JP5403403B2 - Casting line and sand removal method - Google Patents

Description

  The present invention relates to a casting line and a sand removal method including a sand removal device that separates foundry sand and foundry material from a mold in a cooling process of casting.

  Conventionally, as a method for separating the molding sand and the product, a method in which a poured mold is poured into the drum and separated by rotation, vibration and water spray (see Patent Document 1), or a mold conveyed on the casting line is used. There was a method of placing on a vibrator and releasing and separating by vibration (see Patent Document 2).

JP-A-5-0138332 JP 2003-010962 A

However, the method and apparatus described in Patent Document 1 have a problem in that it is difficult to individually manage each mold in the subsequent process because a large number of molds cannot be placed in the drum and sand can be removed for each mold. It was.
In the method and apparatus described in Patent Document 2, a mold containing a casting material punched up from a casting frame (casting frame) is transferred to a vibrator by a pusher or a gripping means, and sand is removed by vibration of the vibrator. ing. Next, the casting material from which the sand has been removed and the foundry sand has been separated is pushed out by a pusher and transferred to a cooling basket.
Here, since it is punched up one by one from the casting frame, it looks as if management for each mold can be performed. However, the sand is dropped due to the vibration of the vibrator and transferred to the cooling basket for some reason together with the casting material of the mold left behind by the vibrator and sent next. May be.
Therefore, individual management for each mold cannot be performed in a later process.

  Therefore, in view of the above circumstances, the present invention is capable of reliably performing individual management for each mold even after sand removal by performing sand removal for each mold in the mold after pouring. The purpose is to provide a line.

The casting line of the present invention is a casting line comprising a sand dropping device on a cooling line constituted by an outward path, a traverser, and a return path for conveying a poured mold and cooling the mold,
A platen carriage that moves along the forward path line and conveys the mold that is folded back by the traverser and moves along the return path line;
A mold carrying receiving box placed on the surface plate carriage and containing one mold and having a sand removal grid at the bottom;
A mounting frame on which the mold transport receiving box is mounted;
A vibrator that is disposed between the forward line and the return line and vibrates the mold transport receiving box, and vertically moves the mold transport receiving box placed on the placement frame via the vibrator. A sand dropping device for dropping casting sand from the casting container receiving box, which comprises a lifting device using an air spring to be
Wherein the mold carrying the receiving boxes which are housed the mold on the forward line is transferred to the loading frame, transferring the mold carrying the receiving boxes which shakeout is over the platen carriage on the return line A transfer device,
And a platen cleaning device for cleaning an upper surface of the platen carriage separated from the mold carrying box on the forward line by the transfer device.

  According to the present invention, one mold is put in one receiving box, and the receiving box is vibrated by a vibrator to perform sand removal. Even after separation, individual management for each mold can be performed.

It is an external view from the diagonally lower side of the receiving box used for this invention. It is a top view of the casting line concerning one embodiment of the present invention. It is an AA arrow line view of FIG. It is a partially cutaway BB arrow line view of FIG. 2 which shows a traverser. It is a figure which shows the initial position of operation | movement of a transfer apparatus. It is a partially cutaway DD arrow view of FIG. 2 which shows a transfer apparatus. (A) It is a schematic diagram which shows operation | movement of a sand removal apparatus, and is a figure which shows the state which the vibrator is falling. (B) It is a schematic diagram which shows operation | movement of a sand removal apparatus, and is a figure which shows that a vibrator is raised and sand removal is performed. It is a partially notched CC arrow line view of FIG. 2 which shows a surface plate cleaning apparatus.

Hereinafter, a casting line E according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Here, as described in claim 1, the casting line includes a surface plate carriage, a mold transport receiving box, a sand dropping device, and a transfer device.

As shown in FIG. 1, which is an external view from obliquely below, a casting container receiving box 1 (hereinafter referred to as a receiving box) used in the present invention has a box shape with an upper opening and is used for sand removal on the bottom surface. It has a lattice 1a. In addition, above both side surfaces, there are provided clamp receivers 1b protruding in parallel with the transport direction.
To simplify the drawing, the sand removal grid is omitted in the other drawings except for FIG.

  As shown in FIG. 2 which is a plan view of the casting line and FIG. 3 which is an AA arrow view thereof, the casting line E includes a plurality of surface plate carriages 3.

In FIG. 2, the platen carriage 3 moves the forward line E1 in the order of arrows F1 and F2, is turned back by the traverser 4 in the direction of the arrow F3, and the return path line E2 is set one by one in the order of arrows F5 and F6 (one box). Each one).
The forward line E1 and the return line E2 are connected by a bogie circulation line E3.
The receiving box 1 is placed on the platen carriage 3 and conveyed, and the mold 2 is cooled in the receiving box 1. The mold 2 contains a casting material 2a.

