JP6125871B2 - Molding machine - Google Patents

Description

  The present invention relates to a molding machine including a movable table for moving a mold, and more particularly, to a molding machine including a movable table for rotating a mold.

  2. Description of the Related Art Conventionally, a two-color molding machine that integrally molds different members in combination is known. In such an injection molding machine called a two-color molding machine, for example, two movable molds are attached to a rotary table that is rotatably provided via a mold mounting plate or the like, and one of the fixed molds. And one of the movable molds attached to the rotary table are clamped, the molten resin is injected and filled to form the primary molded product, and then the rotary table is rotated to leave the primary molded product remaining. One movable mold is moved to a position facing the other fixed mold, the other fixed mold and the one mold are clamped, and molten resin is further injected and filled. One member is formed integrally.

  As related to the prior art, Patent Document 1 discloses an injection molding machine including a rotary table that rotates a movable mold. In Patent Document 1, a temperature is used to cool or heat the movable mold. A reversing plate is provided by wrapping a cable bear (registered trademark), which has a tube and a wire for supplying a heating medium for adjustment, and houses a linear body made of the tube or the wire, around the reversing plate as a rotating table. It is disclosed that it is possible to invert at a high speed and to prevent the excessive portion of the linear body from drooping downward.

Japanese Patent No. 3808410

  In the case of a molding machine provided with a linear body such as a tube or a wire for supplying a temperature adjusting heat medium described in Patent Document 1, an operator on the manufacturer side that manufactures the molding machine goes out to the user and installs it. For example, it is customary to perform installation work for parts other than the main body of the molding machine such as pipes and wires on the site. For example, an operator etc. If the rotary table is rotated, there is a risk that the pipes, wires, etc. will come into contact with surrounding devices and be damaged, so it is desirable to prevent the rotary table from being easily rotated by mistake. It was rare.

  The present invention has been made in view of the above problems, and an object thereof is to provide a molding machine including a movable table that prevents a movable table such as a rotary table from being easily operated due to an erroneous operation.

The invention of this molding machine
A movable table to which a movable mold is attached;
A fixed die plate to which the movable mold and a fixed mold to be opened and closed are attached;
A magnet clamp for attaching and detaching the movable mold to and from the movable table;
An electric motor for driving the movable table;
A movable die plate that operably holds the movable table driven by the electric motor;
A power supply port that switches the magnet clamp to a magnetic or non-magnetic material when energized;
A connection plug provided on a magnet clamp cable connected to the power supply port and energizing the power supply port, and a molding machine comprising:
A locking portion provided on the fixed die plate and capable of locking the connection plug;
A key attached to a part of the striatum attached to the connection plug;
A switch that enables the electric motor to operate only when the key is inserted into a key insertion opening provided in the fixed die plate, and allows the movable table to be driven,
When the movable mold is attached to and detached from the movable table by switching the magnet clamp to a magnetic body or a non-magnetic body, the length of the linear body is when the connection plug is connected to the power supply port. The length is such that the key cannot be inserted into the key insertion slot, and the movable table is configured not to operate .

Furthermore, the invention of this molding machine is
The movable table is a rotary table and is rotated by driving of the electric motor.

  According to the invention of this molding machine, the requirement that it is difficult to insert the key into the key insertion slot functions as an interlock, and it is difficult to insert the key into the insertion slot. Under the connected condition, the rotation of the movable table can be prevented. Therefore, for example, when connecting a pipe or wire to a movable table, etc., or exchanging molds, the movable table can be regulated so that it does not easily operate (rotate), improving safety. In addition, it is possible to prevent the components from coming into contact with surrounding devices due to the rotation of the movable table during the installation work of components such as pipes and wires, and failure.

It is a front view which shows the principal part of the injection molding machine of an example of this invention, and has shown the state which removed the metal mold | die. It is the sectional view on the AA line in FIG.

  Hereinafter, the form for implementing this invention is demonstrated below based on FIG. Of course, it goes without saying that the present invention can be easily applied to configurations other than those described in the embodiments without departing from the spirit of the invention.

