JPH0318043Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is suitable for use with granular materials such as foundry sand, shot material, small burrs, large burrs, lumps such as risers, runners, cold metals, etc., and castings. This relates to a casting sorter that separates, sorts, and recovers the casting body from the main body.

[Prior art] Conventionally, in order to sieve the castings and foundry sand in the mold, a shakeout for casting has been provided with a crosspiece that sieves the sand by vertical vibration and an inclined bottom plate that discharges the sieved sand. The machine is known (see Japanese Utility Model Application No. 57-92462).

However, this type of shake-out machine for casting has a problem in that burrs, cooling metals, risers, runners, etc. remain in the mold together with the casting, which requires further sorting.

[Purpose of the invention] The purpose of the invention is to automatically sort into at least three types: granular materials such as sand and shot materials, relatively large lumps such as burrs, cold metals, and risers, and castings themselves. The object of the present invention is to provide a casting sorting machine that can perform the following steps.

[Structure of the invention] Therefore, the present invention has a bottom plate that is swingably installed on the support, a vibration source that is fixedly installed on the bottom plate at an angle in the direction of movement of the workpiece, and The first sieve is provided with a gap that gradually widens in the direction of movement of the workpiece, and the upper surface is inclined to either the left or right with respect to the direction of movement of the workpiece, and the first sieve is arranged below the first sieve on the bottom plate. , a casting sorter comprising: at least one second sieve having an uneven cross section in the direction perpendicular to the direction of movement of the work, and having a predetermined interval for dropping the work along the direction of movement of the work; I will provide a.

[Effect of the invention] According to the invention, in the first half of the first sieve, the shot,
Sand and small burrs are sieved out, and in the second half, chilled metal, burrs, risers, etc., which are smaller than castings, are sieved out.
As mentioned above, the cold metal is sifted out by the second sieve, and the casting itself can finally be recovered.
Since automatic sorting is possible and the sorting machine itself can be driven by a single drive source, it can be manufactured compactly and at low cost.

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, FIG. 2, and FIG. 3, the casting sorter includes a main body frame 3 that supports a first sieve 1 and a second sieve 2, and a support frame that supports this main body frame 3 so as to be able to vibrate. 4 and main frame 3
It basically consists of a vibration generator 5 that vibrates.

The main body frame 3 is basically constructed as an assembly of a bottom plate 6 which is elongated in the direction of movement of the casting, etc., and a pair of side walls 7, 7 rising from both sides of the bottom plate 6. A pair of spring receiver brackets 8, 8 are fixedly provided on the rear side walls 7, 7, respectively, and are mounted on a pair of spring receivers 10, 10 installed on the horizontal frame 9 of the support frame 4, respectively. It is supported so as to be able to vibrate by attached coil springs 11, 11. Further, a support rod 12 is provided in the front half of the main body frame 3 and extends to both sides through the upper portions of the side walls 7, 7.
Spring receiving brackets 13, 13 are provided at both ends of the support frame 4, respectively.
Coil spring 1 attached to the upper end of 4, 14
5 and 15 so as to be able to vibrate. As a result, the main body frame 3 is elastically supported by a total of four coil springs 11, 11, 15, and 15 at a total of four points on the front, rear, left, and right sides.

A pair of vibrators 16, 16 constituting the vibration generator 5 are connected to each side wall 7 by a connecting rod 17 fixed across the width direction of the bottom plate 6 at an intermediate portion thereof.
is fixed on the outside of the Each vibrator 16 is attached so as to face forward and downward when viewed in the direction of movement of the workpiece, and generates vibrations that move the workpiece forward in the direction of movement.

As clearly shown in FIG. 2, a raised loading port 18 is formed at the rear end of the main body frame 3, and the casting conveyed by the charging conveyor 19 is filled with sand, shot material, etc. Furthermore, burrs of various sizes,
It is charged into this loading port 18 together with the riser, runner, and chiller.

The castings and other contents charged into the loading port 18 are first sieved by the first sieve 1.

As shown in FIG. 5, the first sieve 1 is constructed by inclining a plurality of shapes 20 having an inverted L-shape in cross section by a slight angle in the width direction, and also by a predetermined small angle with respect to the traveling direction of the workpiece. As clearly shown in FIG.
The notch is cut out in an inverted triangular shape when viewed in the direction of travel so that the distance 21 between the two increases. In addition, each mold material 2
0 has a wear-resistant metal material 20a on its surface.
It is preferable to attach a tread to improve wear resistance.

