JP2008264867A - Foundry equipment for casting cast product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide foundry equipment for casting a cast product, that attains the enhancement of production efficiency of the cast product and the cost reduction of the cast product. <P>SOLUTION: The foundry equipment to be used for a casting method for casting the cast product through superimposing of an upper mold with a flask on a lower mold with a flask in which molten metal of a prescribed amount necessary for casting the cast product is poured, is provided with; a mold making unit for making the lower mold and the upper mold in the lower molding flask and the upper molding flask, respectively; a lower mold conveying line for conveying the lower mold with the flask made by this mold making unit; an upper mold conveying line for conveying the upper mold with the flask made by the molding unit; a molten metal pouring machine disposed along the lower mold conveying line; and a pressing device for superimposing the upper mold with the flask on the upper mold conveying line onto the lower mold with the flask into which the molten metal is poured by the molten metal pouring machine at a superimposing station. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a casting facility for cast products. More specifically, production of a cast product by a casting method for casting a cast product by superimposing a frame upper mold on a frame lower mold into which a predetermined amount of molten metal necessary for casting the cast product is injected. The present invention relates to a casting facility capable of improving efficiency and reducing production costs.

  Conventionally, as a method of increasing the yield of castings, it is a main mold formed by various mold making methods, and has only the cavities necessary for casting product casting without having the cavities necessary to achieve the casting method. Cavities for casting castings can be defined by the lower mold and the main mold formed by various mold molding methods, and without the cavity required to achieve the casting method. A casting method using an upper mold having a protruding portion, wherein a molten metal in an amount necessary for casting only the casting product is injected into a cavity of the lower mold, and then the protrusion of the upper mold A casting method in which the upper mold is overlaid on the lower mold so as to define a cavity necessary for casting only the casting product by allowing a portion to enter the cavity of the molten metal injection (Sand-pressing casting process) has been proposed (see Patent Document 1).

  In this casting method, for example, as shown in FIGS. 28 to 29, the upper mold 501 with a frame and the lower mold 502 with a frame are alternately conveyed on the same conveying line 503 in the arrow X direction. A press device 504 and a hot water pouring machine 505 are arranged along and opposite to the transfer line 503. The press device 504 moves forward and backward in the direction of the arrow Y1 on the transport line 503 and out of the transport line 503, and the pouring machine 505 moves in the direction of the arrow Y2 so as to move forward and backward.

JP 2005-52871 A

However, since the press device 504 and the pouring machine 505 are opposed to each other, the upper mold 501 is lifted from the conveying line 503 and once separated from the conveying line 503, the pouring machine 505 moves to the conveying line 503. To do. Then, after the pouring machine 505 pours into the lower mold 502, the pouring machine 505 moves away from the transfer line 503, the press device 504 moves on the transfer line 503, and the upper mold 501 overlaps the lower mold 502. And pressed. Note that the upper mold 501 and the lower mold 502 overlapped at this time are referred to as upper and lower molds 506. After the upper and lower molds 506 are transported, the hot water pouring machine 505 is on standby from the transport line 503 until the next upper mold 501 is lifted from the transport line 503 and is once separated from the transport line 503.
Therefore, the pouring machine 505 moves to the transfer line 503 until the next upper mold 501 is separated from the transfer line 503 after pouring, and cannot pour into the next lower mold 502. There is a problem that it is difficult to improve production efficiency.

  Also, so that the press device 504 and the pouring machine 505 do not interfere with each other, the pouring machine 505 is retracted immediately after pouring, and the upper and lower molds 506 that have been pressed are conveyed from the front of the pouring machine 505, and the next upper After the mold 501 is separated from the transfer line 503, an operation of advancing the pouring machine 505 is performed. Since the pouring of the pouring machine 505 employs a ladle tilting method, it is necessary to increase the return angle of the ladle 507 after pouring in order to move the pouring machine 505. As a result, when pouring into the next lower mold 502, there is also a problem that it takes a long time until the molten metal is poured from the ladle port 507a. The ratio of the melting and pouring process in the casting product production cost is large, and it is important to improve the operation rate of the pouring machine in order to reduce the production cost of the casting product.

  SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a casting product casting facility that can improve the production efficiency of a cast product and reduce the production cost of the cast product.

