JP2839387B2 - Casting equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a casting apparatus, and more particularly, to a casting apparatus.
The present invention relates to a versatile casting apparatus which can be used as a vertical casting apparatus, a horizontal casting apparatus, or a tiltable casting apparatus, and which is downsized. 2. Description of the Related Art Conventionally, a vertical casting apparatus in which a mold is vertically divided or a horizontal casting apparatus in which a mold is horizontally divided is employed depending on the shape and size of a casting to be cast. Alternatively, a tiltable casting apparatus that has a pool in the outside of the pouring gate and injects the molten metal in the pool by inclining the entire mold is used. [0003] However, since the above-mentioned conventional casting apparatus is a dedicated casting apparatus of a vertical casting apparatus, a horizontal casting apparatus or a tiltable casting apparatus, it can handle all kinds of castings. To do this, it was necessary to provide various types of dedicated casting equipment. For this reason, there is a drawback that the equipment cost increases, and the equipment may be idle. [0004] For example, when a casting to be cast is made by a tiltable casting apparatus, there has been a problem that the horizontal casting apparatus and the vertical casting apparatus have become idle and the operating rate is reduced. [0005] Further, the tilting casting apparatus has a drawback that the larger the apparatus is, the larger the weight is, and the larger the tilting drive mechanism needs to be. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is intended to provide a vertical casting apparatus.
Further, it is an object of the present invention to provide a casting apparatus which can be used as a horizontal casting apparatus or further as a tiltable casting apparatus, and is downsized. [0007] In order to achieve the above object, a casting apparatus according to the present invention has a guide between a first platen and a second platen connected by a spacing member, the guide being provided on the spacing member. A first mold and a second mold, each of which has a movable platen that is movable and is movable, and is provided on the opposite side of the movable platen and the second platen to form a mold, and the combined first mold is provided. And a third mold that is provided on a side surface of the second mold, and a movable platen or the second platen for moving the third mold with the first mold or the second mold positioned at an intermediate position. A third mold moving means including a pair of moving mechanisms provided on the first platen; a movable platen driving means for moving the movable platen provided on the first platen; and a rotatably supporting the casting section. A stand, One end is rotatably supported by the casting section, and the other end is rotatably supported by the gantry, and has casting section turning means for rotating the casting section. In the above construction, the casting part is pivotally supported on the gantry by the casting part rotating means and rotates. Therefore, when the casting part is rotated and positioned in an upright state, the casting part can be used as a vertical casting device, and when the casting part is rotated and positioned in a horizontal state, The casting part can be used as a horizontal casting device. On the other hand, the combined mold of the first mold, the second mold and the third mold set in the casting section is rotated with the rotation of the casting section, so that it can be used as a tiltable casting apparatus. Becomes The combination of the first mold and the second mold is performed by moving the movable platen, and the combination of the third mold with the mold in which the first mold and the second mold are combined is a combination of a pair of moving mechanisms. This is performed by the type 3 moving means. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a casting apparatus A, showing a state in which a casting part a is rotated in a horizontal direction.
Is a right side view of FIG. 1 and shows an enlarged view of a state in which the casting part a has been turned upright. [0012] The cast part a has a substantially square first plane shape.
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 are included.
As shown in FIGS. 3 and 4, three corners are connected with a tie rod (spacing member) 4 at predetermined intervals. The movable platen 3 is provided between the upper and lower platens 1 and 2 and 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 provided movably.
Therefore, a guide rod 6 is provided at a corner corresponding to the sliding cylinder 5 of the movable platen 3. The movable platen 3 is configured 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 7 a of the hydraulic cylinder 7 passes through the hole 2 a provided in the upper platen 1 and is fixed to the upper surface of the movable platen 3. . Therefore, the piston rod 7
When a moves up and down, the movable platen 3 can move up and down accordingly (see arrow A). 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 an upper mold) for forming a single mold by being united to obtain a casting having a desired shape.
A lower mold (Y) and a third mold (hereinafter referred to as a side mold) Z are provided, and the upper mold X and the lower mold Y are fixed to opposing surfaces of the movable platen 3 and the lower platen 2, respectively. The mold Y is fixed via a base 8 placed on the lower platen 2. The side mold Z is provided via a third mold moving means of a moving mechanism including a pair of hydraulic cylinders described later mounted on the base 8. The base 8 is fixed to the lower platen 2 by a clamp mechanism 10 whose four corners are operated by a hydraulic cylinder 9 provided on the lower platen 2.