The sand dropping device 5 is disposed between the forward path line E1 and the return path line E2. Further, as shown in FIGS. 5, 6 and 7, the vibrator 5a and an elevating device 5b using an air spring for moving the vibrator 5a up and down are included. Further, a mounting frame 5 c for mounting the receiving box 1 is installed above the sand dropping device 5.
In addition, in FIG. 3, illustration of the said sand removal apparatus 5 is abbreviate | omitted for simplification of drawing.

  The transfer device 6 is disposed over the forward line E1, the sand drop device 5, and the return line E2. The transfer device 6 includes a guide frame 6a disposed so as to straddle the forward path line E1, the sand dropping device 5, and the return path line E2, and a reciprocating motion provided so as to be capable of reciprocating on the guide frame 6a. It comprises a device 6b, a clamp device 6d provided with a clamp arm 6c for clamping the receiving box 1, and two pairs of clamp lifting devices 6e arranged on the reciprocating device 6b and moving the clamp device 6d up and down. .

  The surface plate cleaning device 7 shown in FIG. 8 is disposed downstream of the transfer device 6 in the forward path E1. The surface plate cleaning device 7 scrapes the foundry sand on the upper surface of the surface plate carriage 3 with a plurality of brushes 7c attached to a belt 7b rotated by rotation of a motor 7a.

  The traverser 4 is disposed downstream of the surface plate cleaning device 7. As shown in FIG. 4, the traverser 4 is sequentially fed one by one so that the platen carriage 3 is turned back from the forward path line E1 to the backward path line E2.

Next, the operation of the casting line E configured as described above will be described.
The receiving box 1 shown in FIG. 1 can store one poured mold 2 in one receiving box (see FIG. 7). Thereby, the casting_mold | template 2 and the receiving box 1 can be linked | related.
The receiving box 1 placed on the platen carriage 3 is conveyed in the direction of the arrow F1 on the forward line E1. And the said receiving box 1 is isolate | separated from the said surface plate trolley | bogie 3 by the transfer apparatus 6, and is mounted on the mounting frame 5c in the upper part of the sand dropping apparatus 5. FIG.

  After the receiving box 1 is separated, the surface plate carriage 3 is transported in the direction of the arrow F2 and scrapes the foundry sand on the upper surface by the surface plate cleaning device 7 disposed downstream of the transfer device 6. It is cleaned by dropping.

Here, operation | movement of the said surface plate cleaning apparatus 7 is demonstrated in detail using FIG.
When the surface plate carriage 3 is conveyed, the surface plate cleaning device 7 is flipped up by a cylinder 7e around the shaft 7d, and interferes with the surface plate carriage 3 to which the brush 7c is conveyed. Evacuate so as not to. When the platen carriage 3 is conveyed to the platen cleaning device 7, the cylinder 7 e is contracted, and the brush 7 c comes into contact with the upper surface of the platen carriage 3.
The motor 7a rotates the belt 7b to which the brush 7c is attached, so that the brush 7c scrapes the foundry sand on the upper surface of the surface plate carriage 3 (surface plate cleaning step).

  Further, after the upper surface of the platen carriage 3 is cleaned, the direction is changed by the traverser 4 in the order of the arrows F3 and F5, and the carriage is conveyed to the return line E2.

After the receiving box 1 is placed on the mounting frame 5c by the transfer device 6, as shown in FIG. 7, the lifting device 5b of the sand dropping device below the mounting frame 5c is operated. Then, the vibrator 5a is raised. The vibrator 5a is always in an operating state.
The vibrator 5a vibrates the receiving box 1 so that the foundry sand adhering to the casting material 2a from the grid 1a for sand removal provided on the bottom surface of the receiving box 1 is placed under the receiving box 1. Drop it.
After the receiving box 1 is vibrated for a certain period of time, the lifting device 5b is operated to lower the vibrator 5a. Then, the said receiving box 1 is again mounted on the mounting frame 5c mentioned above (sand dropping process).

  Next, the transfer device 6 finishes the sand removal, and the receiving plate 1 placed on the mounting frame 5c of the surface plate carriage 3 whose upper surface is cleaned by the surface plate cleaning device 7 is used. Place on top.

Here, operation | movement of the transfer apparatus 6 of the receiving box 1 is demonstrated in detail based on FIG. 5 which shows an initial position, and FIG. 6 which shows an end position.
The transfer starts from the initial position shown in FIG. First, the receiving box 1A is conveyed below the transfer device 6 by the forward line E1. In the meantime, the preceding receiving box 1B is sand-dropped by the sand-dropping device 5 and placed on the mounting frame 5c.
Then, the two pairs of clamp devices 6d of the transfer device 6 are lowered by the clamp lifting device 6e, and the clamp arm 6c is placed on the clamp receiver 1b of the receiving box 1A and the preceding receiving box 1B.

