed in reverse.

The core is set in the upper die at a core setting station, and the core is set on a core preset pallet. Subsequently, the core preset pallet is moved to the first preset pallet by the third transfer device. Carry in the transfer device. On the other hand, the mold moving device is operated to move the upper mold to the azimuth value directly above the first transfer device, and then the mold / core clamp mechanism is lowered to clamp the core of the core preset pallet. Set in the upper mold. Further, when the product is taken out, the product placing pallet on the product placing pallet circulating device is moved to the first place by the pallet elevating device and the fourth transport device.
While being sent to the transfer device, the mold moving device having the product adhered to the upper mold is moved to a position immediately above the first transfer device, and then the product mounting pallet is raised by the first transfer device. Next, the product is dropped on this pallet, and then the product mounting pallet on which the product is placed is lowered.
Next, the product mounting pallet on which the product is mounted is sent to the pallet elevating device by the fourth transport device, and then sent to the pallet circulation device to take out the product.

[0006]

An embodiment of the present invention will be described in detail with reference to the drawings. 1 and FIG. 1A, which are partial cross-sectional front views.
As shown in FIG. 2, which is a view taken from the direction of arrow A, the low-pressure casting equipment includes a low-pressure casting machine 10, a first transport device 20, a second transport device 30, a third transport device 40, and a fourth transport device. And the second, third and fourth transfer devices 30 to
As shown in FIG. 2, the reference numerals 50 are arranged radially (in a T-shape in the horizontal direction) around the first transfer device 20. And, as shown in FIG. 1, in the low-pressure casting machine 10,
At the upper position, a mold moving device 11 for moving the mold and the core up and down and horizontally moves is mounted. In the mold moving device 11, a downwardly moving cylinder 13 is provided on a carriage 12 which is provided to be horizontally movable, and a lower end of a piston rod of the cylinder 13 is a mold capable of clamping an upper mold and a core. A lifting / lowering frame 15 provided with a core clamp mechanism 14 is mounted, and a mold / core clamp mechanism 14 is provided.
Is moved up and down by the expansion and contraction operation of the cylinder 13. Further, a driving mechanism 16 is provided on the upper surface of the carriage 12, and the mold moving device 11
The reversing drive reciprocates between the lower mold die plate 10 a of the low-pressure casting machine 10 and the position immediately above the first transfer device 20.

Further, as shown in FIG. 3, which is a view taken in the direction of arrows BB in FIG. 2, in the first transporting device 20, a plurality of first rollers 22, 22 for transporting a product mounting pallet 21 are pivoted. The supported first roller frame 23 is provided so as to be able to move up and down via an upward cylinder 24 installed on the base frame F, and the first rollers 22 and 22 are connected to the first roller frame 23.
The product mounting pallet 21 can be transported in the front-rear direction in FIG. 3 through a motor 25 equipped with a speed reducer and a transmission mechanism including a chain wheel 26 and an endless roller chain 27. It is like that. Further, on both front and rear outer sides of the first roller frame 23, a first hollow roller frame 29 which supports a plurality of first hollow rollers 28, 28 is disposed.
Is configured to be rotatable forward and reverse through a motor 71 with a speed reducer mounted on the first hollow roller frame 29 (see FIG. 2) and a transmission mechanism including a chain wheel and an endless roller chain (not shown). The pallet 31 for transferring a mold and the core preset pallet 41 described later are moved to the first rollers 22 and 2.
2 can be transported in a direction perpendicular to the direction. The transport level of the first hollow rollers 28, 28 is
The height is set higher than that of the first rollers 22, 22 when descending.

In the second transfer device 30,
As shown in FIG. 3, a second roller frame 33 supporting a plurality of second rollers 32, 32 for transporting the mold transport pallet 31 is disposed adjacent to the right side of the first hollow roller frame 29. The transport level and the transport direction of the second rollers 32, 32 are the same as those of the first hollow roller 28. And the second rollers 32, 32
Motor 3 with reduction gear mounted on second roller frame 33
4 and a transmission mechanism consisting of a chain wheel (not shown) and an endless roller chain 35, so that it can be rotated forward and backward.

