JP2933253B2 - Product removal device for die castings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for separating a cast product into a product portion and a gate portion by a trimming mold and extracting only the product portion.

[0002]

2. Description of the Related Art Conventionally, when a product such as cast iron is cast by a mold casting method, removal of a cast product after pouring and separation of the product from a gate or a weir have been performed manually. Is a dangerous operation under high temperature, so labor saving and unmanned equipment are being developed. However, with the shortening of the casting cycle, products are often extruded and dropped from a mold at a high temperature and are taken out, which causes problems such as deformation of the product and scratches on the product surface. . For this reason, an as-cast product with a sprue is taken out of a mold, transferred to the upper part of a trimming mold, and a device for separating the sprue and the weir from the product by a trimming press has been developed and known. In the case of this device, the product or weir after separation has slipped into the operating portion of the separation and take-out device, causing a malfunction. The present invention has been made in view of the above problems, and has a shortened casting cycle, does not damage the product or damage the product surface even when the product is taken out at a high temperature, and furthermore, the product after separation. Another object of the present invention is to provide an apparatus for taking out a product of a die-cast product in which a weir is prevented from entering into an operating portion of the separation / extraction apparatus.

[0003]

Means for Solving the Problems To achieve the above object, a product take-out apparatus for die casting according to the present invention comprises: a table having a hole formed therein for allowing a product to drop; Of a die casting product comprising a trimming die having a lower surface fixed to the upper surface of the die and a hole having a plane shape similar to the flat surface of the product, and a press plate capable of moving up and down above the trimming die. In a take-out device, an elevating plate having a lower surface connected to a cylinder below a hole formed in the table, and a tubular support fixed to the upper surface of the elevating plate and having a hollow portion penetrating vertically. In the hollow portion of the cylindrical support, the plane shape is made similar to the hollow portion of the cylindrical support, and the hollow portion is inserted through a push-up rod inserted through the elevating plate. Having a fixed shutter supported. It is an butterfly.

[0004]

By adopting the above-mentioned solution,
When the product separated by the trimming mold from the sprue and weir is dropped on the stow provided directly below the trimming mold, the product is separated by feeding the cylindrical support to the lower surface of the table to which the trimming mold is fixed. After placing the finished product on the tubular support without shock, the product is lowered together with the tubular support and sent to the shout via the delivery means.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. In FIGS. 1 and 2, a trimming mold 7 in which two sets of four-piece products 8 relating to an L-shaped pipe joint are placed integrally with a gate and a weir 8 </ b> A has a hole having a planar shape similar to the plane of the product 8. 7A is drilled, the gate and the weir 8A are placed in contact with the upper surface of the trimming die 7, and the product 8 is partially placed in a hole 7A drilled in the trimming die 7. Above the trimming mold 7, a press mold 9 which can move up and down is provided, and on the lower surface of the trimming mold 7, a table 6 having a hole 6A sufficient for dropping a product 8 and the table 6 are provided. A cylindrical support 3 introduced below the table is provided, and the cylindrical support 3 is connected to the cylinder 1 via a lifting plate 2. The hollow part 3A penetrating the cylindrical support 3 vertically has a similar planar shape to the hollow part 3A of the cylindrical support 3 and the elevating plate 2 penetrates the hollow part 3A. Shutter 5 supported via push rod 4 inserted
The push-up bar 4 is provided with a bolt and nut 4 on the base.
The height is adjustable by A and fixedly supported. The upper surface of the fixed shutter 5 is adjusted to be at the same level as the upper surface of the cylindrical support 3 when the cylindrical support 3 is at the lower end.

[0006] In the above-mentioned structure, after the gate and the weir 8A and the product 8 are integrally placed on the trimming mold 7, the cylindrical support 3 is moved by the cylinder 1 via the elevating plate 2. It rises to the position shown by the dotted line, and the lower end of the product 8 is located just above the rising end. Here, the trimming mold 7
The gate and the weir 8A are integrally pressed by the press plate 9 which is located at the upper part and which can move up and down, and the weir is folded. At this time, the gate and the weir 8A are pushed by the press plate 9 and the gate and the weir 8A are placed in contact with the upper surface of the trimming mold 7, so that the product remains on the upper surface of the trimming mold 7 by pressing and the product 8 is punched in the trimming mold 7. The product 8 is separated from the gate and the weir 8A through the hole 7A.
The product 8 separated through a hole of a mold having a plane shape similar to the product plane falls on the cylindrical support 3 raised from below. Thereafter, as shown in FIG. 3, the cylindrical support 3 is lowered by the cylinder 1 via the elevating plate 2, and the lower end thereof is at the same height as the upper end of the fixed shutter 5 and the upper end of the cylindrical support 3. Ascend until it becomes. Further, the product is gently extruded by a scraper (not shown) into the lower shoe. The above operations are continuously performed.

[0007]

As is apparent from the above description, according to the present invention, when a product separated from a gate and a weir by a trimming mold is dropped on a stow provided immediately below the trimming mold, the trimming mold is fixed. After the lower end of the product is located just above the rising end of the cylindrical support by feeding the cylindrical support to the lower surface of the table, the separated product is placed on the cylindrical support without shock. Since the cylindrical support and the product are sent to the shout after being lowered, the product flows smoothly, the casting cycle is shortened, and even when the product is taken out at high temperature, the product deforms and reaches the product surface. The problem of scratches is eliminated. Furthermore, since the fixed shutter is provided inside the cylindrical support, the product 8 separated on the cylindrical support rising from below is lowered while being placed on the upper end of the cylindrical support. Since it is gently extruded into the lower part via the feeding means, it can be stuck into the hollow portion of the cylindrical support and malfunction, resulting in no stopping of the entire apparatus. As described above, according to the present invention, good products can be produced smoothly, and the effect on the industry is remarkable.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing an embodiment of the present invention.

FIG. 2 is a view taken in the direction of arrows AA in FIG.

FIG. 3 is a sectional view of a main part showing a state where a product is taken out.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylinder 2 Elevating plate 3 Cylindrical support base 4 Push-up bar 5 Fixed shutter 6 Table 7 Trimming type 8 Product 9 Press plate

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B22D 31/00 B21D 28/00

Claims (1)

(57) [Claims] 1. A table 6 having a hole 6A sufficient for dropping a product 8, a lower surface fixed to an upper surface of the table 6, and a planar shape similar to the plane of the product 8. Hole 7
In a device for taking out a die cast product comprising a trimming mold 7 having a hole A and a press plate 9 capable of moving up and down above the trimming mold 7, a hole 6A formed in the table 6 is formed. An elevating plate 2 having a lower surface connected to the cylinder 1 at a lower side, a cylindrical support 3 having a hollow portion 3A fixed to the upper surface of the elevating plate 2 and vertically penetrating; The hollow portion 3A has a planar shape similar to that of the hollow portion 3A of the cylindrical support 3 and is supported by the hollow portion 3A via a push-up rod 4 inserted through the elevating plate 2. A product take-out device for a die casting, comprising: a fixed shutter (5).