JPH0524074A - Exchange method of mold of injection molding machine - Google Patents

Abstract

PURPOSE:To provide an exchange method of molds of an injection molding machine where an installation space for a floor surface is not necessitated, moreover the same is compact, a number of installation units of the injection molding machines per the same factory area can be increased and automatic exchange of the molds is made possible. CONSTITUTION:Tracks 7, 7 are provided on a frame 2 of an injection molding machine 1 under a state running along mold clamping and breaking directions of a mold clamping device 4 extending between a mold fitting part 20 of the foregoing mold clamping device 4 and a mold storing device 31 storing a mold 10 fitted to the mold fitting part 20. A transmounting truck 12 on which a chucking device 11 is mounted as a mold carrying-in and carrying-out device which is runnable freely on the trucks 7, 7 and capable of holding movably vertically the mold 10 is provided. Carrying-in or carrying-out of the mold 10 to the mold fitting part 20 is performed through the transmounting truck 12. Therefore, an installation space is not required and the present machine can be made compact.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for exchanging a mold of an injection molding machine, which is for carrying a mold in and out of a mold clamping device of an injection molding machine.

[0002]

2. Description of the Related Art Conventionally, as a mold replacement method for an injection molding machine,

A) A tool for carrying in or carrying out a mold from the lateral direction of the injection molding machine through a mold carrying-in / carrying-out device from a carriage which runs on a rail installed in parallel with the injection molding machine. . b) A tool that chucks a mold by a chuck device and carries the mold in or out from above. Etc. are known. For example, as a method performed from the lateral direction of a), there is a method disclosed in Japanese Utility Model Publication No. 2-2576.

This is provided with a movable carriage on the opposite side of the injection molding machine, and a mold exchange table having a transfer means for transferring the mold from the lateral direction of the injection molding machine on the upper surface of the carriage. Is carried in and out laterally. Also, b)
From above, there is a Japanese Patent Publication No. 59-48737.
Some are described in Japanese Patent Publication.

This is because a mold stock table having a conveyor roll is installed on the floor surface on the opposite side of the injection injection molding machine, and a column is erected between the mold stock table and the injection molding machine.
A swivel arm having a T-shape is provided on the upper surface of the column, chucking devices for chucking the mold are attached to both ends of the arm, and the chucking device is moved up and down by an elevating cylinder to carry the mold in and out upwards. It is a method to do from. In this case, the loading and unloading of the mold is performed by turning the arm 180 degrees.

Further, as another embodiment, a fixed arm, not a swing arm, is made to project from above the mold stock table to above the injection molding machine, and the transfer table having the chuck device moves on this arm. It is done in this way. Also, similarly, from above b),
This is disclosed in Japanese Patent Publication No. 58-18899.

In this method, a traveling rail is installed above the injection molding machine and a die stocker installed on the side of the injection molding machine at a right angle, and a die transfer robot that moves on the traveling rail is provided. , This robot carries in the mold,
It is carried out.

Conventionally, a mold exchange carriage called a mold carrier is provided on the operating side or the non-operating side of an injection molding machine,
Since the molds are carried in and out laterally, installation space for both the injection molding machine and the mold changing device is required, so the number of devices (M / C) installed in the same area is reduced. There is a problem that it ends up.

[0009]

SUMMARY OF THE INVENTION In the conventional mold exchanging method for an injection molding machine, as described above, the dolly or stocker installed on the non-operating side or the operating side of the injection molding machine is used to eject the injection molding machine. The die mounting portion is carried in and out by a transfer means from the lateral direction, or the die is carried in and out by a chuck device, a transfer robot or the like from above.

Therefore, in either case, a carriage or a support is required on the side of the injection molding machine, or a support is provided on the side.
Since a traveling rail and a robot etc. installed in the direction perpendicular to the molding machine above are necessary, the number of injection molding machines installed per same factory area may be reduced, and
The method using a transfer robot for transferring on the traveling rail is effective when the equipment scale is large, but lacks practicality when the scale is small.

