JP3937257B2 - Tilt pouring method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tilting pouring method and an apparatus for pouring a molten metal while pouring molten metal while changing the posture from an inclined state to an upright state.
[0002]
[Prior art]
Conventionally, the tilting pouring as described above is generally known as disclosed in Japanese Utility Model Publication No. 63-10209, and the tilting pouring is made by tilting the tilting frame to which the mold is fixed. The post pouring container is connected to the tilting frame so that the pouring port of the pouring container faces the pouring gate of the mold, and the mold and the pouring container are integrally tilted and restored by tilting and returning the tilting frame to pour hot water. I have to.
[0003]
[Problems to be solved by the invention]
In the tilting pouring as described above, it is not possible to change the pouring flow rate of the molten metal in the middle of pouring, so that more appropriate pouring according to the cavity shape of various molds cannot be performed, or the mold to be poured. There was a problem that it was not possible to cope with a change in the type of hot water and the start timing of pouring.
The present invention has been made in view of the above problems, and a tilting pouring method and apparatus that can change the pouring flow rate of the molten metal during pouring and can cope with molds having different pouring amounts. The purpose is to provide.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the basic tilting pouring method according to the present invention is such that a casting mold having a pouring gate is fixed to a tilting frame that is capable of tilting reciprocating rotation, and the casting mold is attached to the pouring vessel side together with the tilting frame. Tilting in the direction of returning the mold by connecting the tilting frame to a support frame that supports the pouring vessel and allowing the pouring gate of the tilted mold to face the pouring port of the pouring vessel. The pouring container is rotated and tilted around the pouring port of the pouring container so that the pouring container can be tilted synchronously with the pouring start timing determined in advance. a step, and as molten metal Engineering you pouring into the mold that is fixed to the tilting frame of the pouring vessel and tuning the pouring container is tilted with tilting in a direction to return the tilting frame, from Specially made Is intended to also basic tilting pouring device of the present invention, a tilt frame which is tiltable reciprocally rotated through the tilting means fixes the mold W having a sprue, an outer portion of the tilting frame supported by the frame via provided, a support frame which is coaxial with the axis of rotation the rotation of the coupled to the tilt has been tilted frame tilting frame, and a link mechanism coupled to the support frame, the link mechanism And a driving means for operating the link mechanism, so that the pouring spout of the pouring container faces the pouring spout of the mold when the support frame is connected to the tilting frame. the pouring vessel while supporting via the link mechanism, forward and reverse rotation of the pouring container by operating the link mechanism by the driving means around the said pouring port And it is characterized in the Turkey allowed.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First rotary shafts 3 and 3A are rotatably supported by first left and right front and rear ends of the base 1 through first bearings 2 and 2A. The first rotary shafts 3 and 3A are entirely window frame-shaped. The right center portions of the frames 4 and 4A formed in the above are connected via mounting brackets 5 and 5A.
The frames 4 and 4A are integrated with a roller conveyor 6 at the bottom and a transfer plate 7 at the ceiling, and the central portion of the left end of the roller conveyor 6 is connected to a piston rod of an electric cylinder 8 as a tilting means. Has been.
Further, a presser cylinder 9 for pressing and fixing a mold W (having a gate R) on the roller conveyor 6 is provided at the center of the transfer plate 7. A mold presser plate 9 A is provided at the tip of the piston rod of the presser cylinder 9. Is attached to constitute the tilting frame 10 as a whole. In addition, horizontal cylinders 11 and 11A are attached to positions corresponding to the mounting brackets 5 and 5A in the window frame-like frames 4 and 4A, and a connecting pin 12 is attached to the end of the piston rod of the horizontal cylinders 11 and 11A. , 12A are attached.
[0006]
Further, the second rotary shafts 14 and 14A are provided concentrically with the first rotary shafts 3 and 3A via the second bearings 13 and 13A at the inner positions of the first bearings 2 and 2A in the base 1. At the same time, the lower left ends of the plate-shaped support frames 15 and 15A are fixed to the second rotating shafts 14 and 14A.
Further, connecting holes 16 and 16A corresponding to the connecting pins 12 and 12A when the tilting frame 10 is tilted are provided at the upper left ends of the support frames 15 and 15A.
Further, one end of a link arm 17 is connected to one second rotating shaft 14A, and the other end of the link arm 17 is connected to a tip of a piston rod of a return cylinder 18 provided on the base 1. The return cylinder 18 is extended to rotate the support frames 15 and 15A to the right about the second rotation shafts 14 and 14A, and to the left of the support frames 15 and 15A connected to the tilting frame 10. During rotation, the return cylinder 18 is configured to be free (pressure release).
