JPS5935338Y2 - automatic casting line - Google Patents

Description

[Detailed description of the invention] The present invention is for circulating a flask that has been broken out by a pattern breaking device, through a molding machine and a pattern matching device, and returned to the pattern breaking device. This relates to an automatic casting line in which there is a cooling section of t=416 molds after the mold is formed and poured into a pottery mold before reaching the mold release device.

Cooling section I/i of the mold It varies depending on the size and shape of the casting product, and some require a short cooling section while others require a long cooling section.

Therefore, when producing both products that require a short cooling time and products that require a long cooling time on one automatic casting line, conventionally, as shown in Fig. 1, Demolding device 1. A flask circulation path 4K in which a molding machine 2 and a frame matching device 3 are respectively installed, and an auxiliary flask transfer path 5 shaped like an inverted U are connected, and the flasks that have been unmolded by the unmolding device 1 are transferred in the direction of arrow A. However, in the case of a structure in which the metal is poured into a mold that is molded in the flask by the molding machine 2 and the frames are aligned by the frame alignment device 3, and a short cooling period is required, the above-mentioned Q after pouring is adopted.
The flask containing the mold is transported along the flask circulation path 4, allowed to cool naturally during the transfer process, and then returned to the mold breaking device 1. On the other hand, in the case of a flask that requires a long cooling period, After the pouring, the flask having the O mold is transferred from the middle of the flask circulation path 4 to the auxiliary flask transfer path 5rc, transferred in the direction of arrow B, and then transferred to the flask circulation path 4 again from the end thereof. ,
In the same manner as described above, the flask is returned to the demolding device 1 and passed through the auxiliary flask transfer path 5 to compensate for the lack of cooling section.

However, with this configuration, when casting something that requires a short cooling period immediately after casting something that requires a long cooling period, the flask on the auxiliary flask transfer path 5 and the flask circulation path 4 In order to avoid collision with the upper flask, the operation of the auxiliary flask transfer path 5 had to be stopped, and therefore there was a problem in which the flasks on the auxiliary flask transfer path 5 remained unformed. .

In such a case, since the stagnant material requires a long cooling period, that is, the roaring heat of the casting 19, the water in the mold O casting sand will evaporate excessively, causing the sand to evaporate excessively. There were problems when reusing or recycling.

In addition, in order to prevent such excessive evaporation of water, it is possible to produce a product that requires only a short cooling period after transferring the upper m flasks of the auxiliary flask transfer path 5 to the soil of the flask circulation path 4, but in this case, However, there is a problem in that the time required for the transfer is wasted and productivity is reduced.

The present invention was developed in view of the above circumstances, and its purpose is to produce products that require a long cooling period and then produce products that only require a short cooling period.
To provide an automatic casting line capable of preventing molds from being unreleased without reducing productivity.

An embodiment of the present invention will be specifically described below with reference to the drawings.

Reference numeral 11 denotes a first flask circulation path consisting of a roller conveyor, etc. installed on the foundation in a rectangular ring shape, with a first mold loosening device 12 on the short side and the second mold on the long side. Breaking device 1
Molding machine 13 in order from 2. The frame matching devices 14 are installed side by side, and a pouring device 15 is installed at a predetermined distance from the frame matching device 14.
is installed.

On the first flask circulation path 11, a large number of flasks consisting of an upper flask and a lower flask are arranged in a row, and the flasks move one pitch at a time for each titration time. Transfer to direction C and molding machine 13. After passing through the frame alignment device 14, the first mold release device 12
The flask is circulated on the No. 1 flask circulation path 11 so as to return to the original temperature.

That is, the empty flask that has been demolded by the first demolding device 12 is separated into an upper flask and a lower flask when it exits the first demolding device 12, and the separated upper flask is separated into an upper flask and a lower flask. The flask and the lower flask are transferred separately to the molding machine 13, where cast iron is poured into the upper flask and the lower flask to mold the upper mold and the lower mold separately, and the upper mold is further provided. The upper flask and the lower flask having the lower mold are separately transferred to the mold matching device 14, where the molds are matched, and the flask with the molds matched in this manner is transferred to the pouring device 15, where the molds are molded. Molten metal is poured into a certain mold from the upper mold and the lower mold, and the pouring flask is further transferred and returned to the first mold breaking device 12. - The period up to the mold breaking device 12 is defined as the mold cooling section.

Reference numeral 16 denotes a second flask circulation path, which is constructed of a roller conveyor or the like and installed on the foundation in line with the -Q flask circulation path 11, and has a rectangular ring shape that is slightly smaller than the first flask circulation path 11.

1T is a second demolding device installed on the short side of the second flask circulation path 16.

On the second flask circulation path 16, a large number of flasks consisting of an upper flask and a lower flask are provided, similar to the first flask circulation path 11, and a second mold release device is installed. 17 is transferred in the direction of the arrow by one pitch at predetermined time intervals to the second mold breaking device 17 in synchronization with the flasks on the Q-th flask circulation path 11. It is circulated to return it.

