JPH0592252A - Casting apparatus - Google Patents

Abstract

PURPOSE:To enable a vertical type, horizontal type and tilting type casting by loading a casting part on a pivotally and freely turnably supported base, by turning the casting part by a turning means whose one end is pivotally and freely turnably supported on the casting part, and the other end is pivotally and freely turnably supported on the base. CONSTITUTION:The casting part (a) is loaded on a frame 16 and the frame 16 is pivotally and freely turnably supported on a fitting piece 18 arranged to the base 17. A hydraulic cylinder 22 is pivotally and freely rotably supported on the frame 16 at this one end, and the other end is pivotally and freely rotably supported on the frame base 17. By working the hydraulic cylinder 22, the casting part (a) becomes horizontal, inclining or vertical condition through the frame 16. Therefore, the casting part (a) can be used as the vertical type casting apparatus, horizontal type casting apparatus or tilting casting apparatus.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a casting machine, and more particularly to a casting machine.
The present invention relates to a versatile casting device that can be used as a vertical casting device, a horizontal casting device, or a tilting casting device, and has a reduced size.

[0002]

2. Description of the Related Art Conventionally, a vertical casting apparatus for vertically dividing a casting mold or a horizontal casting apparatus for horizontally dividing a casting mold has been adopted depending on the shape and size of a casting to be cast. Alternatively, a tilt casting apparatus has been adopted which has a pool on the outside of the spout and pours the molten metal in the pool by inclining the entire mold.

[0003]

However, since the above-mentioned conventional casting apparatus is a dedicated casting apparatus for a vertical casting apparatus, a horizontal casting apparatus or a tilt casting apparatus, it is necessary to deal with all kinds of castings. It was necessary to have many kinds of dedicated casting equipment. Therefore, there is a drawback that the equipment cost increases, and there is a possibility that the equipment may be idle.

For example, when a casting to be cast is produced by a tilting casting apparatus, there is a problem that the horizontal casting apparatus and the vertical casting apparatus become idle and the operating rate is lowered.

Further, in the tiltable casting apparatus, if the apparatus is upsized, the weight is increased and the tilting drive mechanism needs to be upsized, resulting in a high cost.

The present invention has been made to solve the above-mentioned problems, and a vertical casting apparatus is also provided.
Further, it is an object of the present invention to provide a downsized casting apparatus which can be used as a horizontal casting apparatus and also as a tiltable casting apparatus.

[0007]

In order to achieve the above-mentioned object, a casting apparatus according to the present invention is movable between a first platen and a second platen connected by a spacing member, guided by the spacing member. A first mold and a second mold for forming a mold by combining the movable platen and the second platen on opposite sides of the movable platen, respectively, and the combined first mold and second mold. A casting part provided with a third die united to the side surface of the die, and the movable platen or the second platen for moving the third die with the first die or the second die in the middle. And a third plate moving unit including a pair of moving mechanisms, a movable platen driving unit for moving the movable platen provided on the first platen, and a pedestal that pivotally supports the casting unit. One side is above Is rotatably supported on the concrete part, the other end is characterized by having a casting portion rotating means for rotating the casting portion is rotatably supported on the frame.

[0008]

In the above structure, the casting part is pivotally supported by the casting part pivoting means to pivot. Therefore, when the casting part is rotated and positioned in the upright state, the casting part can be used as a vertical casting device, and when the casting part is rotated and positioned in the horizontal state, The casting part can be used as a horizontal casting device. On the other hand, the first mold, the second mold, and the third mold set in the casting unit are combined with each other and rotated together with the rotation of the casting unit, so that the casting unit can be used as a tilting casting apparatus. Becomes

The combination of the first mold and the second mold is carried out by moving the movable platen, and the combination of the third mold into the combined mold of the first mold and the second mold comprises a pair of moving mechanisms. It is performed by type 3 moving means.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of the casting apparatus A, showing a state in which the casting portion a is horizontally rotated, and FIG.
1 is a right side view of FIG. 1 and shows an enlargement of a state in which the casting part a is rotated in an upright state.

