JPS635802Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a spray device that blows away dust adhering to the mold of a die-casting machine and also blows off excess mold release liquid sprayed onto the mold.

After taking out the product as the movable mold retreats, the mold of the die-casting machine is first sprayed with air to blow off any dust that has adhered to it, then a mold release liquid is sprayed on the mold surface, and then air is further sprayed. Blow out excess liquid.

Conventionally, in the above spray device, a large number of air and liquid nozzles were attached to a large number of rods arranged in parallel with the upper end supported by an arm, which resulted in a large number of hoses being connected to each nozzle. There were flaws.

Another disadvantage was that it took time and effort to change the direction of the nozzle when changing the mold.

Furthermore, since each liquid nozzle is equipped with a valve that stops the supply of liquid, the nozzle becomes large and the number of nozzles that can be installed is limited.

For this reason, there was a drawback that liquid could not be sprayed to many locations.

This invention aims to eliminate the above-mentioned drawbacks by increasing the number of nozzles and making it possible to change the orientation of the nozzles very easily.

This idea forms an air supply pipe with a large number of stacked rings whose end faces are abutted in an airtight manner, and a nozzle that blows air into the required ring of one air supply pipe is connected to the required ring of the other air supply pipe. A through hole is provided at a predetermined position on the circumference of the pipe, which is equipped with a nozzle that sprays liquid by supplying air, and the direction of the nozzle can be freely changed by rotating the ring. and a nozzle are connected through a hose, and a slide valve in the pipe shuts off the liquid supply from the through hole.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

In the figure, reference numeral 1 denotes a moving base, and the moving base 1 is provided with air inflow passages 2 and 3 and a mold release liquid inflow passage 4.

In addition, the above-mentioned moving base 1 includes a passage 2,
3 are attached to air pipes 5 and 6 whose upper ends are in communication and whose lower ends are closed, and a liquid pipe 7 whose upper ends are communicated with the passage 4 and whose lower ends are closed.

The above air pipes 5 and 6 are shown in FIGS. 3 and 4.
As shown in the figure, a large number of rings 9 are stacked with their end faces abutting each other in an airtight manner through packing 8,
an end plate 10 that airtightly closes the lower edge opening of the lowest ring 9; a rod 11 whose upper end is fixed to the base 1 by screwing or the like, and which is fitted into the ring 9 so as to form a passage gap; It consists of a threaded shaft 12 that extends from the lower end of the rod 11 and passes through the end plate 10 in an airtight manner, and a tightening nut 13 that is screwed into the threaded shaft 12.

In addition, the required rings 9 of both air pipes 5 and 6 are
Through holes 14 and 15 are provided through which the inner peripheral surface and the outer peripheral surface communicate with each other, and the through hole 14 is provided with a nozzle 16 for blowing air, and the through hole 15 is provided with a nozzle 16 for blowing air and liquid. Nozzles 17 are attached to each.

Note that air is supplied to the air pipes 5 and 6 only when the valves are open.

Furthermore, a rideable shaft member 18 (shown in FIG. 5) whose outer peripheral surface is brought into close contact with the inner peripheral surface of the liquid pipe 7 is inserted between both ends of the liquid pipe 7, and the shaft member 18 is Pistons 19, 20 at both ends
and ports 21 and 22 (shown in FIG. 5) for press-fitting air into the upper and lower ends of the liquid pipe 7 are provided, air is press-fitted into the port 21 to lower the shaft member 18, and air is press-fitted into the port 22. and shaft material 18
It is starting to increase.

Further, a passage 23 (shown in FIG. 5) is provided between the inside of the lower end portion of the shaft member 18 and the outer circumferential surface of the upper end portion, and
The annular groove 24 provided at equal intervals on the outer peripheral surface between both ends of the shaft member 18 and the passage 23 are communicated through a through hole 25 (each shown in FIG. 5), and the liquid pipe 7
An inlet 26 for mold release liquid is provided at the upper end that matches the passage 23 when the shaft member 18 is lowered, and furthermore, when the shaft member 18 is lowered between the upper and lower ends of the liquid pipe 7, each annular groove 24 and The ends of the hoses 27 are connected so as to communicate with each other, and the ends of the hoses 27 are connected in front of the ejection holes of the nozzles 17 so as to communicate with each other.

In addition, as shown in FIG. 1, the air pipes 5 and 6 and the liquid pipe 7 are attached to the plate 31,
By setting the plate 31 on the base 1 so that the passages 2, 3, and 4 are electrically connected when fitted, the time required to set up the spray device can be shortened.

Further, in the illustrated case, pairs of air pipes 5 and 6 are arranged on both sides of the central liquid pipe 7, but the air pipes 5 and 6 may be arranged on one side of the liquid pipe 7.

In the figure, 28 is a release liquid supply hose connected to the inlet 26, 29 and 30 are air press-in hoses connected to ports 21 and 22, 31 is an annular step provided at the lower edge of the ring 9, and 32 is an annular protrusion provided on the upper edge of the ring 9 and fitted into the stepped portion.

The spray device according to this invention has the above-mentioned configuration, and the following describes how to use it: After retracting the movable mold and taking out the molded product, there is a gap between the movable mold and the fixed mold. The piston shaft 33 is lowered to allow the spray device to enter.