The casting product casting apparatus of the present invention is a casting product for casting a cast product by superimposing a frame upper mold on a frame lower mold into which a predetermined amount of molten metal required for casting the casting product is injected. Casting equipment used in the method, a molding apparatus for molding the lower mold and the upper mold on the lower casting frame and the upper casting frame, a lower mold conveying line for conveying the lower mold with a frame molded by the molding apparatus, An upper mold conveying line for conveying an upper mold with a frame molded by the molding apparatus, a pouring machine disposed along the lower mold conveying line, and a lower mold with a frame poured by the pouring machine. And a pressing device that superimposes the upper mold with a frame on the upper mold conveying line at a station.
It is preferable that the hot water pouring machine is disposed along the lower mold conveying line at an upstream position from the superposition station.
It is preferable that the pressing device includes a traveling carriage that moves the upper mold with a frame from the upper mold conveyance line onto the lower mold with a frame in a lower mold conveyance line.
The upper mold conveyance line is juxtaposed on the lower mold conveyance line, a conveyance path at the conveyance end of the upper mold conveyance line is movably provided, and the press device is disposed on the movable conveyance path. It is preferable.
The pressing device has an elevating means having a pressure plate for pressing the upper mold with the frame superimposed on the lower mold with the frame onto the lower mold with the frame, and a fixing means for fixing the upper mold with the frame to the pressure plate Are preferably provided.
It is preferable that a core set station for joining a core to the upper mold of the upper mold with a frame is disposed in the upper mold conveying line.
Further, the lower mold conveying line and the upper mold conveying line each have a circular shape, and the circular lower mold conveying line and the circular upper mold conveying line are arranged so as to intersect at the superposition station. It is preferable that the molding apparatus is disposed on each of the lower mold conveying line and the upper mold conveying line, and a pouring station is disposed on the lower mold conveying line.
A lower mold rotating device that is connected to the lower casting frame in the circular lower mold conveying line to convey the lower mold with a frame, and a frame that is connected to the upper casting frame in the circular upper mold conveying line. It is preferable that an upper mold rotating device for conveying the upper mold is disposed.
The lower mold rotating device and the upper mold rotating device each include a rotating shaft, a driving unit that allows the rotating shaft to rotate freely, and a connector disposed around the rotating shaft, and the pressing device includes the upper rotating device. It is preferable that it is connected to the coupler of the mold rotating device.
Furthermore, it is preferable that a core setting station for joining a core to the upper mold of the upper mold with a frame is disposed in the circular upper mold transfer line.

According to the present invention, immediately after pouring into the lower mold with the frame, the lower mold can be moved from the front of the pouring machine to the superposition station of the press device, and the upper mold with the frame can be lowered and pressed. . In front of this pouring machine, after the lower mold with frame after pouring moves, the next lower mold with frame moves, so the stop time of the pouring machine is only the transportation time of the lower mold. Become. Thereby, the production efficiency of cast products can be improved.
In addition, since it is not necessary to move the pouring machine back and forth toward the lower mold with the frame, the tilting return angle of the ladle of the pouring machine can be minimized, and the pouring waiting time is only the transfer time of the lower mold. Therefore, the cycle time is reduced to about ½, and the operating rate of the pouring machine is improved. For this reason, the production cost of the cast product can be reduced.
Further, since the waiting time of the pouring machine is reduced, the decrease in the molten metal temperature (molten metal temperature) in the ladle is reduced, so that the amount of reaction products generated on the surface of the molten metal can be reduced. .

The present invention relates to a casting facility used in a casting method for casting a cast product by superimposing a frame upper mold on a frame lower mold into which a predetermined amount of molten metal necessary for casting the cast product is poured. It is. Then, after superposing the upper mold with the frame on the upper mold conveying line on the lower mold with the frame poured by the pouring machine arranged along the lower mold conveying line at the station, press molding is performed. Do. In the present invention, by adopting a method of moving the poured lower mold with the frame without moving the pouring machine, the production efficiency of the casting product is improved and the operation rate of the pouring machine is improved. Reduce product production costs.
The lower mold conveying line and the upper mold conveying line can be arranged in parallel in the horizontal direction, in parallel in the vertical direction, or in a circular shape (closed loop shape).
The lower mold and the upper mold can be appropriately molded using various mold molding methods such as a green mold, a shell mold, a cold box mold, and a self-hardening mold. In the present invention, the core may be disposed in the upper mold or the lower mold. The mold of the present invention includes a porous mold. Furthermore, the mold molding method is not limited to squeeze, blow squeeze, air pressure molding method, or a combination thereof, but can also be a molding method such as cutting or pouring. In addition, the said casting product removed casting plans, such as a sprue system, such as a pouring gate, a runway, and a dam, a pouring system, raising, degassing, etc. from the general casting raw material taken out from the casting_mold | template after an open frame, for example. It is a thing that is attached to the machine as a final part or sold separately, such as a circular brake drum or a square case. The molten metal refers to a material in which iron or non-ferrous metal is dissolved and can be injected into the lower mold.

