JPS6235555Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mold matching machine characterized by a mold horizontal level adjustment mechanism that adjusts the horizontal level of mold mating surfaces.

The mold matching machine on the molding line is an important piece of equipment that combines the individually molded upper and lower molds into a single set of molds, and the accuracy of the combination operation in particular influences the accuracy of the produced castings. This is an extremely important element and can be broadly classified as follows.

(b) Alignment of the upper mold and lower mold in the horizontal plane (b) Adjustment of parallelism between the mating surfaces of the upper and lower molds during mold alignment operation (adjustment to horizontal level) ), various improvements have been made in the past that have been developed that are satisfactory in terms of performance, and as for the upper die in (b) above, it is used by being handled by a precisely machined mechanism. Although it is not a particular problem, the above (b)
It is difficult to adjust the horizontal level of the mating surface of the lower mold.

To explain a conventional mold matching machine, as shown in Fig. 1, a pallet b supporting a lower mold a, and an upper mold c
A lifting carriage d that handles the mold, a roller e that transports the lower mold together with the pallet, and a push-up cylinder g that pushes the lower mold up and positions it through the pallet.
In the case of a lower mold a, a pallet b is spread on the underside of the lower mold a, and the mold is conveyed onto a push-up cylinder g by a roller e, and is usually in contact with the back side of the mold (lower surface in the figure), that is, the pallet b. The horizontal level of the mating surface (top side in the figure) is adjusted by scraping the sand mold surface, but the work of scraping the sand mold surface and adjusting the horizontal level of the mating surface is troublesome and difficult, and it also requires long-term use. This causes problems such as unevenness on the upper surface of the pallet b, and furthermore, it is difficult to maintain the levelness of the mating surfaces of the molds, that is, the horizontal level, using only the push-up cylinder g.

The present invention relates to a device to eliminate the above-mentioned drawbacks of conventional mold matching machines, and includes a stopper arm for mold level adjustment provided on the mating surface side of the mold, and a stopper arm provided on the back side of the mold to support the mold. The mold horizontal level adjustment mechanism is equipped with a cylinder with a locking mechanism that can be stopped at any stroke position to adjust the horizontal level. The object of the present invention is to provide a mold matching machine that eliminates the above-mentioned drawbacks by having a mechanism that can adjust the horizontal level of the mating surfaces of the molds extremely easily and with high precision and maintain that precision regardless of the situation.

The present invention has the above-mentioned structure, and when the mold is supported and moved by a cylinder with a locking mechanism,
The horizontal level is adjusted by the contact of the mating surface side of the mold with the stopper arm which has been adjusted to the stopper position in advance, and the cylinder with the locking mechanism is locked and stopped in the adjusted state of the horizontal level, so that the horizontal level of the mold mating surface is adjusted. The level can be adjusted very easily and accurately, and the accuracy is maintained, and mold matching performance and workability are improved, as well as casting processing accuracy and reliability are significantly improved.

An embodiment of the present invention will now be described with reference to the drawings.
FIG. 2 to FIG. 4 show an embodiment of the present invention. In the drawings, 1 is a lower die or mold supported on a pallet 2, 3 is an upper die or mold which is handled by a lifting carriage 7 and combined with the lower die 1, 4 is a roller which conveys the lower die together with the pallet 2, 5 is a frame, and 6 is a locator. In this embodiment, a cylinder 11 is pivotally attached to the vertical frame of the frame 5.
A plurality of stopper arms 10 are provided which are rotated via links 12 by means of a lock mechanism and positioned above the mating surface (top surface side in the figure) of the lower die 1, and a plurality of cylinders 20 with locking mechanisms are fixed to the frame 5 and erected below the pallet 2 which is carried in by the rollers 4 and supports the lower die 1.

Furthermore, as shown in FIG. 3, the cylinder 20 with a locking mechanism includes a cylinder 21, a piston slidably inserted into the cylinder 21, a piston rod 22, and a push side port 23 attached to the cylinder.
a, the pull side port 23b, etc., and an extendable lock sleeve 26 surrounding the protruding piston rod 22 is connected to the head 25 of the cylinder 21, and the inside of the lock sleeve 26 is connected to the head 25 of the cylinder 21. A port 27 for locking and unlocking is provided which communicates with the lock sleeve 26, and seal members 28a and 28b are provided on the front and rear sides of the lock sleeve 26.
A mechanism not shown in the drawings supplies pressurized air through the port 27 to the inside of the lock sleeve 26, that is, between the lock sleeve 26 and the piston rod 22, and expands the lock sleeve 26 as shown by the dotted line to extend and retract the piston rod 22. In addition, by creating a negative pressure inside the lock sleeve 26 through the port 27, the lock sleeve 26 is brought into close contact with the outer periphery of the piston rod 22.
The structure is such that the piston rod 22 can be locked and stopped at any position in the stroke. Furthermore, as shown in FIGS. 4A and 4B, two ports 27a and 27b for locking and unlocking are provided at both ends of the locking sleeve 26 to improve the operability of the locking sleeve 26. A protrusion 26a is provided on the inner surface of the piston rod 26 to increase the frictional force with the piston rod 22, thereby improving the locking force.

The illustrated embodiment has the above-mentioned configuration, and to explain the operation and effect, the lower die 1 is placed on and supported by the pallet 2 and guided to the rollers 4 by a conveyance mechanism not shown. It is fed in, stopped, and positioned by the locator 6.

On the other hand, the plurality of stopper arms 10 are rotated from the dotted line position by the cylinder 11 via the link 12 to the solid line position shown in FIG. is adjusted to within the horizontal level as shown by the stopper member.

Next, when the piston rods 22 of the plurality of lock mechanism cylinders 20 are extended and the lower mold 1 is pushed up through the pallet 2, the mating surface of the lower mold 1, that is, the upper surface side in the figure, comes into contact with the tip of the stopper arm 10. The mating surface of the lower mold 1 is adjusted to a horizontal level and stopped, and in the state of horizontal level adjustment, the port 27 (or 27a,
27b), the lock sleeve 26 tightly contacts the outer peripheral surface of the piston rod 22 as shown in FIG. 3 or FIG. 4B, and the expansion and contraction of the piston rod 22 is stopped. Since the cylinder 20 is locked, the mating surface (upper surface side in the figure) of the lower die 1 is accurately maintained at the horizontal level adjustment position via the pallet 2 by the locked cylinder 20 with the locking mechanism.

Therefore, when the stopper arm 10 is set to the dotted line position by the cylinder 11 via the link 12 and is retracted from above the lower mold 1, the upper mold 3 is lowered by the lifting carriage 7. The lower surface side) is matched with the mating surface of the lower mold 1 (the upper surface side in the figure) at the same horizontal level, that is, the horizontality. Further, the stopper arm 10 is specifically designed to come into contact with the flask of the lower die 1, thereby preventing damage to the mating surface side.

Therefore, according to the embodiment, when the lower mold, that is, the mold, is supported and moved by the cylinder with a locking mechanism, the mating surface side of the mold comes into contact with the stopper arm that has been adjusted to the stopper position in advance, and the horizontal level is adjusted. In addition, since the cylinder with the locking mechanism is locked and stopped when the horizontal level is adjusted, the horizontal level of the mold mating surface can be adjusted very easily and precisely, and its accuracy is maintained, improving the mold matching performance and its operation. Along with improved performance, casting processing accuracy and reliability are significantly improved.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a conventional mold matching machine, Fig. 2 is a side view showing an embodiment of the present invention, Fig. 3 is an enlarged sectional view showing the cylinder with a locking mechanism shown in Fig. 2, and Fig. 4 is a side view showing a conventional mold matching machine.
Figures A and B are a sectional view showing another example of the locking mechanism portion of Fig. 3 and a sectional view showing its mode of use. 1: Mold (lower mold), 10: Atsupa arm, 1
1: Cylinder, 20: Cylinder with lock mechanism, 2
2: Piston rod, 26: Lock sleeve, 2
7, 27a, 27b: Port.

Claims (1)

[Scope of utility model registration request] A mold having a stopper arm for mold level adjustment provided on the mating surface side of the mold, and a cylinder with a locking mechanism that is provided on the back side of the mold and can be stopped at any stroke position to support the mold and adjust the horizontal level. A pattern matching machine characterized by being equipped with a horizontal level adjustment mechanism.