Further, in the third transfer device 40,
As shown in FIG. 3, a third roller frame 43 that supports a plurality of third rollers 42, 42 that conveys a core preset pallet 41 on which a core can be set is provided on the left side of the first hollow roller frame 29. Is located adjacent to the third
The rollers 42, 42 control the transport direction and transport level of the core preset pallet 41 by the first hollow rollers 28, 2.
8 are identical to those of FIG. And the third roller 4
The reference numerals 2 and 42 are rotatable forward and reverse through a transmission mechanism including a motor 44 with a speed reducer mounted on a third roller frame 43, a chain wheel (not shown) and an endless roller chain 45.

Further, in the fourth transporting device 50, as shown in FIG. 2, a fourth roller frame 53 supporting a plurality of fourth rollers 52, 52 for transporting a product transfer pallet 51 is provided in the middle portion. The fourth roller 52 is disposed adjacent to the right side of the first roller frame 29.
As shown in FIG. 1, the transfer level of the product transfer pallet 51 is higher than that of the first hollow roller frame 29, and the transfer direction is the same as that of the first rollers 22 and 22. The fourth rollers 52, 52 are rotatable forward and backward through a motor 63 with a speed reducer mounted on a fourth roller frame 53 and a transmission mechanism including a chain wheel and an endless roller chain (not shown).

As shown in FIG. 1, a pallet elevating device 54 for elevating and lowering the product transfer pallet 51 is disposed on the right side of the fourth roller frame 53. In the pallet elevating device 54, a portal frame is provided. A downwardly-facing electric cylinder 56 is mounted on the ceiling of 55, and a vertically movable frame 57 is mounted on the lower end of the piston rod of the electric cylinder 56. And the lifting frame 5
7, balance weights 60, 60 are attached to pulleys 58, 58 supported on the portal frame 55 via ropes 59, 59 on the left and right sides, thereby reducing the load on the electric cylinder 56. I can do it. The lifting frame 57 has a plurality of rotating fifth rollers 6.
A roller base 62 supporting the first and the first 61 is mounted, and the conveying direction of the fifth rollers 61, 61 of the roller base 62 is the same as that of the fourth rollers 52, 52.

In the equipment configured in this manner, the mold is mounted by clamping the upper and lower molds to be mounted to each other in advance at a mold changing station formed at the other end of the second transfer device 30. After the mold P is placed on the second transfer device 30 via the mold-loading pallet 31, the motors 34 and 71 with a speed reducer of the second transfer device 30 are driven to rotate forward and the second roller 32, 1 hollow roller 28,
28, the mold moving device 11 is transported to the first transfer device 20 and then stands by at a position immediately above the first transfer device 20.
The cylinder 13 is extended to lower the mold / core clamp mechanism 14 via the elevating frame 15, and the mold P is clamped by the mold / core clamp mechanism 14. Next, the cylinder 13 is contracted to raise the mold P via the mold / core clamp mechanism 14.
6 is driven forward to move the mold moving device 11 to a position immediately above the lower die plate 10a of the low-pressure casting machine 10.
Next, the cylinder 13 is extended and the mold P is lowered via the mold / core clamp mechanism 14 and placed on the lower die plate 10a.
a, and only the upper mold is fixed to the mold / core clamp mechanism 14.
Clamp with Thereby, the mold P can be attached to the low-pressure casting machine 10. Then, to remove the mold P, the above operation may be performed in reverse.

The core is set in the upper mold at the core set station formed at the other end of the third transfer device 40 by setting the core on the core preset pallet 41,
Subsequently, the motor 44 with a speed reducer of the third transfer device 40 is used.
Is driven forward and the motor 71 with a speed reducer of the first conveying device 20 is driven to rotate in reverse to move the core preset pallet 41 with the third rollers 42, 42 and the first hollow rollers 28, 28 to the first conveying device 20. Carry in. On the other hand, the driving device 16 is driven in reverse to move the upper mold to the azimuth value directly above the first transfer device 20 via the mold moving device 11, and then the cylinder 13 is extended to operate via the elevating frame 15. To lower the mold / core clamp mechanism 14,
Thereafter, the mold / core clamp mechanism 14 is operated to clamp the core of the core preset pallet 41. Thereby, the core can be set in the upper mold.