18 is a flask exchange device installed between the first flask circulation path 11 and the second flask circulation path 16;
and a flask transfer path that coincides with the second flask circulation path 16, and is provided with a flask transfer path 18 on its upper surface C in a counterclockwise direction in FIG.
It consists of a main table that can be rotated horizontally intermittently by 0 degrees.

When the flask exchange device 18 is driven, it exchanges the flasks transferred from the pouring device 15 side on the first flask circulation path 11 and the flasks transferred on the second flask circulation path 16. Second demolding device 1
The flasks transferred from the 7th side are replaced at the same time.

With the above configuration, when producing products that require a long cooling period, the flask that is transferred on the first flask circulation path 11 after being poured with the pouring device 15 is When the flask exchange device 18 reaches a position where it can be transferred, the flask exchange device 18 is driven, and the flasks on the Q-th flask circulation path 11 and the flasks on the second flask circulation path 16 are moved. The flask after pouring is placed on the second = ym flask circulation path 16, and the flask that has been unmolded by the second mold unmolding device 1T is placed on the first flask circulation path 1.
1 respectively.

The flask transferred onto the second flask circulation path 16 is then transferred in the direction of the arrow, and is transferred to the second mold loosening device 1γ.
Once it is transported to the next stage, it is broken down.

When the flask thus separated is transferred to a position where it can be transferred by the flask exchange device 18, it is transferred on the first flask circulation path 11 by the flask exchange device 18 in the same manner as described above. After pouring the metal, it is replaced with a 0 flask.

Then, the flask transferred onto the first flask circulation path 11 is transferred in the direction of the curling arrow C, passes through the first mold loosening device 12, and is transferred toward the molding machine 13.

When producing products that require such a long cooling period, the flasks are transferred from the first flask circulation path 11 to the second flask circulation path 16 to increase the transfer distance. to compensate for the lack of cooling section.

On the other hand, when producing something that requires such a long cooling period and then immediately producing something that requires a short cooling period,
m after pouring with the flask changing device 18 stopped.
A flask with a mold is transferred in a short period of time only through the first flask circulation path 11 to a first demolding device 12, where it is demolded.

At this time, there is still some material on the second flask circulation path 16 that requires a long cooling period, but this can be removed by circulating it on the second flask circulation path 16. The mold is demolded by the device 17.

If such a busy disassembly is performed, only the flasks may be circulated on the second flask circulation path 16, or the circulation operation on the second flask circulation path 16 may be stopped.

In this way, in this embodiment, the auxiliary flask transfer path 5, which is conventionally shaped like an inverted U, is replaced with the 20th flask circulation path 16, which has an annular shape and through which the flasks circulate. Since the second flask circulation path 16VC and the second mold breaking device 17 are provided, the flasks remaining on the 20th flask circulation path 16 are removed from the flasks on the Q-th flask circulation path 11. Regardless of this, the flask can be transferred on the second flask circulation path 16 and demolded by the second demolding device 17.

Therefore, even when producing something that requires a long cooling period and then immediately producing something that only requires a short cooling period, unlike in the past, this eliminates the inconvenience of leaving the flask unmolded in the box. Therefore, problems such as excessive evaporation of water in the fM sand do not occur.

Moreover, as mentioned above, since it is possible to produce products that require a short cooling period immediately after producing products that require a long cooling period, productivity can be improved unlike in the past.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, but can be implemented with appropriate modifications within the scope of the invention.

As explained above, the present invention circulates the casting flask, which has been demolded by the first demolding device, through the molding machine and the mold matching device, and returns it to the first demolding device. - a first flask circulation path whose mold cooling section is between the mold breaking device; a second flask circulation path in which a second mold breaking device is disposed, a mold that is being cooled on the Q-th flask circulation path when driven, and a mold that has been broken out by the second mold breaking device; It is equipped with a flask exchange device that exchanges flasks on the second flask circulation path, and by this, it is possible to produce products that require a long cooling period and then produce products that require a short cooling period. Even in the past, casting flasks were not changed into different shapes without reducing productivity! It is possible to provide an automatic casting line that has the extremely valuable effect of reliably preventing stagnation.

[Brief explanation of drawings]

FIG. 1 is a layout diagram showing a conventional automatic casting line, and FIG. 2 is a layout diagram showing an embodiment of the present invention. In the figure, 11 is the first flask circulation path, 12 is the first mold breaking device, 13 is the molding machine, 14 is the mold matching device, 16 is the second flask circulation path, and 17 is the second mold breaking device. The device 18 indicates a flask exchange device.

Claims (1)

[Scope of utility model registration request] In the olden days, the flask, which had been demolded by the first demolding device, was circulated through the molding machine and the mold matching device and returned to the first demolding device, and after pouring the mold, the flask was returned to the second demolding device. a first flask circulation path between which the mold is cooled, and a second mold breaking device installed outside the cooling zone position of the first flask circulation path at a position midway through the conveyance. When driven, the flasks on the first flask circulation path that are being cooled and the molds on the second flask circulation path that have been demolded by the second demolding device. An automatic casting line comprising a flask exchange device for exchanging flasks.