The present invention has been made based on the above circumstances, and it does not require an installation space for the floor surface, is compact, and can increase the number of injection molding machines installed per same factory area. An object of the present invention is to provide a method for exchanging a mold of an injection molding machine that enables exchange.

[0012]

In order to solve the above-mentioned problems, the present invention solves the above problems by clamping a mold clamping device on a frame of an injection molding machine, in a state along a mold opening direction, and in a mold of the mold clamping device. A track is provided between the mold mounting part and the mold storing means for storing the mold mounted on the mold mounting part, and the track is held on the track so that the mold can move up and down. A mold for an injection molding machine is provided which is provided with a transfer carriage equipped with a mold carrying-in / carrying-out means, and which carries in / carries out a mold from / to the mold mounting portion via the transfer carriage carrying the mold carrying-in / carrying-out means. There is a replacement method.

[0013]

According to the mold changing method of the injection molding machine of the present invention,
The mold is clamped on the upper part of the frame of the injection molding machine, and the mold to be carried in by the mold carrying-in / carrying-out means of the transfer car that moves on the track provided in the mold opening direction is chucked to inject the transfer car. After moving to the upper part of the mold attachment part of the machine, it is carried in by the mold carry-in / carry-out device. Further, the mold to be carried out is grasped and carried out from the mold mounting portion to the transfer carriage.

At this time, the transfer carriage equipped with the mold loading / unloading means can be installed in the installation space of the injection molding machine by running on the track provided on the frame of the injection molding machine. Therefore, the number of injection molding machines installed in the same area can be increased.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The injection molding machine 1 of the present invention includes a frame 2 (frame).
The injection device 3 and the mold clamping device 4 are installed on the upper surface of the.

Further, on the operation side and the non-operation side of the upper surface of the frame 2, two tracks 7 made of rails are laid in parallel along the mold opening and mold opening direction of the mold clamping device 4. ing. Stoppers 8 are attached to both ends thereof.

Further, on these tracks 7, 7, there are two wheels 9 on one side, and a chuck as a die loading / unloading means capable of vertically holding a die 10 to be loaded / unloaded. A transfer carriage 12 equipped with a king device 11 is movably mounted.

The transfer carriage 12 includes a drive unit 15 (see FIG. 3).
It is possible to freely move on the tracks 7 and 7 and stop at a desired position by the reference). The drive device 15 transmits the driving force of a forward / reverse rotatable electric motor 16 with a brake to a screw shaft 18 via a reduction mechanism 17.
A nut member (not shown) screwed onto the screw shaft 18
The transfer carriage 12 equipped with is moved.

Further, the transfer carriage 12 is provided with a movable frame 21 in a state of straddling the upper part of the die mounting portion 20 of the injection molding machine 1. This movable frame 21 has cylinder rods 22 of two hydraulic cylinders 22, 22 at both ends thereof.
It is supported by being attached to the upper ends of a and 22a, and can be moved up and down. Further, a movable frame 21 is provided upright, and the chucking device 11 is attached to substantially the center of the movable frame 21.

The chucking device 11 uses an air cylinder (not shown) to insert a rod (not shown) into a hanging hole (not shown) provided in the die mounting plate 10a of the die 10 so that the die 10 is held. It is designed to be chucked.

Further, a guide member (not shown) for guiding the mold 10 when the mold 10 is carried in and out, a landing stopper, a mold automatic clamp device, etc. are attached to the fixed die plate 6 and the movable die plate 25. Has been.

Further, at one end side in the traveling direction of the transfer carriage 12 on which the chucking device 11 is mounted, that is, on the upper side of the mold clamping cylinder 5, a rotatable transfer capable of mounting a plurality of molds 10 thereon. A turntable 30 for mounting is provided and constitutes a mold storage means 31. On the turntable 30,
The molds 10 can be stacked on the A side 30a and the B side 30b, respectively.

