JP5970929B2 - General-purpose unpacking apparatus for mold and general-purpose unpacking method for mold using the same - Google Patents

Description

  The present invention relates to a general-purpose mold opening device for separating a casting sand from a poured mold and taking out the material in a casting line for manufacturing the material, and a general-purpose mold opening method using the same. is there.

  The mold in which the material (cast product) is cast is transported to a frame removal apparatus equipped with a shakeout machine in order to take out the material. The shake-out machine is provided with a grid for separating the foundry sand and taking out the material, and Patent Document 1 discloses a shake in which a plurality of vertical grids are arranged at intervals toward the material feed direction. An out machine is disclosed.

  Patent Document 2 discloses a reverse take-out device, a clamp device that clamps a lower frame transported to a take-out position by a transport means, an open / close gate device that is positioned over the clamped lower frame, a clamp device, and an open / close gate device. And a reversing machine that reverses the upper and lower surfaces by supporting the reversing device, a lifting device that moves up and down by supporting the reversing device, and a reciprocating motion that supports the lifting device between the take-out position and the discharge position on the shaker (shakeout machine). An unpacking device in a casting line including a transfer device is disclosed.

  Japanese Patent Application Laid-Open No. 2004-228667 discloses a frame opening device including a shakeout machine and a manipulator. In this unpacking apparatus, the poured casting sand mold is extracted from the mold frame to the upper part of the shake-out machine by the mold extracting machine. The poured casting sand mold extracted on the shake-out machine is subjected to strong vibration action, separated into casting sand and raw material, and sent to the vibrating conveyor. In the vibration conveyor, the foundry sand adhering to the periphery of the material is subjected to a vibration action and is removed from the material. The material on the vibrating conveyor is then removed from the foundry sand by a manipulator. On the other hand, the foundry sand is transferred to the tip of the vibration conveyor and is put into the bucket container from the sand outlet.

  As described above, the shake-out machine that separates and drops the foundry sand while vibrating the material on the lattice is used for the unpacking apparatus. However, if the lattice vibration is moderate, casting sand will be easily taken out to the subsequent process due to insufficient separation of the foundry sand.On the contrary, if the lattice vibration is vigorously increased, the separation of the foundry sand becomes excessive. It becomes easy to generate dents and the material is easily caught on the lattice. As described above, the removal of the foundry sand to the subsequent process, the occurrence of dents on the material, and the catching of the material on the lattice are contradictory phenomena, and it has been difficult to solve both problems at the same time. In particular, when the shake-out machine is used for a general-purpose solution for various materials, there is a problem that the difficulty increases because the material shape, material weight, sand metal ratio, etc. vary greatly.

Japanese Utility Model Publication No. 61-117356 Japanese Patent No. 3236252 JP 2002-103020 A

  Therefore, the object of the present invention is to solve the above-mentioned conventional problems, and when carrying out a general-purpose openwork with large fluctuations in the material shape, material weight, and sand metal ratio, there is no need to carry out casting sand to the subsequent process. It is an object to provide a mold general-purpose unpacking apparatus and a general-purpose mold unpacking method using the same that can eliminate the occurrence of dents on the material and the catch of the material on the lattice of a shake-out machine.

A general-purpose unpacking device for a mold according to the present invention, which has been made to solve the above-mentioned problems, is a general-purpose unpacking device for a mold that separates and recovers a poured mold into foundry sand and raw material. A plurality of upstream shakeout machines and downstream shakeout machines are arranged in series, and one or more manipulators for taking out material from the downstream shakeout machine are arranged downstream thereof, and the upstream shakeout machine is conveyed. The upstream part of the surface is a smooth surface that prevents the occurrence of dents on the material and the material is caught, and the downstream part of the conveying surface of the upstream shake-out machine has a lattice shape or punching holes, and the smooth surface depends on the material. provided for the purpose of adjusting the area, the detachable adjustment iron plate having caught no smooth surface of the material, transportable downstream shake-out machine The surface and with lattice or punching holes, is characterized in that the pay downstream shake-out machine in the operating range of the manipulator.

