JPS60127062A - Die casting method - Google Patents

Abstract

PURPOSE:To reduce the wasteful time between respective operations and to speed up a casting cycle in a die casting operation by starting the operations of a casting machine and attachments thereof before the previous operation ends. CONSTITUTION:A die casting machine as well as attachments such as an automatic pouring device for pouring a molten metal into a sleeve, an automatic take-out device for taking out products from dies, an automatic spraying device for dies, an automatic inserting device for loading insert metals into dies, etc. are operated cooperatively with each other in the case of making a casting operation with a die casting device. The operation of the product take-out device is started before the dies are fully opened upon starting of the die opening operation of, for example, the die casting machine and the chuck part of the product taking-out device is brought into the state ready to clamp the product when the dies are fully opened in this case. The wasteful time between the operations is thus reduced and the casting cycle is speeded up.

Description

[Detailed description of the invention] The present invention relates to improvements in the die casting process.

Casting using die-casting machines has been automated with the aim of improving productivity through labor savings and improving and maintaining product quality by eliminating human variables, and has completely automated everything from hot water supply to product removal to spraying to trimming to product arrangement. The system is being put into practical use. On the other hand, although these automation devices (auxiliary devices) have significantly improved the labor-saving effect, there is not much interest in the linkage of each operation of the die-casting machine and its attached devices, and it is only vaguely understood that they are based on misoto switches and relays. Since they are connected by sequence control, there is a large amount of time lost between each operation, which causes the casting cycle to take longer. That is, in the conventional die-casting method, when one operation is completely completed, the next operation is gradually started. For example, looking at the product removal process, after the mold opening operation of the die-casting machine is completely completed, the product removal device starts operating next and performs the product removal work, so the mold opening operation and the product This increases the time loss between the take-out operation and lengthens the casting cycle.

In view of the drawbacks of the conventional die-casting method, the present invention improves each operation of the die-casting machine and its auxiliary equipment by starting the next operation before the previous operation is completely finished. It is an object of the present invention to provide a die casting method that can significantly eliminate the time loss between operations and improve the casting cycle.

The accessory devices referred to in the present invention include an automatic water supply device that supplies molten metal into the injection sleeve, an automatic take-out device that takes out the product from the mold, an automatic spray device that sprays the mold, and an insert metal fitting in the mold. This refers to an automatic insert device for loading, etc., and these accessory devices perform predetermined operations in conjunction with each operation of the die-casting machine for each casting cycle.

Thus, in each operation of the die-casting machine and its auxiliary equipment, the next operation is started before the previous operation is completely completed. That is, for example, to explain the operation in the product removal process, the mold opening operation of the die-casting machine starts, and shortly before the mold is almost completely opened, the product removal device starts operating, and the product removal device is started to operate until the mold is completely opened. When the mold is opened, the chuck section of the product ejecting device moves to a state where it is about to grasp the product.

In the present invention, in each operation of the die-casting machine and its attached devices, the next operation is started before the previous operation is completely finished, so that the die-casting machine or its attached devices create a buffer with each other. By allowing each operation to proceed simultaneously to the extent that they do not occur, the time loss between each operation can be greatly reduced, and the casting cycle can be improved.

Therefore, the intended purpose can be achieved.

Patent applicant: Fuso Light Alloy Co., Ltd.

Claims (1)

[Claims] A die-casting method characterized in that in each operation of the die-casting tM and its attached equipment, the next operation is started before the previous operation is completely completed.