Next, the operation will be described. When the mold 10 is carried in, the mold 10 (hereinafter referred to as the next mold) 10 to be used is placed on the A side 30a of the turntable 30. On the other hand, the transfer cart 1 equipped with the chucking device 11
The mold 2 is moved to a position facing the mold mounting portion 20, and the mold 10 (hereinafter referred to as a cash mold) that has been used so far is carried out upward. Thereafter, the transfer carriage 12 is moved in the mold clamping end direction, that is, the arrangement direction of the mold storing means 31, while the cash mold 10 is chucked, and the cash mold 10 is lowered to the B side 30b of the turntable 30. Reprint. Then,
The turntable 30 rotates 180 °.

Thereafter, the chucking device 11 chucks the next die 10 placed on the A side 30a of the turntable 30 and moved to the B side 30b, and lifts the die 10 upward to move it to the fixed die direction 6 That is, the mold 10 is moved toward the mold mounting portion 20, and then the chucking device 11 lowers the next mold 10 until it comes into contact with the landing stopper. Then, it is fixed to the fixed die plate 6 and the moving plate 25 with an automatic die clamping device. This completes the loading operation of the next die 10.

As described above, according to the present invention, the mold clamping device 4 is clamped on the frame 2 of the injection molding machine 1 along the mold opening direction, and the mold mounting portion 20 of the mold clamping device 4 is used. The tracks 7, 7 are provided between the mold mounting means 31 for storing the mold 10 mounted on the mold mounting portion 20, and the mold 10 can be moved on the tracks 7, 7. A transfer carriage 12 equipped with a chucking device 11 as a mold loading / unloading means that can be held vertically movable is provided.
The die 10 is carried in or out through the die mounting portion 20 via the.

Therefore, according to this die replacement method,
The transfer carriage 12 equipped with the chucking device 11 can be installed in the installation space of the injection molding machine 1 by traveling on the tracks 7, 7 provided on the frame 2 of the injection molding machine 1. And injection molding machine 1 within the same area
You can increase the number of installed.

Further, by making the mold storage means 31 a rotatable turntable 30 on which a plurality of molds 10 can be placed, the molds can be exchanged more efficiently. . It is needless to say that the present invention can be variously modified without departing from the scope of the invention.

[0028]

As described above, according to the present invention, the mold clamping device is mounted on the frame of the injection molding machine in a state along the mold opening direction and the mold mounting portion of the mold clamping device. A mold carry-in / carry-out that can provide a track between the mold storage means for storing the mold attached to the mold mounting portion, and can run on the track and can hold the mold vertically movable. There is provided a transfer carriage equipped with the means, and there is a mold exchange method for an injection molding machine in which a mold is carried in or out of the mold clamping device via the transfer carriage carrying the mold loading / unloading means.

Therefore, according to this mold exchanging method,
The transfer carriage equipped with the mold loading / unloading means can be installed in the installation space of the injection molding machine by running on the track provided on the frame of the injection molding machine, and within the same area. It is possible to increase the number of installed injection molding machines.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of an injection molding machine to which a mold exchanging method of the present invention can be applied.

FIG. 2 is a schematic plan view of FIG.

FIG. 3 is a schematic right side view of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Injection molding machine, 2 ... Frame, 3 ... Injection device, 4 ... Mold clamping device, 7 ... Orbit, 10 ... Mold, 11 ... Chucking device (mold loading / unloading means), 12 ... Transfer cart, 20 ... mold mounting portion, 30 ... turntable, 31 ... mold storage means.

Claims (2)

[Claims] 1. A mold clamping part of a mold clamping device on a frame of an injection molding machine, along a mold opening direction, and a mold mounting part of the mold clamping device and a mold mounted on this mold mounting part. A track is provided between the mold storing means and the mold storing means, and a transfer carriage equipped with a mold carrying-in / carrying-out means capable of running on the track and vertically holding the mold is provided. A method of exchanging a die for an injection molding machine, characterized in that the die is carried in or out from the die mounting portion via a transfer carriage equipped with the die carry-in / out means. 2. The method of exchanging a mold for an injection molding machine according to claim 1, wherein the mold storing means has a rotatable turntable structure capable of mounting a plurality of molds.