When 0 is released, the base 8 can be moved. The lower platen 2 and the movable platen 3 are provided with extrusion means 11 and 12, respectively, for extruding a casting (product) from the mold when the upper mold X and the lower mold Y are released from the mold. Among them, the extrusion means 11 is used when attaching a casting to the upper mold X, and the extrusion means 12 is used when attaching the casting to the lower mold Y. A discharge extrusion pin used for removing a casting from the upper mold X or the lower mold Y is separately provided. That is, the discharge push-out pin 11a when removing the casting from the upper die X penetrates the movable platen 3 and the upper platen 1
The casting is discharged using the protrusion of the discharge push-out pin 11a obtained by moving the movable platen 3 toward the upper platen 1 (see FIG. 2; FIG. 1).
In order to avoid complication of the drawing, the ejection push pin 11a is omitted. ). Further, a discharge push-out pin 12a used for removing a casting from the lower mold Y is provided on a work table b described later. This will be described later. The extruding mechanism of the extruding means 11 and 12 is performed by using an extruding pin operated by a hydraulic cylinder similarly to a known extruding mechanism. However, the extruding 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 the hydraulic cylinders 13a, 13b. 7 includes a connecting plate 14 having an opening through which the piston rod 7a passes, and an extruding pin 15 fixed to the connecting plate 14. Therefore,
The pushing means 12 on the movable platen 3 side can be reduced in size, and as a result, the distance between the upper and lower platens 1 and 2 can be reduced to make the casting part a smaller and lighter. One side of the casting part a (lower side in FIG. 1, FIG. 2
A frame 16 is provided on the back side of the frame 16, and the lower platen 2 side of the frame 16 is rotatably supported by a pair of mounting pieces 18 provided on a gantry 17. A stopper 19 for positioning the rotating casting part a in a horizontal state is provided on the left end side of the gantry 17, and an upright state of the casting part a is positioned on the right end side. A stopper 20 is provided. Further, on the right end side, a protruding pin 21 which is operated by a pneumatic cylinder for fixing the casting part a which is positioned in the upright state is provided. 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 up, the projecting pin 21 is inserted into the hole 21a so that the casting part a stands upright. It is held and fixed. A substantially central position of the frame 16, that is,
At a position on the upper platen 1 side of the support position of the frame 16, a tip end portion of a piston rod 22 a of a hydraulic cylinder (casting portion turning means) 22 rotatably provided on the gantry 17 is provided rotatably. ing. The main body of the hydraulic cylinder 22 is rotatably supported on the gantry 17.
For this reason, when the hydraulic cylinder 22 is driven and the piston rod 22a is extended, the casting part a is rotated about the pivot position as shown by the arrow B in FIG. By such a rotation, the casting part a is held in an upright state, and when the movable platen 3 is operated and casting is performed only in this upright state, the casting part a is used as a vertical casting apparatus. Can work. When the casting part a is held in a 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 apparatus. Further, the mold is assembled while the casting part a is in an upright state, and is poured into a pool of the mold.
Thereafter, when the casting part a is rotated and cast, the casting part a can function as a tiltable 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 (merged) to the combined mold of the upper mold X and the lower mold Y, and the left half shows a state separated from the mold, and the movement of the side mold Z The means (third mold moving means) 30 is configured in the same manner as the pushing means 12. That is, the moving mechanism of the side die Z includes a pair of hydraulic cylinders 31a and 31b disposed on the left and right sides of the lower die Y and fixed on the base 8;
1a, 31b, and is connected to the piston rods 32a, 32b and is fixed to the side plate Z and the fixed connecting plate 33. Therefore, the pair of hydraulic cylinders 31a, 3
1b is able to move the side mold Z while being tuned by the connecting plate 33. Moreover, the pair of hydraulic cylinders 31
Since a and 31b do not protrude from the base 8,
Compared to moving the side die Z by the conventional single hydraulic cylinder 34 as shown by a chain line in FIG.
(The vertical tie bar in the example of FIG. 5) can greatly reduce the interval. In other words, in the case of the conventional single hydraulic cylinder 34, the upper tie bars 4, 4 become tie bars 4 ', 4' shown by chain lines, and if the interval between the tie bars 4, 4,. Lower platen 2,
The movable platen 3 also increases in size, and the hydraulic cylinder that drives the movable platen 3 also increases in size. The side die Z may be provided on the movable platen 3 without being provided on the base 8, that is, on the lower platen 2. As described above, when the casting part a is used as a tiltable casting device, the pushing means 12 on the movable platen 3 side is used.
