JPS5844897Y2 - casting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a casting apparatus that is generally used to mass-produce castings of complex shapes using a mold.

As shown in Fig. 1, this type of casting equipment that has been used conventionally has a fixed frame 2 and a movable frame 3 on both sides of a base 1, and the fixed frame 2 has a vertically divided into two parts. One of the molds 4 and 5 is mounted on a movable frame 3, and the other mold 5 is mounted on a movable frame 3, and the movable frame 3 has a guide laid horizontally on a base 1. It is fixedly installed on a movable base 8 which is fitted onto the rail 6 and is interlocked and connected to a hydraulic cylinder 7 installed in the base 1, and the movable frame 3 is moved to the guide rail 6 by the operation of the cylinder 7. By reciprocating along the movable mold 5, the mold 5 on the movable side can be moved toward and away from the mold 4 on the fixed side.

However, in this conventional device, the molds 4 and 5 are fixed to the fixed frame 2 and the movable frame 3, respectively, and are always held vertically, that is, the molds 4 and 5.
Since the respective casting cavities face each other inside the device, the working space may be limited because the casting cavities may not be visible from the outside even when the molds are separated. As a result, it is very difficult to install and remove the core used when casting hollow castings, etc., or to remove the molded casting, or to clean the molding recess after casting. This was a factor that reduced casting work efficiency.

The present invention has been made with the aim of solving the above-mentioned problems in the conventional apparatus, and one embodiment of the present invention will be described below with reference to the drawings.

2 to 4 show the casting apparatus according to the present invention, and in these figures, 9 is a pedestal, 10 is a base support frame erected on both sides of the pedestal 9, and 11 is each support frame. 10 is a bearing provided at the upper end, 12 is a support arm rotatably supported by each bearing 11, and 13 is a base, and the support arm 12 is connected to the support arm 12 via connecting pieces 14 and 14 provided at both ends of the base. , 12, and can be tilted and rotated using the support arms 12 and 12 as a fulcrum.

Reference numeral 15 denotes an operating cylinder interposed between the base 13 and the pedestal 9, which holds and fixes the base 13 in a fixed position, or controls the tilting of the base 13 as required.

A fixed mold mounting bracket 18 is pivotally attached to a fixed frame 16 provided on one side (the left side in the figure) of the base 13 via a horizontal support shaft 17, and the bracket 18 and the fixed frame 16 are An operating cylinder (for example, a hydraulic cylinder) 19 is interposed between them, and a movable base 21 is slidable on a guide rail 20 fixed to the base 13 on the other side (right side in the figure) of the base 13. A movable frame 22 is installed on this base 21, and a movable mold mounting bracket 24 is pivotally attached to this movable frame 22 via a horizontal support shaft 23 similarly to the fixed frame 16. An operating cylinder (
A hydraulic cylinder) 25 is interposed, and the fixed mold mounting bracket 18 has vertically divided vertically divided molds 26 and 27.
One of the stationary molds 26 and the other movable mold 2γ are removably fixed to the movable mold mounting bracket 24 by bolts 28 and nuts 29, respectively. The fixed mold 26 and the movable mold 27 can be tilted upward relative to the fixed frame 16 and the movable frame 24 about horizontal support shafts 17 and 23, respectively (see FIG. 4).

The movable frame 22 has a piston rod 3 of an operating cylinder (hydraulic cylinder) 30 installed on the base 13.
0a end is fixed, and by supplying and discharging oil to the cylinder 30, the movable base 21 at the lower part of the movable frame 22 is reciprocated along the guide rail 20 via the piston rod 30a, and the movable mold 2γ is moved relative to the fixed mold 26. I try to keep them apart.

The operating cylinder 19 on the fixed frame 16 side is arranged below the horizontal support shaft 17, and its cylinder case 19
The b end is pivoted to the mounting piece 31 at the lower end of the fixed frame 16, the cylinder rod 19a end is pivoted to the bracket body 18a of the fixed mold mounting bracket 18, and the pivot arm 18b of the bracket 18 is fixed. It is fixed to a horizontal support shaft 11 that is rotatably supported by the frame 16, and an operating cylinder 25 on the movable frame 22 side is arranged on the side of the movable frame 22, and the end of the cylinder case 25b is The cylinder rod 25a is pivotally attached to the mounting piece 32 at the lower end of the movable frame 22, and the end of the cylinder rod 25a is pivoted to the bracket body 24a of the movable mold mounting bracket 24, and the pivot arm 24b of the bracket 24 is attached to the movable room 22. It is fixed to a horizontal support shaft 23 that is rotatably supported.

Therefore, when pressurized oil is supplied to the working cylinder 19.25, the cylinder rod 19a25a as shown in FIG.
Due to the elongation of the brackets 18, 24 and the molds 26, 2γ
26.27.
The casting cavities 26a and 2γa are opened upward.