The casting part a has a first planar shape of substantially square.
It includes three platens including a platen (hereinafter referred to as an upper platen) 1, a second platen (hereinafter referred to as a lower platen) 2 and a movable platen 3, of which the upper and lower platens 1 and 2 are included.
As shown in FIGS. 3 and 4, the three corners are connected by tie rods (spacing holding members) 4 at predetermined intervals. The movable platen 3 is provided between the upper and lower platens 1 and 2, and is guided by three tie rods 4 and a sliding cylinder 5 provided at a corner of the upper platen where the tie rods 4 are not provided. It is movably installed.
Therefore, the guide rod 6 is provided at the corner of the movable platen 3 corresponding to the sliding cylinder 5.

The movable platen 3 is constructed so as to be moved by a hydraulic cylinder (movable platen driving means) 7 provided on the upper platen 1. That is, the hydraulic cylinder 7 is fixed to the upper surface of the upper platen 1, and the piston rod 7a of the hydraulic cylinder 7 is fixed to the upper surface of the movable platen 3 through the hole 2a provided in the upper platen 1. .. Therefore, the piston rod 7
When a moves up and down, the movable platen 3 can move up and down accordingly (see arrow B).

Between the movable platen 3 and the lower platen 2,
A first mold (hereinafter, referred to as an upper mold) X and a second mold (hereinafter, referred to as a mold) which are combined to form one mold and obtain a casting having a desired shape.
A lower mold Y and a third mold (hereinafter referred to as side molds) Z are provided, but the upper mold X and the lower mold Y are fixed to the surfaces of the movable platen 3 and the lower platen 2 that face each other. The mold Y is fixed via a base 8 placed on the lower platen 2. Further, the side die Z is provided via a third die moving means of a moving mechanism which is mounted on the base 8 and which includes a pair of hydraulic cylinders described later.

The base 8 is fixed to the lower platen 2 by a clamp mechanism 10 whose four corners are operated by hydraulic cylinders 9 provided on the lower platen 2, and the clamp mechanism 1
When 0 is released, the base 8 can be moved.

The lower platen 2 and the movable platen 3 are respectively provided with extruding means 11 and 12 for extruding a casting (product) from the mold when the upper die X and the lower die Y are released from each other. Of these, the extrusion means 11 is used when attaching the casting to the upper die X, and the extrusion means 12 is used when attaching the casting to the lower die Y.

The ejection push-out pin used when the casting is taken out from the upper die X or the lower die Y is separately provided. That is, the ejection push-out pin 11a when the casting is taken out from the upper mold X penetrates the movable platen 3 and is connected to the upper platen 1.
The casting is discharged by utilizing the protrusion of the discharge push-out pin 11a, which is obtained by moving the movable platen 3 to the upper platen 1 side (see FIG. 2).
In order to avoid complication of the drawing, the ejection push-out pin 11a is omitted. ). The ejection push-out pin 12a used when the casting is taken out from the lower die Y is provided on a work table b described later. This will be described later.

The pushing mechanism of the pushing means 11 and 12 is carried out by using a pushing pin which is operated by a hydraulic cylinder like the known pushing mechanism. However, the push-out means 12 on the movable platen 3 side connects the pair of hydraulic cylinders 13a, 13b provided on the upper surface of the movable platen 3 and the piston rods 13a ', 13b' of these hydraulic cylinders 13a, 13b to each other. 7, a connecting plate 14 having an opening through which the piston rod 7a penetrates, and an extruding pin 15 fixed to the connecting plate 14. Therefore,
The pushing means 12 on the movable platen 3 side can be downsized, and as a result, the space between the upper and lower platens 1 and 2 can be reduced to make the casting portion a small and lightweight.

One side of the casting portion a (lower side in FIG. 1, FIG. 2)
On the back side), a frame 16 is provided, and the lower platen 2 side of the frame 16 is rotatably supported by a pair of mounting pieces 18, 18 provided on a frame 17.

