JPH07290167A - Turn table rotary type die exchanging device - Google Patents

Abstract

PURPOSE:To attain a turn table rotary type die exchanging device capable of carrying a die assembly body to be newly installed, to the specified position in a molding machine by the rotation of a turn table and setting it. CONSTITUTION:This device is provided with a turn table 4 on a base 8. Die moving mechanisms 5 and 6 are laid to be freely drivable symmetrically to the center of the table on the turn table. A cylinder 7 for rotating turn table is provided on the base, and the die moving mechanisms are connected respectively to die moving cylinders 10 and 11. Further, a sprocket is provided on the rod cover of an end face on the opposite side of the die moving cylinder, the one tip part of a chain to be engaged with the sprocket is fixed to the turn table 4, and the other tip parts of the chain are fixed to the die moving mechanism.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turntable rotary mold exchanging device.

[0002]

2. Description of the Related Art Various methods for semi-automatically or automatically changing molds have been proposed and used, and typical methods are as follows: (1) Along a molding machine Rails are provided in parallel with each other, a mold loading / unloading carriage driven on the rails is provided, and a mold provided on the opposite side of the molding machine is used to move the mold assembly on the carriage to a predetermined position of the molding machine. Move to and set. still,
To carry out the mold, perform the reverse operation of carrying in. (2) It is also known that the mold moving device is provided on the upper part of the mold exchanging carriage on one side of the molding machine, and this mold moving device moves a heavy mold assembly. Therefore, the structure must be rigid, and the entire machine frame of the molding machine is inevitably large.

Although not a mold change mechanism, a turntable is used for sand mold making, etc., and the turntable is rotated for each process of moving the mold to the molding position, sand blowing, squeezing, and releasing. It is also known that the present invention is carried out continuously, but in this case it is not the exchange of the mold but the molding of the sand mold, and the present invention is not limited in terms of the technical configuration such as the combination of the members required for each process. It will be obvious to those skilled in the art that it will be quite different.

[0004]

In the above-mentioned exchange method (1), since the die assembly moving cylinder is projected on the opposite side of the exchange carriage, not only the mechanism but also the installation area of the molding machine is large. Therefore, it is not preferable in terms of working environment. Further, in the exchange method of (2) above, since the mold moving device is provided above the mold exchanging carriage, the die assembly is carried out from the mold exchanging carriage by traversing the mold exchanging carriage. However, this method also has a drawback that the installation area of the molding machine must be large.

[0005]

The inventors of the present invention have developed the present invention as a result of various studies and experiments in order to solve the above-mentioned drawbacks of the conventional method. The technical constitution of the present invention is a molding machine. A turntable rotary mold exchanging device is disposed in contact with the die entrance / exit side, and the die exchanging device includes a turntable (4) on a base (8), and the turntable (4) is provided on the turntable (4). The mold moving mechanisms (5) and (6) are mounted symmetrically with respect to the center of the table (4) so that the turntable rotating cylinder (7) is mounted on the base (8). A cylinder rod (9) of the rotating cylinder (7) is rotatably attached to the turntable (4), and the mold moving mechanisms (5) and (6) move the mold respectively. Characterized by being connected to cylinders (10) and (11) There the turntable rotating mold exchanging apparatus, further the mold moving cylinder (10) and (1
Install the sprocket (2
0) and (21) are provided, and one ends of chains (22) and (23) engaged with the sprockets (20) and (21) are fixed to the turntable (4). ) And (23), the other ends are preferably fixed to the mold moving mechanisms (5) and (6).

By adopting such a technical constitution,
Since the upper part of the turntable is open, it is easy to carry in and out the mold assembly, and since there is only one replacement position for the mold assembly, the mechanism is simple, and the turntable after the mold assembly is carried out. By rotating 180 °, it is possible to achieve the effect such that a required mold assembly can be carried into the molding machine.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 is a front view showing an example of a molding machine provided with the rotary mold exchanging device of the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a top view of FIG. 1, and FIGS. The area inside the chain double-dashed line is the turntable rotary mold exchanging device of the present invention. As shown in the figure, the rotary mold exchanging device of the present invention carries out (A) the mold assembly 2 set in the molding machine 1 and a new molding B mold assembly 3 on one side of the molding machine. More loading,
It is a mechanism for mounting and is installed at the entrance of the mold assembly.

The details of the mold exchanging device are shown in FIG. 4 (top view), FIG. 5 (side view) and FIG. 6 (detailed view of turntable) as shown in FIG. 4 is mounted, and is a mechanism capable of rotating the turntable 4 by 180 ° by driving the rotary cylinder 7.

Mold moving mechanisms 5 and 6 are mounted on the upper surface of the turntable 4 symmetrically with respect to the center of the table, and each mold moving mechanism is a guide provided on the turntable 4. The rod receivers 12, 13; 14 and 15 are slidably laid across, and the mold moving mechanisms 5 and 6 are mechanisms that slide by the operation of the mold moving cylinders 10 and 11. The moving cylinders 10 and 11 are both rod cylinders, and both ends of the rods are fixed to the guide rod receivers 12, 13; 14 and 15 described above, and the chain 22 to be described later is attached to the cylinders by the operation of the die cylinders 10 and 11. , 23 as a mechanism connected to each other.

7 to 9 show only one of the mold moving mechanisms in detail, FIG. 7 is a top view, and FIG. 8 is FIG. 9A-A.
FIG. 9 is a front view showing a cross section, and as shown in the drawing, the sprockets 20 and 21 are attached to the rod covers on both sides of the mold moving cylinders 10 and 11, and one of the ends of the chains 22 and 23 is turned through the sprockets. On Table 4,
The other one end is fixed to the mold moving mechanisms 5 and 6.

