JP6350244B2 - Mold separation method and apparatus - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a mold breaking method and apparatus using a shake-out machine, and in particular, a mold breaking method suitable for use in a general-purpose casting facility that performs high-mix low-volume production of castings using raw sand molds. It relates to the device.

  2. Description of the Related Art Conventionally, it has been widely practiced to use a shake-out machine to separate a poured mold into casting sand and cast casting material. However, in the mold varieties using this shakeout machine, if the grid of the shakeout machine is made finer, the casting sand is often taken out, and conversely, if the grid is made coarse, the casting material collides with the grid, resulting in dents. There is a problem that the cast material is easily caught on the lattice.

  In general-purpose casting lines, where there are many types of casting materials to be produced and the fluctuation range of material, sand metal ratio, casting amount, and cooling time is large, the adjustment element of the shakeout machine is other than the adjustment of the excitation force of the vibration motor There is only a grid filling. In the case where the adjustment cannot be performed by these means, the rotation speed of the vibration motor can be changed by inverter control so that the adjustment range can be increased. However, even if inverter control is added, since the fluctuation range of the mold variation condition is large, the present situation is that satisfactory adjustment cannot be performed.

  Therefore, in such a case, it is unavoidable to make major modifications such as changing the mounting angle of the motor, remodeling the grid, and replacing the grid. However, in a general-purpose casting line, when a casting method to be set is changed, a new problem may occur, and it often becomes an “Itachi Gokko” that repeats the problem and countermeasures.

  For this reason, there is a need for a mold dispersion apparatus using a shakeout machine that can change the mold dispersion conditions for each molding condition. In order to meet this demand, the present inventor has proposed the mold dispersion of Patent Documents 1 and 2. The device was developed first.

  The devices of Patent Documents 1 and 2 have a structure in which a lattice having a large opening is arranged on the upstream side and a lattice having a small opening is arranged on the downstream side. However, there is a problem that the casting material is likely to be caught in the change portion to the lattice having a small mesh opening.

  In addition, the position and angle of the vibration motor is set so that the vibration force is applied to the center of gravity of the trough so that the vibration trough body can vibrate in parallel, but a long trough shakeout machine is used. In this case, the center of gravity changes due to the unbalanced load of the conveyed product, and the vibration trough body behaves like a seesaw, which may hinder the mold breaking ability and the conveyance of the casting material.

  In particular, the mold breaking apparatus of Patent Document 1 has a vibration chute disposed on the upper part of the shakeout machine, so that the transfer drop becomes slightly large, and there is a possibility of occurrence of cracks and dents in the casting material. Further, the mold separating apparatus of Patent Document 1 includes steam because of a layout in which a traveling carriage with a tilting chute is arranged on the upper part of a shakeout machine in which dust containing steam rises by hot air by crushing a poured mold. There was a risk that the adhesion of dust and condensation would cause problems due to sand adhesion and corrosion of the equipment placed at the top of the shakeout machine.

  Moreover, since the mold | balancing apparatus of patent document 2 is a structure which traverses the shakeout machine which is a vibration machine, there existed a problem that an installation became heavy.

Japanese Patent No. 3139620 Japanese Patent No. 3139621

  Accordingly, the object of the present invention is to solve the above-mentioned conventional problems, and is applicable to a general-purpose casting line in which the adjustment range of the mold dispersion condition is large and the fluctuation range of the material, the sand metal ratio, the casting amount and the cooling time is large. It is to provide a brushing method and apparatus.

In order to solve the above problems, the mold separation method of the present invention includes a plurality of shake-out machines arranged in series, and each mold model is transferred to a shake-out machine for casting, pouring, and demolding. A mold dispersion method in which a mold containing a cast material after pouring is poured into a predetermined position of the shakeout machine by a mold pusher on the basis of molding condition data in which the casting position is registered , and the molds are arranged in series. When the next mold is put on the downstream side of the shakeout machine after being put on the upstream side, the throwing is delayed by a timer .

In the present invention, loading position to shake out machine to be registered in granulated form condition data, can be configurable two patterns or more patterns. Further, a mold can be put into the shakeout machine using a mold pusher placed on a carriage .

In order to solve the above-described problems, the mold separating apparatus according to the present invention includes a plurality of shakeout machines arranged in series, and a shakeout machine for each mold model for casting, pouring, and demolding molds. A mold pusher that inserts a mold containing a cast material after pouring into a predetermined position of the shakeout machine based on molding condition data in which the position of injection into the mold is registered, and an upstream of the shakeout machine in which the molds are arranged in series When the next mold is put on the downstream side after being put on the side, a timer for delaying the putting is provided.

In this invention, a shakeout machine having a fine lattice may be arranged in series downstream of a shakeout machine having a coarse lattice, or a plurality of shakeout machines having the same lattice roughness may be arranged in series. it can.

  The first conveying device, the second conveying device adjacent to the first conveying device, and the casting material are picked up from the first conveying device further downstream of the shakeout machines arranged in series. A manipulator to be transferred to the transfer device can be arranged, and further, a second shakeout machine for crushing the mold is arranged further downstream of the first transfer device, and below the second shakeout machine. A conveyor for collecting sand can be arranged.