As shown in FIGS. 2 and 4, below the rear half 1A of the first sieve 1, there is a first recovery chute 2.
2 is provided, and among the input materials, granular materials such as sand, shot material, and small burrs are passed through the rear half 1 of the first sieve 1.
It is sieved through narrow intervals A and collected into the first collection chute 22.

Further, as is clear from FIG. 4, below the first sieve 1, there is a space for receiving burrs, risers, and even cold metals that are sieved from the wide spaced part of the front half 1B of the first sieve 1. The second stage 2-1 of the second sieve 2 is attached in a supported manner from the bottom plate 6.

The second sieve 2 has first to third stages 2-1, 2-2, 2 which are lowered stepwise along the direction of movement of the workpiece.
-3. These first to third
As clearly shown in FIG. 3, the stages 2-1 to 2-3 are formed of corrugated plates having a corrugated cross section in the width direction, and the first stage 2-1 and the third stage 2-3 are The second stage 2-2, which relays the interval 2
3 and 24 are formed.

The corrugations in the corrugated plate are sized to correspond to the dimensions of the recovered objects such as burrs, risers, and chilled metals, and are structured so that each recovered object can be aligned in the direction of the wave grooves during the vibration process. . In addition, the above intervals 23, 24
Also, the intervals are such that each of the collected items can be dropped downward from between them, so that the fallen items can be collected into a second collection chute 25 provided below.

In addition, long burrs and runners that did not fall into the above two drop intervals 23 and 24 are removed from the third stage 2-2.
3 into a large third collection chute 26 installed on the bottom of the foundation.

On the other hand, on the tip side of the first sieve 1, there is provided a casting holder 27 that is one step lower than the first sieve 1, and the casting received in this casting holder 27 diagonally crosses both side walls 7, 7. The above-mentioned third collection chute 26 is distributed to one of the left and right sorting guides 28 and 28 extending in a "V" shape through a chute 29 fixed diagonally forward and downward at the tip of each sorting guide 28.
Collect within.

In this embodiment, the second collection chute 25 is made movable along the traveling direction of the workpiece, and a moving cylinder 30 for moving the second collection chute 25 is provided on the support frame 4 side, and after cooling the collected material to a certain extent,
The second collection chute 25 may be moved to the position shown by the imaginary line in FIG. 4, and the material may be finally collected into the third collection chute 26 via the guide chute 31.

With the above configuration, simply loading the casting together with sand, shot material, etc. from the loading port 18 while the main body frame 3 is vibrated by the vibration generator 5,
Sand, shot material, and small burrs are first sieved off by the rear half 1A of the first sieve 1 and collected in the first collection chute 22, and then the burrs and burrs that are sieved off from the front half 1B of the first sieve 1 are removed from the sieve. Refrigerated metal, etc. are received by the second sieve 2, and after being gradually aligned by vibration, they are collected into the second collection chute 25 from the front and rear intervals 23, 24 of the second stage 2-1. will be done.

On the other hand, the casting itself is received by a casting pedestal 27 that is continuous with the first sieve 1, and is collected into a third collection chute 26 via a sorting guide 28 and a chute 29.

In the above embodiment, the second sieve 2 has a three-stage configuration, but for example, it may be configured such that one stage of the second sieve having an appropriate step and interval is provided with respect to the first sieve 1. 2. Any sieve may be used as long as it can reliably separate and collect burrs, chilled metal, boiler water, etc.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a casting sorter according to an embodiment of the present invention, Fig. 2 is a side view, Fig. 3 is a front view, and Fig. 4 is a cross-sectional explanation along the line A-A of Fig. 1. 5 are partial cross-sectional views in the width direction showing the structure of the first sieve. 1... First sieve, 2... Second sieve, 5... Vibration generator, 6... Bottom plate, 11, 15... Coil spring.

Claims (1)

[Scope of utility model registration request] A bottom plate is swingably installed on the column, a vibration source is fixed on the bottom plate at an angle in the direction of workpiece movement, and a gap gradually widens in the direction of movement of the workpiece on the bottom plate. At the same time, there is a first sieve whose upper surface is inclined to either the left or right with respect to the traveling direction, and a first sieve which is disposed below the first sieve on the bottom plate and has a cross section in a direction perpendicular to the traveling direction of the workpiece. A casting sorter comprising at least one second sieve formed in an uneven shape and having a predetermined interval for dropping the work along the advancing direction of the work.