The chains 22 and 23 are supported at positions opposite to the moving direction of the mold moving cylinders 10 and 11, and the mold moving cylinders 10 and 11 are moved to the left by introducing fluid pressure as shown in FIGS. When moved in the direction, the mold moving mechanisms 5 and 6 are pulled by the chain 22 and move in the circumferential direction by a stroke twice the cylinder moving amount. If the cylinders 10, 11 are moved to the right, the mold moving mechanism 5,
6 is a mechanism that is pulled by the chain 23 and moves to the right by a stroke that is twice the cylinder movement amount.

The clamp table 26 (shown in FIG. 1)
Further, rails 24 and 25 for moving the mold assembly are arranged on the upper surface of the turntable 4 so as to be aligned with each other. The rotary mold exchanging device of the present invention is configured as described above, and the exchanging mode of the die assembly (hereinafter, simply referred to as a die) will be described below.

The turntable 4 connected to the B-die moving mechanism 6 carries out the A-die 2 on the clamp table 26.
The operation sequence when the upper B mold 3 is carried into the clamp table 26 will be described.

There is no mold on the turntable 4 on the mold moving mechanism 5 side, and the clamp table 26 is used.
After “raising”, the A-type mold moving mechanism 5 is moved to the molding machine 1 side by the A-type moving cylinder 10, and then the clamp table 26 is “lowered” to move the mold to the mold moving pin receiver 27. The moving pin 29 is fitted and the A mold 2 and the A mold moving mechanism 5 are connected (see FIG. 9).

The A-die moving mechanism 5 pulls the A-die 2 onto the turntable 4, and the rotary cylinder 7 rotates the turntable 4 by 180 ° to change the position of the die with respect to the molding machine. That is, the B mold 3 is located on the mold entrance / exit side of the molding machine.

The B mold 3 which is connected to the B mold moving mechanism 6 via the B mold moving pin receiver 28 is fed to the molding machine side by the B mold moving mechanism 6. Clamp table 26
By "lifting" and lifting the B mold 3,
The die moving pin 30 provided on one side of the die and the die moving pin receiver 28 of the die moving mechanism 6 are released, that is, the connection between the B die moving mechanism 6 and the B die 3 is released, B mold moving mechanism 6
Only pull back on turntable 4. Then, by fixing the B mold 3 to the clamp table 26, the B mold 3
The molding operation by becomes possible.

When another C mold is to be molded next to the B mold 3, the A mold 2 on the turntable 4 is lifted by a crane or the like during the molding operation by the B mold 3 and replaced. It is sufficient to connect the C die to the A die moving mechanism 5 and wait.

As for the method of exchanging the A mold 2 and the C mold, the mold may be hung and replaced on the turntable 4, but an auxiliary rail is installed on the opposite side of the turntable 4 from the molding machine 1. In other words, the A mold moving mechanism 5 can also carry the A mold 2 out of the turntable 4. As a method of attaching and detaching the molds 2 and 3 and the mold moving mechanisms 5 and 6, other means commonly used by those skilled in the art, such as a crane, a lifter, unillustrated connecting and releasing means, can be used.

[0019]

【The invention's effect】

(1) Since the upper part of the turntable is open, it is easy to lift the mold. (2) In the two-joint truck type mold exchanging device, two mold changing positions are required, but in the case of the turntable type, there is only one position, so the exchanging or replacing mechanism is simple. (3) If the mold to be molded next is set on the turntable during the operation of the molding machine, the mold can be swiftly rotated by rotating the turntable 180 ° after the mold is carried out from the molding machine onto the turntable. Can be loaded into the molding machine side.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a molding machine equipped with a mold exchanging device of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a top view of FIG.

FIG. 4 is a top view showing details of the mold exchanging device of the present invention.

5 is a side view of FIG.

FIG. 6 is a detailed view of the turntable of FIG.

FIG. 7 is a top view of only one side of the mold moving mechanism.

8 is a sectional view taken along line AA of FIG.

9 is a front view of FIG.

[Explanation of symbols]

 1 Molding Machine 2 A Mold 3 B Mold 4 Turntable 5 A Mold Moving Mechanism 6 B Mold Moving Mechanism 7 Rotating Cylinder 8 Base 9 Cylinder Rod 10 A Mold Moving Cylinder 11 B Mold Moving Cylinder 12 Guide Rod Holder 13 guide rod receiver 14 guide rod receiver 15 guide rod receiver 16 guide rod 17 guide rod 18 guide rod 19 guide rod 20 sprocket 21 sprocket 22 chain 23 chain 24 molding machine side rail 25 turntable side rail 26 clamp table 27 for mold movement Pin receiver 28 Mold moving pin receiver 29 Mold moving pin 30 Mold moving pin 31 Rotating shaft

Claims (2)

[Claims] 1. A turntable rotary mold exchanging device is disposed in contact with a die entrance / exit side of a molding machine, and the die exchanging device comprises a turntable (4) on a base (8), The mold moving mechanisms (5) and (6) are mounted on the table (4) so as to be symmetrical with respect to the center of the table (4) so that the turntable rotating cylinder (7) is the base. (8), the cylinder rod (9) of the rotating cylinder (7) is rotatably attached to the turntable (4), and the mold moving mechanisms (5) and ( 6) is the mold moving cylinder (1
0) and (11) are connected to the turntable rotary mold exchanging device. 2. The sprocket (20) and (21) are provided on the rod cover on the opposite end surface of the mold moving cylinders (10) and (11), and the sprocket (20) is provided.
Chains (22) and (2) engaged with and (21)
3) One end of the chains (22) and (23) is fixed to the turntable (4), and the other ends of the chains (22) and (23) are fixed to the mold moving mechanisms (5) and (6). Item 1. A turntable rotary mold exchanging device according to item 1.