[0007]
In addition, one end of the first arm 19, 19A and the second arm 20, 20A is connected to the lower right portion and the upper right portion of the support frames 15, 15A having a plate link shape so as to be rotatable up and down. The lower ends of the third arms 21 and 21A and the fourth arms 22 and 22A are rotatably connected to the proximal end and the distal end of the 19 and 19A, and the proximal and proximal ends of the second arms 20 and 20A are connected. The intermediate positions of the third arms 21 and 21A and the fourth arms 22 and 22A are rotatably connected to each other.
Further, the first to fourth arms (19, 19A to 22, 22A) are connected at a parallel interval so as to form a parallelogram, and the ends of the second arms 20, 20A are connected by a connecting pin rod 23. It is connected.
The lower right portion of the support frame 15 and the first arm 19 are connected by a rotation pin 24. One end of a link arm 25 is fixed to the rotation pin 24, and the other end of the link arm 25 is connected to the support frame. It is connected to the piston rod of the electric cylinder 27 provided on the 15 extension frames 26.
Further, both ends of the mounting plates 28 and 28A are connected between the upper ends of the third arm 21 and 21A and the fourth arms 22 and 22A at rotatable connecting points 32 and 33, and a fan shape is provided between the mounting plates 28 and 28A. On the extension line of the line connecting the connecting points 32 and 33 and the connecting part of the second arm 20 to the support frame 15 is supported. It is attached so that the pouring port 30 of the pouring container 29 is located at the intersection with the. That is, the pouring container 29 is supported by the support frames 15 and 15A via the link mechanism 31 (rotation support mechanism) operated by the driving means (electric cylinder 27).
[0008]
Next, the rotation operation of the pouring container 29 by the rotation support mechanism (link mechanism 31) will be described with reference to the diagram of FIG. When the support frame 15 rotates counterclockwise in the state of FIG. 8, the pouring container 29 is integrally rotated while maintaining the positional relationship with the support frame 15. During this time, when the electric cylinder 27 is extended, the rotation pin 24 is rotated counterclockwise via the link arm 25, the first arm 19 is rotated upward about the rotation pin 24, and the second arm 20 is similarly operated. As a result, the pouring container 29 is also rotated up around the connecting portion with the support frame 15, and the pouring port 29 (on the extension line of the line connecting the connecting portion between the rotary pin 24 and the support frame 15 of the second arm 20). And at the intersection on the line connecting the connection points 32 and 33), the amount of molten metal poured is increased. Conversely, when the electric cylinder 27 is contracted, the pouring container 29 is rotated downward about the pouring port 30 to reduce the amount of pouring and finally stop pouring.
[0009]
The operation of the apparatus configured as described above will be described. In the state shown in FIG. 1 in which the return cylinder 18 is extended and the support frames 15 and 15A are retracted rightward and the molten metal is supplied to the pouring container 29, the presser cylinder 9 is extended and the mold presser plate 9A causes the mold W Is fixed to the roller conveyor 6 and then the electric cylinder 8 as the tilting means is extended to tilt the tilting frame 10 as shown in FIG. By this tilting, the connecting pins 12 and 12A are stopped at positions corresponding to the connecting holes 16 and 16A, and the pouring port 30 of the pouring container 29 faces the pouring gate R of the mold W.
Next, the horizontal cylinders 11 and 11A are operated to fit the connecting pins 12 and 12A into the connecting holes 16 and 16A, and the tilting frame 10 and the support frames 15 and 15A are connected and integrated.
Next, the electric cylinder 27 as a driving means is appropriately operated so as to meet a predetermined pouring start timing, and the pouring container 29 is tilted up and down around the pouring port 30 as shown in FIGS. It will be stopped in any state of.
[0010]
After then return cylinder 18 and the state of free (unplug the pressure), the tilting frame 10 electric cylinder 8 as tilting means is reversely actuated about a first rotation axis 3,3A tilting return engine (the 4) and the pouring container 29 is synchronously tilted to pour the mold W into the state shown in FIG.
During this time, the electric cylinder 8 as the tilting means changes its return rotation speed at an appropriate position, or the electric cylinder 27 as the driving means operates appropriately to change the tilt angle of the pouring container 29 with respect to the mold W, The amount of pouring of the mold W at that time is changed or the amount of pouring from the pouring container 29 is changed. The return cylinder 18 is sequentially pushed back by the counterclockwise rotation of the first rotary shafts 3 and 3A to be in a contracted state.
When the pouring is finished in this way, the horizontal cylinders 11 and 11A reversely operate to pull out the connecting pins 12 and 12A from the connecting holes 16 and 16A, and then the return cylinder 18 is extended and supported by the support frames 15 and 15A. The link mechanism 31 is returned to the state shown in FIG. 1, and the molten metal is supplied to the pouring container 29.