  Hereinafter, the casting equipment of the present invention will be described with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the casting equipment according to the embodiment of the present invention includes a lower casting frame F1a on the molding line L, a lower mold F1b and an upper casting mold F2b on the molding line S at the molding station S. A molding apparatus M for molding, a lower mold conveying line L1 for conveying a lower mold F1 with a frame in which a lower mold F1b is formed on a lower casting frame F1a in an arrow X1 direction, and an upper casting frame overlaid on the lower mold F1 with a frame An upper mold conveying line L2 for conveying an upper mold F2 with a frame in which an upper mold F2b is formed on F2a in the direction of arrow X2, a pouring machine A arranged along the lower mold conveying line L1, and the pouring machine A press apparatus B that superimposes the upper mold F2 with the frame on the upper mold transfer line L2 on the lower mold F1 poured by A and superimposes it at the station S1.

  In this embodiment, since the molding apparatus M is a single molding apparatus that alternately molds the lower mold F1b and the upper mold F2b, the reversing apparatus M1 that reverses the framed lower mold F1 to the molding line L is provided. is set up. Two molding apparatuses M can be installed to mold the lower mold F1b and the upper mold F2b, respectively. When installing two molding apparatuses, the structure which branches a molding line can be omitted.

The pouring machine A is a ladle tilting type pouring machine, and is arranged along the lower mold conveying line L1 upstream from the superposition station S1 for superposing the upper mold F2 on the lower mold F1. Has been.
Further, the lower mold conveying line L1 and the upper mold conveying line L2 branch from the molding line L on which the molding apparatus M is arranged via a traverser mechanism having a traverser C that reciprocates on the rail R by, for example, chain drive. Are arranged in parallel.

  The lower mold F1 with frame and the upper mold F2 with frame are placed on the traverser C alternately by operating the pusher cylinder Da and the cushion cylinder Db, and at the conveyance entrances of the lower mold conveyance line L1 and the upper mold conveyance line L2. After the movement, the lower mold conveying line L1 and the upper mold conveying line are moved by the pusher cylinders D1a and D2a and the cushion cylinders D1b and D2b disposed at the conveying entrance and the conveying end of the lower mold conveying line L1 and the upper mold conveying line L2. One by one is loaded into L2.

  Under the frame-mounted lower mold F1 carried into the lower mold conveying line L1, a surface plate E with a roller removed by a lifting lifter (not shown) provided in a surface plate removing station S2 of the cooling line L3, After being placed on the traverser C1 and moved to the surface plate set station S3, it is placed (set) by a lifter (not shown) provided in the surface plate set station S3. Thereafter, the lower mold F1 with the frame is placed on the surface plate E and conveyed. The framed lower mold F1 placed on the surface plate is moved to the superposition station S1 on the lower mold transfer line L1 after pouring. Then, the upper mold F2 with frame fixed to the pressing device B is moved in the Y direction and overlapped with the lower mold F1 with frame to complete the press. The upper and lower molds F in the pressed state are placed on the traverser C2 by operating the pusher cylinder D1a and the cushion cylinder D1b, and moved to the entrance of the cooling line L3.

And it is transferred to the cooling line L3 by the pusher cylinder D3a and the cushion cylinder D3b. Next, after removing the surface plate E on which the upper and lower molds F are placed, the mold FF extracted from the upper and lower casting frames F1a and F2a by the mold separating device G is transferred to the cooling line L4. After the upper and lower casting frames F1a and F2a are placed on the traverser C3, the upper casting frame F2a clamped by the lifting clamp member (not shown) of the frame separating device H is lifted, and the pusher cylinder D4a and the cushion cylinder D4b The lower casting frame F1a is transferred to the frame circulation line L5. Next, after lowering the upper casting frame F2a clamped by the frame separating device H, the clamp is released, and the upper casting frame F1a is transferred to the frame circulation line L5 by the pusher cylinder D4a and the cushion cylinder D4b. Thus, the sequentially separated lower casting frame F1a and upper casting frame F2a are placed on the traverser C4 and then transferred to the molding line L.
Hereinafter, the lower mold F1 with frame and the upper mold F2 with frame are simply referred to as a lower mold F1 and an upper mold F2 unless otherwise distinguished.