Next, when air is supplied from the passage 2 to the air pipe 5 for a set period of time, air is blown from the gap between the ring 9 and the rod 11 through the through hole 14 and from the nozzle 16 onto the mold, thereby removing attached dust. do.

After the air blowing from the nozzle 16 is completed, air is press-fitted into the port 21 and the shaft member 18 is lowered, so that the end of the passage 23 and the inflow hole 26 are
Moreover, each hose 27 and the annular groove 24 match.

For this reason, the mold release liquid from the inflow hole 26 passes through the passage 23, the through hole 25, the annular groove 24, and the hose 27 that corresponds to the annular groove 24 to each nozzle 17.

After that, when air is supplied from the passage 3 to the air pipe 6 for a set time, this air flows into the ring 9.
Since the liquid flows from the gap between the mold and the rod 11 through the through hole 15 toward the nozzle 17, the liquid is sprayed onto the mold surface as the air is jetted.

When spraying the liquid, air is forced into the port 22 to raise the shaft member 18, so the inflow hole 26 is closed by the circumferential surface of the shaft member 18, and the passage 22 is closed.
3 is stopped, and the inlet of each hose 27 is closed by the circumferential surface of the shaft member 18.

At this time, the air supply continues, so
Only air is blown from the nozzle 17.

Therefore, excess liquid adhering to the mold is blown off.

Next, when changing the spray direction of the nozzles 17, 16, first loosen the nut 13, and then rotate the ring 9 having the nozzles 16, 17, thereby easily changing the direction of the nozzles 16, 17. I can do it.

Then, tighten the nut 13.

Also, when increasing or decreasing the number of nozzles 16 and 17,
The end plate 10 may be removed together with the nut 13, and the ring with a nozzle may be replaced with a ring without a nozzle, or the number of rings without a nozzle may be increased.

As described above, according to the spray device of this invention, the nozzles are provided in the stacked rings, and the rotation of the rings is stopped by tightening the nut, so the rings can be rotated by loosening the nut. be able to.

Therefore, the direction of the nozzle (spraying direction) can be adjusted extremely easily and quickly.

Furthermore, when the shaft material is slid in one direction, the passage and the inflow hole match, and the inflow port of each hose and the annular groove match, so that the mold release liquid flows from the inflow hole.
When the shaft member is slid in the other direction toward the hose through the inflow hole, passage, through hole, and annular groove, the inflow hole is closed by the circumferential surface of the shaft material, and the inflow hole of the hose and the annular groove are mismatched. Therefore, the mold release liquid can be supplied and stopped instantly by simply sliding the shaft member.

Furthermore, as air continues to be supplied, air is blown from the same nozzle immediately after the mold release liquid supply is stopped, so that excess liquid adhering to the mold can be blown off.

Furthermore, since the shaft material acts as a valve, there is no need to incorporate a valve in each nozzle.

Therefore, the nozzle can be made significantly smaller.

Furthermore, since the liquid and air are sprayed from the nozzle, the number of nozzles and pipes can be reduced, making it possible to make the device more compact.

[Brief description of the drawings]

Fig. 1 is a partially cutaway front view of the device according to this invention, Fig. 2 is an exploded perspective view of the ring, Figs. 3 and 4 are enlarged partially cutaway side views showing the nozzle, and Fig. 5 is the liquid pipe. FIG. 1... Base, 2... Passage, 3... Passage, 4...
... Passage, 5, 6 ... Air pipe, 7 ... Liquid pipe, 8 ... Packing, 9 ... Ring, 10 ...
...End plate, 11...Rod, 12...Screw shaft, 13
...Natsuto, 14...Through hole, 15...Through hole, 16
... Nozzle, 17 ... Nozzle, 18 ... Shaft material, 1
9, 20... Piston, 21, 22... Port,
23... passage, 24... annular groove, 25... through hole,
26...Inflow hole, 27...Hose.

Claims (1)

[Scope of utility model registration request] a base; a liquid pipe with its upper end supported by the base; a shaft member built into the liquid pipe with its peripheral surface in close contact with each other so as to be raised and lowered by air press-fitted into ports at both ends of the liquid pipe; A passage provided from the outer peripheral surface of one end of the shaft member toward the inside of the other end, an annular groove provided at equal intervals on the outer peripheral surface of the shaft member so as to communicate with this passage via a through hole, and a shaft extending in one direction. a mold release liquid supply inlet provided on the liquid pipe so as to communicate with the passage when the material is slid; a hose attached to the liquid pipe so as to communicate with the annular groove when the shaft material is slid in one direction; An air pipe consisting of a first air passage and a second air passage provided in the base, rings stacked in a required number of stages with their end faces abutting each other in an airtight manner, and an end plate that closes the bottom surface of the lowest ring; A nut was screwed into the screw shaft at the lower end that passed through the center of the plate, and the uppermost ring was connected to the first and second passages, and the upper end was fixed to the base and passed through the air pipe in a loose fit. A rod, an air blowing nozzle attached to a predetermined ring on the first passage side in communication with the inner peripheral surface of the ring, and a hose tip connected to the air passage at the tip, and a ring attached to a predetermined ring on the second passage side. A spray device consisting of a liquid spray nozzle connected in communication with the inner peripheral surface of the spray device.