JPS637409Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an atomizer device used when spraying a mold release agent onto the inner surface of a mold of a die-casting machine.

Generally, the injection direction and injection amount of the atomizer device are set according to the shape of the mold, and when the mold is replaced, the injection direction and the injection amount are readjusted. However, in conventional devices, a large number of atomizer nozzles are held by a complicated holding mechanism consisting of a stand or the like, which makes it difficult to carry out the above-mentioned adjustment work. Furthermore, recently it has become possible to replace the mold itself in a short time, so it is desired to shorten the working time required for nozzle adjustment.

In order to simplify the adjustment work, this invention combines a large number of nozzles into one unit, and when replacing the mold, the nozzle unit that was previously used is replaced with another adjusted nozzle unit.
This makes it possible to eliminate the need for nozzle adjustment work when replacing molds, and it is structured as follows.

That is, the present invention provides a nozzle unit disposed between mutually opposing inner surfaces of a pair of molds,
An atomizer that mixes a mold release agent and air to form a mold release agent spray is attached to the support member above the nozzle unit, and the nozzle unit is provided with a pair of plates facing the inner surfaces of both molds, respectively;
a plurality of nozzles attached to each plate and opening toward the adjacent inner surface; a spray supply hose disposed between both plates and having one end connected to the nozzle; and a manifold to which the other end of the hose is connected. A fixing mechanism is provided for integrally fixing the manifold and both plates, a coupling mechanism is provided for connecting the spray passages of the manifold and the atomizer, and the nozzle unit is detachably fixed to the atomizer by the coupling mechanism. It is characterized by

Next, embodiments will be described with reference to the drawings.

In FIG. 1, which is a schematic front view, 1 and 2 are a fixed mold and a movable mold of a die-casting machine, and when one die-casting process is completed, both molds 1,
2 are separated as shown in the figure, and the nozzle unit 4 of the atomizer device has descended between the two molds 1 and 2 as will be described later. Units 4 are 1 facing each other
A pair of vertical plates 5, 5 are provided, and the peripheral edges of both plates 5, 5 are provided with a plurality of horizontal bolts 3, 3'.
(only a portion of which is shown) and a plate-shaped horizontal member (not shown). As shown in FIG. 1 and FIG. 2, which is a schematic diagram in the direction of the - arrow in FIG. Natsuto 7
(shown only in FIG. 1). The tip of each nozzle 6 is connected to the inner surface 9 of the adjacent mold 1, 2,
10 (in the opposite direction to the other plate 5), and a hose 1 made of plastic or the like is attached to the proximal end.
One end of 1 is connected. The other end of each hose 11 is connected to a release agent outlet on the lower surface of the manifold 12. The manifold 12 is a part located between the upper ends of both plates 5, 5, and is integrated with the plates 5, 5 by the bolts 3, and has two joints 13 (FIG. 2) forming a common inlet. is provided on the upper surface, and the inside thereof is provided with branch passages extending from an inlet in the joint 13 to a number of outlets for connecting the hose 11.

A plurality of short air nozzles 1 are installed on the plates 5, 5.
5 is attached toward the mold inner surface 9, 10,
Each inlet of the nozzle 15 is connected to an air manifold 17 via a hose 16 (indicated by a two-dot chain line). The manifold 17 is a part located between the lower edges of both plates 5, 5 and slightly below, and is integrated with the plates 5, 5 by bolts 3' etc.
As shown in FIG. 2, an upwardly directed joint 18 is provided at one end.

An atomizer 20 is provided above the unit 4. The atomizer 20 is a part fixed to the lower end of the air cylinder 21 (supporting member), and is connected to a pressurized air source and a mold release agent supply source via a pipe (not shown), and mold release from both sources is possible. The mold release agent spray is adapted to be mixed with air to form a mold release agent spray. As shown in FIG. 2, portions 22 forming an outlet passage are fixed to a pair of side surfaces of the atomizer 20, and a joint 23 connected to the joint 13 is provided on the lower surface of each portion 22. The joints 13 and 23 are of a well-known type, and can be easily connected by simply fitting them together.
The entire unit 4 is fixedly supported by the atomizer 20 via the atomizer 3.

