JP2582658B2 - Horizontal clamping vertical casting die casting machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an improvement of a horizontal clamping vertical casting die casting machine.

(Prior Art and its Problems) FIG. 8 shows a conventional horizontal casting vertical casting die casting machine of the type in which a casting device 7 'is tilted. Pouring device 7 'arranged immediately below
Mold around the pivot axis 6 'which coincides with the center line CL' of
It falls in the direction of 1b '. At this falling point (the center line is indicated by a dashed line), the molten metal 3 'is poured from the ladle 9' into the casting sleeve 4 '. The casting device 7 ′ is moved up and down by the tilting cylinder 8. In this case, if it is attempted to tilt the pouring device 7 'at the same time as opening the mold in order to perform cycle-up,
As shown in FIG. 9, the tip 5 'of the casting device 7' on the side opposite to the falling side draws an arc as shown by a two-dot chain line and comes into contact with the fixed mold 1a ', so that the tilting operation cannot be performed. . Before tilting the pouring device 7 'to prevent this,
The casting cylinder 4 '
The block 11 'mounted on the upper part of the mold 0' is lowered to be detached from the runner hole 12 'of the mold 1', and is tilted to the hot water supply position after the detachment is completed. Therefore, the operation of raising and lowering the block 11 'is required, which not only increases the working time, but also requires a device for performing the operation. In addition, since the inclining direction of the pouring device 7 'is on the side of the fixed mold 1a', the hot water supply position, which is the stop position of the completion of the inclination, is displaced from between the divided surfaces P of the mold 1 ', and the mold is opened. The air blow, water spray cooling, and lubricant application of the split surface P 'of the mold 1' and the casting sleeve 4 'must be performed separately, which has the disadvantage of complicating the operation. ′ Descends and then tilts toward the fixed mold 1a ′ side, which is a movement irrespective of the mold opening of the mold 1 ′. Usually, the casting that adheres and moves in the movable mold 1b ′ is Troubles remaining on the fixed mold 1a 'side cannot be prevented.

(Purpose of the Invention) The present invention has been made in view of the drawbacks of the conventional example. The purpose of the present invention is not only to increase the cycle by tilting the casting apparatus to the moving mold side opposite to the conventional one at the same time as opening the mold, but also In addition, the cast product can be securely attached to the moving mold and moved, and when the mold is opened, the split surface of the mold and the tilt stop position of the casting device are matched to air blow the casting sleeve. Another object of the present invention is to provide a horizontal clamping vertical casting die casting machine capable of simultaneously performing water spray cooling and lubricant application.

(Means for Solving the Problems) In order to achieve the above object, a horizontal clamping vertical casting die casting machine of the present invention comprises: a mold clamping device 2 for opening the mold 1 in a horizontal direction; A casting sleeve 4 disposed directly below the mold dividing surface P when the mold 1 is clamped and for casting the molten metal 3 into the mold 1 in an upward direction, and a casting sleeve 4 connected to the mold 1 The distance A from the center CL of the casting sleeve 4 to the pivot shaft 6 for pivoting the casting sleeve 4 up and down is greater than the distance C from the center line CL of the casting sleeve 4 to the tip 5 of the casting sleeve 4. The pivot shaft 6 is set on the fixed mold 1a side so that the casting sleeve 4 is tilted toward the movable mold 1b, and the casting sleeve 4 is tilted toward the movable mold 1b. The tilting cylinder 8 is attached to the casting device 7 equipped with.

(Operation) When the solidification of the die casting 13 in the mold 1 is completed, the movable mold 1b is opened, and at the same time, the casting device 7 is tilted in the mold opening direction of the movable mold 1b in accordance with the opening of the movable mold 1b. Then, the runner 12a of the die casting 13 is extruded in the moving direction. Thus, the cycle can be improved.

Further, since the casting device 7 is tilted in the mold opening direction of the movable mold 1b, the surface of the mold 1, the inside of the casting sleeve 4 and the tip of the plunger tip 27 are simultaneously cleaned, and then water spray cooling is performed. In addition, a lubricant can be applied to these.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. FIG. 1 is a sectional view of a main part of a die casting machine according to the present invention. The fixed die 1a is mounted on the fixed plate 14, and the movable die 1b moves in the horizontal direction with respect to the fixed die 1a to perform horizontal die clamping. The movable mold 1b is mounted on a movable plate 15, and the movable plate 15 is supported by a movable cart 16 attached to a lower end portion and moves along a tie bar 17 attached to four corners. It has become. In the present embodiment, the movable mold 1b is opened and clamped by the mold clamping device 2. In the present embodiment, the mold clamping device 2 employs a toggle mechanism, but is not limited to this. The movable die 1b is provided with an eject pin 19, and the movable die 1b is opened when the die is opened.
The die casting 13 that has adhered and moved to the side is ejected. The casting device 7 is composed of a casting cylinder 10 mounted on the lower end of the portal frame 20 and a casting sleeve 4 mounted on the upper end of the portal frame 20, and is interlocked with the piston rod 10 a of the casting cylinder 10. The plunger tip 27 moves up and down in the casting sleeve 4. The pivot 6 is mounted on a portal frame 20 and has a casting sleeve 4 connected to the mold 1.
C from the center line CL to the tip 5 of the casting sleeve 4
Therefore, the distance A from the center CL of the casting sleeve 4 to the pivot shaft 6 for pivoting the casting sleeve 4 up and down is set to be larger. Further, the pivot shaft 6 is disposed close to the fixed mold 1a so that the casting sleeve 4 is tilted toward the movable mold 1b. In order to tilt the casting sleeve 4 toward the movable mold 1b as described above, the tilting cylinder 8 is installed on the fixed side below the pivot shaft 6, and is fixed to the frame 30. The spray device 21 includes a column 22 erected on the fixed plate 14, a horizontal arm 23 mounted on the column 22, a spray cylinder 24 attached downward to the tip of the horizontal arm 23, and a lower end thereof. The mold is composed of a fixed mold 1a, a movable mold 1b, and a pipe 25 bent toward the tip end opening of the casting sleeve 4 that has stopped tilting.