Then, the clamp lifting device 6e lifts the receiving box 1A and the preceding receiving box 1B together with the clamping device 6d.
Then, the drive cylinder 6f of the reciprocating device 6b is operated, and the reciprocating device 6b is moved in the direction F4 to the transfer end position shown in FIG. Next, the clamp lifting / lowering device 6e is lowered, and the receiving box 1A is placed on the placement frame 5c (first placement step). The preceding receiving box 1B is placed on the surface plate carriage 3 on the return line E2 (second placing step). The receiving box 1B is placed on the surface plate carriage 3 after the upper surface of the surface plate carriage 3 has been cleaned in advance by the surface plate cleaning device 7. Thereafter, after the clamp arm 6c is removed from the clamp receiver 1b, the clamp lifting / lowering device 6e is operated to raise the clamp device 6d. Then, the drive cylinder 6f is operated to move the reciprocating device 6b to the original position in FIG.

  The receiving box 1A on which the mold 2 is placed is dropped by the sand dropping device 5 as described above. Then, the platen carriage 3 of the forward path line E1 and the backward path line E2 is conveyed to the initial position shown in FIG. This is repeated below.

  In another embodiment according to the present invention, the surface plate cleaning device is not arranged, and the surface plate carriage 3 is cleaned by the surface plate cleaning device 7 on the upper surface of the surface plate carriage 3. Without being conveyed to the second placement step. Other configurations and operations are the same as described above.

The present invention can also improve the cooling efficiency of the casting material 2a in the receiving box by separating the foundry sand during cooling.
In addition, by providing a surface plate cleaning device, it is possible to reduce the removal of foundry sand to the subsequent process.

  It should be noted that the present invention is not limited to specific preferred embodiments, and various applications are possible with ordinary knowledge in the art within the technical scope described in the claims.

DESCRIPTION OF SYMBOLS 1, 1A Mold conveyance box 1B Preceding mold conveyance box 1a Lattice 1b Clamp receiver 2 Mold 2a Casting material 3 Surface plate truck 4 Traverser 5 Sand remover 5a Vibrator 5b Lifting device 5c Mounting frame 6 Transfer device 6a Guide frame 6b Reciprocating device 6c Clamp arm 6d Clamping device 6e Clamp lifting device 6f Drive cylinder 7 Surface plate cleaning device 7a Motor 7b Belt 7c Brush 7d Shaft 7e Cylinder E Casting line E1 Outward line E2 Return line E3 Bogie circulation line F1, F6 Direction F2, F3, F5 in which the platen carriage and the receiving box move F5 Direction in which the platen carriage moves F4 Direction in which the receiving box moves

Claims (3)

A casting line having a sand removal device on a cooling line configured by an outward line, a traverser, and a return line for conveying a poured mold and cooling the mold,
A platen carriage that moves along the forward path line and conveys the mold that is folded back by the traverser and moves along the return path line;
A mold carrying receiving box placed on the surface plate carriage and containing one mold and having a sand removal grid at the bottom;
A mounting frame on which the mold transport receiving box is mounted;
A vibrator that is disposed between the forward line and the return line and vibrates the mold transport receiving box, and vertically moves the mold transport receiving box placed on the placement frame via the vibrator. A sand dropping device for dropping casting sand from the casting container receiving box, which comprises a lifting device using an air spring to be
Wherein the mold carrying the receiving boxes which are housed the mold on the forward line is transferred to the loading frame, transferring the mold carrying the receiving boxes which shakeout is over the platen carriage on the return line A transfer device,
A casting line comprising: a surface plate cleaning device that cleans an upper surface of the surface plate carriage separated from the mold carrying box on the forward line by the transfer device. The surface plate cleaning device is
A plurality of brushes for scraping the foundry sand on the upper surface of the platen carriage 3;
A belt to which the brush is attached;
The casting line according to claim 1, comprising a motor for rotating the belt. A first placement step of transferring a casting mold receiving box having a single mold and a sand removal grid at the bottom thereof from the top of the platen carriage to a placement frame above the sand dropping device;
The raising / lowering device of the sand removal device under the mounting frame operates to raise the vibrator to raise the casting container receiving box on the mounting frame, and the vibrator of the sand removal device it overlooked the molding sand before hearing guided for receiving box to vibrate the mold carrying the receiving boxes, after which was vibrated a predetermined time, the template conveyor receiving by lowering the vibrator the lifting device is operated and the shakeout process you placed on the placing frame of the box,
A surface plate cleaning step for cleaning an upper surface of the surface plate carriage separated into the mold transport receiving box and the surface plate carrier by the first placement step;
Shakeout method characterized in that it comprises a second mounting step of changing the mold carrying the receiving boxes of the platen carriage through the constant-board cleaning process has passed the shakeout process was transferred from the loading frame.