  As shown in FIGS. 2 to 3, the pressing device B is connected to a traveling carriage 1 that reciprocates in the direction of the arrow Y so that it can move between the lower mold conveying line L <b> 1 and the upper mold conveying line L <b> 2. Movable frame 2, elevating means 3 provided on movable frame 2, pressure plate 4 connected to tip 3 b of rod 3 a of elevating means 3, and guide rods standing at the four corners of pressure plate 4 5, the upper mold F2 is supported from two opposite sides of the pressure plate 4, for example, four fixing means 6 and the upper mold F2 superimposed on the lower mold F1 are melted after pouring A detecting means 9 for detecting a pressure applied from the metal 7 and the lower mold F1 (a pressure received from the molten metal 7 poured into the recess 8 of the lower mold F1 and a parting surface of the upper and lower molds), and a control means 10; I have. In the present embodiment, the guide rods 5 are erected at the four corners of the pressure plate 4, but in the present invention, the guide rod 5 is not limited to this. It can also be erected.

The lifting means 3 is not particularly limited in the present invention as long as the rod 3a can be lifted and lowered by an electric type, a hydraulic type or a pneumatic type. In the embodiment, the position and speed can be controlled with high accuracy. An electric servo cylinder is used. This electric servo cylinder incorporates a screw mechanism, a drive motor, a rotary encoder as a position detector, and the like. Instead of the electric servo cylinder capable of controlling the position and speed, an electric servo cylinder capable of controlling the speed and a linear scale can be used for detecting the position and controlling the positioning.
The fixing means 6 is not particularly limited as long as it can support the upper mold F2 on the pressure plate 4. For example, a driving mechanism such as an air cylinder and the operation of the driving mechanism are used. It can comprise a crank member that rotates or expands and contracts. Alternatively, a support structure using an electromagnetic force or a support structure using an attractive force can be used.
The detecting means 9 is not particularly limited as long as it has a function of detecting the pressure applied to the upper mold F2 from the molten metal 7 and the lower mold F1. Can be selected. In the present embodiment, since an electric servo cylinder is used as the elevating means 3, a load cell provided at the rod tip 3b of the elevating means 3 is selected.
Further, the control means 10 includes an operation circuit for reciprocating movement of the traveling carriage, an ascending / descending speed as an elevating operation of the elevating means 3, an operation circuit for controlling stop, an operation circuit for the fixing means 6, and these operation circuits It is comprised from the memory etc. which memorize | store the information etc. which are previously input, etc.

  Hereinafter, the casting process of the casting equipment in the present embodiment will be described. First, as shown in FIGS. 3 to 4, after the upper mold F <b> 2 is formed, the upper mold F <b> 2 in an inverted state that has been transported by the transport conveyor of the upper mold transport line L <b> 2, for example, the roller conveyor 51, After the rod 3a of the lifting / lowering means 3 in the pressing apparatus B waiting on L2 is extended, the pressure plate 4 is lowered and supported on the pressure plate 4 by the fixing means 6, and then the rod 3a is contracted to operate the upper type conveying line. It advances from above L2 and moves above the superposition station S1 of the lower mold transfer line L1 to stand by. In addition, after the lower mold F1 is formed, the lower mold F1 is conveyed by the roller conveyor 52 of the lower mold conveying line L1, and then the lower mold F1 is placed, for example, at the upstream position of the superposition station S1. The rod of the positioning cylinder 54 is inserted through the openings formed at the four corners of the board E, and fixed to the pouring position.

  Next, as shown in FIG. 5, the ladle 55 of the pouring machine A is tilted to pour a predetermined amount of molten metal 7 into the recess 8 of the lower mold F1 with respect to the cavity volume.

  Next, as shown in FIG. 3 and FIGS. 6 to 7, as soon as pouring is completed, the locking of the positioning cylinder 54 is released, the lower mold F1 is superposed, moved above the station S1, and waits. After being conveyed downward, it is transferred onto the rail 53 installed at the lower portion, and then the rod 3a of the lifting means 3 is extended to overlap the upper mold F2 with the lower mold F1. At this time, since the lower mold F1 after pouring is conveyed in front of the pouring machine A and the next lower mold F1 is immediately conveyed, the ladle 55 starts to tilt. The pressing device B stops the lowering of the upper mold F2 at a position where the predetermined pressure is reached and the mold is not pushed too much (press completion position).

  Next, as shown in FIG. 8, while pouring hot water into the lower mold F1, the fixed support of the upper mold F2 is released after a predetermined time has elapsed, and the pressing operation is completed. And while raising the rod 3a of the press apparatus B, the casting_mold | template F after completion of a press is conveyed. Then, as shown in FIG. 9, before the poured lower mold F1 is conveyed, the press apparatus B supports the next upper mold F2 from the upper mold conveyance line L2 and immediately holds the upper mold F2. It waits on the superposition station S1 so that it can be ready for pressing.

