JPS6338074Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a casting machine for an anode plate (hereinafter referred to as an anode) for metal electrolytic refining.

In anode casting, a method is generally adopted in which a large number of anodes of a specific shape are produced by flat pour casting using a turntable casting machine, which is an important process in maintaining the production capacity of a metal smelting factory. It has become one of the In the following description, a copper anode will be described where the greatest effect can be obtained by applying the present invention.

In the anode casting process, molten copper is poured from the refining furnace sprue, through the gutter, through the measuring pot, and into a mold on a turntable in that order.The mold that received the molten copper is cooled and solidified while being moved by the rotation of the turntable. The anode is continuously transported using a lifting machine, a lifting machine for stripping, a transporting machine, a transfer machine, and a water tank conveyor, and is then transported to an electrolytic plant or stockyard. In addition, there is no cushion during the casting process, so if a problem occurs in even one place, the entire process has to be stopped, and since the casting process involves high-temperature melt, once the process is stopped, problems such as melt solidification may occur. The downtime is several times the net time required to repair just the cause. Therefore, troubles are extremely difficult to occur in the anode casting process.

By the way, after the stripping machine, all anodes are suspended and conveyed by ears formed on the anodes. The ears of the anode are designed to be as short as possible, since unnecessarily long ears not only increase the castback rate but also require wasted area in the electrolytic plant. Since the ears are short, in order for the stripping machine to lift the anode correctly, the centerline of the stripping machine and the centerline of the mold, that is, the centerline of the anode, must be exactly aligned at the position where the stripping machine lifts the anode. It is a requirement that the

However, in conventional anode casting machines, the mold placed on the turntable may shift during use, and in particular, when the anode is pushed up from the mold, the mold is difficult to separate and the mold also lifts off the turntable. In addition, since the mold is replaced relatively frequently, the center line of the stripping machine and the center line of the mold, that is, the center line of the anode, are likely to be misaligned. Therefore, the anode cannot be hung correctly by the stripping machine, leading to an accident in which the anode falls off or hangs from the hook of the stripping machine, transfer machine, or water tank conveyor, and the entire casting system immediately stops. The problem is that the damage caused will be extremely large.

By the way, it is a matter of course that the relative positional relationship between the object to be lifted and the lifting hook should be fixed correctly in advance, and there are various ways to do this, but as mentioned above, the matrix is relatively often used. Since it is replaced, it is necessary to use an easy fixing means. The inventors first tried fixing the upper sides of the mold with turntable girders. However, this case failed for the following reasons.

That is, the dimension between the tops of both sides of the mold and the center line is:
This is because it was not necessarily constant due to the dimensional accuracy of the mother mold or deformation during use.

The present invention was developed in view of the above points. In other words, the present invention always aligns the center line of the stripping machine with the center line of the anode in the mold to ensure that the anode is accurately removed without any stripping mistakes. The object of the present invention is to provide an anode casting machine that can be lifted.

Next, the structure of the present invention for achieving the above object will be explained with reference to drawings corresponding to embodiments.

That is, in the present invention, molten metal is successively poured into a large number of molds 4 set on a turntable 1, and the poured molds 4 reach a stripping position by the rotation of the turntable 1. At this time, the anode 3, which is a cast product, is pushed up by moving the push-up rod 8 upward through the through hole 4a provided in the bottom of the mold 4, and at the same time, the front end of the anode 3 is removed by the stripping machine 11. In an anode casting machine in which the anode 3 is removed from the mold 4 and transported by lifting the left and right ears 3a, 3a, when the anode 3 is lifted from the mold 4 by the peeling machine 11, The center of the anode on the bottom surface of the mold 4 is located at the front and rear concave holes 5 and 6 or the front and rear protrusions for positioning the mold 4 fixedly on the turntable 1 so that the center line of the anode inside the mold 4 matches the center line of the stripping machine. Front and rear convexes are provided at the front and rear of the through hole 4a below the line, and at the front and rear positions corresponding to the front and rear concave holes 5 and 6 or the front and rear convexities under the stripping machine center line locus of the turntable 1, and which fit with these. The present invention provides an anode casting machine characterized by having an opening 7 or a recessed hole at the front and rear.

Hereinafter, the present invention will be explained with reference to an illustrated embodiment.

FIG. 1 shows an anode casting machine, and reference numeral 1 denotes a turntable that is continuously rotated by drive devices P and P, repeating high and low speeds at regular intervals.
On this turntable 1, as shown in FIG. 2, a large number of base bars 2 for mold setting are arranged around the entire circumference of the turntable 1. It is perpendicular to the tangential direction.

