JPH0216851Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to an apparatus for collecting sand adhering to a cast product, and particularly to an apparatus for effectively collecting adhering sand that falls from a casting product during transportation.

BACKGROUND OF THE INVENTION A conventionally known transport hanger used for transporting cast products is shown in FIG. 1, for example.

This transportation hanger 1 is made of a frame 2 made of rod-shaped materials framed into a substantially cubic or rectangular parallelepiped shape.
A bracket 8 for lifting is provided at the top of the frame 2, and two mounting bars 4 for positioning and supporting the cast product are provided at the bottom end of the frame 2.

Such a transport hanger 1 is placed on a mounting bar 4,
For example, by placing a cast product 5 such as an automobile cylinder block on it and hooking the bracket 8 to a chain conveyor, self-propelled train conveyor, or other overhead conveyor, the cast product 5 can be reliably transported to a predetermined position. bring about.

However, such a conventional transportation hanger 1
is placed on the mounting bar 4 while adhering to the cast product 5, and does not have any means to collect the molding sand that falls from the cast product 5 during transportation. The adhering sand falls onto the floor during transportation, which causes problems such as insufficient sand in the sand treatment system and severe dust pollution in the factory. There was a problem in that a large amount of equipment and running costs were required to recover the molding sand.

Purpose of the invention This invention was made by focusing on the problems of the prior art, and was designed to effectively collect the foundry sand that falls from the cast product using an extremely simple structure, and to collect it in a specific manner. The present invention provides a device for collecting sand adhering to cast products that can be collected at a location.

Structure of the invention The device for collecting sand adhering to cast products of this invention pivots at least one sand tray at the lower end of a hanger for transporting cast products, preferably with its center of gravity biased to one side, and A stopper for maintaining the sand tray in the sand receiving position is provided on itself or on the hanger for transporting the cast product, and further, at a predetermined position,
A tray rotating means for rotating the sand tray to the sand discharge position is provided separately from the hanger.

According to the device of this invention, the molding sand that falls from the casting product during transportation is almost certainly collected by the sand tray, which is normally maintained in a sand-receiving position, and the hanger for transporting the casting product, and by extension the sand tray. When a predetermined position is reached, the sand receiving tray is rotated to the sand discharge position by means of a tray rotating means provided separately from the hanger, thereby making it possible to effectively recover the molding sand. For this reason, as in the prior art,
Problems caused by molding sand falling onto the floor can be almost completely eliminated.

Example This invention will be explained below based on illustrated examples.

FIG. 2 is a perspective view showing a hanger for conveying a cast product, and FIG. 3 is a side view showing the entire apparatus.

11 in the figure indicates the entire hanger for transporting cast products.
2 indicates each frame.

This hanger 11 for transporting cast products has a bracket 13 provided at the top of the frame 12, a mounting bar 14 provided at the middle of the frame 12 in the height direction, and a mounting bar 14 provided at the lower end of the frame 12. , in this example, has two sand trays 15 pivotally supported on the vertical bar 12a.

The sand tray 15 of this example, which has a rectangular planar shape and a right triangular side shape, has side walls 15b protruding from three sides of a rectangular bottom wall 15a. A vertical bar is installed through the bracket 15c so that one side of both bottom walls 15a that are not connected to each other abuts each other at the center in the width direction of the frame 12, and that both bottom walls 15a are inclined downwardly toward the outside of the frame 12. Pin 1 to 12a
It is supported by 6.

In order to always ensure that the sand tray 15 is in this normal state, its center of gravity should be shifted to the outside of the frame 12 rather than the pivot pin 16, and excessive rotation of the sand tray 15 should be limited by the stopper 17. However, in this case, a weight 18 is particularly attached to the outer end of the sand tray 15 to facilitate determination of its pivot position. Also, the stopper 17 is the sand tray 1.
5 can be provided in either the vertical bar 12a or the sand tray 15 as long as it can be maintained in the sand receiving position, in other words, in its normal state.
In this example, each is provided on the vertical bar 12a, and the rotation of the sand tray 15 is limited based on the abutment between it and the sand tray 15.

Although not shown, the weight 18 here
, the rectangular bottom wall 1 is located near the pivot position of the sand tray 15.
5a so that the weight 18 can come into contact with the vertical bar 12a when the sand receiving tray 15 is in the sand receiving position, it is possible to maintain that position without providing a separate stopper.