In this embodiment, immediately after pouring the lower mold, the lower mold is moved from the front of the pouring machine to the superposition station of the press device, and the upper mold that has been waiting at the upper side is lowered and pressed. Can do. For this reason, the stop time of a pouring machine can be made into the conveyance time of a lower mold. Thereby, the production efficiency of cast products can be improved.
In addition, when pouring, the pouring machine does not move back and forth toward the lower mold, so the tilting return angle of the ladle of the pouring machine can be minimized, and the waiting time for pouring is set as the transfer time of the lower mold. Can do.
Furthermore, since the waiting time of the pouring machine is reduced, the decrease in the molten metal temperature (molten metal temperature) in the ladle is reduced, so that the amount of reaction products generated on the surface of the molten metal can be reduced. .

  In the present embodiment, the upper mold conveyance line is arranged in parallel with the lower mold conveyance line. However, in the present invention, the upper mold conveyance line is not limited to this, and the upper mold conveyance line is used as the lower mold conveyance line. It can be arranged above the line. For example, as shown in FIG. 10, the roller conveyor 61 of the upper mold conveyance line L2 disposed above the lower mold conveyance line L1 is composed of a main conveyor 61a and a conveyance path 61b at the end of conveyance. This conveyance path 61b is slidably provided. In such an embodiment, the press device B1 is disposed on the movable conveyance path 61b. Then, as shown in FIG. 11, after the upper mold F2 on the transport path 61b is fixed by the fixing means of the press device B1, the transport path 61b is moved. Next, the press work can be completed by superimposing on the poured lower mold F1 that has been transferred to the superposition station S1 of the lower mold transfer line L1. As said press apparatus B1, the raising / lowering means and fixing means of said press apparatus B can be used.

  Further, in the present embodiment, as shown in FIG. 3, the bulging portion 11 is integrally formed in the upper mold F2, but the present invention is not limited to this. The bulging portion 11 can be separately molded by a core molding apparatus. As shown in FIG. 1, the bulging portion 11 as a core can be joined to the upper mold at the core setting station S4.

  Next, a casting facility according to another embodiment of the present invention will be described. 12-13, in this Embodiment, the lower mold | type conveyance line L1 and the upper mold | type conveyance line L2 are exhibiting circular shape, respectively. The circular lower mold transfer line L1 and the circular upper mold transfer line L2 are arranged so as to intersect vertically in the superposition station S1. In FIG. 12, symbol Z indicates the rotation direction in which the lower casting frame F1a, the lower mold F1 with frame, the upper casting frame F2a, and the upper mold F2 with frame are conveyed. In FIG. 12, the code | symbol 303 is a conveyance conveyor of the casting_mold | template FF mentioned later.

  The lower mold conveying line L1 is provided with a lower mold making station SS2a in which a lower mold making apparatus 101 is arranged as shown in FIGS. 12 and 14, and a pouring machine A is arranged as shown in FIG. A hot water pouring station SS3 is arranged. The pouring machine A is disposed along the lower mold transfer line L1.

In the present embodiment, as shown in FIGS. 12 to 13, a lower mold rotating device 102 that conveys the frame-mounted lower mold F <b> 1 is disposed in the vertical direction of the central portion of the lower mold conveyance line L <b> 1. The lower mold rotating device 102 includes a rotating shaft 104 whose upper end is pivotally supported by the fixed frame 103, a driving means 105 provided at the lower end of the rotating shaft 104, and capable of rotating the rotating shaft 104, and the rotating shaft. A pair of discs 106 a and 106 b are provided as connecting tools disposed (fixed) at the upper and lower positions around 104. In the circular plate 106a around the rotary shaft 104, three cylinders 107 are disposed in the upward direction so that a gap between the lower casting frame F1a and a pattern plate 214 (to be described later) does not increase during molding. In addition, a guide rod 108 for guiding the rod 107a of the cylinder 107 is provided on the disc 106b.
In the present embodiment, three cylinders 107 are disposed on the circular plate 106a and the guide rod 108 is used. However, the present invention is not limited to this.
The lower casting frame F1a is connected to the rod 107a of the cylinder 107, and the cylinder 107 is disposed around the rotary shaft 104 so as to convey the molded lower mold F1b.
In the present embodiment, the cylinder 107 used at the time of molding is used, and the lower casting frame F1a is connected to the cylinder 107. However, in the present invention, the cylinder 107 can be moved by moving the pattern plate up and down. It is also possible to connect the lower casting frame F1a to the disk 106a without the above.