  According to the present invention, since the mold is put into the predetermined position of the shakeout machine by the mold pusher based on the molding condition data in which the position to be put into the shakeout machine is registered for each mold model, there are many types of casting materials to be produced. Also, a mold casting method and apparatus having a large adjustment width can be provided for a general-purpose casting line having a large fluctuation range of material, sand metal ratio, casting amount, and cooling time.

  Further, in the present invention, since a plurality of shakeout machines are used, even if a lattice having different openings is used, the casting material is not caught at the changing portion of the opening. In addition, since a plurality of shake-out machines are used in the present invention, the length of each shake-out machine can be shortened, and the vibration trough body behaves like a seesaw even if an unbalanced load is generated on the conveyed product. Not shown, does not hinder the transfer of the casting material.

  Further, since the mold is inserted from the side surface of the shakeout machine by the mold pusher, the transfer drop can be reduced, and the casting material can be prevented from cracking and dents. Further, in the present invention, since it is not necessary to place an apparatus on the upper part of the shakeout machine, it is possible to prevent the occurrence of corrosion due to the adhesion of dust containing vapor or condensation. Furthermore, in the present invention, it is not necessary to traverse the shakeout machine that is a vibration machine, so that the equipment does not become heavy and long.

It is a top view which shows 1st Embodiment. It is an AA arrow line view of FIG. It is a BB arrow line view of FIG. It is CC arrow line view of FIG. It is a DD arrow line view of FIG. It is an EE arrow line view of FIG. It is a top view which shows 2nd Embodiment. It is an AA arrow line view of FIG. It is the DD arrow line view of FIG. It is a top view which shows a reference form .

  Embodiments of the present invention will be described below. In each of the embodiments described below, the number of shakeout machines is two, but may be three or more.

  1 to 6 show a first embodiment of the present invention. In FIG. 1, 4 is an open frame line, 8 is a first mold pusher, 14 a and 14 b are two shakers arranged in series. Out machine. As shown in FIGS. 2 and 3, the unpacking line 4 is a line for carrying the metal frame 2 containing the poured mold 1 on the surface plate carriage 3.

  A mold lifting device 7 is provided between the unpacking line 4 and the first mold pusher 8. The mold pulling device 7 includes a carriage 5 for pulling out a metal frame 2 containing the mold 1 at a right angle from a disassembly line 4 and a punch-up cylinder 6 for extracting the mold 1 upward from the metal frame 2. The mold 1 transported by the frame line 4 is extracted from the metal frame 2 and lifted up to the first mold pusher 8.

  The first mold pusher 8 is composed of a cart 10 with a mold extrusion plate that is moved laterally by a lateral movement means 9 such as a roller chain or a wire. The lateral movement means 9 stops the casting mold at the designated position of the shakeout machines arranged in series based on the molding condition data in which the loading position to the shaking out machine is registered for each casting mold model. As shown in FIGS. 1 and 2, a carriage 13 that moves in parallel with the first mold pusher 8 is provided, and a second mold pusher 12 having a cylinder 11 is mounted on the carriage 13. The mold 1 stopped at a predetermined position can be extruded from the first mold pusher 8 to a predetermined position on the shake-out machines 14a and 14b.

  For this reason, the mold 1 placed on the surface plate carriage 3 and conveyed on the unpacking line 4 is taken out by the mold removal device 7 to the first mold pusher 8 and is stored in the molding condition data stored in the storage device. Based on this, it stops at a position corresponding to a predetermined position on the two shakeout machines 14a and 14b arranged in series. The carriage 13 moves and stops following the first mold pusher 8, and the second mold pusher 12 pushes the mold 1 from the mold pusher 8 into the trough length range of the shakeout machines 14a and 14b at a right angle. put out. This molding condition data is data obtained by registering the input position to the shakeout machine for each mold model with respect to the mold to be molded, poured, and unframed.

  Since the transfer position of the mold onto the shakeout machines 14a and 14b by the second mold pusher 12 can be set for each mold model, the adjustment range of the mold dispersion condition differs greatly, and the material, sand, The present invention can also be applied to a general-purpose casting line having a large fluctuation range of metal ratio, casting amount, and cooling time. In addition, the setting of the casting position to be registered in the molding conditions can be set to two patterns, for example, the current day balance and the next day balance.

  The two shakeout machines 14a and 14b arranged in series can have a lattice with a large opening on the upstream side and a lattice with a small opening on the downstream side. However, the size of the opening is not an essential requirement of the present invention, and the opening can be the same. The mold 1 is cast on the shakeout machines 14a and 14b, and the casting material 17 is separated from the casting sand.

  When the next mold 1 is put into the downstream shake-out machine 14b after the mold 1 is put into the upstream shake-out machine 14a, a timer is used to prevent mutual buffering. It is preferable to delay the charging.

  As shown in FIG. 1, a first conveying device 15 such as an apron conveyor is disposed downstream of the shakeout machine 14 b and conveys the casting material 17 in the direction of the arrow. A manipulator 16 or a plurality of manipulators 16 are arranged on the side of the first conveying device 15 to pick up the casting material 17 on the first conveying device 15 and to the second conveying device 18 such as a pallet conveyor. Transfer.