In addition, a conveying apparatus can be arrange | positioned between an upstream shakeout machine and a downstream shakeout machine. Further, a cylinder gate can be provided at the front end of the downstream shake-out machine on the conveying surface, and the casting sand can be extracted from the conveying surface when the cylinder gate is closed, and the casting burr and the plan can be discharged to a subsequent process when the cylinder gate is opened. In addition, on the downstream part of the upstream shakeout machine and the downstream shakeout machine conveyance surface, a partition that separates the center side and the side plate side is erected, and the conveyance surface on the center side has a smooth surface that does not catch material. An iron plate is attached, and the conveyance surface on the side plate side can be a lattice shape or punched holes.

  Further, the general-purpose mold opening method of the present invention for solving the above-described problems is that the dents are generated on the material and the material is transported in the upstream portion of the upstream shakeout machine having the transport surface as a smooth surface. The cast mold is discharged at the downstream part of the upstream shakeout machine and the downstream shakeout machine with the grid surface or punched holes on the transport surface after separating the poured mold into the casting sand and raw material while preventing catching The material is taken out from the downstream shake-out machine by a manipulator.

  When the manipulator takes out the material, it is preferable to stop the vibration of the downstream shakeout machine. Further, with the shakeout machine as an inverter control, the frequency change of the inverter control and the start and stop of the downstream shakeout machine can be operated inside the manipulator. Furthermore, the frequency of inverter control can be set in accordance with the molding conditions set in the mold molding machine to be released.

  According to the present invention, since the upstream portion of the conveying surface of the upstream shakeout machine is a smooth surface that prevents the occurrence of dents and catches on the material, while preventing the occurrence of dents and catches on the material The foundry sand and the material can be separated. The separated foundry sand can be dropped and separated from the downstream part of the upstream shake-out machine and the conveying surface with the lattice or punching holes of the downstream shake-out machine. The material is removed from the downstream shakeout machine by a manipulator. If the material gets caught on the grid of the downstream shakeout machine, it will be taken out by the manipulator, so there is no problem. Further, since the adjustment iron plate can be attached to and detached from the downstream portion of the conveying surface of the upstream shakeout machine, the foundry sand can be discharged by adjusting the frequency of catching the material on the conveying surface.

  Further, when the manipulator takes out the material, the material and the manipulator can be protected by stopping the vibration of the downstream shake-out machine.

  Moreover, workability | operativity can be improved by operating the shakeout machine as inverter control and operating the frequency change of inverter control, and starting and stopping of a downstream shakeout machine inside a manipulator. Further, by setting the inverter control frequency in accordance with the molding conditions set in the mold making machine to be unframed, it is possible to open the frame corresponding to the material in accordance with the molding conditions.

It is a top view of a general-purpose frame opening apparatus provided with two shakeout machines and one manipulator. It is an AA arrow line view of FIG. It is a top view of the general-purpose unpacking apparatus provided with two shakeout machines, one manipulator, and a conveyance trolley. It is a BB arrow line view of FIG. It is a top view of a general-purpose unpacking device provided with three shakeout machines and two manipulators. It is CC arrow line view of FIG. FIG. 6 is a DD arrow view of FIG. 5. It is a top view of the conveyance surface of the shakeout machine formed in the grid | lattice form. It is sectional drawing of the conveyance surface of the shakeout machine formed in the grid | lattice form. It is a top view of the conveyance surface of the shakeout machine which provided the punching hole. It is sectional drawing which shows the structure which affixed the iron plate on the grid | lattice-like conveyance surface. It is a top view of the shakeout machine to which the screen was attached. It is sectional drawing of the shakeout machine to which the screen was attached. It is sectional drawing explaining the discharge | emission condition of the foundry sand from a partition. It is sectional drawing explaining the discharge | emission condition of the foundry sand from a partition. It is detail drawing of the shakeout machine with which the cylinder gate is closed. It is detail drawing of the shakeout machine with which the cylinder gate is open | released. It is detail drawing of the shakeout machine with which the cylinder gate is open | released.

Hereinafter, embodiments of the present invention will be described.
FIGS. 1 and 2 are views showing a frame opening apparatus according to a first embodiment of the present invention, which includes an upstream shakeout machine 5a, a downstream shakeout machine 5b arranged in series, One manipulator 6 is provided on the downstream side. The upstream conveying surface of the upstream shake-out machine 5a is made of a steel plate 7 and is a smooth surface without catching the material. Further, the downstream part of the upstream shake-out machine 5a is formed on a conveying surface with a lattice 8a shape or punching holes 8b. An adjustment iron plate 9 for adjusting the area of the smooth surface according to the material can be attached to the downstream conveyance surface. Further, the conveying surface of the downstream shake-out machine 5b is similarly formed in a lattice 8a shape or punching holes 8b.

  8a and 8b show a conveyance surface formed in the shape of a lattice 8a, and FIG. 9 shows a conveyance surface obtained by attaching punching holes 8b to an iron plate. Side plates 30 are provided on both sides of the conveying surface to prevent the material and foundry sand from falling off. In FIG. 10, the Example of the affixing structure of the iron plate 9 for adjustment to the downstream part of the upstream shakeout machine 5a is shown. In FIG. 10, the adjustment iron plate 9 is fixed on the lattice 8 a with the countersunk bolt 18, but can be joined by spot welding. The adjustment iron plate 9 adjusts the amount of attachment depending on the situation such as catching of the material, occurrence of dents on the material, and taking-out of foundry sand to the subsequent process.

  In FIGS. 1 and 2, reference numeral 1 denotes a mold that has been poured, and includes a molding sand 2 and a material 3. The mold 1 flows downstream on the mold conveyor 21 and is conveyed to the upstream shake-out machine 5a via the mold conveyance carriage 22. Here, the foundry sand 2 and the raw material (cast product) 3 are integrally extracted from the mold by the upper mold extractor 23. The upstream shakeout machine 5a separates the foundry sand 2 and the material 3 while vibrating. Since the upstream portion is a smooth surface with the iron plate 7 attached, there is no catch of the material 3, and even if the vibration is vigorous, there is no dent on the material 3, and the foundry sand 2 flows downstream. Since the downstream portion has a lattice 8a shape or punching holes 8b and the adjustment iron plate 9 is detachable, the separated foundry sand 2 with minimum catching of the material 3 is put on the conveyor 25 from the hopper 24, It collect | recovers to the post process 4a of casting sand 2 conveyance. The material 3 is further conveyed to the downstream shake-out machine 5b, and the foundry sand 2 is further sieved off. The foundry sand 2 is conveyed on the conveyor 25 via the lattice 8a or punching holes 8b on the conveying surface of the downstream shake-out machine 5b. Thrown into the top.

  The manipulator 6 picks up the material 3 from the conveying surface of the downstream shake-out machine 5b and conveys it to the material conveyor 26. If a casting burr or the plan 12 remains, the manipulator 6 puts them into the receiving box 13. When picking up the material 3, it is preferable to stop the downstream shake-out machine 5b in order to protect the manipulator 6. This operation is preferably performed from the inside of the manipulator 6. The material 3 placed on the material conveyor 26 is sequentially conveyed and sent to the post-process 4b.

  FIGS. 3 and 4 are views showing a frame opening apparatus according to a second embodiment of the present invention, in which an upstream shakeout machine 5a, a downstream shakeout machine 5b, and one manipulator 6 are arranged in series. And a transport carriage 27. The configuration of the conveying surface is not different from that of the first embodiment. In the second embodiment, the material 3 picked up by the manipulator 6 is placed on the conveyance carriage 27 and conveyed to the material conveyor 26.

  The cylinder gate 10 is provided at the tip of the downstream shakeout machine 5b, and when the cylinder gate 10 is closed, the accumulated foundry sand can be extracted onto the conveyor 25 from the cylinder gate 10 and the clearance 29 at the tip of the shakeout machine 5b. In the case of the layout shown in FIGS. 1 and 2, the casting burr and method 12 can be discharged onto the conveyor 25 or the receiving box 13. By adopting the layouts of FIGS. 3 and 4, the end of the carriage of the conveyance carriage 27 is directly below the cylinder gate 10, so that the discharge destination of the casting burr and the plan 12 is a post-process 4 b for conveying the material 3. I can do it.

  Details of the cylinder gate 10 are shown in FIGS. 13a, 13b and 13c. The cylinder gate 10 has a structure in which the gate 20 is opened and closed by a cylinder 19. FIG. 13 a shows a state in which the gate 20 is closed. In this state, while the material 3 is being unloaded by the manipulator 6, the foundry sand 2 is squeezed out, and the foundry sand 2 is unloaded from the lattice 8a or the punching hole 8b to the subsequent step 4a. When the gate 20 is closed, a gap 29 is provided between the end of the downstream shake-out machine 5b and the foundry sand 2 can be discharged from the gap 29 to the subsequent step 4a. The cast burr and the plan 12 removed from the material 3 stay on the lattice 8a or the punching hole 8b. The accumulated casting burr or plan 12 can be carried out to the receiving box 13 or the post-process 4b by the manipulator 6.

  FIG. 13 b shows a state in which the gate 20 is opened with the post-process 4 b for the material 3. In this example, after the casting sand is carried out to the post-process 4a, the gate 20 is opened with the carriage edge of the carriage 27 arranged directly under the cylinder gate 10, and the accumulated casting burr and the plan 12 are carried out to the post-process 4b. I can do it.

  FIG. 13 c shows a state in which the gate 20 is opened without the post-process 4 b for the material 3. In this example, when the foundry sand 2 cannot be completely discharged from the lattice 8a or the punching hole 8b, the foundry sand 2 that is retained by opening the gate 20 without the end of the carriage burrs of the transport carriage 27 being disposed directly below the cylinder gate 10 is conveyed. 25 can be carried out to the post-process 4a.

  FIG. 5 shows an example in which a fixed weir 31 is provided instead of providing the cylinder gate 10 at the tip of the downstream shakeout machine 5b. It is possible to adopt a structure in which the cast burrs and the plan 12 which have been retained by damming are discharged to the receiving box 13 or the post-process 4b by the manipulator 6.

  FIGS. 5-7 is a figure which shows the open frame apparatus of the 3rd Embodiment of this invention, Comprising: Two upstream shakeout machines 5a1 and 5a2 arrange | positioned in series, the downstream shakeout machine 5b, A transport conveyor 14 serving as a transport device disposed between the upstream shakeout machine 5a2 and the downstream shakeout machine 5b, and two manipulators 6 disposed on the side of the transport conveyor 14 are provided. .

  That is, for protection of the manipulator 6 and for alternate maintenance and for securing a work space, a transport device 14 such as an apron conveyor is provided between the three shakeout machines 5a1, 5a2, 5b to secure a space. Two manipulators 6 are provided. One manipulator 6 may be used, but a plurality of manipulators 6 are preferable because the burden on the operator is reduced.

  A shaker machine 5a, 5a1, 5a2, 5b can be used as inverter control, and a setting device for changing the frequency of inverter control and a switch box for starting and stopping the downstream shakeout machine 5b can be installed inside the manipulator 6. Here, in order to link the frequency of the inverter control with the switching of the material 3 to be unframed, it can be set in advance to molding conditions set in a molding machine (not shown) for molding the mold 1. It is not always necessary to set or change the inverter control frequency inside the manipulator.

  When the material 3 is caught in a part of the downstream part of the upstream shakeout machine 5a1, 5a2 and the lattice 8a or punching hole 8b of the downstream shakeout machine 5b, the central side 15 and the side plate are placed on the troughs of the shakeout machines 5a1, 5a2, 5b. After the partition 17 separating the side 16 is raised, the center side 15 can be attached with the adjusting iron plate 9, and the side plate side 16 can be left as the lattice 8a or the punching hole 8b. 11a and 11b show an embodiment of a structure in which a partition 17 is erected and an adjustment iron plate 9 is attached to a part of the lattice 8a. The upstream portion of the partition 17 also serves as a guide for guiding the material 3 to the center side of the trough.

  12A and 12B are cross-sectional views for explaining a situation in which the foundry sand 2 is discharged from the partition 17 mounting structure. As shown in FIG. 12 a, since the material 3 is carried on the adjustment iron plate 9 on the center side 15, it is possible to prevent the material 3 from being caught and the dent from being generated on the material 3. When a large amount of staying sand 11 is carried onto the adjustment iron plate 9, as shown in FIG. 12b, it passes over the partition 17 and overflows to the side plate side 16, so that it is carried out from the lattice 8a or punching hole 8b to the subsequent step 4a. can do. By adjusting the height of the partition 17 to such an extent that the material 3 does not get over, the amount of foundry sand 2 overflowing to the side plate side 16 can be adjusted.

