JP5246224B2 - Casting line and sand removal method - Google Patents

Description

  The present invention relates to a casting line and a sand removal method provided with a sand removal device that separates sand and raw material from a mold in a casting cooling process, and more specifically, a sand removal device with a single sand removal device. It relates to a casting line and a sand removal method.

  Conventionally, as a method for separating sand and cast product in a cooling process of a casting line, a method in which a poured mold is poured into a drum and separated by rotation, vibration and sprinkling (see Patent Document 1), There has been a method (see Patent Document 2) in which a mold to be conveyed on a casting line is placed on a vibrator and disassembled and separated by vibration.

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 post-process because a large number of molds cannot be placed in the drum and sand removal can be performed for each mold. It was.

  In the method and apparatus described in Patent Document 2, a mold containing a material punched up from a casting frame (casting frame) is transferred to a vibrator by a pusher or a gripping means, and sand is dropped by the vibration of the vibrator. ing. Next, the material from which the sand has been removed and the 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 mold is left in the vibrator for some reason until it is crushed by the vibration of the vibrator and transferred to the cooling basket, and then transferred to the cooling basket together with the material of the mold that has been fed. May be posted. Therefore, there has been a problem that individual management for each mold cannot be performed in a later process.

  Therefore, in view of the above circumstances, the present invention provides a casting line 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. And to provide a sand removal method.

The casting line of the present invention made to solve the above problems is a casting line equipped with a green sand casting sand removal facility, and the green sand casting sand removal facility is connected to a grid separating sand and material. The mold is carried in and out by a mold carry-in pusher that can move independently and a mold carry-out carriage, and the grid and shake-out machine are separated, and a shake-out machine is placed under the grid to provide a single mold. The apparatus is characterized by being a single sinking sand removal device that carries in one by one and carries out separated materials one by one .

As in claim 2, it is preferable that the mold extrusion plate of the mold carry-out carriage is provided with a comb blade for cleaning a cast burr and a lattice groove in which clogging occurs in the method . Further, as in claim 3, at both ends of the mold carry-out carriage, a partition that also serves as a mold extruding plate that can be moved up and down, and a partition that can be moved up and down are provided, and when the sand is dropped, the material can be prevented from protruding and falling from the top surface of the lattice preferable. Further, as in claim 4, it is preferable to provide a mold crushing blade that can be moved up and down at the upper part of the shake-out machine of the mold carry-out carriage, and to crush the unpoured mold.

Moreover, the sand removal method of the present invention is such that the mold is carried one by one on the lattice by the mold carry-in pusher, and the sand and the material are separated by applying vibration by a shake-out machine arranged at the bottom of the lattice. Is a sand removal method that uses a mold unloading cart to remove the sand and the shakeout machine, and separates the grid from the shakeout machine and places the grid on the shakeout machine. By lowering the machine, the lattice is deposited from the shake-out machine to the lattice receiving stand lattice, and in a stationary state, the material is unloaded from the lattice with a mold unloading carriage with a comb blade. .

In addition, after adopting a structure in which the lattice and the shakeout machine are integrated as in claim 6 and separating the sand and the material, the frequency of the shakeout machine vibration motor is controlled to 30 Hz or less, and the lattice is not vibrated. The material can be taken out by a mold carrying cart with a comb blade.

  According to the present invention, one mold is put from a mold pusher into a lattice on a shake-out machine, the lattice is vibrated by a shake-out machine, sand is removed, and the mold is further carried out by a mold carrying cart. In this way, sand removal can be performed for each mold, so that individual management for each mold can be performed even after separation of the sand and the material.