In this example, a tray rotating means 19 as shown in FIG. 3 is also provided at a predetermined position on the floor surface, for example, at a portion corresponding to the outer end of each sand tray 15. This dish rotating means 19 pivots one end of a cylinder 21 at the lower part of a frame 20, and this cylinder 2
The other end of the arm 22 is connected to the middle part of the arm 22, one end of which is pivoted to the upper end of the frame 20, and the free end of the arm 22, which has a sufficient length, is roller 22 installed there
a, the sand tray 15 is rotated in a direction in which the outer end of the sand tray 15 rises as shown by the imaginary line in the figure, against the weight of itself and the foundry sand collected therein. Therefore, the molding sand collected in the sand tray 15 flows into the hopper 23 provided below the hanger 11 from its inner end.

According to the apparatus configured in this manner, when the cast product 24 is placed on the mounting bar 14 of the hanger 11 for transporting the cast product and transported, for example, vibrations and other vibrations transmitted from the hanger 11 to the cast product 24 are transmitted. Almost all of the sand that has fallen from the surface of the cast product 24 and adhered thereto is collected in the sand tray 15 maintained in the sand receiving position.

Here, most of the foundry sand collected in the sand tray 15 flows toward the outer end of the sand tray 15 due to the above-mentioned inclination of the rectangular bottom wall 15a. Since the sand tray 15 contributes to maintaining the posture, the direction in which the molding sand spills due to the collection of molding sand therein, in other words, the sand tray 15
There is no possibility that the inner end of the holder will rotate in a downward direction.

The molding sand collected in the sand tray 15 and conveyed to a predetermined position is then activated by the tray rotating means 19 to rotate the arm 22 upward with the cylinder 21 to the imaginary line position in FIG. Therefore, by also rotating the outer end of the sand tray 15 upward as shown by the imaginary line in the figure, sand flows into the hopper 23 from the open inner end of the sand tray 15.

Therefore, according to this device, almost all of the sand adhering to the cast product 24 is collected into the hopper 23, and there is no possibility of problems caused by the sand scattering onto the floor surface. do not have.

Further, according to this example, since the plate rotating means 19 is provided at a predetermined position separately from the hanger 11, compared to the case where it is incorporated into the hanger 11,
In addition to reducing equipment costs, equipment and maintenance problems associated with moving piping and other components for operating the cylinder 21 together with the hanger 11 can be eliminated.

This invention has been explained above based on illustrated examples, but
The sand tray should be one piece, and the plate rotating means should be
At the outer end of the sand tray, there may also be a tapered wall or other inoperative fixing means that comes into contact with the underside of its bottom wall and brings about the required rotational movement of the sand tray.

Effects of the invention Therefore, according to this invention, at least one sand tray is pivotally supported at the lower end of a hanger for conveying a cast product, and a stopper is provided to maintain the sand tray in the sand receiving posture, and By providing a tray rotating means at a predetermined position to rotate the sand tray to the sand discharge position, it is possible to almost completely collect and recover the sand adhering to the casting product. There is no risk of it scattering on the surface, and various problems caused by this will not occur.

[Brief explanation of the drawing]

FIG. 1 is a perspective view illustrating a conventional conveyance hanger, FIG. 2 is a perspective view illustrating a cast product conveyance hanger according to this invention, and FIG. 3 is a side view illustrating the entire apparatus of this invention. . 11... Hanger for transporting cast products, 12... Frame, 14... Placement bar, 15... Sand tray, 1
5... Rectangular bottom wall, 15b... Side wall, 15c... Bracket, 16... Pin, 17... Stopper,
19...Plate rotating means, 21...Cylinder, 22
... Arm, 23 ... Hopper, 24 ... Casting product.

Claims (1)

[Scope of utility model registration request] At least one sand tray 15 pivotally supported at the lower end of the hanger 11 for transporting cast products, and the sand tray 1
A device for collecting sand adhering to a cast product, comprising a stopper 17 for maintaining the sand tray 15 in a sand receiving position, and a tray rotating means 19 for rotating the sand tray 15 at a predetermined position to a sand discharge position.