Further, when the product is taken out, the electric cylinder 56 of the pallet elevating device 54 is contracted to operate the roller 6.
The transfer levels of the pallets 51 and 61 are raised to the carry-out level of a circulating device for pallets 51 (not shown).
The rollers 61, 61 are driven to rotate forward, and the fifth rollers 61, 61 are driven.
The product mounting pallet 51 from the not-shown product mounting pallet 51 circulation device is fed into the upper portion. Next, the cylinder 24 of the first transfer device 20 is extended to operate the first roller 2.
After the transport levels of the second and second rollers 22 and 22 are the same as those of the fourth rollers 52 and 52, the motors 63 and 25 with speed reducers are driven to rotate forward to drive the fifth rollers 61 and 61 and the fourth rollers 52 and 52.
And the first rollers 22 and 22 are rotated to move the product mounting pallet 51 from the pallet lifting device 54 to the first transfer device 2.
0 on the first rollers 22, 22.

On the other hand, the mold moving device 11 having the product adhered to the upper mold by driving the drive mechanism 16 in the reverse direction is moved to the first transfer device 20.
Then, the cylinder 24 of the first transfer device 20 is extended and the product mounting pallet 51 is raised by the first rollers 22, 22. Then, an extruder (not shown) is operated to extrude the product adhering to the upper mold (not shown) onto the product mounting pallet 51,
Subsequently, the cylinder 24 is contracted and the first rollers 22, 22 on which the product mounting pallet 51 is mounted are moved to the fourth rollers 52.
Lower to the height of. Next, the motor 2
5, 63, etc. are driven in the reverse direction to drive the first rollers 22, 22,
The rollers 52, 52 and the fifth rollers 61, 61 are rotated to transfer the product mounting pallet 51 on which the product is mounted from the first rollers 22, 22 to the fifth rollers 61, 61. 56 is further extended to lower the product mounting pallet 51 on which the product is mounted via the elevating frame 57. Next, the product mounting pallet 51 on which the product is mounted is sent out to a not-shown product mounting pallet 51 circulating device, and the product is taken out from the product mounting pallet 51.

[0016]

As is apparent from the above description, the present invention is adjacent to a low-pressure casting machine including a die / core crumb mechanism and a die moving device for vertically moving and horizontally moving the die and the core. And a first transfer device is provided below the mold moving device, and the first transfer device is connected to a mold transfer station and a second transfer device for transferring a mold mounting pallet. An apparatus, a third conveying apparatus for conveying a core preset pallet for connecting a core set station and setting a core, and a fourth conveying apparatus for connecting a pallet elevating apparatus for elevating and lowering a product mounting pallet, Since one transfer device is arranged radially around the center, the mold can be changed, the core set and the product can be automatically and easily and reliably removed from the low-pressure casting machine. Outstanding effect That.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of the present invention.

FIG. 2 is a view taken along the line AA in FIG. 1;

FIG. 3 is a view taken in the direction of arrows BB in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Low-pressure casting machine 10a Die plate for lower dies 11 Die moving device 12 Dolly 13 Cylinder 14 Die / core clamp mechanism 15 Elevating frame 16 Drive mechanism 20 First transfer device 30 Second transfer device 40 Third transfer device 50 4th transfer device

Claims (1)

(57) [Claims] 1. A mold moving device 11 including a mold / core clamp mechanism 14 for vertically moving and moving a mold and a core horizontally.
, A first transfer device 20 disposed adjacent to the low-pressure caster 10 and below the mold moving device 11, and the first transfer device 20. A second transfer device 30 that is radially installed to connect the first transfer device 20 and the mold transfer station and transfers the mold mounting pallet 31; and a second transfer device 30 that is installed radially around the first transfer device 20. A third transfer device 40 for connecting the first transfer device 20 to the core set station and transferring a core preset pallet 41 on which a core can be set;
A fourth transport device 50 that is radially installed around the transport device 20 and connects the first transport device 20 and a pallet lifting device 54 that raises and lowers the product loading pallet, and transports the product loading pallet 51; Low-pressure casting equipment characterized by comprising: