JPH05229643A - Die changer - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a mold exchanging device that facilitates the exchanging work of upper and lower dies. [Structure] A connecting member 6 provided on the molding machine 1 is rotated and tilted to rotate a connecting member 14 rotatably attached to a parent carriage 10.
Connect to. After this connection, the child carriage 20 is pushed from the parent carriage 10 onto the connecting member 14 to be pushed into the molding machine 1. In the parent carriage 10, the guided rod 8 is engaged with the guide groove 7 and moves along the guide groove 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold exchanging device for exchanging upper and lower molds with respect to a plurality of molding machines having a base and a movable body which moves up and down.

[0002]

2. Description of the Related Art As one type of molding machine, there is a low-pressure casting machine in which molten metal and air are enclosed below a base and the molten metal is sent into the cavities of upper and lower molds by pressurizing the air (for example, mechanical engineering). (See Handbook 17, page 6, page 10). As a method of loading and unloading the upper and lower molds to and from the low-pressure casting machine, there are a method using a forklift and a method using a crane.

[0003]

However, in the method of loading and unloading by lifting the upper and lower molds with a forklift,
Since it is difficult to position the upper and lower molds, the work of exchanging the molds is troublesome. On the other hand, in the method of lifting the upper and lower molds with a crane, hooking the upper and lower molds on the guide rail protruding from the molding machine, and pushing the upper and lower molds into the molding machine while guiding the upper and lower molds with the guide rail, it was hung with a crane. It is not easy to handle heavy upper and lower molds. Therefore, the die replacement work is troublesome.

The present invention has been made in view of the above conventional problems, and an object thereof is to provide a mold exchanging device for facilitating the exchanging work of upper and lower dies.

[0005]

In order to achieve the above object, the invention of claim 1 is rotatably attached to either a parent carriage, a child carriage, or the parent carriage or the base of a molding machine. And a connected member that is fixed to the other of the parent carriage or the base and is connected to the connecting member. The child dolly is mounted on the parent dolly, and the upper and lower molds are mounted on the child dolly to run on the connecting member from the parent dolly and transfer onto the base.

According to a second aspect of the present invention, there is provided a guide means provided on the floor along a plurality of molding machines, and a guided member guided by the guide means, which is capable of traveling along the guide means. A connecting member that is rotatably attached to either one of the dolly or the base of the molding machine, a connected member that is fixed to the other of the dolly or the base and is connected to the connecting member, and the connecting member mounted on the dolly. And a carrier that can move in and out in a direction orthogonal to the direction in which the guide means extends so that the upper and lower molds can be carried in and out of the molding machine.

[0007]

According to the invention of claim 1, by connecting the connecting member to the connected member, the parent carriage is positioned with respect to the molding machine, and the child carriage travels on the connecting member. The mold can be loaded into the molding machine without shifting its position.

According to the second aspect of the present invention, by connecting the connecting member to the connected member, the carriage is positioned with respect to the molding machine, and the carrier conveys the upper and lower metal plates in a direction orthogonal to the traveling direction of the carriage. Since the mold is carried into the molding machine, the upper and lower molds can be carried into the molding machine without shifting their positions.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, the molding machine 1 on the right side is, for example, a low-pressure casting machine, and a movable plate (movable body) 4 penetrating the upright 3 faces above the base plate 2. The base plate 2 fixes the lower mold C1, and a molten metal holding furnace (not shown) is formed below the lower mold C1. On the other hand, the movable plate 4 fixes the upper die C2, and is moved up and down by the operation of the hydraulic cylinder 5 located above. As shown in FIG. 2, a plurality of molding machines 1 are provided, and only two molding machines are shown in this figure.

A guide groove (guide means) 7 is provided on the floor surface 46 in parallel along the plurality of molding machines 1. The guide groove 7 is provided up to the vicinity of the molding machine 1 at the end. The guide groove 7 is formed by the pair of angle members 7a in FIG. 1, and guides the lower end portions of the pair of front and rear guided rods 8 that penetrate the frame 11 of the parent carriage 10 to guide the parent carriage 10. It is possible to run along the groove 7. The guided rod 8 can be pulled out by hand.

The parent carriage 10 has a pair of fixed wheels 12 and free wheels (not shown), and is manually pushed between each molding machine 1 and a preheating furnace (not shown) for the mold C. Make a round trip.
A child carriage (conveyor) 20 on which the upper and lower molds C are mounted is mounted on the parent carriage 10. The child cart 20 is a hand truck and travels on the connecting member 14 to reciprocate between the parent cart 10 and the base plate 2. The trolley 10,
20 is not limited to push-push, but both carriages 10, 20
It is also possible to equip it with a power source.

As shown in FIG. 3, a pair of the connecting members 14 are provided on the left and right of the parent carriage 10. This connecting member 14
Has a long hole 14b through which a horizontal shaft 16 supported by a bracket 15 passes, and is rotatably mounted around the horizontal shaft 16. The connecting member 14 is provided with a pin 14a that projects downward when the connecting member 14 is in a horizontal state. On the other hand, the base plate 2 of the molding machine 1 (FIG. 1) is fixed with the connected member 6 having the fitting hole 6a fitted into the pin 14a.
The connecting member 14 is connected to the connected member 6.

In the plan view of FIG. 4, on the upper surfaces of the frame 11 and the connecting member 14 of the parent carriage 10, the parent carriage 1 is attached.
Rails 1 in the direction X orthogonal to the traveling direction Y of 0
7A, 17B (The top surface of the rail is hatched)
Has been laid. These rails 17A and 17B are
As clearly shown in FIG. 5, the collared wheel 21 of the child cart 20 is guided. The molding machine 1 of FIG. 1 is provided with a fixed stopper 26. In addition, the frame 1 of the parent carriage 10 of FIG.
On the upper surface of 1, a movable stopper 18 for fixing the child carriage 20 in the X direction is provided so as to be able to move up and down.

The upper and lower molds C are fixed to the base plate 22 of the child carriage 20 by the pins 23. For the upper mold C2,
An ear portion C3 is provided on the upper end portion thereof. On the other hand, the molding machine 1 (FIG. 1) is provided with a mold guide member 25 that rotatably supports the guide roller 24, and as shown in FIG.
The mold guide member 25 guides the ears C3 of the upper mold C2. Therefore, the child carriage 20 of FIG. 1 is advanced and retracted in the direction X orthogonal to the direction Y of the guide groove 7 of FIG. 4 to carry the upper and lower molds C into the molding machine 1, or the molding machine 1
It is possible to carry out from. A part of the mold guide member 25 is provided so as to project from the molding machine 1.

The parent carriage 10 is provided with a heater 30. The heater 30 is composed of, for example, a gas burner, and is provided at a position facing the gate C4 of the mold C to heat the cavity C5, as shown in FIG. Reference numeral 31 is a flame guide tube.

Next, a method for exchanging the upper and lower molds C will be described. First, a method of loading the upper and lower molds C into the molding machine 1 will be described. With the guided rod 8 of the parent carriage 10 removed, the upper and lower molds C are taken out from a preheating furnace (not shown) and placed on the child carriage 20 on the parent carriage 10. After that, the parent carriage 10 is manually pushed to a position along the guide groove 7 in FIG. 2, and then the guided rod 8 in FIG. It fits in 7. After this fitting, the parent carriage 10 is pushed along the guide groove 7 to proceed, and before reaching the corresponding molding machine 1 (FIG. 1), as shown in FIG.
As shown by the alternate long and short dash line, after raising the connecting member 14,
The parent carriage 10 is stopped in front of the molding machine 1.

After this stop, the connecting member 14 is rotated and tilted as shown by the solid line to fit the pin 14a at the tip into the fitting hole 6a of the member 6 to be connected. By this fitting, the parent carriage 10, the child carriage 20, and the upper and lower molds C are positioned in the traveling direction Y (see FIG. 2) of the parent carriage 10. After that, the movable stopper 18 is released and the child cart 20 is moved to the rails 17A, 1
Push along 7B and move it to the right, then the upper and lower mold C
The ear portion C3 is guided by the mold guide member 25, and the child carriage 20 on which the upper and lower molds C are placed is carried into the molding machine 1 as shown by the chain double-dashed line in FIG.

After this loading, a clamp (not shown)
The ears C3 of the upper mold C2 are fixed to the movable plate 4, while the child carriage 20 is retracted to above the parent carriage 10. After this retreat, the movable plate 4 is lowered slightly and the lower mold C1 is fixed to the base plate 2. After this fixing, the hooks (not shown) of the upper mold C2 and the lower mold C1 are removed, and the upper and lower molds C are removed.
Installation is completed.

Next, a method for taking out the upper and lower molds C from the molding machine 1 will be briefly described. First, the parent carriage 10 on which the upper and lower molds C are not placed is positioned and stopped in front of the corresponding molding machine 1 as in the case of the above-described loading. Then, the upper and lower molds C are slightly lifted by the movable plate 4, and then the empty child carriage 20 is inserted into the molding machine 1. After this entry, the upper and lower molds C are lowered and placed on the child cart 20. After that, push the child cart 20 onto the parent cart 10,
The upper and lower molds C are taken out from the molding machine 1. At this time, the upper and lower molds C are guided by the mold guide member 25, while the child carriage 20 is guided by the rails 17B and 17A.