The upper mold transfer line L2 includes an upper mold making station SS2b in which an upper mold making apparatus 201 is disposed as shown in FIGS. 12 and 15, and an upper mold F2 with a frame as shown in FIGS. A core set station SS4 for joining a core 224, which will be described later, is disposed on the upper mold F2b.
In the present embodiment, an upper mold rotating device 202 that conveys the upper mold F2 with a frame is disposed in the vertical direction of the center of the upper mold conveying line L2. The upper mold rotating device 202 has the same configuration as the lower mold rotating device 102 except that a pressing cylinder 207 used for lowering the upper mold F2 during pressing is attached downward as the pressing device B2. Can do. The pressure cylinder 207 is also used during molding.
That is, the upper mold rotating device 202 is provided with a rotating shaft 204 that is pivotally supported by the fixed frame 103, a driving unit 205 that is provided at the lower end of the rotating shaft 204 and that allows the rotating shaft 204 to rotate, and the rotating shaft 204. A pair of discs 206a and 206b are provided as connecting tools disposed (fixed) at the upper and lower positions around. Note that reference numeral 207 a in FIG. 13 is a rod of the pressure cylinder 207, and reference numeral 208 is a guide rod 208.
Further, the upper casting frame F2a is connected to the rod 207a of the pressure cylinder 207, and the pressure cylinder 207 is disposed around the rotating shaft 204 so as to convey the molded upper mold F2b. .
The cylinder 107 and the pressure cylinder 207 can be hydraulic cylinders or electric cylinders.
In the press apparatus B2 in the present embodiment, three pressure cylinders 207 are disposed on the circular plate 206a and the guide rod 208 is used. However, the present invention is not limited to this. .

  The lower mold making apparatus 101 is an under-blow type molding apparatus, and as shown in FIG. 14, the lower frame 111, a squeeze cylinder 113 capable of raising and lowering the blow head 112, and the pattern plate 114 are raised and lowered. A possible cylinder 115 and a foundry sand tank 117 for supplying sand 116 to the blow head 112 are provided. A blow plate 112b having a nozzle 112a is attached to the blow head 112. 12 to 13, the lower mold making apparatus 101 is omitted for easy understanding of the position of the molding station SS2a.

  The upper mold making apparatus 201 is a top blow molding apparatus, and as shown in FIG. 15, an upper frame 211, a squeeze cylinder 213 capable of moving the blow head 212 up and down, and a pattern plate 214. And a casting sand tank 217 for supplying the sand 116 to the blow head 212. A blow plate 212b having a nozzle 212a is attached to the blow head 212. 12 to 13, the upper mold making apparatus 201 is omitted for easy understanding of the position of the molding station SS2b.

  The core set station SS4 is provided with a core mounting device 220 as shown in FIG. The core mounting device 220 includes a lower machine frame 221a, a slidable upper machine frame 221b, a drive cylinder device 222 supported by an upper end frame of the lower machine frame 221b, and a piston rod of the drive cylinder device 222. And a support 223 fixed to the tip of 222a. When the piston rod 222a of the drive cylinder device 222 is extended to raise the core 224, the tip protrusion of the core 224 is joined to the concave fitting portion 225 of the upper mold F2b.

  In the present embodiment, the lower mold making station is arranged in the lower mold conveying line, and the upper mold making station is arranged in the upper mold conveying line. However, the present invention is not limited to this. In addition, the lower mold making station from the lower mold transfer line and the upper mold making station from the upper mold transfer line can be omitted. For example, the lower mold and the upper mold can be transferred from the lower mold forming station and the upper mold forming station installed on the outside of the lower mold conveying line and the upper mold conveying line to the lower mold conveying line and the upper mold conveying line. . In this case, unlike the present embodiment, a structure in which the cast frame can be placed on the upper mold rotating device and the lower mold rotating device, for example, an insertion structure can be provided.

  Hereinafter, the casting process of the casting equipment in the present embodiment will be described. First, as shown in FIGS. 16-17, the lower mold F1b is formed on the lower casting frame F1a at the lower mold forming station SS2a, and the upper mold F2b is formed on the upper casting frame F2a at the upper mold forming station SS2b. (Molding process). During the molding of the upper mold F2b, the core 224 is mounted on the support 223 of the core mounting apparatus 220.

Next, as shown in FIGS. 18 to 20, after rotating the rotating shaft 104 from the lower mold making station SS2a to the pouring station SS3, the lower mold F1 after molding is rotated, the pouring machine A is tilted and lowered. A predetermined amount of molten metal 121 is poured into the recess 120 of the mold F1b (a pouring step). Similarly, the rotary shaft 204 is rotated from the upper mold making station SS2b to the position of the core setting station SS4 from the upper mold F2 after molding. In addition, the code | symbol Z is a rotation direction.
Further, the core 224 is set on the support 223 of the core mounting device 220 (core setting step). Then, during the pouring step, the piston rod 222a of the drive cylinder device 222 is extended to raise the core 224 and join it to the recessed fitting portion 225 of the upper mold F2b.
In the lower mold making station SS2a and the upper mold making station SS2b, the next lower mold F1b and upper mold F2b are formed during the pouring step and the core setting step.