  As described above, according to the present invention, in the upstream portion of the upstream shakeout machine having a smooth conveying surface, the material has been poured while preventing the occurrence of dents on the material and the material being caught on the conveying surface. The casting sand is discharged into the downstream part of the upstream shakeout machine and the downstream shakeout machine with the grid or punched holes on the conveying surface, and the material is removed from the downstream shakeout machine. Since it was taken out by the manipulator, it is possible to reliably separate the foundry sand and the material and carry them out to the subsequent process even in the case of performing a general-purpose solution that has a large variation in the sand metal ratio. In addition, conflicting phenomena such as the occurrence of dents in the material, the catching of the material on the lattice, and the removal of the foundry sand to the subsequent process can be solved. For this reason, the operating rate of the casting equipment can be improved, and the worker can be freed from the work of recovering from the problem of the unraveling apparatus, which is the most severe work in the foundry.

DESCRIPTION OF SYMBOLS 1 Mold 2 Foundry sand 3 Material 4a Post process 4b Post process 5a Upstream shakeout machine 5b Downstream shakeout machine 6 Manipulator 7 Iron plate 8a Lattice 8b Punching hole 9 Adjustment iron plate 10 Cylinder gate 11 Retained foundry sand 12 Cast burr, plan 13 Box 14 Conveyor (conveyor)
15 Central side 16 Side plate side 17 Screen 18 Countersunk bolt 19 Cylinder 20 Gate 29 Clearance 31 Fixed weir

Claims (8)

A general-purpose demolition device for molds that separates and collects poured molds into foundry sand and materials,
One or more upstream shakeout machines and downstream shakeout machines are arranged in series, and one or more manipulators for taking out material from the downstream shakeout machine are arranged downstream thereof,
The upstream part of the transport surface of the upstream shakeout machine is a smooth surface that prevents dents and material catching on the material,
Adjusting the downstream portion of the conveying surface of the upstream shakeout machine to have a lattice shape or punching holes, and to adjust the area of the smooth surface according to the material, and having a smooth surface without catching the material The iron plate can be attached and detached,
A general-purpose unpacking apparatus for a mold, characterized in that the downstream shake-out machine has a grid or punched holes, and the downstream shake-out machine is within the operating range of the manipulator.   The general-purpose frame opening / disassembling apparatus according to claim 1, wherein a conveying device is disposed between the upstream shakeout machine and the downstream shakeout machine.   A cylinder gate is provided at the front end on the conveying surface of the downstream shake-out machine, the casting sand is extracted from the conveying surface when the cylinder gate is closed, and the casting burr and the plan can be discharged to a subsequent process by opening the cylinder gate. Item 2. A general-purpose unpacking device for a mold according to Item 1. On the downstream part of the upstream shakeout machine and the downstream shakeout machine transport surface, a partition that separates the center side and the side plate side is erected, and the center transport surface is affixed with an iron plate that has a smooth surface that does not catch the material. The general-purpose demolition device for a mold according to claim 1, wherein the conveying surface on the side plate side has a lattice shape or punched holes. A general-purpose unpacking method for a mold using the general-purpose unpacking device for a mold according to any one of claims 1 to 4,
In the upstream part of the upstream shakeout machine with a smooth conveying surface, the cast mold is separated into casting sand and material while preventing dents on the material and catching of the material on the conveying surface.
Discharge the foundry sand in the downstream part of the upstream shakeout machine and the downstream shakeout machine with the grid or punching holes on the conveying surface,
A general mold release method, wherein a material is taken out from a downstream shake-out machine by a manipulator.   6. The general mold releasing method according to claim 5, wherein when the material is taken out from the manipulator, the vibration of the downstream shakeout machine is stopped.   6. The method according to claim 5, wherein the shakeout machine is an inverter control, and the frequency change of the inverter control and the start / stop of the downstream shakeout machine are operated inside the manipulator.   8. The general-purpose mold opening method according to claim 7, wherein the frequency of the inverter control is set in accordance with a forming condition set in a mold making machine to be opened.

Images