In addition to reducing the size, the moving mechanism of the side die Z is located on the base 8 to reduce the interval between the tie bars 4, 4,. There is an advantage that the hydraulic cylinder 22 can be downsized. The casting apparatus A according to the present embodiment includes a lower platen 2 near the lower platen 2 in a state in which the casting part a stands upright.
Work tables b having substantially the same plane as those of FIG. 6 are arranged side by side, and FIG. 6 shows a positional relationship between the lower platen 2 and the work table b on a plane. The lower platen 2 and the upper surface member 40 of the work table b are provided with a plurality of rollers 41, 41,... There are provided a plurality of rollers 42, 42,... 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 movement of the base 8 is performed by a hydraulic cylinder (moving means) 43 provided on the lower surface of the lower platen 2. That is, the direction of expansion and contraction of the piston rod 43a of the hydraulic cylinder 43 (see the arrow C in FIG. 7) is directed toward the work table b, and
A pin 45 that is moved up and down 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 on the lower surface of the base 8 and the hydraulic cylinder 4
When the piston rod 43a is extended by driving the base 3, 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 denotes a fixed pin driven by a pneumatic cylinder which is positioned when the base 8 is positioned on the work table b. As shown in FIG. 8, the upper surface member 40 of the work table b is configured to be able to be moved upward from the same position as the lower platen 2 by a hydraulic cylinder (elevating means) 46. That is, the upper surface member 4
Reference numeral 0 denotes a structure in which a frame 47 supporting the upper surface member 40 is moved up and down by a hydraulic cylinder 46 provided on a gantry 48 of the work table b. Therefore, when the worker sets the core in the lower mold Y on the work table b or takes out the casting from the lower mold Y, the work does not become stiff. Good workability. The work table b is provided with a discharge push-out pin 12a for taking out a casting from the lower die Y. That is, the extrusion pin 12 for discharging is provided on the frame 47a.
a is provided, and the discharge push-out pin 12a reaches the lower die Y via 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. In the casting apparatus according to the present invention, since the casting section is provided on the gantry so as to be rotatable from a horizontal state to an upright state, when the casting section is set in the upright state, the vertical casting is performed. It can be a horizontal casting device when the casting part is set in a horizontal state, and can be used as a tiltable casting device when the casting part is rotated to perform casting. Since the third mold moving means for moving the side mold is provided in the lower platen or the movable platen, the interval between the tie bars can be reduced and the entire structure of the casting section can be reduced in size and weight. There is.

BRIEF DESCRIPTION OF THE 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 a casting part is in an upright state. FIG. 3 is an enlarged sectional view taken along line AA of FIG. 1; FIG. 4 is an enlarged sectional view taken along line BB of FIG. 1; FIG. 5 is an enlarged sectional view taken along line CC of FIG. 2; FIG. 6 is a plan view showing a positional relationship between a lower platen and a work table. FIG. 7 is an explanatory view showing moving means. FIG. 8 is a right side view of FIG. [Description of Signs] A Casting device X Upper die (first die) Y Lower die (second die) Z side die (third die) a Casting part b Work table 1 Upper platen (first platen) 2 Lower platen ( 2nd platen) 7 hydraulic cylinder (driving means) 8 base 17 gantry 22 hydraulic cylinder (rotating means) 30 upper surface members 31a, 31b hydraulic cylinder (moving mechanism) 33 connecting plate

Claims (1)

(57) Claims A movable platen is provided between the first platen and the second platen joined by the spacing member, and is movable by being guided by the spacing member. A first mold and a second mold which are combined to form a mold on the opposite side are provided, respectively, and the combined first mold and second mold are provided.
A casting portion provided with a third mold that is combined with a side surface of the mold; and a movable platen or the second platen provided to move the third mold with the first mold or the second mold positioned in the middle. A third mold moving means comprising a pair of moving mechanisms, a movable platen driving means for moving the movable platen provided on the first platen, and a gantry rotatably supporting the casting section. Casting part rotating means rotatably supported at one end by the casting part and rotatably supported at the other end by the gantry to rotate the casting part. apparatus.