  Next, as shown in FIGS. 21 to 22, the lower mold F1 in which pouring is completed and the upper mold F2 in which the core 224 is set are rotated to the position of the superposition station S1 by rotating the rotary shafts 104 and 204, respectively. Be transported. Then, the pressurizing cylinder 207 is extended to superimpose the upper mold F2 on the lower mold F1 (superposition process). During this polymerization process, a molding process, a pouring process and a core setting process are performed in the same manner as described above. 21-22, the code | symbol 220 is a core mounting apparatus, the code | symbol 224 is a core, the code | symbol A is a pouring machine, and the code | symbol Z is a rotation direction.

  Next, as shown in FIGS. 23 to 24, in the superposition station S1, the pressure cylinder 207 stops the lowering of the upper mold F2 at a position where the mold is not pushed too much (press completion position) (press process). Then, while pouring hot water into the lower mold F1, the pressurization of the upper mold F2 is released after a predetermined time has elapsed, and the pressing operation is completed. At this time, the lower mold F1 is supported by the receiving tool 301 during the pressing process. Then, the molding process, the pouring process and the core setting process are performed during the pressing process in the same manner as described above. 23-24, the code | symbol 220 is a core mounting apparatus, the code | symbol 224 is a core, and the code | symbol A is a pouring machine.

  Next, as shown in FIGS. 25 to 26, the mold FF that has been pressed is extracted from the upper and lower casting frames F1a and F2a of the upper and lower mold F by the pushing tool 302 while lowering the receiving tool 301. Then, it is pushed out to the conveyor 303 and transferred to the cooling line (frame removal process). When the blanking process is completed, the molding process, the core setting process, and the joining are also completed. 25 to 26, reference numeral 220 denotes a core mounting device, reference numeral 224 denotes a core, and reference numeral A denotes a pouring machine.

  Next, as shown in FIG. 27, the rotary shafts 104 and 204 are rotated to convey the lower casting frame F1a and the upper casting frame F2a to the molding stations SS2a and SS2b, and the lower casting mold F1 and the upper casting mold F2 are superposed. S1 is conveyed to the pouring station SS3 and the core station SS4, and subsequently the molding process, the pouring process, the core setting process and the joining and frame removal processes are performed, and the mold is sequentially transferred to the cooling line.

In this embodiment, immediately after pouring into the lower mold with the frame, the lower mold can be moved from the front of the pouring machine to the superposition station of the press device, and the upper mold with the frame can be lowered and pressed. . Thereby, the production efficiency of cast products can be improved.
In addition, when pouring, the pouring machine does not move back and forth toward the lower mold, so the tilting return angle of the ladle of the pouring machine can be minimized, and the waiting time for pouring is set as the transfer time of the lower mold. Can do.
Furthermore, since the waiting time of the pouring machine is reduced, the decrease in the molten metal temperature (molten metal temperature) in the ladle is reduced, so that the amount of reaction products generated on the surface of the molten metal can be reduced. .

In this embodiment, a ladle tilting type pouring machine is used as the pouring machine. However, the present invention is not limited to this, for example, a nozzle formed at the bottom of the ladle. It is possible to use a pouring machine in which the hole is opened and closed with a stopper and poured into the lower mold.
Further, in the present embodiment, the pouring machine is installed so as not to move in a direction perpendicular to the lower mold, but is moved along the lower mold conveyance line in synchronization with the movement of the lower mold. You can also.

It is a top view which shows schematic structure of the casting installation concerning one embodiment of this invention. It is the schematic which shows the principal part of FIG. It is the fragmentary sectional view seen from the left side of FIG. It is a figure explaining the casting process of the casting equipment concerning one embodiment of the present invention. It is a figure explaining the pouring state. It is a figure explaining the conveyance state of the lower mold after pouring. It is a figure explaining the state which piles up an upper mold on a lower mold, and tilting of a ladle. It is a figure explaining the press completion state and the start state of pouring. It is a figure explaining the state which conveys the following lower casting_mold | template after pouring to the downward direction of a press apparatus. It is a figure explaining embodiment which arranged the lower mold | type conveyance line and the upper mold | type conveyance line side by side up and down. It is a figure explaining the press work of FIG. It is a top view which shows schematic structure of the casting installation concerning other embodiment of this invention. It is an expanded view of the II sectional view of FIG. It is a fragmentary sectional view explaining a lower mold making apparatus. It is a fragmentary sectional view explaining an upper mold making apparatus. It is a figure explaining the molding process in the casting process of the casting equipment concerning other embodiment of this invention. It is an expanded view of the I1-I1 line cross section of FIG. It is a figure which shows the rotation state of the upper mold with a frame and the lower mold with a frame after molding. It is a figure explaining a pouring state and a core set state. It is an expanded view of the I2-I2 line cross section of FIG. It is a figure explaining the superposition state of the upper and lower molds It is an expanded view of the I3-I3 line | wire cross section of FIG. It is a figure explaining a press completion state. It is an expanded view of the I4-I4 line cross section of FIG. It is a figure explaining a blank frame state. It is an expanded view of the I5-I5 line cross section of FIG. It is a figure which shows the rotation state of the upper casting mold with a frame and the lower casting mold with a frame after a punching frame. It is a schematic block diagram of the conventional casting equipment. It is the fragmentary sectional view seen from the left side of FIG.