A stopper 19 for horizontally positioning the rotating cast part a is provided on the left end side of the gantry 17, and the upright state of the cast part a is positioned on the right end side thereof. A stopper 20 is provided. Further, on the right end side thereof, there is provided a projecting pin 21 which is operated by a pneumatic cylinder for fixing the cast portion a positioned in the upright state. Therefore, the lower platen 2 is provided with a hole 21a into which the projecting pin 21 is inserted, and when the casting part a stands upright, the projecting pin 21 is inserted into the hole 21a so that the casting part a is upright. It is held and fixed.

Near the central position of the frame 16, that is,
At a position above the shaft support position of the frame 16 on the platen 1 side, a tip end portion of a piston rod 22a of a hydraulic cylinder (casting portion rotating means) 22 rotatably provided on a gantry 17 is rotatably provided. ing. The main body of the hydraulic cylinder 22 is rotatably supported by the gantry 17.
Therefore, when the hydraulic cylinder 22 is driven and the piston rod 22a thereof is extended, the casting portion a is rotated around the shaft support position as shown by the arrow B in FIG.

By such rotation, the casting part a is held in the upright state, and when the movable platen 3 is operated and casting is performed only in this upright state, the casting part a is a vertical casting device. Can function.

Further, when the casting part a is held in the horizontal state and the movable platen 3 is operated only in the horizontal state to perform casting, the casting part a can function as a horizontal casting device.

Further, the assembling of the mold is carried out with the casting part a standing upright, and the molten metal is poured into the pool of the mold,
After that, when the casting part a is rotated and cast, the casting part a can function as a tilting casting device.

FIG. 5 is a sectional view taken along line CC of FIG.
The right half shows a state in which the side mold Z is bonded (combined) to a mold in which the upper mold X and the lower mold Y are combined, and the left half shows a state in which the mold is separated from the mold, and the movement of the side mold Z is shown. The means (third type moving means) 30 has the same structure as the pushing means 12.

That is, the moving mechanism of the side die Z is a pair of hydraulic cylinders 31a, 31b arranged on the left and right sides of the lower die Y and fixed on the base 8, and these hydraulic cylinders 3
1a and 31b, and a fixed connecting plate 33 of the side mold Z, which is connected to the piston rods 32a and 32b. Therefore, the pair of hydraulic cylinders 31a, 3a
1b can move the side mold Z in synchronization with the connecting plate 33. Moreover, the pair of hydraulic cylinders 31
Since a and 31b do not project from the base 8,
Compared with moving the side die Z by a conventional single hydraulic cylinder 34 as shown by the chain line in FIG.
(In the example of FIG. 5, the vertical tie bar) can be greatly reduced in interval. That is, in the case of the conventional single hydraulic cylinder 34, the upper tie bars 4, 4 become the tie bars 4 ', 4'shown by the chain line, and when the tie bars 4, 4, ... Lower platen 2,
The movable platen 3 also becomes large, and the hydraulic cylinder that drives the movable platen 3 also becomes large.

The side mold Z may be provided on the movable platen 3 without being provided on the base 8, that is, the lower platen 2.

Thus, when the casting part a is used as a tilting casting device, the pushing means 12 on the movable platen 3 side is used.
In addition to downsizing, the moving mechanism of the side die Z is located on the base 8 to reduce the interval between the tie bars 4, 4, ... The advantage is that the hydraulic cylinder 22 can be downsized.

In the casting apparatus A according to this embodiment, the lower platen 2 is provided near the lower platen 2 in a state where the casting part a is upright.
The work tables b having substantially the same surface as the above are arranged in parallel, and FIG. 6 shows the positional relationship on the plane between the lower platen 2 and the work table b.

The lower platen 2 and the upper surface member 40 of the work table b are provided with a plurality of rollers 41, 41 ... Supporting the base 8 from below and assisting the movement in the left-right direction. There are provided a plurality of rollers 42, 42 ... Which come into contact with the side surfaces and regulate the movement of the base 8 in the front-rear direction. Therefore, the base 8 can be moved from the lower platen 2 to the work table b when the clamp mechanism 10 is released, and conversely, the base 8 on the work table b can be moved to the lower platen 2. Become.