In FIGS. 2 to 4, 33, 33 are the molds 26.2
The split file 34 provided at the pouring port 7 is a hot water supply ladle that is integrally disposed at the upper end of the split file 33 on the side of the fixed mold 26.

Reference numeral 35 denotes a knockout pin mounting plate disposed in a gap 36 between the movable mold 27 and the movable mold mounting bracket 24, and this plate 35 is attached to the tip of the cylinder rod 3γa of the operating cylinder 31 installed in the bracket 24. A plurality of knockout pins 38 are protruded from the front surface of the plate 35, and each knockout pin 38 is inserted into a knockout pin insertion hole (not shown) provided through the movable mold 2γ. The tip of the pin 38 is normally attached to the mold 27.
The cylinder 3γ is actuated when the casting is taken out, and each knockout pin 38 is plunged into the casting cavity 27a via the mounting plate 35 to remove the casting. The casting inside the cavity 27a is pushed out.

Another characteristic structure of the present invention is that the fixed frame 1
6 and the lower part of the movable frame 22, each mold 26 is screwed into the mold vertical position adjustment bolt 39.39, and the tip of the bolt 39 is brought into contact with the mold mounting bracket) 18.24. , 27 were made to polymerize accurately in the vertical interlayer.

Conventionally, if both molds 4 and 5 shown in Fig. 1 are fixed in a vertical position, it is difficult to attach, remove, or clean the core, so only one of the molds 4 is mounted on a horizontal support shaft. A device that can freely tilt using the fulcrum has been proposed.

In this case, it would be more convenient if both molds 4.5 were formed to be tiltable, but in the past, only one mold 4 was formed to be tiltable as described above, and the other mold 5 was formed to be tiltable. It was fixed in place vertically.

This maintains the tilting mold 4 in an accurate vertical position during pouring,
This is because, in order to closely overlap with the corresponding mold 5, if the mold 5 was not fixed in a vertical position, the tilting mold 4 could not be rotated to match the vertical position.

On the other hand, according to the present invention, the mold vertical position adjustment bolts (stoppers) 39 are provided protrudingly from both frames 16 and 22, instead of simply from the 7L/- section on one side, so that each mold 26, 27 can be polymerized with each other while maintaining them in precisely vertical positions.

As explained above, the casting apparatus of the present invention mounts the fixed mold and the movable mold to the mold mounting brackets that are pivotally connected to the fixed frame and the movable frame via horizontal support shafts, respectively, and An operating cylinder is interposed between the fixed frame side and the movable frame side, respectively, so that the fixed mold and the movable mold can be tilted upward with respect to the fixed frame and the movable frame, respectively, about the horizontal support shaft as a fulcrum. Therefore, before the start of casting or after the end of casting, the operating cylinder is operated to tilt the fixed mold and the movable mold upward, and the casting cavities of these molds are opened upward. As a result, the casting cavity becomes clear and at the same time the working space becomes wider, making it possible to install the core accurately and quickly, and also to remove the core or castings or to work inside the casting cavity of the mold. Cleaning becomes much easier, and casting efficiency can therefore be greatly improved.

Furthermore, according to the present invention, mold vertical position adjustment stoppers are provided protruding from both the fixed and movable frames so that both the fixed and movable molds overlap each other in vertical positions, so that each mold It is possible to overlap each other while accurately returning to the vertical position, and there is no fear of leakage.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a conventional casting device, Fig. 2 is a front view showing an embodiment of the casting device of the present invention, Fig. 3 is a plan view of the same, and Fig. 4 is a tilting of the mold in the same. It is a side explanatory view showing operation. 13... Base, 16... Fixed frame, 11...
Horizontal support shaft, 18... Fixed mold mounting bracket, 19
...Operating cylinder, 22...Movable frame, 23.
・・Horizontal support shaft, 24 ・・Bracket for mounting movable mold,
25... Operating cylinder, 26... Fixed mold, 2T.
...Movable mold, 39... Stopper for vertical position adjustment of the mold.

Claims (1)

[Scope of utility model registration request] A fixed frame is provided on one side of the base, and a movable frame is provided on the other side, and the fixed frame is equipped with one of the split molds, the movable frame is equipped with the other of the split molds, and the movable frame is equipped with one of the split molds. In a casting device in which a frame is reciprocated on a base to allow a movable mold to move toward and away from a fixed mold, the fixed mold and the movable mold are attached to the fixed frame and the movable frame, respectively. They are attached to mold mounting brackets that are pivotally connected via horizontal support shafts, and actuating cylinders are interposed between these brackets and the fixed frame side and the movable frame side, respectively. The side molds can be tilted upward with respect to the fixed frame and the movable frame, respectively, using the horizontal support shafts as fulcrums, and the stoppers for vertical position adjustment of the molds are installed as described above so that both molds overlap each other in a vertical position. A casting device characterized by protruding from both frames.