When performing die casting, first, in the illustrated state where the unit 4 is located between the two molds 1 and 2, a mold release agent spray formed by the atomizer 20 is applied from the nozzle 6 through the joints 23, 13, the manifold 12, and the hose 11. Spray a certain amount onto the inner surfaces 9 and 10 of the mold. Next, pressurized air from a pressurized air source (not shown) is connected to a hose (not shown), a fitting 18,
It is blown onto the mold inner surfaces 9 and 10 from the air nozzle 15 via the manifold 17 and the hose 16,
The air eliminates uneven spraying of the mold release agent on the inner surfaces 9 and 10. Note that the number of nozzles 6, 15, distribution state, tip position, injection direction, injection amount, etc. are adjusted in advance according to the dimensions and shape of the mold inner surfaces 9, 10. When the above-mentioned spraying is completed, the air cylinder 21 pulls up the atomizer 20 and the unit 4 above the molds 1 and 2, the molds 1 and 2 are joined, and die casting is performed. When die casting is completed, the molds 1 and 2 are separated, the atomizer 20 and unit 4 are lowered by the cylinder 21 to the position shown, and the mold release agent is sprayed again. The same operation is repeated thereafter.

When the product specifications change, the molds 1 and 2 are replaced. At the same time (or before or after) fitting 13 is removed from fitting 23, fitting 18 (FIG. 2) is also removed from the air hose, and unit 4 is removed from atomizer 20 and sent to another storage location or reconditioning site. At the same time, a new unit 4 is attached to the atomizer 20. Since the injection direction, position, etc. of the nozzles 6, 15 of the new unit 4 have been adjusted in advance at a different location for the new molds 1, 2, no detailed adjustment is required when attaching it to the atomizer 20. Further, attachment to the atomizer 20 can be done extremely simply by simply fitting the joints 13 and 18 into the joint 23 or the joint of the air hose.

As explained above, in the present invention, the plate 5 to which a plurality of nozzles 6 are attached and the manifold 12 connected to the nozzles 6 via the hose 11 are made into a unit by a fixing mechanism such as the bolt 3, and the support member (air cylinder The nozzle unit 4 is detachably attached to the atomizer 20 attached to the atomizer 21). Therefore, when replacing the mold, the next spray operation can be started simply by replacing the previously used unit 4 with the unit 4 whose nozzle position has been adjusted in advance. By eliminating adjustment work such as this, the entire mold replacement work can be simplified and shortened.

Further, the atomizer 20 is an expensive device because it is a device for mixing a mold release agent and air to form a mold release agent spray. On the other hand, nozzle unit 4
is inexpensive because its basic role is simply to spray the spray formed by the atomizer 20. In the present invention, there is no need to replace the atomizer 20 when replacing the mold, and it is sufficient to prepare one atomizer 20 and a plurality of inexpensive units 4 to configure the atomizer system. Therefore, the cost of the system is low.

Further, in the present invention, since the manifold 12 is provided in the nozzle unit 4, the work of connecting the spray passage when replacing the nozzle unit can be greatly simplified compared to the case where each hose 11 is connected to the atomizer 20 individually. Therefore, in this respect as well, the entire mold replacement work can be simplified and shortened.

Furthermore, a nozzle 6 is attached to the pair of plates 5, 5 to spray the mold release agent onto the opposing inner surfaces 9, 10 of the mold, so one atomizer 20 can be used to simultaneously spray the two surfaces. It is possible to construct a device capable of processing the above-mentioned method, and it is possible to simplify the structure of the device and improve workability.

Moreover, the nozzle 6 and the inner surface 10 facing the inner surface 9
Since the nozzles 6 facing the
The distance from the nozzle 6 to the inner surfaces 9, 10 of the mold can be easily changed by simply changing the dimensions of the plates 5, 5, etc.) and the distance between the plates 5, 5.

Further, since the hose 11 is disposed between the plates 5, 5, the plate 5 prevents part of the release agent injected from the nozzle 6 from flowing near the hose 11. Therefore, contamination of the hose 11 due to mold release agents and the like is also effectively prevented.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of the embodiment, and FIG. 2 is a schematic view taken along the - arrow in FIG. 1, 2...mold, 3...bolt (fixing mechanism),
4... Nozzle unit, 5... Plate, 6...
Nozzle, 9, 10... mold inner surface, 11... hose, 12... manifold, 13, 23... joint, 20... atomizer, 21... air cylinder (support member).

Claims (1)

[Scope of utility model registration request] a nozzle unit disposed between mutually opposing inner surfaces of a pair of molds; an atomizer for mixing a mold release agent and air to form a mold release agent spray; attached to a support member above the nozzle unit; The nozzle unit includes a pair of plates facing each of the inner surfaces of the molds, a plurality of nozzles attached to each plate and opening toward the adjacent inner surfaces, and a plurality of nozzles arranged between the two plates with one end facing the inner surface of the mold. a spray supply hose that connects to the nozzle;
A manifold to which the other end of the hose connects, a fixing mechanism to integrally fix the manifold and both plates, and a joint mechanism to connect the spray passages of both the manifold and the atomizer, and the joint mechanism allows the nozzle to be connected to the manifold. An atomizer device characterized in that a unit is detachably fixed to an atomizer.