  A second shake-out machine 19 is disposed downstream of the first conveying device 15 to crush the mold after the casting material 17 has been collected, and the downstream belt shown in FIGS. 2 and 3. It transfers to the conveyor 20 and collect | recovers to the sand processing apparatus which is not shown in figure.

  The first embodiment described above is employed when the casting material 17 to be produced is a high-mix low-volume production, and the mold variation condition varies greatly depending on the casting material ordered.

7 to 9 show a second embodiment of the present invention.
In the first embodiment described above, the second mold pusher 12 is mounted on the carriage 13 to be movable, and can be moved to any position within the trough length range on the two shakeout machines 14a and 14b arranged in series. For example, the mold 1 can be introduced by the cylinder 11. However, in the second embodiment, a plurality of second mold pushers 12 are provided and installed at a plurality of fixed positions. Therefore, when two second mold pushers 12 are provided, the mold 1 is pushed onto the shakeout machines 14a and 14b at any position based on the molding condition data stored in the storage device.

  The second embodiment is employed when the cast material 17 that has been ordered can be roughly divided into, for example, three types such as a cylinder block, a cylinder head, and a suspension part. In this case, the second mold pusher 12 may be two cylinder blocks and cylinder heads and suspension parts, or three cylinder block, cylinder head and suspension parts. it can.

FIG. 10 shows a reference embodiment of the present invention.
In this reference form , two shakeout machines 14a and 14b are arranged in parallel at a distance, and the second mold pusher 12 is fixedly arranged at the end position of each of the shakeout machines 14a and 14b. is there. The mold 1 is moved to the position of the second mold pusher 12 by the carriage 10 with the mold extrusion plate of the first mold pusher 8 and is pushed out by the second mold pusher 12 to the ends of the shakeout machines 14a and 14b.

  A first conveying device 15 such as an apron conveyor is disposed at the outlet of the shakeout machines 14a and 14b arranged in parallel, and conveys the casting material 17 in the direction of the arrow. On the first conveying device 15, The molds merge. At this time, in order to prevent the molds from interfering with each other, control is performed to delay the casting of the mold into the shakeout machine 14b on the downstream side by a timer.

Similar to the second embodiment , this reference form is employed when the casting material 17 can be roughly divided into, for example, three types such as a cylinder block, a cylinder head, and a suspension part. This point is the same as in the second embodiment, but suitable for a case in which the lattice shape of the shakeout machines 14a and 14b for dropping the sand of each casting material 17 is made to be completely different dimensional shapes (for example, lattice and punching metal). Yes.

  As described above, according to the present invention, there are many types of casting materials to be produced, and there is an adjustment range that can be used for general-purpose casting lines that have a large fluctuation range of material, sand metal ratio, casting amount, and cooling time. A large mold brushing method and apparatus can be provided.

DESCRIPTION OF SYMBOLS 1 Mold 2 Gold frame 3 Surface plate cart 4 Unframed line 5 Cart 6 Punch-up cylinder 7 Mold removal device 8 First mold pusher 9 Lateral moving means 10 Cart with mold extrusion plate 11 Cylinder 12 Second mold pusher 13 Cart 14a shake-out machine 14b shake-out machine 15 first transport device 16 manipulator 17 casting material 18 second transport device 19 second shake-out machine 20 belt conveyor

Claims (8)

Casting material after pouring based on molding condition data for multiple molds that are arranged in series, and for which molds, pouring, and unpacking are registered for each mold model. Is a mold dispersion method in which a mold pusher is placed in a predetermined position of the shake-out machine, and after the mold is placed on the upstream side of the shake-out machines arranged in series, When casting a mold, the casting method is characterized in that the loading is delayed by a timer . On position to shake out machine to be registered in the molding condition data, 2 pattern or template Balazs method of claim 1, wherein a further pattern is settable. 2. The mold breaking method according to claim 1, wherein a mold is put into the shake-out machine using a mold pusher placed on a carriage . Casting after pouring on the basis of molding condition data in which the pouring position into the shakeout machine is registered for each mold model for multiple shakeout machines arranged in series and molds for casting, pouring, and unpacking A mold pusher that puts a mold containing a material into a predetermined position of the shakeout machine, and a mold that is put in the upstream side of the shakeout machine arranged in series, and then the next mold is put in the downstream side. A mold separating apparatus comprising a timer for delaying the charging. 5. The mold separating apparatus according to claim 4, wherein a shakeout machine having a fine lattice is arranged in series downstream of the shakeout machine having a coarse lattice. 5. The mold separating apparatus according to claim 4 , wherein a plurality of shakeout machines having the same lattice roughness are arranged in series. A first conveying device, a second conveying device adjacent to the first conveying device, and a casting material picked up from the first conveying device further downstream of the shakeout machines arranged in series. The mold brushing device according to claim 4 , wherein a manipulator to be transferred to is disposed. A second shakeout machine for crushing the mold is arranged further downstream of the first transfer device, and a conveyor for collecting sand is arranged below the second shakeout machine. The mold separating apparatus according to claim 7 .

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