JPS61119365A - Device for supplying parting agent for die casting machine - Google Patents

Abstract

PURPOSE:To improve the quality of a product and to reduce cost by mounting parting agent nozzle groups via fingertouch couplers to at least one of movable and stationary platens in the stage of opening dies. CONSTITUTION:A parting agent supply device 6 is fixed to the prescribed positions of the opposed surfaces 1a, 2a of the stationary platen 1 and the movable platen 2. the device 6 is constituted of a base block 8 to be fixed to each platen, an atomizer 9, a fingertouch coupler 18, a parting agent nozzle set 10 and an air nozzle set 11. the nozzle sets 10, 11 are mounted to the atomizer 9 by the coupler 18 when the dies 4, 5 are opened by such mechanism. The parting agent is at the same time sprayed to the inside surfaces of the dies 4, 5 by the pressurized air supplied from the nozzle 13. The quality of the product is thus improved and the operating efficiency of the machine is improved, by which the cost is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for supplying a mold release agent to the inner surface of a mold of a die-casting machine.

(Prior art) Conventionally, in order to supply a mold release agent to the inner surface of a mold of a die-casting machine, a group of mold release agent nozzles (an atomizer in a nozzle holder) are inserted between the molds using a hydraulic cylinder or an air cylinder when the mold is opened. ) from the nozzle group! ! ! There are known methods in which the mold release agent is supplied and then retracted upward, and a fixed method in which the mold release agent is supplied from a nozzle group fixed to a movable platen, a fixed platen, or another frame. However, in either case, each time the mold is changed, it is necessary to move closer to the mold and adjust the nozzle direction, spray distance, etc., which takes a long time (for example, 1 hour) and reduces operating efficiency. was there.

(Objective of the Invention) The present invention utilizes the fact that the mold is fixed at a predetermined position on a movable plate or a fixed plate, and makes it possible to attach and detach the LLI mold agent nozzle group to the movable plate, fixed plate, etc. in one-touch manner. It is an object.

(Structure of the Invention) The present invention is characterized in that a group of mold release agent nozzles that face the inner surface of the mold when the mold is opened is attached to at least one of the movable plate and the fixed plate, each having a mold, via a one-touch cover. This is a release agent supply device for a die casting machine.

(Example) In FIG. 1 showing a plan view of the main parts of a die-casting machine to which the present invention is applied, 1 is a fixed platen (fixed platen), and 2 is a movable platen (movable platen). Possible! 11511u2 is guided by tie bars (center line 3) and can approach the stationary platen 1 side or retreat from the stationary platen 1 to the illustrated position (mold opening position) by a mold clamping ram (not shown). Molds 4.5 are fixed at predetermined positions on opposing surfaces 1a and 2a of the fixed platen 1 and the movable platen 2, respectively, and mold release agent supply devices 6 according to the present invention are fixed on both sides of the mold 4, respectively. ing. One mold release agent supply device 6 having the same structure is also fixed on each side surface 2a of the mold 5. Each mold release agent supply device 6 includes a base block 8 fixed to a platen, an atomizer permanently fixed to the base block 8, and a mold release agent nozzle that can be attached to and detached from the atomizer 9 via a one-touch cover 18, which will be described later. Set (complex) 101 Air nozzle set (complex) 11 is installed, and both nozzle sets 1
The 0.11 nozzles 12.13 are directed towards the inner surface of the mating mold 5 (or mold 4). A mold release agent supply pipe 14 and an air supply pipe 15 each having a solenoid valve (not shown) are connected to the atomizer 9.

FIG. 2 is a side view in the direction of the ■ arrow in FIG. 1, and FIG. 3 is a front view in the direction of the ■ arrow in FIG. be. Similarly, a large number of mold release agent nozzles 12 are attached to the mold release agent nozzle set 10 at intervals vertically. The plug 16 at the end of each nozzle set is the socket 17 on the atomizer 9 side.
The clamp 36 is rotated in the direction of the arrow from the illustrated open state to the rectangular pedestal 20a at the tip of the pipe 20 so that each nozzle faces a predetermined direction. The fitting angle between the plug 16 and the socket 17 is determined.

FIG. 4 shows a longitudinal section of the mold release agent nozzle set 10. A pipe 20 is fixed concentrically to the joint 19 into which the plug 16 is screwed, and the side surface of the pipe 20 is provided at equal intervals in the vertical direction. A large number of nozzle holders 21 (having needle valves 37 for liquid) are fixed across the nozzle holders 21, and nozzles 22 made of copper pipes are screwed into the nozzle holders 21.

