JPS5847555A - Producing device for die cast parts - Google Patents

Abstract

PURPOSE:To improve productivity and the quality of die cast products by using a movable die for the product forming part of die casting dies, and sliding the members for the gate and runners of the dies in specific directions cooperatively with the opening and closing of the dies. CONSTITUTION:After setting is completed by inserting a core 6 to be die cast into a movable die 13, dies 13, 22 are clamped. Molten metal is charged through a charging port 7, and is charged through a gate plate 18 by a plunger 8 into the dies 13, 22, whereby a product 5 is cast. After the casting, the dies are opened and the die 13 is retreated in a direction A. In this time, the plate 18 is guided by an angular pin 19 and is moved in a direction B, by which the product 5 and the plate 18 are shorn and separated. A solenoid valve 16 is operated to act pressurized fluid from a pressure source 17, thereby moving a piston rod 14 forward. The rod 14 passes through the inside of a mandrel 21 and removes the gate and runners stuck on the plate 18 by ejecting the same with a ejecter 15.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical field to which the invention pertains The present invention relates to a mounting device for die-cast parts for producing parts such as rotors for rotating electric machines by a pull-down die-casting method. 2) Prior art and its problems Figure 1 shows an example of a conventional rotor manufacturing device. ! Mold J is a movable plate, 4 is a movable mold fixed to the movable plate 3, 5 is a gold fij, 1 core 6 is inserted into 4, molten metal is poured from pouring port 1, and the molten metal is poured with plunger 1. 9 indicates a product that is molded by press-fitting. 9 is a knockout t4 which is fixed to the insertion plate XO*Iic of the extrusion device 10 and is inserted into the hole of the movable metal [14] to extrude the product 5. The second movable platen 1, on which the molten metal is injected and the product I is formed, operates, and the product 5 is extruded from the movable metal 114), and the product 5 is taken out, and the product 5 shown in FIG. -), the runner portion 11 is separated using a predetermined knife. This method has disadvantages in that the launch portion 11 is cut with a knife after molding, resulting in poor productivity and the possibility of damage or deformation of the product.

(3) Purpose of the Invention The purpose of the invention is to provide an apparatus for manufacturing die-cast parts that can be carried out in conjunction with the forming operation, thereby improving productivity and product quality. (4) Purpose of the Invention Structure The present invention is characterized in that the product forming part of a die-casting mold into which molten metal is press-fitted is a movable mold, and one member corresponding to the launch part is moved in a direction intersecting the pouring path in conjunction with opening and closing of the mold. It has a structure that slides, and is characterized by the separation of the launch part and the tip of the product using the mold opening.
(5) Embodiment of the Invention In FIGS. 3 and 4, horizontal portions of an embodiment of the present invention are denoted by the same reference numerals, and detailed explanation thereof will be omitted.

This is an extrusion device fixed to the
! The tooth 11 at the tip of the piston rod 14 is integrated into the empty space of the movable mold 13. The extrusion device 12 is a solenoid valve I.
018 is shown in Fig. 5(a) to apply pressure fluid from the pressure source 11 by C to move the piston port i'J4 back and forth.
= (1+), (@) is formed as shown in detail, and moves in the drawing direction together with the movable platen 1 when the mold is opened and closed.
Guide monkey. 20 is guided by Anze crystal pin 19 and operates? -) The opening that fixes the position of plate 18 when closing the mold, King Pro, has some quirks. 21 is a mandrel for fixing the core C; in this case, it is hollow; 2j is a fixing mold in this case, which is similar to the above-mentioned "Angi-to-Uru Bin III";
The fixed plate IK is inclined in one direction as shown in the figure and is protrudingly provided, and penetrates the fixed mold 22.

Next, the operation in such a configuration will be explained.

After inserting the die-cast core C into the movable mold IS and completing the soldering process, the molds 13 and 22 are clamped. Next, pour the molten metal through the pouring port 1, and use the plunger 8 to operate the die-casting machine.
．． The product 5 is molded by injecting it into the mold 22 through the r-doped plate 18. After molding, the mold is opened as shown in FIG. 3, and the movable mold 11 is moved back in the direction shown in the drawing. At this time, the plate 18 is guided by the unimrabin 19 and moved in the direction B shown in the drawing, forming the product 5 and ff'. -) The plate 18 is sheared and separated. Then, the solenoid valve 16 is actuated, and the pressure fluid from the pressure source 11 acts to move the piston rod 14 forward. The r-t and launch portions adhering to the r,-) plate 1-8 are pushed out with a pad 15 and removed.

Note that a part 111 of the movable mold 13 (a part conventionally included in the fixed side) stops at a position where it is not completely opened as shown in FIG. 3, and separates from the movable mold body part fjb. Repeat this operation.In this way, the extrusion device can automatically take out the product molded during the production of die-cast parts such as the rotor, the launch part' It is possible to maintain a constant quality of the product without deforming the product or causing scratches, and it also improves the natural voice quality by 0%. For example, r
-r- from the plate 18), the launch portion need not necessarily be removed in conjunction with the mold removal (it may be performed by hand or other post-work).

(i) What is the effect of the invention? -'), the separation from the launch part is performed by moving the molding operation, thereby improving productivity and product quality.

FIG. 1 is a cross-sectional view showing the configuration of an example of a conventional rotor manufacturing apparatus, FIG. 2 is a view showing the relationship between the product, dirt, and launch part on the same side, and FIGS. 3 and 4 are views of the present invention. A front view and a sectional view, respectively, for explaining the configuration and operation of one embodiment, and FIGS. -) A front view, a sectional view, and a side view, respectively, showing the plate.

6...Core, 1...Pouring port, 8...Plunger,
12--Extrusion lid, I J--Movable mold, 14--
・Piston rod, J j-...Metal, 16...Solenoid valve, 18...r-) Grate, 1#...An 4p&
Lapin rod 20... Mouth wΦ da block, 21... Mandrel, 22... Fixed mold.
- Applicant's agent Patent attorney Suzu Etakehiko Figure 3 Figure 1 (! Figure 5 (C) ))

Claims (1)

[Scope of Claims] (R- of the die-casting mold where the OH product forming part into which the molten metal is press-fitted is a movable mold), and the member corresponding to the launch part intersects with the pouring path in conjunction with opening and closing of the mold. It has a structure that slides in the direction, and the distance between the dart, the launch part and the tip of the item is -
A manufacturing device for die-casting parts, which is characterized by using a roof opening.
(2) In the die-casting parts manufacturing apparatus according to claim 1, the sliding member is inclined with respect to the mold opening/closing direction and engaged with the locking ring protruding from the fixed @. A device for manufacturing die-cast parts, characterized in that a scissor member is linked to opening and closing of a mold. (3) In the die-cast parts manufacturing apparatus according to claim 1 or @2, a of extruding the movable part;
An apparatus for manufacturing die-cast parts, characterized in that it is equipped with an extrusion apparatus having f.