Explanation of symbols

A Pouring machine B, B1, B2 Press device F Mold F1 Lower mold F1a with frame Lower casting frame F1b Lower mold F2 Upper mold F2a with frame Upper casting frame F2b Upper mold L Molding line L1 Lower mold conveying line L2 Upper mold conveying line M molding apparatus S1 superposition station SS2a lower mold molding station SS2b upper mold molding station SS3 pouring station SS4 core set station 1 traveling carriage 2 movable frame 3 elevating means 4 pressure plate 5 guide rod 6 fixing means 7 molten metal 9 detecting means DESCRIPTION OF SYMBOLS 10 Control means 101 Lower mold making apparatus 102 Lower mold rotating apparatus 104,204 Rotating shaft 201 Upper mold making apparatus 202 Upper mold rotating apparatus 207 Pressure cylinder

Claims (10)

A casting facility used in a casting method for casting a cast product by superimposing a frame upper mold on a frame lower mold into which a predetermined amount of molten metal necessary for casting a cast product is injected,
A molding apparatus for forming a lower mold and an upper mold on the lower casting frame and the upper casting frame;
A lower mold conveying line for conveying the lower mold with a frame molded by the molding apparatus;
An upper mold conveying line for conveying the upper mold with a frame molded by the molding apparatus;
A pouring machine arranged along the lower mold conveying line;
A casting apparatus for casting products, comprising: a pressing device that superimposes an upper mold with a frame on the upper mold conveying line on a lower mold with a frame poured by the pouring machine and superimposes it at a station. 2. The casting product casting apparatus according to claim 1, wherein the pouring machine is disposed along the lower mold conveying line at an upstream position from the superposition station. The casting apparatus for casting products according to claim 2, wherein the pressing device includes a traveling carriage that moves the upper mold with frame from the upper mold transfer line onto the lower mold with frame in the lower mold transfer line. The upper mold conveyance line is juxtaposed on the lower mold conveyance line, a conveyance path at the conveyance end of the upper mold conveyance line is movably provided, and the press device is disposed on the movable conveyance path. The casting equipment for casting products according to claim 2, wherein the casting equipment is made. The pressing device has an elevating means having a pressure plate for pressing the upper mold with the frame superimposed on the lower mold with the frame onto the lower mold with the frame, and a fixing means for fixing the upper mold with the frame to the pressure plate The casting product casting apparatus according to claim 2, comprising: The casting equipment for casting products according to claim 1, 2, 3, 4, or 5, wherein a core setting station for joining a core to an upper mold of the upper mold with a frame is arranged in the upper mold conveying line. The lower mold conveying line and the upper mold conveying line each have a circular shape, and the circular lower mold conveying line and the circular upper mold conveying line are arranged so as to intersect at the superposition station. The casting apparatus for casting products according to claim 1, wherein the molding apparatus is disposed on each of the lower mold conveying line and the upper mold conveying line, and a pouring station is disposed on the lower mold conveying line. A lower mold rotating device that is connected to the lower casting frame in the circular lower mold conveying line to convey the lower mold with a frame, and a frame that is connected to the upper casting frame in the circular upper mold conveying line. The casting apparatus for casting products according to claim 7, further comprising an upper mold rotating device for conveying the upper mold. The lower mold rotating device and the upper mold rotating device each include a rotating shaft, a driving unit that allows the rotating shaft to rotate freely, and a connector disposed around the rotating shaft, and the pressing device includes the upper rotating device. The casting equipment for casting products according to claim 8, wherein the casting equipment is connected to a connecting tool of a mold rotating device. The casting apparatus for casting products according to claim 7, 8 or 9, wherein a core set station for joining a core to the upper mold of the upper mold with frame is arranged in the circular upper mold conveying line.