  An injection molding machine as an example of a molded body of the present invention includes a movable die plate 2 provided so as to be movable back and forth, and a fixed die plate 4 fixed to a machine base 3. A rotary table (movable table) 5 that is rotated (movable) by driving of the motor 1 and a movable magnet clamp 6 that attracts a movable mold (not shown) to the rotary table 5 by magnetic force are provided. 6 is provided with a power supply port 8 for supplying power to the movable magnet clamp 6 when a connection plug 7 to be described later is connected. When the connection plug 7 is connected to the power supply port 8 and the power supply port 8 is energized by operating the control device of the movable magnet clamp 6, the movable magnet clamp 6 is thereby turned on. Is switched to a magnetic body or a non-magnetic body, and the movable mold can be attached to and detached from the rotary table 5 via the movable side magnet clamp 6. That is, energization from the connection plug 7 to the power supply port 8 is required only when the movable side magnet clamp 6 is switched to a magnetic material or a non-magnetic material.

  The fixed die plate 4 is provided with a fixed side magnet clamp 9 that attracts a fixed mold (not shown) to the fixed die plate 4 by magnetic force, and a connecting portion is provided on the side of the fixed side magnet clamp 9. A locking portion 10 for locking the plug 7 is provided.

  A connection plug 7 to which electric power is supplied from a power supply device (not shown) via a magnet clamp cable 11 is attached with a linear body 12 such as a chain, and is attached to a tip which is a part of the linear body 12. A key 14 is attached as a metal piece that can be inserted into and removed from a key insertion slot 13 provided in the fixed die plate 4. The electric motor 1 can be operated only when the key 14 is inserted into the key insertion slot 13. When the key 14 is inserted into the key insertion slot 13, the limit switch 15 is turned “ON” and the rotary table is turned on. When the key 14 is not inserted into the key insertion slot 13, the limit switch 15 is turned off, and the turntable 5 cannot be rotated.

  Further, the length of the linear member 12 is such that the movable die plate 2 is moved backward to separate the movable die plate 2 and the fixed die plate 4 in order to attach and detach the movable mold to the rotary table 5. The connection plug 7 can be connected to the power supply port 8, but in such a state that the movable die plate 2 and the fixed die plate 4 are separated from each other, the key 14 cannot be inserted into the key insertion slot 13. Thus, in the state where the connection plug 7 is connected to the power supply port 8 where it is difficult to insert the key 14 into the key insertion slot 13, the turntable 5 can be prevented from rotating.

  As described above, according to the present injection molding machine, the requirement that it is difficult to insert the key 14 into the key insertion slot 13 functions as an interlock, and it is difficult to insert the key 14 into the insertion slot 13. Under the situation where the connection plug 7 is connected to the power supply port 8, the rotation of the turntable 5 can be prevented. Therefore, for example, when an operator on the manufacturer side that manufactures an injection molding machine goes to the user and connects a tube or a wire to the rotary table 5 or the like, or performs a mold replacement operation or the like. Since the rotary table 5 can be easily controlled so as not to rotate, the safety can be improved, and further, these parts are accompanied with the rotation of the rotary table 5 during the installation work of parts such as pipes and wires. Can be prevented from coming into contact with surrounding devices and causing failure.

DESCRIPTION OF SYMBOLS 1 Electric motor 2 Movable die plate 4 Fixed die plate 5 Rotating table (movable table)
6 Movable side magnet clamp (magnet clamp)
7 Connection plug 8 Power supply port 10 Locking portion 11 Cable for magnet clamp 12 Wire rod 13 Key insertion port 14 Key 15 Limit switch (switch)

Claims (2)

A movable table to which a movable mold is attached;
A fixed die plate to which the movable mold and a fixed mold to be opened and closed are attached;
A magnet clamp for attaching and detaching the movable mold to and from the movable table;
An electric motor for driving the movable table;
A movable die plate that operably holds the movable table driven by the electric motor;
A power supply port that switches the magnet clamp to a magnetic or non-magnetic material when energized;
A connection plug provided on a magnet clamp cable connected to the power supply port and energizing the power supply port, and a molding machine comprising:
A locking portion provided on the fixed die plate and capable of locking the connection plug;
A key attached to a part of the striatum attached to the connection plug;
A switch that enables the electric motor to operate only when the key is inserted into a key insertion opening provided in the fixed die plate, and allows the movable table to be driven,
When the movable mold is attached to and detached from the movable table by switching the magnet clamp to a magnetic body or a non-magnetic body, the length of the linear body is when the connection plug is connected to the power supply port. Has a length that prevents the key from being inserted into the key insertion slot, and is configured so that the movable table does not operate.   The molding machine according to claim 1, wherein the movable table is a rotary table and is rotated by driving of the electric motor.

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