It is a front view in the in-situ position of the one sinking sand removal apparatus with a raising / lowering apparatus. It is an AA arrow line view of FIG. It is a BB arrow line view of FIG. It is a front view at the time of casting_mold | template carrying-in of the one sinking sand removal apparatus with a raising / lowering apparatus. It is an AA arrow line view of FIG. It is a BB arrow line view of FIG. It is a front view at the time of the start of the sand removal of the single sink sand removal apparatus with a raising / lowering apparatus. It is an AA arrow line view of FIG. It is a BB arrow line view of FIG. FIG. 3 is a front view of a single sand removal apparatus with a lifting device when sand removal is completed. It is an AA arrow line view of FIG. It is a BB arrow line view of FIG. It is a front view at the time of casting_mold | template carrying out of the one sinking sand dropping apparatus with a raising / lowering apparatus. It is a front view at the time of a mold carry-out cart return of the one sinking sand dropping apparatus with a raising / lowering apparatus. It is a front view at the time of completion of the process of a single sink sand removal device with a lifting device. It is a front view at the time of the start of sand removal of the sand removal apparatus with a mold crushing lifter. It is CC arrow line view of FIG. It is a front view at the time of a mold crushing lifter lowering. It is CC arrow line view of FIG. It is a front view at the time of the sand removal of the one sinking sand removal apparatus which does not attach a raising / lowering apparatus. It is an AA arrow line view of FIG. It is a BB arrow line view of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1-3, the front view and sectional drawing in the original position of the single cast sand removal apparatus with a raising / lowering apparatus which are the raw sand cast sand removal equipment used for the casting line of this invention are shown.

  In this raw sand casting sand dropping equipment, a shake-out machine 4 is disposed below a grid 3 separating the sand 1 and the material 2, and a mold carry-in pusher that can move the mold 5 into and out of the grid 3 independently. 7 and the mold unloading cart 10. The shakeout machine 4 includes a lifting device 18 and a vibration motor 20. The mold carry-in pusher 7 has a structure in which a mold extrusion plate 9 is provided at the tip of a horizontally installed cylinder 8. Loading of the mold 5 before the mold loading pusher 7 is performed by the upstream mold pusher 6 arranged in a perpendicular direction.

  4 to 6 show a front view and a cross-sectional view of a state in which the mold 5 is carried onto the lattice 3 by the mold carry-in pusher 7. As shown in FIG. 4, the mold 5 is conveyed onto the grid 3 by the mold carry-in pusher 7, and the grid 3 is struck and vibrated by the shake-out machine 4 provided with the lifting device 18 to perform sand removal. The lattice 3 is supported on the lattice support 19 and separated from the shakeout machine 4. By raising the shake-out machine 4 with the lifting device 18 and striking the separated lattice 3 on the shake-out machine 4, the excitation force increases, so the sand removal effect from the material 2 is improved. Can be made.

  The mold carry-out carriage 10 is provided with a mold extruding plate 14 that can be moved up and down by a lifting cylinder 13 on a carriage 12 that reciprocates above a lattice 3 by a cylinder 11 that is horizontally installed above. FIGS. 7 to 9 show a state in which the mold extruding plate 14 that can be moved up and down of the mold carry-out carriage 10 is lowered and the shakeout machine 4 is raised by the lifting device 18 to perform sand removal.

A comb blade 16 for cleaning the grooves 15 of the lattice 3 where clogging occurs due to casting burrs or a plan is provided on the mold extruding plate 14 on which the mold carrying cart 10 can be moved up and down. Further, in order to prevent the raw material 2 from protruding or dropping from the upper surface of the lattice 3 when the sand is dropped, a partition 17 that can be moved up and down is provided on the opposite side of the mold extruding plate 14 that can move the carriage 12 of the mold carry-out carriage 10 up and down. The mold extruding plate 14 that can be moved up and down also functions as a partition for preventing the material 2 from protruding and falling.

  As described above, in this embodiment, the lattice 3 and the shakeout machine 4 are separated, and the lattice 3 is placed on the shakeout machine 4. Therefore, after the sand removal is completed, the shake-out machine 4 with the lifting device 18 is used to lower the shake-out machine 4 so that the lattice 3 is deposited from the shake-out machine 4 onto the lattice receiving stand 19 and is stationary. Then, the material 2 is carried out by the mold extruding plate 14 with the comb-groove 16 for cleaning the lattice grooves. 10 to 12, after the sand removal is completed, the shakeout machine 4 is lowered by the lifting device 18, the lattice 3 is deposited on the lattice receiving frame 19, and the partition 17 that can move the mold carrying cart 10 is raised. Indicates the state.

  FIG. 13 shows a front view of the state in which the mold carry-out carriage 10 is moved to the outgoing side and the material 2 is carried out onto the cooling pallet 25 by the lowered mold extruding plate 14. The cooling pallet 25 is located to the side of the lattice 3 and is carried out to a subsequent process by a pallet conveying device 26 (in this embodiment, a driving roller). Thereafter, as shown in FIG. 14, the lowered mold extruding plate 14 is raised, and the mold carry-out carriage 10 is moved to the return side. FIG. 15 shows a state where the ascending / descending partition 17 is lowered and returned to the original position.