The base 8 is moved by a hydraulic cylinder (moving means) 43 provided on the lower surface of the lower platen 2. That is, the expansion / contraction direction of the piston rod 43a of the hydraulic cylinder 43 (see arrow C in FIG. 7) is directed toward the work table b side, and the piston rod 4a
A pin 45 that is vertically moved by a hydraulic cylinder 44 is provided at the tip of 3a (see arrow D in FIG. 7).

Therefore, the pin 45 is inserted into the hole 8a provided in the lower surface of the base 8 and the hydraulic cylinder 4
3 is driven to extend the piston rod 43a, the base 8 can be moved from the lower platen 2 to the work table b, and when the extended piston rod 43a is shortened, the base 8 is moved from the work table b. Lower platen 2
Can be moved to.

In FIG. 6, reference numeral 43b is a fixed pin driven by a pneumatic cylinder which is positioned when the base 8 is located on the work table b.

As shown in FIG. 8, the upper surface member 40 of the work table b is constructed so that it can be moved above the same position as the lower platen 2 by a hydraulic cylinder (raising means) 46. That is, the upper surface member 4
0 is configured such that a frame 47 supporting the upper surface member 40 is vertically moved by a hydraulic cylinder 46 provided on a mount 48 of the work table b.

Therefore, when a worker sets a core on the lower die Y on the work table b, or takes out a casting from the lower die Y, the work does not become a middle work. Good workability.

Further, the work table b is provided with ejection push-out pins 12a for taking out a casting from the lower mold Y. That is, the ejection push-out pin 12 is attached to the frame 47a.
A hydraulic cylinder 49 for actuating a is provided, and the ejection push-out pin 12a reaches the lower mold Y through a through hole 40a provided in the upper surface member 40 and a through hole 50 provided in the base 8, The casting in the mold Y can be discharged upward.

[0037]

In the casting apparatus according to the present invention, the casting section is rotatably provided on the mount from the horizontal state to the upright state. Therefore, when the casting section is set in the upright state, it is regarded as a vertical casting apparatus. Moreover, when the casting part is set horizontally, it can be used as a horizontal casting device, and when the casting part is rotated to perform casting, it can be used as a tilting casting device. Since the third mold moving means for moving the side mold is provided in the lower platen or the movable platen, there is an advantage that the tie bar interval can be reduced and the overall structure of the casting part can be made smaller and lighter.

[Brief description of drawings]

FIG. 1 is a front view when a casting part is rotated in a horizontal state.

FIG. 2 is an enlarged right side view of FIG. 1 when the casting portion is in an upright state.

FIG. 3 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 4 is an enlarged sectional view taken along line BB of FIG.

5 is an enlarged cross-sectional view taken along the line CC of FIG.

FIG. 6 is a plan view showing a positional relationship between a lower platen and a workbench.

FIG. 7 is an explanatory view showing a moving means.

FIG. 8 is a right side view of FIG.

[Explanation of symbols]

 A casting apparatus X upper mold (first mold) Y lower mold (second mold) Z side mold (third mold) a casting unit b work table 1 upper platen (first platen) 2 lower platen (second platen) 7 Hydraulic cylinder (driving means) 8 Base 17 Frame 22 Hydraulic cylinder (rotating means) 30 Upper surface members 31a, 31b Hydraulic cylinder (moving mechanism) 33 Connecting plate

Claims (1)

[Claims] A movable platen is provided between the first platen and the second platen, which are joined by a space holding member, and is movable by being guided by the space holding member. The movable platen and the second platen are combined to face each other to form a mold. A first die and a second die to be formed are respectively provided, and the first die and the second die which are combined are provided.
A casting part provided with a third die united to the side surface of the die, and the movable platen or the second platen for moving the third die with the first die or the second die in the middle. And a third plate moving unit including a pair of moving mechanisms, a movable platen driving unit for moving the movable platen provided on the first platen, and a pedestal that pivotally supports the casting unit. Casting part rotating means, one end side of which is rotatably supported by the casting part, and the other end side of which is rotatably supported by the gantry to rotate the casting part. apparatus.