Mold release agent nozzles 23 are arranged concentrically within the holder 21 , and each nozzle 23 is fixed to a pipe 24 at the center of the pipe 20 and communicates with a mold release agent passage 25 within the vibrator 24 .

The annular cross-section passage 26 between the pipes 20, 24 is a passage for pressurized air.

The atomizer 9 in FIG. 5 is equipped with a socket 17 for connecting the release agent nozzle set 10 (FIG. 4) and a socket 17a for connecting the air nozzle set. The discharge port 27 is connected to a release agent passage 28 in the main body of the atomizer 9, and the space between the socket 17 and the liquid discharge port 27 is connected to an air passage 29.

The used socket 17a is connected only to the air passage in the atomizer 9, and a flow rate regulating valve is appropriately installed in each of the mold release agent and air passages. The air nozzle set connected to the socket 17a is separated by 1 inch from the agent nozzle set 10 as shown in FIG.
This is a structure with the pipe 24 removed.

FIG. 6 is a sectional view showing an example of a conventionally known one-touch type plug suitable for use in the present invention, in which the plug 16 is inserted into the socket 17, the ball 31 prevents handling, and the O-ring 32 ensures liquid tightness. It is designed to be secured. To remove the plug 16 from the socket 17, pull the sleeve 34 to the right in the figure against the elasticity of the spring 33, and then remove the plug 16 from the socket 17.
7 and pull the plug 16 to the left. When inserting the plug 16, the above operation is reversed.

In the present invention, the mold release agent nozzle set 10 and the air nozzle set 11 fixed to the platen (fixed platen 1 or movable platen 2) are arranged in advance using Gold IX! The direction of each nozzle 12.13 is determined to match the inner surface shape of 4.5, and since such a nozzle set 10.11 is attached to the atomizer 9 via the one-touch cover 18, When the mold 4.5 is opened as shown in Fig. 1, a predetermined amount of mold release agent spray is supplied from the nozzle 12 to the mold 4.5, and at the same time only pressurized air is supplied from the nozzle 13 to release the mold release agent. Spread it on the inner surface of the mold or remove excess mold release agent.

It is also possible to supply only pressurized air before spraying the mold release agent to remove dust from the inner surface of the mold and then spray the mold release agent.

When replacing mold 4.5 with a mold of a different structure (new mold), at the same time as replacing the mold, install the release agent nozzle set 1° and air, which are pre-adjusted to correspond to the new mold. The nozzle set 11 is attached to the atomizer 9 at the corresponding position in a one-touch manner.

(Effects of the Invention) As described above, the present invention includes a mold release agent nozzle 12 that faces the inner surface of the mold when the mold is opened, on at least one of the movable platen 2 and the fixed platen 1, each having a mold 5.4. Since it is installed via the one-touch type cover 18, the new mold can be fixed when replacing the mold! 2! 1. Movable! 2. At the same time, pre-direction and discharge to fit the new mold! W etc. in advance! Furthermore, the mold release agent nozzle set 10 and the air nozzle set 11 can be attached in a one-touch manner (at 11 o'clock), making it extremely easy to fit the mold release agent supply device to the mold. Since no skill is required to attach and detach the nozzle set, each nozzle is accurately set in a predetermined direction, improving the quality of die-cast products. In addition, the operating efficiency of the die-casting machine is improved, which reduces the cost of the product.

(Another embodiment) It is also possible to attach a nozzle set to only one of the fixed AI and the movable platen 2, and in that case, the direction of each nozzle is such that when the mold is opened, the release agent can be evenly supplied to the opposing mold inner surfaces. Thus, one group of nozzles can be approximately straight, and the other nozzles can be curved approximately in a U-shape. The air nozzle set can be omitted depending on the application. The structure shown in FIG. 7 may be adopted instead of the nozzle holder 21 shown in FIG. 4. 7th
The nozzle 22 in the figure communicates with an air passage 26.

A needle valve 37 is installed in the hole 38 portion communicating with the liquid passage 25.
is installed.

[Brief explanation of the drawing]

Claims (1)

[Claims] A mold release agent for a die casting machine, characterized in that a group of mold release agent nozzles that face the inner surface of the mold when the mold is opened is attached to at least one of a movable plate and a fixed plate each having a mold via a one-touch coupler. Feeding device.