In the above structure, the mold exchanging device is
The connecting member 14 is connected to the connected member 6, and the parent carriage 10 is connected.
Is positioned with respect to the molding machine 1, so that the upper and lower molds C on the child carriage 20 can be positioned with respect to the molding machine 1. Further, since the child carriage 20 on which the upper and lower molds C are placed crosses over the connecting member 14 and advances and retreats in the direction X orthogonal to the extending direction Y (FIG. 2) of the guide groove 7, the child carriage 20 is positioned with respect to the molding machine 1. The positions of the upper and lower molds C do not shift. Therefore, the upper and lower mold C
The upper and lower molds C can be easily replaced.

In this embodiment, the connecting member 14 is provided on the parent carriage 10 and the connected member 6 is provided on each molding machine 1, but the connecting member 14 is provided on each forming machine 1 and the connected member 6 is provided. It may be provided on the parent carriage 10. Further, in this embodiment, the child carriage 20 is provided on the parent carriage 10. However, instead of the child carriage 20, another carrier may be provided on the parent carriage 10. Furthermore, in the above-described embodiment, the case where the two carriages 10 and 20 are pushed by hand has been described, but the present invention can be applied to the case of automation.

[0022]

As described above, according to the invention of claim 1, by connecting the connecting member to the member to be connected,
Since the parent carriage is positioned with respect to the molding machine and the slave carriage travels on the connecting member, the upper and lower molds can be carried into the molding machine without shifting their positions. Therefore, the upper and lower molds can be easily replaced.

Further, according to the invention of claim 2, by connecting the connecting member to the connected member, the carriage is positioned with respect to the molding machine, and the upper and lower molds are arranged in a direction orthogonal to the traveling direction of the carriage. Since the carrier for loading into the molding machine is provided, the upper and lower molds can be carried into the molding machine without shifting their positions, and therefore the upper and lower molds can be easily replaced.

[Brief description of drawings]

FIG. 1 is a side view of a molding machine, a parent carriage, and the like showing an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of a parent carriage and a child carriage.

FIG. 4 is a plan view of a parent carriage.

FIG. 5 is a front view of the child carriage traveling on the connecting member.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Molding machine, 2 ... Base (plate), 4 ... Movable plate (movable body), 6 ... Connected member, 7 ... Guide groove (guide means), 8 ... Guided rod (guided means), 10 ... ( parent)
Cart, 14 ... Connecting member, 20 ... Child cart (conveyor), 46
... floor surface, C ... upper and lower molds, Y ... direction in which guide means extends,
X ... Direction orthogonal to each other.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B65G 47/66 8010-3F // B60P 1/00 H 7140-3D (72) Inventor Kenichi Hayashi Hyogo 170 Yamanoue, Hiraoka-cho, Kakogawa-shi, Kagawa Kawasaki Heavy Industries Co., Ltd., inside Kakogawa Plant (72) Inventor Fujio Maeda 1-1 Kawasaki-cho, Akashi-shi, Hyogo Inside Kawasaki Heavy Industries, Ltd. Akashi Plant (72) Inventor, Fumio Sato Hyogo Prefecture 1-1 Kawasaki-cho, Akashi-shi Kawasaki Heavy Industries Ltd. Akashi Factory

Claims (2)

[Claims] 1. A mold exchanging device for exchanging upper and lower molds for a plurality of molding machines having a base to which a lower mold is fixed and a movable body to which the upper mold is fixed and which moves up and down. There is a parent carriage, a connecting member rotatably attached to either the parent carriage or the base, and a connected member fixed to the other of the parent carriage or the base and to which the connecting member is joined. A mold exchanging device which is mounted on the parent carriage, and has a child carriage on which the upper and lower molds are mounted and which travels on the connecting member from the parent carriage and transfers to the base. 2. A mold exchanging device for exchanging upper and lower molds for a plurality of molding machines having a base to which a lower mold is fixed and a movable body to which the upper mold is fixed and which moves up and down. A guide means provided on the floor along the molding machines, a guided member guided by the guide means, and a trolley that can travel along the guide means, and the trolley or the base. A connecting member that is rotatably attached to one of the two, a connected member that is fixed to the other of the carriage or the base and that is connected to the connecting member, and a direction that is orthogonal to the extending direction of the guide means mounted on the carriage. A mold exchanging device provided with a conveyor that can move in and out in the direction of moving to and from the molding machine.