JPS6239887Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a push-up rod for demolding in a casting device such as an anode.

For example, a generally known continuous anode casting apparatus has a rotary casting plate 1, as shown in FIG.
A plurality of molds 2 are provided along the circumferential direction on the upper surface, and as shown in FIG. A lifting rod 4 is inserted so as to be able to protrude upward, and the rotary casting machine 1 is rotated as shown by arrow A in Fig. 1 to pour molten metal at a point, which cools and solidifies the cast product (anode) during rotation. The anode is taken up by a take-up machine 5 at a point, and this operation is carried out continuously as the rotary casting plate 1 rotates to produce an anode.

In this case, the push-up rod 4 closes the hole 3a as shown in FIG. 3 from pouring to take-up, and is pushed up from the back side of the mold 2 at the take-up stage as shown in FIG. The anode 6 is made to protrude from the mold 2 and removed from the mold.

Then, when the anode 6 is lifted up, the push-up rod 4 is lowered again to close the hole 3a (see Fig. 2) of the mold 2 so that the next pouring can be performed. If a foreign object gets caught between the hole opening 3a and the push-up rod 4, the hole opening 3a may not be completely blocked, and molten metal may enter there, making it impossible to perform normal casting. .

That is, as shown in Fig. 2, the hole 3a and the upper end of the push-up rod 4 are tapered fitted to seal the hole 3a, and when the push-up rod 4 is completely lowered, the push-up rod 4 cannot be pushed up The rod 4 sinks into the hole 3a and the top surface becomes flush, but if the hole 3a is clogged with foreign matter, the push-up rod 4 will not be able to descend completely and will protrude from the top surface of the bottom of the mold 2. In addition, a gap is created between the mold 2 and the push-up rod 4. Therefore, if pouring is continued in this state, molten metal will enter the gap and the bottom of the cast product will become deformed, making it impossible to perform normal casting. .

Therefore, the push-up rod 4 is usually pulled out as shown in FIG. 5 at the point just before it descends (see FIG. 1), and the area around the hole 3a is cleaned to remove foreign matter. I am doing it. However, due to space limitations and labor issues, it is difficult to completely pull out the push-up rod 4 from the hole 3, so cleaning must be done after it is pulled up halfway, as shown in Figure 5. I don't get it. Therefore, most of the small foreign objects fall down through the gap H between the wall of the hole 3 and the push-up rod 4.

By the way, this type of push-up rod 4 has a body portion 4.
By slidingly contacting the wall surface of the hole 3, the body portion 4b is guided when it is projected, and the dimensions of the body portion 4b that performs the guiding action are such that it comes into sliding contact with the wall surface of the hole 3. ing.

Therefore, in the case of a conventional push-up bar whose dimensions up to the leg at the lower end are all the same as that of the body section 4b that performs the guide function, it is necessary to pull it slightly upward and push it as shown in FIG. Even when trying to remove foreign objects from the gap H between the lifting rod 4 and the hole 3, since the gap H is relatively small, the problem is that the foreign objects are difficult to fall off and the work is laborious and time consuming.

This invention was made in consideration of the above points, and the purpose is to propose a push-up bar for demolding that allows foreign objects to fall easily.

As an example of the push-up rod 14 of this invention is shown in FIG. Body portion 14b that acts as a guide
and a leg portion 14c below the body portion 14b.

A feature of this invention is that the leg portion 14c is formed to be thinner than the body portion 14b with a stepped portion 14d in between.

Therefore, after the push-up rod 14 having the above structure is inserted into the through-hole 3 of the conventional mold 2 as shown in the figure, when the push-up rod 14 is pulled up, it is guided by the body portion 14b and tilted. If it is pulled up even slightly, a gap H' larger than the conventional one is created between the leg portion 14c and the wall surface of the hole 3 via the stepped portion 14d. Therefore, foreign objects can be easily dropped through this gap H′.
This has the effect of reducing the effort and time required for cleaning work.

It goes without saying that this invention can also be applied to push-up rods for casting machines other than those mentioned above.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a continuous anode casting device, Figs. 2, 3, and 4 are side sectional views showing the relationship between the push-up rod and the mold in the same casting device, and Fig. 5 is a plan view of a continuous anode casting device.
The figure is a side sectional view showing the relationship between the conventional push-up rod and the mold, and FIG. 6 is a side sectional view showing the relationship between the push-up rod and the mold of this invention. 2...Mold, 2a...Bottom surface of casting recess, 3...Through hole, 14...Pushing rod of this invention, 14a...
Head, 14b... Torso, 14c... Legs, 14d
...Step section.

Claims (1)

[Scope of utility model registration request] It is inserted into a through hole formed at the bottom of the casting recess of the mold, and is guided by the outer periphery of its body slidingly contacting the wall of the through hole and protrudes into the casting recess. An anode in a demolding push-up rod for pushing up and demolding a product, characterized in that a lower part of the body that acts as a guide when the product is pushed out is formed to be thinner than the body through a stepped part. Push-up rod for demolding in casting equipment such as.