  As described above, according to the present invention, one mold 5 is put into the grid 3 on the shake-out machine 4 from the mold carry-in pusher 7, and the grid 3 is vibrated by the shake-out machine 4 to remove sand, and the sand is cast one mold at a time. Since it can be dropped, individual management for each mold can be performed even after the sand 1 and the material 2 are separated.

  Note that a mold crushing comb blade 24 that can be moved up and down by a cylinder 23 is provided at the sand removal position 22 above the shake-out machine 4 of the carry-out mold pusher carriage 12 in order to crush the unpoured mold having poor sand removal properties. good. 16 to 17 show a front view and a cross-sectional view of a single-casting sand removal device provided with a mold crushing comb blade 24 that can be moved up and down by a cylinder 23. 18-19 show a front view and a cross-sectional view of the state in which the mold crushing comb blade 24 is lowered to crush the unpoured mold.

  In the embodiment described above, the lattice 3 is supported on the lattice support 19 and separated from the shakeout machine 4. However, in the other embodiments shown in FIGS. And are combined. In this case, the frequency of the vibration motor 20 of the shake-out machine 4 is controlled to 30 Hz or less, and the material 2 is cooled on the cooling pallet 25 by the mold extruding plate 14 with the lattice groove cleaning comb blade 16 in a state where the lattice 3 is not vibrated. Carry it out.

  In this embodiment, the sand removal effect is not as good as when the lattice 3 and the shake-out machine 4 are separated. However, since it is possible to prevent the noise generated when the lattice 3 is hit by the shake-out machine 4 and the wear of the strike-out surface liner 21 provided on the shake-out machine 4 and the lattice 3, it is possible to remove the sand relatively easily. Can be used for sand removal of material 2.

DESCRIPTION OF SYMBOLS 1 Sand 2 Material 3 Lattice 4 Shakeout machine 5 Mold 6 Upstream mold pusher 7 Mold carry-in pusher 8 Cylinder 9 Mold push-out plate 10 Mold carry-out carriage 11 Cylinder 12 Carriage 13 Lift cylinder 14 Mold push-out plate 15 Groove 16 Comb blade 17 Lift 18 Equipment 19 Grid support 20 Vibration motor 21 Strike surface liner 22 Sand removal position 23 Cylinder 24 Comb blade for crushing mold 25 Cooling pallet 26 Pallet conveying device

Claims (6)

  A casting line equipped with a green sand casting sand removal facility, wherein the green sand casting sand removal facility includes a mold carry-in pusher that individually moves a mold into and out of a lattice that separates sand and material, and a mold. A single sand that is carried out with the unloading cart and separates the lattice from the shakeout machine and places the shakeout machine below the lattice to carry the molds one by one and unload the separated materials one by one. Casting line characterized by being a dropping device. 2. The casting line according to claim 1, wherein the mold extrusion plate of the mold carry-out carriage is provided with a comb blade for cleaning a groove of a lattice in which clogging occurs in the casting burr and the method .   2. A partition that serves as a mold extrusion plate that can be moved up and down and a partition that can be moved up and down are provided at both ends of the mold carry-out carriage to prevent the material from protruding and falling from the upper surface of the lattice when sand is dropped. Casting line.   The casting line according to claim 1, wherein a comb crusher for crushing the mold that can be moved up and down is provided at the upper part of the shake-out machine of the mold carry-out carriage and at the sand removal position to crush the unpoured mold.   The molds are carried one by one onto the grid by the mold loading pusher, and the sand and the material are separated by applying vibration by the shake-out machine arranged at the lower part of the grid, and the separated materials are carried out one by one by the mold unloading cart. It is a sand removal method, adopting a structure in which the lattice and the shakeout machine are separated and the lattice is placed on the shakeout machine, and after separating the sand and the material, the lattice is removed by lowering the shakeout machine. A sand removal method characterized by depositing material from a shake-out machine to a lattice receiving stand lattice and taking out the material from the lattice with a mold carrying cart with a comb blade in a stationary state.   Adopting a structure that integrates the lattice and shakeout machine, separating the sand and the material, then controlling the frequency of the shakeout machine vibration motor to 30Hz or less, and the mold unloading cart with comb blades without vibrating the lattice The sand removal method according to claim 5, wherein the material is carried out at a point.

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