As shown in FIG. 1, in the mold open state, the molten metal 3 is gently supplied from the ladle 9 to the tilted casting sleeve 4, and thereafter, the tilting cylinder 8 is operated to vertically set the casting device 7 upright. At the same time, the mold clamping device 2 is extended to move the movable mold 1b to the fixed mold 1a to perform mold clamping. When the mold clamping is completed, the leading end of the casting sleeve 4 is fitted into the runner hole 12 between the divided surfaces P of the fixed mold 1a and the movable mold 1b as shown in FIG. After that, the casting cylinder 10 is operated to cast the molten metal 3 into the cavity in the mold 1 to form the die casting 13. When the solidification of the die casting 13 is completed, the movable mold 1b is opened by operating the mold clamping device 2 in the folding direction, and at the same time, the tilting cylinder 8 is also operated in the extension direction to move in accordance with the opening of the movable mold 1b. The mold 1b is tilted in the mold opening direction, and the runner 12a of the die casting 13 is pushed out in the moving direction. At this time, since the pivot shaft 6 is outside the radius of the casting sleeve 4, the tip 5 of the casting sleeve 4 on the pivot shaft 6 side tilts around the pivot shaft 6 in an arc. However, since the tip 5 does not come out above the tip of the casting sleeve 4 in the vertical state, it does not interfere with the mold 1 at the time of tilting, and can be tilted about the pivot shaft 6 as it is. You can do it. At a position just before the mold opening is almost completed, the eject pin 19 operates to push the die casting 13 out of the movable mold 1b.

When the opening of the movable mold 1b and the tilting of the casting device 7 are completed, the pipe 25 of the spray device 21 descends to the space between the molds 1 with the extension of the rod of the spray cylinder 24, and the pipe 25 is moved to the movable mold 1b and the fixed mold. It stops at the position facing the tip opening of the mold 1a and the tiltable casting sleeve 4. After that, pipe 25
Compressed air is blown out from the mold to clean the mold dividing surface P, the inside of the casting sleeve 4 and the tip of the plunger tip 27, and then water spray cooling is performed, and finally, a lubricant is applied to these. When the lubricant application is completed, return to the beginning and
Of molten metal is performed.

(Effect of the present invention) In the horizontal clamping vertical casting die-casting machine of the present invention, the casting sleeve can be moved up and down from the center of the casting sleeve by the distance from the center line of the casting sleeve connected to the mold to the tip of the casting sleeve. The distance to the pivot axis to be pivoted to is set larger, and the pivot axis is installed on the fixed mold so that the casting sleeve falls down to the moving mold side. Since the tilting cylinder is mounted on the casting device equipped with a casting sleeve so as to tilt, the casting device can be tilted to the moving mold side at the same time as opening the mold, thereby enabling cycle up and casting device to cast the casting. In order to feed while pushing in the moving direction of the moving mold,
The casting can be adhered to the moving mold and securely moved.Furthermore, by aligning the split surface of the opened mold with the tilt stop position of the casting device, air blowing of the casting sleeve, water spray cooling, lubricant There is also an advantage that coating can be performed simultaneously.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of an embodiment of the die casting machine of the present invention. FIG. 2 is a front view of a casting sleeve according to the present invention. FIG. 3 is a central longitudinal sectional view of FIG. ··· Cross-sectional view showing the positional relationship between the tilt trajectory of the casting sleeve and the ladle during hot water supply in the present invention. Fig. 5 ··· Enlarged vertical cross-sectional view showing the relationship between the tip of the casting sleeve and the runner in the present invention. FIG. 7 is a front view showing a state where the die casting machine of the present invention is being sprayed. FIG. 7 is a process diagram showing one cycle of the die casting machine of the present invention. FIG. 8 is a sectional view of a conventional example. ... Enlarged longitudinal sectional view showing the relationship between the tip of the casting sleeve and the runner in the conventional example. CL ... Center line of the casting sleeve P ... Partition plane of the mold C ... Tip of the casting sleeve from the center line of the casting sleeve. Distance to the part A: Casting Distance from center line of shaft to pivot axis 1 ... Mold, 1a ... Fixed mold 1b ... Movable mold, 2 ... Molding device 3 ... Molten metal 4, Casting sleeve 5 ... Tip of casting sleeve 6 ... Pivot, 7 ... Casting device 8 ... Tilt cylinder, 9 ... Laddle 10 ... Casting sleeve, 10a ... Pislon rod 11 ... Block, 12 ... Running hole

Claims (1)

(57) [Claims] 1. A mold clamping device for opening a mold in a horizontal direction, and a mold clamping device for disposing a molten metal in an upward direction, which is disposed immediately below a mold dividing surface when the mold is clamped. The distance from the center of the casting sleeve to the pivot axis for pivoting the casting sleeve up and down from the distance between the casting sleeve for casting and the center line of the casting sleeve connected to the mold to the tip of the casting sleeve. Is set larger, and the pivot axis is installed on the fixed mold side so that the casting sleeve falls down to the moving mold side, and the casting sleeve is mounted so that the casting sleeve tilts toward the moving mold side Horizontal casting vertical casting die casting machine characterized by mounting a tilting cylinder on the casting device.