JPS643576Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improved technique for a push-up rod for demolding in a casting apparatus for anodes, etc. for copper electrolytic refining.

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 push-up rods 4 for demolding are inserted into through holes 3 formed at predetermined positions in the bottom surface 2a of the casting recess of the molds 2 so as to be able to protrude upward. It is equipped with rotary casting machine 1.
While rotating it as shown by arrow A in Fig. 1, the casting product (anode) is poured at a point, and the casting product (anode) that is cooled and solidified during the rotation is picked up by a lifting machine 5. Continuously follow the
The purpose is to manufacture anodes.

In this case, the push-up rod 4 descends as shown in FIG. 3 during the period from pouring to take-up to close the hole 3a, and rises from the back surface of the mold 2 as shown in FIG. 4 during the take-up stage. The head of the anode 6 is pushed up, and the anode 6 is projected from the mold 2 to be removed from the mold.

By the way, the head of this push-up rod 4 comes into direct contact with the high-temperature anode 6. Therefore, as the above operations are repeated, the edges of the head of the push-up rod 4 are worn out. When worn, a gap is created when the hole 3a is closed, resulting in leakage of molten metal or product defects.
Therefore, when the push-up rod becomes worn beyond a certain level, it must be replaced with a new push-up rod.

Therefore, in order to reduce the frequency of replacement of the push-up rod, that is, to extend the life of the push-up rod, the applicant made the entire push-up rod or the head of the push-up rod from stainless steel, etc., which has excellent wear resistance. , I ended up using this. However, in this case, the following new problems were found to occur.

That is, in the continuous casting apparatus, various problems will occur if foreign matter gets caught between the push-up rod 4 and the hole opening 3a, so it is necessary to clean the mating part before the push-up rod 4 descends. There is. Therefore, the applicant has developed a cleaning device to automate this work. This cleaning device uses an electromagnet to attract the head of the push-up rod 4 and pull it up, while cleaning the area around the joint between the push-up rod 4 and the hole 3a. However, if the head of the push-up rod 4 is made of non-magnetic material such as stainless steel as described above, the push-up rod 4 will not be able to be attracted by the electromagnet, and the automatic device described above will no longer be usable. . On the other hand, when using the automatic device described above, it was found that the stainless steel push-up rods could no longer be used, resulting in the inconvenience that if one was used, the other would become unusable.

This idea was made in view of the above circumstances, and aims to provide a demolding device that can be used even when an automatic device is used to attract and pull up the push-up bar with a magnet, and has a long lifespan. purpose.

As shown in FIG. 5, the push-up bar used in the demolding device of this invention has the outer periphery of the head that contacts the cast product made up of a push-up bar body 11 and a separate ring 12; 11 is made of a magnetic material, and the ring 12 is made of a material with greater wear resistance than the rod body 11. Further, as shown in the illustrated example, the ring 12 is removably fitted to the outer periphery of the head of the rod body 11 with a screw 13 or the like, and can be replaced when worn out.

The push-up rod main body 11 is generally made of iron, and the ring 12 is made of stainless steel, but they may be made of other materials.

In the illustrated example, the lower part of the rod body 11 is thinner than the upper part. This is to increase the gap between the push-up rod and the through-hole of the mold to make it easier for foreign matter to fall when the push-up rod is pulled up to clean the area around the hole on the mold side.

Since the demolding device of this invention is constructed as described above, the edge of the push-up rod has less wear and has a long life. Moreover, if the edges become worn, only the ring needs to be replaced, which reduces costs. In addition, since the rod body made of magnetic material is exposed in the center of the head, the head is attracted by the electromagnet of the cleaning device, which has the effect of efficiently cleaning the opening of the through hole. play.

[Brief explanation of drawings]

Figure 1 is a plan view of a continuous anode casting device, Figures 2, 3, and 4 are diagrams showing the relationship between the push-up rod and mold in the same casting device, and Figure 5 is an implementation of this invention. It is a side view which made partial cross section of an example. 2... Mold, 2a... Bottom of casting recess, 3... Through hole, 3a... Hole opening, 11... Push-up rod body, 1
2...Ring, 13...Screw.

Claims (1)

[Scope of utility model registration request] A push-up device that is inserted into a through hole formed in the bottom of the casting recess of the mold so as to be able to move up and down, and is made to protrude appropriately into the casting recess, thereby pushing up the cast product with its head and removing it from the mold. In a demolding device for a casting device such as an anode, the device is equipped with a rod, the head of the push-up rod is attracted by an electromagnet to open the opening of the through hole, and the opening is cleaned.
The push-up rod has a head outer periphery that comes into contact with the cast product, and is composed of a rod main body and a ring that is a separate member, the rod main body is made of a magnetic material, and the ring is made of a material with greater wear resistance than the rod main body, A demolding device for a casting device for an anode or the like, characterized in that the ring is removably fitted to the outer periphery of the head of the rod body.