JPH0763802B2 - Feeder for casting metal filter - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a feeding device for taking out, one by one, metal casting filters that are stacked on top of each other.

[Prior Art] It is known to dispose a wire mesh as a dust removing metal filter between a sprue in a casting mold or a runner and a cavity.

In this case, in order to automate the work of loading the metal wire into the casting mold, it is necessary to arrange a plurality of metal wire at a predetermined supply position. Here, when the metal nets are stacked vertically, the metal nets are entangled with each other and it is difficult to take them out. Therefore, the metal nets are usually arranged one by one on a flat pallet or aligned on a shooter.

[Problems to be Solved by the Invention] However, since the metal nets are arranged one by one as described above, there is a problem in that when a large number of metal meshes are stocked, the space for arranging the metal meshes is considerably expanded. Moreover, it is necessary to move the supply device in correspondence with the position where the wire net is arranged, which results in an increase in size of the supply device.

The present invention is to solve this kind of problem, and a plurality of metal filters can be effectively arranged in a narrow space and can be easily and surely taken out one by one,
An object of the present invention is to provide a feeder for a casting metal filter that can prevent the entire apparatus from increasing in size.

[Means for Solving the Problems] In order to solve the above problems, the present invention is a supply device for supplying cup-shaped metal filters for dust removal mounted on a casting mold one by one. A holding cylinder for stacking and holding a plurality of metal filters with an opening facing upward; an actuator for integrally raising and lowering the metal filters in the holding cylinder; and an upper part of the holding cylinder. A magnet for inducing the same kind of magnetic pole in each metal filter to separate the metal filters from each other in the holding cylinder, and a pneumatic pressure arranged corresponding to the metal filter separated above the magnet via the magnet. And a first air injection nozzle and a first detection nozzle that are arranged to face each other at a central position of the metal filter, and a bias of the metal filter. A second air injection nozzle and a second detection nozzle disposed opposite to the position, and having a.

[Operation] In the above-described casting metal filter supply device according to the present invention, the plurality of metal filters stacked in the holding cylinder are integrally lifted under the action of the actuator, and the holding cylinder It is arranged corresponding to the magnet provided on the upper part. Therefore, magnetic poles of the same kind are induced in the metal filters via the magnets, the metal filters are separated from each other, and the uppermost metal filter can be easily and reliably taken out.

[Embodiment] An embodiment of a metal casting filter supply device according to the present invention will be described in detail with reference to the accompanying drawings.

1 and 2, reference numeral 10 indicates a casting metal filter supply device according to the present embodiment. This supply device 10 includes a holding cylinder 14 for stacking and holding a plurality of metal meshes (metal filters) 12, and a metal mesh 12 inside the holding cylinder 14.
A cylinder (actuator) 16 for integrally raising and lowering, and a wire mesh 12 provided on the holding cylinder body 14.
And a magnet 18a, 18b for inducing the same kind of magnetic poles to separate the wire nets 12 from each other, and the pneumatic pressure sensor 20 corresponding to the wire nets 12 separated in the holding cylinder 14 via the magnets 18a, 18b. Are placed.

The holding cylinder 14 is fixed to the upper part of the base 22 in the vertical direction, and the cylinder 16 is arranged coaxially with the holding cylinder 14 in the base 22 and extends vertically from the cylinder 16. The lift rod 24 extending to the upper end can advance to the upper edge of the holding cylinder 14.

An elevating table 26 is arranged in the holding cylinder 14, and a flange portion 28 formed on the elevating table 26 is supported on the upper surface of the base 22. A plurality of wire nets 12 are stacked on the lift table 26.

As shown in FIG. 2, the magnets 18a and 18b are configured such that the magnetic poles different from each other, that is, the N pole and the S pole are opposed to each other, and the holding cylinder body is formed.
It is arranged in a disc-shaped mounting portion 30 provided on the upper part of 14.

As shown in FIG. 3, the pneumatic pressure sensor 20 includes a holding cylinder.
A first pressure switch 32 for detecting whether or not there is only one wire mesh 12 which is separated via the magnets 18a and 18b at the upper part of 14;
And a second pressure switch 34 for detecting whether or not the wire mesh 12 is present at the separation position.

The first and second pressure switches 32 and 34 are injection nozzles.
36a, 36b and detection nozzles 38a, 38b, and a detection nozzle that detects a change in air pressure derived from the injection nozzles 36a, 36b.
It is configured to detect automatically by 38a, 38b whether or not there are two or more wire nets 12 or whether or not there are wire nets 12.

A carrying rod 40 is arranged above the holding cylinder 14 so as to be displaceable in a predetermined direction, and a magnet 42 for attracting and holding the wire net 12 is fixed to the carrying rod 40.