Molds 4 for anodes 3 are installed in parallel between the adjacent base bars 2, 2. As shown in FIGS. 3 to 4, positioning holes 5 and 6 are formed in the front and rear of the bottom of each mold 4, and the positioning holes 5 and 6 are located along the center line of the mold 4. ,
That is, it is located below the center line CL-CL of the anode 3 along the rotational direction of the turntable 1. The positioning recesses 5 and 6 have the same shape, and the fifth
As shown in FIG. 6, tapered inner surfaces 5a and 6a open toward the bottom, and a semicircular inner bottom surface 5b.
6b.

On the other hand, on the upper surface of each of the base bars 2, as shown in FIGS. 4 to 7, a center piece 7 as a protrusion is provided to protrude and fit into the positioning recesses 5 and 6. This center piece 7 has a positioning surface 7a that comes into contact with the inner surfaces 5a and 6a of the positioning recessed holes 5 and 6, and the height h of the center piece 7 is equal to the depth of the positioning recessed holes 5 and 6. It is considered to be smaller than H.

In addition, below the center line CL-CL of each mold 4 above,
As shown in FIGS. 3 and 4, a through hole 4a is formed through the bottom side. A push-up rod 8 of the anode 3 is inserted into the through-hole 4a so as to be movable up and down, and the lower end of the push-up bar 8 is connected to a vertical movement operating device in the turntable 1 (not shown). The shape of the mold 4 is such that the anode 3, which is a casting product, has ears 3a, 3a at symmetrical positions with respect to the center line CL-CL.

Further, the turntable 1 includes a pouring device 9, a cooling device and exhaust gas duct 10, and an anode stripping machine 1.
1, a transfer machine (not shown), a water tank 18, etc. are attached. The pouring device 9 operates when the turntable 1 stops at a fixed position, or operates in synchronization with the rotation of the turntable when the turntable 1 rotates at a low speed, so that the pouring device 9 pours the pouring material into each mold 4 from the pouring port. The required amount of molten metal can be poured almost continuously into the tank, and the cooling device and exhaust gas duct 10 are located between the pouring device 9 and the stripper 11.

The stripping machine 11 is provided along the tangential direction of the turntable 1 as shown in FIG.
As shown in FIG. 9 and FIG.
It has 2. These left and right peeling mechanism parts 12,1
2 is a pair of endless stripping conveyors 1, respectively;
3, 13, and the stripping conveyors 13, 13 are wound around sprockets 14, 15, 16 and a driving sprocket.

A large number of stripping hooks 17 are attached to the stripping conveyors 13, 13 at regular intervals. These left and right peeling hooks 17, 17
is shaped to be engaged with the ears 3a, 3a of the anode 3.

The center piece 7 on the turntable 1 is below the center line of the stripping mechanism parts 12, 12, that is, the center line TL-TL trajectory between each stripping conveyor 13, 13, transfer machine, and water tank conveyor. It is located. Therefore, the center line TL of the stripping machine 11
-TL and the center line of the anode 3 in the mold 4 CL-C.
It is consistent with L.

The operation of the configuration described above will be explained.

The turntable 1 is rotated clockwise in FIG. 1, and a predetermined amount of molten metal such as copper is poured into the mold 4 in the order in which it is positioned below the pouring device 9. The poured mold 4 is rotated and passed through a cooling device and an exhaust gas duct 10, but at this time, the molten metal in the mold 4 is cooled to a predetermined temperature, and the anode has reached a hardness that does not deform. It becomes 3. Further, the mold 4 and the anode 3 in the mold 4 are rotated, and the push-up rod 8 is extended upward while moving between the cooling device and the exhaust gas duct 10 and the stripping machine 11. The sides are pushed up from within the mold 4.

Then, when the mold 4 and the pushed-up anode 3 reach the lower part of the stripping machine 11, the first
As shown in FIG.
a and 3a in this order. At this time, anode 3
And since the center line CL-CL of the mold 4 and the center line TL-TL of the peeling machine 11 match,
The peeling hooks 17, 17 will be engaged precisely and reliably with the ears 3a, 3a, even if the ears 3
Even if the lengths a and 3a are short, there is no risk of serious accidents such as hanging on one side or the anode 3 falling off. Also,
When the anode is further transferred from the stripping machine to the transfer machine and water tank conveyor, the anode center line CL-C.
Center line TL- of L., transfer machine and water tank conveyor 19
Since it matches the TL, the anode will not become lopsided and get caught in the transfer machine or water tank.

The anode 3 is then removed from the mold 4 by the peeling hooks 17, 17, and is continuously and accurately transferred to a transfer machine or water tank conveyor 19 in a suspended state. Since each mold 4 is positioned relative to the turntable 1 by the center piece 7 on the turntable 1, the mold 4 does not shift or float relative to the turntable 1, and the mold 4 This makes positioning extremely easy when replacing and installing.

The mold 4 is a so-called tomo mold, and is made by casting refined blister copper into a cast iron mother mold B. As shown in FIG. 11, the upper mold C of the mother mold B has protrusions D, By providing D, positioning recessed holes 5 and 6 can be formed in the front and rear parts of the bottom surface of the mold 4. Furthermore, the present invention is not limited to this, and positioning recesses may be directly bored in the front and back positions of the bottom surface of a mold formed by a master mold having no protrusions D, D.

Further, protrusions may be provided in place of the positioning concave holes 5 and 6 of the mold 4, and a concave hole into which the protrusions are fitted may be provided in place of the center piece 7. Furthermore, the recessed holes 5 and 6 can be provided not only at the front and back positions of the mold 4 below the center line CL-CL of the anode 3, but also at any arbitrary position below the center line CL-CL, and the center piece 7 can be provided in alignment therewith. good.

As explained above, according to this invention, when the anode is lifted from the mold by the stripping machine,
The front and back recessed holes 5 and 6 (or front and rear convexity) are placed below the anode centerline on the bottom of the mold to securely position the mold on the turntable so that the centerline of the anode in the mold and the centerline of the stripping machine match. The push-up rod 8 is provided before and after the through hole 4a through which it is inserted, and at the position corresponding to the front and rear concave holes (or front and rear protrusions) under the stripping machine center line locus of the turntable, the front and rear holes that fit with these are provided. Since the protrusions 7 and 7 (or the front and rear recessed holes) are provided, the center line of the stripping machine and the center line of the anode in the mold are always aligned, making it possible to accurately lift the anode without stripping mistakes. Therefore, the casting system can be operated smoothly and the casting work efficiency can be improved.

The mold and turntable are the push-up rod 8.
The push-up rods are also positioned relative to each other by
Since the head comes into contact with the molten metal, heat shrinkage and wear and tear occur, and since a certain amount of space is required between the push-up rod and the through-hole, the positioning accuracy is poor. The front and rear concave holes and front and rear protrusions for positioning are formed on the bottom of the mold and do not come into contact with the molten metal, and there is no need to provide any gaps between them, so the positioning accuracy is greatly improved. improve.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an anode casting machine according to the present invention, FIG. 2 is a plan view showing a mold on a turntable, FIG. 3 is an enlarged plan view of the mold and anode, and FIG. 3 is a sectional view of the mold taken along the - line, FIG. 5 is a front view showing the positioning recessed hole of the mold and the center piece, FIG. 6 is a side sectional view showing the positioning recessed hole and the center piece, and FIG. teeth,
8 is a front view of the stripping machine, FIG. 9 is a side view of the stripping machine, and FIG. 10 is an operation explanation showing stripping of the anode. 11 are cross-sectional views showing the mother mold of the mold. 1... Turntable, 2... Base bar, 3
... Anode, 3a, 3a ... Ear part, 4 ... Mold, 5, 6 ... Positioning recessed hole, 7 ... Center piece as a protrusion, 11 ... Stripping machine, 17 ... Stripping hook, 18... Water tank, CL-CL... Center line of mold and anode, TL-TL... Center line of stripping machine.

Claims (1)

[Scope of claims for utility model registration] (1) A large number of molds 4 installed on a turntable 1
Molten metal is poured into the mold 4 one after another, and when the poured mold 4 reaches the stripping position by the rotation of the turntable 1, a push-up rod is inserted through the through hole 4a provided in the bottom of the mold 4. 8 to push up the anode 3, which is a casting product. At the same time, the anode 3 is lifted by lifting the left and right ears 3a, 3a of the front end of the anode 3 by the stripping machine 11. In an anode casting machine in which the anode 3 is removed from the mold 4 and transported, the center line of the anode in the mold 4 and the center line of the stripping machine are made to match when the anode 3 is lifted from the mold 4 by the stripping machine 11. Front and rear recessed holes 5 and 6 or front and rear protrusions for positioning the mold 4 fixedly on the turntable 1 are provided in front and behind the through hole 4a below the anode center line on the bottom of the mold 4, and An anode casting machine characterized in that front and rear convex holes 7 or front and rear concave holes are provided at front and rear positions corresponding to the front and rear concave holes 5 and 6 or the front and rear convex holes to fit with these concave holes 5 and 6 under the stripping machine centerline trajectory. . (2) The installation positions of the front and rear concave holes 5 and 6 or the front and rear protrusions of the mold 4 should be below the anode center line on the bottom of the mold 4 and near the front and rear ends, and the front and rear concave holes on the turntable 1 should be installed. 7. The anode casting machine according to claim 1, wherein the front and rear concave holes are provided corresponding to the front and rear concave holes 5 and 6 or the front and rear convexities of the mold, respectively.