[0011]
In the above embodiment, the electric cylinders 8 and 27 are used as the tilting means of the tilting frame 10 or the driving means of the rotation support mechanism. However, forward and reverse rotating servo motors may be used. What is necessary is just to connect a servomotor, the rotating shaft 3A, and the rotating pin 24 directly.
Further, the link mechanism 31 is adopted as the rotation support mechanism of the pouring container 29, but a rotating mechanism by engaging the rack and the drive gear using the arc surface of the fan-shaped pouring container 29 may be used.
[0012]
【The invention's effect】
As is apparent from the above description, the present invention arranges a support frame that tilts integrally with the tilting frame, and supports the pouring container via a link mechanism that can be rotationally controlled around the pouring port. As a result, it is possible to freely start the tilting pouring, change the pouring amount during pouring, etc., and stop pouring. Further, there are various effects such as the amount of hot water in the mold can be changed by freely changing the speed at which the tilt frame is tilted in the returning direction .
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of the present invention.
2 is a plan view of FIG. 1. FIG.
FIG. 3 is a front view showing a tilting state of the tilting frame.
FIG. 4 is a front view showing a pouring end state.
FIG. 5 is a front view showing a state of a pouring container at a normal pouring start timing.
FIG. 6 is a front view showing the state of the pouring container when the pouring start timing is advanced.
FIG. 7 is a front view showing the state of the pouring container when the pouring start timing is delayed.
FIG. 8 is a diagram showing a link mechanism.
[Explanation of symbols]
3, 3A First rotating shaft 9 Presser cylinder 10 Tilt frame 11, 11A Lateral cylinder 12, 12A Connecting pin 14, 14A Second rotating shaft 15, 15A Support frame 16, 16A Connecting hole 18 Return cylinder 29 Pouring container 30 Pouring port 31 Link mechanism R Yuguchi W Mold

Claims (8)

A mold having a pouring gate is fixed to a tilting frame that is capable of tilting reciprocating rotation, and the mold is tilted together with the tilting frame toward the pouring vessel, and the pouring gate of the tilted mold is poured into the pouring vessel. a step of allowing tilting movement of the infusion hot water container in synchronism with the tilting frame is tilted moving in a direction to return the template linked to a support frame for supporting the pouring vessel with Maseru extraordinary in sprue, to fit the predetermined pouring start timing, the pouring vessel with tilting the pouring vessel comprising the steps of rotating tilted around a pouring port of the infusion hot water container, in a direction to return the tilting frame tilting pouring method according to the molten metal in the pouring vessel is tilted in unison about Engineering you pouring into the mold that is fixed to the tilting frame, characterized in that it consists of a. 2. The tilting pouring method according to claim 1, wherein an amount of pouring from the pouring container is changed by changing an inclination angle of the pouring container with respect to a mold . Tilting pouring method of claim 1, wherein said speed causes tilting in the direction of restoring the tilting frame by changing the way changing the teacup amount of template. A tilting frame 10 which is tiltable reciprocally rotated through the tilting means fixes the mold W having a sprue R, is provided on the outer portion of the tilting frame 10, is connected to the tilt frame 10 that is the tilting said a support frame 15, 15A which is coaxial with the axis of rotation the rotation of the tilting frame 10, a link mechanism 31 connected to the support frame 15, 15A, is supported on the frame 15, 15A via the link mechanism 31 Note A hot water container 29 and drive means for operating the link mechanism 31;
Wherein the pouring container 29 as the pouring port 30 faces the sprue R of the mold W of the support frame 15,15A the pouring vessel 29 when is connected to the tilting frame 10 via the link mechanism 31 while supporting the tilting pouring device, wherein said benzalkonium the pouring vessel 29 the link mechanism 31 is operated by forward and reverse rotation about the sprue 30 by the driving means. Before SL link mechanism 31, the right lower and upper right of the support frame 15, 15A, along with connecting the one end of the first arm 19,19A and second arms 20,20A and enables vertical rotation, the first arm The lower ends of the third arms 21 and 21A and the fourth arms 22 and 22A are rotatably connected to the proximal ends and the distal ends of the 19 and 19A, and the proximal ends and the distal ends of the second arms 20 and 20A are connected. In addition, the intermediate positions of the third arm 21 and 21A and the fourth arm 22 and 22A are connected so as to be rotatable, so that the first to fourth arms are connected at a parallel interval so as to form a parallelogram. 5. The tilting pouring device according to claim 4, wherein the tilting pouring device has a structure as described above. The tilting pouring device according to claim 4, wherein the tilting means is an electric cylinder 8. Before tilting pouring device according to claim 4, wherein the ineffective motion means is an electric cylinder 27. 5. The tilting pouring device according to claim 4, wherein the tilting means and / or the driving mechanism of the link mechanism is a forward / reverse rotation servo motor.

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