Next, the operation of the supply device configured as described above will be described.

As shown in FIG. 1, a plurality of wire nets 12 are housed in the holding cylinder 14 so as to be stacked on an elevating table 26, and the lift rod 24 is lifted under the driving action of the cylinder 16. The lift rod 24 raises the elevating table 26, and the uppermost wire net 12 is arranged above the holding cylinder 14 in correspondence with the magnets 18a and 18b.

Here, since the magnets 18a and 18b make the N pole and the S pole face each other, the magnetic poles of the S pole and the N pole are induced in the wire netting 12 correspondingly (see FIG. 4). Therefore, magnetic poles of the same kind are induced in the uppermost wire net 12 and the next wire net 12 and repel each other, and the uppermost wire net 12 floats.

At that time, the uppermost wire net 12 floats up to a position corresponding to the pneumatic pressure sensor 20, and a change in the air pressure derived from the injection nozzle 36a forming the first pressure switch 32 is detected by the detection nozzle 38a. Then, it is detected whether or not there are two or more wire nets 12. On the other hand, a change in the air pressure derived from the injection nozzle 36b forming the second pressure switch 34 is detected by the detection nozzle 38b, and the presence or absence of the wire net 12 at a predetermined floating position is detected.

When it is confirmed that the single wire net 12 is present at a predetermined floating position, the transport rod 40 is moved above the holding cylinder body 14 and is fixed to the transport rod 40.
By 42, the single wire mesh 12 in the floating state is adsorbed. Then, the wire net 12 is attached to a predetermined portion such as a gate in a casting die (not shown).

In this case, in this embodiment, the holding cylinder that is oriented in the vertical direction
Since a plurality of wire nets 12 are stacked and housed in the inside of 14, the housing space of the wire nets 12 can be narrowed at once in comparison with the conventional one in which each wire net 12 is arranged on a flat surface. The effect is obtained. As a result, downsizing of the entire supply device 10 can be achieved.

Moreover, after the stacked wire nets 12 are moved to a predetermined height position through the cylinder 16, the topmost wire nets 12 are
However, due to the magnetic poles induced by the magnets 18a and 18b, they separate from the other wire mesh 12 and float. Therefore, it is possible to prevent the wire nets 12 from being entangled with each other and becoming inseparable.
Twelve take-out operations will be carried out reliably and easily.

At that time, the first pressure switch 32 constituting the pneumatic pressure sensor 20 detects whether or not there are two or more wire nets 12 at the floating position, while the second pressure switch 34 makes the wire nets 12 at the floating position. It is detected whether or not there is. Therefore, the single wire net 12 can be surely sent to the transport rod 40, and the work of automatically supplying the wire net 12 can be efficiently performed.

[Effects of the Invention] As described above, the supply device according to the present invention has the following effects and advantages.

Since the plurality of metal filters are stacked in the holding cylinder, the space for accommodating the metal filters can be made as narrow as possible, and the entire supply device can be easily downsized.

Moreover, since the same kind of magnetic pole is induced through the magnet in the metal filter that is integrally lifted under the action of the actuator, the metal filters are separated from each other and the uppermost metal filter is easily and reliably taken out. It will be possible.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view of an embodiment of a supply device according to the present invention, FIG. 2 is a plan view of a magnet which constitutes the supply device, and FIG. 3 is a pneumatic pressure sensor which constitutes the supply device. 4 is a plan view of FIG. 4, and FIG. 4 is an operation explanatory view when the wire net is floated by the magnet. 10 …… Supply device 12 …… Wire mesh 14 …… Holding cylinder 16 …… Cylinder 18a, 18b …… Magnet 20 …… Pneumatic pressure sensor 26 …… Lifting table 32, 34 …… Pressure switch 36a, 36b …… Injection Nozzles 38a, 38b …… Detection nozzle 40 …… Conveying rod 42 …… Magnet

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-63-273545 (JP, A) Actual development: S62-189862 (JP, U) JP-B-61-1338 (JP, B2)

Claims (1)

[Claims] 1. A supply device for supplying, one by one, cup-shaped metal filters for removing dust, which are mounted on a casting mold, and hold a plurality of metal filters in a stack with their openings facing upward. A holding cylinder, an actuator for integrally raising and lowering the metal filter in the holding cylinder, and an actuator provided on the upper part of the holding cylinder for inducing the same kind of magnetic poles in each metal filter, A magnet for separating the metal filters from each other, and an air pressure sensor arranged corresponding to the metal filter separated above the magnet via the magnet, wherein the air pressure sensor is A first air injection nozzle and a first detection nozzle that are arranged to face each other at a central position, and a second air injection nozzle and a second detection nozzle that are arranged to face an eccentric position of the metal filter. A device for supplying a metal filter for casting, which comprises: